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Kazantsev SO, Bakina OV, Pervikov AV, Rodkevich NG, Quang NH, Le Thi LA, Timofeev SS, Lozhkomoev AS. Antimicrobial Activity and Sorption Behavior of Al 2O 3/Ag Nanocomposites Produced with the Water Oxidation of Bimetallic Al/Ag Nanoparticles. NANOMATERIALS (BASEL, SWITZERLAND) 2022; 12:3888. [PMID: 36364663 PMCID: PMC9658416 DOI: 10.3390/nano12213888] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/13/2022] [Revised: 10/28/2022] [Accepted: 10/31/2022] [Indexed: 06/16/2023]
Abstract
The water oxidation of bimetallic Al/Ag nanoparticles has been shown to yield nanoscale structures whose morphology, phase composition and textural characteristics are determined by the synthesis conditions. Flower-like nanoscale structures with silver nanoparticles, with an average size of 17 nm, are formed in water at 60 °C. Under hydrothermal conditions at temperatures of 200 °C and a pressure of 16 MPa, boehmite nanoplatelets with silver nanoparticles, with an average size of 22 nm, are formed. The oxidation of Al/Ag nanoparticles using humid air at 60 °C and 80% relative humidity results in the formation of rod-shaped bayerite nanoparticles and Ag nanoparticles with an average size of 19 nm. The thermal treatment of nanoscale structures obtained at a temperature of 500 °C has been shown to lead to a phase transition into γ-Al2O3, while maintaining the original morphology, and to a decrease in the average size of the silver nanoparticles to 12 nm and their migration to the surface of nanoscale structures. The migration of silver to the nanoparticle surface influences the formation of a double electric layer of particles, and leads to a shift in the pH of the zero-charge point by approximately one, with the nanostructures acquiring pronounced antimicrobial properties.
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Affiliation(s)
- Sergey O. Kazantsev
- Laboratory of Nanobioengineering, Institute of Strength Physics and Materials Science, Siberian Branch, Russian Academy of Sciences, Pr. Akademicheskii 2/4, 634055 Tomsk, Russia
| | - Olga V. Bakina
- Laboratory of Nanobioengineering, Institute of Strength Physics and Materials Science, Siberian Branch, Russian Academy of Sciences, Pr. Akademicheskii 2/4, 634055 Tomsk, Russia
| | - Aleksandr V. Pervikov
- Laboratory of Physical Chemistry of Ultrafine Materials, Institute of Strength Physics and Materials Science, Siberian Branch, Russian Academy of Sciences, Pr. Akademicheskii 2/4, 634055 Tomsk, Russia
| | - Nikolay G. Rodkevich
- Laboratory of Physical Chemistry of Ultrafine Materials, Institute of Strength Physics and Materials Science, Siberian Branch, Russian Academy of Sciences, Pr. Akademicheskii 2/4, 634055 Tomsk, Russia
| | - Nguyen Hong Quang
- Laboratory Military Medicine and Adaptation, Vietnam-Russia Tropical Center, Institute of Bio-Medicine, Ngia Do, Kau Zai, St. Nguyen Van Huen, 63, Hanoi 11307, Vietnam
| | - Lan Anh Le Thi
- Laboratory of Toxicity and Tropical Diseases, Vietnam-Russia Tropical Center, Institute of Bio-Medicine, Ngia Do, Kau Zai, St. Nguyen Van Huen, 63, Hanoi 11307, Vietnam
| | - Sergei S. Timofeev
- Laboratory of Physical Chemistry of Ultrafine Materials, Institute of Strength Physics and Materials Science, Siberian Branch, Russian Academy of Sciences, Pr. Akademicheskii 2/4, 634055 Tomsk, Russia
| | - Aleksandr S. Lozhkomoev
- Laboratory of Nanobioengineering, Institute of Strength Physics and Materials Science, Siberian Branch, Russian Academy of Sciences, Pr. Akademicheskii 2/4, 634055 Tomsk, Russia
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Shittu OK, Ihebunna O, Gara TY. Removal of contaminant in electroplating wastewater and its toxic effect using biosynthesized silver nanoparticles. SN APPLIED SCIENCES 2022. [DOI: 10.1007/s42452-022-05157-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
Abstract
Abstract
This research is designed to remove contaminant in electroplating wastewater, using biosynthesize silver nanoparticles (SNPs) and to determine its in-vivo toxic effect. Silver nanoparticles (SNPs: 1,2,3 and 4) synthesized at different conditions and characterised, yielded spherical shapes of irregular sizes comprising of − OH, − C=C, − C=O, − C–H and − NO functional groups. The electroplating wastewater treated with the synthesized SNPs, were subjected to physicochemical analysis which revealed the ability of the SNPs to remove pollutants, with SNP4 displaying a higher affinity. The haematological investigation disclosed no significant impact on haemoglobin, packed cell volume, mean corpuscular haemoglobin concentration, red blood cell, neutrophils and lymphocytes compared to the control group. Although, the liver tissues revealed toxic effects of the treated wastewater. The study validates that the biosynthesized SNPs contained stabilizing and reducing agent and also has the ability to eliminate pollutant in electroplating wastewater.
Article highlights
Spherical shaped SNPs exhibits loosely bound properties and aggregation.
SNPs contained functional groups acting as stabilizing and reducing agent.
The SNPs treated wastewater had no significant impact on haemoglobin, packed cell volume and red blood cell in rats.
The synthesized SNPs had the ability to remove contaminant from the electroplating wastewater.
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