STTR Phase II: Benign Thin Film Composite Particles for Protection from UVA/UVB - Rays

这一小型企业技术转移研究(STTR)第二阶段项目旨在将表面钝化的复合二氧化钛/氧化锌颗粒商业化，以实现对UVA和UVB辐射的良性防护。复合粒子是通过新的原子层沉积(ALD)技术制造的。这些材料主要用于防晒护肤配方；惰性涂层可以使微粒在各种配方中轻松分散，并防止活性二氧化钛或氧化锌与皮肤直接接触。在更广泛的护肤产品中引入新的、更有效的UVA/UVB防护措施，可以帮助解决阳光诱导的皮肤癌这一主要健康问题。这个第二阶段的项目将专注于改进材料设计，更大规模的生产，并证明这些复合材料在UVA/UVB透过率和防晒因子的配方中的有效性。

This Small Business Technology Transfer Research (STTR) Phase II project provides for the commercialization of surface-passivated composite titania/zinc oxide particles for benign protection from UVA and UVB radiation. The composite particles are manufactured via novel atomic layer deposition (ALD) technology. These materials are targeted at use in sunblock skin care formulations; the inert coating will allow easy dispersion of the particles in a variety of formulations, and will prevent direct contact between active titania or zinc oxide and the skin. The major health problem of sun-induced skin cancer could be helped with the introduction of new, more effective UVA/UVB protection in a wider variety of skin care products.This Phase II project will focus on refining the material design, production at larger scale, and proving the effectiveness of these composites in formulations for UVA/UVB transmittance and sun protection factors.