Observation of an Organic-Inorganic Lattice Match during Biomimetic Growth of (001)-Oriented Calcite Crystals under Floating Sulfate Monolayers

Journal Article · Tue Jan 01 00:00:00 EST 2008 · Langmuir

DOI:https://doi.org/10.1021/la802124v· OSTI ID:980374

Kewalramani, S; Kim, K; Stripe, B; Evmenenko, G; Dommett, G; Dutta, P

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.

• Research Organization: Brookhaven National Lab. (BNL), Upton, NY (United States). National Synchrotron Light Source
• Sponsoring Organization: Doe - Office Of Science
• DOE Contract Number: DE-AC02-98CH10886
• OSTI ID: 980374
• Report Number(s): BNL-93292-2010-JA; LANGD5; TRN: US201015%%1759
• Journal Information: Langmuir, Vol. 24; ISSN 0743-7463
• Country of Publication: United States
• Language: English

Related Subjects

59 BASIC BIOLOGICAL SCIENCES
99 GENERAL AND MISCELLANEOUS//MATHEMATICS, COMPUTING, AND INFORMATION SCIENCE
AMINO ACIDS
CALCITE
CONTROL
CRYSTALS
GRAZING
GROWTH
HEAD
LAYERS
ORIENTATION
POLYSACCHARIDES
SULFATES
UNITS
X-RAY DIFFRACTION
national synchrotron light source