The model is designed to simulate the skin’s protective barrier, which shields the body from harmful substances and pathogens. It also mimics the skin’s ability to regulate temperature and moisture, which are crucial for maintaining overall health. The research team used advanced 3D printing technology to create the prototype.
The scientists’ model reproduces the stratified formation of epidermal layers using immortalized keratinocytes on a 3D polycarbonate matrix. This matrix is designed with specific porosity to facilitate optimal attachment, growth, and differentiation of keratinocytes within a multilayered structure. Immortalized keratinocytes are meticulously seeded on the matrix surface to create a continuous epidermal layer. This innovative model allows for high-tech clinical studies to evaluate the biological effects and permeability of drugs and cosmetic formulations, significantly reducing the need for animal testing in research. Currently, the scientists at CBSBB and BAS are investigating the effects of UVA and UVB rays on skin photoaging and exploring natural products for sun protection.
This has spurred a shift towards alternative photoprotective solutions. The development of organic photoprotective compounds presents several challenges. These compounds must provide effective UV protection while being safe for human use. The chemical structure of these compounds is crucial, as it determines their ability to absorb or reflect UV radiation. The absorption spectrum of the compound must cover the full range of harmful UV rays, from UVA to UVB. Moreover, the compound must be non-toxic and stable under various conditions.
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