Changhua Li

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Shiyong Liu9
Fabrizio Sebastiani6
N P Suedkamp6
R G Checketts5
J L Sher5
9Shiyong Liu
4Jinming Hu
3Xiang Zhang
2Na Ye
2Hao Liu

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Publication Year

2002
2016

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Co-author

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Polymeric assemblies and nanoparticles with stimuli-responsive fluorescence emission characteristics.
Fluorescent polymeric assemblies and nanoparticles (NPs) of nanoscale dimensions have become a focus of intensive investigations during the past few decades due to combined advantages such as improved biocompatibility, water dispersibility, stimuli-responsiveness, facile integration into optical detection devices, and the ability of further… (More)
A general strategy to construct fluorogenic probes from charge-generation polymers (CGPs) and AIE-active fluorogens through triggered complexation.
Trip the light of plastic: An aqueous fluorogenic sensing system consisting of selective and specific analyte-triggerable charge-generation polymers (CGPs) and a negatively charged aggregation-induced emission active fluorogen (TPE-COOH(4)) is presented. In the presence of a triggering analyte of interest, the CGPs undergo electrostatic complexation with… (More)
pH-responsive supramolecular self-assembly of well-defined zwitterionic ABC miktoarm star terpolymers.
We report the first example of the synthesis and pH-responsive supramolecular self-assembly of double hydrophilic ABC miktoarm star terpolymers. Well-defined ABC miktoarm star terpolymers consisting of poly(ethylene glycol), poly(tert-butyl methacrylate), and poly(2-(diethylamino)ethyl methacrylate) arms [PEG(-b-PtBMA)-b-PDEA] were synthesized via the… (More)
Reversible three-state switching of multicolor fluorescence emission by multiple stimuli modulated FRET processes within thermoresponsive polymeric micelles.
Experimental Section Materials. N-Isopropylacrylamide (NIPAM, 97%, Tokyo Kasei Kagyo Co.) was purified by recrystallization from a mixture of benzene and n-hexane (1/3, v/v). Styrene (St, 99.5%, Beijing Chemical Factory) was successively washed with aqueous NaOH (5.0 wt %) and water, then distilled over CaH 2 at reduced pressure.… (More)
Hg2+-reactive double hydrophilic block copolymer assemblies as novel multifunctional fluorescent probes with improved performance.
We report on novel type of responsive double hydrophilic block copolymer (DHBC)-based multifunctional chemosensors to Hg(2+) ions, pH, and temperatures and investigate the effects of thermo-induced micellization on the detection sensitivity. Well-defined DHBCs bearing rhodamine B-based Hg(2+)-reactive moieties (RhBHA) in the thermo-responsive block,… (More)
FRET-derived ratiometric fluorescent K+ sensors fabricated from thermoresponsive poly(N-isopropylacrylamide) microgels labeled with crown ether moieties.
We report on the fabrication of ratiometric fluorescent K(+) sensors based on thermoresponsive poly(N-isopropylacrylamide) (PNIPAM) microgels covalently incorporated with K(+)-recognizing 4-acrylamidobenzo-18-crown-6 residues (B18C6Am), fluorescence resonance energy transfer (FRET) donor dyes, 4-(2-acryloyloxyethylamino)-7-nitro-2,1,3-benzoxadiazole… (More)
Synthesis and Aggregation Behavior of Multi-Responsive Double Hydrophilic ABC Miktoarm Star Terpolymer.
We report the first example of the synthesis and the "schizophrenic" micellization behavior of a multi-responsive double hydrophilic ABC miktoarm star terpolymer. A well-defined miktoarm star terpolymer consisting of poly(ethylene glycol), poly(2-(diethylamino)ethyl methacrylate), and poly(N-isopropylacrylamide) arms, PEG(-b-PDEA)-b-PNIPAM, was synthesized… (More)
Rough Sets and Confidence Attribute Bagging for Chinese Architectural Document Categorization
— Aiming at the problems of the traditional feature selection methods that threshold filtering loses a lot of effective architectural information and the shortcoming of Bagging algorithm that weaker classifiers of Bagging have the same weights to improve the performance of Chinese architectural document categorization, a new algorithm based on Rough set and… (More)
The System of Collaborative Urban Planning and Desigen Based on 3d-gis and Vr
Based on Geography Information System and Virtual Reality technology, a new system of collaborative urban planning and design is established by publishing the future urban developing and planning information in the urban government Website. With the help of the plug-ins supplied by the system, the citizens concerning with public affairs can interact easily… (More)
Concrete CT Image Segmentation Using Modified Metropolis Dynamics
—In this paper, we present a pseudo-stochastic variation of the Metropolis dynamics for combinatorial optimization in concrete CT image classification using Markov Random Fields. The method is a modified version of the Metropolis (MMD) algorithm: at each iteration, the new state is chosen randomly, but the decision to accept it is purely deterministic. This… (More)