A5100423688- Magnesium Alloys: Properties and Applications
- Aluminum Alloys Composites Properties
- Aluminum Alloy Microstructure Properties
- Metal and Thin Film Mechanics
- Force Microscopy Techniques and Applications
- Cellular Mechanics and Interactions
- Quantum Dots Synthesis And Properties
- Microstructure and mechanical properties
- Electrospun Nanofibers in Biomedical Applications
- Gold and Silver Nanoparticles Synthesis and Applications
- Molecular Junctions and Nanostructures
- Advanced Welding Techniques Analysis
- Near-Field Optical Microscopy
- Chalcogenide Semiconductor Thin Films
- biodegradable polymer synthesis and properties
- Polymer Surface Interaction Studies
- Cell Adhesion Molecules Research
- Tissue Engineering and Regenerative Medicine
- Hydrogen Storage and Materials
- Monetary Policy and Economic Impact
- Advanced biosensing and bioanalysis techniques
- Global Financial Crisis and Policies
- Electrochemical Analysis and Applications
- Mechanical and Optical Resonators
- Cellular transport and secretion
Sun Yat-sen University
2022-2025
Nanjing Agricultural University
2021-2025
Third Affiliated Hospital of Sun Yat-sen University
2022-2025
Xiamen University
2005-2024
Shenyang University of Technology
2012-2024
Wuhan University
2018-2024
Federal Reserve Bank of San Francisco
2008-2024
Hunan Normal University
2024
Hunan Provincial People's Hospital
2024
Fudan University
2004-2024
Colloidal semiconductor–metal nanoheterostructures that combine the light-harvesting ability of semiconductor nanocrystals with catalytic activity small metal nanoparticles show promising applications for photocatalysis, including light-driven H2 production. The exciton in domain can be quenched by electron-, hole-, and energy transfer to particle, competition between these processes determines photocatalytic efficiency materials. Using ultrafast transient absorption spectroscopy, we that,...
Significance T cells protect the body against pathogens and cancer by recognizing specific foreign peptides on cell surface. Because antigen recognition occurs at junction between a migrating an antigen-presenting (APC), it is likely that cellular forces are generated transmitted through T-cell receptor (TCR)-ligand bonds. Here we develop DNA-based nanoparticle tension sensor producing first molecular maps of TCR-ligand during activation. We find TCR orchestrated in space time, requiring...
The conductance of single-molecule junctions may be governed by the structure molecule in gap or way it bonds with leads, and information contained a Raman spectrum is ideal for examining both. Here we demonstrate that molecule-to-surface bonding characterized during electron transport 'fishing-mode' tip-enhanced spectroscopy (FM-TERS). This technique allows mutually verifiable signals contributions to acquired simultaneously at room temperature. Density functional theory calculations reveal...
We report the design of two collagen-mimetic peptide sequences, NSI and NSII, that self-assemble into structurally defined nanoscale sheets. The underlying structure these nanosheets can be understood in terms layered packing collagen triple helices dimensions. These nanosheet assemblies represent a novel morphology for collagen-based materials, which, on basis their structure, may envisioned as potentially biocompatible platforms controlled presentation chemical functionality at nanoscale....
Herein we aimed to understand how nanoscale clustering of RGD ligands alters the mechano-regulation their integrin receptors. We combined molecular tension fluorescence microscopy with block copolymer micelle nanolithography fabricate substrates arrays precisely spaced probes that can generate a 10-fold response pN-forces. found mechanism sensing ligand spacing is force-mediated. This strategy broadly applicable investigating receptor and its role in mechanotransduction pathways.
Colloidal one-dimensional semiconductor nanoheterostructures have emerged as an important family of functional materials for solar energy conversion, although the nature long-lived exciton state and their formation dissociation dynamics remain poorly understood. In this paper we study these in CdSe/CdS dot-in-rod (DIR) NRs, a representative 1D heterostructures, DIR-electron-acceptor complexes by transient absorption spectroscopy. Because quasi-type II band alignment CdSe CdS, it is often...
Recent studies of group II-VI colloidal semiconductor heterostuctures, such as CdSe/CdS core/shell quantum dots (QDs) or dot-in-rod nanorods, show that type II and quasi-type band alignment can facilitate electron transfer slow down charge recombination in QD-molecular acceptor complexes. To explore the general applicability this wave function engineering approach for controlling properties, we investigate exciton relaxation dissociation dynamics InP (a III-V semiconductor) InP/CdS...
Poly‑l‑lactic acid (PLLA) is a promising bone repair material because of its good biocompatibility and natural degradability. Nevertheless, the poor mechanical properties local inflammatory response limits further application in repair. In this research, nano magnesium oxide (nMgO) was incorporated into PLLA scaffold manufactured by selective laser sintering technique. Results shown that nMgO with affinity to could act as nucleating agent during crystallization process effectively enhance...
The dynamic compression experiments with Split-Hopkinson Pressure Bar(SHPB) were performed on AZ31 magnesium alloy rolled sheet specimens in the normal direction (AZ31-ND) {0002} texture at temperature of 293–523 K and strain rate 0.001–2200 s−1. term Johnson-Cook(JC) constitutive model had been reasonably modified. This advantage made promising for decribing deformation behavior AZ31-ND more accurately. obtained true stress-true plastic curves agreed well measured results a wide range rates...
A tip-enhanced Raman instrument was set up based on a homemade optical fiber head, dispersive spectrograph, and scanning tunneling microscope (STM) system. Electrochemical preparation of spectroscopy (TERS) Au tips refined by using the etching current as ending point control, resulting in success rate high 90%. The quality allow recording STM images with molecular resolution TERS spectra nonresonant surface species single-crystal surface.
The development of responsive small molecular hydrogels that can be applied for recovery cells postculture attract extensive interests researchers in fields cell biology, stem differentiation, and tissue engineering. We report this study several based on adamantane–peptides whose gel to clear solution phase transition achieved by addition β-cyclodextrin (β-CD) derivatives. are formed our recently developed method disulfide bond cleavage glutathione (GSH). Mouse fibroblast 3T3 attach grow...
Tumor recurrence is a critical conundrum in the postoperative therapy, on account of severe bleeding with disseminated tumor cells, residual and rich nutrient oxygen supply transported to tumors by abundant blood vessels. Biodegradable drug-loaded implants, inserted resection cavity right away upon surgery, possess prevention efficient chemotherapeutic capabilities, considered be promising strategy efficiently inhibit solid tumor. Here, we developed sandwich-like composite consisting...