研究目的
Investigating the effectiveness of cellulose paper treated with Cu and Ag oxide nanoparticles synthesized via pulsed laser ablation in distilled water in the annihilation of bacteria from contaminated water.
研究成果
The treatment of cellulose filter paper with Cu and Ag oxide nanoparticles synthesized via PLAL shows promising results in the annihilation of S. aureus and E. coli bacteria from contaminated water. The absence of any chemical reagents in the synthesis of the NPs by PLAL augurs well for the safe and optimal use of these NPs in such applications.
研究不足
The study did not quantify the amount of nanoparticles in the filtered water, which is crucial for assessing the safety of the filtered water for drinking purposes.
1：Experimental Design and Method Selection:
Nanoparticles of copper and silver were synthesized via pulsed laser ablation in distilled water and applied to cellulose filter paper to test their antibacterial efficacy.
2：Sample Selection and Data Sources:
Two common pathogenic bacteria, Staphylococcus aureus and Escherichia coli, were used to test the antibacterial potential of the nanoparticle-treated cellulose filter papers.
3：List of Experimental Equipment and Materials:
Q-switched Nd:YAG laser, cellulose filter papers (Whatman grade 1), nutrient agar, nutrient broth, UV–visible spectrophotometer, field emission scanning electron microscope (FESEM).
4：Experimental Procedures and Operational Workflow:
The filter papers were treated with nanoparticle solutions, dried, and then used to filter bacteria-contaminated water. The antibacterial efficacy was tested using the spread plate method on agar and growth kinetic study.
5：Data Analysis Methods:
The growth of bacteria was monitored by measuring the optical density at 600 nm, and the morphology of the bacteria was observed under FESEM.
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