Abstract

Imaging depth and quality of optical microscopy can be enhanced by optical clearing. Here we investigate the optical clearing of the ex vivo human skin by 50% glycerol topical application, which is allowed for cosmetic usage. Harmonic generation microscopy, by combining second and third harmonic generation (THG) modalities, was utilized to examine the clearing effect. The THG image intensity is sensitive to the improved optical homogeneity after optical clearing, and the second harmonic generation (SHG) image intensity in the dermis could serve as a beacon to confirm the reduction of the scattering in the epidermis layer. As a result, our study supports the OC effect through 50% glycerol topical application. Our study further indicates the critical role of stratum corneum shrinkage for the observed SHG and THG signal recovery.

Details

Title
Investigating the optical clearing effects of 50% glycerol in ex vivo human skin by harmonic generation microscopy
Author
Jia-Hong, Lai 1 ; En-Yu, Liao 1 ; Yi-Hua, Liao 2 ; Chi-Kuang, Sun 1 

 National Taiwan University, Department of Electrical Engineering and Graduate Institute of Photonics and Optoelectronics, Taipei, Taiwan (GRID:grid.19188.39) (ISNI:0000 0004 0546 0241) 
 National Taiwan University, Department of Dermatology, National Taiwan University Hospital and College of Medicine, Taipei, Taiwan (GRID:grid.19188.39) (ISNI:0000 0004 0546 0241) 
Publication year
2021
Publication date
2021
Publisher
Nature Publishing Group
e-ISSN
20452322
Source type
Scholarly Journal
Language of publication
English
ProQuest document ID
2476745190
Copyright
© The Author(s) 2021. This work is published under http://creativecommons.org/licenses/by/4.0/ (the “License”). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.