Figure 3: (a) Culture of E. coli suspension in LB growth media, (b) Agar growth plate showing E. coli cfu after incubation, which were plated from its 10-3 to 10-6 (top left to right) and 10-7-10-9 (bottom left to right) dilutions. Agar plating of capture and isolated E. coli from PBS suspension using NPs 4, where (c) is E. coli at 10-8 dilution, NPs (d) 2, (e) 3, (f) 4 incubated with E. coli at 10-8 dilution in PBS suspension.