World’s smallest 3D bioprinter could help surgeons repair vocal cords

World’s Smallest 3D Bioprinter for Vocal Cord Repair

A new, flexible 3D bioprinter inspired by an elephant’s trunk can deliver healing hydrogels after surgery to help repair vocal cords.

Surgery is sometimes necessary to remove growths or cysts from vocal cords.

The device sports a 2.7-millimetre-wide printhead at the end of a long, flexible arm that moves like an elephant’s trunk.

This innovation might assist physicians in delivering healing hydrogels after surgery.

Author’s summary: Smallest 3D bioprinter helps surgeons.

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Nature Nature — 2025-10-29

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