Electrical Field Regulation of Ion Transport in Polyethylene Terephthalate Nanochannels

doi:10.1021/acsami.9b13088

	Electrical Field Regulation of Ion Transport in Polyethylene Terephthalate Nanochannels
	Li, Yaning 1,2; Du, Guanghua 1,2; Mao, Guangbo 1,2; Guo, Jinlong 1; Zhao, Jing 1,2; Wu, Ruqun 1,2; Liu, Wenjing 1,2
刊名	ACS APPLIED MATERIALS & INTERFACES
	2019-10-16
卷号	11 期号:41 页码:38055-38060
关键词	nanochannel ion transportation electrical regulation ion track charge inversion
ISSN号	1944-8244
DOI	10.1021/acsami.9b13088
通讯作者	Du, Guanghua(gh_du@impcas.ac.cn)
英文摘要	Rectified ion transport in nanochannels is the basis of ion channels in biological cells and has inspired emerging nanochannel applications in ion separation, Coulter counters, and biomolecule detection and nanochannel energy harvesters. In this work we fabricated a polyethylene terephthalate (PET) conical nanochannel using latent ion track etching technique and then systematically studied the ion transport and influence of cation species on the nanochannel surface with cyclic I-V measurement. We discovered the electrical regulation of the reversible and irreversible modification of the nanochannel transportation by bivalent and trivalent cations, revealing the existence of the switching threshold voltage which can control the current rectification in bivalent solution. The proposed mechanism of the transport state transition in the PET nanochannel mimics behaviors of voltage-gated biological ion channels. These findings provide new insight into the understanding of the ion channel signaling and translocation control of charged particles in nanochannel applications.
资助项目	National Natural Science Foundation of China (NSFC Grants)[U1632271] ; National Natural Science Foundation of China (NSFC Grants)[11975283] ; National Natural Science Foundation of China (NSFC Grants)[U1732143]
WOS关键词	CURRENT RECTIFICATION ; SOLID-STATE ; BIOLOGICAL NANOPORE ; CHARGE INVERSION ; DNA ; CALCIUM ; WATER ; FABRICATION ; CHANNEL ; CATIONS
WOS研究方向	Science & Technology - Other Topics ; Materials Science
语种	英语
出版者	AMER CHEMICAL SOC
WOS记录号	WOS:000491219700072
资助机构	National Natural Science Foundation of China (NSFC Grants)
内容类型	期刊论文
源URL	[http://119.78.100.186/handle/113462/141540]
专题	中国科学院近代物理研究所
通讯作者	Du, Guanghua
作者单位	1.Chinese Acad Sci, Inst Modern Phys, Lanzhou 730000, Gansu, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Li, Yaning,Du, Guanghua,Mao, Guangbo,et al. Electrical Field Regulation of Ion Transport in Polyethylene Terephthalate Nanochannels[J]. ACS APPLIED MATERIALS & INTERFACES,2019,11(41):38055-38060.
APA	Li, Yaning.,Du, Guanghua.,Mao, Guangbo.,Guo, Jinlong.,Zhao, Jing.,...&Liu, Wenjing.(2019).Electrical Field Regulation of Ion Transport in Polyethylene Terephthalate Nanochannels.ACS APPLIED MATERIALS & INTERFACES,11(41),38055-38060.
MLA	Li, Yaning,et al."Electrical Field Regulation of Ion Transport in Polyethylene Terephthalate Nanochannels".ACS APPLIED MATERIALS & INTERFACES 11.41(2019):38055-38060.