Nonreaction-based fluorescent Au3+ probe that gives fast response in aqueous solution

Review—Functional Platforms for (Bio)sensing: Thiophene-Pyrrole Hybrid Polymers

“…A fluorescent sensor with selectivity towards Au 3+ ions based on a SNS-diethyldicarboxyl core unit has also been reported. 71 On this note, tailoring the conducting matrix for the development of biosensing platforms has tremendous potential. An electrochemical biosensor consists of a biorecognition element and a signal transducer.…”

A new turn-off fluorescence probe based on graphene quantum dots for detection of Au(III) ion

“…Despite the interesting chemical and medicinal properties of gold ions, soluble gold salts such as gold chloride are known to cause damage to the liver, kidneys, and the peripheral nervous system [33]. Therefore, the analysis of gold ions has appeared of great importance and various analytical methods such as fluorescence [33][34][35][36][37], spectrophotometry [33,38,39], atomic absorption spectrometry [40], inductively coupled plasma-optical emission spectrometry [41] and electrochemistry [42] have been reported for this purpose.…”

A TBET-based ratiometric probe for Au3+ and its application in living cells

“…[13][14][15][16][17][18] Recently, some fluorescent probes have also been reported for monitoring gold ions with high sensitivity and selectivity. [19][20][21][22] However, most of these probes for gold ions work in a single-fluorescent responsive manner, which is susceptible to environmental effects (such as pH, polarity and temperature). To avoid these limitations, ratiometric fluorescent probes for gold ions are in high demand since they can measure the fluorescence intensities at two wavelengths and thus produce a built-in correction for environmental effects.…”