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Published online by Cambridge University Press: 20 January 2012
Recently, an inexpensive 3D lithography technique was developed by ProfessorNicholas Fang at the University of Illinois where a projector is used incombination with a Microsoft® PowerPoint presentation to expose the liquidnegative-tone photoresist 1,6-hexanediol diacrylate in a layer-by-layerfashion. Where Professor Fang initially used this method as a teaching tool,we have used the inexpensive 3D printing technique to create 3D structuresof fumarate based polymers. This class of polymers are liquids at roomtemperature which makes them ideal for the projector based lithographytechnique when used in combination with the photoinitiatorbisphenyl(2,4,6-trimethylbenzoyl)-phosphine oxide (BAPO). Furthermore, thefumarate based materials are biocompatible and are suitable candidates fortissue engineering applications.