Fig. 3From: Application of loop-mediated isothermal amplification combined with colorimetric and lateral flow dipstick visualization as the potential point-of-care testing for Corynebacterium diphtheriaeResults of the LAMP detection limit for tox gene. From the left to the right, 10-fold serial dilutions of the DNA samples. A—60 min of incubation, detection using QuantiFluor; B—50 min of incubation, detection using calcein (B1—white background, B2—black background); C—40 min of incubation, detection using HNBBack to article page