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3D printing of biocompatible low molecular weight gels: Imbricated structures with sacrificial and persistent N-alkyl-d-...

Published in Journal of colloid and interface science

We have shown earlier that low molecular weight gels based on N-heptyl-d-galactonamide hydrogels can be 3D printed by solvent exchange, but they tend to dissolve in the printing bath. We wanted to explore the printing of less soluble N-alkyl-d-galactonamides with longer alkyl chains. Less soluble hydrogels could be good candidates as cell culture s...

A nonlinear optimization method for large shape morphing in 3D printed pneumatic lattice structures

Published in Smart Materials and Structures

Shape morphing has been increasingly investigated as a solution to increase the functionality and efficiency of structures. The main criteria to assess the quality of a shape morphing structure in this paper are: accuracy of deformation and range and number of achievable target shapes. The lightweight lattice structures used in this work inherently...

In situ resource utilization of Martian regolith simulants through wet-processing for unfired clay structures and sinter...

Scientific exploration of extraterrestrial planets has gripped human imagination since the advent of space travel. A human mission to Mars could produce insights into the essential questions of how, when and where life began on Earth. Due to the vast distance involved and long crew residence time on Mars (Earth and Mars orbits only interject every ...

FLUID INTERFACE SUPPORTED PRINTING FOR THREE-DIMENSIONAL OBJECT FABRICATION

Stereolithography (SLA) 3D printing is a vat photopolymerization additive manufacturing process that utilizes photocurable resin, which requires sacrificial supporting structures on part overhangs, increasing material waste and post-processing time. This study details a novel process for conducting top-down SLA 3D printing from a thin resin layer l...

Additive Manufacturing of Carbon Steels Through Direct Ink Write Printing of Oxide Precursors

A method for additive manufacturing of various carbon steels from low cost and stable oxide powders is presented. This method uses direct ink write (DIW) processes to extrude inks composed of oxide powders, plastic binders, and solvents. Oxide powders are synthesized into viscous inks through mechanical mixing with a plastic binder and solvents. In...

Modeling of Material Jetting Additive Manufacturing with Applications to Paper Machine Fabrics

Material jetting-based (MJ) additive manufacturing (AM) is a promising manufacturing technology uniquely suited to enable new innovation, especially at the mesoscale, like novel paper machine press fabrics. The objective of this research is to improve the understanding of mesoscale feature fabrication via material jetting AM and improve our underst...

Antifungal effect, surface roughness, and cytotoxicity of three-dimensionally printed denture base with phytoncide-fille...

Published in Journal of dentistry

To produce three-dimensionally (3D) printed removable denture bases with antifungal activity using microencapsulation of phytochemicals that inhibit Candida albicans growth. Two types of phytoncide oil extract A and B were micro-encapsulated. The phytoncide-filled microcapsules were mixed with denture base resin for 3D printing with various concent...

3D printed tubular lattice metamaterials for mechanically robust stents

Coronary artery disease (CAD) is the narrowing or blockage of the coronary arteries, usually caused by atherosclerosis. An interventional procedure using stents is a promising approach for treating CAD because stents can effectively open narrowed coronary arteries to improve blood flow to the heart. However, stents often suffer from catastrophic fa...