相关实验视频
Updated: Feb 10, 2026
20:16
Detecting Anastasis In Vivo by CaspaseTracker Biosensor
Published on: February 1, 2018
9.8K
全细胞微生物生物传感器用于检测持久性有机污染物
Chen Zhou1, Shuran Yang1, Zhenghui Lu1
1College of Life Sciences, Hubei University, Wuhan, 430062, China.
Talanta
|February 8, 2026
概括
全细胞生物传感器 (WCB) 提供了一种低成本的现场检测持久有机污染物 (POP) 的方法. 工程化WCB显示高灵敏度,可比或优于传统方法,用于监测环境污染物.
科学领域:
- 环境科学 环境科学
- 生物技术是生物技术.
- 分析化学 分析化学
背景情况:
- 持久性有机污染物 (POP) 构成全球环境和人类健康的重大风险.
- 传统的POP实验室监测方法往往是昂贵和耗时的.
- 全细胞生物传感器 (WCB) 是一种有前途的替代物,可以用于POP检测.
研究的目的:
- 审查WCB的发展,以监测关键的POP:多环芳 (PAH),多化双 (PCB) 和二氧化类化合物 (DLC).
- 讨论提高WCB环境监测性能和适应能力的进展.
- 突出WCB在实际环境监测中的创新应用.
主要方法:
- 通过突变繁殖对底盘细胞进行工程.
- 为WCBs开发和优化遗传电路.
- 改进报告员系统以提高检测灵敏度.
主要成果:
- 工程 WCB 实现了 POP 的超低检测极限 (例如,2,3,7,8-TCDD 的 10 fM,PCB 的 0.06-1 μM).
- 在灵敏度和特异性方面,WCB的性能与传统方法相比或优于传统方法.
- 进步使WCB能够监测一系列的POP,包括PAH,PCB和DLC.
结论:
- WCB为现场POP监测提供了一个可行的,具有成本效益的解决方案.
- 目前正在进行的研究正在改善WCB的敏感性,适应性和应用范围.
- 像基于智能手机的设备这样的变革性应用证明了WCB在弥合实验室和现场差距方面的潜力.
相关概念视频
01:09Levels of Organization
141.5K
Biological organization is the classification of biological structures, ranging from atoms at the bottom of the hierarchy to the Earth's biosphere. Each level of the hierarchy represents an increase in complexity that builds upon the previous level.
Molecules Are Composed of Atoms, and Biomolecules Are Assembled from Molecules:
The most basic levels include atoms, molecules, and biomolecules. Atoms, the smallest unit of ordinary matter, are composed of a nucleus and electrons. Molecules...
Molecules Are Composed of Atoms, and Biomolecules Are Assembled from Molecules:
The most basic levels include atoms, molecules, and biomolecules. Atoms, the smallest unit of ordinary matter, are composed of a nucleus and electrons. Molecules...
141.5K
01:29Microbial Morphologies
3.8K
Bacterial and archaeal cells exhibit remarkable diversity in shape and structure, critical in their adaptability and functionality. Among bacteria, the most commonly observed shapes include cocci and bacilli. Cocci are spherical and may exist singly or in groupings such as pairs (diplococci), chains (streptococci), clusters (staphylococci), or tetrads. Bacilli, in contrast, are rod-shaped and can also occur as single cells, in pairs, or chains, depending on their environmental and genetic...
3.8K
01:23Microbial Fermentation
1.6K
Fermentation is a crucial anaerobic metabolic process that enables microbes to derive energy from sugar without relying on oxygen or an electron transport chain. This process is fundamental to various biological and industrial applications and is classified based on the metabolic products generated.Role of Pyruvate in FermentationPyruvate and its derivatives serve as key electron acceptors in fermentative pathways. The oxidation of NADH to regenerate NAD+ is essential for the continuation of...
1.6K
00:53Transgenic Organisms
33.5K
Overview
33.5K
03:02Organic Compounds
57.5K
All living things are formed mostly of carbon compounds called organic compounds. The category of organic compounds includes both natural and synthetic compounds that contain carbon. Although a single, precise definition has yet to be identified by the chemistry community, most agree that a defining trait of organic molecules is the presence of carbon as the principal element, bonded to hydrogen and other carbon atoms. However, some carbon-containing compounds such as carbonates, cyanides, and...
57.5K
02:07Organization of Genes
73.7K
Overview
73.7K