4D Printing Nanocomposite Hydrogel Based on PNIPAM and Prussian Blue Nanoparticles Using Stereolithography

Autor: Tristan Pelluau, Thomas Brossier, Michel Habib, Saad Sene, Gautier Félix, Joulia Larionova, Sébastien Blanquer, Yannick Guari
Jazyk: angličtina
Rok vydání: 2024
Předmět:
Zdroj: Macromolecular Materials and Engineering, Vol 309, Iss 3, Pp n/a-n/a (2024)
Druh dokumentu: article
ISSN: 1439-2054
1438-7492
DOI: 10.1002/mame.202300305
Popis: Abstract The potential of photoactive Prussian blue nanoparticles dispersed in thermo‐responsive PNIPAM hydrogels in 4D printing using a stereolithography is investigated with digital light processing. The proportion of Prussian blue nanoparticles used in the resin is chosen to deliver a significant photothermal effect providing a heating above the volume phase transition temperature of the final nanocomposite hydrogels; while, giving only a limited effect on light scattering during the 3D printing process. Four formulations with various amounts of Prussian blue nanoparticles are used to print 3D structures with different shapes, such as Aztec pyramids, cylinders, gyroid porous cubes, and porous films. The shrinkage effect triggered by light irradiation at 808 nm on the as‐obtained nanocomposite hydrogels is demonstrated through the delivery of a representative molecule fluorescein and a triggered 4D shape‐morphing effect.
Databáze: Directory of Open Access Journals
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