[Analysis Case] Evaluation of Transdermal Absorption of Indomethacin in Three-Dimensional Cultured Human Skin
Visualization of the distribution of active ingredients applied to cultured skin using TOF-SIMS.
TOF-SIMS identifies components from the mass of molecular ions, eliminating the need for labels such as fluorescent substances, allowing for imaging without their influence. Additionally, cross-sectional imaging enables the evaluation of distribution in the depth direction. In this study, a gel formulation of indomethacin was applied to three-dimensional cultured human skin, visualizing the distribution of the permeated active ingredient. As a result, it was found that indomethacin is concentrated on the surface side of the stratum corneum. Furthermore, depth profile analysis observed a gradual penetration towards the cell layers.
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Analysis of cosmetics and pharmaceuticals.
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MST is a foundation that provides contract analysis services. We possess various analytical instruments such as TEM, SIMS, and XRD to meet your analysis needs. Our knowledgeable sales representatives will propose appropriate analysis plans. We are also available for consultations at your company, of course. We have obtained ISO 9001 and ISO 27001 certifications. Please feel free to consult us for product development, identifying causes of defects, and patent investigations! MST will guide you to solutions for your "troubles"!