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. 2019 Feb 11;9:1739. doi: 10.1038/s41598-018-38056-7

Figure 4.

Figure 4

Biotinylated LAMP products measured using streptavidin conjugated particles. (A) Schematic of fluorescent streptavidin-coated polystyrene particles combined with DNA tagged with a biotinylated LAMP primer. (B) Representative image of fluorescent particles in a negative LAMP sample (top, no V. cholerae DNA). (C) Images in (B) are processed to quantify particle area (in pix2) for negative and positive LAMP reactions. (D) Measurement of diffusivity after amplification of various initial concentrations of V. cholerae DNA is statistically significant for 103 (*p-value < 0.05), 104, and 105 (****p-value < 0.0001) DNA copies/reaction compared to NTC. Statistical analysis was a one-way ANOVA with Dunnett’s post-hoc relative to NTC (n = 4).