Title :
Surface modification of γ-Al2O3 filters by chemisorption of alkyltrichlorosilane molecules
Author :
Tamanaha, Cy R. ; Mendelson, Yitzhak ; Peura, Robert A.
Author_Institution :
Dept. of Biomed. Eng., Worcester Polytech. Inst., MA, USA
fDate :
31 Oct-3 Nov 1996
Abstract :
Surfaces of aluminum oxide (γ-Al2O3) filters with 0.02 μm pores were modified for biomembrane-mimetic formation by chemisorption of alkyltrichlorosilane molecules. A water-masking process was employed to protect the pores from involvement in the reaction. Characterization was carried out using contact angle measurements, atomic force microscopy, and grazing incidence IR spectroscopy. A protocol was developed from these measurements that resulted in a near monolayer distribution of alkyltrichlorosilane molecules across the filter surface
Keywords :
aluminium compounds; atomic force microscopy; biomembranes; biosensors; chemisorption; contact angle; filtration; infrared spectra; γ-Al2O3 filters; 0.02 mum; Al2O3; alkyltrichlorosilane molecules chemisorption; biomembrane-mimetic formation; biosensor design; filter surface; near monolayer distribution; surface modification; water-masking process; Aluminum oxide; Atomic force microscopy; Atomic layer deposition; Atomic measurements; Filters; Force measurement; Goniometers; Infrared spectra; Protection; Spectroscopy;
Conference_Titel :
Engineering in Medicine and Biology Society, 1996. Bridging Disciplines for Biomedicine. Proceedings of the 18th Annual International Conference of the IEEE
Conference_Location :
Amsterdam
Print_ISBN :
0-7803-3811-1
DOI :
10.1109/IEMBS.1996.646436
