Nisshinbo Holdings Inc.

Nisshinbo Industries, Inc.

Yukiko Ogushi

Yasuo Imashiro

Naokazu Sasaki

Mami Iizuka

Disclosed is an antibacterial nanofiber which comprises a polymer having an electron-withdrawing group and/or an electron-withdrawing atomic group and has an average fiber diameter of not less than 1 nm and less than 1000 nm, wherein the ratio of the binding energy of the minimum unit of the polymer at 25&#xb0; C. to the binding energy of the electron-withdrawing group and/or the electron-withdrawing atomic group contained in the minimum unit of the polymer at 25&#xb0; C. is 0.13 or greater. The nanofiber has an antibacterial activity by itself, and therefore can exhibit an antibacterial activity without the need of adding any antibacterial agent.

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Chiba, Japan

Yukiko Ogushi