Nucleic Acid i-Motif Structures in Analytical Chemistry

被引:57
作者
Alba, Joan Josep [1 ]
Sadurni, Anna [1 ]
Gargallo, Raimundo [1 ]
机构
[1] Univ Barcelona, Dept Analyt Chem, Marti & Franques 1-11, E-08028 Barcelona, Spain
关键词
Bioanalytical; DNA; electrochemistry; i-motif; spectroscopy; CYTOSINE-RICH STRAND; CONFORMATIONAL SWITCH; PH CHANGES; GOLD NANOPARTICLES; DNA NANOMACHINE; ELECTROCHEMICAL SENSOR; HYPERSENSITIVE ELEMENT; CONJUGATED POLYMER; PROTON DETECTION; GENE-EXPRESSION;
D O I
10.1080/10408347.2016.1143347
中图分类号
O65 [分析化学];
学科分类号
070302 ; 081704 ;
摘要
Under the appropriate experimental conditions of pH and temperature, cytosine-rich segments in DNA or RNA sequences may produce a characteristic folded structure known as an i-motif. Besides its potential role in vivo, which is still under investigation, this structure has attracted increasing interest in other fields due to its sharp, fast and reversible pH-driven conformational changes. This on/off switch at molecular level is being used in nanotechnology and analytical chemistry to develop nanomachines and sensors, respectively. This paper presents a review of the latest applications of this structure in the field of chemical analysis.
引用
收藏
页码:443 / 454
页数:12
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