The Combined Effects of Sr(II) and Poly(Acrylic Acid) on the Morphology of Calcite
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2019
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Abstract
Biomineralization of calcium carbonate has interesting characteristics of intricate morphology formation with controlled crystal polymorphs. In particular, modification of calcite morphology with diverse additives has been the focus of many biomimetic and bioinspired studies. The possible role of strontium ions in enhancing the morphology-modifying ability of macromolecules was investigated. In the present study, concentrations of strontium ions were comparable to that in seawater, and anionic poly(acrylic acid) and cationic poly(ethylene imine) were used as model macromolecules. When strontium ions were combined with anionic poly(acrylic acid), new types of calcite surfaces, most likely {hk0}, appeared to drastically change the morphology of the crystals, which was not observed with cationic poly(ethylene imine). This behavior of strontium ions was quite similar to that of magnesium ions, which is intriguing because both ions are available from seawater to be utilized during biomineralization.
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kim2019materialsthe1
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| Authors | Hak Yeong Kim;Taewook Yang;Wansoo Huh;Young-Je Kwark;Yunsang Lee;Il Won Kim;Kim, Hak Yeong;Yang, Taewook;Huh, Wansoo;Kwark, Young-Je;Lee, Yunsang;Kim, Il Won; |
| Journal | Materials (Basel, Switzerland) |
| Year | 2019 |
| DOI |
10.3390/ma12203339
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