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Calcium carbonate precipitation and crystal morphology induced by microbial carbonic anhydrase and other biological factors

Paper ID Volume ID Publish Year Pages File Format Full-Text
35626 45098 2010 5 PDF Available
Title
Calcium carbonate precipitation and crystal morphology induced by microbial carbonic anhydrase and other biological factors
Abstract

The effect of microbial carbonic anhydrase (CA) on the calcium carbonate (CaCO3) precipitation was systematically investigated comparing to other biological factors (bovine CA, bovine serum albumin, carboxymethyl chitosan and glutamic acid). The results showed that the precipitation rate of Ca2+ in the presence of either microbial CA or bovine CA was faster than that in the presence of 1% bovine serum albumin, 1% carboxymethyl chitosan or 1% glutamic acid, respectively. In addition, XRD analysis indicated that the dominant CaCO3 crystal phase was calcite. The CaCO3 crystal morphologies mainly showed cubic and polyhedral shapes induced by microbial CA, and became multiformity induced by other factors from FE-SEM analysis. These results suggested a novel approach for biomimetic synthesis of CaCO3 materials by microbial CA.

Keywords
CaCO3 precipitation; Microbial carbonic anhydrase (CA); Bovine serum albumin; Carboxymethyl chitosan; Glutamic acid; Crystal morphology
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Calcium carbonate precipitation and crystal morphology induced by microbial carbonic anhydrase and other biological factors
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Publisher
Database: Elsevier - ScienceDirect
Journal: Process Biochemistry - Volume 45, Issue 6, June 2010, Pages 1017–1021
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Bioengineering
Get Full-Text Now
Don't Miss Today's Special Offer
Price was $35.95
You save - $31
Price after discount Only $4.95
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Full-text PDF Download
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Any Questions? feel free to contact us