Aggregation-induced emission from gold nanoclusters for use as a luminescence-enhanced nanosensor to detect trace amounts of silver ions

Highly Sensitive Detection of Silver Ions Enabled by RecJf Exonuclease Cleavage and Reductant‐Mediated Electrochemical Amplification

“…Nevertheless, these techniques always require sophisticated instruments, well‐trained operators, and excessive testing costs, which have stimulated intensive research into the development of novel sensors for Ag + analysis . A series of colorimetric sensing strategies have been proposed for simple, rapid, and low‐cost sensing; electrochemical techniques with the advantages of high sensitivity and selectivity have been applied for Ag + measurements; and fluorescent detection methods with enhanced signals based on Ln 3+ ‐doped metal–organic frameworks (MOFs) or aggregation‐induced emission nanoclusters have also been fabricated …”

“…[7] As eries of colorimetrics ensing strategies have been proposed for simple, rapid, andl ow-cost sensing; [8][9][10] electrochemical techniques with the advantages of high sensitivity and selectivity have been appliedf or Ag + measurements; [11][12][13] and fluorescent detection methods with enhanced signals based on Ln 3 + -doped metal-organic frameworks (MOFs) or aggregation-induced emissionnanoclusters have also been fabricated. [14,15] Herein, we presentan ovel electrochemical approachf or Ag + detection based on RecJ f exonuclease cleavage and reductant-mediated electrochemical amplification. Ag + recognition relieso nt he cytosine-cytosine mismatch designso f aD NA probe, [16] which is immobilizedo naglassy carbon electrode (GCE)m odified with gold nanoparticles (AuNPs).…”

Selective determination of Ag+ in the presence of Cd2+, Hg2+ and Cu2+ based on their different interactions with gold nanoclusters

“…Ag is widely used in jewelry, coins, medical, imaging, electrical and electronic equipment due to its excellent physical and chemical properties. 29,30 However, due to improper treatment of silver-containing products, Ag + pollution has become a major environmental problem. 30 In addition, Ag + has adverse effects on immune system, nervous system and digestive system.…”

“…29,30 However, due to improper treatment of silver-containing products, Ag + pollution has become a major environmental problem. 30 In addition, Ag + has adverse effects on immune system, nervous system and digestive system. 31 In animal experiments, silver seemed to be distributed in all organs of the organisms studied, and the highest levels were observed in the intestine and stomach.…”

Aggregation-Enhanced Emission of Gold Nanoclusters Induced by Serum Albumin and Its Application to Protein Detection and Fabrication of Molecular Logic Gates

“…For example, Pei et al reported the AEE of Au NCs induced by Pb 2+ ions, 16 while Zhou et al reported a similar phenomenon induced by Ag + ions. 17 Yahia-Ammar et al. demonstrated the AEE effect of Au NCs resulting from electrostatic interactions with cationic polymers, such as poly(allylamine hydrochloride) and polyethylenimine.…”