Title :
Excimer laser ablation of biomaterials: the contribution of water in collagen films
Author_Institution :
Dept. of Appl. Chem., Sci. Univ. of Tokyo, Japan
fDate :
Aug. 30 1999-Sept. 3 1999
Abstract :
We investigated the surface structure of the excimer laser ablation by the microphotoetching of dried and swelled collagen films using atomic force microscope (AFM) and scanning electron microscope (SEM) measurements. We characterized the roughness of the etched surface by topographical analysis. The thermal effect of the collagen was investigated from the changes in the amide I band of the debris by ATR method using FT-IR spectroscopy. Especially, we studied the time-resolved photographic relations inorder to determine the mechanism causing the difference in the excimer laser ablation between the swelled and the dried collagen films.
Keywords :
atomic force microscopy; biological techniques; excimer lasers; laser ablation; optical films; proteins; scanning electron microscopy; AFM; ATR method; FT-IR spectroscopy; amide I band; atomic force microscope; biomaterials; collagen films; dried collagen films; etched surface roughness; excimer laser ablation; microphotoetching; scanning electron microscope; swelled collagen films; thermal effect; time-resolved photographic relations; topographical analysis; water; Atom lasers; Atomic beams; Atomic force microscopy; Atomic measurements; Etching; Force measurement; Laser ablation; Rough surfaces; Scanning electron microscopy; Surface structures;
Conference_Titel :
Lasers and Electro-Optics, 1999. CLEO/Pacific Rim '99. The Pacific Rim Conference on
Conference_Location :
Seoul, South Korea
Print_ISBN :
0-7803-5661-6
DOI :
10.1109/CLEOPR.1999.817750
