Investigation on a He-Plasma Gun source for cosmetic purposes: the importance of skin microenvironment

Abstract : With the increase of human span life people demand to live and look better. In a world where appearance is synonymous of health, the demand of new cosmetic has literally exploded. Among cosmetic treatments, skin care represents a large part of the business of beauty. From 2017 to 2023, world-wide non-surgical skin cosmetic treatments business will have a compound annual growth rate between 4.7% and 5.3% [1]. The increased demand of non-surgical beauty treatments pushed cosmetic research during the last years. In Europe since 2013 cosmetic tests on animal model are definitively banned. This encouraged researchers to develop new approaches to study skin “in-vitro” using either re-constructed tissue structure or attempting to mimic skin microenvironment parameters. Cell culture has been used since a long time to study organ functions in laboratory. In the last decades cell culture has greatly evolved in order to mimic the real tissue structure and microenvironment. Cells are cultivated in three dimensions and media are adapted to better simulate the extracellular environment. Attempting to get closer to the physiological micro-environment of a cell, scientists underestimated often a key parameter: the oxygen level [2]. While oxygen represents the 21% of the air gases, in human tissues, its percentage is significantly lower. In skin, it can vary from 7% to 1%. To be as close as possible to skin microenvironment, in our lab we grow human skin cells either in classic normoxic condition (18% O2) or in physioxic condition (3% O2). Oxygen has a key role in cell respiration and in reactive oxygen species (ROS) production. We have already demonstrated that skin cells raised in physioxia produce lower quantity of reactive oxygen and nitrogen species (RONS) even when exposed to plasma treatment [3]. In this study we evaluated the effect of a Cold Atmospheric Plasma (CAP) treatment on human skin cell raised either in normoxia or in physioxia. In particular, modulating plasma parameters from our helium Plasma Gun, we investigated the ability of CAP to improve cell viability and extracellular matrix production such as collagen, hyaluronic acid and elastin, macromolecules involved in maintaining the health and beauty of the skin.
Document type :
Conference papers
Complete list of metadatas

https://hal.archives-ouvertes.fr/hal-01943058
Contributor : Jean-Michel Pouvesle <>
Submitted on : Monday, December 3, 2018 - 3:46:27 PM
Last modification on : Saturday, September 7, 2019 - 12:02:59 PM

Identifiers

  • HAL Id : hal-01943058, version 1

Collections

Citation

Giovanni Busco, Loick Ridou, Fabienne Fasani, Sébastien Dozias, Jean-Michel Pouvesle, et al.. Investigation on a He-Plasma Gun source for cosmetic purposes: the importance of skin microenvironment. ICPM7, ISPM, Jun 2018, Philadelphia, United States. ⟨hal-01943058⟩

Share

Metrics

Record views

64