Table 3.
Summary of aptasensors for the analysis of ochratoxin A.
| Mycotoxins | Method | Principle | Detection range | LOD | Sample | Reference |
|---|---|---|---|---|---|---|
| OTA | Fluorescent aptasensor | Single-walled carbon nanotubes (SWNTs) as quencher | 25–200 nM | 24.1 nM | Beer | Guo et al., 2011 |
| OTA | Fluorescent aptasensor | PVP-protected graphene oxide as quencher | 50–500 nM | 21.8 nM | Red wine | Sheng et al., 2011 |
| OTA | Fluorescent aptasensor | Target-induced conformational change signaling aptamer | 1–100 ng mL−1 | 0.8 ng mL−1 | Corn | Chen et al., 2012 |
| OTA | Fluorescent aptasensor | Fluorescent DNA and silver-nanocluster (AgNCs) | 0.01–0.3 ng mL−1 | 2 pg mL−1 | Wheat | Chen et al., 2014 |
| OTA | Fluorescent aptasensor | Carboxy-modified fluorescent Particles | 0.1–150 nM | 0.005 nM | Beer | Hayat et al., 2015 |
| OTA | Fluorescent aptasensor | Aptamer-conjugated magnetic beads (MBs) and CdTe quantum dots (QDs) | 0.015–100 ng mL−1 | 5.4 pg mL−1 | Peanut | Wang et al., 2015 |
| OTA | Fluorescent aptasensor | Hybridization chain reaction (HCR) | 1.0–20 pM | 0.1 pM | Corn | Wang et al., 2016b |
| OTA | Colorimetric aptasensor | Unmodified gold nanoparticles (AuNPs) indicator | 20–625 nM | 20 nM | – | Yang et al., 2011 |
| OTA | Colorimetric aptasensor | Target-reactive aptamer-cross-linked hydrogel | 0–100 nM | 1.27 nM | Beer | Liu et al., 2015 |
| OTA | Colorimetric aptasensor | Cationic polymer and AuNPs | 0.05–50 ng mL−1 | 0.009 ng mL−1 | liquor | Luan et al., 2015 |
| OTA | Colorimetric aptasensor | Aptamer-controlled growth of Au NPs | – | 1 nM | Red wine | Soh et al., 2015 |
| OTA | Colorimetric aptasensor | Au@Fe3O4 NPs | 0.5–100 ng mL−1 | 30 pg mL−1 | Peanut | Wang C. et al., 2016 |
| OTA | Electrochemiluminescent biosensor | N-(4-aminobutyl)-N-ethylisoluminol and AuNP-modified gold electrode | 0.02–3.0 ng mL−1 | 0.007 ng mL−1 | Wheat | Wang et al., 2010 |
| OTA | Electrochemical aptasensor | Aptamer modified gold electrode | 0.1–1,000 pg mL−1 | 0.095 pg mL−1 | Red wine | Wu J. et al., 2012 |
| OTA | Electrochemical aptasensor | Gold electrode coupled with silver nanoparticles | 0.3–30 nM | 50 Pm | Beer | Evtugyn et al., 2013 |
| OTA | Electrochemical aptasensor | Rolling circle amplification (RCA) | 0.1–5,000 pg mL−1 | 0.065 pg mL−1 | Wine | Huang et al., 2013 |
| OTA | Electrochemical aptasensor | Au NPs and methylene blue | 2.5–2,500 pM | 0.75 pM | Red wine | Yang et al., 2014 |
| OTA | Electrochemical aptasensor | Exonuclease-induced recycling amplification | 0.01–1.0 ng mL−1 | 0.004 ng mL−1 | Corn and Oat | Tan et al., 2015 |
| OTA | Electrochemical aptasensor | Nanocomposites of AuNPs | 0.2–4,000 pg mL−1 | 0.07 pg mL−1 | – | Hao et al., 2016 |
| OTA | Chemiluminescence aptasensor | HRP-mimicking DNAzyme (HRPzyme) | 0.1–100 ng mL−1 | 0.22 ng mL−1 | Coffee beans | Jo et al., 2016 |
| OTA | Electrochemical aptasensor | Exonuclease (Exo) III-assisted recycling amplification | 0.001–0.5 ng mL−1 | 0.58 pg mL−1 | Wheat | Liu et al., 2016 |