Peptide-intercalated layered metal hydroxides effect of peptide chain length and side chain functionality on structural, optical and magnetic properties
- New hybrid materials have been prepared by grafting synthetic peptides in the interlayer spacing of Cu(II) and Co(II) layered simple hydroxides (LSHs). The interlayer spacing of the hybrids depends on the peptide chain length; the dependence is specific for the copper and cobalt-based hybrids. This suggests a metal-or LSH-specific interaction of the peptides with the respective inorganic layers. When tyrosine is present in the peptide, its fluorescence is quenched after grafting the peptide to the LSH. Studies of the luminescence vs. pH indicate deprotonation of the tyrosine moieties to tyrosinate at high pH, accompanied by the onset of luminescence. The luminescence increases with increasing OH- concentration, suggesting an application of the hybrids as chemical sensors. Moreover, the peptides influence the magnetic properties of the hybrids. The copper-based hybrids behave antiferromagnetically and the cobalt-based hybrids are ferrimagnets.
Author details: | Satyabrata Si, Andreas TaubertORCiDGND, Alexandre Mantion, Guillaume Rogez, Pierre Rabu |
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DOI: | https://doi.org/10.1039/c2sc01087a |
ISSN: | 2041-6520 |
Title of parent work (English): | Chemical science |
Publisher: | Royal Society of Chemistry |
Place of publishing: | Cambridge |
Publication type: | Article |
Language: | English |
Year of first publication: | 2012 |
Publication year: | 2012 |
Release date: | 2017/03/26 |
Volume: | 3 |
Issue: | 6 |
Number of pages: | 13 |
First page: | 1945 |
Last Page: | 1957 |
Funding institution: | CNRS; University of Strasbourg; University of Postdam; MPI of Colloids and Interfaces (Colloid Chemistry Department), Deutsche Forschungsgemeinschaft [TA571/2-1, 7-1]; BAM, Federal Institute for Materials Research and Testing, Berlin, Germany; French Agence Nationale de la Recherche (ANR) [ANR-06-JCJC-0008, ANR-06-BLAN-0117-02]; Division 1 |
Organizational units: | Mathematisch-Naturwissenschaftliche Fakultät / Institut für Chemie |
Peer review: | Referiert |