Green fabrication of a novel cetylpyridinium-bagasse adsorbent for sequestration of micropollutant 2,4-D herbicide in aqueous system and its antibacterial properties against S. aureus and E. coli

Synthesis and Characterization of Novel Core–Shell ZnO@SiO2 Nanoparticles and Application in Antibiotic and Bacteria Removal

“…The potential for the antibacterial activity of ZnO@SiO 2 against E. coli was studied in sterile media under fixed experimental conditions according to a published method. 34 ZnO@SiO 2 was added to the bacterial strain and incubated. The growth of E. coli was estimated with and without an adsorbent by counting the number of colony-forming units (CFU).…”

“…The number of E. coli was counted using the spread plate technique. 34 After a contact time of 30 min, an accurate amount of bacteria culture (1 mL) was transferred from the flask and appropriately diluted. Subsequently, a drop of the diluted suspension was put onto agar plates and incubated at 37 °C for 16 h. The CFU was then calculated with the appropriate dilution factor and indicated as CFU mL –1 .…”

“…The potential for the antibacterial activity of ZnO@SiO 2 against E. coli was studied in sterile media under fixed experimental conditions according to a published method . ZnO@SiO 2 was added to the bacterial strain and incubated.…”

“… 32 , 33 For an antibacterial study, various strains of Escherichia coli are often used as test bacteria. 34 − 36 To our best knowledge, the removal of AMX and E. coli using ZnO@SiO 2 based on rice husk has not been previously investigated.…”

“…Amoxicillin (AMX) belongs to the β-lactam-containing penicillin family that is widely used to treat various bacterial infections. However, excessive use has led to bacterial strains becoming highly resistant to AMX. , For an antibacterial study, various strains of Escherichia coli are often used as test bacteria. − To our best knowledge, the removal of AMX and E. coli using ZnO@SiO 2 based on rice husk has not been previously investigated.…”