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Meeting MS&T22: Materials Science & Technology
Symposium 3D Printing of Biomaterials and Devices
Presentation Title Solvent Cast 3D Printing with Different Molecular Weight Polymers
Author(s) Tyler French, John W Tolbert, Lesley W Chow
On-Site Speaker (Planned) Tyler French
Abstract Scope Solvent-cast 3D-printing (SCP) is a novel technique for fabricating high-resolution polymeric biomaterial scaffolds. Inks contain a polymer dissolved in a volatile solvent, which evaporates upon extrusion to leave behind a solid polymer filament. The goal of this work centers on characterizing how polymer molecular weight affects the mechanical properties of SCP scaffolds. Here, different molecular weights of poly(caprolactone) (80 kDa and 25 kDa) were co-dissolved in hexafluoroisopropanol at three respective ratios: 100:0, 90:10, and 80:20. Viscosity was measured using parallel plate rheology and matched to a set of known printing parameters. Filament diameters were measured using scanning electron microscopy images to show similar filament morphology and scaffold architectures across all inks. Tensile testing revealed that increasing 25 kDa PCL content correlated with decreasing filament stiffness. These data demonstrate how we can modify mechanical properties independently of scaffold architecture to investigate cell response to well-defined physical properties.
Proceedings Inclusion? Undecided


3-D Printing in Regenerative Engineering
3D Bioprinting with Engineered Living Materials for Advanced Biofabrication
3D Printing Integrated with Controlled Delivery for In Situ Tissue Engineering of Complex and Inhomogeneous Tissues from Endogenous Stem/Progenitor Cells
3D Printing of Nanomaterials-based Biomedical Electronics
3D Printing of Zonal-structured Scaffolds for Complex Tissue Engineering
3D Printing Strategies to Fabricate Complex Scaffolds for Tissue Engineering Applications
Additive Manufacturing Process Simulation of Polyetherimide Porous Scaffolds for Bone Tissue Engineering Applications
Biohybrid Functional Material Design by Engineered Peptides
C-1: Surface Treatment of Titanium by Alkali treatment and Magnesium Deposition for Orthopedic Application
Effect of Printing Parameters on 3D-printed Biodegradable Biopolymer-metal Composite Material
Effect of Sr2+ and Ca2+ ions on 3D printed Beta Tricalcium-Phosphate/Alginate Composite Scaffolds for Bone Tissue Engineering
Implant Optimization Guided by Biomimetic Insight
Interlocked Bone Scaffolds with BMP Induced Osteogenesis with Use of 3D Printed Molds
Laser-Based 3D Printing for Medical Applications
Mechanical and Electrical Properties of 3D Printed Wearable Structures
Periodic Cellular Ceramic Structures by Replication of Additive Manufactured Templates
Selective Artificial Neural Network by Targeted Delivery of Neuronal Cells Using Magnetically Controlled 3D Printed Microrobots
Sheet Lamination Additive Manufacturing (SLAM) – A Viable Approach to Resorbable 3D Constructs for Bone Tissue Engineering
Solvent Cast 3D Printing with Different Molecular Weight Polymers
The Regulatory Roles of the Substrate Microenvironment in Cancer Progression in Tissue Engineering Scaffolds

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