Yanqin Zhu

ORCID: 0000-0002-8257-6147
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About
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Research Areas
  • Moringa oleifera research and applications
  • Electrochemical sensors and biosensors
  • Carbon and Quantum Dots Applications
  • Analytical chemistry methods development
  • Advanced Nanomaterials in Catalysis
  • Heavy Metals in Plants
  • bioluminescence and chemiluminescence research
  • Electrochemical Analysis and Applications
  • Asymmetric Hydrogenation and Catalysis
  • Surface Chemistry and Catalysis
  • Traditional Chinese Medicine Analysis
  • Catalysis for Biomass Conversion
  • Metabolomics and Mass Spectrometry Studies
  • Adsorption and biosorption for pollutant removal
  • RNA Research and Splicing
  • Tea Polyphenols and Effects
  • RNA regulation and disease
  • Neurogenesis and neuroplasticity mechanisms
  • Polysaccharides and Plant Cell Walls
  • Zebrafish Biomedical Research Applications
  • Nanocluster Synthesis and Applications
  • Nuclear Structure and Function
  • Ginseng Biological Effects and Applications
  • Axon Guidance and Neuronal Signaling
  • Redox biology and oxidative stress

Xiamen University
2023-2025

Kunming University of Science and Technology
2013-2024

Kunming University
2021

Analysis and Testing Centre
2020

In this study, we develop and validate a simultaneous quantification of polyphenols method based on an ultra-performance liquid chromatography-electrospray ionization-tandem mass spectrometry (UPLC-ESI-MS/MS) to adequately understand how different habitats influence the quality profile Moringa oleifera polyphenol. Furthermore, principal component analysis (PCA) hierarchical cluster (HCA) were used compare discriminate 25 samples collected from areas. A significant correlation was found...

10.3390/molecules25030676 article EN cc-by Molecules 2020-02-05

Abstract This study reports a sensitive and selective colorimetric approach for the analysis of dopamine (DA) based on CeO 2 @ZIF‐8/Cu‐CDs laccase‐like nanozymes activity. The was synthesized using cerium oxide (CeO ) copper‐doped carbon dots (Cu‐CDs) with 2‐methylimidazole by facilely hydrothermal approach. exhibited excellent activity can oxidize colorless substrate to red product 4‐aminoantipyrine as chromogenic agent. Michaelis–Menten constant ( K m maximal velocity V max are 0.20 mM...

10.1002/bio.4684 article EN Luminescence 2024-01-31

A schematic illustrating the synthesis and morphine detection of N,Cl-CDs.

10.1039/d1ra00886b article EN cc-by-nc RSC Advances 2021-01-01

Schwann cells play critical roles in peripheral neuropathies; however, the regulatory mechanisms of their homeostasis remain largely unknown. Here, we show that nucleoporin Seh1, a component nuclear pore complex, is important for cell homeostasis. Expression Seh1 decreases as mice age. Loss leads to activated immune responses and necroptosis. Mice with depletion lineage develop progressive reduction sciatic nerves, predominantly non-myelinating cells, followed by neural fiber degeneration...

10.1016/j.celrep.2023.112802 article EN cc-by Cell Reports 2023-07-01

In spite of recent advances in understanding the mechanism coelenterate bioluminescence, there is no consensus about which coelenteramide specie and/or state are light emitter. this study, a systematic investigation geometries and spectra all possible emitters has been performed at TD ωB97XD/6-31+G(d) level theory, including various fluorescent chemiluminescent states vacuum, hydrophobic environment aqueous solution. To deduce most probable form emitter, equilibrium constants for connecting...

10.1002/cphc.201600850 article EN ChemPhysChem 2016-11-02

Water-dispersible and self-stabilized conductive polyaminoanthraquinone nanofibirls synthesized<italic>via</italic>interfacial polymerization showed high adsorption capacities toward toxic lead.

10.1039/c4ra07423h article EN RSC Advances 2014-01-01

Herein, a novel nitr[ogen-doped carbon dot (N-CD) fluorescence sensor with dual emission ratio is developed using the microwave-assisted synthesis of m-phenylenediamine and spermidine. As result inner filtration effect (IFE) between morphine (MOR) N-CD, blue N-CDs at 350 nm was reduced in presence MOR, whereas 456 increased substantially. The results demonstrated that approach has tremendous potential linear range MOR detection 0.25-25 µg/mL, 71.8 ng/mL limit. Under UV light, fluorescent...

10.3390/bios13010143 article EN cc-by Biosensors 2023-01-15

In the present study, a modified QuEChERS (quick, easy, cheap, effective, rugged, and safe) method was proposed for simultaneous analysis of 75 pesticides in maca Moringa oleifera with ultra-performance liquid chromatography-electrospray ionization-tandem mass spectrometry (UPLC-ESI-MS/MS). The developed validated accordance linearity, linear range, limit detection, quantification, accuracy, precision, matrix effect. Each analyte had good linearity (R 2 > 0.99) corresponding concentration...

10.1039/d0ra06375d article EN cc-by-nc RSC Advances 2020-01-01

Purpose: To develop, validate and compare two chromatographic methods - high performance liquid chromatography with diode array detector ((HPLC-DAD) ultraviolet detection (UPLC-UV) for the effective analysis of polyphenols in Moringa oleifera leaves.Methods: HPLC-DAD UPLC-UV were applied accurate determination eleven major leaves. The conditions was determined on C18 column by gradient elution 0.5 % phosphoric acid solution -acetonitrile as eluate, at a flow rate 1.0 mL/min methods,...

10.4314/tjpr.v20i11.20 article EN cc-by Tropical Journal of Pharmaceutical Research 2021-12-13

Novel magnetic solid-phase extraction using carboxylated multiwalled carbon nanotubes was proposed with ultra high-performance liquid chromatography–tandem mass spectrometry for the determination of silodosin in biological samples. The effects various experimental parameters including adsorbent amount, pH, adsorption time, desorption conditions, and reusability were systematically validated. Under optimized calibration curve linear within concentration range 1.0–800 ng mL −1 correlation...

10.1556/1326.2016.00150 article EN Acta Chromatographica 2017-03-21

A fingerprint analysis method was established for the quality control of Moringa seed shells by high-performance liquid chromatography with diode array detection (HPLC–DAD). The HPLC–DAD separation performed on a Thermo Hypersil Gold C18 (4.6 mm × 250 mm, 5 μm) column gradient elution acetonitrile–water as mobile phase. good precision, reproducibility, and stability obtaining within 60 min, 13 common peaks in were designed. Similarity analysis, principal component (PCA), hierarchical...

10.1556/1326.2019.00545 article EN Acta Chromatographica 2019-03-04

A fingerprint analysis method was developed for the quality control of Salvia yunnanensis roots by HPLC. The HPLC separation performed on a Hypersil ODS (4.6 mm × 250 mm, 5 μm) column gradient elution with acetonitrile–water as mobile phase, at temperature 30 °C and flow rate 1.0 mL min−1. satisfactory 21 common peaks achieved within 60 min. Similarity evaluation professional software named Evaluation System Chromatographic Fingerprint Traditional Chinese Medicine, similarity among 11...

10.1039/c4ay00562g article EN Analytical Methods 2014-05-28

Oleic acid modified Fe 3 O 4 nanoparticles were proposed for magnetic solid-phase extraction coupled with ultra high-performance liquid chromatography-tandem mass spectrometry to determine risperidone (RISP) and 9-hydroxyrisperidone (9OHR) in biological samples.The effects of various experimental parameters including adsorbent amount, pH, adsorption time, eluent type concentration systematically investigated.Under optimal conditions, the calibration curve was linear within range 0.2-200 ng...

10.21577/0103-5053.20170016 article EN cc-by Journal of the Brazilian Chemical Society 2017-01-01

An effective, reliable, and sensitive reversed-phase high-performance liquid chromatography (RP-HPLC) with diode array detector (DAD) method was investigated for simultaneous determination of polydatin, isoquercitrin, resveratrol, nicotiflorin in Tetrastigma hemsleyanum . The chromatographic separation the four compounds carried out on a Welchrom ODS column (4.6 mm × 250 mm, 5 μm) by gradient elution phosphoric acid (H 3 PO 4 ) aqueous solution (0.4%)–methanol as mobile phase, at temperature...

10.1556/1326.2017.00231 article EN Acta Chromatographica 2017-07-18
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