35 research outputs found
Contrasting Photoelectrochemical Behaviour Of Two Isomeric Supramolecular Dyes Based On Meso-tetra(pyridyl)porphyrin Incorporating Four (μ3-oxo)- Triruthenium(iii) Clusters
No full textA saddle shaped tetracluster porphyrin species containing four [Ru 3O(OAc)6(py)2]+ clusters coordinated to the N-pyridyl atoms of 5,10,15,20-tetra(3-pyridyl)porphyrin, H 2(3-TCPyP), has been investigated in comparison with the planar tetra(4-pyridyl)porphyrin analogue H2(4-TCPyP). The steric effects from the bulky peripheral complexes play a critical role in the H 2(3-TCPyP) species, determining a non-planar configuration around the porphyrin centre and precluding any significant π-electronic coupling, in contrast with the less hindered H2(4-TCPyP) species. Both systems exhibit a photoelectrochemical response in the presence of nanocrystalline TiO2 films, involving the porphyrin excitation around 450 nm. However, only in the H2(4-TCPyP) case do the cluster moieties also contribute to the photoinduced electron injection process at 670 nm, reflecting the relevance of the electronic coupling between the porphyrin centre and the peripheral complexes. © The Royal Society of Chemistry and the Centre National de la Recherche Scientifique.32711671174Araki, K., Toma, H.E., Supramolecular porphyrins as electrocatalysts, in (2006) N-4 Macrocyclic Metal Complexes, Ed., , J. H. Zagal, F. Bedioui and J.-P. Dodelet, Springer, pp. 255-302Toma, H.E., Araki, K., (2000) Coord. Chem. Rev., 196, p. 307Latos-Grazynski, L., Rachlewicz, K., Wojaczynski, J., (1999) Coord. Chem. Rev., 192, p. 109Imamura, T., Fukushima, K., (2000) Coord. Chem. Rev., 198, p. 133Sanders In, J.K.M., (2000) The Porphyrin Handbook, Ed., , K. M. Kadish, et al., Academic Press, New YorkChambron, J.C., Heitz, V., Sauvage In, J.P., (2000) The Porphyrin Handbook, Ed., , K. M. Kadish, et al., Academic Press, New YorkBaldini, L., Hunter, C.A., (2002) Advances in Inorganic Chemistry, Vol. 53Prodi, A., Indelli, M.T., Kleverlaan, C.J., Alessio, E., Scandola, F., (2002) Coord. Chem. Rev., 229, p. 51Rea, N., Loock, B., Lexa, D., (2001) Inorg. Chim. Acta, 312, p. 53Mayer, I., Nunes, G., Toma, H.E., (2006) Eur. J. Inorg. Chem., 4, p. 850Quintino, M.S., Araki, K., Toma, H.E., (2006) Talanta, 4 (68), p. 1281Winnischofer, H., Toma, H.E., Araki, K., (2006) J. Nanosci. Nanotechnol., 6, p. 1701Mayer, I., Nakamura, M., Toma, H.E., Araki, K., (2006) Electrochim. Acta, 52, p. 263Toma, H.E., Araki, K., (1990) J. Chem. Res. (S), p. 82Mayer, I., Formiga, A.L.B., Engelmann, F., Winnischofer, H., Oliveira, P.V., Tomazella, D.M., Toma, H.E., Araki, K., (2005) Inorg. Chim. Acta, 358, p. 2629Quintino, M.S., Winnischofer, H., Nakamura, M., Toma, H.E., Araki, K., Angnes, L., (2005) Anal. Chim. Acta, 539, p. 215Nunes, G., Mayer, I., Toma, H.E., Araki, K., (2005) J. Catal., 236, p. 55Araki, K., Winnischofer, H., Viana, H.E., Toyama, M.M., Engelmann, F., Mayer, I., Formiga, A.L.B., Toma, H.E., (2004) J. Electroanal. Chem., 562, p. 145Toma, H.E., Araki, K., Alexiou, A.D.P., Nikolaou, S., Dovidauskas, S., (2001) Coord. Chem. Rev., 219, p. 187Toma, H.E., Cipriano, C., (1989) J. Electroanal. Chem., 263, p. 313Toma, H.E., Matsumoto, F.M., Cipriano, C., (1993) J. Electroanal. Chem., 346, p. 261Toma, H.E., Araki, K., Silva, E.O., (1998) Monatsh. Chem., 129, p. 975Dovidauskas, S., Toma, H.E., Araki, K., Sacco, H.C., Iamamoto, Y., (2000) Inorg. Chim. Acta, 305, p. 206Araki, K., Dovidauskas, S., Winnischofer, H., Alexiou, A.D.P., Toma, H.E., (2001) J. Electroanal. Chem., 498, p. 152Winnischofer, H., Otake, V.Y., Dovidauskas, S., Nakamura, M., Araki, K., Toma, H.E., (2004) Electrochim. Acta, 49, p. 3711Sawyer, D.T., Roberts, J.L., (1974) Experimental Electrochemistry for Chemists, , WileyAdler, A.D., Longo, F.R., Finarell d, J., Goldmach, J., Assour, J., Korsakof, L., (1967) J. Org. Chem., 32, p. 476Kalyanasundaram, K., (1984) Inorg. Chem., 23, p. 2453Nazeeruddin, M.K., Kay, A., Humphry-Baker, R., Muller, E., Liska, P., Vanchopoulos, N., Grätzel, M., (1993) J. Am. Chem. Soc., 115, p. 6382Araki, K., Toma, H.E., (2002) Cur. Org. Chem., 6, p. 21Araki, K., Toma, H.E., (1993) J. Coord. Chem., 30, p. 9Meot-Ner, M., Adler, A.D., (1975) J. Am. Chem. Soc., 97, p. 5107Gouterman, M., (1961) J. Mol. Spectrosc., 6, p. 138Gouterman, M., Snyder, L.C., Wagniere, G.H., (1963) J. Mol. Spectrosc., 11, p. 108Baumann, J.A., Salmon, D.J., Wilson, S.T., Meyer, T.J., Hatfield, W.E., (1978) Inorg. Chem., 17, p. 3342Alexiou, A.D.P., Toma, H.E., (1997) J. Chem. Res. (S), p. 338Toma, H.E., Alexiou, A.D.P., (1995) J. Chem. Res. (S), p. 134Janson, T.R., Katz In, J.J., (1979) Nuclear Magnetic Resonance of Diamagnetic Porphyrins, Ed., , D. Dolphin, Academic PressChernook, A.V., Rempel, U., Vonborczyskowski, C., Shulga, A.M., Zenkevich, E.I., (1996) Chem. Phys. Lett., 254, p. 229Alessio, E., Geremia, S., Mestroni, S., Iengo, E., Srnova, I., Slouf, M., (1999) Inorg. Chem., 38, p. 869Alessio, E., Geremia, S., Mestroni, S., Srnova, I., Slouf, M., Gianferrara, T., Prodi, A., (1999) Inorg. Chem., 38, p. 2527Fleischer, E.B., Shachter, A.M., (1991) Inorg. Chem., 30, p. 3763Alexiou, A.D.P., Toma, H.E., (1993) J. Chem. Res. (S), p. 464O'Reagan, B., Grätzel, M., (1991) Nature, 353, p. 737Nazeeruddin, M.K., Humphry-Baker, R., Liska, P., Gratzel, M., (2003) J. Phys. Chem. B, 107, p. 8981Wang, P., Zekeeruddin, S.M., Moser, J.E., Humphry-Baker, R., Comte, P., Aranyos, V., Hagdeldt, A., Gratzel, M., (2003) Adv. Mater., 16, p. 1806Haque, S.A., Palomares, E., Cho, B.M., Green, A.N.M., Hirata, N., Klug, K.R., Durrant, J.R., (2005) J. Am. Chem. Soc., 127, p. 3456Tributsch, H., (2004) Coord. Chem. Rev., 248, p. 1511Wurfel, U., Wagner, J., Hinsch, A., (2005) J. Phys. Chem. B, 109, p. 20444Durr, M., Bamedi, A., Yasuda, A., Nelles, G., (2004) Appl. Phys. Let., 84, p. 3397Kroon, J.M., Bakker, N.J., Smit, H.S.P., Liska, P., Thampi, K.R., Wang, P., Zakeeruddin, S.M., Tulloch, G.E., (2007) Prog. Photovolt: Res. Appl., 15, p. 1Bignozzi, C.A., Argazzi, R., Indelli, M.T., Scandola, F., (1994) Sol. Energy Mater. Sol. Cells, 32, p. 229Haque, D.S., Handa, S., Peter, K., Palomares, E., Thelakkat, M., Durrant, J.R., (2005) Angew. Chem., Int. Ed., 44, p. 5740Nogueira, A.F., Toma, S.H., Vidotti, M., Formiga, A.L.B., Torresi, S.I.C., Toma, H.E., (2005) New J. Chem., 29, p. 320Nogueira, A.F., Furtado, L.F.O., Formiga, A.L.B., Toma, H.E., (2004) Inorg. Chem., 43, p. 396Nogueira, A.F., Formiga, A.L.B., Winnischofer, H., Toma, H.E., (2004) Photochem. Photobiol. Sci, 3, p. 56Furtado, L.F.O., Alexiou, A.D.P., Gonçalves, L., Toma, H.E., Araki, K., (2006) Angew. Chem., Int. Ed., 45, p. 314
A New Platinum Complex With Tryptophan: Synthesis, Structural Characterization, Dft Studies And Biological Assays In Vitro Over Human Tumorigenic Cells
No full textA new platinum(II) complex with the amino acid L-tryptophan (trp), named Pt-trp, was synthesized and characterized. Elemental, thermogravimetric and ESI-QTOF mass spectrometric analyses led to the composition [Pt(C 11H11N2O2)2] ×6H2O. Infrared spectroscopic data indicate the coordination of trp to Pt(II) through the oxygen of the carboxylate group and also through the nitrogen atom of the amino group. The 13C CP/MAS NMR spectroscopic data confirm coordination through the oxygen atom of the carboxylate group, while the 15N CP/MAS NMR data confirm coordination of the nitrogen of the NH2 group to the metal. Density functional theory (DFT) studies were applied to evaluate the cis and trans coordination modes of trp to platinum(II). The trans isomer was shown to be energetically more stable than the cis one. The Pt-trp complex was evaluated as a cytotoxic agent against SK-Mel 103 (human melanoma) and Panc-1 (human pancreatic carcinoma) cell lines. The complex was shown to be cytotoxic over the considered cells. © 2013 Elsevier B.V. All rights reserved.122209215Barefoot, R.R., (2001) J. Chromatogr. B, 751, pp. 205-211Lebwohl, D., Canetta, R., (1998) Eur. J. Cancer, 34, pp. 1522-1534Rafique, S., Idrees, M., Nasim, A., Akbar, H., Athar, A., (2010) Biotechnol. Mol. Biol. Rev., 5, pp. 38-45Kelland, L., (2007) Nat. Rev. Cancer, 7, pp. 573-584Ivanov, A.I., Christodoulou, J., Parkinson, J.A., Barnham, K.J., Tucker, A., Woodrow, J., Sadler, P.J., (1998) J. Biol. Chem., 273, pp. 14721-14730Khalailar, I., Allardyce, C.S., Verna, C.S., Dyson, P.J., (2005) ChemBioChem, 6, pp. 1788-1795Cutillas, N., Yellol, G.S., Haro, C., Vicente, C., Rodriguez, V., Ruiz, J., (2013) Coord. Chem. Rev., 257, pp. 2784-2797Chiririwa, H., Moss, J.R., Hendricks, D., Smith, G.S., Meijboom, R., (2013) Polyhedron, 49, pp. 29-35Castello, W.S., Spera M B, M., Gomes, A.F., Gozzo, F.C., Lustri, W.R., Formiga, A.L.B., Corbi, P.P., (2011) J. Coord. Chem., 64, pp. 272-280Spera, M.B.M., Quintão, F.A., Ferraresi, D.K.D., Lustri, W.R., Magalhães, A., Formiga, A.L.B., Corbi, P.P., (2011) Spectrochim. Acta A, 78, pp. 313-318Corbi, P.P., Massabni, A.C., Moreira, A.G., Medrano, F.J., Jasiulionis, M.G., Costa-Neto, C.M., (2005) Can. J. Chem.-Revue Canadienne de Chimie, 83, pp. 104-109Corbi, P.P., Massabni, A.C., (2006) Spectrochim. Acta A, 64, pp. 418-419Cavicchioli, M., Massabni, A.C., Heinrich, T.A., Costa-Neto, C.M., Abrão, E.P., Fonseca, B.A.L., Castellano, E.E., Leite, C.Q.F., (2010) J. Inorg. Biochem., 104, pp. 533-540Dunbar, R.C., Steill, J.D., Polfer, N.C., Oomens, J., (2008) J. Phys. Chem. A, 112, pp. 10823-10830Wagner, C.C., Baran, E.J., (2004) Acta Farm. Bonaerense, 23, pp. 339-342Kazachenko, A.S., Legler, A.V., Peryanova, O.V., Vstavskaya, Y.A., (2000) Pharm. Chem. J., 34, pp. 257-258Carvalho, M.A., Souza, B.C., Paiva, R.E.F., Bergamini, F.R.G., Gomes, A.F., Gozzo, F.C., Lustri, W.R., Corbi, P.P., (2012) J. Coord. Chem., 65, pp. 1700-1711Carvalho, M.A., De Paiva, R.E.F., Bergamini, F.R.G., Gomes, A.F., Gozzo, F.C., Lustri, W.R., Formiga, A.L.B., Corbi, P.P., (2013) J. Mol. Struct., 1031, pp. 125-131Schmidt, M.W., Baldridge, K.K., Boatz, J.A., Elbert, S.T., Gordon, M.S., Jensen, J.H., Matsunaga, S.K.N., Montgomery, Jr.J.A., (1993) J. Comput. Chem., 14, pp. 1347-1363Hay, P.J., Wadt, W.R., (1985) J. Chem. Phys., 82, pp. 299-310Ditchfie, R., Hehre, W.J., Pople, J.A., (1971) J. Chem. Phys., 54, pp. 724-728Hehre, W.J., Ditchfie, R., Pople, J.A., (1972) J. Chem. Phys., 56, pp. 2257-2261Francl, M.M., Pietro, W.J., Hehre, W.J., Binkley, J.S., Gordon, M.S., Defrees, D.J., Pople, J.A., (1982) J. Chem. Phys., 77, pp. 3654-3665Harihara, P.C., Pople, J.A., (1973) Theor. Chim. Acta, 28, pp. 213-222Becke, A.D., (1993) J. Chem. Phys., 98, pp. 5648-5652Lee, C.T., Yang, W.T., Parr, R.G., (1988) Phys. Rev. B, 37, pp. 785-789Miertus, S., Scrocco, E., Tomasi, J., (1981) Chem. Phys., 55, pp. 117-129Bonacin, J.A., Formiga, A.L.B., Melo, V.H.S., Toma, H.E., (2007) Vib. Spectrosc., 44, pp. 133-141Scott, A.P., Radom, L., (1996) J. Phys. Chem., 100, pp. 16502-16513Mosmann, T., (1983) J. Immunol. Methods, 65, pp. 55-63(1994) Powder Diffraction Database - CD ROM, , File 46-1043 (JCPDS-ICDD)Hu, J., Fu, R., Ye, C., (1992) Chem. Phys. Lett., 195, pp. 159-162Çakir, S., Biçer, E., (2010) J. Chil. Chem. Soc., 55, pp. 236-239Gao, H., (2011) Spectrochim. Acta A, 79, pp. 687-69
Electrocatalytic Oxidation Of Methanol By The [ru3o(oac) 6(py)2(ch3oh)]3+ Cluster: Improving The Metal-ligand Electron Transfer By Accessing The Higher Oxidation States Of A Multicentered System
No full textThe [Ru3O(Ac)6(py)2(CH3OH)] + cluster provides an effective electrocatalytic species for the oxidation of methanol under mild conditions. This complex exhibits characteristic electrochemical waves at -1.02, 0.15 and 1.18 V, associated with the Ru3 III,II,II/Ru3 III,III,II/ Ru3 III,III,III/Ru3 IV,III,III successive redox couples, respectively. Above 1.7 V, formation of two Ru IV centers enhances the 2-electron oxidation of the methanol ligand yielding formaldehyde, in agreement with the theoretical evolution of the HOMO levels as a function of the oxidation states. This work illustrates an important strategy to improve the efficiency of the oxidation catalysis, by using a multicentered redox catalyst and accessing its multiple higher oxidation states.331020462050Viertler, H., Gruber, J., Pardini, V.L., (2001) Organic Electrochemistry, p. 621. , Lund, H.Hammerich, O., eds.Marcel Dekker: New York, chap. 17Araki, K., Toma, H.E., (2006) N-4 Macrocyclic Metal Complexes, p. 255. , Zagal, J. H.Bedioui, F.Dodelet, J.-P.Springer: New York, chap. 6Araki, K., Dovidauskas, S., Winnischofer, H., Alexiou, A.D.P., Toma, H.E., (2001) J. Electroanal. Chem., 498, p. 152Dovidauskas, S., Toma, H.E., Araki, K., Sacco, H.C., Iamamoto, Y., (2000) Inorg. Chim. Acta, 305, p. 208Toma, H.E., Araki, K., (2009) Progr. Inorg. Chem., 56, p. 379Kuwabara, I.H., Comninos, F.C.M., Pardini, V.L., Viertler, H., Toma, H.E., (1994) Electrochim. Acta, 39, p. 2401Nunes, G.S., Alexiou, A.D.P., Araki, K., Formiga, A.L.B., Rocha, R.C., Toma, H.E., (2006) Eur. J. Inorg. Chem., p. 1487Nunes, G.S., Alexiou, A.D.P., Toma, H.E., (2008) J. Catal., 260, p. 188Alexiou, A.D.P., Dovidauskas, S., Toma, H.E., (2000) Quim. Nova, 23, p. 785Toma, H.E., Araki, K., Alexiou, A.D.P., Nikolaou, S., Dovidauskas, S., (2001) Coord. Chem. Rev., 219-221, p. 187Davis, S., Drago, R.S., (1988) Inorg. Chem., 27, p. 4759Bilgrien, C., Davis, S., Drago, R.S., (1987) J. Am. Chem. Soc., 109, p. 3786Sieben, J.M., Duarte, M.M.E., Mayer, C.E., (2010) Chem Cat. Chem, 2, p. 182Raoof, J.B., Golikan, A.N., Baghayeri, M., (2010) J. Solid State Electrochem., 14, p. 817Raoof, J.B., Karimi, M.A., Hosseini, S.R., Mangelizadeh, S., (2010) J. Electroanal. Chem., 638, p. 33El-Deab, M.S., (2009) Int. J. Electrochem. Sci., 4, p. 1329Zheng, L., Song, J.F., (2010) J. Solid State Electrochem., 14, p. 43Wu, B.H., Hu, D., Kuang, Y.J., Liu, B., Zhang, X.H., Chen, J.H., (2009) Angew. Chem., Int. Ed., 48, p. 4751Suffredini, H.B., Salazar-Banda, G.R., Avaca, L.A., (2009) J. Sol-Gel Sci. Technol., 49, p. 131Balasubramanian, A., Karthikeyan, N., Giridhar, V.V., (2008) J. Power Sources, 185, p. 670Zhao, H.B., Li, L., Yang, J., Zhang, Y.M., (2008) Electrochem. Commun., 10, p. 1527Zhang, D., Ding, Y., Gao, W., Chen, H.Y., Xia, X.H., (2008) J. Nanosci. Nanotechnol., 8, p. 979Sawyer, D.T., Roberts, J.L., (1974) Experimental Electrochemistry for Chemists, , Wiley: New YorkBaumann, J.A., Salmon, D.J., Wilson, S.T., Meyer, T.J., Hatfield, W.E., (1978) Inorg. Chem., 17, p. 3342Allinger, N.L., (1977) J. Am. Chem. Soc., 99, p. 8127Zerner, M.C., Loew, G.H., Kirchner, R.F., Mueller-Westerhoff, U.T., (1980) J. Am. Chem. Soc., 102, p. 589Formiga, A.L.B., Nogueira, A.F., Araki, K., Toma, H.E., (2008) New J. Chem., 32, p. 1167Longuet-Higgins, H., Pople, J.A., (1955) Proc. Phys. Soc., 68, p. 591Latimer, W.M., (1952) The Oxidation States of the Elements and Their Potentials in Aqueous Solutions, , Prentice-Hall: Englewood Cliffs, 2nd edNicholson, R.S., Shain, I., (1964) Anal. Chem., 36, p. 706Sundholm, G., (1971) Acta Chem. Scand., 25, p. 3188Sundholm, G., (1971) J. Electroanal. Chem., 31, p. 265Nash, T., (1953) Biochemistry, 55, p. 41
Small wind turbine energy policies for residential and small business usage in Ontario, Canada
No full textThis paper examines the social barriers, policies, and incentive programs for residential and small business small wind (RBSW) projects, particularly in Ontario, Canada, as well as comparisons with California, US, and the United Kingdom. The alignment between socio-political and community acceptance is considered for its impact on market acceptance of the technology. Barriers inhibiting social acceptance of RBSW projects include adequate capacity factor, cost effectiveness, wind variability, audio-esthetics impact, health and safety, procedural fairness, and transparency. A review of the policies for implementation of small wind projects in each location is presented. Strategies to overcome barriers to social acceptance are examined, along with recommendations for the increased implementation of RBSW projects worldwide. Recommendations to increase social acceptance and subsequent implementation of RBSW projects include the collaboration of government agencies, industry and community members, during RBSW implementation processes, and the provision of consistent, long-term, supportive policies and incentive programs for project owners.Zephyr Alternative Power Inc.Natural Sciences and Engineering Research Council (NSERC) of Canad
The Influence Of Carboxilate, Phosphinate And Seleninate Groups On Luminescent Properties Of Lanthanides Complexes
No full textThe lanthanides(III) complexes [Ln(bza)3(H2O) n]·mH2O, [Ln(ppa)3(H2O) n]·mH2O and [Ln(abse)3(H 2O)n]·mH2O where Ln=Eu3+, Gd3+ or Tb3+ were synthesized using sodium benzoate (Nabza), sodium phenylseleninate (Naabse) and sodium phenylphosphinate (Nappa) in order to verify the influence on coordination modes and the luminescence parameters when the carbon is exchanged by phosphorus or selenium in those ligands. The complexes' stoichiometries were determined by lanthanide(III) titration, microanalysis and TGA. The coordination modes were determined as bidentate bridging and chelate by the FT-IR. The triplet state energies of the ligands were obtained by two different approaches giving a difference of about ~2000 cm-1 between them. The [Eu(abse)3(H2O)] complex shows the higher degree of covalence which was verified by the centroid of 5D0→7F0 transition (17,248 cm-1). On the other hand the [Ln(abse)3(H 2O)n]·mH2O complexes have an inefficient antenna effect verified by the low values of absolute emission quantum yields. The [Ln(ppa)3(H2O)n]·mH2O complexes have higher emission decay lifetime values among the complexes which is a result of the ability of this ligand to form coordination polymers avoiding water molecules in the first coordination sphere. The [Eu(ppa)3] complex has the highest point symmetry around europium(III) among the synthesized complexes, followed by the [Eu(bza)3(H2O) 2]·3/2(H2O) and [Eu(abse)3(H 2O)] complexes where europium(III) show similar point symmetries. As one may expect, the triplet state energy position would change the transfer and/or back energy transfer rates from ligand to metal. The calculation of these rates show that the back energy transfer rates are more affected than the transfer ones by changing the triplet state energy in the range of ~2000 cm -1. The changes in the energy transfer rates from triplet state to europium(III) levels are not sufficient to significantly modify the population of the europium(III) 5D0,1 levels and therefore the emission quantum yield. © 2014 Elsevier B.V. All rights reserved.1542231Bünzli, J.-C.G., Eliseeva, S.V., Basics of lanthanide photophysics (2011) Lanthanide Luminescence: Photophysical, Analytical and Biological Aspects, p. 3. , P. Hänninen, H. Härmä, O.S. Wolfbeis, Springer-Verlag Berlin (Chapter 1)Binnemans, K., (2009) Chem. Rev., 109, p. 4283Binnemans, K., Rare-earth beta-diketones (2005) Handbook on the Physics and Chemistry of Rare Earths, 35, p. 107. , K.A. Gschneider, J.-C.G. Bünzli, V.K. Pecharsky, Elsevier Amsterdam (Chapter 225)D'Aléo, A., Pointillart, F., Ouahab, L., Andraud, C., Maury, O., (2012) Coord. Chem. Rev., 256, p. 1604Andres, J., Chauvin, A.-S., (2013) Phys. Chem. Chem. Phys., 15, p. 15981Smentek, L., Kedziorski, A., (2010) J. Lumin., 130, p. 1154Chen, S., Fan, R.-Q., Sun, C.-F., Wang, P., Yang, Y.-L., Su, Q., Mu, Y., (2012) Cryst. Growth Des., 12, p. 1337Nayak, S., Kostakis, G.E., Anson, C.E., Powell, A.K., (2010) CrystEngComm, 12, p. 3008Stucchi, E.B., Scarpari, S.L., Santos, M.A.C., Leite, S.R.A., (1998) J. Alloys Compd., 275-277, p. 89Scarpari, S.L., Stucchi, E.B., (2001) J. Alloys Compd., 323-324, p. 740Souza, A.P., Rodrigues, L.C.V., Brito, H.F., Junior, S.A., Malta, O.L., (2010) J. Lumin., 130, p. 181Freire, R.O., Rocha, G.B., Simas, A.M., (2005) Inorg. Chem., 44, p. 3299Freire, R.O., Rocha, G.B., Simas, A.M., (2009) J. Braz. Chem. Soc., 20, p. 1638Freire, R.O., Simas, A.M., (2010) J. Chem. Theory Comput., 6, p. 2019Stewart, J.J.P., (2009) MOPAC 2009 Manual, Stewart Computational Chemistry, , Colorado Springs USADeacon, G.B., Phillips, R.J., (1980) Coord. Chem. Rev., 33, p. 227Nakamoto, K., (1997) Infrared and Raman Spectra of Inorganic and Coordination Compounds - Part B: Applications in Coordination, Organometallic, and Bioinorganic Chemistry, , John Wiley New YorkTanner, P.A., (2011) Lanthanide Luminescence in Solids, p. 203. , P. Hänninen, H. Härmä, O.S. Wolfbeis, Springer-Verlag BerlinJudd, B.R., (1962) Phys. Rev., 127, p. 750Ofelt, G.S., (1962) J. Chem. Phys., 37, p. 511Rodrigues, E.M., Souza, E.R., Monteiro, J.H.S.K., Gaspar, R.D.L., Mazali, I.O., Sigoli, F.A., (2012) J. Mater. Chem., 22, p. 24109Monteiro, J.H.S.K., Adati, R.D., Davolos, M.R., Vicenti, J.R.M., Burrow, R.A., (2011) New J. Chem., 35, p. 1234Ferreira, R.A.S., Nobre, S.S., Granadeiro, C.M., Nogueira, H.I.S., Carlos, L.D., Malta, O.L., (2006) J. Lumin., 121, p. 561Werts, M.H.V., Jukes, R.T.F., Verhoeven, J.W., (2002) Phys. Chem. Chem. Phys., 4, p. 1542Frey, S.T., Horrocks, W.D., (1995) Inorg. Chim. Acta, 229, p. 383Malta, O.L., Batista, H.J., Carlos, L.D., (2002) Chem. Phys., 282, p. 21Carlos, L.D., Malta, O.L., Albuquerque, R.Q., (2005) Chem. Phys. Lett., 415, p. 238Ferreira, R.A.S., Nolasco, M., Roma, A.C., Longo, R.L., Malta, O.L., Carlos, L.D., (2012) Chem. Eur. J., 18, p. 12130Carlos, L.D., Ferreira, R.A.S., Bermudez, V.Z., Ribeiro, S.J.L., (2009) Adv. Mater., 21, p. 509Rodrigues, M.O., Júnior, N.B.C., Simone, C.A., Araújo, A.A.S., Brito-Silva, A.M., Paz, F.A.A., Mesquita, M.E., Freire, R.O., (2008) J. Phys. Chem. B, 112, p. 4204Allen, F.H., Cambridge structural database, Version 5.31, November 2009 (2002) Acta Crystallogr. Sect. B: Struct. Sci., 58, p. 380Chandrasekhar, V., Muralidhara, M.G., Thomas, K.R.J., Tiekink, E.R.T., (1992) Inorg. Chem., 31, p. 4707Chakov, N.E., Wernsdorfer, W., Abboud, K.A., Christou, G., (2004) Inorg. Chem., 43, p. 5919McCann, M., Murphy, E., Cardin, C., Convery, M., (1993) Polyhedron, 12, p. 1725Taylor, S.M., McIntosh, R.D., Beavers, C.M., Teat, S.J., Piligkos, S., Dalgarno, S.J., Brechin, E.K., (2011) Chem. Commun., 47, p. 1440Bernot, K., Luzon, J., Sessoli, R., Vindigni, A., Thion, J., Richter, S., Leclercq, D., Van Der Lee, A., (2008) J. Am. Chem. Soc., 130, p. 1619Wang, Y., Parkin, S., Atwood, D., (2000) Chem. Commun., 19, p. 1799Svoboda, T., Jambor, R., Ruzicka, A., Padelkova, Z., Erben, M., Dostal, L., (2010) Eur. J. Inorg. Chem., p. 5222Sá, G.F., Malta, O.L., Donegá, C.M., Simas, A.M., Longo, R.L., Santa-Cruz, P.A., Júnior, E.F.S., (2000) Coord. Chem. Rev., 196, p. 165Dutra, J.D.L., Freire, R.O., (2013) J. Photochem. Photobiol. A, 256, p. 29Malta, O.L., Silva, F.R.G., (1998) Spectrochim. Acta Part A, 54, p. 1593Malta, O.L., Silva, F.R.G., Longo, R., (1999) Chem. Phys. Lett., 307, p. 518Malta, O.L., (2008) J. Non-Cryst. Solids, 354, p. 477
The Use Of Modified Electrodes By Hybrid Systems Gold Nanoparticles/mn-porphyrin In Electrochemical Detection Of Cysteine
No full textMonitoring of biomarkers can be used to early diagnosis of diseases. Changes in levels of cysteine can indicate several disorders, because of this, development of suitable sensors are essential to welfare of people. Herein it was described the electrochemical response of a hybrid system modified electrode composed by gold nanoparticles and manganese meso-tetra(pentafluorophenyl) porphyrin for the sensing of cysteine. For this purpose, fluorine tin oxide-coated glass (FTO) electrodes were chosen as substrate due to their low cost and easily modifying surface. The hybrid system was deposited on the FTO surface using a self-assembly strategy and all experiments were performed at pH 7.0. The obtained modified electrode has shown good response for cysteine oxidation in amperometric studies with figures of merit comparable to other sensors described in literature.198335339Wei, F., Patel, P., Liao, W., Chaudhry, K., Zhang, L., Arellano-Garcia, M., Hu, S., Wong, D.T., Electrochemical sensor for multiplex biomarkers detection (2009) Clin. Cancer Res., 15, pp. 4446-4452Shahrokhian, S., Lead phthalocyanine as a selective carrier for preparation of a cysteine-selective electrode (2001) Anal. Chem., 73, pp. 5972-5978Goodman, M.T., Mcduffie, K., Hernandez, B., Wilkens, L.R., Selhub, J., Vitamin B (12) and cysteine as markers of cervical dysplasia (2000) Cancer, 89, pp. 376-382Chen, X., Zhou, Y., Peng, X., Yoon, J., Fluorescent and colorimetric probes for detection of thiols (2010) Chem. Soc. Rev., 39, pp. 2120-2135Lee, J.-S., Ulmann, P.A., Han, M.S., Mirkin, C.A., A DNA-gold nanoparticle-based colorimetric competition assay for the detection of cysteine (2008) Nano Lett., 8, pp. 529-533Corrêa, C.C., Jannuzzi, S.A.V., Santhiago, M., Timm, R.A., Formiga, A.L.B., Kubota, L.T., Modified electrode using multi-walled carbon nanotubes and a metallopolymer for amperometric detection of L-cysteine (2013) Electrochim. Acta, 113, pp. 332-339Spãtaru, N., Sarada, B.V., Popa, E., Tryk, D.A., Fujishima, A., Voltammetric determination of L-cysteine at conductive diamond electrodes (2001) Anal. Chem., 73, pp. 514-519Wang, J., Electrochemical biosensors: Towards point-of-care cancer diagnostics (2006) Biosens. Bioelectron., 21, pp. 1887-1892Collman, J.P., Chien, A.S., Eberspacher, T.A., Zhong, M., Brauman, J.I., Competitive reaction of axial ligands during biomimetic oxygenations (2000) Inorg. Chem., 39, pp. 4625-4629Mensing, J.P., Wisitsoraat, A., Tuantranont, A., Kerdcharoen, T., Inkjet-printed solgel films containing metal phthalocyanines/porphyrins for opto-electronic nose applications (2013) Sensors Actuat. B Chem., 176, pp. 428-436Vlascici, D., Pruneanu, S., Olenic, L., Pogacean, F., Ostafe, V., Chiriac, V., Pica, E.M., Fagadar-Cosma, E., Manganese(III) porphyrin-based potentiometric sensors for diclofenac assay in pharmaceutical preparations (2010) Sensors (Basel), 10, pp. 8850-8864Wu, Y., Luo, S., Chen, L., Manganese porphyrin functionalized graphene and its application on dimethoate electrochemical sensor (2014) Adv. Mater. Res., 850-851, pp. 152-155Kuwahara, Y., Akiyama, T., Sunao, Y., Construction of gold nanoparticle-ruthenium(II) tris(2, 2′-bipyridine) self-assembled multistructures and their photocurrent responses (2001) Thin Solid Films, 393, pp. 273-277Pillay, J., Ozoemena, K.I., Tshikhudo, R.T., Moutloali, R.M., Monolayer-protected clusters of gold nanoparticles: Impacts of stabilizing ligands on the heterogeneous electron transfer dynamics and voltammetric detection (2010) Langmuir, 26, pp. 9061-9168Toma, S.H., Bonacin, J.A., Araki, K., Toma, H.E., Controlled stabilization and flocculation of gold nanoparticles by means of 2-pyrazin-2-ylethanethiol and pentacyanidoferrate(II) complexes (2007) Eur. J. Inorg. Chem., 2007, pp. 3356-3364Mao, L., Yuan, R., Chai, Y., Zhuo, Y., Yang, X., Yuan, S., Multi-walled carbon nanotubes and Ru(bpy) 3(2+)/nano-Au nano-sphere as efficient matrixes for a novel solid-state electrochemiluminescence sensor (2010) Talanta, 80, pp. 1692-1697De Oliveira, K.M., Dos Santos, T.C.C., Dinelli, L.R., Marinho, J.Z., Lima, R.C., Bogado, A.L., Aggregates of gold nanoparticles with complexes containing ruthenium as modifiers in carbon paste electrodes (2013) Polyhedron, 50, pp. 410-417Lindsey, J.S., Wagner, R.W., Investigation of the synthesis of ortho-substituted tetraphenylporphyrins (1989) J. Org. Chem., 54, pp. 828-836Kadish, K.M., Han, B.C., Franzen, M.M., Syntheses and spectroscopic characteri- zation of and (T (p-Me2N) F4PP) M where T (p-Me2N) F4PP Is the Dianion of porphyrin and MCo(II), Cu(II), or Ni(I1). Structures of (TF5PP) Co A (1990) J. Am. Chem. Soc., pp. 8364-8368IMohajer, D., Jahanbani, M., A UV-vis study of the effects of alcohols on formation and stability of Mn(por)(O)(OAc) complexes (2012) Spectrochim. Acta. A Mol. Biomol. Spectrosc., 91, pp. 360-364Kimling, J., Maier, M., Okenve, B., Kotaidis, V., Ballot, H., Plech, A., Turkevich method for gold nanoparticle synthesis revisited (2006) J. Phys. Chem. B, 110, pp. 15700-15707Britton, H.T., Robinson, R.A., CXCVIII - Universal buger solutions and the dissociation constant of veronal (1923) J. Chem. Soc., pp. 1456-1462Smith, K.M., Syntheses and chemistry of porphyrins (2000) J. Porphyrins Phthalocyanines, 4, pp. 319-324Valicsek, Z., Horváth, O., Application of the electronic spectra of porphyrins for analytical purposes: The effects of metal ions and structural distortions (2013) Microchemical J., 107, pp. 47-62Fratoddi, I., Battocchio, C., Polzonetti, G., Sciubba, F., Delfini, M., Russo, M.V., A porphyrin-bridged pd dimer complex stabilizes gold nanoparticles (2011) Eur. J. Inorg. Chem., 2011, pp. 4906-4913Chen, S.-M., The electrocatalytic reactions of cysteine and cystine by water-soluble iron porphyrin, manganese porphyrin and iron(II) phenanthrolines (1997) Electrochim. Acta, 42, pp. 1663-1673Yang, W., Gooding, J.J., Hibbert, D.B., Characterisation of gold electrodes modified with self-assembled monolayers of L-cysteine for the adsorptive stripping analysis of copper (2001) J. Electro Anal. Chem., 516, pp. 10-16Stevenson, T.P.C., Hillier, J., A study of the nucleation and growth processes in the synthesis of colloidal gold (1951) Discuss. Faraday Soc., 11, p. 55Salimi, A., Hallaj, R., Catalytic oxidation of thiols at preheated glassy carbon electrode modified with abrasive immobilization of multiwall carbon nanotubes: Applications to amperometric detection of thiocytosine, L-cysteine and glutathione (2005) Talanta, 66, pp. 967-975Nekrassova, O., Lawrence, N.S., Compton, R.G., Electrochemically initiated catalytic oxidation of 5-thio-2-nitrobenzoic acid (tnba) in the presence of thiols at a boron doped diamond electrode: Implications for total thiol detection (2003) Electroanalysis, 15, pp. 1655-1660Amini, M.K., Khorasani, J.H., Khaloo, S.S., Tangestaninejad, S., Cobalt(II) salophen-modified carbon-paste electrode for potentiometric and voltammetric determination of cysteine (2003) Anal. Biochem., 320, pp. 32-38Majd, S.M., Teymourian, H., Salimi, A., Fabrication of an electrochemical L-cysteine sensor based on graphene nanosheets decorated manganese oxide nanocomposite modi fied glassy carbon electrode (2013) Electroanalysis, 25, pp. 2201-2210Santhiago, M., Lima, P.R., Santos, W., De, J.R., Kubota, L.T., An amperometric sensor for L-cysteine based on nanostructured platform modified with 5,5′-dithiobis-2-nitrobenzoic acid (DTNB) (2010) Sensors Actuat. B Chem., 146, pp. 213-220Razmi, H., Heidari, H., Nafion/lead nitroprusside nanoparticles modified carbon ceramic electrode as a novel amperometric sensor for L-cysteine (2009) Anal. Biochem., 388, pp. 15-22Zhang, Y., Yang, A., Zhang, X., Zhao, H., Li, X., Yuan, Z., Highly selective and sensitive biosensor for cysteine detection based on in situ synthesis of gold nanoparticles/graphene nanocomposites (2013) Colloids Surf., A: Physicochem. Eng. Aspects, 436, pp. 815-82
Prussian Blue Films Produced By Pentacyanidoferrate(ii) And Their Application As Active Electrochemical Layers
No full textIron complexes such as ferri/ferrocyanides are usually employed as electrochemical mediators in portable devices for the quick diagnosis of diseases. Stable complexes designed for the electrochemical active layer may render devices with better performance and lifetimes than conventional devices. In this work we have synthesized and characterized spectroscopically, electrochemically, and by DFT the complex Na4[Fe(CN)5(isn)] (isn = isonicotinate). This complex was used as a single-source precursor of Prussian Blue (PB) in solution at pH 2.0 and 3.0, as confirmed by UV/Vis spectroscopy. Potentiostatic deposition of PB onto glassy carbon electrodes provided stable films at pH 3.0 and 5.0, with electrocatalytic activity for ascorbic acid oxidation with a linear response in the range 20-200 μM and an limit of detection of 12 μM. The anodic peak potential of the modified electrodes varied with solution pH with a minimum value of 0.350 V versus NHE at pH 5.0.20143458125819Ahn, C.H., Choi, J.-W., Beaucage, G., Nevin, J., Lee, J.-B., Puntambekar, A., Lee, R.J.Y., (2004) Proc. IEEE, 92, pp. 154-173Wang, J., (2008) Chem. Rev., 108, pp. 814-825Zloczewska, A., Celebanska, A., Szot, K., Tomaszewska, D., Opallo, M., Jönsson-Niedziolka, M., (2014) Biosens. Bioelectron., 54, pp. 455-461Corrêa, C.C., Jannuzzi, S.A.V., Santhiago, M., Timm, R.A., Formiga, A.L.B., Kubota, L.T., (2013) Electrochim. Acta, 113, pp. 332-339Nossol, E., Gorgatti Zarbin, A.J., (2012) J. Mater. Chem., 22, pp. 1824-1833Baraldo, L.M., Forlano, P., Parise, A.R., Slep, L.D., Olabe, J.A., (2001) Coord. Chem. Rev., 221, pp. 881-921Toma, H.E., Malin, J.M., (1973) Inorg. Chem., 12, pp. 1039-1045Toma, H.E., Malin, J.M., (1973) Inorg. Chem., 12, pp. 2080-2083Toma, S.H., Bonacin, J.A., Araki, K., Toma, H.E., (2007) Eur. J. Inorg. Chem., pp. 3356-3364Ohba, M., Okawa, H., (2000) Coord. Chem. Rev., 198, pp. 313-328Delongchamp, D.M., Hammond, P.T., (2004) Adv. Funct. Mater., 14, pp. 224-232Karyakin, A.A., (2001) Electroanalysis, 13, pp. 813-819Chen, J., Huang, K., Liu, S., Hu, X., (2009) J. Power Sources, 186, pp. 565-569Wessells, C.D., Peddada, S.V., Huggins, R.A., Cui, Y., (2011) Nano Lett., 11, pp. 5421-5425Yagi, S., Fukuda, M., Makiura, R., Ichitsubo, T., Matsubara, E., (2014) J. Mater. Chem. A, 2, pp. 8041-8047Nie, P., Shen, L., Luo, H., Ding, B., Xu, G., Wang, J., Zhang, X., (2014) J. Mater. Chem. A, 2, pp. 5852-5857Jin, E., Lu, X., Cui, L., Chao, D., Wang, C., (2010) Electrochim. Acta, 55, pp. 7230-7234Castro, S.S.L., Balbo, V.R., Barbeira, P.J.S., Stradiotto, N.R., (2001) Talanta, 55, pp. 249-254Matsumoto, F.M., Temperini, M.L.A., Toma, H.E., (1994) Electrochim. Acta, 39, pp. 385-391Ames, B.N., Shigenaga, M.K., Hagen, T.M., (1993) Proc. Natl. Acad. Sci. USA, 90, pp. 7915-7922Yang, L., Liu, D., Huang, J., You, T., (2014) Sens. Actuators B, 193, pp. 166-172Martinello, F., Luiz Da Silva, E., (2006) Clin. Chim. Acta, 373, pp. 108-116Casella, I.G., Guascito, M.R., (1997) Electroanalysis, 9, pp. 1381-1386Jannuzzi, S.A.V., Martins, B., Felisberti, M.I., Formiga, A.L.B., (2012) J. Phys. Chem. B, 116, pp. 14933-14942Baran, E.J., Muller, A., (1969) Z. Anorg. Allg. Chem., 368, pp. 144-154Gray, H.B., Ballhausen, C.J., (1962) J. Chem. Phys., 36, pp. 1151-1153Formiga, A.L.B., Vancoillie, S., Pierloot, K., (2013) Inorg. Chem., 52, pp. 10653-10663Nunes, F.S., Bonifácio, L.S., Araki, K., Toma, H.E., (2006) Inorg. Chem., 45, pp. 94-101Toma, H., Malin, J., Giesbrecht, E., (1973) Inorg. Chem., 12, pp. 2084-2089Alshehri, S., Burgess, J., Van Eldik, R., Hubbard, C.D., (1995) Inorg. Chim. Acta, 240, pp. 305-311Bal Reddy, K., Van Eldik, R., (1991) Inorg. Chem., 30, pp. 596-598Hoddenbagh, J., Macartney, D., (1986) Inorg. Chem., 25, pp. 2099-2101Bard, A., Faulkner, L., (2012) Electrochemical Methods, , Wiley, New YorkToma, H.E., Creutzl, C., (1977) Inorg. Chem., 16, pp. 545-550Perera, W.N., Hefter, G., (2003) Inorg. Chem., 42, pp. 1230-1234Toma, H.E., (1976) J. Inorg. Nucl. Chem., 38, pp. 431-434Ellis, D., Eckhoff, M., Neff, V.D., (1981) J. Phys. Chem., 96, pp. 1225-1231Itaya, K., Ataka, T., Toshimaf, S., (1982) J. Am. Chem. Soc., pp. 4767-4772Asperger, S., Murati, I., Pavlovic, D., (1953) J. Chem. Soc., pp. 730-736Wang, Z., Yang, H., Gao, B., Tong, Y., Zhang, X., Su, L., (2014) Analyst, 139, pp. 1127-1133Ricci, F., Palleschi, G., (2005) Biosens. Bioelectron., 21, pp. 389-407Pournaghi-Azar, M., (1995) Talanta, 42, pp. 1839-1848Britton, H.T.S., Robinson, R.A., (1931) J. Chem. Soc., pp. 1456-146
Silver Sulfadoxinate: Synthesis, Structural And Spectroscopic Characterizations, And Preliminary Antibacterial Assays In Vitro
No full textThe sulfa drug sulfadoxine (SFX) reacted with Ag+ ions in aqueous solution, affording a new silver(I) complex (AgSFX), which was fully characterized by chemical, spectroscopic and structural methods. Elemental, ESI-TOF mass spectrometric and thermal analyses of AgSFX suggested a [Ag(C12H13N4O2S)] empirical formula. Infrared spectroscopic measurements indicated ligand coordination to Ag(I) through the nitrogen atoms of the (deprotonated) sulfonamide group and by the pyrimidine ring, as well as through oxygen atom(s) of the sulfonamide group. These hypotheses were corroborated by 13C and 15N SS-NMR spectroscopy and by an unconventional structural characterization based on X-ray powder diffraction data. The latter showed that AgSFX crystallizes as centrosymmetric dimers with a strong Ag⋯Ag interaction of 2.7435(6) Å, induced by the presence of exo-bidentate N,N′ bridging ligands and the formation of an eight-membered ring of [AgNCN]2 sequence, nearly planar. Participation of oxygen atoms of the sulfonamide residues generates in the crystal a 1D coordination polymer, likely responsible for its very limited solubility in all common solvents. Besides the analytical, spectroscopic and structural description, the antibacterial properties of AgSFX were assayed using disc diffusion methods against Escherichia coli and Pseudomonas aeruginosa (Gram-negative), and Staphylococcus aureus (Gram-positive) bacterial strains. The AgSFX complex showed to be active against Gram-positive and Gram-negative bacterial strains, being comparable to the activities of silver sulfadiazine.1082180187Kean, W.F., Hart, L., Buchanan, W.W., (1997) Br. J. Rheumato., 36, pp. 560-572Atiyeh, B.S., Costagliola, M., Hayek, S.N., Dibo, S.A., (2007) Burns, 33, pp. 139-148Klasen, H.J., (2000) Burns, 26, pp. 117-130Klasen, H.J., (2000) Burns, 26, pp. 131-138Fox, C.L.J., (1983) Surg. Gynecol. Obstet., 157, pp. 82-88Fox, C.L., Modak, S.M., (1974) Antimicrob. Ag. Chemother., 5, pp. 582-588Cavicchioli, M., Massabni, A.C., Heinrich, T.A., Costa-Neto, C.M., Abrão, E.P., Fonseca, B.A.L., Castellano, E.E., Leite, C.Q.F., (2010) J. Inorg. Biochem., 104, pp. 533-540Lalueza, P., Monzón, M., Arruebo, M., Santamaría, J., (2011) Mater. Res. Bull., 46, pp. 2070-2076Clement, J.L., Jarrett, P.S., (1994) Metal Based Drugs, 1, pp. 467-482Silver, S., (2003) FEMS Microbiol. Rev., 27, pp. 341-353Wright, J.B., Lam, K., Burrell, R.E., (1998) Am. J. Infect. Control, 26, pp. 572-577Abbehausen, C., Heinrich, T.A., Abrão, E.P., Costa-Neto, C.M., Lustri, W.R., Formiga, A.L.B., Corbi, P.P., (2011) Polyhedron, 30, pp. 579-583De Paiva, R.E.F., Abbehausen, C., Gomes, A.F., Gozzo, F.C., Lustri, W.R., Formiga, A.L.B., Corbi, P.P., (2012) Polyhedron, 36, pp. 112-119Liu, W., Bensdorf, K., Hagenbach, A., Abram, U., Niu, B., Mariappan, A., Gust, R., (2011) Eur. J. Med. Chem., 46, pp. 5927-5934Mack, D.G., McLeod, R., (1984) Antimicrob. Agents Chemother., 26, pp. 26-30Gottlieb, M.S., Knight, S., Mitsuyasu, R., Weisman, J., Roth, M., Young, L.S., (1984) The Lancet, 324, p. 398399Schürmann, D., Bergmann, F., Albrecht, H., Padberg, J., Grünewald, T., Behnsch, M., Grobush, M., Suttorp, N., (2001) J. Infection, 42, pp. 8-15Schürmann, D., Bergmann, F., Albrecht, H., Padberg, J., Wünsche, T., Grünewald, T., Schürmann, M., Suttorp, N., (2002) Eur. J. Clin. Microbiol. Infect. Dis., 21, pp. 353-361Van Duijkeren, E., Vulto, A.G., Van Miert, A.S.J.P.A.M., (1994) J. Vet. Pharmacol. Therapy, 17, pp. 64-73Mechor, G.D., Jim, G.K., Janzen, E.D., (1988) Can. Vet. J., 29, pp. 438-443Greko, C., Bengtsson, B., Franklin, A., Jacobsson, S.O., Wiese, B., Luthman, J., (2002) J. Vet. Pharmacol. Therapy, 25, pp. 413-423Deshmukh, J.H., Deshpande, M.N., (2011) J. Chem. Pharm. Res., 3, pp. 899-902Ogunniran, K.O., Ajani, O.O., Ehi-Eromosele, C.O., Obaleye, J.A., Adekoya, J.A., Ajanaku, C.O., (2012) Int. J. Phys. Sci., 7, pp. 1998-2005Khade, B.C., Deore, P.M., Arbad, B.R., (2010) Int. J. Chem. Sci., 8, pp. 132-138Masciocchi, N., Moret, M., Cairati, P., Sironi, A., Ardizzia, G.A., La Monica, G., (1995) JCS, Dalton Trans., pp. 1671-1675Masciocchi, N., Sironi, A., (1997) JCS, Dalton Trans., pp. 4643-4650Masciocchi, N., Galli, S., Sironi, A., (2005) Commun. Inorg. Chem., 26, pp. 1-37Amaral, T.C., De Carvalho, G.S.G., Da Silva, A.D., Corbi, P.P., Masciocchi, N., Castellano, E.E., Cuin, A., (2014) J. Coord. Chem., 67, pp. 1380-1391TOPAS-R (Version 3.0). Bruker AXS, Karlswhe, Germany2005Bauer, A.W., Kirby, W.M., Sheris, J.C., Turck, M., (1966) Am. J. Clin. Pathol., 45, pp. 493-496Clinical and Laboratory Standards Institute, (2007) Performance Standards for Antimicrobial Susceptibility Testing, , seventeenth informational supplement: Wayne, PADa Silva, S.A., Leite, C.Q.F., Pavan, F.R., Masciocchi, N., Cuin, A., (2014) Polyhedron, 79, pp. 170-177Keller, E., (1986) Chem. Unserer Zeit, 20, pp. 178-180Cuin, A., Massabni, A.C., Leite, C.Q.F., Sato, D.N., Neves, A., Szpoganicz, B., Silva, M.S., Bortoluzzi, A.J., (2007) J. Inorg. Biochem., 101, pp. 291-296Shefter, E., Chmielewicz, Z.F., Blount, J.F., Brennan, T.F., Sackman, B.F., Sackman, P., (1972) J. Pharm. Sci., 61, pp. 872-877Baeziger, N.C., Struss, A.W., (1976) Inorg. Chem., 15, pp. 1807-1809Kolodziejski, W., Klinowski, J., (2002) Chem. Rev., 102, pp. 613-628Nakamoto, K., (1997) Infrared and Raman Spectra of Inorganic and Coordination Compounds, Part B, , 5th ed. John Wiley & Sons New York p. 102Altoparlak, U., Erol, S., Akcay, M.N., Celebi, F., Kadanali, A., (2004) Burns, 30, pp. 660-664Carvalho, M.A., De Paiva, R.E.F., Bergamini, F.R.G., Gomes, A.F., Gozzo, F.C., Lustri, W.R., Formiga, A.L.B., Corbi, P.P., (2013) J. Mol. Struct., 1031, pp. 125-131Costa, G.S.M., Corbi, P.P., Abbehausen, C., Formiga, A.L.B., Lustri, W.R., Cuin, A., (2012) Polyhedron, 34, pp. 210-21
Biopsychiatry And Bioidentity: Politics Of Subjectivity Nowadays [biopsiquiatria E Bioidentidade: Política Da Subjetividade Contemporânea]
No full textHaving as a start the emergence of the Diagnostic and Statistical Manual of Mental Disorder (DSM-III) in the 80's, mark of transformations in psychiatric clinic, the author aims to analyze the relationship between discourses and practices of the Biological Psychiatry and their effects in production and subjectivity processes. Taking as reference Foucault's theory which states that medicine is a biopolitic strategy, we intended to describe the process of body management and medicalization of health as controlling forms which represent biopower nowadays.203331339(1995) Manual diagnóstico e estatístico de transtornos mentais, , Associação Psiquiátrica Americana, 4aed, Porto Alegre: Artes MédicasBarros, R.B., Passos, E., Clínica e Biopolítica na Experiência do Contemporâneo (2001) Revista de Psicologia Clínica: Pós-Graduação e Pesquisa, 13 (1), pp. 89-99Birman, J., A psicopatologia na pós-modernidade - As alquimias no mal-estar da atualidade (1999) Revista Latinoamericana de Psicopatologia Fundamental, 2 (1), pp. 40-46Clark, A., Fishman, J., Fosket, J., Mamo, L., Shim, J., Technosciences et nouvelle biomédicalization: racines occidentales, rhizomes mondiaux (2000) Sciences Sociales et Santé, 18 (2). , JuinDeleuze, G., Post-scriptum: sobre as sociedades de controle (1992) Conversações, pp. 219-226. , In G. Deleuze, São Paulo: Editora 34Ehrenberg, A., (1998) Lafatigue d'être soi, , Paris: Odile JacobFoucault, M., O sujeito e o poder (1995) Michel Foucault: uma trajetória filosófica -para além do estruturalismo e da hermenêutica, pp. 231-249. , In H. Dreyfus & P. Rabinow (Orgs.), Rio de Janeiro: Forense UniversitáriaFoucault, M., O Nascimento da Medicina Social (1999) Microfísica do poder, pp. 79-98. , In R. Machado (Org.), Rio de Janeiro: GraalFoucault, M., A loucura e a sociedade (1970) Ditos & Escritos I, pp. 259-267. , In M. B. Motta (Org.), Rio de Janeiro: Forense UniversitáriaFoucault, M., (2002) Em defesa da sociedade, , São Paulo: Martins FontesFukuyama, F., (2003) Nosso futuro pós-humano: conseqüências da revolução da biotecnologia, , Rio de Janeiro: RoccoHaraway, D.J., Manifesto ciborgue: ciência, tecnologia e feminismo-socialista no final do século XX (2000) Antropologia do ciborgue: as vertigens do pós-humano, pp. 37-129. , In T. T. Silva (Org.), Belo Horizonte: AutênticaHardt, M., Negri, A., (2004) Império, , Rio de Janeiro: RecordHenning, M.F., Neuroquímica da vida cotidiana (2000) Cadernos do IPUB, 18 (6), pp. 123-132Illich, I., L' obsession de la santé parfaite. Le Monde Diplomatique (1999), http://www.monde-diplomatique.fr/1999/03/ILLICH/11802.html, Mars, Acesso em 28 de novembro, 2004, emLe Breton, D., (1999) Adeus ao corpo: Antropologia e sociedade, , Campinas, SP: PapirusMarinho, A., Intrator, S., Pílulas no cardápio infantil (2004) Revista O Globo, 1 (13), pp. 20-28Ortega, F., Práticas de ascese corporal e constituição de bioidentidades (2003) Cadernos Saúde Coletiva, 11 (1), pp. 59-77Rabinow, P., (2002) Antropologia da razão, , Rio de Janeiro: Relume DumaráRolnik, S., Toxicômanos de identidade: subjetividade em tempo de globalização (1997) Cultura e Subjetividade, pp. 19-34. , In D. Lins (Org.), Campinas, SP: PapirusRusso, J., Venancio, A.T.A., Humanos demasiadamente orgânicos: um estudo comparativo de diferentes versões de um manual psiquiátrico [Resumo] (2003) Reunião de Antropologia do Mercosul, 5, p. 247Serpa Jr., O.D., (1998) Mal-estar na natureza, , Rio de Janeiro: Te Corá EditoraSerpa Jr., O.D., Mente, cérebro e perturbação mental: a natureza da loucura ou a loucura na natureza? (2000) Cadernos do IPUB, 18 (6), pp. 144-157Sfez, L., (1995) A saúde perfeita: crítica de uma nova utopia, , São Paulo: UnimarcoTort, M., (2001) O desejo frio: procriação artificial e crise dos referenciais simbólicos, , Rio de Janeiro: Civilização BrasileiraVirilio, P., Do super-homem ao homem superexcitado (1995) A arte do motor, pp. 89-114. , In P.Virilio (Org.), São Paulo: Estação LiberdadeZarifian, E., (1997) La société du bien-être, , Paris: Jaco
Silver complexes with sulfathiazole and sulfamethoxazole: synthesis, spectroscopic characterization, crystal structure and antibacterial assays
No full textThe present work describes the synthesis and spectroscopic characterization of two silver(I) complexes with the sulfonamides sulfathiazole (AgC9H8N3O2S2, Ag-SFT) and sulfamethoxazole (AgC10H10N3O3S, Ag-SFM). Elemental analyses indicate a 1:1 metal/ligand composition for both complexes. Spectroscopic techniques such as 1H, 15N NMR and IR evidence the coordination of both ligands to silver through the nitrogen atom of the sulfonamide group, and also indicate the participation of the 5-membered N-heterocyclic ring in the coordination. The Ag-SFT crystal structure was solved by X-ray powder diffraction and indicates the formation of a dimeric structure with silver bridging between two ligand molecules. Biological studies showed the antibacterial activity of Ag-SFT and Ag-SFM complexes against Gram-positive and Gram-negative bacterial strains, with MIC values ranging from 3.45 to 6.90 mmol L-1 for the sulfathiazole complex and 1.74 to 13.9 mmol L-1 for the sulfamethoxazole complex. The complexes have shown to be more active against Gram-negative bacterial strains.The present work describes the synthesis and spectroscopic characterization of two silver(I) complexes with the sulfonamides sulfathiazole (AgC9H8N3O2S2, Ag-SFT) and sulfamethoxazole (AgC10H10N3O3S, Ag-SFM). Elemental analyses indicate a 1:1 metal/ligand85437444FAPESP - FUNDAÇÃO DE AMPARO À PESQUISA DO ESTADO DE SÃO PAULOCNPQ - CONSELHO NACIONAL DE DESENVOLVIMENTO CIENTÍFICO E TECNOLÓGICOFAPEMIG - FUNDAÇÃO DE AMPARO À PESQUISA DO ESTADO DE MINAS GERAIS2012/08230-2240094/2012-3CEX-APQ-00525/14Klasen, H.J., (2000) Burns, 26, p. 117Atiyeh, B.S., Costagliola, M., Hayek, S.N., Dibo, S.A., (2007) Burns, 33, p. 139Modak, S.M., Fox, C.L., Jr., (1973) Biochem. Pharmacol., 22, p. 2391Solioz, M., Odermatt, A., (1995) J. Biol. Chem., 270, p. 9217Hindi, K.M., Ditto, A.J., Panzner, M.J., Medvetz, D.A., Han, D.S., Hovis, C.E., Hilliard, J.K., Youngs, W.J., (2009) Biomaterials, 30, p. 3771Greenhalgh, D.G., (2009) Clin. Plast. Surg., 36, p. 597Nomiya, K., Yokoyama, H., (2002) Dalton Trans., p. 2483Eckhardt, S., Brunetto, P.S., Gagnon, J., Priebe, M., Giese, B., Fromm, K.M., (2013) Chem. Rev., 113, p. 4708Kyros, L., Banti, C.N., Kourkoumelis, N., Kubicki, M., Sainis, I., Hadjikakou, S.K., (2014) J. Biol. Inorg. Chem., 19, p. 449Kremer, E., Facchin, G., Estèves, E., Alborés, P., Baran, E.J., Ellena, J., Torre, M.H., (2006) J. Inorg. Biochem., 100, p. 1167Baran, W., Adamek, E., Ziemianska, J., Sobczak, A., (2011) J. Hazard. Mater., 196, p. 1De Paiva, R.E.F., Abbehausen, C., Gomes, A.F., Gozzo, F.C., Lustri, W.R., Formiga, A.L.B., Corbi, P.P., (2012) Polyhedron, 36, p. 112Fox, C.L., Rappole, B.W., Stanford, W., (1969) Surg. Gynecol. Obstet., 128, p. 1021Scholar, E., (2009) XPharm: The Comprehensive Pharmacology Reference, , Elsevier New York p. 1Golzar Hossain, G.M., (2013) J. Saudi Chem. Soc., 17, pp. 253-257Bellú, S., Hure, E., Trapé, M., Trossero, C., Molina, G., Drogo, C., Williams, P.A.M., Rizzotto, M., (2005) Polyhedron, 24, p. 501Henderson, W., McCaffrey, L.J., Dinger, M.B., Nicholson, B.K., (1998) Polyhedron, 17 (18), p. 3137Narang, K.K., Gupta, J.K., (1976) Curr. Sci., 45, p. 744Absar, N., Daneshvar, H., Beall, G., (1994) J. Allergy Clin. Immunol., 93 (6), p. 1001Mondelli, M., Pavan, F., De Souza, P.C., Leite, C.Q., Ellena, J., Nascimento, O.R., Facchin, G., Torre, M.H., (2013) J. Mol. Struct., 1036, p. 180Kesimli, B., Topacli, A., (2001) Spectrochim. Acta, Part A, 57, p. 1031Marques, L.L., De Oliveira, G.M., Lang, E.S., De Campos, M.M.A., Gris, L.R.S., (2007) Inorg. Chem. Commun., 10, p. 1083Clinical and Laboratory Standards Institute (CLSI), Performance Standards for Antimicrobial Susceptibility Testing (2007) 17th Informational Supplement, , Wayne, PA, USAKeller, E., (1986) Chem. Unserer Zeit, 20, p. 178Silva, I.M.P., Profirio, D.M., De Paiva, R.E.F., Lancellotti, M., Formiga, A.L.B., Corbi, P.P., (2013) J. Mol. Struct., 1049, p. 1Cuin, A., Massabni, A.C., Leite, C.Q.F., Sato, D.N., Neves, A., Szpoganicz, B., Silva, M.S., Bortoluzzi, A.J., (2007) J. Inorg. Biochem., 101, p. 291Da Silva, S.A., Leite, C.Q.F., Pavan, F.R., Masciocchi, N., Cuin, A., (2014) Polyhedron, 79, p. 170Drebushchak, T.N., Boldyreva, E.V., Mikhailenko, M.A., (2008) J. Struct. Chem., 49, p. 84Baxter, J.N., Cymerman-Craig, J., Willis, J.B., (1955) J. Chem. Soc., p. 669Goldstein, M., Russell, M.A., Willis, H.A., (1969) Spectrochim. Acta, Part A, 25 (7), p. 1275Vijaya Chamundeeswari, S.P., James Jebaseelan Samuel, E., Sundaraganesan, N., (2014) Spectrochim. Acta, Part A, 118, p. 1Juranic, N., Macura, S., (1994) Inorg. Chim. Acta, 217, p. 213Corbi, P.P., Massabni, A.C., Heinrich, T.A., Costa-Neto, C.M., (2008) J. Coord. Chem., 61, p. 2470Corbi, P.P., Massabni, A.C., (2006) Spectrochim. Acta, Part A, 64, p. 418Abbehausen, C., Castro, J.F., Spera, M.B.M., Heinrich, T.A., Costa-Neto, C.M., Lustri, W.R., Formiga, A.L.B., Corbi, P.P., (2011) Polyhedron, 30, p. 2354Erol, S., Altoparlak, U., Akcay, M.N., Celebi, F., Parlak, M., (2004) Burns, 30, p. 357De Paiva, R.E.F., Abbehausen, C., Bergamini, F.R.G., Thompson, A.L., Alves, D.A., Lancellotti, M., Corbi, P.P., (2014) J. Incl. Phenom. Macrocycl. Chem., 79, p. 225Hamilton-Miller, J.M.T., Shah, S., Smith, C., (1993) Chemotherapy, 39, p. 405This study was supported by grants from FAPESP (Fundação de Amparo à Pesquisa do Estado de São Paulo, proc. no. 2012/08230-2), CNPq (Conselho Nacional de Desenvolvimento Científico e Tecnológico, proc. no. 240094/2012-3) and FAPEMIG (Fundação de Amparo
