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Poster De Conférence Année : 2023

Innovative instrumentation for assessing the mechanical properties of skin

Instrumentation innovante pour l'évaluation des propriétés mécaniques de la peau

Résumé

The global viscoelastic properties of human skin play a key role in skin integrity, as they confer to the cutaneous tissue its ability to remain intact. Measuring these mechanical properties has in general a triple interest: (i) To obtain a description of the natural history of the skin over the years; (ii) To have a method for objective evaluation of the effect of some medical or dermo-cosmetic products; (iii) To observe and quantify skin pathologies that can lead to an alteration of the tissue mechanical properties. In this context, a specific instrument to assess the viscoelastic properties of ex vivo human skin has been developed. This device can be adapted to evaluate viscoelastic properties in in vivo conditions. The main objective is to characterise the two mechanical components, elasticity and dissipation, at different frequencies in order to discriminate each phenomenon. This patented technology combined with the use of ex vivo skin samples under physiological conditions for several days, allows the study of the effect of different stresses on the skin. For example, mechanical analyses on stretch marks and on medicinal or cosmetic products with a recognised impact on the skin show that this technology can contribute to answering scientific questions and could help in the development of products intended for treatments. The approach proposed with this technology is to perform spectromechanical analysis to propose finally a phenomenological link with the structure of the skin. Indeed, this technology could have an impact in the scientific and medical fields because it allows to analyse and evaluate in an objective way: - the effects of different external stresses (stretch marks, exposure to UV rays, pollution by a chemical product or by the atmosphere, incision, etc.) - the effects of medical or dermo-cosmetic products (moisturising creams, anti-stretch mark creams, healing dressings, etc.) on the viscoelastic properties of human skin. In this poster, we will describe the technology and show the first results obtained to demonstrate the device’s ability to accurately explore the mechanical properties of skin under stresses.
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Dates et versions

hal-04112912 , version 1 (01-06-2023)

Identifiants

  • HAL Id : hal-04112912 , version 1

Citer

Bastien Blanchard, Francis Ehrenfeld, Anthony Laffore, Corinne Nardin, Giuseppe Percoco, et al.. Innovative instrumentation for assessing the mechanical properties of skin. COSM'INNOV - 5th edition : The International Congress for Cosmetics Research, May 2023, Orléans, France. . ⟨hal-04112912⟩
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