Total Alignment of Calcite at Acidic Polydiacetylene Films: Cooperativity at the Organic-Inorganic Interface

Autor:	Dong June Ahn, Anke Reichert, Deborah H. Charych, Anna Lio, Amir Berman, Miquel Salmeron
Rok vydání:	1995
Předmět:	chemistry.chemical_classification Calcite Multidisciplinary Stereochemistry Nucleation Cooperativity Polymer Conjugated system Polyelectrolyte chemistry.chemical_compound chemistry Chemical engineering Side chain Alkyl
Zdroj:	Science. 269:515-518
ISSN:	1095-9203 0036-8075
DOI:	10.1126/science.269.5223.515
Popis:	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.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5ed2ee4fa7f0302e3ab09b4d1e332b93 https://doi.org/10.1126/science.269.5223.515 Zobrazit plný text záznamu Plný text ve formátu PDF