Room Temperature Ionic Liquid Templated Meso-Macroporous Material by Self-Assembled Giant Gold Nanoparticles and Its Enhancement on the Direct Electrochemistry of Cytochrome c

CORC > 北京大学 > 化学与分子工程学院

	Room Temperature Ionic Liquid Templated Meso-Macroporous Material by Self-Assembled Giant Gold Nanoparticles and Its Enhancement on the Direct Electrochemistry of Cytochrome c
	Li Pei ; Zhan Dongping ; Shao Yuanhua
刊名	电化学
	2014
关键词	room temperature ionic liquid self-assemble gold nanoparticles cytochrome c biosensors
英文摘要	Room temperature ionic liquid (RTIL) is used as a soft-template to organize a meso-macroporous material constructed by self-assembled giant gold nanoparticles which are capped by L-cysteine. First, L-cysteine capped gold nanoparticles can self-assembly to form nanowires and sub-micrometer spherical giant particles due to the static interaction and/or the condensation reaction between the carboxyl and amino groups at the outer terminal of the ligand. Second, the spherical assembled particles can form a quasi-solid gel when grinding with a hydrophobic RTIL, 1-octyl-3-metyllimidazolium hexafluorophosphate. Finally, when the composite gel is coated on a glassy carbon electrode and then polarized by using cyclic voltammetry in phosphate buffer solution (PBS, pH = 7.4), a meso-macroporous structure is formed due to the leakage of the surplus of RTIL in the gel. This meso-macroporous structured material has a good conductivity and affinity to biological macromolecules. The faradaic current of cytochrome c can be enhanced significantly due to both the high outer surface area and the inner "thin-layer" effect. The experimental results indicate that this novel meso-macroporous material has potential application for electrochemical devices including biosensors and biofuel cells.; supported by the National Natural Science Foundation of China,the special 985 project of the Peking University; 中文核心期刊要目总览(PKU); 中国科技核心期刊(ISTIC); 中国科学引文数据库(CSCD); 4; 323-332; 20
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/416002]
专题	化学与分子工程学院
推荐引用方式 GB/T 7714	Li Pei,Zhan Dongping,Shao Yuanhua. Room Temperature Ionic Liquid Templated Meso-Macroporous Material by Self-Assembled Giant Gold Nanoparticles and Its Enhancement on the Direct Electrochemistry of Cytochrome c[J]. 电化学,2014.
APA	Li Pei,Zhan Dongping,&Shao Yuanhua.(2014).Room Temperature Ionic Liquid Templated Meso-Macroporous Material by Self-Assembled Giant Gold Nanoparticles and Its Enhancement on the Direct Electrochemistry of Cytochrome c.电化学.
MLA	Li Pei,et al."Room Temperature Ionic Liquid Templated Meso-Macroporous Material by Self-Assembled Giant Gold Nanoparticles and Its Enhancement on the Direct Electrochemistry of Cytochrome c".电化学 (2014).