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  4. Pore Size Manipulation in 3D Printed Cryogels Enables Selective Cell Seeding
 
research article

Pore Size Manipulation in 3D Printed Cryogels Enables Selective Cell Seeding

Serex, Ludovic  
•
Braschler, Thomas
•
Filippova, Aleksandra
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2018
Advanced Materials Technologies

Cryogels are macroporous materials that display remarkable properties, such as high pore interconnection, large surface to volume ratio, and high mechanical stability, making them good candidates for 3D cell culture. However, shaping cryogels remains challenging because of the harsh conditions of synthesis at temperatures as low as −80 °C. In this paper, a solution for the 3D printing of functionalized cryogels is proposed. A microfabricated dispensing probe allowing the last second mixing of cryogel precursors as well as control of the temperature of the extruded material during printing is presented. This dispensing tool allows multilayer 3D printing of cryogels with on demand local pore size change through the control in temperature of the dispensed solution. Moreover, thanks to advanced functionalization of the scaffold, cells can be cultured in 3D within the printed scaffold and exhibited spreading. The ability to tune the pore size of the printed cryogels allows to select during printing where cells will get seeded.

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Type
research article
DOI
10.1002/admt.201700340
Author(s)
Serex, Ludovic  
Braschler, Thomas
Filippova, Aleksandra
Rochat, Ariane
Béduer, Amélie
Bertsch, Arnaud
Renaud, Philippe
Date Issued

2018

Publisher

Wiley

Published in
Advanced Materials Technologies
Article Number

1700340

Editorial or Peer reviewed

REVIEWED

Written at

EPFL

EPFL units
LMIS4  
FunderGrant Number

FNS

PP00P2_163684

FNS

PZ00P2_161347

Use this identifier to reference this record
https://infoscience.epfl.ch/handle/20.500.14299/144535
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