A fast-responsive fluorescent probe for detection of gold ions in water and synthetic products

Abstract

We have constructed a fast-responsive fluorescent gold ion probe based on the unexpected gold ion-mediated hydrolysis of acylsemicarbazides to carboxylic acids. The probe has been applied for sensing gold ions in the living cells and detecting residual gold content in gold-catalyzed synthetic samples for the first time.

Sensitive detection of Au(III) using regenerative rhodamine B–functionalized chitosan nanoparticles

“…It is, however, still necessary to develop fluorescent probes for determining gold ions in aqueous solutions. Such probes be more environmentally benign than currently available probes, and offer cost-efficient analyses [14]. The most commonly used fluorescent probes for determining gold ion concentrations are homogeneous systems that are used in the dissolved state, and the probes cannot be separated from the solution and recycled after use [10][11][12][13][14][15][16].…”

Fluorescent imaging of Au3+ in living cells with two new high selective Au3+ probes

“…Gold ion shows an excellent appropriation and biocompatibility for its application in medication. Gold-based drugs are valuable for the treatment of a wide variety of diseases including rheumatic arthritis, asthma, tuberculosis, malaria, cancer, HIV, and brain lesions (Adhikari et al, 2015;Patil et al, 2012;Yuan et al, 2011;Jeong, et al, 2012).…”

A “turn-on” fluorescent and colorimetric sensor for selective detection of Cu2+ in aqueous media and living cells

“…The reaction of metal-promoted hydrolysis has been used as a popular strategy of fluorescent detection for metal ions in recent years [37][38][39][40]. Cu 2+ -promoted hydrolysis of picolinate was also demonstrated [28,41].…”