The different functional groups responsible for the reduction and stabilization of the biosynthesized Ag-NPs were identified using FT-IR analysis (Cary 630 FTIR model, Tokyo, Japan). The KBr technique was used to perform the following FT-IR analysis: Under high pressure, 300 mg of biosynthesized Ag-NPs were thoroughly mixed with KBr to create a slice that was scanned at a wave number between 400 and 4000 cm−1 [32 (link)].
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