12 research outputs found
Tailoring the physical properties of 2D materials
No full textVyladění vlastností materiálů vede k novým poznatkům v oblasti základní vědy a otevírá cestu k tomu, aby byly materiály připraveny k použití. Grafen a další vznikající třídy 2D materiálů nabízejí řadu nových fyzikálních a chemických vlastností. Další ladění vlastností těchto materiálů zlepší jejich vnitřní vlastnosti a také pomůže objasnit nové fyzikálně-chemické jevy. Existuje mnoho metod, jak ladit vlastnosti 2D materiálů; deformační inženýrství patří k těm nejslibnějším vzhledem k jedinečným mechanickým vlastnostem 2D materiálů a jejich citlivosti i na ty nejmenší poruchy. Proto se tato práce zaměřuje na využití technik deformačního inženýrství k ladění vlastností 2D materiálů. Dále se tato práce snaží zabývat vývojem technik přípravy vzorků 2D materiálů, souvisejícími aplikacemi a vlivem dvouosé deformace na přizpůsobení jejich elektronické struktury, rozptylu fononů, dynamiky excitace, jako je excitonový trychtýř a další.Tuning the material properties leads to new findings in fundamental science and paves the way to making the materials ready for applications. Graphene and other emerging 2D material classes offer a variety of new physical and chemical properties. Further tuning properties of these materials will improve the intrinsic properties and also help to elucidate the new physico-chemical phenomena. Many methods exist to tune the 2D materials properties; strain engineering belongs to the most promising ones due to 2D materials unique mechanical properties and their sensitive nature to even the smallest perturbations. Therefore, the focus of this thesis is on adopting the strain engineering techniques to tune the properties of the 2D materials. Furthermore, this thesis tries to address the development of the 2D material sample preparation techniques, related applications, and the effect of biaxial strain to tailor their electronic structures, phonon scattering, excitation dynamics such as exciton funneling and others.
Tailoring the physical properties of 2D materials
No full textVyladění vlastností materiálů vede k novým poznatkům v oblasti základní vědy a otevírá cestu k tomu, aby byly materiály připraveny k použití. Grafen a další vznikající třídy 2D materiálů nabízejí řadu nových fyzikálních a chemických vlastností. Další ladění vlastností těchto materiálů zlepší jejich vnitřní vlastnosti a také pomůže objasnit nové fyzikálně-chemické jevy. Existuje mnoho metod, jak ladit vlastnosti 2D materiálů; deformační inženýrství patří k těm nejslibnějším vzhledem k jedinečným mechanickým vlastnostem 2D materiálů a jejich citlivosti i na ty nejmenší poruchy. Proto se tato práce zaměřuje na využití technik deformačního inženýrství k ladění vlastností 2D materiálů. Dále se tato práce snaží zabývat vývojem technik přípravy vzorků 2D materiálů, souvisejícími aplikacemi a vlivem dvouosé deformace na přizpůsobení jejich elektronické struktury, rozptylu fononů, dynamiky excitace, jako je excitonový trychtýř a další
WITHDRAWN: Scrupulous recongnisation of biologically important acids by Fluorescent “turn off-on” mechanism of thaicalix reduced silver nanoparticles
No full textThis article has been withdrawn at the request of the author(s) and/or editor. The Publisher apologizes for any inconvenience this may cause.The full Elsevier Policy on Article Withdrawal can be found at http://www.elsevier.com/locate/withdrawalpolicy
A switch-off fluorescence probe towards Pb(II) and cu(II) ions based on a calix[4]pyrrole bearing amino-quinoline group
No full textReconnoitering the dynamics-calix[4]pyrrole: A heights in research and technology
No full textCalix[4]pyrrole has potential applications as a molecular recognition receptor, sensor, ditopic cation, and anion receptor. Other supramolecular receptors could be made using novel approaches inspired by the mechanism and selectivity of these receptors. We believe that this brief summary will act as a catalyst for growth in the potential applications of calix[4]pyrrole in research and technology. The simple functionalizing group and ring modification of calix[4]pyrrole make it an excellent choice for multi-component identification. The mode of action of the calix[4]pyrrole receptor and an explanation of its selectivity could inspire the development of other supramolecular receptors
Calix[4]pyrrole virtuous sensor: a selective and sensitive recognition for Pb(II) ions by spectroscopic and computational study
No full textA novel supramolecular sensor derived from calix[4]pyrrole system i.e. calix[4]pyrrole bearing aminoanthraquinone derivative (CAAQ) have been designed and synthesized. The complexation behavior of metal cations [Ag(I), Ba(II), Ca(II), Ni(II), Co(II), Fe(III), Hg(II), Cu(II), Cr(II), Pb(II), Zn(II), (1 × 10−4 M)] with CAAQ (1 × 10−6 M) was studied by spectrophotometry and spectrofluorometry. Metal ion like Pb(II) produces red shift in absorption spectra and quenching in emission spectra likelihood of strong complexation of Pb(II) ions with CAAQ. Fluorescence cell imaging also supports the complexation of Pb(II) ions with CAAQ. The binding constants, quantum yield, stoichiometry of complex, mechanism of quenching by Stern–Volmer equation and Density functional theory calculation have been determined.</p
Supplemental Tables and References for, “The Royal Canadian Mounted Police (RCMP) Study: Protocol for a Prospective Investigation of Mental Health Risk and Resilience Factors”
No full textThe current link provides access to the supplemental materials described in the publication.The Royal Canadian Mounted Police (RCMP), like all public safety personnel (PSP), are frequently exposed to potentially psychologically traumatic events that contribute to posttraumatic stress injuries (PTSIs). Addressing PTSI is impeded by the limited available research. In this protocol paper, we describe the RCMP Study, part of the concerted efforts by the RCMP to reduce PTSI by improving access to evidence-based assessments, treatments and training, as well as participant recruitment and RCMP Study developments to date.
The RCMP Study has been designed to (1) develop, deploy and assess the impact of a system for ongoing annual, monthly and daily evidence-based assessments; (2) evaluate associations between demographic variables and PTSI; (3) longitudinally assess individual differences associated with PTSI; (4) augment the RCMP Cadet Training Program with skills to proactively mitigate PTSI; and (5) assess the impact of the augmented training condition (ATC) versus the standard training condition (STC). Participants in the STC (n = 480) and ATC (n = 480) are assessed before and after training and annually for 5 years on their deployment date; they also complete brief monthly and daily surveys.
The RCMP Study results are expected to benefit the mental health of all participants, RCMP and PSP by reducing PTSI among all who serve.The current study was supported by the RCMP, the Government of Canada, and the Ministry of Public Safety and Emergency Preparedness. Special thanks to the following people (alphabetically by last name) who have provided tremendous support for the current study in several different ways since inception: RCMP and Government Leaders - William Sterling Blair, Jasmin Breton, Sylvie Châteauvert, Daniel Dubeau, Ralph Edward Goodale, Louise Lafrance, Brenda Lucki, Sylvie Bourassa Muise, Robert Paulson, Stephen White; Academics - Kelly J. Abrams, Billea Ahlgrim, Katie Andrews, Myles Ferguson, Jennifer Gordon, Chet Hembroff, Bridget Klest, Jolan Nisbet, Laurie Sykes-Tottenham, Kristi Wright; University of Regina executive, administrative, and technical team members - Olabisi Adesina, Seerat Bassi, Chris Beckett, Brad Berezowski, Jonathan Burry, Murray Daku, Krysten Forbes, Jolene Goulden, Sally Gray, Kadie Hozempa, Xiaoqian Huang, Maria Kamil, Anita Kohl, Donna King, Jordan MacNeil, David Malloy, Akiff Maredia, Kathy McNutt, Megan Milani, Sara Moradizadeh, Sajid Naseem, Obimma Onuegbu, Abimbola Ogunkoyode, Steve Palmer, Cynthia Sanders, Mikhail Shchukin, Shubham Sharma, Vianne Timmons, Preeti Tyagi, Abinyah Walker, Keyur Variya, Christopher Yost, Zhe Zhang; Clinical staff and supervised clinicians - Andreanne Angehrn, Michael Edmunds, Amelie Fournier, Lis Hansen, Stephanie Korol, Caeleigh Landry, Katherine Mazenc, Michelle Paluszek, Vanessa Peynenburg, Lloyd Robertson, Robyn Shields, Joelle Soucy, Emilie Thomas, Vivian Tran.
Author Funding Declaration(s). L. M. Lix is supported by a Tier I Canada Research Chair in Methods for Electronic Health Data Quality. T. O. Afifi is supported by a Tier I Canada Research Chair in Childhood Adversity and Resilience. S. H. Stewart’s is supported by a Tier 1 Canada Research Chair in Addictions and Mental Health. Facultyye
