Fabrication and characterisation of α-chitin nanofibers and highly transparent chitin films by pulsed ultrasonication

- α-Chitin nanofibers (∼20 nm) from prawn shell were fabricated via pulsed ultrasonic treatment (60 KHz, 300 W, pH = 7).
- We made highly transparent film (transmittance achieved 90.2% at 600 nm) and flexible ultralight foam using α-chitin nanofibers.
- This paper provides ultrasonication as a new way to fabricate ultralong nanofibers from natural polysaccharide materials.