Literature DB >> 10461455

Femtosecond two-photon excited fluorescence of melanin.

K Teuchner1, W Freyer, D Leupold, A Volkmer, D J Birch, P Altmeyer, M Stücker, K Hoffmann.   

Abstract

Fluorescence of synthetic melanin in dimethyl sulfoxide has been excited by two-photon absorption at 800 nm, using 120 fs pulses with photon flux densities > or = 10(27) cm-2 s-1. The shortest main component of the three-exponential decay of fluorescence is 200 +/- 2 ps. The overall spectral shape is red-shifted with respect to the 400 nm excited fluorescence. Two-photon excited melanin fluorescence also has been measured from excised samples of healthy human skin tissue. Because of the selectivity of melanin excitation via resonant two-photon absorption, it is hypothesized that fluorescence excited in this way may yield information on malignant transformation.

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Year:  1999        PMID： 10461455

Source DB:  PubMed          Journal:  Photochem Photobiol        ISSN： 0031-8655            Impact factor:   3.421


  19 in total

1.  In vivo measurements of cutaneous melanin across spatial scales: using multiphoton microscopy and spatial frequency domain spectroscopy.

Authors:  Rolf B Saager; Mihaela Balu; Viera Crosignani; Ata Sharif; Anthony J Durkin; Kristen M Kelly; Bruce J Tromberg
Journal:  J Biomed Opt       Date:  2015-06       Impact factor: 3.170

2.  Four-Photon Excitation of 2,2'-Dimethyl-p-terphenyl.

Authors:  Ignacy Gryczynski; Grzegorz Piszczek; Zygmunt Gryczynski; Joseph R Lakowicz
Journal:  J Phys Chem A       Date:  2002-01-12       Impact factor: 2.781

3.  Two-photon imaging of the mouse eye.

Authors:  Andrew W Johnson; David A Ammar; Malik Y Kahook
Journal:  Invest Ophthalmol Vis Sci       Date:  2011-06-09       Impact factor: 4.799

Review 4.  [Multiphoton microscopy and in vivo tomography in dermatologic imaging].

Authors:  M Kaatz; K König
Journal:  Hautarzt       Date:  2010-05       Impact factor: 0.751

Review 5.  [Two-photon fluorescence of ocular melanomas. Studies on a new diagnostic method].

Authors:  M Schneider; K Teuchner; D Leupold
Journal:  Ophthalmologe       Date:  2005-07       Impact factor: 1.059

6.  Imaging of brain and brain tumor specimens by time-resolved multiphoton excitation microscopy ex vivo.

Authors:  Sven R Kantelhardt; Jan Leppert; Jochen Krajewski; Nadine Petkus; Erich Reusche; Volker M Tronnier; Gereon Hüttmann; Alf Giese
Journal:  Neuro Oncol       Date:  2007-02-26       Impact factor: 12.300

Review 7.  Nonlinear absorption microscopy.

Authors:  Tong Ye; Dan Fu; Warren S Warren
Journal:  Photochem Photobiol       Date:  2009-01-23       Impact factor: 3.421

Review 8.  Imaging and quantifying drug delivery in skin - Part 2: Fluorescence andvibrational spectroscopic imaging methods.

Authors:  Ana-Maria Pena; Xueqin Chen; Isaac J Pence; Thomas Bornschlögl; Sinyoung Jeong; Sébastien Grégoire; Gustavo S Luengo; Philippe Hallegot; Peyman Obeidy; Amin Feizpour; Kin F Chan; Conor L Evans
Journal:  Adv Drug Deliv Rev       Date:  2020-03-23       Impact factor: 15.470

9.  Imaging of ultraweak spontaneous photon emission from human body displaying diurnal rhythm.

Authors:  Masaki Kobayashi; Daisuke Kikuchi; Hitoshi Okamura
Journal:  PLoS One       Date:  2009-07-16       Impact factor: 3.240

10.  Multiphoton multispectral fluorescence lifetime tomography for the evaluation of basal cell carcinomas.

Authors:  Rakesh Patalay; Clifford Talbot; Yuriy Alexandrov; Martin O Lenz; Sunil Kumar; Sean Warren; Ian Munro; Mark A A Neil; Karsten König; Paul M W French; Anthony Chu; Gordon W H Stamp; Chris Dunsby
Journal:  PLoS One       Date:  2012-09-11       Impact factor: 3.240
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