A5091199854- Crystallization and Solubility Studies
- X-ray Diffraction in Crystallography
- Supramolecular Self-Assembly in Materials
- Advanced biosensing and bioanalysis techniques
- Advanced Nanomaterials in Catalysis
- Particle accelerators and beam dynamics
- Crystallography and molecular interactions
- Electrochemical sensors and biosensors
- Molecular Sensors and Ion Detection
- Particle Accelerators and Free-Electron Lasers
- Magnetism in coordination complexes
- Polydiacetylene-based materials and applications
- Gyrotron and Vacuum Electronics Research
- Remote Sensing and Land Use
- Carbon and Quantum Dots Applications
- Lanthanide and Transition Metal Complexes
- Sulfur Compounds in Biology
- Chemical Synthesis and Analysis
- Supramolecular Chemistry and Complexes
- Biosensors and Analytical Detection
- Automated Road and Building Extraction
- Luminescence and Fluorescent Materials
- Plant Stress Responses and Tolerance
- Satellite Image Processing and Photogrammetry
- Luminescence Properties of Advanced Materials
Yanbian University
2024-2025
University of Chinese Academy of Sciences
2015-2025
Chinese Academy of Sciences
2012-2025
China National Botanical Garden
2024-2025
Anhui University
2025
Institute of Botany
2024-2025
Beijing Botanical Garden
2024-2025
Jilin University
2012-2024
Fuzhou University
2024
Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou)
2023-2024
Abstract Although helical nanofibrous structures have great influence on cell adhesion, the role played by chiral molecules in these cells behavior has usually been ignored. The chirality of nanofibers is inverted odd–even effect methylene units from homochiral l ‐phenylalanine derivative during assembly. An increase adhesion left‐handed and weak behaviors right‐handed are observed, even though both were derived derivatives. Weak negative influences was also observed for left‐ d...
Biogenesis and tissue development are based on the heterogenesis of multipotent stem cells. However, underlying mechanisms cell fate specification unclear. Chirality is one most crucial factors that affects implicated in asymmetrical morphology formation; however, its function heterogeneous determination remains elusive. In this study, it reported chirality a constructed 3D extracellular matrix (ECM) differentiates mesenchymal cells to diverse lineages osteogenic adipogenic by providing...
Efficient and divergent one-pot synthesis of fully substituted 1H-pyrazoles isoxazoles from cyclopropyl oximes based on reaction conditions selection is reported. Under Vilsmeier (POCl3/DMF), were synthesized 1-carbamoyl, 1-oximyl cyclopropanes via sequential ring-opening, chlorovinylation, intramolecular aza-cyclization. In the presence POCl3/CH2Cl2, obtained ring-opening nucleophilic vinylic substitution (SNV) reactions.
The influence of chirality on cell behavior is closely related with relevant biological events; however, many recent studies only focus the apparent chiral supramolecular nanofibers and ignore respective effects molecular in processes. Herein, inherent spreading differentiation are studied. Left-handed (referring to chirality) assembled from l-amino acid derivatives can enhance proliferation compared flat l-surfaces chirality). However, d-surfaces chirality), right-handed derived d-amino...
Achiral bipyridines can co-assemble with<sc>l</sc>-phenylalanine derivatives into unexpected right-handed helical nanostructures rather than left-handed helix by utilizing intermolecular hydrogen bonding formed between pyridyl and carboxylic groups.
Transfer and inversion of supramolecular chirality from chiral calix[4]arene analogs (3D 3L) with an alanine moiety to achiral bipyridine derivative (1) glycine moieties in a coassembled hydrogel are demonstrated. Molecular 3D 3L could transfer 1. Moreover, addition 0.6 equiv or 1 induced More interestingly, the 2D-sheet structure hydrogels formed 0.2 changed rolled-up tubular presence 3L. The morphology change mainly mediated by intermolecular hydrogen-bonding interactions between...
Open AccessCCS ChemistryRESEARCH ARTICLE1 Apr 2022An Ultrastable π–π Stacked Porous Organic Molecular Framework as a Crystalline Sponge for Rapid Structure Determination Cheng Chen, Zhengyi Di, Hao Li, Jinying Liu, Mingyan Wu and Maochun Hong Chen State Key Lab of Chemistry, Fujian Institute Research on the Matter, Chinese Academy Sciences, Fuzhou 350002 Science Technology Innovation Laboratory Optoelectronic Information China, 350108 , Di Li Liu *Corresponding author: E-mail Address: [email...
Novel tissue engineering scaffold materials of nano-hydroxyapatite (nHA)/silk fibroin (SF) biocomposite were prepared by freeze-drying. The needle-like nHA crystals about 10 nm in diameter 50-80 length, which uniformly distributed the porous nHA/SF scaffolds, a co-precipitation method with size. as-prepared scaffolds showed good homogeneity, interconnected pores and high porosity. XRD FT-IR analysis suggested that silk was beta-sheet structure, usually provides outstanding mechanical...
A convenient and efficient synthesis of spiro-fused pyrazolin-5-one N-oxides starting from readily available 1-carbamoyl-1-oximylcycloalkanes is developed. This general protocol features a novel facile way for access to the five-membered azaheterocycles by formation new N−N single bond. The key cyclization step utilizes an N-oxonitrenium intermediate, mediated hypervalent iodine reagent PIFA, its subsequent intramolecular trapping amide moiety under rather mild experimental conditions.
Metal-catalyzed direct C(sp(3))-H bond amination of 2-alkyl azaarenes with N=N double bonds has been developed, which expands the scope activation reactions and provides a new access to medicinally important azaarene derivatives.
We demonstrated the morphology transformation of co-assemblies based on terpyridine-based ligands (1R and 1S) possessing R- or S-alanine analogues their platinum(II) complex (2R-Pt 2S-Pt). The right-handed helical ribbon co-assembly formed with 0.5 equivalents 2R-Pt to 1R was converted into left-handed 0.6 2R-Pt. structure became a tubular in presence 0.8-1.0 via inversion at supramolecular level due an orientation change amide groups caused by non-covalent Pt⋅⋅⋅Pt interactions between...
The physiological chirality of extracellular environments is substantially affected by pathological diseases. However, how this stereochemical variation drives host immunity remains poorly understood. Here, it reported that pathology-mimetic M-nanofibrils-but not physiology-mimetic P-nanofibrils-act as a defense mechanism helps to restore tissue homeostasis manipulating immunological response. Quantitative multi-omics in vivo and vitro shows M-nanofibrils significantly inhibit inflammation...
Chiral acyclonucleosides were synthesized by an organocatalytic asymmetric aza-Michael addition reaction from achiral purine bases and α,β-unsaturated aldehydes in 82–89 % yield up to 99 ee. The isolated chiral are readily converted acyclonucleotides. Detailed facts of importance specialist readers published as "Supporting Information". Such documents peer-reviewed, but not copy-edited or typeset. They made available submitted the authors. Please note: publisher is responsible for content...
By optimizing phenyl selenide-based BODIPYs, probe BDP-Se-MOS for detecting Cys was obtained. It could not only discriminate between normal and cancer cells, but also image in tumor-bearing mice as well the fluctuations of DILI model.
Abstract Accurate building extraction is crucial for urban understanding, but it often requires a substantial number of samples. While some datasets are available model training, there remains lack high-quality covering and rural areas in China. To fill this gap, study creates high-resolution GaoFen-7 (GF-7) Building dataset utilizing the Chinese GF-7 imagery from six cities. The comprises 5,175 pairs 512 × image tiles, 573.17 km 2 . It contains 170,015 buildings, with 84.8% buildings 15.2%...
Abstract CONSTITUTIVE PHOTOMORPHOGENIC 1 (COP1), a pivotal repressor in plant photomorphogenesis, has been extensively studied various processes. However, the specific roles of COP1 fruit remain poorly understood. Here, we functionally characterized SlCOP1-1 (also known as LeCOP1), an Arabidopsis (Arabidopsis thaliana) ortholog, tomato (Solanum lycopersicum) ripening and disease resistance. Despite clear upregulation during ripening, knockout or overexpression (OE) tomatoes only minimally...