Table 1.

Aptamer sequences against the specific target of interest and their secondary structure (predicted through the MFold online portal; the portal for the mfold web server is http://www.unafold.org/mfold/applications/dna-folding-form.php; Zuker, 2003).

Specific target	Aptamer sequence	Kd value	Possible secondary structure	References
λ-cyhalothrin	5′-ACCGACCGTGCTGGACTCTAGGGGAAGCACGGGCGGGGAATGCAACACGAGTATGAGCGAGCGTTGCG-3′	50.64 ± 4.33 nmol/L		Yang et al. (2021)
Deoxynivalenol	5′–(SH)–(CH2)6-GCATCACTACAGTCATTACGCATCGTAGGGGGGATCGTTAAGGAAGTGCCCGGAGGCGGTATCGTGTGAAGTGCTGTCCC-3′	-		Subak et al. (2021)
Diazinon	5′–NH2–(CH2)6-ATCCGTCACACCTGCTCTAATATAGAGGTATTGCTCTTGGACAAGGTACAGGGATGGTGTTGGCTCCCGTAT-3′	-		Talari et al. (2021)
Aflatoxin B1	5′-TGGGGTTTTGGTGGCGGGTGGTGTACG GGCGAGGG-3′	-		Lin and Shen (2020)
Zearalenone	5′–NH2–TCATCTATCTATGGTACATTACTATCTGTAATGTGATATG-3′	-
Ochratoxin A	5′-GCTGAGTCTGAGTCG ATCGGGTGTGGGTGGCGTAA AGGGAGCATCGGACA-3′	-		Jin et al. (2018)
Mercury	5′-GCTGAGTCTGAGTCGTCATGTTTGTTTGTTGGCCCCCCTTCTTTCTTA-3′	-
Acetamiprid	5′–(SH)–(CH2)6-TGTAATTTGTCTGCAGCGGTTCTTGATCGCTGACACCATATTATGAAGA-[Flc]-3′	-		Madianos et al. (2018)
Atrazine	5′–(SH)–(CH2)6-TACTGTTTGCACTGGCGGATTTAGCCAGTCAGTG[Flc]-3′	-
Chlorpyrifos	5′-CCTGCCACGCTCCGCAAGCTTAGGGTTACGCCTGCAGCGATTCTTGATCGCGCTGCTGGTAATCCTTCTTTAAGCTTGGCACCCGCATCGT-3′	-		Jiao et al. (2017)
Abscisic acid	5′- GCGGATGAAGACTGGTGTGAGGGGATGGGTTAGGTGGAGGTGGTTATTCCGGGAATTCGCCCTAAATACGAGCAAC-3′	-		Wang et al. (2017)