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Title: Complementary Control by Additivies of the Kinetics of Amorphous CaCO3 Mineralization at an Organic Interface: In-Situ Synchrotron X-ray Observations

Abstract

The kinetics of biomimetic mineralization at a fatty acid monolayer interface have been measured in situ by synchrotron x-ray reflectivity. The formation of biologically relevant amorphous calcium carbonate films is affected by soluble macromolecules, supersaturation rate of change, and Mg cations. We find that these solution conditions influence mineral film formation in a complementary fashion. Poly(sodium acrylate) extends the lifetime of metastable amorphous calcium carbonate, solution saturation controls the mineral film growth rate, and Mg cations create a longer induction time. This is the first quantification of potentially competitive biomineralization mechanisms that addresses nucleation and growth of the amorphous mineral phases, which are important in biomineralization.

Authors:
; ; ; ; ;
Publication Date:
Research Org.:
Brookhaven National Laboratory (BNL) National Synchrotron Light Source
Sponsoring Org.:
Doe - Office Of Science
OSTI Identifier:
914410
Report Number(s):
BNL-78978-2007-JA
Journal ID: ISSN 0031-9007; PRLTAO; TRN: US0802864
DOE Contract Number:
DE-AC02-98CH10886
Resource Type:
Journal Article
Resource Relation:
Journal Name: Phys. Rev. Lett.; Journal Volume: 97
Country of Publication:
United States
Language:
English
Subject:
43 PARTICLE ACCELERATORS; ADDITIVES; CALCIUM CARBONATES; CARBOXYLIC ACIDS; CATIONS; INDUCTION; KINETICS; LIFETIME; MINERALIZATION; NUCLEATION; REFLECTIVITY; SATURATION; SUPERSATURATION; SYNCHROTRONS; national synchrotron light source

Citation Formats

DiMasi,E., Kwak, S., Amos, F., Olszta, M., Lush, D., and Gower, L.. Complementary Control by Additivies of the Kinetics of Amorphous CaCO3 Mineralization at an Organic Interface: In-Situ Synchrotron X-ray Observations. United States: N. p., 2006. Web. doi:10.1103/PhysRevLett.97.045503.
DiMasi,E., Kwak, S., Amos, F., Olszta, M., Lush, D., & Gower, L.. Complementary Control by Additivies of the Kinetics of Amorphous CaCO3 Mineralization at an Organic Interface: In-Situ Synchrotron X-ray Observations. United States. doi:10.1103/PhysRevLett.97.045503.
DiMasi,E., Kwak, S., Amos, F., Olszta, M., Lush, D., and Gower, L.. Sun . "Complementary Control by Additivies of the Kinetics of Amorphous CaCO3 Mineralization at an Organic Interface: In-Situ Synchrotron X-ray Observations". United States. doi:10.1103/PhysRevLett.97.045503.
@article{osti_914410,
title = {Complementary Control by Additivies of the Kinetics of Amorphous CaCO3 Mineralization at an Organic Interface: In-Situ Synchrotron X-ray Observations},
author = {DiMasi,E. and Kwak, S. and Amos, F. and Olszta, M. and Lush, D. and Gower, L.},
abstractNote = {The kinetics of biomimetic mineralization at a fatty acid monolayer interface have been measured in situ by synchrotron x-ray reflectivity. The formation of biologically relevant amorphous calcium carbonate films is affected by soluble macromolecules, supersaturation rate of change, and Mg cations. We find that these solution conditions influence mineral film formation in a complementary fashion. Poly(sodium acrylate) extends the lifetime of metastable amorphous calcium carbonate, solution saturation controls the mineral film growth rate, and Mg cations create a longer induction time. This is the first quantification of potentially competitive biomineralization mechanisms that addresses nucleation and growth of the amorphous mineral phases, which are important in biomineralization.},
doi = {10.1103/PhysRevLett.97.045503},
journal = {Phys. Rev. Lett.},
number = ,
volume = 97,
place = {United States},
year = {Sun Jan 01 00:00:00 EST 2006},
month = {Sun Jan 01 00:00:00 EST 2006}
}