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Caged amino acids for visible-light photodelivery
被引:34
|作者:
Salierno, Marcelo
[1
]
Fameli, Cecilia
[1
]
Etchenique, Roberto
[1
]
机构:
[1] Univ Buenos Aires, Fac Ciencias Exactas & Nat, Dept Quim Inorgan Analit & Quim Fis, INQUIMAE, Buenos Aires, DF, Argentina
关键词:
caged compounds;
phototriggers;
neurophysiology;
D O I:
10.1002/ejic.200700963
中图分类号:
O61 [无机化学];
学科分类号:
070301 ;
081704 ;
摘要:
We present a photocleavable protecting group based on ruthenium bipyridyl complexes and suitable for amino acid photodelivery. We discuss the photochemical properties of the caged glutamate, which is a major neurotransmitter in the CNS. The molar absorptivity for the caged glutamate at 450 nm is epsilon = 4200 M(-1)cm(-1) and its quantum yield of photorelease at 450 mn is Phi(PD) = 0.035, which is about 17 times higher than that of the most active organic caged compound at this wavelength. Similar figures are obtained for other alpha-amino acids. ((c) Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2008).
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页码:1125 / 1128
页数:4
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