Figure 4
From: Molecular testing devices for on-site detection of E. coli in water samples
(a) Pictures of the reaction tubes taken under room lights after LAMP assay at 62.5 °C for 45 min. Amount of E. coli DNA are 300 copies for the positive control (P), and the others are marked on the tubes, 30, 3 copies, and 1 copy, as well as a negative control (N). (b) Same tubes of (a) under blue LED flashlight. (c) Gel electrophoresis of those samples in (a).
