Document Detail


Raman microspectroscopy of melanosomes: the effect of long term light irradiation.
MedLine Citation:
PMID:  21800432     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
Melanosomes are long lived organelles in retinal pigment epithelium cells and are primarily responsible for photoprotection. However, with aging or prolong light radiation, the function of melanosomes diminishes, which may be due to photobleaching of melanin pigments present in melanosomes. In this study, melanosomes were isolated from the retinal pigment epithelium cells and exposed to green light (532 nm), and the chemical changes were monitored using Raman microspectroscopy. Photochemical changes were recorded for different power levels and exposure times. The threshold power and the rate for irreversible photobleaching of melanosomes were calculated by fitting the experimental data with a proposed model. (© 2011 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim).
Authors:
Anushree Saha; Rajan Arora; Vladislav V Yakovlev; Janice M Burke
Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2011-7-29
Journal Detail:
Title:  Journal of biophotonics     Volume:  -     ISSN:  1864-0648     ISO Abbreviation:  -     Publication Date:  2011 Jul 
Date Detail:
Created Date:  2011-7-29     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  101318567     Medline TA:  J Biophotonics     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Copyright Information:
Copyright © 2011 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
Affiliation:
School of Medicine, Case Western Reserve University, 2085 Adelbert Road, OH 44106, USA. anushree.saha@case.edu.
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