A5101829114- Bacterial biofilms and quorum sensing
- Air Quality and Health Impacts
- Laser Material Processing Techniques
- Fluid Dynamics and Heat Transfer
- Phase-change materials and chalcogenides
- Conducting polymers and applications
- Fuel Cells and Related Materials
- Orbital Angular Momentum in Optics
- Boron Compounds in Chemistry
- X-ray Spectroscopy and Fluorescence Analysis
- Surface Modification and Superhydrophobicity
- Metal Extraction and Bioleaching
- Radiopharmaceutical Chemistry and Applications
- Chromium effects and bioremediation
- Adhesion, Friction, and Surface Interactions
- Archaeology and ancient environmental studies
- Metallurgy and Material Science
- Nuclear Physics and Applications
- Electron and X-Ray Spectroscopy Techniques
- Atmospheric chemistry and aerosols
- Electrocatalysts for Energy Conversion
- Advanced Fiber Laser Technologies
- Geology and Paleoclimatology Research
- Solid State Laser Technologies
- High-Temperature Coating Behaviors
University of Chinese Academy of Sciences
2022-2024
Shanghai Institute of Applied Physics
2006-2024
Chinese Academy of Sciences
2004-2024
Kunming University of Science and Technology
2023
Shanghai Institute of Optics and Fine Mechanics
2022
Tongji University
2022
Ningbo University
2018
Shanghai Synchrotron Radiation Facility
2012-2013
Zhejiang University
2011
[1] We report glacial varves in the sediment of Lake Xinluhai, Tibetan Plateau. Independent data 137Cs and 210Pb indicate that these are annually deposited varves. Varves appear as rhythmic units light-colored silt layer capped by a dark clay under microscope. Varve thickness Xinluhai is sensitive to precipitation because accumulation strongly affected monsoon rainfall area. A general decreasing trend can be observed varve over past 160 years. Spectral analyses record dominated cycles which...
The spatial and temporal distribution of metals in unsaturated Pseudomonas putida CZ1 biofilms was determined using synchrotron-based X-ray fluorescence microscopy (XRF). It found that Fe, Mn, Ca were mainly distributed near the air-biofilm interface a biofilm grown on 40 mM citrate, while there two Fe-, Mn-, Ca-rich layers within 10 citrate. sorption copper by medium containing citrate rapid, with being throughout after only 1 h exposure. Copper initially colocalized Fe Mn element then...
An artifact of brass apparently predating the "Bronze Age" was unearthed at Jiangzhai site (China, Shaanxi Province, 4700-4000 BC). So that we might infer probable metallurgical process for production this early brass, performed simulation experiments that, in turn, involved two widely differing methodologies. For convenience refer to their routes as "melting" on one hand, and "solid-state reduction" other. Clearly, either these processes could have supplied starting material subsequent...
Carbon-supported cobalt catalyst (Co-BP) and polypyrrole-modified carbon-supported (Co-PPY-BP) are prepared by an impregnation–chemical method characterized X-ray diffraction, photoelectron spectroscopy, absorption fine structure, to investigate their electronic atomic structures. It is found that a Co ion bonds with two pyrrolic N atoms form Co–N2 bond in the Co-PPY-BP sample. Those together four O at 2.04 Å constitute distorted octahedral structure. The bond, which central has high valence...
Femtosecond laser pulse of 800 nm wavelength and 150 fs temporal width ablation As₂S₃ chalcogenide glasses is investigated by pump-probing technology. At lower fluence (8.26 mJ/cm²), the surface temperature dropping to melting point fast (about 43 ps), which results in a clean hole on surface. As increases, it takes longer time for lattice cool at high 200 ps 18.58 mJ/cm², about 400 30.98 mJ/cm²). The heating induces pool center, accelerates material diffusing gathering surrounding crater,...
Abstract In recent years, a rapid advance in fabricating smart surfaces with tunable wettability have been witnessed. However, switchable superamphiphobic surface remains great challenge today. Here, glass wetting performance between amphipathicity and amphiphobicity, “lotus effect” “petal effect,” isotropic anisotropic amphiphobicity are obtained by femtosecond‐laser‐induced backward transfer (LIBT) method. By printing simple patterns, polytetrafluoroethylene (PTFE) is spatial‐selectively...
Synchrotron radiation microbeam X-ray fluorescence (micro-SXRF) was used to analyze individual aerosol particles collected at a height of 2 m above heavy-traffic roadside in heavy-industrial area Shanghai. A pattern recognition technique, which took micro-SXRF spectra single as its fingerprint, identify the origins particles. The from environmental monitoring site are mainly metallurgic industry (26%), unleaded gasoline automobile exhaust (15%), coal combustion (10%), cement dust (10%) and...
In order to investigate the microbe-mineral interaction in micro scale, spatial distribution and speciation of Cu S Halothiobacillus HT1 biofilm formed on a CuS surface was examined using synchrotron-based X-ray techniques. Confocal laser scanning microscope (CLSM) results indicated that formation gave rise distinct chemical redox gradients, leading diverse niches biofilm. Live cells were distributed at air-biofilm membrane-biofilm interface. oxidized by biofilm, copper penetrated into...
An anisotropic plasmonic surface of nanoellipsoid arrays is successfully fabricated on an Au film using slit-shaping-based femtosecond laser nanoprinting. The size and orientation the can be exquisitely flexibly controlled by adjusting width direction slit pulse energy. By dark-field optical micro-spectroscopy, color rendering as well resonant light scattering from lateral vertical modes are experimentally theoretically investigated in visible spectral range. In addition, prospective use...