Detection of Amines and Unprotected Amino Acids in Aqueous Conditions by Formation of Highly Fluorescent Iminium Ions
作者:Ellen K. Feuster、Timothy E. Glass
DOI:10.1021/ja036434m
日期:2003.12.1
coumarin aldehydes can be used to detect amines and amino acids under neutral, high ionic strength conditions by the formation of highly fluorescent iminium ions. The fluorescence of one sensor increases by 26-fold upon the addition of glycine. This strong florescent response is attributed to hydrogen bonding of the chromophore carbonyl by the acidic iminium proton.
Detection of chemical warfare simulants by phosphorylation of a coumarin oximate
作者:Karl J. Wallace、Ruth I. Fagbemi、Frantz J. Folmer-Andersen、Jeroni Morey、Vincent M. Lynth、Eric V. Anslyn
DOI:10.1039/b609861d
日期:——
The detection of chemical warfare simulants is attained by the PET mechanism that gives an “off–on” fluorescent response with a half-life of approximately 50 ms upon phosphorylation of a reactive oximate functionality; the X-ray crystal structure of the oximate was also obtained and is discussed.
通过 PET 机制实现了对化学战模拟物的检测,该机制在活性氧化物官能团发生磷酸化反应时产生半衰期约为 50 毫秒的 "熄灭-开启 "荧光反应;此外还获得并讨论了氧化物的 X 射线晶体结构。