A5113822497- Advanced biosensing and bioanalysis techniques
- Gold and Silver Nanoparticles Synthesis and Applications
- Carbon and Quantum Dots Applications
- Luminescence and Fluorescent Materials
- Nanocluster Synthesis and Applications
- Molecular Sensors and Ion Detection
- Analytical chemistry methods development
- Advanced Nanomaterials in Catalysis
- Biosensors and Analytical Detection
- Spectroscopy Techniques in Biomedical and Chemical Research
- MXene and MAX Phase Materials
- Electrocatalysts for Energy Conversion
- Solid-state spectroscopy and crystallography
- RNA Interference and Gene Delivery
- Oil and Gas Production Techniques
- Chalcogenide Semiconductor Thin Films
- Perovskite Materials and Applications
- Electrochemical sensors and biosensors
- Sulfur Compounds in Biology
- Supercapacitor Materials and Fabrication
- Drilling and Well Engineering
- Microfluidic and Capillary Electrophoresis Applications
- Graphene and Nanomaterials Applications
- Telomeres, Telomerase, and Senescence
- 2D Materials and Applications
West Anhui University
2019-2024
Anhui University
2023
Institute of Intelligent Machines
2010-2019
Chinese Academy of Sciences
2009-2019
Lu'an First People's Hospital
2019
State Council of the People's Republic of China
2019
Daqing Oilfield General Hospital
2015-2019
University of Science and Technology of China
2009-2018
State Key Laboratory of Transducer Technology
2015-2018
Hefei University
2015-2018
To detect trace trinitrotoluene (TNT) explosives deposited on various surfaces instantly and on-site still remains a challenge for homeland security needs against terrorism. This work demonstrates new concept its utility visual detection of TNT particulates package materials. The takes advantages the superior fluorescent properties quantum dots (QDs) signal output via ratiometric fluorescence, feasibility surface grafting QDs chemical recognition TNT, ease operation fingerprint lifting...
Here, we report the shell thickness-dependent Raman enhancement of silver-coated gold nanoparticles (Au@Ag NPs) for identification and detection pesticide residues at various fruit peels. The Au@Ag NPs to a large family sulfur-containing pesticides is ~2 orders magnitude stronger than those bare Au Ag NPs, there strong dependence on thickness. It has been shown first time that huge contributed by individual rather aggregated with "hot spots" among neighboring NPs. Therefore, excellent...
Fluorescent probes are powerful tools for the investigations of reactive oxygen species (ROS) in living organisms by visualization and imaging. However, multiparallel assays several ROS with multiple often limited available number spectrally nonoverlapping chromophores together large invasive effects discrepant biological locations. Meanwhile, spontaneous profilings various organs/tissues also penetration capability across different barriers stability vivo environments. Here, we report a...
Abstract The dynamics of DNA and RNA structures in live cells are important for understanding cell behaviors, such as transcription activity, protein expression, apoptosis, hereditary disease, but challenging to monitor organisms real time. difficulty is largely due the lack photostable imaging probes that can distinguish between RNA, more importantly, capable crossing multiple membrane barriers ranging from cell/organelle tissue/organ level. We report discovery a cationic carbon quantum dot...
Chemical nerve agents are highly toxic organophosphorus compounds that easy to obtain and can be utilized by terrorists threaten homeland security human safety. Those contain nucleophilic ability react with acetylcholinesterase leading muscular paralysis death. Therefore, there is great importance explore a reliable simple method detect chemical agents. Herein, the o-phenylenediamine-linked dansyl chloride as colorimetric fluorescent probe has been prepared specific agent stimulants in...
The chemical sensing for the convenient detection of mercuric ion (II) (Hg(2+)) have been widely explored with use various materials and techniques. It still remains a challenge to achieve ultrasensitive but simple, rapid, inexpensive metal ions. Here we report surface-enhanced Raman scattering (SERS) chip femtomolar (fM) Hg(2+) by employing silver-coated gold nanoparticles (Au@Ag NPs) together an organic ligand. 4,4'-Dipyridyl (Dpy) can control aggregation Au@Ag NPs via its dual interacting...
A combinational logic gate based on fluorescent graphene oxide has been reported to discriminate Fe3+, Fe2+ and their mixture in living cells by fluorescence imaging.
An electronic nose can detect highly volatile chemicals in foods, drugs, and environments, but it is still very much a challenge to the odors from crystalline compounds (e.g., solid explosives) with low vapor pressure using present chemosensing techniques such way as dog's olfactory system do. Here, we inkjet printed silver nanoparticles (AgNPs) on cellulose paper established Raman spectroscopic approach of explosive trinitrotoluene (TNT) crystals residues open environment. The...
To convert the binding events on molecularly imprinted polymers (MIPs) into physically detectable signals and to extract templates completely are great challenges in developing MIP-based sensors. In this paper, a core-shell nanostructure was employed constructing MIP chemosensor for improvements of template extraction efficiency sites accessibility. Vinyl-substituted zinc(II) protoporphyrin (ZnPP) used as both fluorescent reporter functional monomer synthesize atrazine-imprinted polymer...
Here, we report a general protocol for coating molecularly imprinted polymers (MIPs) at the superparamagnetic iron oxide nanoparticles (Fe3O4 NPs) to make highly controllable core–shell Fe3O4@MIP NPs rapid enrichment and separation of herbicides in water. Acrylic acid monomers were first anchored surface Fe3O4 by simple complexing reaction with unsaturated ions nanoparticle surface, which forms polymerizable molecule monolayer. It was found that monolayer directed selective occurrence...
Hydrophobic silver (Ag) nanoparticles of ∼16 nm diameter were self-assembled as building blocks in an emulsion to form large spherical clusters upon the removal organic solvents. The Ag have diameters range 0.5–1.0 μm and are composed thousands densely packed nanoparticles, leading generation multiple active sites or hot spots for surface-enhanced Raman scattering (SERS) a single cluster, clearly observed using confocal microscopy. Such show significant SERS activity Rhodamine-6G...
A surface-enhanced Raman scattering (SERS)-based sensor for the determination of theophylline (THO) has been developed by imprinting target molecules on surface silver nanoparticles. The desired recognition sites are generated after template removal and homogeneous distribution nanoparticles that have incorporated within polymer matrix in situreduction theophylline-silver complexes, providing molecular ability SERS active surfaces. molecules, complementary to shape, size, functionality...
Precise identification and detection of cancer cells using nanoparticle probes are critically important for early diagnosis subsequent therapy. We herein develop novel folate receptor (FR)-targeted surface-enhanced Raman scattering (SERS) nanoprobes cell imaging based on a click coupling strategy. A Raman-active derivative (5,5′-dithiobis(2-nitrobenzoic acid)-N3 (DNBA-N3)) is designed with disulfide bond covalently anchoring to the surface hollow gold nanoparticles (HAuNPs) terminal azide...
Graphene oxide (GO) has been widely used as a fluorescence quencher, but its luminescent properties, especially tailor-made controlling emission colors, have seldom reported due to heterogeneous structures. Herein, we demonstrated novel chemical oxidative strategy tune GO emissions from brown cyan without changing excitation wavelength. The precise tuning is simply achieved by varying reaction times of nanosheets in piranha solution, there no need for complex chromatography separation...
We have studied the effect of organic cation doping with dimethylammonium (DMA<sup>+</sup>), ethylammonium (EA<sup>+</sup>), and guanidinium (GA<sup>+</sup>) on properties CsPbI<sub>3</sub> perovskite by performing first-principles calculations.
Novel SERS nanotags with highly uniform and reproducible signals have been developed by the layer-by-layer assembly crosslinkage of small silver nanoparticles at surface silica particles, which opens an avenue to quantitative reliable application in bioassays.
A chemically reactive Raman probe has been developed for ultrasensitively monitoring and imaging the in vivo generation of femtomolar oxidative species as induced by anti-tumor drugs living cells.