Researcher

A circular society: producing materials from air

Keiji Numata
Graduate School of Engineering

Resources such as food, energy, and raw materials for chemicals are limited and risk depletion if no action is taken. Additionally, pollution from non-biodegradable materials like plastics remains a serious concern. My research aims to create polymer materials from abundant sources like air and seawater, developing a system where these materials can naturally return to the environment after use. One approach involves utilizing marine purple photosynthetic bacteria to fix carbon dioxide and nitrogen from the air, creating protein materials such as artificial spider silk. By establishing production platforms for materials that avoid competition with energy and food resources, decompose naturally, and can serve as agricultural resources, I hope to contribute to a sustainable society that we can be proud to pass on to future generations.

URL

https://kdb.iimc.kyoto-u.ac.jp/profile_private/en.c3a3847b9f729b1d.html
https://research.kyoto-u.ac.jp/documentary/d025/ (in Japanese)

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