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Title: Alginate hydrogel-mediated crystallization of calcium carbonate

Abstract

We documented a specific method for combining calcium ions and alginate molecules slowly and continuously in the mineralization system for the purpose of understanding the mediating function of alginate on the crystallization of calcium carbonate. The alginate was involved in the nucleation and the growth process of CaCO{sub 3}. The crystal size, morphology and roughness of crystal surface were significantly influenced by the type of the alginate, which could be accounted for by the length of the G blocks in alginate. A combination of Fourier transform infrared spectroscopy and thermogravimetric analysis showed that there were the chemical interactions between the alginate and the mineral phase. This strategic approach revealed the biologically controlled CaCO{sub 3} mineralization within calcium alginate hydrogels via the selective nucleation and the confined crystallization of CaCO{sub 3}. The results presented here could contribute to the understanding of the mineralization process in hydrogel systems. -- Graphical abstract: Schematic illustration of the growth of calcite aggregates with different morphologies obtained from (a) Low G alginate gels and (b) High G alginate gels. Display Omitted highlights: > We use a specific method for combining calcium ions and alginate molecules slowly and continuously in the mineralization system to understand the mediatingmore » function of alginate on the crystallization of CaCO{sub 3} crystals. > The crystal size, morphology and crystal surface roughness are influenced by the length of G blocks in alginate. There are chemical interactions between the alginate and the mineral phase. > We propose a potential mechanism of CaCO{sub 3} crystallization within High G and Low G calcium alginate hydrogel.« less

Authors:
 [1];  [1]
  1. State Key Laboratory of New Ceramics and Fine Processing, Department of Materials Science and Engineering, Tsinghua University, Haidian District, Beijing 100084 (China)
Publication Date:
OSTI Identifier:
21504076
Resource Type:
Journal Article
Journal Name:
Journal of Solid State Chemistry
Additional Journal Information:
Journal Volume: 184; Journal Issue: 5; Other Information: DOI: 10.1016/j.jssc.2011.03.008; PII: S0022-4596(11)00105-8; Copyright (c) 2011 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.; Journal ID: ISSN 0022-4596
Country of Publication:
United States
Language:
English
Subject:
37 INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY; ALGINATES; CALCITE; CALCIUM CARBONATES; CALCIUM IONS; CRYSTALLIZATION; HYDROGELS; MINERALIZATION; MORPHOLOGY; NUCLEATION; THERMAL GRAVIMETRIC ANALYSIS; ALKALINE EARTH METAL COMPOUNDS; CALCIUM COMPOUNDS; CARBON COMPOUNDS; CARBONATE MINERALS; CARBONATES; CHARGED PARTICLES; CHEMICAL ANALYSIS; COLLOIDS; DISPERSIONS; GELS; GRAVIMETRIC ANALYSIS; IONS; MINERALS; OXYGEN COMPOUNDS; PHASE TRANSFORMATIONS; QUANTITATIVE CHEMICAL ANALYSIS; THERMAL ANALYSIS

Citation Formats

Ma, Yufei, and Feng, Qingling, E-mail: biomater@mail.tsinghua.edu.c. Alginate hydrogel-mediated crystallization of calcium carbonate. United States: N. p., 2011. Web. doi:10.1016/j.jssc.2011.03.008.
Ma, Yufei, & Feng, Qingling, E-mail: biomater@mail.tsinghua.edu.c. Alginate hydrogel-mediated crystallization of calcium carbonate. United States. doi:10.1016/j.jssc.2011.03.008.
Ma, Yufei, and Feng, Qingling, E-mail: biomater@mail.tsinghua.edu.c. Sun . "Alginate hydrogel-mediated crystallization of calcium carbonate". United States. doi:10.1016/j.jssc.2011.03.008.
@article{osti_21504076,
title = {Alginate hydrogel-mediated crystallization of calcium carbonate},
author = {Ma, Yufei and Feng, Qingling, E-mail: biomater@mail.tsinghua.edu.c},
abstractNote = {We documented a specific method for combining calcium ions and alginate molecules slowly and continuously in the mineralization system for the purpose of understanding the mediating function of alginate on the crystallization of calcium carbonate. The alginate was involved in the nucleation and the growth process of CaCO{sub 3}. The crystal size, morphology and roughness of crystal surface were significantly influenced by the type of the alginate, which could be accounted for by the length of the G blocks in alginate. A combination of Fourier transform infrared spectroscopy and thermogravimetric analysis showed that there were the chemical interactions between the alginate and the mineral phase. This strategic approach revealed the biologically controlled CaCO{sub 3} mineralization within calcium alginate hydrogels via the selective nucleation and the confined crystallization of CaCO{sub 3}. The results presented here could contribute to the understanding of the mineralization process in hydrogel systems. -- Graphical abstract: Schematic illustration of the growth of calcite aggregates with different morphologies obtained from (a) Low G alginate gels and (b) High G alginate gels. Display Omitted highlights: > We use a specific method for combining calcium ions and alginate molecules slowly and continuously in the mineralization system to understand the mediating function of alginate on the crystallization of CaCO{sub 3} crystals. > The crystal size, morphology and crystal surface roughness are influenced by the length of G blocks in alginate. There are chemical interactions between the alginate and the mineral phase. > We propose a potential mechanism of CaCO{sub 3} crystallization within High G and Low G calcium alginate hydrogel.},
doi = {10.1016/j.jssc.2011.03.008},
journal = {Journal of Solid State Chemistry},
issn = {0022-4596},
number = 5,
volume = 184,
place = {United States},
year = {2011},
month = {5}
}