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Table 3 A summary of developments of electrochemical aptasensor for heavy material ions

From: Advances in aptamer screening and aptasensors’ detection of heavy metal ions

Target nanomaterial LOD (nM) LinearRange (nM) Aptamer Refs
Hg2+ AuNPs/CS 5 × 10–3 0.01–500 TCATG TTTGT TTGTT GGCCC CCCTT CTTTC TTA [127]
Hg2+ AuNPs 1 × 10–4 2 × 10–3−20 TTCTC TCTTC GACGT TGTGT GTT [128]
Hg2+ NFs-QDs 0.02 0.1–150 TTTTT TTTTT ACAGC AGATC AGTCT ATCTT CTCCT GATGG GTTCCT ATTTA TAGGT GAAGC TGT [153]
Hg2+ AgNPs 25 25–500 TTTCT TCTTT CTTCC CCCCT TGTTT GTTT [130]
Pb2+ ERGO 5.1 × 10–7 10–6−1 GGTGG TGGTG GTTGT GGTGG TGGTG G [132]
Pb2+ Au@Py 2.9 2.4–120.7 GGGTG GGTGG GTGGG T [133]
Pb2+ AuNPs 8.5 × 10–3 0.01–1000 GGGTG GGTGG GTGGG TGGGT [134]
Pb2+ PtNPs@PCs 0.018 0.05–1000 GGGTG GGTGG GTGGG TAT [135]
Cd2+ rGO/g-C3N4 0.337 1–1000 C12-GGGGC AGTGC CTCAC AACCT [136]
As3+ CNPs 1.18 6.4–1283 GGTAA TACGA CTCAC TATAG GGAGA TACCA GCTTA TTCAA TTTTA CAGAA CAACC AACGT CGCTC CGGGT ACTTC TTCAT CGAGA TAGTA AGTGC AATCT [137]
As3+ Ag-Au alloy NPs 3.8 × 10–5 0.128–128 GGTAA TACGA CTCAC TAAGG GAGAT ACCAG CTTAT TCAAT TTTAC AGAAC ACCAA CGTCG CTCGG GTACT TCTTC ATCGA GATAG TAAGT GCAAT CT [138]
As3+ / 0.26 1.28–2565.7 TGATGTTTGTTTACGCATGTGTGAGGAGAGGCTGGGGTGATGAATCCCAATCCC [139]
Pb2+; As3+ Fe-MOF@mFe3O4@mC 2.27 × 10–3
6.73 × 10–3
0.01–10;
0.01–10
CAACG GTGGG TGTGG TTGG;
GGTAA TACGA CTCAC TATAG GGAGA TACCA GCTTA TTCAA TTTTA CAGAA CAACC AACGT CGCTC CGGGT ACTTC TTCAT CGAGA TAGTA AGTGC AATCT
[141]
Pb2+; Hg2+ / 0.48;
0.50
0.48–4826;
0.50–4985
CAACG GTTGG TGTGG TTGG;
TTCTT TCTTC CCCTT CTTTC TT
[143]