技术
电子线路
放大器
计算机科学
纳米技术
材料科学
电气工程
物理
工程类
电信
天文
电离层
带宽(计算)
作者
Fengye Mo,Chenbiao Li,Junlin Sun,Xue Lin,Shuyi Yu,Fuan Wang,Xiaoqing Liu,Xiaoqing Liu
出处
期刊:Small
[Wiley]
日期:2024-09-03
标识
DOI:10.1002/smll.202402914
摘要
DNA amplifier circuits establish powerful tools to dynamically control molecular assembly for computation, sensing, and biological applications. However, the slow reaction speed remains a major barrier to their practical utility. Here, diverse fast DNA amplifier circuits termed toehold exchange polymerization (TEP) and toehold exchange catalysis (TEC) using toehold exchange-mediated assembly as a fundamental mechanism are built. Both TEP and TEC with a duplex and a hairpin can respond within minutes to diverse nucleic acid inputs with high fidelity. In addition, the circuits can amplify live-cell signals for fluorescence imaging target RNA dynamics and discriminating different cell lines. Compared with existing DNA circuits that involve time scales of hours for transducing small signals, TEP and TEC exhibit much faster dynamics, simpler design, and comparable sensitivity. These features make TEP and TEC promising platforms to develop programmable nucleic acid tools and devices and to create fast sensing and processing systems, amenable to wide practical applications.
科研通智能强力驱动
Strongly Powered by AbleSci AI