Abstract
Digital Light Processing (DLP) 3D printing process has been used with standard, commercially available ultra-high and tough (UHT) photopolymer resin to produce for various 3D parts. Polyethylene glycol (PEG) biopolymer has been used extensively in biomedicine due to its excellent performance in biocompatibility and hydrophilicity. However, it offers low mechanical strength. The inclusion of maghemite (γ-Fe2O3) nanoparticles have been found to be able to increase the mechanical properties of TE scaffolds fabricated using a combination of processes. This study aims at exploring the possibility of using various mixtures which consists of different combinations UHT resin, PEG solution and γ-Fe2O3 nanoparticles with the DLP 3D printer system. The effects of various quantities of mixtures were investigated in terms of their mechanical and biocompatibility properties with a view of producing TE scaffolds. The results from this study proves that the simpler, DLP 3D printer system can be used with a mixture of standard photopolymer and biopolymer resins, and nanoparticles. The addition of PEG and γ-Fe2O3 enhanced the mechanical and biocompatibility properties of the developed structure. Copyright © VBRI Press.
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