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Title: Engineering natural pollen grains as multifunctional 3D printing materials
Authors: Chen, Shengyang
Shi, Qian
Jang, Taesik
Mohammed Shahrudin Ibrahim
Deng, Jingyu
Ferracci, Gaia
Tan, Wen See
Cho, Nam-Joon
Song, Juha
Keywords: Engineering::Materials
Issue Date: 2021
Source: Chen, S., Shi, Q., Jang, T., Mohammed Shahrudin Ibrahim, Deng, J., Ferracci, G., Tan, W. S., Cho, N. & Song, J. (2021). Engineering natural pollen grains as multifunctional 3D printing materials. Advanced Functional Materials, 31(49), 2106276-.
Project: A1983c0031
Journal: Advanced Functional Materials
Abstract: The development of multifunctional 3D printing materials from sustainable natural resources is a high priority in additive manufacturing. Using an eco-friendly method to transform hard pollen grains into stimulus-responsive microgel particles, we engineered a pollen-derived microgel suspension that can serve as a functional reinforcement for composite hydrogel inks and as a supporting matrix for versatile freeform 3D printing systems. The pollen microgel particles enabled the printing of composite inks and improved the mechanical and physiological stabilities of alginate and hyaluronic acid hydrogel scaffolds for 3D cell culture applications. Moreover, the particles endowed the inks with stimulus-responsive controlled release properties. The suitability of the pollen microgel suspension as a supporting matrix for freeform 3D printing of alginate and silicone rubber inks was demonstrated and optimized by tuning the rheological properties of the microgel. Compared with other classes of natural materials, pollen grains have several compelling features, including natural abundance, renewability, affordability, processing ease, monodispersity, and tunable rheological features, which make them attractive candidates to engineer advanced materials for 3D printing applications.
ISSN: 1616-301X
DOI: 10.1002/adfm.202106276
Schools: School of Chemical and Biomedical Engineering 
School of Materials Science and Engineering 
Rights: © 2021 Wiley-VCH GmbH. All rights reserved.
Fulltext Permission: none
Fulltext Availability: No Fulltext
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