Visualizing laser-skin interaction in vivo by multiphoton microscopy

Tsung Hua Tsai, Shiou Hwa Jee, Jung Yi Chan, Jin Ning Lee, Woan Ruoh Lee, Chen Yuan Dong, Sung Jan Lin

Research output: Contribution to journalArticle

17 Citations (Scopus)

Abstract

Recently, multiphoton microscopy has gained much popularity as a noninvasive imaging modality in biomedical research. We evaluate the potential of multiphoton microscopy for monitoring laser-skin reaction in vivo. Nude mouse skin is irradiated with an erbium:YAG laser at various fluences and immediately imaged by a multiphoton microscope. The alterations of cutaneous nonlinear optical properties including multiphoton autofluorescence and second-harmonic generation associated with laser irradiation are evaluated morphologically and quantitatively. Our results show that an erbium:YAG laser at a low fluence can selectively disrupt the stratum corneum, and this alteration may account for the penetration enhancing effect of laser-assisted transcutaneous drug delivery. At a higher fluence, the zone of tissue ablation as well as the disruption of the surrounding stratum corneum, keratinocytes, and dermal extracellular matrix can be better characterized by multiphoton microscopy as compared with conventional histology. Furthermore, the degree of collagen damage in the residual thermal zone can be quantified by second-harmonic generation signals, which have significant difference between control skin, skin irradiated with a 1.5-, 8-, and 16-J/cm 2 erbium:YAG laser (P

Original languageEnglish
Article number024034
JournalJournal of Biomedical Optics
Volume14
Issue number2
DOIs
Publication statusPublished - 2009

Fingerprint

erbium
Erbium
YAG lasers
Skin
Microscopic examination
fluence
cornea
strata
microscopy
Lasers
harmonic generations
lasers
Harmonic generation
histology
interactions
collagens
ablation
mice
delivery
drugs

Keywords

  • autofluorescence
  • collagen
  • laser
  • laser-assisted drug delivery
  • multiphoton
  • second-harmonic generation

ASJC Scopus subject areas

  • Biomedical Engineering
  • Biomaterials
  • Electronic, Optical and Magnetic Materials
  • Atomic and Molecular Physics, and Optics

Cite this

Tsai, T. H., Jee, S. H., Chan, J. Y., Lee, J. N., Lee, W. R., Dong, C. Y., & Lin, S. J. (2009). Visualizing laser-skin interaction in vivo by multiphoton microscopy. Journal of Biomedical Optics, 14(2), [024034]. https://doi.org/10.1117/1.3116711

Visualizing laser-skin interaction in vivo by multiphoton microscopy. / Tsai, Tsung Hua; Jee, Shiou Hwa; Chan, Jung Yi; Lee, Jin Ning; Lee, Woan Ruoh; Dong, Chen Yuan; Lin, Sung Jan.

In: Journal of Biomedical Optics, Vol. 14, No. 2, 024034, 2009.

Research output: Contribution to journalArticle

Tsai, TH, Jee, SH, Chan, JY, Lee, JN, Lee, WR, Dong, CY & Lin, SJ 2009, 'Visualizing laser-skin interaction in vivo by multiphoton microscopy', Journal of Biomedical Optics, vol. 14, no. 2, 024034. https://doi.org/10.1117/1.3116711
Tsai, Tsung Hua ; Jee, Shiou Hwa ; Chan, Jung Yi ; Lee, Jin Ning ; Lee, Woan Ruoh ; Dong, Chen Yuan ; Lin, Sung Jan. / Visualizing laser-skin interaction in vivo by multiphoton microscopy. In: Journal of Biomedical Optics. 2009 ; Vol. 14, No. 2.
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