Jianmei Li

ORCID: 0000-0001-8601-2798
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About
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Research Areas
  • Crystallization and Solubility Studies
  • X-ray Diffraction in Crystallography
  • Carbohydrate Chemistry and Synthesis
  • Plant-Derived Bioactive Compounds
  • Crystallography and molecular interactions
  • Analytical Chemistry and Chromatography
  • Fullerene Chemistry and Applications
  • Biological Stains and Phytochemicals
  • Plant Disease Resistance and Genetics
  • Energy, Environment, Economic Growth
  • Botanical Research and Applications
  • Carbon and Quantum Dots Applications
  • Electrodeposition and Electroless Coatings
  • Heavy Metals in Plants
  • Plant-Microbe Interactions and Immunity
  • Metal-Organic Frameworks: Synthesis and Applications
  • Environmental Impact and Sustainability
  • Nanomaterials for catalytic reactions
  • Graphene research and applications
  • Selenium in Biological Systems
  • Glycosylation and Glycoproteins Research
  • Hydrogen embrittlement and corrosion behaviors in metals
  • Nanocluster Synthesis and Applications
  • Carbon Nanotubes in Composites
  • Fungal Plant Pathogen Control

Chuzhou University
2024

Yunnan Normal University
2021-2024

Inner Mongolia Agricultural University
2023

Yunnan University
2023

Ningxia University
2023

China University of Petroleum, Beijing
2016

Beijing Institute of Technology
2013

Xiamen University
2009

Chinese University of Hong Kong
2004-2008

Potato early blight (PEB), a foliar disease of potato during the growing period, caused by Alternaria sp., is common in major potato-producing areas worldwide. Effective agents to control this or completely resistant varieties are absent. Large-scale use fungicides limited due possibility increase pathogen resistance and requirements ecological agriculture. In study, we focused on composition infection characteristics pathogens Yunnan Province screened candidate pathogenesis-related pathways...

10.3389/fmicb.2024.1357579 article EN cc-by Frontiers in Microbiology 2024-03-11

Aflatoxin B1 (AFB1) contamination in cereals and their products seriously concerns food safety human health. Herein, a nitrogen-doped carbon quantum dots (N-CQDs)-based fluorescent sensing platform was successfully developed for the sensitive rapid detection of AFB1 corn flour. In this work, using sodium citrate urea as precursors, hydrophilic N-CQDs were synthesized by one-step hydrothermal method with good biocompatibility high fluorescence stability. The as-prepared exhibited excitation...

10.1016/j.lwt.2023.115130 article EN cc-by-nc-nd LWT 2023-08-01

A pseudo-1,4′-N-linked disaccharide, pseudoacarviosin 5, was constructed via a key palladium-catalyzed coupling reaction of pseudoglycosyl chloride 8 (prepared from d-glucose novel direct intramolecular aldol addition in 12 steps) and pseudo-4-amino-4,6-dideoxy-α-d-glucose 9 l-arabinose an unusual trans-fused isoxazolidine-selective nitrone−alkene cycloaddition 11 steps). Pseudoacarviosin 5 has been shown to be potent inhibitor α-glucosidases, particularly the intestinal mucosal enzymes...

10.1021/ol8010503 article EN Organic Letters 2008-06-17

Storage years affected the quality of Pu'er raw tea. It is intensely difficult to distinguish through their appearance and odor. In this work, Fourier transform infrared spectroscopy (FTIR) combined with two-dimensional correlation (2D-COS), hierarchical cluster analysis (HCA), principal components (PCA) were employed tea different storage years. 2D-COS results revealed changes various in sample corresponding temperature perturbation interconnection between these obtained. PCA showed that...

10.1111/jfpp.16103 article EN Journal of Food Processing and Preservation 2021-10-25

This article describes an efficient synthesis of a potent trehalase inhibitor, 1,1'-N-linked pseudodisaccharide 1 (consisting two valienamines), in 14 steps with overall yield 12% and first 2 2-epi-valienamines) 15 24% from (−)-quinic acid. The involves stereospecific palladium-catalyzed coupling reaction between allylic amine chloride as the crucial step. acetonide blocking groups were shown to be best hydroxyl protecting groups, compatible amination that afforded high yields...

10.1021/ja0470158 article EN Journal of the American Chemical Society 2004-11-19

Pure non-IPR (isolated-pentagon-rule) C60 isomer has rarely been investigated experimentally. The recently reported availability of #1809C60Cl8 opens an avenue for experimental investigation #1809C60, a C2v-symmetric having two pairs fused pentagons. Herein, the experiments on #1809C60 were performed basis thermal dechlorination in solid state and gas phase. #1812C60Cl6 was employed comparative study. As determined by Raman other methods, from decomposition crystals readily coalesces to form...

10.1021/jp902325w article EN The Journal of Physical Chemistry C 2009-09-08

A combination of cyclic voltammetry, electrochemical impedance spectroscopy, and chronoamperometry techniques has been used to study the underpotential deposition (UPD) copper on polycrystalline gold (pc Au) electrodes. The experiments were conducted in an electrolyte composed CuSO4 (5 mM) H2SO4 (0.5 M). results revealed that concentration (II) ions applied voltage exerted a synergistic effect position, shape, range spanning curves describing redox potential current density. charge transfer...

10.1016/j.ijoes.2023.100317 article EN cc-by-nc-nd International Journal of Electrochemical Science 2023-08-15

Nine new clerodane-type diterpenoids (1-9), named caseabalanspenes A-I, along with six know compounds (10-15), were isolated from the twigs and leaves of Casaeria balansea. Spectroscopic data (1D 2D NMR) analysis permitted definition their structures then determination molecular formula compound by high resolution mass spectrometry (HR-ESI-MS). It is worth noting that 7 contains N- heterocycle. Compounds 1–8 tested anti-inflammasome activity, 3 exhibited potent activity decreased LDH level...

10.2139/ssrn.4484092 preprint EN 2023-01-01
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