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Photoreversibility and photostability in films of octopus rhodopsin isolated from octopus photoreceptor membranes.
- Source :
-
Journal of biomedical materials research. Part A [J Biomed Mater Res A] 2009 Mar 15; Vol. 88 (4), pp. 947-51. - Publication Year :
- 2009
-
Abstract
- In this work, a new biomaterial resulting from the isolation of octopus rhodopsin (OR) starting from octopus photoreceptor membranes is presented. Mass spectroscopic characterization was employed in order to verify the presence of rhodopsin in the extract. Photoreversibility and photochromic properties were investigated using spectrophotometric measurements and pulsed light. Thin films of OR were realized using the gel-matrix entrapment method in polyvinyl alcohol solution. The results indicate that the photoreversibility and the photostability of the OR in gel-matrices are maintained. Several measurements were performed to test the stability of the resulting biomaterial in time and at room temperature. Preliminary tests demonstrate that the photoreversibility and the photostability are still found after few days from the biomaterial preparation and after the exposure for several hours at room temperature.
- Subjects :
- Animals
Biocompatible Materials chemistry
Materials Testing
Microscopy, Atomic Force
Photoreceptor Cells, Invertebrate cytology
Retina chemistry
Retina cytology
Spectrophotometry methods
Cell Membrane chemistry
Octopodiformes
Photochemistry
Photoreceptor Cells, Invertebrate chemistry
Rhodopsin chemistry
Rhodopsin isolation & purification
Subjects
Details
- Language :
- English
- ISSN :
- 1552-4965
- Volume :
- 88
- Issue :
- 4
- Database :
- MEDLINE
- Journal :
- Journal of biomedical materials research. Part A
- Publication Type :
- Academic Journal
- Accession number :
- 18384162
- Full Text :
- https://doi.org/10.1002/jbm.a.31925