132. continuous 3d printing of biogenic polyurethanes

Department: Mechanical & Aerospace Engineering
Research Institute Affiliation: Graduate Program in Materials Science and Engineering
Faculty Advisor(s): Shaochen Chen

Primary Student
Name: Pengrui Wang
Email: pew036@ucsd.edu
Phone: 858-822-7856
Grad Year: 2019

Abstract
Photo-sensitive diurethanes were prepared from a green chemistry synthesis pathway based on methacrylate-functionalized six-membered cyclic carbonate and biogenic amines. A continuous optical 3D printing method for the diurethanes was developed to create user-defined gradient stiffness and smooth complex surface microstructures in seconds. The green chemistry-derived polyurethane (gPU) showed high optical transparency and we demonstrate the ability to tune the material stiffness of the printed structure along a gradient by controlling the exposure time and selecting various amine compounds. High resolution 3D biomimetic structures with smooth curves and complex contours were printed using our gPU. High cell viability (over 95%) was demonstrated during cyto-compatibility testing using C3H 10T1/2 cells seeded directly on the printed structures. Overall, 3D printed bio-compatible polyurethane improved current material option for biomedical device fabrication and tissue engineering applications.

Industry Application Area(s)
Life Sciences/Medical Devices & Instruments | Materials

Related Links:

  1. http://pubs.acs.org/doi/abs/10.1021/acsami.6b12500

Related Files:

  1. Poster4.pdf

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