A5100368529- Gold and Silver Nanoparticles Synthesis and Applications
- Polymer Surface Interaction Studies
- X-ray Diffraction in Crystallography
- Crystallization and Solubility Studies
- Pickering emulsions and particle stabilization
- Electrostatics and Colloid Interactions
- Quantum Dots Synthesis And Properties
- Electrochemical Analysis and Applications
- Lipid Membrane Structure and Behavior
- Metal-Organic Frameworks: Synthesis and Applications
- Radioactive element chemistry and processing
- Chemical Synthesis and Characterization
- Molecular Sensors and Ion Detection
- Spectroscopy and Quantum Chemical Studies
- Surfactants and Colloidal Systems
- Crystallography and molecular interactions
- Perovskite Materials and Applications
- Luminescence Properties of Advanced Materials
- Electronic and Structural Properties of Oxides
- Nanocluster Synthesis and Applications
- Iron oxide chemistry and applications
- Covalent Organic Framework Applications
- ZnO doping and properties
- Erythrocyte Function and Pathophysiology
- Advanced Nanomaterials in Catalysis
Ministry of Agriculture and Rural Affairs
2025
Fujian Agriculture and Forestry University
2025
Chinese Academy of Agricultural Sciences
2025
Institute of Plant Protection
2025
Ames National Laboratory
2015-2024
Institute of Process Engineering
2023-2024
University of Chinese Academy of Sciences
2023-2024
North China University of Science and Technology
2024
Beijing Jiaotong University
2024
North China Electric Power University
2013-2024
Two novel lanthanide metal-organic framework (Ln-MOF) luminescent sensors for the detection of picric acid have been successfully assembled. Following a function-oriented strategy, urea hydrogen-bonding functional sites were introduced into two MOF frameworks. A structural analysis indicated that MOFs exact same structure, namely 2D layers with diamond-shaped holes are accumulated 3D through interactions between and carboxylate groups. Interestingly, only half units involved in supporting...
We describe a robust method to assemble nanoparticles into highly ordered superlattices by inducing aqueous phase separation of neutral capping polymers. Here we demonstrate the approach with thiolated polyethylene-glycol-functionalized gold (PEG-AuNPs) in presence salts (for example, K2CO3) solutions that spontaneously migrate liquid-vapor interface form Gibbs monolayer. show increasing salt concentration, PEG-AuNP monolayers transform from two-dimensional (2D) gas-like liquid-like and...
Taking advantage of the aqueous biphasic behavior polyethylene glycol (PEG)/salts, recent experiments have demonstrated self-assembly and crystallization PEG-grafted gold nanoparticles (PEG-AuNPs) into tunable two-dimensional (2D) supercrystals by adjusting salt concentration (for instance, K2CO3). In those studies, combined experimental evidence theoretical analysis pointed out possibility that similar strategies can lead to three-dimensional (3D) formation ordered nanoparticle...
Proton-conducting solid oxide electrolysis cells (H-SOECs) have attracted a lot of attention due to their high efficiency, energy-saving ability, and environmental friendliness. The ideal H-SOEC oxygen electrode materials are triple-conducting oxides with mixed proton (H+), ion (O2–), electron (e–) conductivity. Herein, the triple conductive Pr2NiO4+δ (PNO)-based perovskite (Pr0.9La0.1)2(Ni0.8Cu0.2)O4+δ (PLNCu) is chosen as impressive electrochemical performance. Its crystal structure,...
Abstract 2D magnetic materials hold substantial promise in information storage and neuromorphic device applications. However, achieving a material with high Curie temperature ( T C ), environmental stability, multi‐level states remains challenge. This is particularly relevant for spintronic devices, which require resistance to enhance memory density fulfil low power consumption multi‐functionality. Here, the synthesis of non‐layered triangular hexagonal magnetite (Fe 3 O 4 ) nanosheets are...
Ion-specific effects on the assembly and crystallization of polyethylene-glycol-grafted Au nanoparticles (PEG-AuNPs) at vapor–liquid interface are examined by surface sensitive synchrotron X-ray scattering methods. We show that monovalent salts, such as KCl NaCl, do not advance phase separation pure PEG room temperature induce two-dimensional (2D) self-assembly PEG-AuNPs with some distinctions. Whereas for 2D hexagonal coherence length PEG-AuNP superlattices is remarkably large compared to...
Ionic specificity effects, i.e., ions of the same valence leading to different macroscopic are studied by considering a Langmuir monolayer arachidic acid over solution containing either Fe(3+) or La(3+). We systematically vary pH levels as way control interfacial surface charge and characterize system surface-sensitive x-ray scattering spectroscopic techniques. show that critical pressure at tilted (L2) untilted (LS) transition is ionic specific varies with pH. While maximum density bound...
We determine the distribution of two trivalent ions Fe(3+) and La(3+) next to different amphiphilic charged interfaces as or complexes, consisting phosphate lipid dihexadecyl (DHDP) fatty acid arachidic (AA). These amphiphiles provide a wide range pK(a) values, from 2.1 5.1 (AA), thus allowing manipulation surface charge over extremely low pH (pH ∼1 larger), limiting cases specificity for amphiphiles. find that is mostly sensitive charge, whereas binding depends on its character in solution...
Although a minor component of the lipidome, phosphatidic acid (PA) plays crucial role in nearly all signaling pathways involving cell membranes, part because its variable electrical charge response to environmental conditions. To investigate how is regulated domains PA, we applied surface-sensitive X-ray reflectivity and fluorescence near-total-reflection techniques determine binding divalent ions (Ca(2+) at various pH values) 1,2-dimyristoyl-sn-glycero-3-phosphate (DMPA) simpler lipid...
We report on halide ion (Cl–, Br–, I–) adsorption from the subphase water to a cationic Langmuir monolayer consisting of 1,2-dipalmitoyl-3-trimethylammonium-propane (DPTAP) molecules at air/water interface. Reductions in OH signal sum-frequency spectra and surface pressure π–A isotherm follow order anion size, indicating preferable larger anions better screen charge DPTAP monolayer. Complementary X-ray fluorescence measurements Cl– I– reveal that integrated number adsorbed ions within...
RNA pesticides have emerged as a promising alternative to conventional chemical due their high specificity and minimal environmental impact. However, the instability of molecules in environment challenges associated with effective delivery target pests limit broader application. This study addresses these by developing dual system using chitosan (CS) Metal-Organic Frameworks (MOFs) enhance efficacy double-stranded (dsRNA) cycloxaprid against Diaphorina citri, vector citrus greening disease....
In this work, a systematic computational study was performed to investigate the quantum sieving in nine typical metal–organic frameworks (MOFs) for separation of hydrogen isotope mixtures. The results show that Cu(F-pymo)2 and CPL-1 exhibit exceptional selectivity is higher than other MOFs as well nanoporous materials such carbon nanotubes, slit-shaped graphites, zeolites studied so far. A concept named "quantum effective pore size" (QEPS) proposed which can incorporate effects sieving, thus...
We report on the assembly of gold nanorods functionalized with poly(ethylene glycol) in aqueous suspensions by electrostatic control and hydrogen bonds provided polyelectrolyte linkers (i.e., interpolymer complexation processes). Small-angle X-ray scattering reveals that quality stability assemblies into hexagonal columnar phases increase temperature. Our study shows lattice constant ordered structures is tunable over a wide range values interplay between hydrophobic effects.
Abstract We report the successful growth of square-like layered single crystals VOCl with a size few millimeters by chemical vapor transport method, and demonstrate that show good air stability can be easily exfoliated. The atomic-resolution structure is consistent theoretical atomic models exfoliated flakes exhibit uniform surface potential thickness-independent work function in interval 4–263 nm. Further magnetic measurements manifest crystal an N-type ferrimagnetic phase at 150 K...
Surface sensitive X-ray scattering and spectroscopic studies have been conducted to determine structural properties of Mms6, the protein in Magnetospirillum magneticum AMB-1 that is implicated as promoter magnetite nanocrystals growth. pressure versus molecular area isotherms indicate Mms6 forms stable monolayers at aqueous/vapor interface are strongly affected by ionic conditions subphase. Analysis reflectivity from shows conformation depends on surface presence ions solutions, particular...