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(A) UV-Vis spectra of the yellow color silver nanoparticle solution in the absence (a) and presence (b, c) of the [WR]5 peptide and comparison of the stability of silver nanoparticles in the presence of a peptide after 30 min of reaction (curve b) and one month (curve c); (B) TEM image of silver nanoparticles synthesized using sodium borohydride in the presence of [WR]5.
