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Crystallization-Driven Self-Assembly of Block Copolymers with a Short Crystallizable Core-Forming Segment: Controlling Micelle Morphology through the Influence of Molar Mass and Solvent Selectivity

Ming-Siao Hsiao、Siti Fairus M. Yusoff、Mitchell A. Winnik 等 4 位作者2014-03-21Macromolecules

Three well-defined asymmetric crystalline-coil poly(ferrocenyldimethylsilane- block -2-vinylpyridine) (PFS- b -P2VP) diblock copolymers (PFS 44 - b -P2VP 264, PFS 75 - b -P2VP 454, and PFS 102 - b -P2VP 625 ) with similar block ratios ( r = N P2VP / N PFS = ca. 6.0 ± 0.1) but different overall molar masses ( M n = 38…

Advanced Polymer Synthesis and CharacterizationPolymer Surface Interaction StudiesBlock Copolymer Self-Assembly

Intramyocardial transplantation of cardiac telocytes decreases myocardial infarction and improves post‐infarcted cardiac function in rats

Baoyin Zhao、Zhaofu Liao、Shang Chen 等 11 位作者2014-03-21Journal of Cellular and Molecular Medicine

The midterm effects of cardiac telocytes (CTs) transplantation on myocardial infarction (MI) and the cellular mechanisms involved in the beneficial effects of CTs transplantation are not understood. In the present study, we have revealed that transplantation of CTs was able to significantly decrease the infarct size a…

Mesenchymal stem cell researchElectrospun Nanofibers in Biomedical ApplicationsTissue Engineering and Regenerative Medicine

Mechanism of Enhanced Carbon Cathode Performance by Nitrogen Doping in Lithium–Sulfur Battery: An X-ray Absorption Spectroscopic Study

Pengyu Zhu、Jiangxuan Song、Dongping Lv 等 8 位作者2014-03-21The Journal of Physical Chemistry C

Lithium–sulfur batteries have drawn much attention in advanced energy storage development due to their high theoretical specific capacity; however, several obstacles hinder their applications, including rapid capacity loss due to dissolution of polysulfide into the electrolyte. Nitrogen-doped mesoporous carbon cathode…

Advancements in Battery MaterialsSupercapacitor Materials and FabricationAdvanced Battery Materials and Technologies

Construction and Evaluation of Fe3O4-Based PLGA Nanoparticles Carrying rtPA Used in the Detection of Thrombosis and in Targeted Thrombolysis

Jun Zhou、Dajing Guo、Yu Zhang 等 6 位作者2014-03-21ACS Applied Materials & Interfaces

Thrombotic disease is extremely harmful to human health, but early detection and treatment can help improve prognoses and reduce mortality. To date, few studies have used MR molecular imaging in the early detection of thrombi and in the dynamic monitoring of the thrombolytic efficiency. In this article, we construct F…

Nanoparticle-Based Drug DeliveryProtease and Inhibitor MechanismsElectrospun Nanofibers in Biomedical Applications

Coupled Folding and Binding of the Disordered Protein PUMA Does Not Require Particular Residual Structure

Joseph M. Rogers、Chi T. Wong、Jane Clarke2014-03-21Journal of the American Chemical Society

Many cellular proteins are 'disordered' in isolation. A subset of these intrinsically disordered proteins (IDPs) can, upon binding another molecule, fold to a well-defined three-dimensional structure. In the structurally heterogeneous, unbound ensemble of these IDPs, conformations are likely to exist that, in part, re…

Protein Structure and DynamicsMass Spectrometry Techniques and ApplicationsEnzyme Structure and Function

Band Structure Tuning of TiO 2 for Enhanced Photoelectrochemical Water Splitting

Jiajun Wang、Haifeng Sun、Jing Huang 等 5 位作者2014-03-21The Journal of Physical Chemistry C

Doping with anion and cation impurities is an effective approach to tune the photoelectrochemical properties of TiO 2 . Here, we explore the Rh monodoping and (Rh + F) codoping effect on electronic structures and photocatalytic activities of anatase TiO 2 by performing extensive density functional theory calculations.…

Advanced Photocatalysis TechniquesQuantum Dots Synthesis And PropertiesCopper-based nanomaterials and applications

TiO2 Nanoparticles Induced Hippocampal Neuroinflammation in Mice

Yuguan Ze、Lei Sheng、Xiaoyang Zhao 等 13 位作者2014-03-21PLoS ONE

Titanium dioxide nanoparticles (TiO2 NPs) have been used in various medical and industrial areas. However, the impacts of these nanoparticles on neuroinflammation in the brain are poorly understood. In this study, mice were exposed to 2.5, 5, or 10 mg/kg body weight TiO2 NPs for 90 consecutive days, and the TLRs/TNF-α…

Neuroinflammation and Neurodegeneration MechanismsAdvanced Nanomaterials in CatalysisAnesthesia and Neurotoxicity Research

Atom-Level Understanding of the Sodiation Process in Silicon Anode Material

Sung Chul Jung、Dae Soo Jung、Jang Wook Choi 等 4 位作者2014-03-21The Journal of Physical Chemistry Letters

Despite the exceptionally large capacities in Li ion batteries, Si has been considered inappropriate for applications in Na ion batteries. We report an atomic-level study on the applicability of a Si anode in Na ion batteries using ab initio molecular dynamics simulations. While crystalline Si is not suitable for allo…

Advancements in Battery MaterialsSemiconductor materials and devicesElectron and X-Ray Spectroscopy Techniques

Molecular Understanding of the Chemical Stability of Organic Materials for OLEDs: A Comparative Study on Sulfonyl, Phosphine-Oxide, and Carbonyl-Containing Host Materials

Na Lin、Juan Qiao、Lian Duan 等 5 位作者2014-03-21The Journal of Physical Chemistry C

Chemical stability of organic materials on service toward excitons and charge carriers is intrinsically associated with the operational stability and economics of state-of-the-art organic light-emitting devices. Here we conducted comprehensive experiments and theoretical calculations to comparatively investigate the i…

Organic Electronics and PhotovoltaicsOrganic Light-Emitting Diodes ResearchConducting polymers and applications

Comparative metabolism of cellulose, sophorose and glucose in Trichoderma reeseiusing high-throughput genomic and proteomic analyses

Lílian dos Santos Castro、Wellington Ramos Pedersoli、Amanda Cristina Campos Antoniêto 等 12 位作者2014-03-21Biotechnology for Biofuels

BACKGROUND: The filamentous fungus Trichoderma reesei is a major producer of lignocellulolytic enzymes utilized by bioethanol industries. However, to achieve low cost second generation bioethanol production on an industrial scale an efficient mix of hydrolytic enzymes is required for the deconstruction of plant biomas…

Biofuel production and bioconversionAdvanced Cellulose Research StudiesPolysaccharides and Plant Cell Walls

Morphology Controlled Synthesis of SnS2 Nanomaterial for Promoting Photocatalytic Reduction of Aqueous Cr(VI) under Visible Light

Chanchal Mondal、Mainak Ganguly、Jaya Pal 等 6 位作者2014-03-21Langmuir

A mild, template free protocol has been demonstrated for SnS2 nanoflake formation at the gram level from SnCl2 and thioacetamide (TAA). The SnS2 nanoflakes congregate to nanoflowers and nanoyarns with variable TAA concentrations. BET measurements reveal that the synthesized nanomaterials are highly porous having very…

Advanced Photocatalysis TechniquesCopper-based nanomaterials and applicationsAdvanced Nanomaterials in Catalysis

Theoretical Study of Plasmon-Enhanced Surface Catalytic Coupling Reactions of Aromatic Amines and Nitro Compounds

Liu‐Bin Zhao、Meng Zhang、Yifan Huang 等 7 位作者2014-03-21The Journal of Physical Chemistry Letters

Taking advantage of the unique capacity of surface plasmon resonance, plasmon-enhanced heterogeneous catalysis has recently come into focus as a promising technique for high performance light-energy conversion. This work performs a theoretical study on the reaction mechanism for conversions of p-aminothiophenol (PATP)…

Advanced Photocatalysis TechniquesGold and Silver Nanoparticles Synthesis and ApplicationsNanomaterials for catalytic reactions

Temperature-dependent solvation modulates the dimensions of disordered proteins

René Wuttke、Hagen Hofmann、Daniel Nettels 等 7 位作者2014-03-21Proceedings of the National Academy of Sciences

For disordered proteins, the dimensions of the chain are an important property that is sensitive to environmental conditions. We have used single-molecule Förster resonance energy transfer to probe the temperature-induced chain collapse of five unfolded or intrinsically disordered proteins. Because this behavior is se…

Protein Structure and DynamicsMass Spectrometry Techniques and ApplicationsEnzyme Structure and Function

A Highly Selective and Instantaneous Nanoprobe for Detection and Imaging of Ascorbic Acid in Living Cells and in Vivo

Na Li、Yanhua Li、Yaoyao Han 等 6 位作者2014-03-21Analytical Chemistry

The development of a specific reaction of nanomaterials and reactive species is of fundamental importance for the determination of biomolecules. Here we report a novel nanoprobe for detection and imaging of ascorbic acid (AA) in living cells and in vivo based on the specific reaction of cobalt oxyhydroxide (CoOOH) and…

Electrochemical sensors and biosensorsMolecular Sensors and Ion DetectionCarbon and Quantum Dots Applications

New Cellulose–Lysine Schiff-Base-Based Sensor–Adsorbent for Mercury Ions

Sapana Kumari、Ghanshyam S. Chauhan2014-03-21ACS Applied Materials & Interfaces

Mercury is a highly toxic environmental pollutant; thus, there is an urgent need to develop new materials for its simultaneous detection and removal from water. In the present study, new oxidized cellulose-based materials, including their Schiff bases, were synthesized and investigated as a sensor-adsorbent for simple…

Electrochemical sensors and biosensorsMolecular Sensors and Ion DetectionSupramolecular Self-Assembly in Materials

A Bismuth Vanadate–Cuprous Oxide Tandem Cell for Overall Solar Water Splitting

Pauline Bornoz、Fatwa F. Abdi、S. David Tilley 等 7 位作者2014-03-21The Journal of Physical Chemistry C

Through examination of the optoelectronic and photoelectrochemical properties of BiVO 4 and Cu 2 O photoelectrodes, we evaluate the feasibility of a BiVO 4 /Cu 2 O photoanode/photocathode tandem cell for overall unassisted solar water splitting. Using state-of-the-art photoelectrodes we identify current-matching condi…

Advanced Photocatalysis TechniquesCopper-based nanomaterials and applicationsElectronic and Structural Properties of Oxides

A Star‐Shaped Perylene Diimide Electron Acceptor for High‐Performance Organic Solar Cells

Yuze Lin、Yifan Wang、Jiayu Wang 等 7 位作者2014-03-21Advanced Materials

A novel nonplanar star-shaped perylene diimide acceptor with a triphenylamine core (S(TPA-PDI)) is explored and applied in solution-processed organic solar cells. These solar cells exhibit an encouraging power conversion efficiency of up to 3.32%.

Organic Electronics and PhotovoltaicsPerovskite Materials and ApplicationsConducting polymers and applications

High Methane Storage Capacity in Aluminum Metal–Organic Frameworks

Felipe Gándara、Hiroyasu Furukawa、Seung-Kyu Lee 等 4 位作者2014-03-21Journal of the American Chemical Society

The use of porous materials to store natural gas in vehicles requires large amounts of methane per unit of volume. Here we report the synthesis, crystal structure and methane adsorption properties of two new aluminum metal-organic frameworks, MOF-519 and MOF-520. Both materials exhibit permanent porosity and high meth…

Metal-Organic Frameworks: Synthesis and ApplicationsEnhanced Oil Recovery TechniquesCovalent Organic Framework Applications

Yolk–Satellite–Shell Structured Ni–Yolk@Ni@SiO 2 Nanocomposite: Superb Catalyst toward Methane CO 2 Reforming Reaction

Ziwei Li、Liuye Mo、Yasotha Kathiraser 等 4 位作者2014-03-21ACS Catalysis

The CO 2 (dry) reforming of methane (DRM) reaction is an environmentally benign process to convert two major greenhouse gases into synthesis gas for chemical and fuel production. A great challenge for this process involves developing catalysts with high carbon resistance abilities. Herein we synthesize, for the first…

Catalytic Processes in Materials ScienceCatalysts for Methane ReformingCatalysis and Oxidation Reactions

Organometal Halide Perovskite Solar Cell Materials Rationalized: Ultrafast Charge Generation, High and Microsecond-Long Balanced Mobilities, and Slow Recombination

Carlito S. Ponseca、Tom J. Savenije、Mohamed Abdellah 等 12 位作者2014-03-21Journal of the American Chemical Society

Organometal halide perovskite-based solar cells have recently been reported to be highly efficient, giving an overall power conversion efficiency of up to 15%. However, much of the fundamental photophysical properties underlying this performance has remained unknown. Here, we apply photoluminescence, transient absorpt…

Perovskite Materials and ApplicationsChalcogenide Semiconductor Thin FilmsConducting polymers and applications