Review Article
Single-Stranded DNA Aptamers against Pathogens and Toxins: Identification and Biosensing Applications
Table 5
Summary table of ssDNA MREs targeting chemical toxins.
| Target | SELEX method | | Detection method | LOD | Reference |
| 17β-estradiol (E2) | Sepharose column | 0.13 µM | Electrochemical | 0.1 nM | [156] |
| 17β-estradiol (E2) | Sepharose column | 50 nM | Dynamic light scattering, resistive pulse sensing | 5 nM–100 nM | [157] |
| Bisphenol A | Epoxy-activated resin | 8.3 nM | Fluorescence | Nanomolar range | [158] |
| Polychlorinated biphenyls | FluMag-SELEX | Low micromolar range | Fluorescence | 0.1 to 100 ng/mL | [159] |
| Polychlorinated biphenyls | Magnetic beads | Nanomolar range | — | — | [160] |
| Atrazine | CE-SELEX | 890 nM | Fluorescence polarization | — | [161] |
| Atrazine | Magnetic beads | 0.62 ± 0.21 nM | Magnetic beads capturing coupled with CE | Nanomolar range | [14] |
| Malathion | Magnetic beads | 1.14 ± 0.7 nM | — | — | [15] |
| Bromacil | Magnetic beads | 9.6 ± 7.8 nM | — | — | [16] |
| Tebuconazole Mefenacet Inabenfide | GO-SELEX | 10–100 nM | Colorimetric | 100–400 nM | [25] |
| 4 organophosphorus pesticides phorate, profenofos, isocarbophos, and omethoate | Filtration column/immobilization free | Low micromolar range | — | — | [28] |
| Acetamiprid | Immobilization free | 4.98 µM | — | — | [27] |
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