Abstract:
:Spectral resolved tissue imaging has a broad range of biomedical applications such as the minimally invasive diagnosis of diseases and the study of wound healing and tissue engineering processes. Two-photon microscopy imaging of endogenous fluorescence has been shown to be a powerful method for the quantification of tissue structure and biochemistry. While two-photon excited autofluorescence is observed ubiquitously, the identities and distributions of endogenous fluorophores have not been completely characterized in most tissues. We develop an image-guided spectral analysis method to analyze the distribution of fluorophores in human skin from 3-D resolved two-photon images. We identify five factors that contribute to most of the luminescence signals from human skin. Luminescence species identified include tryptophan, NAD(P)H, melanin, and elastin, which are autofluorescent, and collagen that contributes to a second harmonic signal.
journal_name
J Biomed Optjournal_title
Journal of biomedical opticsauthors
Laiho LH,Pelet S,Hancewicz TM,Kaplan PD,So PTdoi
10.1117/1.1891370subject
Has Abstractpub_date
2005-03-01 00:00:00pages
024016issue
2eissn
1083-3668issn
1560-2281journal_volume
10pub_type
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