Nanoscaled redox active protein adsorption on Au-dot arrays: An electrochemical scanning probe microscopic investigation for application in nano-biodevices
- Authors
- Yagati, Ajay Kumar; Jung, Mi; Kim, Sang-Uk; Min, Junhong; Choi, Jeong-Woo
- Issue Date
- Nov-2009
- Publisher
- ELSEVIER SCIENCE SA
- Keywords
- Azurin; Au-dots; Electrochemical scanning tunneling microscopy; Conduction; Nanobiochip
- Citation
- THIN SOLID FILMS, v.518, no.2, pp 634 - 637
- Pages
- 4
- Journal Title
- THIN SOLID FILMS
- Volume
- 518
- Number
- 2
- Start Page
- 634
- End Page
- 637
- URI
- https://scholarworks.bwise.kr/cau/handle/2019.sw.cau/55581
- DOI
- 10.1016/j.tsf.2009.07.053
- ISSN
- 0040-6090
- Abstract
- Highly dense and uniform protein dot arrays on Au-nanodots using size controllable method were fabricated on indium tin oxide (ITO) substrate in order to develop an electrochemical nanobiochip. Cysteine modified azurin was directly immobilized on the fabricated Au-nanodots without any linker materials. Atomic force microscopy was used for characterizing Au-dots formed on ITO substrate. Electrochemical scanning tunneling microscopy (ECSTM) revealed the monolayer formation with an in situ cyclic voltammetry to observe redox behaviour of both bare Au-dots and protein immobilized Au-dots. I-V characteristics were obtained on both bare Au-dots and protein immobilized Au-dots structured on ITO conductive electrodes. (C) 2009 Elsevier B.V. All rights reserved.
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Collections - College of ICT Engineering > School of Integrative Engineering > 1. Journal Articles
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