- Title
- Fabrication of highly and poorly oxidized silver oxide/silver/tin(IV) oxide nanocomposites and their comparative anti-pathogenic properties towards hazardous food pathogens
- Creator
- Ul Hoque, Md. Ikram; Chowdhury, Al-Nakib; Hossain, Md. Shahriar A.; Rahman, Saidur; Donne, Scott W.; Kaneti, Yusuf Valentino; Islam, Md. Tofazzal; Firoz, Shakhawat H.; Luba, Ummayhanni; Alowasheeir, Azhar; Rahman, Md. Mahbubur; Rehman, Ateeq Ur; Ahmad, Syed Haseeb Ali; Holze, Rudolf
- Relation
- ARC.FT150100479 http://purl.org/au-research/grants/arc/FT150100479
- Relation
- Journal of Hazardous Materials Vol. 408, Issue 15 April 2021, no. 124896
- Publisher Link
- http://dx.doi.org/10.1016/j.jhazmat.2020.124896
- Publisher
- Elsevier
- Resource Type
- journal article
- Date
- 2021
- Description
- Herein, we report the fabrication of highly oxidized silver oxide/silver/tin(IV) oxide (HOSBTO or Ag3+-enriched AgO/Ag/SnO2) nanocomposite under a robust oxidative environment created with the use of concentrated nitric acid. Tin(IV) hydroxide nanofluid is added to the reaction mixture as a stabilizer for the Ag3+-enriched silver oxide in the nanocomposite. The formation of Ag nanoparticles in this nanocomposite originates from the decomposition of silver oxides during calcination at 600 °C. For comparison, poorly oxidized silver oxide/silver/tin(IV) oxide (POSBTO with formula AgO/Ag/SnO2) nanocomposite has also been prepared by following the same synthetic procedures, except for the use of concentrated nitric acid. Finally, we studied in detail the anti-pathogenic capabilities of both nanocomposites against four hazardous pathogens, including pathogenic fish bacterium (Stenotrophomonas maltophilia stain EP10), oomycete (Phytophthora cactorum strain P-25), and two different strains of pathogenic strawberry fungus, BRSP08 and BRSP09 (Collectotrichum siamense). The bioassays reveal that the as-prepared HOSBTO and POSBTO nanocomposites exhibit significant inhibitory activities against the tested pathogenic bacterium, oomycete, and fungus in a dose-dependent manner. However, the degree of dose-dependent effectiveness of the two nanocomposites against each pathogen largely varies.
- Subject
- highly and poorly oxidized silver oxides; silver-based nanocomposites; Tin(IV) hydroxide nanofluid; anti-pathogenic study; food pathogens
- Identifier
- http://hdl.handle.net/1959.13/1435319
- Identifier
- uon:39676
- Identifier
- ISSN:0304-3894
- Language
- eng
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