Weitai Wu

ORCID: 0000-0003-3344-8883
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About
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Research Areas
  • Hydrogels: synthesis, properties, applications
  • Nanomaterials for catalytic reactions
  • Electrochemical sensors and biosensors
  • Nanoparticle-Based Drug Delivery
  • Gold and Silver Nanoparticles Synthesis and Applications
  • Supramolecular Self-Assembly in Materials
  • Conducting polymers and applications
  • Graphene and Nanomaterials Applications
  • Crystallization and Solubility Studies
  • X-ray Diffraction in Crystallography
  • Advanced Polymer Synthesis and Characterization
  • Advanced Photocatalysis Techniques
  • Covalent Organic Framework Applications
  • Copper-based nanomaterials and applications
  • Quantum Dots Synthesis And Properties
  • Advanced Sensor and Energy Harvesting Materials
  • Nanocluster Synthesis and Applications
  • Advanced biosensing and bioanalysis techniques
  • Pancreatic function and diabetes
  • Luminescence and Fluorescent Materials
  • Nanoplatforms for cancer theranostics
  • Adsorption and biosorption for pollutant removal
  • Analytical Chemistry and Sensors
  • ZnO doping and properties
  • Curcumin's Biomedical Applications

Xiamen University
2015-2024

Collaborative Innovation Center of Chemistry for Energy Materials
2016-2024

Ningxia University
2021-2024

Southwest University
2023

Government College University, Faisalabad
2018

State Council of the People's Republic of China
2018

Xiamen University of Technology
2016

College of Staten Island
2009-2013

City University of New York
2009-2013

The Graduate Center, CUNY
2009-2013

Optical detection of glucose, high drug loading capacity, and self-regulated delivery are simultaneously possible using a multifunctional hybrid nanogel particle under rational design in colloid chemistry method. Such nanogels made Ag nanoparticle (NP) cores covered by copolymer gel shell poly(4-vinylphenylboronic acid-co-2-(dimethylamino)ethyl acrylate) [p(VPBA-DMAEA)]. The introduction the glucose sensitive p(VPBA-DMAEA) onto NPs makes polymer-bound responsive to glucose. While small sized...

10.1021/nn1008319 article EN ACS Nano 2010-07-12

Multifunctional nanoparticles that can provide long circulation and specific accumulation, illuminate the targeted object, intelligently dose pathological zones will enable major advancements in diagnosis therapy. To facilitate a simultaneous tumor-cell imaging adequate local delivery to tumor site, we develop core−shell structured hybrid nanogels (40−80 nm) composed of Ag nanoparticle (NP) as core smart gel poly(N-isopropylacrylamide-co-acrylic acid) shell. The pH-induced shrinkage nanogel...

10.1021/cm903357q article EN Chemistry of Materials 2010-02-12

Effective, if dotty: Quantum-dot (QD) emission was modulated through the reversible covalent bonding of glucose to boronic acids on surface QDs (see picture). The highly selective ratiometric probe sensitive in physiologically important concentration range 0.4–20.0 mM and used determine amount within living cells. Detailed facts importance specialist readers are published as "Supporting Information". Such documents peer-reviewed, but not copy-edited or typeset. They made available submitted...

10.1002/anie.201001508 article EN Angewandte Chemie International Edition 2010-07-28

Pyrolyzed Fe/N/C, a promising nonprecious-metal catalyst for oxygen reduction reaction (ORR), usually relies on abundant micropores, which can host large amount of active sites. However, microporous structure suffers from severe water flooding to break the triple-phase interface where ORR occurs, especially in direct methanol fuel cell (DMFC) fed with liquid fuel. Current studies about fabrication are mainly limited Pt/C layer, mesopores and macropores concerned. Here, we successfully...

10.1021/acsenergylett.7b00071 article EN ACS Energy Letters 2017-02-13

In this study, poly(N-isopropylmethacrylamide-co-methacrylic acid) microgels prepared by free radical precipitation polymerization were used as micro-reactors for the synthesis and stabilization of silver nanoparticles. UV-Visible spectroscopy, Transmission Electron Microscopy Fourier-transform infrared spectroscopy to characterize both pure hybrid microgels. The catalytic reduction 4-nitroaniline was carried out in presence test their activity, catalysis mechanism explored varying...

10.1080/09593330.2018.1435737 article EN Environmental Technology 2018-01-31

Polymer microgels containing a polystyrene core and poly(N-isopropylmethacrylamide) shell were synthesized in aqueous media following free radical precipitation polymerization. Au nanoparticles fabricated into the region of core-shell denoted as P(STY@NIPM) by situ reduction chloroauric acid with sodium borohydride. Various characterization techniques such transmission electron microscopy (TEM), ultraviolet-visible spectroscopy (UV-visible) Fourier transform infrared (FTIR) used for...

10.1039/d1ra09380k article EN cc-by-nc RSC Advances 2022-01-01

Reversible fluorescence quenching and anti-quenching of CdS quantum dots immobilized in boronic acid-based microgels can be used for the optical detection glucose.

10.1039/b907348e article EN Chemical Communications 2009-01-01

Abstract Polystyrene‐poly(N‐isopropylmethacrylamide‐acrylic acid) [pSty‐p(NIpmam‐AC)] core shell microgels loaded with silver nanoparticles (NPs) as a recyclable catalyst for rapid reduction of Congo Red (CR) dye in aqueous medium is reported the first time. Catalytic activity Ag‐pSty‐p(NIpmam‐AC) composite measured by adopting CR benchmark reaction. Restriction Ag NPs single layered p(NIpmam‐AC) enhances diffusion reactants to access NPs, surface during reaction respect previously and...

10.1002/macp.201800211 article EN Macromolecular Chemistry and Physics 2018-08-22

We report here fluorescent pH-sensitive hybrid materials based on the in situ immobilization of Ag and Ag/Au bimetallic nanoparticles (NPs) interior multiple sensitive copolymer microgels poly(N-isopropylacrylamide-co-acrylic acid-co-acrylamide) with polyacrylamide fragments serving as stabilizing ligands. Temperatures corresponding to swollen, partially nearly collapsed states template were respectively applied for loading chemical reduction Ag+ ions control size distribution NPs microgels....

10.1021/cm900635u article EN Chemistry of Materials 2009-05-18

Abstract Under a rational design, combining multiple constituents into single nano‐object will not only bridge the unique properties of individual materials to leverage research both fundamentally and practically, but also improve conventional sensing, imaging, therapeutic efficacies. Such (<100 nm) can be constructed by covalently bonding ZnO quantum dots (QDs) nonlinear poly(ethylene glycol)‐based nanogel network chains, followed appropriate growth metallic Au. With polymer gel serving...

10.1002/adfm.201100201 article EN Advanced Functional Materials 2011-05-31

Hybrid micro-/nanogels are playing an increasing important part in a diverse range of applications, due to their tunable dimensions, large surface area, stable interior network structure, and very short response time. We review recent advances challenges the developments hybrid toward applications for optical sensing pH, temperature, glucose, ions, other species as well intracellular imaging. Due unique advantages, probes attracting substantial interests continuous monitoring chemical...

10.3402/nano.v1i0.5730 article EN cc-by-nc Nano Reviews 2010-01-01
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