A5009236216- Mass Spectrometry Techniques and Applications
- Analytical Chemistry and Chromatography
- Advanced Chemical Sensor Technologies
- Metabolomics and Mass Spectrometry Studies
- Polyoxometalates: Synthesis and Applications
- Chemical Synthesis and Reactions
- Analytical chemistry methods development
- Advanced Photocatalysis Techniques
- Metal-Organic Frameworks: Synthesis and Applications
- Ion-surface interactions and analysis
- Biosensors and Analytical Detection
- Metal complexes synthesis and properties
- Copper-based nanomaterials and applications
- Pesticide Residue Analysis and Safety
- Carbon dioxide utilization in catalysis
- Identification and Quantification in Food
- Melamine detection and toxicity
- Advanced Proteomics Techniques and Applications
- Metalloenzymes and iron-sulfur proteins
- Forensic Toxicology and Drug Analysis
- Magnetism in coordination complexes
- Gas Sensing Nanomaterials and Sensors
- Isotope Analysis in Ecology
- Organometallic Complex Synthesis and Catalysis
- Electrocatalysts for Energy Conversion
Jinan University
2017-2025
National University of Defense Technology
2024-2025
Southwest University of Science and Technology
2023-2024
Rice Research Institute
2023-2024
Nanjing University of Science and Technology
2024
China Pharmaceutical University
2024
Tobacco Research Institute
2024
Hubei University of Science and Technology
2024
Monash University
2024
Zhoukou Normal University
2024
Cocatalysts have been extensively used to accelerate the rate of hydrogen evolution in semiconductor-based photocatalytic systems, but influence interface state between semiconductor and cocatalyst has rarely investigated. Here, we demonstrate a feasible strategy two-dimensional (2D) nanojuctions enhance solar generation MoS2/TiO2 system. Loading 2D MoS2 nanosheets on surface anatase TiO2 with exposed (001) facets greatly increases interfacial contact. At an optimal ratio 0.50 wt % MoS2,...
Without any sample pretreatment, trace amounts of melamine in various milk products were rapidly detected noting the characteristic fragments (i.e., m/z 110, 85, and 60) MS/MS spectrum protonated molecules (m/z 127) recorded by using surface desorption atmospheric pressure chemical ionization mass spectrometry. Signal responses most abundant ionic fragment 85) well correlated with melaime products, showing a dynamic range about 5 orders magnitude. The limit detection (LOD) was found to be...
Electrospray ionization (ESI) is a mass spectrometric technique widely used in various fields including chemistry, biology, medicine, pharmaceutical industry, clinical assessment, and forensic science. In this study, we report simple economical ESI-mass spectrometry (MS) technique, which makes use of disposable wooden tips (wooden toothpicks) for loading samples. Samples could be loaded by normal pipetting onto the tip or simply dipping into sample solutions. The hydrophilic porous nature...
A novel MoS2 nanosheet-coated ZnO heterostructure photocatalyst was successfully synthesized via a simple hydrothermal method. Two-dimensional nanosheets were intimately deposited onto surface to form an intimate function, which favors the charge-transfer and suppresses recombination of photogenerated electron-hole pairs between ZnO, resulting in significantly enhanced photocatalytic activity for hydrogen evolution. The activities MoS2-ZnO composite photocatalysts with different contents...
Molecular analysis of exhaled breath aerosol (EBA) with simple procedures represents a key step in clinical and point-of-care applications. Due to the crucial health role, face mask now is safety device that helps protect wearer from breathing hazardous particles such as bacteria viruses air; thus also blocked congregate small space inside mask. Therefore, direct sampling trace constituents EBA using can rapidly provide useful insights into human physiologic pathological information. Herein,...
Selenium (Se) is an essential micronutrient for human health. Deficiency and suboptimality of Se in populations are a potential health risk. The reduction such risk by biofortification crops, particularly wheat has drawn much attention, especially color-grained as it rich anthocyanins can be used major source antioxidants diet. Herein, two-year field study on the purple-grained cultivar (202w17) common (Shannong 129) was conducted with soil application (SeS) foliar spray (SeF) selenium....
Extractive electrospray ionization (EESI) is a powerful ambient technique that can provide comprehensive mass spectrometric (MS) information on aerosols, complex liquids, or suspensions without any sample pretreatment. An understanding of the EESI mechanism critical for defining its range application, advantages, and limitations EESI, improving repeatability, sensitivity, selectivity. However, no systematic study mechanisms has been conducted so far. In this work, fluorescence studies in...
“Soft” ionization: EESI deposits charges on native proteins, which are separated from any high electric field. In this way proteins can be characterized by mass spectrometry even raw biological samples without significant conformational changes or reduction in activity. EESI-MS is a sensitive tool for the high-throughput analysis of trace levels under conditions.
A stable MOF material (ZJUT-1) with fine-tuned nanocages, exhibiting the desired size, shape, and functionalities for trapping a single C<sub>3</sub>H<sub>4</sub>molecule, can efficiently separate trace amounts of C<sub>3</sub>H<sub>4</sub>from 1/99 C<sub>3</sub>H<sub>4</sub>/C<sub>3</sub>H<sub>6</sub>mixture.
Analysis of biological tissue at a molecular level is great importance in biological, medical and clinical studies. In this manuscript, we report that both plant animal tissues can be directly ionized analyzed by mass spectrometry under ambient conditions. By adding some solvents applying high voltage, spray ionization induced the tip spectrum observed. Various have been tested compounds such as lipids, alkaloids, glucosides, lignans, pharmaceuticals proteins could detected spectra. This new...
Replacement of capillary with solid substrates for sample loading and ionization has created many new possibilities electrospray mass spectrometry (ESI-MS). Surface modification is an attractive strategy to enhance the analytical capability solid-substrate ESI-MS allow understanding relationship between surface activity properties. In this study, we performed wooden tips hydrophobic (-C18), basic (-NH2), acidic (-SO3H) functional groups applied various sampling methods, i.e., extractive...
Rapid and sensitive detection of metabolites chemical residues in human tears is highly beneficial for understanding eye health. In this study, Schirmer paper was used noninvasive microsampling tears, then spray mass spectrometry (PSMS) performed direct analysis tears. PSMS successfully rapid diagnosis dry-eye syndrome by detecting the volume Drugs abuse, therapeutic drugs, pharmacodynamics were also investigated PSMS. Furthermore, specific markers environmental exposures air to eyes,...
A novel air-tight neutral desorption enclosure has been fabricated to noninvasively sample low picograms of explosives 2,4,6-trinitrotoluene (TNT), hexahydro-1,3,5-trinitro-1,3,5-triazine (RDX), octahydro-1,3,5,7-tetranitro-1,3,5,7-tetraazocine (HMX), triacetone triperoxide (TATP), and nitroglycerin (NG) from human skin using a nitrogen gas beam. Without further pretreatment, the explosive mixtures collected surface were directly transported by carrier over 4-m distance for sensitive...
Drug analysis is an indispensable task in controlling drug abuse, which a serious problem worldwide nowadays. In this study, we report simple and rapid approach for detection quantitation of drugs-of-abuse urine oral fluid by wooden-tip electrospray ionization mass spectrometry (WT-ESI-MS). We demonstrated that ketamine, one the most common abused drugs, its major metabolite, norketamine, raw could be readily detected quantified WT-ESI-MS with only little sample preparation no...