Phytosynthesis of silver nanoparticles using Mangifera indica leaves extract at room temperature: Formation mechanism, catalytic reduction, colorimetric sensing, and antimicrobial activity

Biogenic Salvia species synthesized silver nanoparticles with catalytic, sensing, antimicrobial, and antioxidant properties

“…10 a–j). The decrease and shifting of SPR band of AgNPs towards bathochromic/red shift indicates agglomeration and destabilization [ 43 , 44 ]. However, upon the addition of Ni 2+ and Zn 2+ ion solutions to AgNPs, there was no significant change in SPR band except a slight decrease in the intensity ( Fig.…”

Green synthesis of silver@graphene oxide nanocomposite for antibacterial, cytotoxicity assessment, and hydrogen peroxide electro-sensing

“…26 It is also conspicuous that the shape of the SPR bands remains nearly unchanged after 40 min of the reaction, manifesting the uniform size distribution of the nanoparticles during the investigated reaction periods. 27 Conclusively, the most suitable reaction time was set at 35 min.…”

Anti-aggregation colorimetric sensing of cysteine using silver nanoparticles in the presence of Pb2+

“…37–41 However, in the case of Hg( ii ) and Cr( iv ), they can oxidize Ag 0 to Ag + on the surface of unmodified AgNPs, which reduces the surface plasmon resonance absorption peak and changes the color of the solution. 42–44 Another method for determining cysteine using AgNPs colorimetry is based on the principle of aggregation. One approach involves using metal ions such as Ca 2+ and Cr 3+ as crosslinking agents to induce aggregation for colorimetric detection.…”