Extracellular Biosynthesis of Silver Nanoparticles Using
Escherichia coli ATCC 8739, Bacillus subtilis ATCC 6633, and
Streptococcus thermophilus ESh1 and Their Antimicrobial Activities
Figure 1
Solutions of silver nitrate after exposure to the culture supernatant of (from left to right) E. coli ATCC8739, B. subtilus ATCC6633, and St. thermophilus ESh1.