Development of nanocomposite hydrogel using citrate-containing amorphous calcium phosphate and gelatin methacrylate

Bibliographic Details
Title: Development of nanocomposite hydrogel using citrate-containing amorphous calcium phosphate and gelatin methacrylate
Authors: Abhishek Indurkar, Kristaps Rubenis, Aldo R. Boccaccini, Janis Locs
Source: Frontiers in Bioengineering and Biotechnology, Vol 12 (2024)
Publisher Information: Frontiers Media S.A., 2024.
Publication Year: 2024
Collection: LCC:Biotechnology
Subject Terms: nanocomposite hydrogel, amorphous calcium phosphate, citrate-containing amorphous calcium phosphate, gelatin methacrylate, chemical crosslinking, biomaterials, Biotechnology, TP248.13-248.65
More Details: Nanocomposite hydrogels are suitable in bone tissue engineering due to their resemblance with the extracellular matrix, ability to match complex geometries, and ability to provide a framework for cell attachment and proliferation. The nanocomposite hydrogel comprises organic and inorganic counterparts. Gelatin methacrylate (GELMA) is an extensively used organic biomaterial in tissue engineering due to its excellent biocompatibility, biodegradability, and bioactivity. The photo-crosslinking of GELMA presents a challenge when aiming to create thicker nanocomposite hydrogels due to opacity induced by fillers, which obstructs the penetration of ultraviolet (UV) light. Therefore, using a chemical crosslinking approach, we have developed nanocomposite GELMA hydrogel in this study by incorporating citrate-containing amorphous calcium phosphate (ACP_CIT). Ammonium persulfate (APS) and Tetramethylethylenediamine (TEMED) were deployed to crosslink the methacrylate group of GELMA. The oscillatory shear tests have confirmed that crosslinking enhances both storage (G′) and loss modulus (G″) of GELMA. Subsequently, incorporation of ACP_CIT in GELMA hydrogel shows further enhancement in G′ and G″ values. In vitro analysis of the developed hydrogels revealed that chemical crosslinking and incorporation of ACP_CIT do not compromise the cytocompatibility of the GELMA. Hence, for developing nanocomposite GELMA hydrogels employing APS/TEMED crosslinking emerges as a promising alternative to photo-crosslinking.
Document Type: article
File Description: electronic resource
Language: English
ISSN: 2296-4185
Relation: https://www.frontiersin.org/articles/10.3389/fbioe.2024.1421415/full; https://doaj.org/toc/2296-4185
DOI: 10.3389/fbioe.2024.1421415
Access URL: https://doaj.org/article/88cc761cd8254d02a9670e1df583beed
Accession Number: edsdoj.88cc761cd8254d02a9670e1df583beed
Database: Directory of Open Access Journals
More Details
ISSN:22964185
DOI:10.3389/fbioe.2024.1421415
Published in:Frontiers in Bioengineering and Biotechnology
Language:English