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(A) UV-visible spectra of bare silver nanoparticles and capped with different amounts of PGA as capping agent, (B) Absorbance maximum displacement depending on the concentration of capping agent; (C) Increase of the absorbance maximum depending on the concentration of capping agent and (D) Stability of bare and PGA capped silver nanoparticles three months after synthesis.
Abbreviations: PGA, poly-α, γ, L-glutamic acid; AgNpPGA, PGA-capped silver nanoparticles.
