Shengda Qi

ORCID: 0000-0003-2511-4330
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About
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Research Areas
  • Microfluidic and Capillary Electrophoresis Applications
  • Nanocluster Synthesis and Applications
  • Advanced biosensing and bioanalysis techniques
  • Advanced Nanomaterials in Catalysis
  • Analytical Chemistry and Chromatography
  • Electrochemical sensors and biosensors
  • Electrochemical Analysis and Applications
  • Carbon and Quantum Dots Applications
  • Protein Interaction Studies and Fluorescence Analysis
  • Gold and Silver Nanoparticles Synthesis and Applications
  • Metal-Organic Frameworks: Synthesis and Applications
  • Quantum Dots Synthesis And Properties
  • Analytical Chemistry and Sensors
  • Biosensors and Analytical Detection
  • Plant-based Medicinal Research
  • Covalent Organic Framework Applications
  • Luminescence and Fluorescent Materials
  • Chalcogenide Semiconductor Thin Films
  • Molecular Sensors and Ion Detection
  • Advanced Chemical Sensor Technologies
  • Chromatography in Natural Products
  • Nanomaterials for catalytic reactions
  • Nanopore and Nanochannel Transport Studies
  • Microfluidic and Bio-sensing Technologies
  • Traditional Chinese Medicine Analysis

Lanzhou University
2015-2025

State Key Laboratory of Applied Organic Chemistry
2016-2023

Lanzhou City University
2015-2021

State Council of the People's Republic of China
2020

Lanzhou Nonferrous Metals Design and Research Institute (China)
2014

Ames National Laboratory
2012

Iowa State University
2011-2012

United States Department of Energy
2012

Hong Kong Baptist University
2009-2010

Jinchuan (China)
2009

Carbon quantum dots (C-Dots) have drawn extensive attention in recent years due to their stable physicochemical and photochemical properties. However, the development of nitrogen-doped carbon (N-doped C-Dots) is still on its early stage. In this paper, a facile high-output solid-phase synthesis approach was proposed for fabrication N-doped, highly fluorescent dots. The obtained N-doped C-Dots exhibited strong blue emission with an absolute yield (QY) up 31%, owing fluorescence enhancement...

10.1021/ac502446m article EN Analytical Chemistry 2014-09-23

Recently, the development of new fluorescent probes for ratiometric detection target objects inside living cells has received great attention. Normally, preparation, modification as well conjugation procedures these are complicated. On this basis, efforts have been paid to establish convenient method preparation dual emissive nanosensor. In work, a functional carbon dots (dCDs) was prepared by one-pot hydrothermal carbonization method. The dCDs exhibits two distinctive fluorescence emission...

10.1021/acs.analchem.7b04211 article EN Analytical Chemistry 2017-11-16

Designing advanced stationary phases to improve separation efficiency is essential in capillary electrochromatography. Due their outstanding performance, covalent organic frameworks have recently demonstrated considerable promise the field of science. Herein, an open-tubular electrochromatography method was reported using porous imine-based framework with sufficiently available interaction sites as phase. The coated easily prepared via situ growth at room temperature, and its performance...

10.1002/jssc.202300686 article EN Journal of Separation Science 2024-01-01

Because of the unusual properties structure, metal organic frameworks (MOFs) have received great interest in separation science. However, most existing methods for applications MOFs science require an off-line procedure to prepare materials. Here, we report situ, layer-by-layer self-assembly approach fabricate MIL-100(Fe) coated open tubular (OT) capillary columns electrochromatography. By a controllable manner, OT with tailored coating been successfully synthesized. The results SEM, XRD,...

10.1021/ac402254u article EN Analytical Chemistry 2013-11-04

Separation and recycling of catalysts after catalytic reactions are critically required to reduce the cost as well avoid generation waste in industrial applications. In this paper, ultrafine noble metallic nanoparticles incorporated into cauliflower-like porous magnetic metal–organic frameworks (MOFs). With restriction effects pore/surface structure MOFs, "surfactant-free" successfully obtained on a 2–3 nm scale. addition, both thickness MOFs shell content NPs tunable coating. Moreover,...

10.1039/c4cy00072b article EN Catalysis Science & Technology 2014-04-16

Metal-organic framework materials are a class of novel crystalline porous with regular pore structures formed by covalent bonding between metal centers and organic functional groups. have attracted great interest in analytical chemistry due to their unique properties such as good stability permanent porosity. In this work, D-histidine was used carry out chiral modification zeolitic imidazolate framework-90 under mild conditions, the modified coated capillary column prepared. This separate...

10.1002/jssc.202200836 article EN Journal of Separation Science 2023-04-13

A ratiometric fluorescent probe was developed in the present work, which aggregation induced emission (AIE) behavior of glutathione stabilized gold nanoclusters (GSH-AuNCs) triggered by silver (Ag+) ions were used for first time analysis gatifloxacin. The GSH-AuNCs fluorescence intensity enhanced with introduction Ag+ into GSH-AuNCs. orange increased when concentration increased. intrinsic gatifloxacin (GAT) but Ag+/GSH-AuNCs not altered addition Ag+/GSH-AuNCs. ratio these dual signal...

10.2139/ssrn.5084920 preprint EN 2025-01-01

Background: L-cysteine (L-Cys) and homocysteine (Hcy) are the most representative of biothiol, which exist widely in organisms. L-Cys is one essential amino acids, can be absorbed from protein-rich food plays a considerable role various physiological processes. Hcy vital intermediate normal mammalian metabolism methionine but does not occur diet. Therefore, it significant to exploit rapid sensitive strategy measure Hcy. Methods: Herein, we designed an “on-on” fluorescent platform for...

10.2174/0115734110346349241208043105 article EN Current Analytical Chemistry 2025-01-15

Abstract Considering the high energy consumption problem in conventional distillation separation of traditional process for preparing 3-methylpyridine by hydrogenation 2-methylglutaronitrile, this paper proposes a new purification using dividing wall column. Under premise meeting product purity, with equipment as optimization target, employs Aspen Plus V14.0 software to simulate and optimize continuous column process. The simulation results show that compared process, can save 21.02%...

10.1088/1742-6596/3011/1/012051 article EN Journal of Physics Conference Series 2025-05-01

Sensitive detection of a low abundant protein is essential for biomedical research and clinical diagnostics.

10.1039/c7an00541e article EN The Analyst 2017-01-01

In this work, a simple and sensitive method based on the inner filter effect (IFE) of <italic>p</italic>-nitrophenol (PNP) fluorescence gold nanoclusters (AuNCs) has been developed for detecting alkaline phosphatase (ALP) activity.

10.1039/d0an00052c article EN The Analyst 2020-01-01

Abstract A novel and very simple capillary electrophoretic method for analyzing aconitine components in Aconitum plants was developed using 1‐butyl‐3‐methylimidazoium tetrafluoroborate (1B‐3MI‐TFB)‐based ionic liquid as running electrolyte solution the first time. The optimum conditions were 35 m M 1B‐3MI‐TFB (pH 8.50) 15 kV applied voltage. detection performed at 254 nm. Aconitine, meaconitine hypaconitine separated identified within 5 min. recoveries 91.0–103.0% hypaconitine, 92.8–96.2%...

10.1002/bmc.562 article EN Biomedical Chromatography 2005-09-01
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