Document Detail


Observation of an organic-inorganic lattice match during biomimetic growth of (001)-oriented calcite crystals under floating sulfate monolayers.
MedLine Citation:
PMID:  18774837     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Macromolecular layers rich in amino acids and with some sulfated polysaccharides appear to control oriented calcite growth in living organisms. Calcite crystals nucleating under floating acid monolayers have been found to be unoriented on average. We have now observed directly, using in situ grazing incidence X-ray diffraction, that there is a 1:1 match between the monolayer unit cell and the unit cell of the (001) plane of calcite. Thus, sulfate head groups appear to act as templates for the growth of (001)-oriented calcite crystals, which is the orientation commonly found in biominerals.
Authors:
Sumit Kewalramani; Kyungil Kim; Benjamin Stripe; Guennadi Evmenenko; Geoffrey H B Dommett; Pulak Dutta
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Publication Detail:
Type:  Journal Article; Research Support, U.S. Gov't, Non-P.H.S.     Date:  2008-09-06
Journal Detail:
Title:  Langmuir : the ACS journal of surfaces and colloids     Volume:  24     ISSN:  0743-7463     ISO Abbreviation:  Langmuir     Publication Date:  2008 Oct 
Date Detail:
Created Date:  2008-10-01     Completed Date:  2008-10-28     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9882736     Medline TA:  Langmuir     Country:  United States    
Other Details:
Languages:  eng     Pagination:  10579-82     Citation Subset:  IM    
Affiliation:
Department of Physics and Astronomy, Northwestern University, Evanston, Illinois 60208, USA.
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MeSH Terms
Descriptor/Qualifier:
Biomimetic Materials / chemistry*
Calcium Carbonate / chemistry*
Crystallization
Organic Chemicals / chemistry*
Sulfates / chemistry*
Chemical
Reg. No./Substance:
0/Organic Chemicals; 0/Sulfates; 471-34-1/Calcium Carbonate

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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