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Abebe B, Gupta NK, Tsegaye D. A critical mini-review on doping and heterojunction formation in ZnO-based catalysts. RSC Adv 2024; 14:17338-17349. [PMID: 38813127 PMCID: PMC11134265 DOI: 10.1039/d4ra02568g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2024] [Accepted: 05/23/2024] [Indexed: 05/31/2024] Open
Abstract
This mini-review on doping and heterojunctions for catalysis applications provides a comprehensive overview of key aspects. Doping, when carried out adequately with a uniform distribution, creates a new energy level that significantly enhances charge transfer and light absorption. This new level alters the material's morphology and enhances intrinsic defects. For instance, ZnO, despite its exceptional band edge concerning oxygen reduction and water oxidation redox potentials, faces the issue of electron-hole recombination. However, forming a heterojunction can effectively aid charge transfer and prolong electron-hole relaxation without recombination. This is where the role of doping and heterojunctions becomes crucial. Additionally, incorporating noble metals with S- and Z-scheme heterojunctions offers a promising mechanism for charge transfer and visible light harvesting, further amplifying the catalytic properties.
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Affiliation(s)
- Buzuayehu Abebe
- Department of Applied Chemistry, School of Applied Natural Science, Adama Science and Technology University P.O. Box 1888 Adama Ethiopia
| | - Neeraj K Gupta
- Department of Applied Chemistry, School of Applied Natural Science, Adama Science and Technology University P.O. Box 1888 Adama Ethiopia
| | - Dereje Tsegaye
- Department of Applied Chemistry, School of Applied Natural Science, Adama Science and Technology University P.O. Box 1888 Adama Ethiopia
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2
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Mengistu A, Naimuddin M, Abebe B. Optically amended biosynthesized crystalline copper-doped ZnO for enhanced antibacterial activity. RSC Adv 2023; 13:24835-24845. [PMID: 37608973 PMCID: PMC10440632 DOI: 10.1039/d3ra04488b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2023] [Accepted: 08/09/2023] [Indexed: 08/24/2023] Open
Abstract
The emergence and re-emergence of antibiotic-resistant bacteria is a potential threat to treating infectious diseases. This study employed a nanometer-scale green synthesis using an extract of Solanum incanum leaves to obtain nanoparticles (NPs) and nanocomposites (NCs) possessing antibacterial properties. The FESEM-EDS elemental mapping analysis proved the novelty of the green synthesis approach in synthesizing a copper-doped ZnO NCs with good dopant distribution. The crystallinity and ZnO bandgap were adjusted by extrinsic copper doping in the ZnO lattice. The optical property adjustments from 3.04 to 2.97 eV for indirect Kubelka-Munk functions were confirmed from DRS-UV-vis analysis. The dopant inclusion in the host lattice was also confirmed by the angle shift on the XRD pattern analysis relative to single ZnO. In addition to doping, the XRD pattern analysis also showed the development of CuO crystals. The lattice fringe values from HRTEM analysis confirmed the existence of both CuO and ZnO crystals with local heterojunctions. Doping and heterojunctions have crucial values in charge transfer and visible light harvesting behaviour, as proved by the PL analysis. The synergistic effects of the doped NCs showed greater antibacterial activity against both Gram-positive and Gram-negative bacteria as a result of more ROS generation through the bacteria-cell-catalyst interaction and release of metal ions. The antioxidant potential of the doped NCs was found to be higher than that of single NPs, using the 2,2-diphenyl-1-picrylhydrazyl free radical scavenging assay and is expected to impart protective effects to the host cells by scavenging destructive free radicals. Thus, the overall analysis leads to the conclusion that the potentiality of synthesized materials has a future outlook for biological applications, especially in the development of antimicrobials to combat antibiotic-resistant bacteria and microbes.
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Affiliation(s)
- Adam Mengistu
- Department of Applied Biology, School of Applied Natural Science, Adama Science and Technology University P.O. Box:1888 Adama Ethiopia
| | - Mohammed Naimuddin
- Department of Applied Biology, School of Applied Natural Science, Adama Science and Technology University P.O. Box:1888 Adama Ethiopia
| | - Buzuayehu Abebe
- Department of Applied Chemistry, School of Applied Natural Science, Adama Science and Technology University P.O. Box:1888 Adama Ethiopia
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3
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P D DA, Plashintania DR, Putri RM, Wibowo I, Ramli Y, Herdianto S, Indarto A. Synthesis of zinc oxide nanoparticles using methanol propolis extract (Pro-ZnO NPs) as antidiabetic and antioxidant. PLoS One 2023; 18:e0289125. [PMID: 37490488 PMCID: PMC10368249 DOI: 10.1371/journal.pone.0289125] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2023] [Accepted: 07/12/2023] [Indexed: 07/27/2023] Open
Abstract
In recent times, the overall health of individuals has been declining due to unhealthy lifestyles, leading to various diseases, including diabetes. To address this issue, antidiabetic and antioxidant agents are required to back-up human well-being. Zinc oxide (ZnO) is one such substance known for its antidiabetic and antioxidant effects. To enhance its capability and effectiveness, propolis was utilized to synthesize zinc oxide nanoparticles (Pro-ZnO NPs). The objective of this study was to synthesize Pro-ZnO NPs and assess their performance by conducting inhibition assays against α-amylase and α-glucosidase enzymes, as well as a 2,2-diphenyl-1-picrylhydrazyl (DPPH) free radical scavenging assay. The results showed that Pro-ZnO NPs were formed in a hexagonal wurtzite structure, with particle sizes ranging from 30 to 50 nm and an absorption band observed at 341 nm. The stability, chemical properties, and crystallography of Pro-ZnO NPs were also thoroughly examined using appropriate methods. The Pro-ZnO NPs demonstrated significant inhibitory effects against α-amylase and α-glucosidase enzymes, with inhibition rates reaching 69.52% and 73.78%, respectively, whereas the antioxidant activity was as high as 70.76%. Consequently, with their high inhibition rates, the Pro-ZnO NPs demonstrate the potential to be employed as a natural agent for combating diabetes and promoting antioxidant effects.
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Affiliation(s)
- Dwi Ajeng P D
- School of Life Sciences and Technology, Institut Teknologi Bandung, Bandung, Indonesia
| | | | - Rindia M Putri
- Biochemistry Research Division, Faculty of Mathematics and Natural Sciences, Institut Teknologi Bandung, Bandung, Indonesia
| | - Indra Wibowo
- School of Life Sciences and Technology, Institut Teknologi Bandung, Bandung, Indonesia
| | - Yusrin Ramli
- Graduate School of Science and Technology, Hirosaki University, Hirosaki, Japan
| | - Sabrina Herdianto
- Department of Chemical Engineering, Institut Teknologi Bandung, Bandung, Indonesia
| | - Antonius Indarto
- Department of Chemical Engineering, Institut Teknologi Bandung, Bandung, Indonesia
- Department of Bioenergy Engineering and Chemurgy, Institut Teknologi Bandung, Bandung, Indonesia
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4
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Abebe B, Tsegaye D, Sori C, Renuka Prasad RC, Murthy HCA. Cu/CuO-Doped ZnO Nanocomposites via Solution Combustion Synthesis for Catalytic 4-Nitrophenol Reduction. ACS OMEGA 2023; 8:9597-9606. [PMID: 36936329 PMCID: PMC10018707 DOI: 10.1021/acsomega.3c00141] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/09/2023] [Accepted: 02/22/2023] [Indexed: 06/18/2023]
Abstract
The synthesis of optoelectrically enhanced nanomaterials should be continuously improved by employing time- and energy-saving techniques. The porous zinc oxide (ZnO) and copper-doped ZnO nanocomposites (NCs) were synthesized by the time- and energy-efficient solution combustion synthesis (SCS) approach. In this SCS approach, once the precursor-surfactant complex ignition point is reached, the reaction starts and ends within a short time without the need for any external energy. The TGA-DTA analysis confirmed that 500 °C was the point at which stable metal oxide was obtained. The doping and heterojunction strategy improved the optoelectric properties of the NCs more than the individual constituents, which then enhanced the materials' charge transfer and optical absorption capabilities. The porosity, nanoscale crystallite size (15-50 nm), and formation of Cu/CuO-ZnO NCs materials were confirmed from the XRD, SEM, and TEM/HRTEM analyses. The obtained d-spacing values of 0.275 and 0.234 nm confirm the formation of ZnO and CuO crystals, respectively. The decrease in photoluminescence intensity for the doped NCs corroborates a reduction in electron-hole recombination. On the Mott-Schottky analysis, the positive slope for ZnO confirms the n-type character, while the negative and positive slopes of the NCs confirm the p- and n-type characters, respectively. A diffusion-controlled type of charge transfer process on the electrode surface was confirmed from the cyclic voltammetric analysis. Thus, the overall analysis shows the applicability of the less expensive and more efficient SCS for several applications, such as catalysis and sensors. To confirm this, an organic catalytic reduction reaction of 4-nitrophenol to 4-aminophenol was tested. Within three and a half minutes, the catalytic reduction result showed the great potential of NCs over ZnO NPs. Thus, the energy- and time-saving SCS approach has a great future outlook as an industrial pollutant catalytic reduction application.
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Affiliation(s)
- Buzuayehu Abebe
- Department
of Applied Chemistry, School of Applied Natural Science, Adama Science and Technology University, P.O. Box 1888, Adama 1888, Ethiopia
| | - Dereje Tsegaye
- Department
of Applied Chemistry, School of Applied Natural Science, Adama Science and Technology University, P.O. Box 1888, Adama 1888, Ethiopia
| | - Chaluma Sori
- Department
of Applied Chemistry, School of Applied Natural Science, Adama Science and Technology University, P.O. Box 1888, Adama 1888, Ethiopia
| | | | - H. C. Ananda Murthy
- Department
of Applied Chemistry, School of Applied Natural Science, Adama Science and Technology University, P.O. Box 1888, Adama 1888, Ethiopia
- Department
of Prosthodontics, Saveetha Dental College & Hospital, Saveetha
Institute of Medical and Technical Science (SIMATS), Saveetha University, Chennai 600077, Tamil Nadu, India
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5
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Hydrophobic self-cleaning micro-nano composite polyethylene-based agricultural plastic film with light conversion and abrasion resistance. Colloids Surf A Physicochem Eng Asp 2023. [DOI: 10.1016/j.colsurfa.2022.130621] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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6
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Abebe B, Kefale B, Leku DT. Synthesis of copper-silver-zinc oxide nanocomposites for 4-nitrophenol reduction: doping and heterojunction. RSC Adv 2023; 13:4523-4529. [PMID: 36760313 PMCID: PMC9893880 DOI: 10.1039/d2ra07845g] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2022] [Accepted: 01/30/2023] [Indexed: 02/05/2023] Open
Abstract
The charge transfer and visible-light absorption capacities of stable materials are crucial in several applications, such as catalysis, absorption, sensors, and bioremediation. Copper-silver-zinc oxide nanocomposites (NCs) were synthesized using PVA as a capping agent and urea as a stabilizing agent. DTG analysis confirmed 500 °C was the optimum temperature for the total decomposition of PVA after capping the nanoparticles (NPs) to yield a pure composite. The XRD analysis showed the presence of copper inclusions in the ZnO lattice and the formation of Ag and CuO heterojunctions with ZnO. The photoluminescence (PL) analysis confirmed the more significant visible light absorption and charge transfer properties of the composite compared to those of single ZnO NPs. Foam-type porosity occurred during gas evolution at many of the points shown in the SEM/TEM images. Slight lattice fringe differences between the composite and ZnO NPs due to copper inclusion were confirmed from the HRTEM image and XRD pattern analysis. The crystallinity of the NPs and NCs was confirmed by the XRD pattern and SAED analysis. The diffusion-controlled charge transfer process was witnessed through CV electrochemical analysis. Thus, the energy- and time-efficient solution combustion synthesis (SCS) approach has a crucial future outlook, specifically for an industrial, scalable application. The NCs demonstrated more potential than ZnO NPs in an organic catalytic reduction reaction of 4-nitrophenol to 4-aminophenol.
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Affiliation(s)
- Buzuayehu Abebe
- Adama Science and Technology University, Department of Applied Chemistry Adama 1888 Ethiopia
| | - Bontu Kefale
- Adama Science and Technology University, Department of Applied Chemistry Adama 1888 Ethiopia
| | - Dereje Tsegaye Leku
- Adama Science and Technology University, Department of Applied Chemistry Adama 1888 Ethiopia
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Guo W, Wang S, Hao H, Kong X, Yan H, Zhu H, Li Y, Zhou H, Zhong D, Dai F. Introducing anthracene and amino groups into Ln-OFs for the photoreduction of Cr( vi) without additional photosensitizers or cocatalysts. Inorg Chem Front 2023. [DOI: 10.1039/d3qi00102d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/07/2023]
Abstract
The stable LCUH-100 was designed and synthesized, by incorporating chromophores into lanthanide MOFs, as a high-efficiency photocatalyst, which can rapidly and efficiently reduce Cr(vi) under visible-light irradiation and has good cycle stability.
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Affiliation(s)
- Wenxiao Guo
- Shandong Provincial Key Laboratory of Chemical Energy Storage and Novel Cell Technology, School of Pharmacy, School of Chemistry and Chemical Engineering, College of Materials Science and Engineering, and Dongchang College, Liaocheng University, Liaocheng 252059, China
| | - Shufang Wang
- Shandong Provincial Key Laboratory of Chemical Energy Storage and Novel Cell Technology, School of Pharmacy, School of Chemistry and Chemical Engineering, College of Materials Science and Engineering, and Dongchang College, Liaocheng University, Liaocheng 252059, China
| | - Hongguo Hao
- Shandong Provincial Key Laboratory of Chemical Energy Storage and Novel Cell Technology, School of Pharmacy, School of Chemistry and Chemical Engineering, College of Materials Science and Engineering, and Dongchang College, Liaocheng University, Liaocheng 252059, China
| | - Xiangjin Kong
- Shandong Provincial Key Laboratory of Chemical Energy Storage and Novel Cell Technology, School of Pharmacy, School of Chemistry and Chemical Engineering, College of Materials Science and Engineering, and Dongchang College, Liaocheng University, Liaocheng 252059, China
| | - Hui Yan
- Shandong Provincial Key Laboratory of Chemical Energy Storage and Novel Cell Technology, School of Pharmacy, School of Chemistry and Chemical Engineering, College of Materials Science and Engineering, and Dongchang College, Liaocheng University, Liaocheng 252059, China
| | - Hongjie Zhu
- Shandong Provincial Key Laboratory of Chemical Energy Storage and Novel Cell Technology, School of Pharmacy, School of Chemistry and Chemical Engineering, College of Materials Science and Engineering, and Dongchang College, Liaocheng University, Liaocheng 252059, China
| | - Yunwu Li
- Shandong Provincial Key Laboratory of Chemical Energy Storage and Novel Cell Technology, School of Pharmacy, School of Chemistry and Chemical Engineering, College of Materials Science and Engineering, and Dongchang College, Liaocheng University, Liaocheng 252059, China
| | - Huawei Zhou
- Shandong Provincial Key Laboratory of Chemical Energy Storage and Novel Cell Technology, School of Pharmacy, School of Chemistry and Chemical Engineering, College of Materials Science and Engineering, and Dongchang College, Liaocheng University, Liaocheng 252059, China
| | - Dichang Zhong
- Institute for New Energy Materials and Low Carbon Technologies School of Materials Science and Engineering Tianjin University of Technology, Tianjin 300384, China
| | - Fangna Dai
- College of Science, School of Materials Science and Engineering, China University of Petroleum (East China), Qingdao, Shandong 266580, China
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8
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Pereyra JYDC, Barbero CA, Acevedo DF, Yslas EI. Antibacterial effects of in situzinc oxide nanoparticles generated inside the poly (acrylamide-co-hydroxyethylmethacrylate) nanocomposite. NANOTECHNOLOGY 2022; 34:045101. [PMID: 36215962 DOI: 10.1088/1361-6528/ac98cf] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/01/2022] [Accepted: 10/10/2022] [Indexed: 06/16/2023]
Abstract
The present work reports the antibacterial activity againstPseudomonasaeruginosaof a nanocomposite made of zinc oxide nanoparticles dispersed in a poly(acrylamide-co-hydroxyethylmethacrylate) matrix (PAAm-Hema-ZnONPs). Thein situsynthesis of ZnONPs inside of the PAAm-Hema crosslinked network is described. Moreover, the physicochemical properties of the PAAm-Hema-ZnONPs nanocomposite are analyzed. The results confirm that the PAAm-Hema hydrogel provides an excellent scaffold to generate ZnONPs. The presence of ZnONPs inside the hydrogel was confirmed by UV-visible (band at 320 nm), by Infrared spectroscopy (peak at 470 cm-1), SEM, and TEM images. The presence of NPs in PAAm-Hema diminish the swelling percentage by 70%, and the Young modulus by 33.7%, compared with pristine hydrogel. The 75% of ZnONPs are released from the nanocomposite after 48 h of spontaneous diffusion, allowing the use of the nanocomposite as an antibacterial agent.In vitro, the agar diffusion test presents an inhibition halo againstP. aeruginosabacteria 50% higher than the unloaded hydrogel. Also, the PAAm-Hema-ZnONPs live/dead test shows 54% of dead cells more than the hydrogel. These results suggest that the easy, one-step way generated composites can be used in biomedical applications as antimicrobial agents.
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Affiliation(s)
- J Y Del C Pereyra
- Research Institute for Energy Technologies and Advanced Materials (IITEMA), National University of Río Cuarto (UNRC)-National Council of Scientific and Technical Research (CONICET), Ruta Nacional N◦ 36, Km 601, Río Cuarto (Córdoba) 5800, Argentina
- Chemistry Department, FCEFQyN-National University of Río Cuarto, Río Cuarto (Córdoba) 5800, Argentina
| | - C A Barbero
- Research Institute for Energy Technologies and Advanced Materials (IITEMA), National University of Río Cuarto (UNRC)-National Council of Scientific and Technical Research (CONICET), Ruta Nacional N◦ 36, Km 601, Río Cuarto (Córdoba) 5800, Argentina
- Chemistry Department, FCEFQyN-National University of Río Cuarto, Río Cuarto (Córdoba) 5800, Argentina
| | - D F Acevedo
- Research Institute for Energy Technologies and Advanced Materials (IITEMA), National University of Río Cuarto (UNRC)-National Council of Scientific and Technical Research (CONICET), Ruta Nacional N◦ 36, Km 601, Río Cuarto (Córdoba) 5800, Argentina
- Chemical Technology Department, Faculty of Engineering, National University of Río Cuarto, Río Cuarto (Córdoba) 5800, Argentina
| | - E I Yslas
- Research Institute for Energy Technologies and Advanced Materials (IITEMA), National University of Río Cuarto (UNRC)-National Council of Scientific and Technical Research (CONICET), Ruta Nacional N◦ 36, Km 601, Río Cuarto (Córdoba) 5800, Argentina
- Molecular Biology Department, FCEFQyN-National University of Río Cuarto, Río Cuarto (Córdoba) 5800, Argentina
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Kong J, Zhang J, Shen M, Zhang S, Shen P, Ren C. Preparation of manganese(II) oxide doped zinc oxide nanocomposites with improved antibacterial activity via ROS. Chem Phys Lett 2022. [DOI: 10.1016/j.cplett.2022.140053] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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10
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Matyjasik W, Długosz O, Lis K, Banach M. Nanohybrids of oxides nanoparticles-chitosan and their antimicrobial properties. NANOTECHNOLOGY 2022; 33:435701. [PMID: 35820406 DOI: 10.1088/1361-6528/ac805e] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/25/2022] [Accepted: 07/12/2022] [Indexed: 06/15/2023]
Abstract
Growing international problem with pathogens acquiring resistance to antibiotics is the reason for the search for bactericidal substances against which microorganisms cannot become resistant. The aim of this study was to synthesize inorganic-organic nanohybrids and obtain materials with antimicrobial effects. Chitosan (CS) was deposited on nanocomposite carriers such as calcium oxide with titanium dioxide (CaO-TiO2), magnesium oxide with titanium dioxide (MgO-TiO2) and copper(II) oxide with titanium dioxide (CuO-TiO2). The efficiency of the process was examined at varying concentrations of chitosan and temperature. The parameters for nanohybrids synthesis were selected based on the highest amount of nano-chitosan deposited on the nanohybrids-for each carrier, the process conditions were as follows: chitosan solution at 5 g l-1and 20 °C. The materials were obtained using these parameters and were used for microbiological tests againstE. coliATCC 25922,S. aureusATCC 25923 andC. albicansATCC 10231. The growth inhibitory activity of the obtained materials was qualitatively defined. These results suggest that the synthesized nanohybrids and nanocomposites exhibit biostatic action. The material with the broadest effect was the CuO-TiO2-CS hybrid, which had biostatic properties against all tested strains at a minimal concentration of 1250μg ml-1. Further research is required to find eco-friendly, non-toxic, and more effective antimicrobials with a broad action to prevent the acquisition of resistance.
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Affiliation(s)
- Wiktoria Matyjasik
- Faculty of Chemical Engineering and Technology, Department of Chemical Technology and Environmental Analytics, Cracow University of Technology, Warszawska St. 24, 31-155, Cracow, Poland
| | - Olga Długosz
- Faculty of Chemical Engineering and Technology, Department of Chemical Technology and Environmental Analytics, Cracow University of Technology, Warszawska St. 24, 31-155, Cracow, Poland
| | - Kinga Lis
- Faculty of Chemical Engineering and Technology, Department of Chemical Technology and Environmental Analytics, Cracow University of Technology, Warszawska St. 24, 31-155, Cracow, Poland
| | - Marcin Banach
- Faculty of Chemical Engineering and Technology, Department of Chemical Technology and Environmental Analytics, Cracow University of Technology, Warszawska St. 24, 31-155, Cracow, Poland
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11
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Synthesis of ZnO nanoparticles mediated by natural products of Acanthus sennii leaf extract for electrochemical sensing and photocatalytic applications: a comparative study of volume ratios. CHEMICAL PAPERS 2022. [DOI: 10.1007/s11696-022-02301-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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12
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Abebe B, Tsegaye D, Ananda Murthy HC. Insight into nanocrystal synthesis: from precursor decomposition to combustion. RSC Adv 2022; 12:24374-24389. [PMID: 36128523 PMCID: PMC9425161 DOI: 10.1039/d2ra05222a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2022] [Accepted: 08/22/2022] [Indexed: 11/21/2022] Open
Abstract
Nanotechnology-based synthesis of nanoscale materials has appealed to the attention of scientists in the modern scientific community. In the bottom-up approach, atoms start to aggregate/agglomerate and form nuclei within the minimum and maximum supersaturation range. Once nuclei are generated above the critical-free energy/radius, the growth is initiated by obeying the LaMar model with a slight extra simple growth by diffusion advancement. The in situ real-time liquid phase analysis using STEM, AFM, and XAS techniques is used to control precursor decomposition to the nanocrystal formation process and should be a non-stoppable technique. Solution combustion synthesis (SCS) is a time-/energy-efficient self-sustained process that produces mass-/ion transport active porous materials. SCS also permits the synthesis of evenly distributed-doped and hybrid-nanomaterials, which are beneficial in tuning crucial properties of the materials. The growth and development of nanocrystals, dehydrating the sol in the presence of a surfactant or/and fuel results in combustion once it arrives at the ignition temperature. Besides, the kinetic and thermodynamics controlled architecture-directing agent-assisted SCS offers colloidal nanocrystal framework formation, which is currently highly applicable for energy devices. This short review provides insightful information that adds to the existing nanocrystal synthesis process and solution combustion synthesis and recommends future directions in the field. The LaMar model visualizes the process of nanocrystal formation. The solution combustion synthesis approach is a noble methodology resulting in highly stable and ordered porous nanomaterials.![]()
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Affiliation(s)
- Buzuayehu Abebe
- Adama Science and Technology University, Department of Applied Chemistry, 1888, Adama, Ethiopia
| | - Dereje Tsegaye
- Adama Science and Technology University, Department of Applied Chemistry, 1888, Adama, Ethiopia
| | - H. C. Ananda Murthy
- Adama Science and Technology University, Department of Applied Chemistry, 1888, Adama, Ethiopia
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Samuel Z, Ojemaye MO, Okoh OO, Okoh AI. Zinc oxide nanoparticles functionalized with chelating nitrogenous groups for the adsorption of methyl violet in aqueous solutions. RESULTS IN CHEMISTRY 2022. [DOI: 10.1016/j.rechem.2022.100579] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
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