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

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

ISSN: 1477-3155