Neuroactive amino acids derivatised at their carboxylate groups with a photolabile nitroindolinyl group are highly effective reagents for the sub-µs release of neuroactive amino acids in physiological solutions. However, the same does not apply in the case of calcium ion chelators. In this study, nitroindolinyl-caged BAPTA is found to be completely photostable, whereas nitroindolinyl-caged EDTA photolyses only when saturated with calcium ions.
使用光敏硝基吲哚基衍生的神经活性氨基酸,其羧酸基团高效释放亚微秒级神经活性氨基酸在生理溶液中。然而,对于钙离子螯合剂并非如此。在这项研究中,发现硝基吲哚基囚禁的BAPTA是完全光稳定的,而硝基吲哚基囚禁的EDTA只有在饱和钙离子时才会光解。