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Meeting MS&T21: Materials Science & Technology
Symposium Porous Materials for Biomedical Applications
Presentation Title P2-7: 3D Printing Seamless Hydrogels for In-vivo Pressure Sensing Devices
Author(s) Ashwin Velraj, Jeffrey Scott Bates
On-Site Speaker (Planned) Ashwin Velraj
Abstract Scope Novel additive manufacturing technologies have inspired researchers to explore materials that can deliver desired functionalities within a complicated design structure. The use of custom biomaterials as inks for 3D-printing has been explored to curate features that are otherwise near-impossible to obtain through conventional methods where structural delamination causes device failures. Here, we investigate the customization of Stereolithography (SLA) printing of polymer bio-inks using UV-photo-crosslinking mechanism to obtain a seamless single walled hydrogel tube construct with cross-sectional diameters ranging from 3000 to 100 microns. An aqueous composition of acrylated gelatin and poly(ethylene glycol) with biocompatible photo-initiators sensitive to 405 nm UV radiation are explored as bioinks for SLA 3D-printing. Such material compositions are great candidates in implantable device fabrication that react to bodily changes in a controlled manner. Further development of these hydrogel tubes by embedding pressure sensing circuitry, allows dynamic measurement of pressure changes within the eye to monitor glaucoma.
Proceedings Inclusion? Planned: At-meeting proceedings


Corrosion of Mechanically Milled, Annealed, and Biocompatible Magnesium Alloys for Osteopathic Tissue Regeneration.
Multifunctional Artificial Artery from Direct 3D Printing with Built-in Ferroelectricity and Tissue-matching Modulus for Real-time Sensing and Occlusion Monitoring
P2-7: 3D Printing Seamless Hydrogels for In-vivo Pressure Sensing Devices
P2-8: In vitro Investigation and Characterization of Resorption and Degradation Behavior of X-Ca-alginate Aerogels for Tissue Scaffold Applications
Synthesis and Characterization of Porous Diopside Scaffold Synthesized Using Rice Husk as a Space Holder Material for Orthopedic Application

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