Akihiko Tanioka and Mitsuhiro Takahashi wrote about Zetta nanofibers in a specialized book published by the world’s largest publisher “Springer”.

High-Performance and Specialty Fibers – Concepts, Technology and Modern Applications of Man-Made Fibers for the Future “Chapter 16 Nanofiber, 273-283” Springer 2016,Akihiko Tanioka and Mitsuhiro Takahashi,

Springer is one of the largest publishers in the world.
Tanioka and Takahashi wrote about Zetta-type nanofibers at the request of the publisher in “High-Performance and Specialty Fibers” published in 2016.

This shows that Zetta nanofibers are highly evaluated by researchers and engineers.