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Volumn 24, Issue 19, 2008, Pages 10579-10582

Observation of an organic-inorganic lattice match during biomimetic growth of (001)-oriented calcite crystals under floating sulfate monolayers

Author keywords

[No Author keywords available]

Indexed keywords

BIOMIMETIC GROWTHS; BIOMINERALS; CALCITE CRYSTALS; CALCITE GROWTHS; GRAZING INCIDENCES; HEAD GROUPS; IN-SITU; LATTICE MATCHED; LIVING ORGANISMS; MACROMOLECULAR LAYERS; ORGANIC; SULFATED POLYSACCHARIDES; UNIT CELLS; X-RAY DIFFRACTIONS;

EID: 54549118090     PISSN: 07437463     EISSN: None     Source Type: Journal    
DOI: 10.1021/la802124v     Document Type: Article
Times cited : (24)

References (41)
  • 2
    • 33645071045 scopus 로고    scopus 로고
    • Towe, K. M. Science 2006, 311, 1554.
    • (2006) Science , vol.311 , pp. 1554
    • Towe, K.M.1
  • 29
    • 54549118594 scopus 로고    scopus 로고
    • Supersaturated bicarbonate solutions were prepared by bubbling carbon dioxide for ∼5 h through a stirred aqueous suspension of calcium carbonate (0.8 g/L, The solution was then filtered through 0.2 μm porous membranes to remove the undissolved calcium carbonate particles. Carbon dioxide was rebubbled through the filtered solution for an additional hour prior to use. Calcite nucleation at the monolayer surface is based on the following chemical equilibrium: 2HCO3, aq, Ca2+(aq) →CaCO3(s, CO2(↑, H2O(I) Titration analysis for calcium ions allows for an estimation of maximum attainable supersaturation, namely, that generated under conditions of spontaneous outgassing of all CO2. Mann et. al27 have estimated this value to be ∼103 at the experimental pH of 5.8. The outgassing of carbon dioxide causes the crystallization to be localized at the air-water interface. Thi
    • 29 In our experiment, the first diffraction signal from calcite crystals were obtained at nucleation times of ∼30 min after spreading the monolayer. Thus, observable crystallization occurs at an estimated pH of ∼5.9.
  • 34
    • 54549091528 scopus 로고    scopus 로고
    • 2). This means that the thicker structure occupies no more than 2 to 3% of the surface.
    • 2). This means that the thicker structure occupies no more than 2 to 3% of the surface.
  • 35
    • 54549119727 scopus 로고    scopus 로고
    • The monolayer interacts strongly with calcium ions, as evidenced by the enhancement of the monolayer diffraction signal by at least a factor of 3 (Fig. 2). Also, there is no obvious relationship between the calcite surface structure and the trilayer structure.
    • The monolayer interacts strongly with calcium ions, as evidenced by the enhancement of the monolayer diffraction signal by at least a factor of 3 (Fig. 2). Also, there is no obvious relationship between the calcite surface structure and the trilayer structure.
  • 39
    • 0000949044 scopus 로고
    • Macro-ion Characterization: Front Dilute Solutions to Complex Fluids
    • Schmilz, K. S, Ed, American Chemical Society: New York
    • Reed, W. F. In Macro-ion Characterization: Front Dilute Solutions to Complex Fluids; Symposium Series 548; Schmilz, K. S., Ed.; American Chemical Society: New York, 1984.
    • (1984) Symposium Series , vol.548
    • Reed, W.F.1


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.