相关实验视频

Updated: Jun 27, 2025

Rapid and Specific Detection of Acinetobacter baumannii Infections Using a Recombinase Polymerase Amplification/Cas12a-based System

Rapid and Specific Detection of Acinetobacter baumannii Infections Using a Recombinase Polymerase Amplification/Cas12a-based System

Published on: April 25, 2025

使用RPA/CRISPR/Cas12a系统,快速,灵敏和用户友好的检测Pseudomonas aeruginosa

Wenjing Zhang¹, Hai Qu², Xin Wu³

¹Medical college, Henan University of Chinese Medicine, No.156, Jinshui East Road, Zhengzhou, 450046, Henan, China. hnzysophia@163.com.

BMC infectious diseases

|April 30, 2024

概括

一个新的RPA/CRISPR/Cas12a检测平台可以快速准确地识别Pseudomonas aeruginosa. 这种敏感的方法对于临床,食品和环境安全应用至关重要.

科学领域:

微生物学微生物学
分子生物学分子生物学
生物技术是生物技术.

背景情况:

伪菌 (P. aeruginosa) 是一种危险的细菌,以其快速抗生素耐药性而闻名.
这种耐药性在临床环境,生物安全,食品安全和环境监测方面带来了挑战.
早期和准确的P. aeruginosa检测对于有效的干预至关重要.

研究的目的:

开发和验证P. aeruginosa.的新型检测平台.
针对 lasB 基因进行敏感和特定的识别.
将平台的性能与已知方法 (如qPCR) 相比进行评估.

主要方法:

设计的RPA原始酶和CRISPR/Cas12acrRNA针对P. aeruginosa lasB基因.
使用15种细菌菌株评估特异性,并通过DNA稀释序列确定检测极限 (LOD).
通过对150个不同样本的qPCR进行比较,验证了该平台的实际适用性.

主要成果:

该RPA/CRISPR/Cas12a平台显示高特异性,没有交叉反应.
实现了10^0副本/μL (光) 和10^1副本/μL (LFTS) 的低LOD.
证明性能与qPCR相比,在速度,简单性和设备需求方面具有优势.

结论:

RPA/CRISPR/Cas12a平台提供了一种简单,准确和敏感的方法,用于早期检测P. aeruginosa.
这种方法对于需要快速可靠的细菌识别的各种应用具有前景.
该平台促进了临床,食品安全和环境环境中的及时干预.

关键词:

伪omonas aeruginosa 这种类型的病毒.这就是CRISPR/Cas12a.检测检测检测检测检测复合酶聚合酶放大复合酶的放大.

更多相关视频

DNA Virus Detection System Based on RPA-CRISPR/Cas12a-SPM and Deep Learning

DNA Virus Detection System Based on RPA-CRISPR/Cas12a-SPM and Deep Learning

Published on: May 10, 2024

Field-Deployable Candidatus Liberibacter asiaticus Detection Using Recombinase Polymerase Amplification Combined with CRISPR-Cas12a

Field-Deployable Candidatus Liberibacter asiaticus Detection Using Recombinase Polymerase Amplification Combined with CRISPR-Cas12a

Published on: December 23, 2022

相关概念视频

CRISPR and crRNAs

CRISPR and crRNAs

Bacteria and archaea are susceptible to viral infections just like eukaryotes; therefore, they have developed a unique adaptive immune system to protect themselves. Clustered regularly interspaced short palindromic repeats and CRISPR-associated proteins (CRISPR-Cas) are present in more than 45% of known bacteria and 90% of known archaea.
The CRISPR-Cas system stores a copy of foreign DNA in the host genome and uses it to identify the foreign DNA upon reinfection. CRISPR-Cas has three different...

CRISPR

CRISPR

Genome editing technologies allow scientists to modify an organism’s DNA via the addition, removal, or rearrangement of genetic material at specific genomic locations. These types of techniques could potentially be used to cure genetic disorders such as hemophilia and sickle cell anemia. One popular and widely used DNA-editing research tool that could lead to safe and effective cures for genetic disorders is the CRISPR-Cas9 system. CRISPR-Cas9 stands for Clustered Regularly Interspaced...