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https://www.selleckchem.com/products/a-196.html Light penetration in deeper tissue is impeded by the skin scattering properties, which significantly limits the clinical applications of light in medical diagnosis and therapy. To overcome this problem, skin optical clearing methods using different optical clearing agents (OCAs) have been extensively developed to clear the dermis tissue. It is critically important to remove the outmost stratum corneum (SC) before the OCAs were applied for optical clearing, since the SC works as a natural barrier to the OCAs. For this, a controllable approach for the SC disruption through physical or chemical methods is highly required for enhanced skin optical clearing. Salicylic acid (SA) was combined with OCAs as a rapid skin optical clearing method to create a transparent window within 5 min. The clearing efficacy of this method was demonstrated by using dorsal skin model of mice. In addition, the intensity variations of vessel gray images and diffuse reflectance (DR) spectra were used to quantify the optical clearing efficacy, which were acquired by a low-cost self-built white light imaging system and optical fiber spectrometer, respectively. Within a specific action time of the OCAs to the skin tissue, the enhanced images of the deeper blood vessels were obtained through the removal of the SC. It takes 5 min for the skin to turn transparent and 15 min to visualize the microvascular morphology for naked eyes. Furthermore, the intensity of blood vessel gray images was identified to be an evaluation parameter for quantifying the optical clearing efficacy. An efficient and easy-to-handle method for enhanced skin optical clearing was established by combining SA with OCAs, which could boost the clinical applications of light in medical diagnosis and therapy. An efficient and easy-to-handle method for enhanced skin optical clearing was established by combining SA with OCAs, which could boost the clinical applications of light in medical

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