Effects of chitosan on the alignment, morphology and shape of calcite crystals nucleating under Langmuir monolayers

Kyungil Kim; Ahmet Uysal; Sumit Kewalramani; Benjamin Stripe; Pulak Dutta

doi:10.1039/B811684A

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CrystEngComm

Issue 1, 2009

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Effects of chitosan on the alignment, morphology and shape of calcite crystals nucleating under Langmuir monolayers

Kyungil Kim , Ahmet Uysal , Sumit Kewalramani , Benjamin Stripe and Pulak Dutta

CrystEngComm, 2009, 11, 130-134

DOI: 10.1039/B811684A
Received 09 Jul 2008, Accepted 16 Sep 2008
First published on the web 13 Oct 2008

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The growth of calcium carbonate crystals under Langmuir monolayers was investigated in the presence of chitosan, a soluble derivative of chitin added to the subphase to better simulate the polyelectrolyte-containing in vivo environment. Chitosan causes distinct concentration-dependent changes in the orientation, shape and morphology of the calcite crystals nucleating under acid and sulfate monolayers. Our results suggest that polyelectrolytes may play essential roles in controlling the growth of biogenic calcite crystals.

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Kyungil Kim
Ahmet Uysal
Sumit Kewalramani
Benjamin Stripe
Pulak Dutta

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CrystEngComm

Effects of chitosan on the alignment, morphology and shape of calcite crystals nucleating under Langmuir monolayers

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