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Rapid Volumetric Bioprinting of Decellularized Extracellular Matrix Bioinks
Journal article   Peer reviewed

Rapid Volumetric Bioprinting of Decellularized Extracellular Matrix Bioinks

Liming Lian, Maobin Xie, Zeyu Luo, Zhenrui Zhang, Sushila Maharjan, Xuan Mu, Carlos Ezio Garciamendez-Mijares, Xiao Kuang, Jugal Kishore Sahoo, Guosheng Tang, …
Advanced materials (Weinheim), Vol.36(34), e2304846
01/22/2024
DOI: 10.1002/adma.202304846
PMCID: PMC11260906
PMID: 38252896
url
https://pmc.ncbi.nlm.nih.gov/articles/PMC11260906/pdf/nihms-1968378.pdfView
Open Access

Abstract

Decellularized extracellular matrix (dECM)‐based hydrogels are widely applied to additive biomanufacturing strategies for relevant applications. The extracellular matrix components and growth factors of dECM play a crucial role in cell adhesion, growth, and differentiation. However, the generally poor mechanical properties and printability have remained as major limitations for dECM‐based materials. In this study, heart‐derived dECM (h‐dECM) and meniscus‐derived dECM (Ms‐dECM) bioinks in their pristine, unmodified state supplemented with the photoinitiator of tris(2,2‐bipyridyl) dichlororuthenium(II) hexahydrate and sodium persulfate, demonstrate cytocompatibility with volumetric bioprinting processes. This recently developed bioprinting modality illuminates a dynamically evolving light pattern into a rotating volume of the bioink, and thus decouples the requirement of mechanical strengths of bioprinted hydrogel constructs with printability, allowing for the fabrication of sophisticated shapes and architectures with low‐concentration dECM materials that set within tens of seconds. As exemplary applications, cardiac tissues are volumetrically bioprinted using the cardiomyocyte‐laden h‐dECM bioink showing favorable cell proliferation, expansion, spreading, biomarker expression, and synchronized contractions; whereas the volumetrically bioprinted Ms‐dECM meniscus structures embedded with human mesenchymal stem cells present appropriate chondrogenic differentiation outcomes. This study supplies expanded bioink libraries for volumetric bioprinting and broadens utilities of dECM towards tissue engineering and regenerative medicine. This article is protected by copyright. All rights reserved
Tissue Engineering decellularized extracellular matrix(dECM) volumetric additive manufacturing bioprinting vat-polymerization visible light

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