Excessive bleeding during surgery or trauma must be stopped immediately before it becomes deadly. In this lit update, scientists from Nankai University developed a chitosan, derived from shrimp shells, microchannelled sponge-like hemostats using 3D printing that can stop bleeding within 2 minutes!

Reference:
Du, X., Wu, L., Yan, H. et al. Microchannelled alkylated chitosan sponge to treat noncompressible hemorrhages and facilitate wound healing. Nat Commun 12, 4733 (2021). 

Intro/Outro music:
Music by minwbu from Pixabay

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