Immobilization of the Horseradish Peroxide on the Multi-Wall Nanotube and its Application for H2O2 Sensing

Autor:	Jin Chun Woo, Seong Dae Oh, Kang Deuk Seo, Sang-Ho Kim, Sang Hyub Oh, Seong-Ho Choi
Rok vydání:	2007
Předmět:	Nanotube Materials science Mechanical Engineering Nanoparticle Peroxide Amperometry chemistry.chemical_compound Aniline chemistry Chemical engineering Mechanics of Materials Covalent bond Polyaniline Polymer chemistry Electrode General Materials Science
Zdroj:	Key Engineering Materials. :869-872
ISSN:	1662-9795
DOI:	10.4028/www.scientific.net/kem.342-343.869
Popis:	In order to immobilize enzyme to multi-wall nanotube (MWNT), the MWNT was coated by the electrochemical polymerization of aniline. The horseradish peroxide (HRP) was immobilized on the surface of the polyaniline (PANI)-coated MWNT (PANI-MWNT film) by using gold nanoparticle (physical immobilization). The HRP was also immobilized on the surface of PANIMWNT film by using 2-aminothiophenol and Au nanoparticle (self-assembling immobilization). HRP was immobilized on the surface of PANI-MWNT electrode by using glutaric dialdehyde (covalent immobilization). The sensing efficiency of HRP-MWNT electrodes for H2O2 was evaluated by amperometric method. The sensing efficiency of HRP-MWNT electrodes for H2O2 was as following order; physical immobilization > covalent immobilization > self-assembling immobilization.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::12b97bbd5b482dba878cde6fb4ee50ee https://doi.org/10.4028/www.scientific.net/kem.342-343.869 Zobrazit plný text záznamu