Abstract
A visible-light activatable caged compound based on a ruthenium-polypyridine complex was used to elicit the feeding response of the freshwater cnidarian Hydra vulgaris. The phototrigger delivers L-arginine in a clean reaction under irradiation with blue or green light. The synthesis, characterization and application mode of this caged arginine are described. A combination of fiber-optics setup and a high absor-bance medium allows the precise control of uncaging in the submillimetric range, needed to address the zone where activation takes place.
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Acknowledgements
This research was supported by the National Agency for Science and Technology Promotion, CONICET, and the University of Buenos Aires. R. E. is a member of CONICET.
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Pérez, Y.R., Etchenique, R. Optical manipulation of animal behavior using a ruthenium-based phototrigger. Photochem Photobiol Sci 18, 208–212 (2019). https://doi.org/10.1039/c8pp00467f
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DOI: https://doi.org/10.1039/c8pp00467f