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Krishna Kumar Jaiswal,Ishita Banerjee,Swapnamoy Dutta,Ravikant Verma,Lokanadhan Gunti,Sharad Awasthi,Mayank Bhushan,Vinod Kumar,Mohamed Fahad Alajmi,Afzal Hussain 한국공업화학회 2022 Journal of Industrial and Engineering Chemistry Vol.107 No.-
The rapid emergence of multidrug-resistant microbes has turned into the main threat to public healthworldwide. The preparation and application of nanomaterial-based antimicrobials have increased toaddress this problem with great significance. This study has investigated the bio-fabrication of polycrystallineAg-NCs using BCE as a reducer and stabilizer under microwave irradiation. Ag-NCs formationswere optimized using varying concentrations of BCE and silver acetate. The XRD confirmed the incidenceof phases of nanostructured crystals of Ag/AgO/AgCl. The average crystallite sizes were calculated to be22.19, 36.65, and 36.65 nm for Ag, AgO, and AgCl, respectively. SERS spectra revealed the vibrationalmodes of the Ag and Ag-O stretch bands. FTIR spectra have indicated the incidence of chemical fingerprintsfor Ag-NCs and BCE biomolecules. SEM and HR-TEM micrographs exhibited the almost sphericalto the oval shape of 50 nm. SAED pattern attested to silver crystallinity in agreement with XRD analysis. The MIC values of the Ag-NCs against Escherichia coli, Staphylococcus aureus, Aspergillus brasiliensis, andRhizopus stolonifer were observed to be 120, 60, 200, and 100 mg/ml, respectively. This study has demonstratedthe facile method to prepare polycrystalline Ag-NCs with appropriate structural and morphologicalcharacteristics for antimicrobial applications.