Figure 6
From: A direct detection of Escherichia coli genomic DNA using gold nanoprobes
AFM image of AuNP- oligo probe assay. a) Monodispersed gold nanoparticles in the presence of Escherichia coli genomic DNA in the test sample. b) Three dimensional aggregates of gold nanoparticles in the presence of Pseudomonas aeruginosa genomic DNA in the test sample.