To confirm phytosynthesis, the dark brown colloidal solution was analyzed using ultraviolet–visible (UV–Vis) spectroscopy (Perkin-Elmer Ltd) between 200 and 800 nm.39 (link) After confirmation of phytosynthesis, the solution of PF@AgNPs was centrifuged for 20 min at 15,000 × g. The supernatant was removed and the pellet was redispersed in distilled water and centrifuged again for 20 min at 15,000 × g. This procedure was repeated for three times.40 (link) Finally, the pellet was collected and dried into a fine powder that was used for further analysis. Fourier transform infrared (FTIR) analysis of PF@AgNPs was carried out at 4000–500 cm−1 using KBr pellets (Perkin-Elmer Ltd).41 (link) The x-ray diffraction (XRD) pattern of PF@AgNPs was recorded in the 2θ range of 10° to 90° using Bruker D8 Advance powder XRD (Bruker AXS GmbH, Karlsruhe, Germany).42 (link) Thermogravimetric analysis (TGA) and derivative thermogravimetric analysis (DTA) were performed using a TGA-1 analyzer (Mettler Toledo, Switzerland).43 (link) The shapes and sizes of PF@AgNPs and the selected area electron diffraction (SAED) pattern of PF@AgNPs were determined using transmission electron microscopy (TEM).44 (link) The polydispersity index (PI) and zeta potential values were recorded using dynamic light scattering (DLS; Brookhaven Instruments).45 (link)
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Characterization of PF@AgNPs via Multimodal Analysis
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Corresponding Organization : North University of China
Other organizations : Indian Institute of Chemical Technology
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Variable analysis
independent variables
- None explicitly mentioned
- Ultraviolet–visible (UV–Vis) spectroscopy analysis of the dark brown colloidal solution between 200 and 800 nm
- Fourier transform infrared (FTIR) analysis of PF@AgNPs at 4000–500 cm^{-1}
- X-ray diffraction (XRD) pattern of PF@AgNPs in the 2θ range of 10° to 90°
- Thermogravimetric analysis (TGA) and derivative thermogravimetric analysis (DTA) of PF@AgNPs
- Shapes and sizes of PF@AgNPs and the selected area electron diffraction (SAED) pattern of PF@AgNPs determined using transmission electron microscopy (TEM)
- Polydispersity index (PI) and zeta potential values of PF@AgNPs recorded using dynamic light scattering (DLS)
- None explicitly mentioned
- No positive or negative controls were explicitly mentioned in the provided information.
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