A5100378226- Crystallization and Solubility Studies
- X-ray Diffraction in Crystallography
- Mesoporous Materials and Catalysis
- Analytical Chemistry and Chromatography
- Catalytic Processes in Materials Science
- Luminescence and Fluorescent Materials
- Advanced Photocatalysis Techniques
- Luminescence Properties of Advanced Materials
- Advanced Combustion Engine Technologies
- Zeolite Catalysis and Synthesis
- Nanoplatforms for cancer theranostics
- Microfluidic and Capillary Electrophoresis Applications
- Covalent Organic Framework Applications
- Vehicle emissions and performance
- Corrosion Behavior and Inhibition
- Biodiesel Production and Applications
- Environmental Sustainability in Business
- Memory and Neural Mechanisms
- Advanced Polymer Synthesis and Characterization
- Catalysis and Oxidation Reactions
- Metal-Organic Frameworks: Synthesis and Applications
- Neuroscience and Neuropharmacology Research
- Corporate Social Responsibility Reporting
- Ferroelectric and Piezoelectric Materials
- Carbon and Quantum Dots Applications
China University of Mining and Technology
2024-2025
Northeast Normal University
2024-2025
Northeastern University
2024-2025
Lanzhou Institute of Chemical Physics
2021-2024
Chinese Academy of Sciences
2014-2024
University of Chinese Academy of Sciences
2014-2024
Changchun University
2024
Peking University
2024
Lanzhou University
2024
Beihang University
2023
In this work, a simple method is demonstrated for the synthesis of multifunctional core–shell nanoparticles NaYF 4 :Yb,Er@NaYF :Yb@NaNdF :Yb@NaYF :Yb@PAA (labeled as Er@Y@Nd@Y@PAA or UCNP@PAA), which contain highly effective 808‐nm‐to‐visible UCNP core and thin shell poly(acrylic acid) (PAA) to achieve upconversion bioimaging pH‐sensitive anticancer chemotherapy simultaneously. The Nd 3+ ‐sensitized UCNPs are optimized by varying number, size, host lattices. final Er@Y@Nd@Y nanoparticle...
This study investigates the impact of public participation on corporate greenwashing behavior among listed companies in China from 2011 to 2019, set against a backdrop increasing global environmental regulations. Corporate greenwashing, characterized by misleading claims, poses significant barrier sustainable development. Despite recognition social governance, organizational inertia often prevents responding effectively. Our analysis reveals that leads stricter regulations, thereby reducing...
We have performed a systematic ground state geometry search for ${\mathrm{Ge}}_{n}$ neutrals and cations in the $n\ensuremath{\le}16$ size range using density functional theory--local approximation gradient-corrected methods. Like their silicon analogs, medium-sized Ge clusters are stacks of tricapped trigonal prism subunits. However, structures ${\mathrm{Si}}_{n}$ $n\phantom{\rule{0ex}{0ex}}=\phantom{\rule{0ex}{0ex}}13$ $n\ensuremath{\ge}15$ differ details. The onset structural divergence...
It is well-known that controlled/living radical copolymerization (CLRcoP) yields gradient copolymer with the composition varying along chain length. The distribution of as-synthesized product solely determined by comonomer reactivity ratios and thus not well controlled. This work reports first experimental example control over through semibatch operations. Using styrene (St)/butyl acrylate (BA) as a model system, we synthesized uniform linear copolymers via reverse addition−fragmentation...
In order to reduce the emission of coal bed methane mixed with air (can be regarded as a CH4 and N2 mixture), which will helpful adequately utilize natural resources protect environment, separation via hydrate formation in tetra-n-butylammonium bromide (TBAB) solution was systematically studied this work. The CH4−N2 conditions were determined TBAB first, then experiments carried out TBAB−sodium dodecyl sulfate (SDS) solution, respectively. experimental results show that form much easier...
A new strategy using non-porous silica (NPS) spheres as the support and covalent organic frameworks (COFs) porous functional shell for liquid chromatography was developed to ensure independent effect of COFs on separation. As a proof concept, NPS@TPB-DMTP prepared chromatographic analysis 1,3,5-tris(4-aminophenyl)benzene (TPB) 2,5-dimethoxy-1,4-benzenedicarboxaldehyde (DMTP) monomers by in situ polymerisation surface NPS. It is way developing COF-based stationary phases, which will be...
Abstract Metal‐free organic photocatalysts for photo‐mediated reversible deactivation radical polymerization (photo‐RDRP) are witnessed to make increasing advancement in the precise synthesis of polymers. However, challenges still exist development high‐efficiency and environmentally sustainable carbon dots (CDs)‐based organocatalysts. Herein, N‐doped CDs derived from phenanthroline derivative (Aphen) prepared as metal‐free photoinduced electron transfer addition‐fragmentation chain...
Comprehensive Summary Substantial progress has been made over recent years in visible light‐driven dual photoredox/copper catalyzed atom transfer radical polymerization (photo‐ATRP) through the design of photocatalysts (PCs) and optimization reaction conditions. However, it remains challenging to achieve efficient photo‐ATRP with low loadings both photocatalyst copper(II). In this study, two donor‐acceptor organic PCs based on pyrazino[2,3‐ f ][1,10]phenanthroline were successfully used...
Abstract Microbiologically influenced corrosion (MIC) of engineering structures poses significant safety risks, particularly in environments where sulfate‐reducing bacteria (SRB) are prevalent. In this study, a highly stable hydrosol with strong antibacterial properties is developed by adsorbing hydrophilic groups polymer chains onto the Cu‐Ag bimetallic nanoparticles (BNPs). The synergistic effects polyvinylpyrrolidone (PVP) and polyvinyl alcohol (PVA) overcame incompatibility between...
We have obtained photoelectron spectra (PES) for silicon cluster anions with up to 20 atoms. Efficient cooling of species in the source has allowed us resolve multiple features PES all sizes studied. Spectra an extensive set low-energy Si(-)(n) isomers found by a global search been simulated using density functional theory and pseudopotentials. Except n = 12, calculations ground states agree measurements. This does not hold other plausible geometries. Hence data validate tricapped trigonal...
Abstract Anxiety is a prevalent psychological disorder, in which the atypical expression of certain genes and abnormality amygdala are involved. Intermediate processes between genetic defects anxiety, pathophysiological characteristics neural network, remain unclear. Using behavioral task, two-photon cellular imaging electrophysiology, we studied networks basolateral influences metabotropic glutamate receptor (mGluR) on their dynamics DBA/2 mice showing anxiety-related defects. Amygdala...
Core–shell structured Nd3+-sensitized NaYF4:Yb/Nd/Er@NaYF4:Nd@mSiO2 nanoparticles (NPs) were designed and synthesized. The NaYF4:Yb/Nd/Er@NaYF4:Nd core imparts the nanomaterials with luminescence properties for upconversion optical imaging under 808 nm laser irradiation, whereas mesoporous SiO2 shell allows to be loaded anticancer drug doxorubicin (DOX). In vivo toxicity assessment has confirmed that NPs have low systematic in healthy mice. antitumor activity shows nanocomposites exhibit...
808 nm excited upconversion nanoparticles (UCNPs) have received extensive attention in the biomedical areas. However, one of limitations UCNPs is their lower luminescence efficiency. Aimed at this problem, a series BaGdF5-based were prepared by layer-by-layer procedure. And UC properties are optimized varying doping concentration rare earth ions, amount and types shells. It found that if core BaGdF5:20%Yb(3+)/2%Er(3+) was fixed 0.5 mmol, conditions three shell layers 0.3 mmol...
Abstract We present the fabrication, upconversion‐luminescence cell imaging, and drug‐storage/release properties of upconversion‐luminescent core/mesoporous‐silica‐shell‐structured β‐NaYF 4 :Yb 3+ ,Er @SiO 2 @mSiO composite nanospheres with a size 80 nm. The biocompatibility test on L929 fibroblast cells using 3‐(4,5‐dimethylthiazol‐2‐yl)‐2,5‐diphenyltetrazolium bromide (MTT) assay reveals low cytotoxicity system. drug‐storage in vitro release tests indicate that these multifunctional...
Electrospun nanocomposite fiber fabric, consisting of polyaniline nanoparticles, poly(ε-caprolactone), and gelatin, efficiently inhibited tumor growth <italic>in vivo</italic> by orthotopic photothermal treatment.
For a large-aperture space telescope, one of the key techniques is method for designing lightweight primary mirror assembly (PMA). In order to minimize surface error under axial gravity, lateral and polishing pressure at same time, topology optimization with multi-objective function combined parametric introduced in this paper. The weighted compliance minimum selected as objective maximum structural stiffness. Then sensitivity analysis size are used determine structure parameters. Compared...