TY - GEN
T1 - Programming via printing
T2 - 42nd Society for Biomaterials Annual Meeting and Exposition 2019: The Pinnacle of Biomaterials Innovation and Excellence
AU - Pieri, Katy
AU - Chando, Paul
AU - Soman, Pranav
AU - Henderson, James H.
N1 - Publisher Copyright:
© 2019 Omnipress - All rights reserved.
PY - 2019
Y1 - 2019
N2 - Statement of Purpose: The ability to 3D print shape-memory polymers (SMPs) already pre-programmed for a subsequent function, such as a specific shape change, could have broad impact across diverse biomedical fields. Currently, 3D printed SMPs must be programmed in a separate step following the printing process, which requires that there be a means of physically deforming the SMP to impart a strain pattern inverse to that desired during recovery (Fig. 1). Available methods for producing strains in an SMP following printing are limited to simple deformations such as uniaxial compressions or tensions; creating complex strains is generally not feasible. However, recent studies suggest that the extrusion process during 3D printing can trap strains within the material1,2. With the long-term goal of program programing 1D, 2D, or 3D functional, single-material parts during, rather than following, printing, the goal of the present study was to quantify the extent to which strains can be trapped into simple 1D and 2D geometries during printing. To achieve this goal, we systematically studied the effect of temperature, printing speed, the multiplier print parameter, and fiber orientation on strain trapping in a cyto-and biocompatible SMP.
AB - Statement of Purpose: The ability to 3D print shape-memory polymers (SMPs) already pre-programmed for a subsequent function, such as a specific shape change, could have broad impact across diverse biomedical fields. Currently, 3D printed SMPs must be programmed in a separate step following the printing process, which requires that there be a means of physically deforming the SMP to impart a strain pattern inverse to that desired during recovery (Fig. 1). Available methods for producing strains in an SMP following printing are limited to simple deformations such as uniaxial compressions or tensions; creating complex strains is generally not feasible. However, recent studies suggest that the extrusion process during 3D printing can trap strains within the material1,2. With the long-term goal of program programing 1D, 2D, or 3D functional, single-material parts during, rather than following, printing, the goal of the present study was to quantify the extent to which strains can be trapped into simple 1D and 2D geometries during printing. To achieve this goal, we systematically studied the effect of temperature, printing speed, the multiplier print parameter, and fiber orientation on strain trapping in a cyto-and biocompatible SMP.
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M3 - Conference contribution
AN - SCOPUS:85065408242
T3 - Transactions of the Annual Meeting of the Society for Biomaterials and the Annual International Biomaterials Symposium
SP - 910
BT - Society for Biomaterials Annual Meeting and Exposition 2019
PB - Society for Biomaterials
Y2 - 3 April 2019 through 6 April 2019
ER -