Three-Dimensional Printing of Bisphenol A-Free Polycarbonates

Forskningsoutput: TidskriftsbidragArtikel i vetenskaplig tidskrift

Abstract

Polycarbonates are widely used in food packages, drink bottles, and various healthcare products such as dental sealants and tooth coatings. However, bisphenol A (BPA) and phosgene used in the production of commercial polycarbonates pose major concerns to public health safety. Here, we report a green pathway to prepare BPA-free polycarbonates (BFPs) by thermal ring-opening polymerization and photopolymerization. Polycarbonates prepared from two cyclic carbonates in different mole ratios demonstrated tunable mechanical stiffness, excellent thermal stability, and high optical transparency. Three-dimensional (3D) printing of the new BFPs was demonstrated using a two-photon laser direct writing system and a rapid 3D optical projection printer to produce structures possessing complex high-resolution geometries. Seeded C3H10T1/2 cells also showed over 95% viability with potential applications in biological studies. By combining biocompatible BFPs with 3D printing, novel safe and high-performance biomedical devices and healthcare products could be developed with broad long-term benefits to society.

Detaljer

Författare
  • Wei Zhu
  • Sang Hyun Pyo
  • Pengrui Wang
  • Shangting You
  • Claire Yu
  • Jeffrey Alido
  • Justin Liu
  • Yew Leong
  • Shaochen Chen
Enheter & grupper
Externa organisationer
  • University of California, San Diego
Forskningsområden

Ämnesklassifikation (UKÄ) – OBLIGATORISK

  • Medicinska material och protesteknik

Nyckelord

Originalspråkengelska
Sidor (från-till)5331-5339
Antal sidor9
TidskriftACS Applied Materials and Interfaces
Volym10
Utgivningsnummer6
StatusPublished - 2018 feb 14
PublikationskategoriForskning
Peer review utfördJa