生物传感器
适体
DNA
纳米技术
脱氧核酶
纳米材料
计算生物学
组合化学
化学
材料科学
生物物理学
生物
遗传学
生物化学
作者
Ziheng Hu,Zhiguang Suo,Wenxia Liu,Biying Zhao,Feifei Xing,Zhe Yuan,Lingyan Feng
标识
DOI:10.1016/j.bios.2019.02.019
摘要
In this mini review, we will briefly introduce the rapid development of DNA conformational polymorphism in biosensing field, including canonical DNA duplex, triplex, quadruplex, DNA origami, as well as more functionalized DNAs (aptamer, DNAzyme etc.). Various DNA structures are adopted to play important roles in sensor construction, through working as recognition receptor, signal reporter or linking staple for signal motifs, etc. We will mainly summarize their recent developments in DNA-based electrochemical and fluorescent sensors. For the electrochemical sensors, several types will be included, e.g. the amperometric, electrochemical impedance, electrochemiluminescence, as well as field-effect transistor sensors. For the fluorescent sensors, DNA is usually modified with fluorescent molecules or novel nanomaterials as report probes, excepting its core recognition function. Finally, general conclusion and future perspectives will be discussed for further developments.
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