1,070 research outputs found
SnO2 encapsulated TiO2 hollow nanofibers as anode material for lithium ion batteries
No full textNanoparticulate SnO2 was encapsulated into TiO2 hollow nanofibers to achieve high energy density and robust electrochemical performance as an anode material for lithium ion batteries. The SnO2 encapsulated TiO2 hollow nanofibers exhibit improved electrochemical performances over the TiO2 hollow nanofibers, including a high discharge capacity of similar to 517 mAh g(-1) and doubled capacity at a 10 C rate. These improvements on electrochemical performances are attributed to favorable mechanics and kinetics associated with lithium.This work was financially supported by the National Research Foundation of Korea through grant no. K20704000003TA050000310, the Global Research Laboratory Program provided by the Korean Ministry of Education, Science and Technology in 2011, the International Cooperation program of the Korea Insitute of Energy Technology Evaluation and Planning (KETEP) grant funded by the Korea government Ministry of Knowledge Economy (No. 2011T100100369) and the World Class University program through the National Research Foundation of Korea funded by the Ministry of Education, Science and Technology (R31-10092)
FIGURE 3 in Rediscovery of Impatiens parvifolia and reinstatement of I. omissa (Balsaminaceae) in India
No full textFIGURE 3. Impatiens omissa: A-B. Inflorescence, C. Lateral sepals, D–E. Lower sepal, F. Dorsal petal, G–H. Lateral united petal, I. Pistil and stamen, J. Fruit, K. Seeds.Published as part of Anirudhan, Anitha Melesuparambil, Mani, Bince, Gnanasekaran, Gunadayalan & Thomas, Sinjumol, 2023, Rediscovery of Impatiens parvifolia and reinstatement of I. omissa (Balsaminaceae) in India, pp. 269-277 in Phytotaxa 589 (3) on page 273, DOI: 10.11646/phytotaxa.589.3.5, http://zenodo.org/record/777699
FIGURE 5 in Rediscovery of Impatiens parvifolia and reinstatement of I. omissa (Balsaminaceae) in India
No full textFIGURE 5. Impatiens parvifolia: A–B. Inflorescence, C. Lateral sepals, D–E. Lower sepal, F. Dorsal petal, G–H. Lateral united petal, I. Pistil and stamen, J. Fruit, K. Seeds.Published as part of Anirudhan, Anitha Melesuparambil, Mani, Bince, Gnanasekaran, Gunadayalan & Thomas, Sinjumol, 2023, Rediscovery of Impatiens parvifolia and reinstatement of I. omissa (Balsaminaceae) in India, pp. 269-277 in Phytotaxa 589 (3) on page 275, DOI: 10.11646/phytotaxa.589.3.5, http://zenodo.org/record/777699
Through Achille Castiglioni’s Eyes: Two Immersive Virtual Experiences
No full textThe experimentations described here concern the virtualization of the Studio Museo Achille Castiglioni, a small museum that hosts important artefacts designed by one of the most famous architects and designers of the 20th century, winner of 7 “Compasso d’oro” awards. The digitization process creates two virtual experiences to enjoy the place and the design objects to give visibility to the small context far from the big museum. The first (less complex and immersive) experimentation deals with the semantic implementation of 360° panoramic photographs, giving rise to a virtual tour of the museum available on the web with no interaction: it is the description of the state of the art of this place. The second one (a real VR simulation) derives from a more complex workflow based on digital surveying, digital modelling, and developing of virtual environments and interactions. The two proposed case studies demonstrate how new technologies can represent indispensable instruments for the safeguard, enhancement, and communication of Cultural Heritage
Tin indium oxide/graphene nanosheet nanocomposite as an anode material for lithium ion batteries with enhanced lithium storage capacity and rate capability
No full textTin oxide (SnO2) is a promising candidate as an anode for lithium ion batteries because of its high theoretical capacity. However, poor capacity retention caused by large volume changes during cycling, large initial irreversible capacity, and low rate capability frustrate its practical application. We have developed a ternary nanocomposite based on tin indium oxide (SnO2-In2O3) and graphene nanosheet (GNS) synthesized via a facile solvothermal method. The incorporation of In2O3 into SnO2 can improve the electrochemical property of SnO2 and reduce the charge transfer resistance of electrode leading to the enhanced reversible capacity and rate capability. The graphene nanosheet in the composite electrode can accommodate high volume expansion/contraction during cycling resulting in excellent capacity retention. As an anode for lithium ion batteries, the SnO2-In2O3/GNS nanocomposite exhibits a remarkably improved electrochemical performance in terms of lithium storage capacity (962 mAh g(-1) at 60 mA g(-1) rate), initial coulombic efficiency (57.2%), cycling stability (60.8% capacity retention after 50 cycles), and rate capability (393.25 mAh g(-1) at 600 mA g(-1) rate after 25 cycles) compared to SnO2/GNS and pure SnO2-In2O3 electrode. (C) 2012 Elsevier Ltd. All rights reserved.This work Was financially supported by the National Research Foundation of Korea through grant no. K2070400000307A050000310, the Global Research Laboratory Program provided by the Korean Ministry of Education, Science and Technology in 2012, the International Cooperation program of the Korea Institute of Energy Technology Evaluation and Planning (KETEP) grant funded by the Korea government Ministry of Knowledge Economy (No. 2011T100100369) and the World Class University program through the National Research Foundation of Korea funded by the Ministry of Education, Science and Technology (R31-10092)
VARIABILITY AND INFLUENCE OF ACID-BASE BALANCE IN PATIENTS WITH RENAL DYSFUNCTION
No full textMinnu Anna Chacko*, Akshatha G., Anitha Vani M. and K. A. Sridha
Nanocapsules with stimuli-responsive moieties for controlled release employing light and enzymatic triggers
No full textThe development of stimuli-responsive nanomaterials, that possess tailored functional properties for the release of specific compounds, is of particular interest. To this extent, controlling the release of molecules at the desired target is an important parameter to regulate chemical and/or biological reactions at a more profound level in a wide variety of applications. In the present work, we report on the development of dual-responsive thiourethane-urethane nanocapsules synthesizedviaan interfacial polymerization reaction executed at the droplet interface using the inverse miniemulsion technique. Evidenceviamorphological and controlled release investigations indicate that our nanocapsules are able to encapsulate hydrophilic compounds with high efficiency in their aqueous core and allow for its selective release upon exposure to UV light and the enzyme esterase. Moreover, we demonstrate the efficient encapsulation of the fragrance molecule geranyl acetate and the anticancer drug doxorubicin. For the latter, we demonstrate its apoptotic effect after being released in MCF 7 breast cancer cells. Overall, these nanocapsules can be used for a wide variety of applications where a selective release of the payload is desired.S. S. is an SB PhD Fellow at the FWO (Research Foundation Flanders). S. K. P. acknowledges BOF funding from Hasselt University. This work is supported by Hasselt University and the Research Foundation Flanders (FWO Vlaanderen; Hercules project AUHL/15/2 - GOH3816N). The authors are thankful to Prof. M. Van Bael for access to the DLS device.Pramanik, SK; Ethirajan, A (corresponding author), Hasselt Univ, Inst Mat Res IMO, Wetenschapspk 1 & Agoralaan D, B-3590 Diepenbeek, Belgium; IMEC, Associated Lab IMOMEC, Wetenschapspk 1, B-3590 Diepenbeek, Belgium;
CSIR Cent Salt & Marine Chem Res Inst, Bhavnagar 364002, Gujarat, India.
[email protected]; [email protected]
(g*p)**- CLOSED SETS IN TOPOLOGICAL SPACES
No full textIn this paper, we have introduced a new class of sets called (g*p)**-closed sets which is properly placed in between the class of closed sets and the class of (g*p)**-closed sets. As an application, we introduce three new spaces namely, gT**p,T**p and T**p-spaces. We have also introduced (g*p)**-continuous and (g*p)**-irresolute maps and their properties are investigated
PEGylating poly(p-phenylene vinylene)-based bioimaging nanoprobes
No full textHypothesis: Conjugated polymer nanoparticles (CNPs) have attracted considerable attention within bioimaging due to their excellent optical properties and biocompatibility. However, unspecific adsorption of proteins hampers their effective use as advanced bioimaging probes. Controlled methodologies made possible tailor-made functional poly(p-phenylene vinylene), enabling one-pot synthesis of CNPs containing functional surface groups. Hence, it should be feasible to PEGylate these CNPs to tune the uptake by cell lines representative for the brain without imparting their optical properties. Experiments: CNPs consisting of the statistical copolymer 2-(50-methoxycarbonylpentyloxy)-5-methoxy-1,4-phenylenevinylene and poly(2-methoxy-5-(30,70-dimethoxyoctyloxy)-1,4-phenylenevinylene) were fabricated by miniemulsion solvent evaporation technique. Surface carboxylic acid groups were used to covalently attach amine-terminated polyethylene glycol (PEG) of different molecular weights. We investigated the effect of grafting CNPs with PEG chains on their intrinsic optical properties, protein adsorption behavior and uptake by representative brain cell lines. Findings: PEGylation did not affect the optical properties and biocompatibility of our CNPs. Moreover, a significant decrease in protein corona formation and unspecific uptake in central nervous system cell lines, depending on PEG chain length, was observed. This is the first report indicating that PEGylation does not affect the CNPs role as excellent bioimaging tools and can be adapted to tune biological interactions with brain cells. (C) 2020 Elsevier Inc. All rights reserved.Support for confocal microscopy was given by Prof. dr. Marcel Ameloot and Dr. Hannelore Bove. Cells were kindly provided by Prof. dr. Annelies Bronckaers, Dr. Jo Mailleux and dra. Jasmine Vanmol. Technical support was given by Huguette Penxten, Christel Bocken and Erik Royackers. Dr. Neomy Zaquen is acknowledged for the synthesis of the conjugated polymers. MP is grateful for funding from the IWT (Agentschap voor Innovatie door Wetenschap en Technologie). SS is an SB PhD Fellow at the Research Foundation Flanders (FWO). The work was funded by the Belgian Charcot Foundation. TJ is grateful for funding from the FWO in the form of an Odysseus grant. This work was supported by Hasselt University and the Research Foundation Flanders (FWO Vlaanderen; Hercules project AUHL/15/2 -GOH3816N). Additional support from BELSPO in the form of the interuniversity attraction pole (IAP) program P7/05: Functional Supramolecular Systems is kindly acknowledged. We further acknowledge the Hercules Foundation for the project (LC-MS@UHasselt: Linear Trap QuadrupoleOrbitrap mass spectrometer.Ethirajan, A (corresponding author), Hasselt Univ, Inst Mat Res, Wetenschapspk 1, B-3590 Diepenbeek, Belgium.
[email protected]
Drawing the Line: How African, Caribbean and White British Women Live Out Psychologically Abusive Experiences
No full textThe final, definitive version of this paper has been published in Violence Against Women, 19 (9):1104-32, Sept 2013 by SAGE Publications Ltd, All rights reserved. © The Author(s) 2013.
The online version of this article can be found at: http://vaw.sagepub.com/content/19/9/110
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