Real-time atomic force microscopy imaging of collagen fibril under ultraviolet irradiation

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Morphological changes that occur on collagen fibril under ultraviolet (UV) irradiation were directly observed using real-time atomic force microscopy (AFM). By analyzing real-time AFM images as a function of UV irradiation time, we found that the gap region of a collagen fibril was more vulnerable to UV light exposure than was the overlap region. In addition, the degraded collagen fragments in the gap region relocated and began accumulating in the overlap region. Through real-time observation of morphological changes using AFM, we verified that collagen fibrils are directly degraded by UV irradiation. Our findings help reveal the mechanisms of skin aging. (C) 2016 The Korean Society of Industrial and Engineering Chemistry. Published by Elsevier B.V. All rights reserved
Publisher
ELSEVIER SCIENCE INC
Issue Date
2016-10
Language
English
Article Type
Article
Keywords

TAIL TENDON COLLAGEN; I COLLAGEN; UV-IRRADIATION; THIN-FILMS; SKIN; LIGHT; ULTRASTRUCTURE; DEGRADATION; NANOSCALE; SITU

Citation

JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY, v.42, pp.15 - 18

ISSN
1226-086X
DOI
10.1016/j.jiec.2016.07.023
URI
http://hdl.handle.net/10203/214111
Appears in Collection
CH-Journal Papers(저널논문)
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