Effect of CO2 release behavior on the crosslinking degree of alginate hydrogels prepared with CaCO3 and carbonated water

Ryota Teshima; Shigehito Osawa; Kaoru Hirose; Yayoi Kawano; Akihiko Kikuchi; Takehisa Hanawa; Hidenori Otsuka

doi:10.1039/D4MA00257A

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Effect of CO₂ release behavior on the crosslinking degree of alginate hydrogels prepared with CaCO₃ and carbonated water†

Ryota Teshima,

*^a Shigehito Osawa,

‡^bc Kaoru Hirose,

^d Yayoi Kawano,

§^d Akihiko Kikuchi,

^e Takehisa Hanawa

^d and Hidenori Otsuka

^abc

Author affiliations

* Corresponding authors

^a Department of Chemistry, Graduate School of Science, Tokyo University of Science, 1-3 Kagurazaka, Shinjuku, Tokyo 162-8601, Japan
E-mail: 1322595@ed.tus.ac.jp

^b Department of Applied Chemistry, Faculty of Science, Tokyo University of Science, 1-3 Kagurazaka, Shinjuku, Tokyo 162-8601, Japan

^c Water Frontier Research Center (WaTUS), Research Institute for Science and Technology, Tokyo University of Science, 1-3 Kagurazaka, Shinjuku, Tokyo 162-8601, Japan

^d Department of Pharmacy, Faculty of Pharmaceutical Sciences, Tokyo University of Science, 2641 Yamazaki, Noda, Chiba 278-8510, Japan

^e Department of Materials Science and Technology, Faculty of Advanced Engineering, Tokyo University of Science, 6-3-1 Niijuku, Katsushika, Tokyo 125-8585, Japan

Abstract

Carbonated water facilitates the gelation of alginate and CaCO₃ solutions. The rapid release of CO₂ from the hydrogels after gelation resulted in a faster pH increase, lower amount of CaCO₃ dissolution, and lower crosslinking degree. The CO₂ release behavior, i.e., “post-gelation condition,” affects the degree of crosslinking, an essential parameter for determining hydrogel properties.

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Article information

DOI: https://doi.org/10.1039/D4MA00257A
Article type: Communication
Submitted: 13 Marts 2024
Accepted: 02 Jūn. 2024
First published: 05 Jūn. 2024
This article is Open Access

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Mater. Adv., 2024,5, 6368-6372

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Effect of CO₂ release behavior on the crosslinking degree of alginate hydrogels prepared with CaCO₃ and carbonated water

R. Teshima, S. Osawa, K. Hirose, Y. Kawano, A. Kikuchi, T. Hanawa and H. Otsuka, Mater. Adv., 2024, 5, 6368 DOI: 10.1039/D4MA00257A

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