Biogenic Silver Nanocatalyst for Efficient Removal of Ampicillin, Ciprofloxacin, and Tetracycline from Water

Author: Bibin Mohan, Padikkamannil Abishad, Marita Dias, Deepika Roy Kochilat Ameyaroy, Shivaprasad Shivappa Desai, Moonnamthodi Moosarikkal Reshma, Vinod Valil Kunjukunju, Asha Karthikeyan, Sanis Juliet, and Jess Vergis

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Abstract

Water pollution from wastewater contaminated with bacterial pathogens and antibiotic residues results in severe public health threats. Nanomaterials have widely been employed as suitable alternatives for wastewater treatment due to their high surface area-to-volume ratio. In this study, we explored the antibacterial capabilities and antibiotic removal potential of green synthesized silver nanoparticles (AgNPs).The antimicrobial ability of the green synthesized AgNPs was assessed against the multi-drug resistant (MDR) isolates of enteroaggregative E. coli (EAEC), non-typhoidal Salmonella (NTS) species S. Typhimurium and S. Enteritidis and methicillin-resistant Staphylococcus aureus (MRSA) and their antibiotic removal was assessed against three classes of antibiotics namely ampicillin, ciprofloxacin, and tetracycline. The antibacterial results indicated minimum inhibitory concentration (MIC) and minimum bactericidal concentration (MBC) to be 7.80 µg/mL, and 15.625 µg/mL respectively. The photocatalytic antibiotic removal results indicated that AgNPs could effectively remove all three different classes of antibiotics and the removal of ampicillin and ciprofloxacin was better achieved as compared to that of tetracycline and the removal peaked at a particular point of time for the tested antibiotics, beyond which there were no appreciable elimination

Keywords

Ampicillin, Antibiotic removal, Antimicrobial resistance, Ciprofloxacin, Nanoparticle, Silver, Tetracycline

Conclusion

In short, this study evaluated the photocatalytic capability of green synthesized AgNPs for the removal of ampicillin, ciprofloxacin, and tetracycline under sunlight. This study successfully indicated the removal of ampicillin as well as ciprofloxacin in comparison to tetracycline by UV-Vis spectroscopy. Nonetheless, the removal of antibiotics peaked at a particular period beyond which the removal was negligible with the amount of time. The antibiotic removal experiments using AgNPs demonstrated that photocatalytic degradation outperforms adsorption in the removal of antibiotics. Further, in-depth chromatography-based kinetic studies are required to investigate the rate of antibiotic removal, which could be applied to wastewater treatment strategies

References

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How to cite this article

Bibin Mohan, Padikkamannil Abishad, Marita Dias, Deepika Roy Kochilat Ameyaroy, Shivaprasad Shivappa Desai, Moonnamthodi Moosarikkal Reshma, Vinod Valil Kunjukunju, Asha Karthikeyan, Sanis Juliet, and Jess Vergis (2024). Biogenic Silver Nanocatalyst for Efficient Removal of Ampicillin, Ciprofloxacin, and Tetracycline from Water. Biological Forum – An International Journal, 16(4): 50-53.