TABLE 1.

Selected examples of aptasensors for detection of AFB1.

Detection methods	Aptamer sequence (5′–3′)	LOD	Linear range	References
Fluorescence	GTT GGG CAC GTG TTG TCT CTC TGT GTC TCG TGC CCT TCG CTA GGCCC	20 pg/mL	0.05–100 ng/mL	Lu et al., 2019
	GT TGG GCA CGT GTT GTC TCT CTG TGT CTC GTG CCC TTC GCT AGG CCC ACA	0.3 pg/mL	5–1000 pg/mL	Nasirian et al., 2017
	AAA AAA AAG TTG GGC ACG TGT TGT CTC TCT GTG TCT CGT GCC CTT CGC TAG GCC CAC AC	70 pg/mL	0.1–0.8 ng/mL	Li Z. et al., 2019
	ATA TCT TTT CCT ACT CAT CTT TGA ATA ACT ACC GGG CAT TAC TTT CTG GCC TCC CTG CCT CCT AAA TCA CCA ATT AAT TCG CGG CCC CCC G	4 ng/mL	0.002–0.2 μg/mL	Kumar et al., 2018
Colorimetry	GTT GGG CAC GTG TTG TCT CTC TGT GTC TCG TGC CCT TCG CTA GGC CC	1 pM	–	Wu et al., 2019a
SERS	GTTGG GCA CGT GTT GTC TCT CTG TGT CTC GTG CCC TTC GCT AGG CCC	3.6 pg/mL	0.01–100 ng/mL	Chen et al., 2018
	GTTGG GCA CGT GTT GTC TCT CTG TGT CTC GTG CCC TTC GCT AGG CCC	0.54 pg/mL	0.001–10 ng/mL	Yang et al., 2017
SPR	TGG GCA CGT GTT GTC TCT CTG TGT CTC GTG CCC T	0.4 nM	0.4–200 nM	Sun et al., 2017
	GTT GGG CAC GTG TTG TCT CTC TGT GTC TCG TGC CCT TCG CTA GGC CCA CA	0.19 ng/mL	1.5–50 ng/mL	Wu et al., 2018
Electrochemistry	GTT GGG CAC GTG TTG TCT CTC TGT GTC TCG TGC CCT TCG CTA GGC CCA CA	0.01 fg/mL	0.1 fg/mL-0.1 μg/mL	Peng et al., 2018
	GTT GGG CAC GTG TTG TCT CTC TGT GTC TCG TGC CCT TCG CTA GGC CCA CA	86 fg/mL	0.1–10 ng/mL	Selvolini et al., 2019
	GTT GGG CAC GTG TTG TCT CTC TGT GTC TCG TGC CCT TCG CTA GGC CCA CA	0.13 ng/mL	1-20 ng/mL	Mo et al., 2018