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Bulletin of the National Research Centre
Fig. 1 | Bulletin of the National Research Centre

Fig. 1

From: Evaluation of Piper betle mediated silver nanoparticle in post-harvest physiology in relation to vase life of cut spike of Gladiolus

Fig. 1

UV-vis spectra of Piper betle mediated silver nanoparticles recorded after overnight incubation at room temperature: a After being treated at different pH (pH − 6, pH − 7, pH − 8, pH − 9, and pH − 10). b After being treated at different temperatures (30 °C, 40 °C, 50 °C, 60 °C, and 70 °C). c UV-vis spectra of Piper betle mediated silver nanoparticles (incubate: 60 °C; pH 9) showing maximum absorbance at 420 nm. c (i) Transmission electron micrograph (TEM) image of synthesized silver nanoparticles. The SAED pattern of PbSNPs is presented in the inset. c (ii) Represent color change detected in the reaction mixture containing ethanolic extract of Piper betle leaf and 1 mM silver nitrate solution

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