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Dicyanovinyl-functionalized fluorescent hyperbranched conjugated polymer nanoparticles for sensitive naked-eye cyanide ion detection
A selective and sensitive fluorescent nanoprobe based on hyperbranched conjugated polymer nanoparticles (HBCPN-DCV) for cyanide detection was developed. HBCPN-DCV was readily prepared by Suzuki coupling polymerization in a mini-emulsion, followed by post-functionalization of numerous terminal aldehyde groups into cyanide-responsive dicyanovinyl fluorophores on the particle surface. An&nb...
http://www.polymer.cn//ss/tong_hui/publicationsshow_8369.html |
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Intramolecular charge-transfer emission from conjugated polymer nanoparticles: the terminal group effect on electronic and optical properties
Tuning fluorescence properties and frontier orbital energy levels of hyperbranched conjugated polymer nanoparticles (HCPN-NMe) by the facile introduction of terminal N,N-dimethylaniline groups via an intramolecular charge transfer (ICT) process between the nanoparticle core and the terminal groups was demonstrated for the first time. Compared with the similar hyperbranched conjugated pol...
http://www.polymer.cn//ss/tong_hui/publicationsshow_8368.html |
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Nano Letters 2003: Simple Method to Isolate Single Polymer Chains for the Direct Measurement of the Desorption Force
We propose a simple method to isolate polymer chains individually at the quartz surface by utilizing the defects in the self-assembled monolayers of organosilane. This method allows us to measure the desorption force of a single polyelectrolyte chain from a substrate directly.
http://www.polymer.cn//ss/cuishuxun/publicationsshow_8344.html |
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Temperature dependence of creep and recovery behaviours of polymer composites filled with chemically reduced graphene oxide
Resistance to time-dependent plastic deformation of polymer composite materials is a crucial require-
ment in their application for long-term durability and reliability. Herein, creep and recovery behaviors
of polystyrene (PS) composites filled with various loadings of chemically reduced graphene oxide (CRGO)
were investigated at different environment temperatures. As expected, incor...
http://www.polymer.cn//ss/tanglongcheng/publicationsshow_8303.html |
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Extracellular Electron Transfer across Bacterial Cell Membranes via a Cytocompatible Redox-Active Polymer
A redox-active phospholipid polymer with a phospholipidmimicking structure (2-methacryloyloxyethyl phosphorylcholine; MPC) was synthesized to construct a biocompatible electron mediator between bacteria and an electrode. In this study, a copolymer of MPC and vinylferrocene [VF; poly(MPC-co-VF)] (PMF) is synthesized. When PMF is added to cultures of the bacterial spe...
http://www.polymer.cn//ss/xiaojielin/publicationsshow_8281.html |
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The effect of the encapsulation of bacteria in redox phospholipid polymer hydrogels on electron transfer efficiency in living cell-based devices
Development of living cell-based devices holds great promise in many biomedical and industrial applications. To increase our understanding of the process, we investigated the biological and electrochemical properties of a redox phospholipid polymer hydrogel containing an electron-generating bacteria (Shewanella oneidensis MR-1). A water-soluble and amphiphilic phospholipid polymer...
http://www.polymer.cn//ss/xiaojielin/publicationsshow_8280.html |
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Amphibious polymer-functionalized CdTe quantum dots: synthesis, thermoresponsive self-assembly, and photoluminescent properties
A straightforward strategy is presented to functionalize aqueous-phase synthesized CdTe quantum dots (QDs) with thermo-sensitive poly(2-(dimethylamino) ethyl methacrylate) (PDMAEMA) via direct surface-initiated oxyanionic vinyl polymerization. The polymer grafting quantity can be facilely controlled in a wide range up to 95.2wt% by adjusting the weight feed ratio of monomer to pristine QDs. The po...
http://www.polymer.cn//ss/zhouli/publicationsshow_8263.html |
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Simultaneous photoluminescence import and mechanical enhancement of polymer films using silica-hybridized quantum dots
Quantum dot (QD)-polymer nanocomposites that simultaneously possess stable photoluminescence and enhanced mechanical properties are presented for the first time based on the facile blending of the ultrasmall silica-hybridized CdTe QDs (SiO(2)-h-QDs) or 3-(trimethoxysilyl) propyl methacrylate-modified SiO(2)-h-QDs (SiO(2)-h-QD-MSMAs) with polymer. Typically, for SiO(2)-h-QD-MSMA/poly(methyl methacr...
http://www.polymer.cn//ss/zhouli/publicationsshow_8257.html |
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Facile synthesis of stable and water-dispersible multi-hydroxy conjugated polymer nanoparticles with tunable size by dendritic crosslinking
A new strategy has been developed to synthesize, conjugated polymer (CP) nanoparticles (CPNs) with numerous surface hydroxyl groups via click chemistry between: a;CP and hyperbranched polyglycerol (HPG), in miniemulsion. Laser light scattering and TEM characterizations indicate that the synthesized CPNs have spherical shapes with uniform sizes tunable in the. range of 40-210 nm simply by adjusting...
http://www.polymer.cn//ss/zhouli/publicationsshow_8248.html |
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One-step synthesis of versatile amine- and vinyl-capped magnetic iron oxide nanoparticles for polymer grafting, dye adsorption and catalysis
Magnetic iron oxide nanoparticles (MIONs) bearing amine and vinyl groups are fabricated straightforwardly using vinyl-based tertiary amine molecules as both alkaline source and ligands based on the coprecipitation of iron ions in aqueous solution. The as-prepared MIONs present amphiphilic performance that can be well-dispersed both in aqueous solution and common organic solvents (e.g., ethanol, di...
http://www.polymer.cn//ss/zhouli/publicationsshow_8246.html |
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