Injectable Microporous Annealed Crescent‐Shaped (MAC) Particle Hydrogel Scaffold for Enhanced Cell Infiltration

Abstract: Hydrogels are widely used for tissue engineering applications to support cellular growth, yet the tightly woven structure often restricts cell infiltration and expansion. Consequently, granular hydrogels with microporous architectures have emerged as a new class of biomaterial. Particularly, the development of microporous annealed particle (MAP) hydrogel scaffolds has shown improved stability and integration with host tissue. However, the predominant use of spherically shaped particles limits scaffold porosity, potentially limiting the level of cell infiltration. Here, a novel microporous annealed crescent‐shaped particle (MAC) scaffold that is predicted to have improved porosity and pore interconnectivity in silico is presented. With microfluidic fabrication, tunable cavity sizes that optimize interstitial void space features are achieved. In vitro, cells incorporated into MAC scaffolds form extensive 3D multicellular networks. In vivo, the injectable MAC scaffold significantly enhances cell infiltration compared to spherical MAP scaffolds, resulting in increased numbers of myofibroblasts and leukocytes present within the gel without relying on external biomolecular chemoattractants. The results shed light on the critical role of particle shape in cell recruitment, laying the foundation for MAC scaffolds as a next‐generation granular hydrogel for diverse tissue engineering applications.

Location
Deutsche Nationalbibliothek Frankfurt am Main
Extent
Online-Ressource
Language
Englisch

Bibliographic citation
Injectable Microporous Annealed Crescent‐Shaped (MAC) Particle Hydrogel Scaffold for Enhanced Cell Infiltration ; day:27 ; month:11 ; year:2023 ; extent:13
Advanced healthcare materials ; (27.11.2023) (gesamt 13)

Creator
Tang, Rui‐Chian
Shang, Lily
Scumpia, Philip O.
Di Carlo, Dino

DOI
10.1002/adhm.202302477
URN
urn:nbn:de:101:1-2023112714315079481105
Rights
Open Access; Der Zugriff auf das Objekt ist unbeschränkt möglich.
Last update
15.08.2025, 7:32 AM CEST

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Associated

  • Tang, Rui‐Chian
  • Shang, Lily
  • Scumpia, Philip O.
  • Di Carlo, Dino

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