A5042178604- Crystallization and Solubility Studies
- X-ray Diffraction in Crystallography
- Quantum Dots Synthesis And Properties
- Cholangiocarcinoma and Gallbladder Cancer Studies
- Gold and Silver Nanoparticles Synthesis and Applications
- Advanced biosensing and bioanalysis techniques
- Pancreatic and Hepatic Oncology Research
- Nanocluster Synthesis and Applications
- Molecular Junctions and Nanostructures
- Gallbladder and Bile Duct Disorders
- Advanced Photocatalysis Techniques
- Luminescence and Fluorescent Materials
- Covalent Organic Framework Applications
- Surface Chemistry and Catalysis
- Cancer-related molecular mechanisms research
- Pancreatitis Pathology and Treatment
- Pancreatic function and diabetes
- Metal-Organic Frameworks: Synthesis and Applications
- Crystallography and molecular interactions
- Copper-based nanomaterials and applications
- Biliary and Gastrointestinal Fistulas
- Circular RNAs in diseases
- Pediatric Hepatobiliary Diseases and Treatments
- CO2 Reduction Techniques and Catalysts
- Graphene research and applications
Zhejiang A & F University
2022-2023
Nanjing Tech University
2022
National University of Singapore
2020-2022
ETH Zurich
2015-2022
Henry Royce Institute
2021-2022
University of Manchester
2021-2022
École Polytechnique Fédérale de Lausanne
2022
University of Zurich
2022
Peking University
2022
Anhui Provincial Hospital
2011-2021
To understand the interaction mechanism between graphene oxide (GO) and typical phytopathogens, a particular investigation was conducted about antimicrobial activity of GO against two bacterial pathogens (P. syringae X. campestris pv. undulosa) fungal (F. graminearum F. oxysporum). The results showed that had powerful effect on reproduction all four (killed nearly 90% bacteria repressed 80% macroconidia germination along with partial cell swelling lysis at 500 μg mL−1). A mutual is proposed...
Abstract A two‐dimensional covalent organic monolayer was synthesized from simple aromatic triamine and dialdehyde building blocks by dynamic imine chemistry at the air/water interface (Langmuir–Blodgett method). The obtained characterized optical microscopy, scanning electron atomic force which unambiguously confirmed formation of a large (millimeter range), unimolecularly thin polyimine sheet. imine‐linked chemical structure tip‐enhanced Raman spectroscopy, peak assignment supported...
Platinum nanotubes (PtNTs) exhibiting high porosity were constructed by sacrificing the exterior of tellurium nanowires (TeNWs) and disintegrating inner part spontaneously in aqueous solution at room temperature, which Kirkendall effect may play an important role. The present PtNTs exhibited intrinsic peroxidase-like activity presence H2O2.
Bright and stable CuInS2/ZnS@SiO2 nanoparticles with near-infrared (NIR) emission were competently prepared by incorporating the as-prepared hydrophobic CuInS2/ZnS quantum dots (QDs) directly into lipophilic silane micelles subsequently an exterior silica shell was formed. The obtained homogeneously comprised both single-core multicore remarkable QDs, while thickness could be controlled to within 5–10 nm their overall size 17–25 nm. Also, functionalized QDs encapsulated in spheres, expedited...
A three-dimensional (3D) biomimetic SERS substrate with hierarchical nanogaps was formed on the bioscaffold arrays of cicada wings by one-step and reagents-free ion-sputtering techniques. This approach requires a minimal fabrication effort cost offers Ag nanoislands nanoflowers four types (<10 nm) chitin nanopillars to generate high density hotspots (∼2000/μm2). The 3D shows low detection limit Rhodamine 6G (10(-13) M), average enhancement factor (EF, 5.8×10(7)), excellent signal uniformity...
Cellulose nanocrystals (CNCs) with >2000 photoactive groups on each can act as highly efficient initiators for radical polymerizations, cross-linkers, well covalently embedded nanofillers nanocomposite hydrogels. This is achieved by a simple and reliable method surface modification of CNCs bis(acyl)phosphane oxide derivative. Shape-persistent free-standing 3D structured objects were printed mono-functional methacrylate, showing superior swelling capacity improved mechanical properties.
Abstract A two‐dimensional covalent organic monolayer was synthesized from simple aromatic triamine and dialdehyde building blocks by dynamic imine chemistry at the air/water interface (Langmuir–Blodgett method). The obtained characterized optical microscopy, scanning electron atomic force which unambiguously confirmed formation of a large (millimeter range), unimolecularly thin polyimine sheet. imine‐linked chemical structure tip‐enhanced Raman spectroscopy, peak assignment supported...
Electrochemical reduction of CO
Nanoscale defects in monolayers (MLs) of two-dimensional (2D) materials, such as graphene, transition-metal dichalcogenides, and 2D polymers, can alter their physical, mechanical, optoelectronic, chemical properties. However, detailed information about nanodefects within covalent is difficult to obtain because it requires highly selective sensitive techniques that provide at the nanoscale. Here, we report a imine-linked ML prepared from two custom-designed building blocks by dynamic imine...
Abstract We have employed in situ electrochemical shell‐isolated nanoparticle‐enhanced Raman spectroscopy (SHINERS) and density functional theory (DFT) calculations to study the CO reduction reaction (CORR) on Cu single‐crystal surfaces under various conditions. Coadsorbed structure‐/potential‐dependent surface species, including *CO, Cu−O ad , Cu−OH were identified using isotope labeling. The relative abundance of *OH follows a “volcano” trend with applied potentials aqueous solutions,...
Triply amplified electrochemical biosensors have attracted particular attention in the detection of low-abundance biomarkers. The universal construction routes for nonenzymatic triply and even multiply are extremely desirable but remain challenging. Here, we proposed a "stretch-stowage-growth" strategy to tunably fabricate or electrochemiluminescence (ECL) immunosensor ultrasensitive determining pseudorabies virus (PrV) antibody. Based on matrix role gold nanoparticle-graphene nanosheet...
A well-defined crystalline cyano-functionalized graphdiyne (CN-GDY) is synthesized at a liquid/liquid interface through alkyne-alkyne coupling reactions. The configurations and nanostructures of CN-GDY were well characterized by TEM, SEM, AFM, XPS, Raman spectroscopy. HR-TEM selected area electron diffraction (SAED) in combination with structure simulation firmly revealed 9-fold stacking mode for CN-GDY.
Abstract Plasmon-induced chemical reactions (PICRs) have recently become promising approaches for highly efficient light-chemical energy conversion. However, an in-depth understanding of their mechanisms at the nanoscale still remains challenging. Here, we present in-situ investigation by tip-enhanced Raman spectroscopy (TERS) imaging plasmon-induced [4+4]-cycloaddition polymerization within anthracene-based monomer monolayers physisorbed on Au(111), and complement experimental results with...
Abstract This work describes a two‐dimensional polymerization at an air/water interface and provides, for the first time, direct spectroscopic evidence kind of crosslinks formed conversion reached in covalently bonded monolayer sheet. was obtained through combination variety characterization techniques before after transfer onto solid substrates, particular by tip‐enhanced Raman spectroscopy (TERS) TERS mapping both monomer polymer Au(111). is major advance field 2D polymers synthesized as...
Abstract We report an investigation of interfacial fluorinated hydrocarbon (carboxylic‐fantrip) monolayers by nanoscale imaging using tip‐enhanced Raman spectroscopy (TERS) and density functional theory (DFT) calculations. By comparing TERS images a sub‐monolayer prepared spin‐coating π–π‐stacked monolayer on Au(111) in which the molecular orientation is confined, specific peaks shift line widths narrow transferred LB monolayer. Based DFT calculations that take into account dispersion...
Open AccessCCS ChemistryCOMMUNICATION1 Apr 2021Direct Synthesis of Crystalline Graphtetrayne—A New Graphyne Allotrope Qingyan Pan, Siqi Chen, Chenyu Wu, Feng Shao, Jing Sun, Lishui Zhaohui Zhang, Yixiao Man, Zhibo Li, Lixia He and Yingjie Zhao Pan College Polymer Science Engineering, Qingdao University Technology, 266042 , Chen Wu The South Wales, Sydney, NSW 2052 Shao Department Chemistry, Faculty Science, National Singapore, Singapore 117543 Sun Zhang Man Li *Corresponding authors: E-mail...
An understanding of the photoisomerization mechanism molecules bound to a metal surface at molecular scale is required for designing photoswitches surfaces. It has remained challenge correlate structure and isomerization ambient conditions. Herein, self-assembled monolayer azobenzene-thiol on Au was investigated using scanning tunneling microscopy tip-enhanced Raman spectroscopy. The unique signature cis isomer 1525 cm-1 observed in spectra clearly distinct from trans isomer. Furthermore,...
A new electrochemical immunosensor based on solid-state voltammetry was fabricated for the detection of Escherichia coli (E. coli) by using graphene oxide–Ag nanoparticle composites (P-GO–Ag) as labels. To construct platform, Au nanoparticles (AuNPs) were first self-assembled an electrode surface through cysteamine and served effective matrix antibody (Ab) attachment. Under a sandwich-type immunoassay format, analyte probe (P-GO–Ag–Ab) successively captured onto immunosensor. Finally, bonded...