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Minimally-Invasive and In-Vivo Hydrogel Patterning Method for In Situ Fabrication of Implantable Hydrogel Devices

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Title
Minimally-Invasive and In-Vivo Hydrogel Patterning Method for In Situ Fabrication of Implantable Hydrogel Devices
Author(s)
Gi Doo Cha; Minjeong Kim; Ok Kyu Park; Sung-Hyuk Sunwoo; Taegyu Kang; Wang Hee Lee; Seonghyeon Nam; Taeghwan Hyeon; Seung Hong Choi; Dae-Hyeong Kim
Publication Date
2023-09
Journal
SMALL METHODS, v.7, no.9
Publisher
WILEY-V C H VERLAG GMBH
Abstract
Despite advances in a wide range of device applications of hydrogels, including implantable ones, a method for deploying patterned hydrogel devices into the body in a minimally-invasive manner is not available yet. However, in situ patterning of the hydrogel in vivo has an obvious advantage, by which incision surgery for implantation of the hydrogel device can be avoided. Here, a minimally-invasive and in vivo hydrogel patterning method for in situ fabrication of implantable hydrogel devices is presented. The sequential application of injectable hydrogels and enzymes, with assistance of minimally-invasive surgical instruments, enables the in vivo and in situ hydrogel patterning. This patterning method can be achieved by adopting an appropriate combination of the sacrificial mold hydrogel and the frame hydrogel, in consideration of unique material properties of the hydrogels such as high softness, facile mass transfer, biocompatibility, and diverse crosslinking mechanisms. In vivo and in situ patterning of the hydrogels functionalized with nanomaterials is also demonstrated to fabricate the wireless heater and tissue scaffold, showcasing broad applicability of the patterning method.
URI
https://pr.ibs.re.kr/handle/8788114/14432
DOI
10.1002/smtd.202300032
ISSN
2366-9608
Appears in Collections:
Center for Nanoparticle Research(나노입자 연구단) > 1. Journal Papers (저널논문)
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