Table 5 Analytical performance of the AgNPs sensor with previously reported sensors for the Hg2+, Pb2+, Co2+ and Cu2+
From: Green synthesis of silver nanoparticles and its environmental sensor ability to some heavy metals
Element | LD | LQ | R2 | Conc. range | Colorimetric sensor | Response time | Matrix effect | Refs. |
|---|---|---|---|---|---|---|---|---|
Hg2+ | 1.322 × 10−5 M | 4.4 × 10−5 M | 0.9814 | 10–2–10−7 M | AgNPs without modification | Just added | No interference | Current study |
8 × 10–7 M | – | 0.9956 | 1-70 µM | AgNPs without modification | 5 min | No interferences | [126] | |
28 ppm | 85 ppm | 0.965 | 7–63 ppm | AgNPs without modification | 1 min | No interferences | [129] | |
15 ppb | – | 0.995 | 10–1000 ppb | AgNPs without modification | 5 min | – | [130] | |
0.5 mg/L | 1.69 mg/L | 0.989 | 10–80 mg/L | AgNPs without modification | 30 s | – | [131] | |
1.8 nmol L-1 | – | – | 0.005 to 41 μmol L−1 | Boronic acid functionalized MoS2 quantum dot | – | – | [132] | |
Pb2+ | 1.63 × 10–5 | 5.44 × 10–5 | 0.999 | 10–2–10–7 M | AgNPs without modification | Just added | only in the case of Pb2+/Co2+ mixtures, no interference occurred | Current study |
2.0 × 10−7 M | – | 0.9959 | 1–90 μM | AgNPs Without modification | 5 min | No interferences | [126] | |
0.03 × 10−2 µg/L | – | 0.97 | 0.10–10 µg/L | Modify (silver (Ag)–gold (Au) alloy nanoparticle (NP)–aptamer-modified glassy carbon electrode (GCE)) | – | No interferences except with Cd2+ | [133] | |
0.056 µmol L−1 | – | – | 0.19–1.29 µmol L−1 | Modify (citrate-capped Ag nanoparticles) | – | – | [134] | |
0.1 μM | – | 0.996 | 0.5—25 μM | AgNPs without modification | – | – | [135] | |
0.05 nM | – | – | 0.01-100 µM | GR-5 DNAzyme based Pb ion strip biosensor | – | – | [136] | |
Co2+ | 1.34 × 10–4 | 4.486 × 10–4 | 0.999 | 10–2-10−7 M | AgNPs without modification | Just added | Cause interferences | Current study |
0.1 μM | 0.3 μM | 0.9984 | 0.1–5 μM | Povidone capped silver nanoparticles | 4–5 min | – | [137] | |
7.0 μM | – | 0.99431 | 05–100 μM | Modify triazole–carboxyl agnps | 5 min | – | [138] | |
0.16 | 0.55 mM | – | 1–30 mM | Lignin-functionalized silver nanoparticles | – | – | [139] | |
0.68 µM | – | 0.9957 | 1.7–20 µM | AgGSH silver nanoparticle-glutathione with cysteine modify | – | – | [140] | |
Cu2+ | 1.37 × 10–7 M | 4.5 × 10–7 M | 0.9874 | 10–2–10–7 M | AgNPs without modification | Just added | only in the case of Cu2+/Ni2+ and Cu2+/Cd2+/Ni2+ mixtures no interference occurred | Current study |
1.7 μM | – | 0.9795 | 2.5 µM–1 mM | Carrageenan-silver nanoparticles | 3 min | – | [141] | |
0.16 µM | – | 0.973 | 0.08–1.44 µM | Casein peptide-functionalized silver nanoparticles | – | – | [142] | |
2.5 × 10−8 M | – | 0.998 | 10−7–10−4 M | 4-mercaptobenzoic acid modified silver nanoparticles | – | – | [143] | |
2 nM | – | 0.9965 | 20 to 0.002 μM | AgNPs stabilized with sodium pyrophosphate (Na4P2O7) and hydroxypropylmethylcellulose (HPMC) | 10 min | No interferences | [144] | |
1 μM | – | – | 1–100 μM | Specifically modified Saccharomyces cerevisiae strain immobilized in alginate beads | – | – | [145] |