Characterization of flagella-templated silica nanotubes and their metallization

Author

Jo, W. ; Freedman, K.J. ; Kim, M.J.

Author_Institution

Drexel Univ., Philadelphia, PA, USA

fYear

2012

fDate

16-18 March 2012

Firstpage

191

Lastpage

192

Abstract

We demonstrate that the use of bacterial flagella as potential bio-templates allows for the generation of silica-mineralized nanotubes in an efficient manner. The process involved a well-controlled condensation and hydrolysis reaction with aminopropyltriethoxysilane (APTES) and tetraethoxysilane (TEOS). For the tunable thickness of the silica layer, we employed various concentration ratios of TEOS and reaction time. In addition, the silica-mineralized flagella nanotubes (SMFNs) were modified to multifunctional nanotubes by coating with gold, palladium, and iron oxide.

Keywords

biochemistry; cellular biophysics; coatings; condensation; gold; iron compounds; metallisation; microorganisms; nanobiotechnology; nanotubes; organic compounds; palladium; silicon compounds; SiO₂-Au; SiO₂-FeO; SiO₂-Pd; aminopropyltriethoxysilane; bacterial flagella; coating; flagella-templated silica nanotubes; gold; hydrolysis reaction; iron oxide; metallization; multifunctional nanotubes; palladium; silica-mineralized flagella nanotubes; tetraethoxysilane; well-controlled condensation; Coatings; Gold; Iron; Nanoparticles; Nanotubes; Silicon compounds; Surface treatment;

fLanguage

English

Publisher

ieee

Conference_Titel

Bioengineering Conference (NEBEC), 2012 38th Annual Northeast

Conference_Location

Philadelphia, PA

ISSN

2160-7001

Print_ISBN

978-1-4673-1141-0

Type

conf

DOI

10.1109/NEBC.2012.6207028

Filename

6207028