Bioinspired ion-transport properties of solid-state single nanochannels and their applications in sensing.
Biological ion channels are able to control ion-transport processes precisely because of their intriguing properties, such as selectivity, rectification, and gating. Learning from nature, scientists have developed a promising system--solid-state single nanochannels--to mimic biological ion-transport properties. These nanochannels have many impressive properties, such as excess surface charge, making them selective; the ability to be produced or modified asymmetrically, endowing them with rectification; and chemical reactivity of the inner surface, imparting them with desired gating properties. Based on these unique characteristics, solid-state single nanochannels have been explored in various applications, such as sensing. In this context, we summarize recent developments of bioinspired solid-state single nanochannels with ion-transport properties that resemble their biological counterparts, including selectivity, rectification, and gating; their applications in sensing are also introduced briefly.
Beijing National Laboratory for Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Zhongguancun, Haidian, Beijing, 100190 China.
Ye
Y
Tian
Liping
L
Wen
Xu
X
Hou
Guanglei
G
Hou
Lei
L
Jiang
D000595:Amino Acid Sequence; D032701:Biomimetics / Q000295:instrumentation / Q000379:methods*; D015374:Biosensing Techniques; D002413:Cations, Divalent / Q000032:analysis; D002414:Cations, Monovalent / Q000032:analysis; D015640:Ion Channel Gating; D007473:Ion Channels / Q000737:chemistry*; D017136:Ion Transport; D008839:Microelectrodes; D046210:Microfluidic Analytical Techniques; D008969:Molecular Sequence Data; D049329:Nanostructures / Q000737:chemistry*; D055672:Static Electricity; D013499:Surface Properties; D016335:Zinc Fingers
D002413:Cations, Divalent; D002414:Cations, Monovalent; D007473:Ion Channels