文献类型：期刊文献

英文题名：A novel biomimetic logic gate for sensitive and selective detection of Pb(II) base on porous alumina nanochannels

作者：Chen, Zhi-Meng[1];Shen, Guo-Zhu[1];Li, Yi-Ping[1];Zhang, Peng[1];Ji, Hong-Wu[1];Liu, Shu-Cheng[1];Li, Cheng-Yong[1,2];Qian, Zhong-Ji[3]

机构：[1]Guangdong Ocean Univ, Coll Food Sci & Technol, Guangdong Prov Key Lab Aquat Prod Proc & Safety, Key Lab Adv Proc Aquat Prod,Guangdong Higher Educ, Zhanjiang 524088, Peoples R China;[2]Nanjing Univ, Sch Chem & Chem Engn, State Key Lab Analyt Chem Life Sci, Nanjing 210093, Jiangsu, Peoples R China;[3]Pukyong Natl Univ, Dept Chem, Busan 608737, South Korea

年份：2015

卷号：60

起止页码：83

外文期刊名：ELECTROCHEMISTRY COMMUNICATIONS

收录：SCI-EXPANDED(收录号：WOS:000364797700020)、、EI(收录号：20153501227033)、Scopus(收录号：2-s2.0-84940374519)、WOS

基金：This work was supported by the National Natural Science Foundation of China (21405024), the Fund of State Key Lab of Analytical Chemistry for Life Science (SKLACLS1309), the Guangdong Province Innovation School Project (2014KQNCX085),and the Training Programs of Innovation and Entrepreneurship for Undergraduates (201510566003).

语种：英文

外文关键词：Nanochannel; Steric blockage; Charge repulsion; Pb2+ detection

外文摘要：A novel biomimetic logic gate sensor for Pb2+ is established using porous alumina membrane nanochannels modified with morpholino and DNA. It is based on electrochemical detection, and the current response from the diffusion flux of Fe(CN)(6)(3-) is influenced by the steric blockage and charge repulsion in nanochannels. A limit of detection (0.1 nM) and good linear range (0.1 nM-5 mu M) for Pb2+ analysis are achieved in the tenth cycle. The sensing strategy shows prospective application in drug release, artificial ion channels, DNA logic gates for controlling biomolecule, and ion translocation. (C) 2015 Elsevier B.V. All rights reserved.