Total alignment of calcite at acidic polydiacetylene films: Cooperativity at the organic-inorganic interface

Amir Berman, Dong June Ahn, Anna Lio, Miquel Salmeron, Anke Reichert, Deborah Charych

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Abstract

Biological matrices can direct the absolute alignment of inorganic crystals such as calcite. Cooperative effects at an organic-inorganic interface resulted in similar co-alignment of calcite at polymeric Langmuir-Schaefer films of 10,12-pentacosadiynoic acid (p-PDA). The films nucleated calcite at the (012) face, and the crystals were co-aligned with respect to the polymer's conjugated backbone. At the same time, the p-PDA alkyl side chains reorganized to optimize the stereochemical fit to the calcite structure, as visualized by changes in the optical spectrum of the polymer. These results indicate the kinds of interactions that may occur in biological systems where large arrays of crystals are co-aligned.

Original languageEnglish
Pages (from-to)515-518
Number of pages4
JournalScience
Volume269
Issue number5223
Publication statusPublished - 1995 Jul 28
Externally publishedYes

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ASJC Scopus subject areas

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Cite this

Berman, A., Ahn, D. J., Lio, A., Salmeron, M., Reichert, A., & Charych, D. (1995). Total alignment of calcite at acidic polydiacetylene films: Cooperativity at the organic-inorganic interface. Science, 269(5223), 515-518.