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Updated: Aug 3, 2026
Detecting Anastasis In Vivo by CaspaseTracker Biosensor
Published on: February 1, 2018
Visual detection of cysteine and homocysteine
Oleksandr Rusin1, Nadia N St Luce, Rezik A Agbaria
1Department of Chemistry and Center for Advanced Microstructures and Devices, Louisiana State University, Baton Rouge, Louisiana 70803, USA.
Abstract:
The determination of cysteine and homocysteine levels is of great current interest for the monitoring of desease states. A new colorimetric method for the simultaneous detection of l-cysteine and l-homocysteine has been developed. A fluorescein derivative reacts with the above amino acids, producing their respective thiazolidines resulting in color changes. Interference from other amino acids and proteins is minimal.
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