相关实验视频

Updated: Jun 1, 2025

A Microfluidic-based Electrochemical Biochip for Label-free DNA Hybridization Analysis

A Microfluidic-based Electrochemical Biochip for Label-free DNA Hybridization Analysis

Published on: September 10, 2014

基于DNA四面体门纳米通道的微RNA检测的双模式生物传感器

Yuan Su¹, Ziyu Zhang¹, Hongfang Zhang²

¹Key Laboratory of Synthetic and Natural Functional Molecule, College of Chemistry and Materials Science, Northwest University, Xi'an, 710127, People's Republic of China.

Mikrochimica acta

|January 18, 2025

概括

这项研究引入了一种用于检测微RNA-31 (MiR-31) 的新型生物传感器,该生物传感器使用阳极氧化纳米通道检测微RNA-31 (MiR-31). 生物传感器提供视觉和电化学检测,对潜在的癌症诊断具有高灵敏度.

科学领域:

* 纳米材料科学科学纳米材料科学
* 生物传感器技术
* 分子诊断学分子诊断学

背景情况:

*MicroRNA-31 (MiR-31) 是一种涉及口腔状细胞癌的生物标志物.
*敏感和特定的检测方法对于早期癌症诊断至关重要.
*现有的检测方法可能缺乏临床应用所需的灵敏度或双模式功能.

研究的目的:

* 开发一种双模式生物传感器,用于敏感检测微RNA-31 (MiR-31).
* 为了利用氧化物 (AAO) 纳米通道与二硫化物 (MoS2) 纳米片功能化.
* 为了实现MiR-31的肉眼和电化学检测.

主要方法:

*使用涂有MoS2纳米薄膜的AAO膜制造生物传感器.
* 设计一个DNA四面体纳米结构探测器,该探测器具有与MiR-31的特定结合.
* 采用半导体介导反应用于不溶性沉积和氧化还原指标的封闭.
* 整合视觉色度和电化学测量,用于双模式检测.

主要成果:

* 达到了0.06 fM的米R-31.1的低检测极限.
* 证明成功的双模式检测 (色度测量和电化学).
* 生物传感器表现出良好的特异性,可重复性和稳定性.

结论:

*开发的基于MoS2/AAO的生物传感器为MiR-31检测提供了灵敏可靠的平台.
*双模式检测可以提高诊断能力和可访问性.
* 这种生物传感器对口腔状细胞癌的早期诊断和其他生物应用具有显著的潜力.

关键词:

这就是DNAzyme DNA酶.微分脉冲电压测量微分脉冲电压测量电化学生物传感器这是一个微型RNA.纳米通道的使用方法视觉检测视觉检测是一种视觉检测.

更多相关视频

Author Spotlight: Advancements in DNA Nanosensors – Addressing Sensitivity and Selectivity Challenges in Molecular Detection

Author Spotlight: Advancements in DNA Nanosensors – Addressing Sensitivity and Selectivity Challenges in Molecular Detection

Published on: February 9, 2024

Preparation of Multifunctional Silk-Based Microcapsules Loaded with DNA Plasmids Encoding RNA Aptamers and Riboswitches

Preparation of Multifunctional Silk-Based Microcapsules Loaded with DNA Plasmids Encoding RNA Aptamers and Riboswitches

Published on: October 8, 2021

相关概念视频

DNA Microarrays

DNA Microarrays

Microarrays are high-throughput and relatively inexpensive assays that can be automated to analyze large quantities of data at a time. They are used in genome-wide studies to compare gene or protein expression under two varied conditions, such as healthy and diseased states. Microarrays consist of glass or silica slides on which probe molecules are covalently attached through surface functionalization. Most commonly, the slides are prepared through the chemisorption of silanes to silica...