Showing posts with label November 17. Show all posts
Showing posts with label November 17. Show all posts

Tuesday, November 17, 2015

pH-Dependent Selective Protein Adsorption into Mesoporous Silica

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The Journal of Physical Chemistry C
DOI: 10.1021/acs.jpcc.5b09606

Sebastian T. Moerz and Patrick Huber
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Electrochemical Reduction of Carbon Dioxide to Ethane Using Nanostructured Cu2O-Derived Copper Catalyst and Palladium(II) Chloride

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The Journal of Physical Chemistry C
DOI: 10.1021/acs.jpcc.5b09144

Chung Shou Chen, Jane Hui Wan and Boon Siang Yeo
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Optically Active Chiral DNA–Silica Hybrid Free-Standing Films

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Chemistry of Materials
DOI: 10.1021/acs.chemmater.5b02647

Yuanyuan Cao and Shunai Che
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Rapid Electron Beam Writing of Topologically Complex 3D Nanostructures Using Liquid Phase Precursor

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Nano Letters
DOI: 10.1021/acs.nanolett.5b04225

Jeffrey S. Fisher, Peter A. Kottke, Songkil Kim and Andrei G. Fedorov
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First-Principles Calculation of Quantum Capacitance of Codoped Graphenes as Supercapacitor Electrodes

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The Journal of Physical Chemistry C
DOI: 10.1021/acs.jpcc.5b07943

Morteza Mousavi-Khoshdel, Ehsan Targholi and Mohammad J. Momeni
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Small-Size Effects on Electron Transfer in P3HT/InP Quantum Dots

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The Journal of Physical Chemistry C
DOI: 10.1021/acs.jpcc.5b09397

Jun Yin, Manoj Kumar, Qiong Lei, Lin Ma, Sai Santosh Kumar Raavi, Gagik G. Gurzadyan and Cesare Soci
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Energy Alignment of Frontier Orbitals and Suppression of Charge Recombinations in P3HT/SWNT

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The Journal of Physical Chemistry C
DOI: 10.1021/acs.jpcc.5b06876

Katsuhiko Nishimra, Mikiya Fujii, Ryota Jono and Koichi Yamashita
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Effect of Silica Surface Properties on the Formation of Multilayer or Submonolayer Protein Hard Corona: Albumin Adsorption on Pyrolytic and Colloidal SiO2 Nanoparticles

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The Journal of Physical Chemistry C
DOI: 10.1021/acs.jpcc.5b07764

Federico Catalano, Gabriele Alberto, Pavlo Ivanchenko, Galyna Dovbeshko and Gianmario Martra
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Demonstration of Hole Transport and Voltage Equilibration in Self-Assembled π-Conjugated Peptide Nanostructures Using Field-Effect Transistor Architectures

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ACS Nano
DOI: 10.1021/acsnano.5b05752

Kalpana Besar, Herdeline Ann M. Ardoña, John D. Tovar and Howard E. Katz
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Time-Resolved Emission Reveals Ensemble of Emissive States as the Origin of Multicolor Fluorescence in Carbon Dots

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Nano Letters
DOI: 10.1021/acs.nanolett.5b03915

Syamantak Khan, Abhishek Gupta, Navneet C. Verma and Chayan K. Nandi
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Nanomesh-Type Graphene Superlattice on Au(111) Substrate

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Nano Letters
DOI: 10.1021/acs.nanolett.5b03886

Péter Süle, Márton Szendrő, Gábor Zsolt Magda, Chanyong Hwang and Levente Tapasztó
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Self-Assembly and Visualization of Poly(3-hexyl-thiophene) Chain Alignment along Boron Nitride Nanotubes

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The Journal of Physical Chemistry C
DOI: 10.1021/acs.jpcc.5b09049

Yadienka Martinez-Rubi, Zygmunt J. Jakubek, Michael B. Jakubinek, Keun Su Kim, Fuyong Cheng, Martin Couillard, Christopher Kingston and Benoit Simard
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Catalytic Mechanism of H2 Activation by a Carbenoid Aluminum Complex

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The Journal of Physical Chemistry C
DOI: 10.1021/acs.jpcc.5b08957

Nery Villegas-Escobar, Soledad Gutiérrez-Oliva and Alejandro Toro-Labbé
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Computational Study on the Intramolecular Charge Separation of D-A-π-A Organic Sensitizers with Different Linker Groups

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The Journal of Physical Chemistry C
DOI: 10.1021/acs.jpcc.5b09117

Jing Yang, Xingzhu Wang, Wai-Leung Yim and Qing Wang
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Synthesis, characterization and biocompatibility of cadmium sulfide nanoparticles capped with dextrin for in vivo and in vitro imaging application

Background: The safe use in biomedicine of semiconductor nanoparticles, also known as quantum dots (QDs), requires a detailed understanding of the biocompatibility and toxicity of QDs in human beings. The biological characteristics and physicochemical properties of QDs entail new challenges regarding the management of potential adverse health effects following exposure. At certain concentrations, the synthesis of semiconductor nanoparticles of CdS using dextrin as capping agent, at certain concentration, to reduce their toxicity and improves their biocompatibility. Results: This study successfully synthesized and characterized biocompatible dextrin-coated cadmium sulfide nanoparticles (CdS-Dx/QDs). The results show that CdS-Dx/QDs are cytotoxic at high concentrations (>2 μg/mL) in HepG2 and HEK293 cells. At low concentrations (<1 μg/mL), CdS-Dx/QDs were not toxic to HepG2 or HeLa cells. CdS-Dx nanoparticles only induced cell death by apoptosis in HEK293 cells at 1 μg/mL concentrations. The in vitro results showed that the cells efficiently took up the CdS-Dx/QDs and this resulted in strong fluorescence. The subcellular localization of CdS-Dx/QDs were usually small and apparently unique in the cytoplasm in HeLa cells but, in the case of HEK293 cells it were more abundant and found in cytoplasm and the nucleus. Animals treated with 100 μg/kg of CdS-Dx/QDs and sacrificed at 3, 7 and 18 h showed a differential distribution in their organs. Intense fluorescence was detected in lung and kidney, with moderate fluorescence detected in liver, spleen and brain. The biocompatibility and toxicity of CdS-Dx/QDs in animals treated daily with 100 μg/kg for 1 week showed the highest level of fluorescence in kidney, liver and brain. Less fluorescence was detected in lung and spleen. There was also evident presence of fluorescence in testis. The histopathological and biochemical analyses showed that CdS-Dx/QDs were non-toxic for rodents. Conclusions: The in vitro and in vivo studies confirmed the effective cellular uptake and even distribution pattern of CdS-Dx/QDs in tissues. CdS-Dx/QDs were biocompatible with tissues from rodents. The CdS-Dx/QDs used in this study can be potentially used in bio-imaging applications.
Jorge Reyes-Esparza
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Examining Hydroxyl–Alumina Bonding toward Aluminum Nanoparticle Reactivity

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The Journal of Physical Chemistry C
DOI: 10.1021/acs.jpcc.5b08408

Richa Padhye, Jena McCollum, Carol Korzeniewski and Michelle L. Pantoya
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Electronic Structure of Core–Shell Metal/Oxide Aluminum Nanoparticles

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The Journal of Physical Chemistry C
DOI: 10.1021/acs.jpcc.5b07678

Giulia Maidecchi, Chinh Vu Duc, Renato Buzio, Andrea Gerbi, Gianluca Gemme, Maurizio Canepa and Francesco Bisio
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Pulsed Laser Deposition of PdCuAu Alloy Membranes for Hydrogen Absorption Study

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The Journal of Physical Chemistry C
DOI: 10.1021/acs.jpcc.5b07511

J. Galipaud, M. H. Martin, L. Roué and D. Guay
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