Fabrication of safe UV protection particles

2016 Fiscal Year Final Research Report

• Project/Area Number: 15K14145
• Research Category: Grant-in-Aid for Challenging Exploratory Research
• Allocation Type: Multi-year Fund
• Research Field: Composite materials/Surface and interface engineering
• Research Institution: Yokohama National University
• Principal Investigator: Kanai Toshimitsu 横浜国立大学, 大学院工学研究院, 准教授 (10442948)
• Project Period (FY): 2015-04-01 – 2017-03-31
• Keywords: コロイド結晶 / ブラッグ反射 / マイクロ流体デバイス / 紫外線防御

Outline of Final Research Achievements

Spherical colloidal crystals with a diameter of less than 10 micrometer could be fabricated by microfluidic techniques. The droplets of the colloidal suspension were formed in the co-flow geometry, and the solvent of the droplets was evaporated in the straight collection capillary. This process offered the continuous fabrication of monodisperse spherical colloidal crystals without the addition of surfactants. The obtained spherical colloidal crystals with a diameter of 5 micrometer could block about 50% of the UV light.

Free Research Field

材料工学