RRC ID 76414
Author Mubarok W, Elvitigala KCML, Kotani T, Sakai S.
Title Visible light photocrosslinking of sugar beet pectin for 3D bioprinting applications.
Journal Carbohydr Polym
Abstract Herein, we report the hydrogelation of sugar beet pectin (SBP) via visible light-mediated photocrosslinking and its applications in extrusion-based 3D bioprinting. Rapid hydrogelation (<15 s) was achieved by applying 405 nm visible light to an SBP solution in the presence of tris(bipyridine)ruthenium(II) chloride hexahydrate ([Ru(bpy)3]2+) and sodium persulfate (SPS). The mechanical properties of the hydrogel could be tuned by controlling the visible light irradiation time and concentrations of SBP, [Ru(bpy)3]2+, and SPS. High-fidelity 3D hydrogel constructs were fabricated by extruding inks containing 3.0 wt% SBP, 1.0 mM [Ru(bpy)3]2+, and 1.0 mM SPS. Human hepatoblastoma (HepG2) cells encapsulated in SBP hydrogels remained viable and metabolically active after 14 d of culture. Overall, this study demonstrates the feasibility of applying SBP and a visible light-mediated photocrosslinking system to the 3D bioprinting of cell-laden constructs for tissue engineering applications.
Volume 316
Pages 121026
Published 2023-9-15
DOI 10.1016/j.carbpol.2023.121026
PII S0144-8617(23)00491-5
PMID 37321724
MeSH Beta vulgaris* Bioprinting* Humans Hydrogels Light Pectins Sugars
IF 7.182
Resource
Human and Animal Cells Hep G2(RCB1886)