Silicone film smoothes wrinkles. Free Technical Library News

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Silicone film smoothes wrinkles

30.05.2016

For most of us, aging is associated not with mutations, not with chromosomal telomeres, not with wear and tear of mitochondria, but with wrinkles.

Indeed, the skin ages quickly and begins to look unimportant - but the problem here is not only in poor appearance: losing elasticity and strength, the skin ceases to protect us from bacteria, toxins, heat and cold, radioactive radiation; finally, she does not regenerate well when injured. And how good it would be if spoiled, aged, unusable skin could be replaced with an artificial analogue.

Scientists at the Massachusetts Institute of Technology, led by Daniel Anderson (Daniel Anderson) have created a polymer film that has the elasticity and strength of real skin.

The skin-like film was made from filaments of siloxane, the so-called variety of organic compounds whose molecules are built on the basis of a skeleton of silicon and oxygen atoms. The researchers tested about a hundred siloxane polymers cross-linked via chemical bonds; as a result, we managed to find one that best suited real human skin.

The "synthetic coating" is more stretchable (the siloxane film could be stretched 250 times, after which it returned to its original state, while the skin can only be stretched 180 times), in addition, the authors of the work claim that their material is better suited for wound dressing. than conventional silicone and polyurethane hydrogels.

The process of applying the film to the skin takes place in two stages and is similar to a conventional cosmetic procedure: first, a polysiloxane raw material is applied, and then a catalyst is added, which triggers the formation of additional chemical crosslinks between the siloxane molecules.

The most important thing is that the whole procedure has already been tested on volunteers: the film itself cannot be seen in any way, but at the same time it improves the appearance of the skin itself - for example, with the help of a new product, it was possible to reduce wrinkles and bags under the eyes. In other words, the siloxane film returned to the aged skin the lost firmness and elasticity.

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