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. 2020 Dec 14;12(12):2983. doi: 10.3390/polym12122983

Table 3.

Dissociation constant (KD) values and corresponding free energy (ΔG0) values calculated by using Fluorescent Microscale Thermophoresis (MST) and magnetic beads (MBs) assays of selected aptamer towards target mycotoxins. The standard error values of the calculated KD values were derived from two independent experiments.

Target Mycotoxin Aptamer Name MST Assay MBs Assay
KD
(nmol/L)
ΔG0 Energy a
(kcal/mol)
KD
(nmol/L)
ΔG0 Energy
(kcal/mol)
Fumonisin B1
(FB1)
FB1_39 31 ± 22 −10.24 ± 0.42 1.53 ± 0.67 −12.03 ± 0.26
FB1_39t3 2200 ± 1100 −7.72 ± 0.30 NB b - c
FB1_10 162 ± 137 −9.26 ± 0.50 NB -
Aflatoxin B1
(AFB1)
AF_AB3 178 ± 50 −9.21 ± 0.17 NB -
AF_APT1 NB - 1.40 ± 0.51 −12.08 ± 0.22
Ochratoxin A (OTA) 1.12.2 525 ± 147 d −8.57 ± 0.17 374 ± 255 e −8.77 ± 0.40
A08 233 ± 81 d −9.05 ± 0.21 286 ± 149 e −8.93 ± 0.31
A08min 97 ± 33 d −9.57 ± 0.20 406 ± 166 e −8.72 ± 0.24
H8 416 ± 119 d −8.70 ± 0.17 14 ± 7 e −10.71 ± 0.30
H12 630 ± 80 d −8.46 ± 0.08 40 ± 14 e −10.09 ± 0.21

a Free energy values calculated according to the formula: G0=RTln(KD); b NB = no binding detected; c not applicable; d McKeague et al. [39]; e McKeague et al. [31].