A5103534562- Polymer Surface Interaction Studies
- Quantum Dots Synthesis And Properties
- Molecular Junctions and Nanostructures
- Luminescence and Fluorescent Materials
- Advanced Polymer Synthesis and Characterization
- Conducting polymers and applications
- Organic Electronics and Photovoltaics
- Organic Light-Emitting Diodes Research
- biodegradable polymer synthesis and properties
- Chalcogenide Semiconductor Thin Films
- Organoselenium and organotellurium chemistry
- Gold and Silver Nanoparticles Synthesis and Applications
- Dendrimers and Hyperbranched Polymers
- Electrospun Nanofibers in Biomedical Applications
- Surface Modification and Superhydrophobicity
- Synthesis and properties of polymers
- Block Copolymer Self-Assembly
- Nonlinear Optical Materials Research
- Protein Interaction Studies and Fluorescence Analysis
- Force Microscopy Techniques and Applications
- Bone Tissue Engineering Materials
- Photochemistry and Electron Transfer Studies
- Electrophoretic Deposition in Materials Science
- Advanced Photocatalysis Techniques
- Sulfur Compounds in Biology
LinkedIn (United States)
2024
Jilin University
2003-2023
State Key Laboratory of Supramolecular Structure and Materials
2009-2023
East China Normal University
2013-2016
Zhejiang University
2000-2009
Ministry of Education of the People's Republic of China
2006-2009
Heidelberg University
2008
University of Hong Kong
2005
Peking University
2005
Hong Kong University of Science and Technology
2005
Abstract Antibacterial multilayer films containing nanosilver were prepared via layer‐by‐layer fashion. PET film was aminolyzed with 1,6‐hexanediamine to introduce amino groups on surface; chitosan–silver nitrate complex and heparin alternately deposited onto an surface, subsequently, the silver ions within reduced ascorbic acid form nanoparticles. UV–visible spectroscopy transmission electron microscopy confirmed formation of well‐dispersed particles sizes (10–40 nm) that depended initial...
Abstract Nanosized near infrared (NIR) responsive nanohybrids are synthesized by surface‐initiated atom transfer radical polymerization (SI‐ATRP) of N ‐isopropylacrylamide (NIPAAm) on gold nanorods (Au NRs). Transmission electron microscopy images demonstrate that the have a clear core/shell structure. Temperature‐variable 1 H NMR spectroscopy, quasi‐elastic light scattering (QELS), UV‐vis and laser irradiation prove both temperature NIR responsive. Norvancomycin (NVan) loading release...
Water-soluble species can be deposited into preformed, multilayered polyelectrolyte capsules, templated onto melamine formaldehyde particles, with high integrity. Efficient encapsulation of albumin within capsules formed from a poly(styrene sulfonate)/poly(allylamine hydrochloride) composite was achieved at pH values below the isoelctric point protein through spontaneous deposition (see picture).
By reaction of poly(L-lactic acid) (PLLA) membrane with 1,6-hexanediamine, free amino groups were introduced onto a PLLA surface, through which biocompatible macromolecules such as gelatin, chitosan, or collagen covalently immobilized by employing glutaraldehyde coupling agent. The existence on the aminolyzed surface was verified quantitatively ninhydrin analysis method, revealed that NH2 density increased 1,6-hexanediamine concentration aminolyzing time. Scanning force microscopy...
We report a direct method to amplify the exponential growth of multilayers significantly by alternating deposition polyethylenimine (PEI) at high pH and poly(acrylic acid) (PAA) low pH. The switches degree ionization polyelectrolytes in multilayers, which enhances diffusion PEI into out film hence increases deposited mass per cycle. synergetic action pH-tunable charge density diffusivity weak provides new for enhanced with hierarchal micro- nanostructured surfaces.
ZnS nanocrystals have been synthesized in polymer matrices. Absorption spectrum and small-angle X-ray scattering studies showed that the size of nanoparticles wasca. 3.0 nm. Electron diffraction results hexagonal structure. A nanoparticle/polymer composite as an emitter was used to fabricate a single layer structure electroluminescent device with low turn-on voltage (≤4 V) blue electroluminescence observed at room temperature.
The fabrication of polymer/Cu2S nanoparticle hybrid films is described, in which metal–ligand interactions are used to self-organize Cu2+-neutralized polyelectrolytes and pyridine-containing polymers into alternately deposited multilayers, as illustrated the Figure, where circles represent copper salt polygons pyridine moiety.
Efficient white emission from the mixing of yellow Re-complexes, (4,4′-dimethyl-2,2′-bipyridine)Re(CO)3Cl (Dmbpy-Re), and blue N,N′-di-1-naphthyl-N, N′-diphenylbenzidine (NPB) is reported. NPB used as hole-transporting layer. 2,9-dimethyl-4,7-diphenyl-1,10-phenanthroline exciton-blocking well electron-transporting Dmbpy-Re doped into host material (4,4′-N-N′-dicarbazole)biphenyl (CBP). The chromaticity can be tuned by adjusting thickness Dmbpy-Re:CBP layer or concentration in CBP. maximum...
Preparation methods for TiO2/PbS "coupled" type nanoparticles are described, in which PbS is formed in-situ on the surface of TiO2. FTIR was used to follow preparation process and UV−vis spectra confirmed stabilizing effect TiO2 formation nanoparticles. This nanoparticle further assembled into ultrathin composite films based electrostatic interaction as driving force. Various methods, including UV−vis, IR, EDS, TEM, AFM, XPS, identified coexistence two kinds films. Photocurrent measurements...
Highly efficient electrophosphorescence from light-emitting devices based on two types of rhenium(I) diimine complexes, (1,10-phenanthroline)Re(CO)3Cl (phen-Re) and (2,9-dimethyl-1,10-phenanthroline)Re(CO)3Cl (dmphen-Re), is reported. N, N′-di-1-naphthyl-N, N′-diphenylbenzidine used as the hole-transporting layer. 2,9-dimethyl-4,7-diphenyl-1,10-phenanthroline to confine excitons within luminescence zone. phen-Re dmphen-Re are doped into host material (4,4′-N-N′-dicarbazole)biphenyl with mass...
A new kind of PbS nanoparticles/polymer composite is synthesized whose microstructure observed under TEM proves that the nanoparticles are well dispersed and even in size; electron diffraction results identify to be cubic rock salt structure, particle size can varied from 4 11 nm.
Abstract Multilayer microcapsules were fabricated by layer-by-layer (LbL) assembly of natural polysaccharides onto CaCO3 particles, following with core removal. The micron-sized particles synthesized reaction between Ca(NO3)2 and Na2CO3 solutions in the existence carboxylmethyl cellulose (CMC). incorporated amount CMC was found to be 5.3 wt% thermogravimetric analysis. Two biocompatible polysaccharides, chitosan sodium alginate alternately deposited CaCO3(CMC) templates obtain hollow...
Superhydrophobic surfaces with high reflectivity might provide a promising self-cleaning approach in wide variety of optical applications ranging from traffic to solar energy industries. However, the contradiction between hierarchical micronanostructure and is challenge for superhydrophobic materials reflectivity. Here we report facile method fabricate silver film as that polished silicon by carefully controlling seed-induced mirror reaction.
E. Hao, B. Yang, J. Zhang, X. Sun and Shen, Mater. Chem., 1998, 8, 1327 DOI: 10.1039/A802655F
MD films are adopted as matrices for the assembly of Pbl2 nanoparticles into a layer structure; UV–VIS and X-ray diffraction results prove that multilayers formed have well-defined structure.
To elucidate the relationships between molecular recognition and catalytic ability, we chose three assay systems using different thiol substrates, glutathione (GSH), 3-carboxyl-4-nitrobenzenethiol (CNBSH), 4-nitrobenzenethiol (NBSH), to investigate peroxidase (GPx) activities of 2,2'-ditellurobis(2-deoxy-beta-cyclodextrin) (2-TeCD) in presence a variety structurally distinct hydroperoxides (ROOH), H2O2, tert-butyl peroxide (tBuOOH), cumene (CuOOH), as oxidative reagent. A comparative study...