Characteristics of Protein-Polymer Nanobiocomposite Films for Protein Devices

$113.00 plus tax (Refund Policy)

Buy Article:

Abstract:

Here we report the characteristics of protein-polymer nanobiocomposite films and their solid state devices. The protein-polymer nanobiocomposite films (thickness = ∼125 nm) were prepared by spin-coating the solution of cytochrome c (cyt c) and poly(vinyl alcohol) (PVA) (cyt c:PVA = 3:1 by weight). To understand the characteristics of the cyt c-PVA films (nanolayers), we employed the optical absorption and surface morphology measurement and then fabricated planar diode-type solid state devices. The optical absorption measurement showed that the heme part of cyt c in the cyt c-PVA nanolayer was well kept after the coating process, while the crack-like surface was found from the atomic force microscopy measurement. The planar device showed an ohmic type dark current, but the current gradually increased as the incident light intensity increased. In particular, the (photo) current was strongly dependent upon the voltage, which was assigned to the insulating role of cyt c surrounding groups and PVA. This trend was supported by the slow rise and decay time via photo-switching experiment.

Keywords: CYTOCHROME C; MORPHOLOGY; NANOBIOCOMPOSITE; PHOTOCURRENT; PROTEIN DEVICE

Document Type: Research Article

DOI: http://dx.doi.org/10.1166/jnn.2012.4584

Publication date: February 1, 2012

More about this publication?
  • Journal for Nanoscience and Nanotechnology (JNN) is an international and multidisciplinary peer-reviewed journal with a wide-ranging coverage, consolidating research activities in all areas of nanoscience and nanotechnology into a single and unique reference source. JNN is the first cross-disciplinary journal to publish original full research articles, rapid communications of important new scientific and technological findings, timely state-of-the-art reviews with author's photo and short biography, and current research news encompassing the fundamental and applied research in all disciplines of science, engineering and medicine.
  • Editorial Board
  • Information for Authors
  • Subscribe to this Title
  • Terms & Conditions
  • ingentaconnect is not responsible for the content or availability of external websites
Related content

Tools

Favourites

Share Content

Access Key

Free Content
Free content
New Content
New content
Open Access Content
Open access content
Subscribed Content
Subscribed content
Free Trial Content
Free trial content
Cookie Policy
X
Cookie Policy
ingentaconnect website makes use of cookies so as to keep track of data that you have filled in. I am Happy with this Find out more