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The creation of artificial coral using 3D printing technology is a complex process that involves a careful selection of materials and techniques. Relevant research papers provide insights into potential formulas and methods that could be adapted for 3D printing coral-like structures:
A study by Shi et al. (2020) explored the use of Selective Laser Sintering (SLS) to fabricate natural calcium carbonate/biopolymer composite imitation coral porous structures. This method involved transforming the surface of the 3D printed product into a hydroxyapatite thin layer by hydrothermal conversion reaction. The mechanical properties and porosity were optimized by adjusting the SLS processing parameters (Shi et al., 2020).
Wang et al. (2021) developed a protocol for 3D printing calcium carbonate (CaCO3) nanoparticles for coral replacement in bone tissue engineering. The scaffolds were subjected to a controlled hydrothermal process for incomplete conversion of carbonate to phosphate to produce CaCO3 scaffold covered by hydroxyapatite (HA), modifying its biocompatibility and degradation (Wang et al., 2021).
Research by Gutierrez-Heredia et al. (2018) presented a method for editing and printing 3D models of coral colonies, focusing on best practices for 3D printing processes and potential technologies suitable for specific attributes in this practice. This study provided insights into the innovative application of 3D printed inert reactive corals able to indicate environmental changes (Gutierrez-Heredia et al., 2018).
Wangpraseurt et al. (2020) developed 3D printed bionic corals capable of growing microalgae with high spatial cell densities. These hybrid photosynthetic biomaterials were produced with a 3D bioprinting platform, replicating morphological features of living coral tissue and the underlying skeleton, including optical and mechanical properties (Wangpraseurt et al., 2020).
These studies highlight the potential of using biocompatible materials and precise 3D printing techniques to create artificial coral structures, which could be adapted for use in a 3D printer system with the ability to push the material through tubing and quickly harden to form large coral structures.
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