A5101734738- Advanced biosensing and bioanalysis techniques
- Advanced Condensed Matter Physics
- Advanced Nanomaterials in Catalysis
- Multiferroics and related materials
- Magnetic and transport properties of perovskites and related materials
- Catalytic Alkyne Reactions
- DNA and Nucleic Acid Chemistry
- RNA Interference and Gene Delivery
- Perovskite Materials and Applications
- Electrochemical sensors and biosensors
- Conducting polymers and applications
- Organic Electronics and Photovoltaics
- Catalytic C–H Functionalization Methods
- Nuclear materials and radiation effects
- Nanocluster Synthesis and Applications
- Carbon dioxide utilization in catalysis
- Advanced Photocatalysis Techniques
- Cyclopropane Reaction Mechanisms
- Physics of Superconductivity and Magnetism
- Electronic and Structural Properties of Oxides
- Chemical synthesis and alkaloids
- CO2 Reduction Techniques and Catalysts
- Organometallic Complex Synthesis and Catalysis
- Quantum Dots Synthesis And Properties
- Rare-earth and actinide compounds
Peking University
2016-2024
Beijing National Laboratory for Molecular Sciences
2013-2024
Institute of Physics
1996-2024
Chinese Academy of Sciences
2013-2022
University of Chinese Academy of Sciences
2013-2022
National Center for Nanoscience and Technology
2015-2020
Suzhou Institute of Nano-tech and Nano-bionics
2019-2020
Luoyang Institute of Science and Technology
2008-2019
Center for NanoScience
2015-2017
Center for Excellence in Education
2016
To extend the functionalities of two-dimensional graphene-like layered compounds as versatile materials, modification transition metal dichalcogenide nanosheets such MoS2 with nanoparticles is great and widespread interest. However, few studies are available on preparation bimetallic supported MoS2. Herein, a facile efficient method to synthesize MoS2–PtAg nanohybrids by decorating ultrathin octahedral Pt74Ag26 alloy has been reported. The as-prepared MoS2–Pt74Ag26 were investigated novel...
This paper presents a solvothermal strategy for chemical modification of TiO2 nanoparticles with carboxylic acids. Solvothermal reaction between the and acid molecules in an autoclave at 100 °C provides acid-modified particles efficiency much higher than conventional immersion method. were prepared by hydrolysis titanium isopropoxide nitric solution; modified characterized powder X-ray diffraction pattern, scanning electron microscopy, absorption Fourier transform infrared spectra,...
The complex pathogenic mechanisms of Alzheimer's disease (AD) include the aggregation β-amyloid peptides (Aβ) into oligomers or fibrils as well Aβ-mediated oxidative stress, which require comprehensive treatment. Therefore, inhibition Aβ and free-radical scavenging are essential for treatment AD. Nanoparticles (NPs) have been found to influence process in vitro. Herein, we report effects molybdenum disulfide (MoS2) NPs on aggregation. Polyvinylpyrrolidone-functionalized MoS2 were fabricated...
A novel magnetic-enhanced colorimetric assay was constructed based on aptamer conjugated PtCo bimetallic nanoparticles (NPs) with high oxidase-like catalytic activity, water solubility, low cell toxicity, and superparamagnetic properties. It found that the incorporation of magnetic metal Co atoms into NPs could not only be facilitated for separation, but also resulted in significantly improved activity cancer-cell detection without destructive H2O2. The present work demonstrates a general...
Putative G-quadruplex-forming sequences (PQS) are highly prevalent in human genome; however, the structures and functions of most PQSs genome poorly understood. Therefore, selective recognition certain types G-quadruplexes (G4s) is important for study G4s. A new light up fluorescent probe, BPBC composed benzimidazole carbazole moieties was designed synthesized. possesses a crescent-shaped π-conjugated planar core that slightly larger than dimension G-quartet plane This structure endows with...
Functional CuO/Pt nanocomposites were successfully constructed as peroxidase mimics for highly selective colorimetric detection of ascorbic acid.
We present a systematic study of the structure, electronic, and magnetic properties new branch intermetallic compounds, $R{\mathrm{V}}_{6}{\mathrm{Sn}}_{6}(R=\mathrm{Tb}\text{\ensuremath{-}}\mathrm{Tm})$ by using x-ray diffraction, susceptibility, magnetization, electrical transport, heat-capacity measurements. These compounds feature combination nonmagnetic vanadium kagome sublattice rare-earth triangular that supports various spin anisotropies based on different $R$ ions. find orders for =...
Biogenic polyamines participate in regulating gene expression, activating DNA synthesis and facilitating DNA–protein interaction through with DNA/RNA. The of G-quadruplexes (G4s) has been reported to modulate the structure G4s. In this paper, we investigate effects on one properties G4s, G4/hemin peroxidase. Three (spermine, spermidine putrescine) are found have positive different DNAzymes, which spermine exhibits strongest enhancement efficiency. CD UV/Vis spectral analysis suggests two...
In this paper, performance in hybrid solar cells based on ZnO nanorod array (ZnO-NA) is significantly improved by formation of a heterostructured ZnO/CdS-core/shell (ZnO-CdS-NA), the CdS shell effects device including charge transport and recombination dynamics are discussed, model concerning ineffective polymer phase proposed for understanding generation upon formation. The ZnO-CdS-NAs with varied thickness (L) were prepared depositing quantum dots nanorods ZnO-NA. Solar filling interspaces...
Multifunctional aptamer–ZnO–Dox nanoconjugates have been successfully constructed for targeted photocatalytic and chemotherapy against cancer cells.
Guanine-rich oligonucleotides (GROs) have attracted considerable attention as anticancer agents, because they exhibit cancer-selective antiproliferative activity and can form G-quadruplex structures with higher nuclease resistance cellular uptake. Recently, a GRO, AS1411 has reached phase II clinical trials for acute myeloid leukemia renal cell carcinoma. The of GROs been associated various protein targets; however the real mechanisms action remain unclear. In this study, we showed evidence...
Nanowires have attracted much attention due to their potential bioapplications, such as delivery of drugs or sensing devices. Here we report the development a unique cell-capture and release platform based on nanowires. The combination nanowires, surface-binding peptides, cell-targeting aptamers leads specific efficient capture cancer cells. Moreover, binding processes are reversible, which is not only useful for downstream analysis but also reusability substrate. Our work provides new...
A concise total synthesis of mesembrine (four steps from known compound) was achieved both racemically and asymmetrically. Two key reactions were used here. One is the Rh(I)-catalyzed [5 + 1] cycloaddition vinylcyclopropane 3c CO. The other one Buchwald's Pd-catalyzed coupling reaction that coupled β,γ-cyclohexenone 2c with aryl bromide 5 (using dppe ligand for racemic or (S)-Antphos asymmetric synthesis) to give γ,γ-disubstituted α,β-cyclohexenone 1c. Finally, aza-Michael addition converted...
The perovskite SrIrO_{3} is an exotic narrow-band metal owing to a confluence of the strengths spin-orbit coupling (SOC) and electron-electron correlations. It has been proposed that topological magnetic insulating phases can be achieved by tuning SOC, Hubbard interactions, and/or lattice symmetry. Here, we report substitution nonmagnetic, isovalent Sn^{4+} for Ir^{4+} in SrIr_{1-x}Sn_{x}O_{3} perovskites synthesized under high pressure leads metal-insulator transition antiferromagnetic (AF)...
This paper reports the chemical modification effects at charge separation interface on performance of hybrid solar cells consisting poly(2-methoxy-5-(2-ethylhexyloxy)-1,4-phenylenevinylene) (MEH-PPV) as an electron donor (D) and vertically aligned ZnO nanorod arrays acceptor (A). Results show that, with increasing time Ts for grafting dye Z907 onto surface from 0 to 8 h, transfer efficiency MEH-PPV/ZnO keeps increasing, short circuit current (Jsc) increases reaches a peak value = but open...