Fabrication and characterization of submicrometer- and nanometer-sized   double-barrel pipets

doi:10.1021/ac060773r

CORC > 北京大学 > 化学与分子工程学院

	Fabrication and characterization of submicrometer- and nanometer-sized double-barrel pipets
	Hu, Hu ; Xie, Shubao ; Meng, Xin ; Jing, Ping ; Zhang, Meiqin ; Shen, Li ; Zhu, Zhiwei ; Li, Meixian ; Zhuang, Qiankun ; Shao, Yuanhua
刊名	analytical chemistry
	2006
关键词	SCANNING ELECTROCHEMICAL MICROSCOPY FACILITATED ION TRANSFER LIQUID-LIQUID INTERFACE LIQUID/LIQUID INTERFACE CHARGE-TRANSFER MICROPIPET ELECTRODES POTASSIUM-ION VOLTAMMETRY DIBENZO-18-CROWN-6 KINETICS
DOI	10.1021/ac060773r
英文摘要	Submicro- and nanometer-sized glass double-barrel pipets have been fabricated by a laser puller with new pulling programs and have been used to support submicro- and nanometer dual liquid/liquid interfaces. The smallest pipet that can be made by this approach is similar to 20 nm in radius. These pipets have been characterized by cyclic voltammetry and scanning electron microscopy. Generation/collection mode of charge-transfer reaction is demonstrated at the submicro- and nanometer dual-liquid/liquid interfaces. The dependence of collection efficiency upon geometric parameters of the pipets has been discussed. Among the micro-, submicro-, and nanopipets, we have found that the submicro-double-barrel pipets have higher collection efficiencies than that of others and are also very close to the values predicted by the theory. Therefore, in terms of G/C mode applications, the optimal size of double-barrel pipets should be in submicrometer scale. As one of the examples of special application, we have also demonstrated that in the case of no supporting electrolyte, only the nanometer double-barrel pipets can provide reasonably good G/C results.; Chemistry, Analytical; SCI(E); EI; PubMed; 10; ARTICLE; 19; 7034-7039; 78
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/198687]
专题	化学与分子工程学院
推荐引用方式 GB/T 7714	Hu, Hu,Xie, Shubao,Meng, Xin,et al. Fabrication and characterization of submicrometer- and nanometer-sized double-barrel pipets[J]. analytical chemistry,2006.
APA	Hu, Hu.,Xie, Shubao.,Meng, Xin.,Jing, Ping.,Zhang, Meiqin.,...&Shao, Yuanhua.(2006).Fabrication and characterization of submicrometer- and nanometer-sized double-barrel pipets.analytical chemistry.
MLA	Hu, Hu,et al."Fabrication and characterization of submicrometer- and nanometer-sized double-barrel pipets".analytical chemistry (2006).