A5100446373- Advanced biosensing and bioanalysis techniques
- Advanced Photocatalysis Techniques
- Gold and Silver Nanoparticles Synthesis and Applications
- RNA Interference and Gene Delivery
- Nanocluster Synthesis and Applications
- Carbon and Quantum Dots Applications
- Biosensors and Analytical Detection
- Electrochemical Analysis and Applications
- Luminescence and Fluorescent Materials
- Quantum Dots Synthesis And Properties
- X-ray Diffraction in Crystallography
- Electrochemical sensors and biosensors
- Crystallization and Solubility Studies
- Conducting polymers and applications
- Electrocatalysts for Energy Conversion
- Advanced Nanomaterials in Catalysis
- Molecular Junctions and Nanostructures
- Molecular Sensors and Ion Detection
- Advancements in Battery Materials
- Catalytic Processes in Materials Science
- DNA and Nucleic Acid Chemistry
- Lipid Membrane Structure and Behavior
- Advanced Battery Materials and Technologies
- Catalysts for Methane Reforming
- Copper-based nanomaterials and applications
Chinese Academy of Sciences
2016-2025
Tsinghua University
2011-2025
Soochow University
2016-2025
Second Affiliated Hospital of Soochow University
2016-2025
Institute of Biophysics
2018-2025
Chongqing University
2018-2025
East China Normal University
2018-2025
Institute of Solid State Physics
2025
University of Science and Technology of China
2025
Dalian Municipal Central Hospital
2023-2025
Graphene is a monolayer of tightly packed carbon atoms that possesses many interesting properties and has numerous exciting applications. In this work, we report the antibacterial activity two water-dispersible graphene derivatives, oxide (GO) reduced (rGO) nanosheets. Such graphene-based nanomaterials can effectively inhibit growth E. coli bacteria while showing minimal cytotoxicity. We have also demonstrated macroscopic freestanding GO rGO paper be conveniently fabricated from their...
Abstract Coupling nanomaterials with biomolecular recognition events represents a new direction in nanotechnology toward the development of novel molecular diagnostic tools. Here graphene oxide (GO)‐based multicolor fluorescent DNA nanoprobe that allows rapid, sensitive, and selective detection targets homogeneous solution by exploiting interactions between GO molecules is reported. Because extraordinarily high quenching efficiency GO, ssDNA probe exhibits minimal background fluorescence,...
A facile hydrothermal synthesis route to N and S, co-doped graphene quantum dots (GQDs) was developed by using citric acid as the C source urea or thiourea S sources. Both doped GQDs showed high yield (78% 71%), excitation independent under of 340–400 nm single exponential decay UV excitation. broad absorption band in visible region appeared due doping with sulfur, which alters surface state GQDs. However, show different color emission 420–520 their region. The excellent photocatalytic...
Chromium(VI) [Cr(VI)] is considered as a severe environmental pollutant, due to its highly toxic and carcinogenic properties. Therefore, low cost, sensitive sensors for the determination of Cr(VI) are demanded. It well-known that luminescent carbon dots (CDs) have been successfully applied fluorescent nanosensors pH, ions, molecular substances. In present work, we demonstrated an on-off CD probe detecting based on inner filter effect (IFE) because absorption bands Cr(IV) fully covered...
Designed oligonucleotides can self-assemble into DNA nanostructures with well-defined structures and uniform sizes, which provide unprecedented opportunities for biosensing, molecular imaging, drug delivery. In this work, we have developed functional, multivalent by appending unmethylated CpG motifs to three-dimensional tetrahedra. These small-sized functional are compact, mechanically stable, noncytotoxic. We demonstrated that resistant nuclease degradation remain substantially intact in...
Strand and deliver: Two different optical methods to analyze Hg2+ ions based on the formation of thymine–Hg2+ complexes are developed. These include analysis by using aggregated gold nanoparticles a DNA-based machine (see scheme). Supporting information for this article is available WWW under http://www.wiley-vch.de/contents/jc_2002/2008/z705991_s.pdf or from author. Please note: The publisher not responsible content functionality any supporting supplied authors. Any queries (other than...
Size and shape of nanoparticles are generally controlled by external influence factors such as reaction temperature, time, precursor, and/or surfactant concentration. Lack may eventually lead to unregulated growth possibly loss their nanoscale properties. Here we report a gold nanoparticle (AuNPs)-based self-catalyzed self-limiting system that exploits the glucose oxidase-like catalytic activity AuNPs. We find AuNP-catalyzed oxidation in situ produces hydrogen peroxide (H2O2) induces AuNPs'...
N−F−codoped TiO2 (NFT) powders, prepared by spray pyrolysis (SP), were further characterized ultraviolet−visible (UV−Vis) absorption spectroscopy and photoluminescence (PL) spectra. The UV−Vis spectra indicated that the NFT powders could absorb not only ultraviolet light like pure powder but also part of visible-light spectrum (λ < 550 nm). PL provided confirmation four electronic energy states exist between valence band conduction attributed to F center, F+ an origin-unidentified state,...
A fluorescence sensor for Ag(I) ions is developed based on the target-induced conformational change of a silver-specific cytosine-rich oligonucleotide (SSO) and interactions between fluorogenic SSO probe graphene oxide.
We report a highly sensitive electrochemical sensor for the detection of Hg2+ ions in aqueous solution by using thymine (T)-rich, mercury-specific oligonucleotide (MSO) probe and gold nanoparticles (Au NPs)-based signal amplification. The MSO contains seven bases at both ends "mute" spacer middle, which, presence Hg2+, forms hairpin structure via Hg2+-mediated coordination T−Hg2+−T base pairs. thiolated is immobilized on Au electrodes to capture free media, MSO-bound can be electrochemically...
Carbon dots that exhibit near-infrared fluorescence (NIR CDs) are considered emerging nanomaterials for advanced biomedical applications with low toxicity and superior photostability targeting compared to currently used photoluminescence agents. Despite progress in the synthesis of NIR CDs, there remains a key obstacle using them as an vivo theranostic agent. This work demonstrates newly developed sulfur nitrogen codoped CDs highly efficient photothermal therapy (PTT) mouse models...
DNA hybridization can finely regulate the intrinsic glucose oxidase like catalytic activity of AuNPs owing to marked difference in adsorption single- and double-stranded on its surface. A sensing strategy for microRNA is presented; a different approach, this DNA-regulated AuNP catalysis was coupled with AuNP-mediated seed growth, which monitored real time at single-nanoparticle level. Detailed facts importance specialist readers are published as "Supporting Information". Such documents...
ADVERTISEMENT RETURN TO ISSUEPREVCommunicationNEXTAmplified Analysis of Low-Molecular-Weight Substrates or Proteins by the Self-Assembly DNAzyme−Aptamer ConjugatesDi Li, Bella Shlyahovsky, Johann Elbaz, and Itamar WillnerView Author Information Institute Chemistry, The Hebrew University Jerusalem, Jerusalem 91904, Israel Cite this: J. Am. Chem. Soc. 2007, 129, 18, 5804–5805Publication Date (Web):April 14, 2007Publication History Received10 January 2007Published online14 April inissue 1 May...
First-principles density functional theory incorporating the LDA + U formalism has been used to investigate origin of photocatalytic activation Ag3PO4. The approach provides an improved band gap and position valence if both Up Ud are used. Through examining energy structure states, we can understand why Ag3PO4 is a promising photocatalyst for oxidizing water as well degrading organic contaminants. results show that large dispersion conduction inductive effect PO43−, which help separation...
Aggregation-induced luminescence quenching of carbon dots (CDots) is the main obstacle for their applications in solid state. Herein, we report a method to produce strongly luminescent CDots@silica composite gels with highly concentrated emitting centers, where gelation tetraethyl orthosilicate initiated by surface hydroxyl groups CDots. The key feature this approach prevent both collision between high CDots gelating solution and aggregation upon drying. resultant xerogel exhibits loading...
Silicon nanowires (SiNWs), as a novel one-dimensional semiconducting nanomaterial, are attracting increasing interest in recent years. The synthesis of SiNWs with situ grown silver nanoparticles (AgNPs) (SiNWs@AgNPs) is reported and the highly effective long-term antibacterial activity this nanostructure demonstrated (see Fig.). Detailed facts importance to specialist readers published "Supporting Information". Such documents peer-reviewed, but not copy-edited or typeset. They made available...
Self-assembled DNA origami nanostructures have shown great promise for bottom-up construction of complex objects with nanoscale addressability. Here we show that origami-based 1D nanoribbons and nanotubes are one-pot assembled controllable sizes addressability high speed (within only 10–20 min), exhibiting extraordinarily cooperativity is often observed in assembly natural molecular machines cells (e.g. ribosome). By exploiting the specificity DNA-based self-assembly, can precisely anchor...