Journal
OPTICS EXPRESS
Volume 20, Issue 5, Pages 5419-5428Publisher
OPTICAL SOC AMER
DOI: 10.1364/OE.20.005419
Keywords
-
Categories
Funding
- Procter Gamble Company
- J.A. Woollam Co., Inc.
- American Heart Association
- National Science Foundation [EPS-1004094, ECCS-0846329]
- University of Nebraska-Lincoln College of Engineering
- Directorate For Engineering
- Div Of Electrical, Commun & Cyber Sys [846329] Funding Source: National Science Foundation
- EPSCoR [1004094] Funding Source: National Science Foundation
- Office Of The Director [1004094] Funding Source: National Science Foundation
Ask authors/readers for more resources
We apply generalized ellipsometry, well-known to be sensitive to the optical properties of anisotropic materials, to determine the amount of fibronectin protein that adsorbs onto a Ti slanted columnar thin film from solution. We find that the anisotropic optical properties of the thin film change upon organic adsorption. An optical model for ellipsometry data analysis incorporates an anisotropic Bruggeman effective medium approximation. We find that differences in experimental data from before and after fibronectin adsorption can be solely attributable to the uptake of fibronectin within the slanted columnar thin film. Simultaneous, in-situ generalized ellipsometry and quartz crystal microbalance measurements show excellent agreement on the amount and rate of fibronectin adsorption. Quantitative characterization of organic materials within three-dimensional, optically anisotropic slanted columnar thin films could permit their use in optical sensor applications. (C) 2012 Optical Society of America
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available