4.6 Article

A caged nicotine with nanosecond range kinetics and visible light sensitivity

期刊

JOURNAL OF INORGANIC BIOCHEMISTRY
卷 104, 期 12, 页码 1248-1251

出版社

ELSEVIER SCIENCE INC
DOI: 10.1016/j.jinorgbio.2010.08.003

关键词

Caged compound; Ruthenium complex; Nicotine; Leech; Neurotransmitter; nAChR

资金

  1. UBACyT
  2. CONICET
  3. ANPCyT

向作者/读者索取更多资源

We report the synthesis, characterization and applications of a ruthenium-bipyridine based caged nicotine. The complex [Ru(bpy)(2)(nic)(2)](2+) (where bpy = 2,2' bipyridine and nic = nicotine (3-[(2S)-1-methylpyrrolidin-2-yl] pyridine)) releases nicotine with a quantum yield phi = 0.23 upon irradiation with biologically harmless, blue (473 nm) or green (532 nm) light. The photolysis reaction is clean and very fast, with a time constant of 17 ns. The synthesis is simple and the obtained compound is characterized by NMR, UV-Vis spectroscopy and cyclic voltametry. We find that this compound is active in biological systems, being able to elicit action potentials in leech neurons. (C) 2010 Elsevier Inc. All rights reserved.

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