Determination of cysteine concentration by fluorescence increase: reaction of cysteine with a fluorogenic aldehyde

Abstract

A fluorogenic method for the determination of cysteine concentration has been developed.

The Electrochemical Behavior of Au/AuNPs/PNA/ZnSe-QD/ACA Electrode Towards CySH Oxidation

“…Most of them are based on the chromatographic separation [15,16], electrophoretic methods [17,18] and UV/vis absorption spectrometry [14,19,20]. Separation methods present basic limitations in terms of equipment cost, complexity, sample processing and run times.…”

DNA template-synthesized silver nanoparticles: A new platform for high-performance fluorescent biosensing of biothiols

“…Besides synthetic organic probes [23][24][25][26], metal nanoparticles, such GNPs and gold nanorods, were involved in sensing thiols, due to their easy synthesis and biocompatibility [27][28][29]. The presence of thiols reacted and immobilized on the surface of nanoparticles and induced them to aggregate, turning out a colour change.…”

A New Pyrene‐Spacer‐Maleimide Dyad for Sensing Molecules with One or Two Thiol Groups†

“…4 Both chemical reactions and electrochemical methods have been developed for detection of thiols. [5][6][7][8] The chemical reactions usually provide high selectivity to thiols, and the output signals can be observed easily, such as fluorescence [9][10][11][12] and visible color changes. [13][14][15] But, only a few literatures have reported the selective determination of dithiol molecules, 16 although the detection of dithiols is important for biological science.…”