相关实验视频

Updated: Jul 3, 2025

Bergmeyer Glucose Quantification for Microbiological Samples

Bergmeyer Glucose Quantification for Microbiological Samples

Published on: January 17, 2025

作为过氧化酶模拟剂的Fe-codoped碳点在现场产生过氧化,用于可视检测葡萄糖

Sijia Xie^1,2, Yating Zeng², Jinfu Li¹

¹Guangdong Provincial Key Laboratory of Pharmaceutical Bioactive Substances, School of Basic Medical Sciences, Guangdong Pharmaceutical University, Guangzhou, People's Republic of China.

Analytical and bioanalytical chemistry

|February 16, 2024

概括

基于铁的碳点 (Fe-CDs) 作为有效的过氧化酶模仿剂,表现出对过氧化 (H2O2) 的增强亲和力. 这种纳米酶技术能够在生物样本中对葡萄糖进行敏感的视觉检测.

科学领域:

纳米技术纳米技术
生物医学工程生物医学工程
分析化学分析化学

背景情况:

纳米酶技术在传感,生物医学和环境监测方面提供了多方面的应用.
酶模仿对于开发具有成本效益和稳定的诊断工具至关重要.

研究的目的:

合成和表征基于铁的碳点 (Fe-CDs) 作为过氧化酶模仿剂.
开发一种混合级联系统 (Fe-CDs/GOx),用于敏感的葡萄糖检测.
评估Fe-CDs/GOx在检测过氧化 (H2O2) 和葡萄糖方面的性能.

主要方法:

Fe-CDs的合成和表征.
稳定状态动力学测试以确定相亲力和催化能力,与胡卜过氧化酶 (HRP) 相比.
开发一种混合级联系统,用于在现场生成H2O2和视觉检测葡萄糖.
对H2O2和葡萄糖的检测极限 (LOD) 确定.
使用人类血清样本进行验证.

主要成果:

Fe-CDs对H2O2 (0.2mM) 的亲和力比HRP (3.7mM) 高,具有更强的催化活性.
Fe-CDs/GOx系统实现了H2O2的LOD为0.33μM,葡萄糖的LOD为1.17μM.
在特定范围内观察到吸收率和分析物度之间的线性关系.
该系统在真实的人类血清样本中显示了准确的检测能力.

结论:

Fe-CDs作为高效的过氧化酶模仿剂,在纳米酶应用中具有显著的潜力.
开发的Fe-CDs/GOx混合系统为葡萄糖检测提供了一种敏感和可视的方法.
这项技术对各种生物医学和传感应用具有前景.

关键词:

在Fe-CDs中,我们可以使用Fe-CD.葡萄糖检测检测方法葡萄糖检测方法过氧化是一种过氧化.纳米酶可以模仿纳米酶.过氧化酶的使用

更多相关视频

Dry Film Photoresist-based Electrochemical Microfluidic Biosensor Platform: Device Fabrication, On-chip Assay Preparation, and System Operation

Dry Film Photoresist-based Electrochemical Microfluidic Biosensor Platform: Device Fabrication, On-chip Assay Preparation, and System Operation

Published on: September 19, 2017

Detection of Total Reactive Oxygen Species in Adherent Cells by 2',7'-Dichlorodihydrofluorescein Diacetate Staining

Detection of Total Reactive Oxygen Species in Adherent Cells by 2',7'-Dichlorodihydrofluorescein Diacetate Staining

Published on: June 23, 2020

相关概念视频

Amperometry: Overview

Amperometry: Overview

Amperometry is a technique commonly used to measure the concentration of specific analytes in a solution by monitoring the electric current generated during an electrochemical reaction. It involves applying a constant potential between a working electrode and a reference electrode to measure the resulting current, which is proportional to the concentration of the analyte. The Clark oxygen electrode operates based on this principle of amperometry. It consists of a cathode and an anode enclosed...

Labeling DNA Probes

Labeling DNA Probes

DNA probes are fragments of DNA labeled with a reporter tag to enable their detection or purification. The resulting labeled DNA probes can then hybridize to target nucleic acid sequences through complementary base-pairing, and may be used to recover or identify these regions.
Radioisotopes, fluorophores, or small molecule binding partners like biotin or digoxigenin, are the most widely used reporter tags for labeling DNA probes. These labels can be attached to the probe DNA molecule via...