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Kara I, Hafedh AIR, Alhusseinawi NKH, Kayış AF, Yalçınkaya Ö, Acar BC, Yuksekdag Z, Ozen Y, Gençyılmaz O, Ozkan EC, Oner H. Analyzing antimicrobial activity of ZnO/FTO, Sn-Cu-doped ZnO/FTO thin films: Production and characterizations. Microsc Res Tech 2024. [PMID: 39051772 DOI: 10.1002/jemt.24638] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2024] [Revised: 05/27/2024] [Accepted: 06/13/2024] [Indexed: 07/27/2024]
Abstract
In the developing field of nanotechnology, ZnO (zinc oxide) based semiconductor samples have emerged as the foremost choice due to their immense potential for advancing the development of cutting-edge nanodevices. Due to its excellent chemical stability, low cost, and non-toxicity to biological systems, it is also utilized in various investigations. In this study, the successive ionic layer adsorption and reaction (SILAR) method was used to generate FTO (fluorine-doped tin oxide)/ZnO, and tin (Sn)-copper (Cu)-doped ZnO thin films at varying concentrations on FTO substrates. After being stacked 40 times in varying concentrations on the FTO substrate, FTO/ZnO thin films and Sn-Cu-doped thin films were annealed at 300°C. Using Scanning Electron Microscopy (SEM) Energy Dispersive Spectroscopy-(EDS), the agar diffusion test, and the viability cell counting method, the minimum inhibitory concentration, structural properties, surface morphology, antibacterial properties, bacterial adhesion, and survival organism count of FTO/ZnO thin films and Sn-Cu-doped thin films were investigated. Both doped and FTO/ZnO films with varying Sn-Cu concentrations expanded harmonically on the FTO substrate, according to the SEM-EDS investigation. The doping concentration affected their morphological properties, causing changes depending on the doping level. Antibacterial activity was observed in the powder metals, but no antibacterial activity was found in the thin film form. The highest adhesion rate of bacterial organisms on the produced samples was observed when the FTO/ZnO/Sn-Cu doping rate was 1%. In addition, the lowest adhesion rate was observed when the FTO/ZnO/Sn-Cu additive ratio was 3%. RESEARCH HIGHLIGHTS: ZnO based semiconductors highlight significant potential in advancing nanodevice technology due to their chemical stability, cost-effectiveness, and biocompatibility. Employing the SILAR method, the study innovatively fabricates FTO/ZnO and Sn-Cu-doped ZnO thin films on FTO substrates, exploring a novel approach in semiconductor manufacturing. Post annealing at 300°C, the research examines the structural and surface morphological changes in the films, contributing to the understanding of semiconductor behavior under varying conditions. The study delves into the antibacterial properties of ZnO thin films, offering insights into the potential biomedical applications of these materials. SEM-EDS analysis reveals that doping concentrations crucially influence the morphological properties of ZnO thin films, shedding light on the optimization of semiconductor performance. Findings indicate a specific doping rate (1% Sn-Cu) enhances bacterial adhesion, while a 3% additive ratio minimizes it, suggesting implications for biomedical device engineering and antibacterial surface design.
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Affiliation(s)
- Ilker Kara
- Graduate School of Natural and Applied Sciences, Çankırı Karatekin University, Çankırı, Turkey
| | | | | | - Ahmet Furkan Kayış
- Faculty of Science, Department of Chemistry, Gazi University, Ankara, Turkey
| | - Özcan Yalçınkaya
- Faculty of Science, Department of Chemistry, Gazi University, Ankara, Turkey
| | - Berat Cinar Acar
- Faculty of Science, Department of Biology, Gazi University, Ankara, Turkey
| | - Zehranur Yuksekdag
- Faculty of Science, Department of Biology, Gazi University, Ankara, Turkey
| | - Yunus Ozen
- Science and Art Faculty, Department of Physics, Gazi University, Ankara, Turkey
| | - Olcay Gençyılmaz
- Graduate School of Natural and Applied Sciences, Çankırı Karatekin University, Çankırı, Turkey
| | - Engin Can Ozkan
- Faculty of Science, Department of Chemistry, Gazi University, Ankara, Turkey
| | - Hayrettin Oner
- Faculty of Science, Department of Chemistry, Gazi University, Ankara, Turkey
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Bai Q, Zhang Y, Cai R, Wu H, Fu H, Zhou X, Chai J, Teng X, Liu T. AMP-Coated TiO 2 Doped ZnO Nanomaterials Enhanced Antimicrobial Activity and Efficacy in Otitis Media Treatment by Elevating Hydroxyl Radical Levels. Int J Nanomedicine 2024; 19:2995-3007. [PMID: 38559446 PMCID: PMC10981428 DOI: 10.2147/ijn.s449888] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2023] [Accepted: 03/06/2024] [Indexed: 04/04/2024] Open
Abstract
Background In the past decades, antimicrobial resistance (AMR) has been a major threat to global public health. Long-term, chronic otitis media is becoming more challenging to treat, thus the novel antibiotic alternative agents are much needed. Methods ZnO@TiO2@AMP (ATZ NPs) were synthesized through a solvothermal method and subjected to comprehensive characterization. The in vitro and in vivo antibacterial effect and biocompatibility of ATZ NPs were evaluated. For the antibacterial mechanism exploration, we utilized the Electron Paramagnetic Resonance (EPR) Spectrometer to detect and analyze the hydroxyl radicals produced by ATZ NPs. Results ATZ NPs exhibited a spherical structure of 99.85 nm, the drug-loading rate for ZnO was 20.73%, and AMP within ATZ NPs was 41.86%. Notably, the Minimum Inhibitory Concentration (MIC) value of ATZ NPs against Staphylococcus aureus (S. aureus), methicillin-resistant Staphylococcus aureus (MRSA), and Streptococcus pneumoniae (S. pneumoniae) were 10 μg/mL, and Minimum Bactericidal Concentration (MBC) value of ATZ NPs against S. aureus, and S. pneumoniae were 50 μg/mL. In comparison to the model group, the treatment of otitis media with ATZ NPs significantly reduces inflammatory exudation in the middle ear cavity, with no observable damage to the tympanic membrane. Both in vivo and in vitro toxicity tests indicating the good biocompatibility of ATZ NPs. Moreover, EPR spectroscopy results highlighted the superior ability of ATZ NPs to generate hydroxyl radicals (·OH) compared to ZnO NPs. Conclusion ATZ NPs exhibited remarkable antibacterial properties both in vivo and in vitro. This innovative application of advanced ATZ NPs, bringing great promise for the treatment of otitis media.
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Affiliation(s)
- Qianyu Bai
- National Key Laboratory of Veterinary Public Health and Safety, College of Veterinary Medicine, China Agriculture University, Beijing, People’s Republic of China
| | - Yichi Zhang
- National Key Laboratory of Veterinary Public Health and Safety, College of Veterinary Medicine, China Agriculture University, Beijing, People’s Republic of China
| | - Runqiu Cai
- National Key Laboratory of Veterinary Public Health and Safety, College of Veterinary Medicine, China Agriculture University, Beijing, People’s Republic of China
| | - Haiyan Wu
- National Key Laboratory of Veterinary Public Health and Safety, College of Veterinary Medicine, China Agriculture University, Beijing, People’s Republic of China
| | - Huiqun Fu
- 101 Institute of the Ministry of Civil Affairs, Beijing, People’s Republic of China
| | - Xuemei Zhou
- 101 Institute of the Ministry of Civil Affairs, Beijing, People’s Republic of China
| | - Jie Chai
- Shandong Cancer Hospital and Institute, Shandong First Medical University and Shandong Academy of Medical Sciences, Jinan, People’s Republic of China
| | - Xuepeng Teng
- Shandong Cancer Hospital and Institute, Shandong First Medical University and Shandong Academy of Medical Sciences, Jinan, People’s Republic of China
| | - Tianlong Liu
- National Key Laboratory of Veterinary Public Health and Safety, College of Veterinary Medicine, China Agriculture University, Beijing, People’s Republic of China
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Metwally RA, Soliman SA, Abdalla H, Abdelhameed RE. Trichoderma cf. asperellum and plant-based titanium dioxide nanoparticles initiate morphological and biochemical modifications in Hordeum vulgare L. against Bipolaris sorokiniana. BMC PLANT BIOLOGY 2024; 24:118. [PMID: 38368386 PMCID: PMC10873961 DOI: 10.1186/s12870-024-04785-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/14/2022] [Accepted: 01/31/2024] [Indexed: 02/19/2024]
Abstract
BACKGROUND Spot blotch is a serious foliar disease of barley (Hordeum vulgare L.) plants caused by Bipolaris sorokiniana, which is a hemibiotrophic ascomycete that has a global impact on productivity. Some Trichoderma spp. is a promising candidate as a biocontrol agent as well as a plant growth stimulant. Also, the application of nanomaterials in agriculture limits the use of harmful agrochemicals and helps improve the yield of different crops. The current study was carried out to evaluate the effectiveness of Trichoderma. cf. asperellum and the biosynthesized titanium dioxide nanoparticles (TiO2 NPs) to manage the spot blotch disease of barley caused by B. sorokiniana and to assess the plant's innate defense response. RESULTS Aloe vera L. aqueous leaf extract was used to biosynthesize TiO2 NPs by reducing TiCl4 salt into TiO2 NPs and the biosynthesized NPs were detected using SEM and TEM. It was confirmed that the NPs are anatase-crystalline phases and exist in sizes ranging from 10 to 25 nm. The T. cf. asperellum fungus was detected using morphological traits and rDNA ITS analysis. This fungus showed strong antagonistic activity against B. sorokiniana (57.07%). Additionally, T. cf. asperellum cultures that were 5 days old demonstrated the best antagonistic activity against the pathogen in cell-free culture filtrate. Also, B. sorokiniana was unable to grow on PDA supplemented with 25 and 50 mg/L of TiO2 NPs, and the diameter of the inhibitory zone increased with increasing TiO2 NPs concentration. In an in vivo assay, barley plants treated with T. cf. asperellum or TiO2 NPs were used to evaluate their biocontrol efficiency against B. sorokiniana, in which T. cf. asperellum and TiO2 NPs enhanced the growth of the plant without displaying disease symptoms. Furthermore, the physiological and biochemical parameters of barley plants treated with T. cf. asperellum or TiO2 NPs in response to B. sorokiniana treatment were quantitively estimated. Hence, T. cf. asperellum and TiO2 NPs improve the plant's tolerance and reduce the growth inhibitory effect of B. sorokiniana. CONCLUSION Subsequently, T. cf. asperellum and TiO2 NPs were able to protect barley plants against B. sorokiniana via enhancement of chlorophyll content, improvement of plant health, and induction of the barley innate defense system. The present work emphasizes the major contribution of T. cf. asperellum and the biosynthesized TiO2 NPs to the management of spot blotch disease in barley plants, and ultimately to the enhancement of barley plant quality and productivity.
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Affiliation(s)
- Rabab A Metwally
- Botany and Microbiology Department, Faculty of Science, Zagazig University, Zagazig, 44519, Egypt.
| | - Shereen A Soliman
- Botany and Microbiology Department, Faculty of Science, Zagazig University, Zagazig, 44519, Egypt
| | - Hanan Abdalla
- Botany and Microbiology Department, Faculty of Science, Zagazig University, Zagazig, 44519, Egypt
| | - Reda E Abdelhameed
- Botany and Microbiology Department, Faculty of Science, Zagazig University, Zagazig, 44519, Egypt
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Zhang DD, Zhao JF, Tan LQ, Wu Q, Lv HX, Zhang YR, Zhang M. Effects of zinc oxide nanocomposites on microorganism growth and protection of physicochemical quality during maize storage. Int J Food Microbiol 2024; 411:110552. [PMID: 38159444 DOI: 10.1016/j.ijfoodmicro.2023.110552] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2023] [Revised: 12/13/2023] [Accepted: 12/21/2023] [Indexed: 01/03/2024]
Abstract
Maize moldy and spoilage due to microbial growth is a significant challenge in grain storage. This study aimed to evaluate the effectiveness of a zinc oxide nanocomposite, ZnO@mSiO2, prepared in our previous research, in inhibiting mold growth and preserving maize cell quality. The results demonstrated that ZnO@mSiO2 could effectively inhibit the growth of dominant microorganism, Aspergillus flavus, Talaromyces variabilis, Penicillium citrinum and Fusarium graminearum, in maize storage. Aspergillus flavus was selected as the model fungus, ZnO@mSiO2 effectively disrupted fungal hyphae structure, leading to reduced hyphal mass and inhibited spore germination. The inhibitory effect of ZnO@mSiO2 on mold growth was concentration-dependent. However, the ZnO@mSiO2 at an appropriate concentration (not exceeding 3.0 g/kg) preserved the integrity of maize cell membranes and enhancing the antioxidant activity within maize cells. The findings highlight the potential of ZnO@mSiO2 as an effective protectant to inhibit mold growth and preserve maize quality during storage.
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Affiliation(s)
- Dong-Dong Zhang
- Grain Storage and Security Engineering Research Center of Education Ministry, School of Food and Strategic Reserves, Henan University of Technology, Zhengzhou 450001, China
| | - Jin-Feng Zhao
- Grain Storage and Security Engineering Research Center of Education Ministry, School of Food and Strategic Reserves, Henan University of Technology, Zhengzhou 450001, China; Hangzhou Grain Storage Co., Ltd., Hangzhou 311100, China
| | - Li-Qin Tan
- Grain Storage and Security Engineering Research Center of Education Ministry, School of Food and Strategic Reserves, Henan University of Technology, Zhengzhou 450001, China
| | - Qiong Wu
- Grain Storage and Security Engineering Research Center of Education Ministry, School of Food and Strategic Reserves, Henan University of Technology, Zhengzhou 450001, China
| | - Hao-Xin Lv
- Grain Storage and Security Engineering Research Center of Education Ministry, School of Food and Strategic Reserves, Henan University of Technology, Zhengzhou 450001, China
| | - Yu-Rong Zhang
- Grain Storage and Security Engineering Research Center of Education Ministry, School of Food and Strategic Reserves, Henan University of Technology, Zhengzhou 450001, China.
| | - Min Zhang
- Grain Storage and Security Engineering Research Center of Education Ministry, School of Food and Strategic Reserves, Henan University of Technology, Zhengzhou 450001, China.
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Tahmasebi E, Mohammadi M, Yazdanian M, Alam M, Abbasi K, Hosseini HM, Tavakolizadeh M, Khayatan D, Hassani Z, Tebyaniyan H. Antimicrobial properties of green synthesized novel TiO 2 nanoparticles using Iranian propolis extracts. J Basic Microbiol 2023; 63:1030-1048. [PMID: 37442766 DOI: 10.1002/jobm.202300221] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2023] [Revised: 06/28/2023] [Accepted: 07/03/2023] [Indexed: 07/15/2023]
Abstract
The oral antimicrobial and cytotoxic properties of green synthesized novel titanium dioxide nanoparticles (TiO2 NPs) using Iranian propolis extracts were investigated on oral bacteria and fibroblast cells. In this study, propolis was sampled, and alcoholic extracts were prepared. The TiO2 NPs were biosynthesized using propolis extracts. The synthesized TiO2 NPs were characterized by scanning electron microscope (SEM), X-ray diffraction analysis, energy-dispersive X-ray (EDX), Fourier transform infrared spectroscopy (FTIR), dynamic light scattering, ultraviolet-visible (UV-Vis), transmission electron microscope, Brunauer-Emmett-Teller, and zeta potential. MTT (3-[4,5-dimethylthiazol-2-yl]-2,5 diphenyl tetrazolium bromide), minimal inhibitory concentration, minimum bactericidal concentration, minimum fungicidal concentration, biofilm formation, and degradation tests were studied to clarify the oral antimicrobial properties of green synthesized TiO2 NPs. According to the FTIR analysis, the propolis extract contained flavonoids and phenolic compounds in addition to TiO2 NPs. Additionally, UV-Vis revealed that intense bands had formed NPs. EDX spectra and SEM images revealed that the stabilizing agent was in perfect quasi-spherical shapes around 21 nm. An EDX spectrum was used to verify the presence of titanium and oxygen. There were no significant cytotoxicity effects. The antibacterial results showed that Pro1TiO2 (Khalkhal sample) had better effects than Pro2TiO2 (Gilan sample) and TiO2 NPs. The present study presents a new process for synthesizing TiO2 NPs from propolis extracts with less toxic effects and user-friendly, eco-friendly, and economical materials. Pro1TiO2 NPs may be considered the best candidate for clinical application.
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Affiliation(s)
- Elahe Tahmasebi
- Research Center for Prevention of Oral and Dental Diseases, Baqiyatallah University of Medical Sciences, Tehran, Iran
| | - Mehdi Mohammadi
- School of Dentistry, Tehran Medical Sciences, Islamic Azad University, Tehran, Iran
| | - Mohsen Yazdanian
- Research Center for Prevention of Oral and Dental Diseases, Baqiyatallah University of Medical Sciences, Tehran, Iran
| | - Mostafa Alam
- Department of Oral and Maxillofacial Surgery, School of Dentistry, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Kamyar Abbasi
- Department of Prosthodontics, School of Dentistry, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Hamideh Mahmoodzadeh Hosseini
- Applied Microbiology Research Center, Systems Biology and Poisonings Institute, Baqiyatallah University of Medical Sciences, Tehran, Iran
| | - Maryam Tavakolizadeh
- Department of Chemistry, Polymer Research Laboratory, Sharif University of Technology, Tehran, Iran
| | - Danial Khayatan
- GI Pharmacology Interest Group (GPIG), Universal Scientific Education and Research Network (USERN), Tehran, Iran
| | - Zahra Hassani
- Department of Chemistry, Isfahan University of Technology, Isfahan, Iran
| | - Hamid Tebyaniyan
- Department of Science and Research, Islimic Azade University, Tehran, Iran
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6
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Madkhali OA. A comprehensive review on potential applications of metallic nanoparticles as antifungal therapies to combat human fungal diseases. Saudi Pharm J 2023; 31:101733. [PMID: 37649674 PMCID: PMC10463261 DOI: 10.1016/j.jsps.2023.101733] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2023] [Accepted: 07/29/2023] [Indexed: 09/01/2023] Open
Abstract
Human pathogenic fungi are responsible for causing a range of infection types including mucosal, skin, and invasive infections. Life-threatening and invasive fungal infections (FIs) are responsible for mortality and morbidity, especially for individuals with compromised immune function. The number of currently available therapeutic agents against invasive FIs is limited compared to that against bacterial infections. In addition, the increased mortality and morbidity caused by FIs are linked to the limited number of available antifungal agents, antifungal resistance, and the increased toxicity of these agents. Currently available antifungal agents have several drawbacks in efficiency, efficacy, toxicity, activity spectrum, and selectivity. It has already been demonstrated with numerous metallic nanoparticles (MNPs) that these nanoparticles can serve as an effective and alternative solution as fungicidal agents. MNPs have great potential owing to their intrinsic antifungal properties and potential to deliver antifungal drugs. For instance, gold nanoparticles (AuNPs) have the capacity to disturb mitochondrial calcium homeostasis induced AuNP-mediated cell death in Candida albicans. In addition, both copper nanoparticles and copper oxide nanoparticles exerted significant suppressive properties against pathogenic fungi. Silver nanoparticles showed strong antifungal properties against numerous pathogenic fungi, such as Stachybotrys chartarum, Mortierella alpina, Chaetomium globosum, A. fumigatus, Cladosporium cladosporioides, Penicillium brevicompactum, Trichophyton rubrum, C. tropicalis, and C. albicans. Iron oxide nanoparticles showed potent antifungal activities against A. niger and P. chrysogenum. It has also been reported that zinc oxide nanoparticles can significantly inhibit fungal growth. These NPs have already exerted potent antifungal properties against a number of pathogenic fungal species including Candida, Aspergillus, Fusarium, and many others. Several strategies are currently used for the research and development of antifungal NPs including chemical modification of NPs and combination with the available drugs. This review has comprehensively presented the current and innovative antifungal approach using MNPs. Moreover, different types of MNPs, their physicochemical characteristics, and production techniques have been summarized in this review.
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Affiliation(s)
- Osama A. Madkhali
- Department of Pharmaceutics, College of Pharmacy, Jazan University, Jazan 45124, Saudi Arabia
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Lyagin I, Aslanli A, Domnin M, Stepanov N, Senko O, Maslova O, Efremenko E. Metal Nanomaterials and Hydrolytic Enzyme-Based Formulations for Improved Antifungal Activity. Int J Mol Sci 2023; 24:11359. [PMID: 37511117 PMCID: PMC10379199 DOI: 10.3390/ijms241411359] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2023] [Revised: 07/07/2023] [Accepted: 07/10/2023] [Indexed: 07/30/2023] Open
Abstract
Active research of metal-containing compounds and enzymes as effective antifungal agents is currently being conducted due to the growing antifungal resistance problem. Metals are attracting special attention due to the wide variety of ligands that can be used for them, including chemically synthesized and naturally obtained variants as a result of the so-called "green synthesis". The main mechanism of the antifungal action of metals is the triggering of the generation and accumulation of reactive oxygen species (ROS). Further action of ROS on various biomolecules is nonspecific. Various hydrolytic enzymes (glucanases and proteases), in turn, exhibit antifungal properties by affecting the structural elements of fungal cells (cell walls, membranes), fungal quorum sensing molecules, fungal own protective agents (mycotoxins and antibiotics), and proteins responsible for the adhesion and formation of stable, highly concentrated populations in the form of biofilms. A wide substrate range of enzymes allows the use of various mechanisms of their antifungal actions. In this review, we discuss the prospects of combining two different types of antifungal agents (metals and enzymes) against mycelial fungi and yeast cells. Special attention is paid to the possible influence of metals on the activity of the enzymes and the possible effects of proteins on the antifungal activity of metal-containing compounds.
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Affiliation(s)
- Ilya Lyagin
- Faculty of Chemistry, Lomonosov Moscow State University, Lenin Hills 1/3, 119991 Moscow, Russia
| | - Aysel Aslanli
- Faculty of Chemistry, Lomonosov Moscow State University, Lenin Hills 1/3, 119991 Moscow, Russia
| | - Maksim Domnin
- Faculty of Chemistry, Lomonosov Moscow State University, Lenin Hills 1/3, 119991 Moscow, Russia
| | - Nikolay Stepanov
- Faculty of Chemistry, Lomonosov Moscow State University, Lenin Hills 1/3, 119991 Moscow, Russia
| | - Olga Senko
- Faculty of Chemistry, Lomonosov Moscow State University, Lenin Hills 1/3, 119991 Moscow, Russia
| | - Olga Maslova
- Faculty of Chemistry, Lomonosov Moscow State University, Lenin Hills 1/3, 119991 Moscow, Russia
| | - Elena Efremenko
- Faculty of Chemistry, Lomonosov Moscow State University, Lenin Hills 1/3, 119991 Moscow, Russia
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Cruz-Luna AR, Vásquez-López A, Rojas-Chávez H, Valdés-Madrigal MA, Cruz-Martínez H, Medina DI. Engineered Metal Oxide Nanoparticles as Fungicides for Plant Disease Control. PLANTS (BASEL, SWITZERLAND) 2023; 12:2461. [PMID: 37447021 DOI: 10.3390/plants12132461] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/20/2023] [Revised: 06/24/2023] [Accepted: 06/25/2023] [Indexed: 07/15/2023]
Abstract
Metal oxide nanoparticles are considered to be good alternatives as fungicides for plant disease control. To date, numerous metal oxide nanoparticles have been produced and evaluated as promising antifungal agents. Consequently, a detailed and critical review on the use of mono-, bi-, and tri-metal oxide nanoparticles for controlling phytopathogenic fungi is presented. Among the studied metal oxide nanoparticles, mono-metal oxide nanoparticles-particularly ZnO nanoparticles, followed by CuO nanoparticles -are the most investigated for controlling phytopathogenic fungi. Limited studies have investigated the use of bi- and tri-metal oxide nanoparticles for controlling phytopathogenic fungi. Therefore, more studies on these nanoparticles are required. Most of the evaluations have been carried out under in vitro conditions. Thus, it is necessary to develop more detailed studies under in vivo conditions. Interestingly, biological synthesis of nanoparticles has been established as a good alternative to produce metal oxide nanoparticles for controlling phytopathogenic fungi. Although there have been great advances in the use of metal oxide nanoparticles as novel antifungal agents for sustainable agriculture, there are still areas that require further improvement.
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Affiliation(s)
- Aida R Cruz-Luna
- Instituto Politécnico Nacional, CIIDIR-OAXACA, Hornos Núm 1003, Col. Noche Buena, Santa Cruz Xoxocotlán, Oaxaca 71230, Mexico
| | - Alfonso Vásquez-López
- Instituto Politécnico Nacional, CIIDIR-OAXACA, Hornos Núm 1003, Col. Noche Buena, Santa Cruz Xoxocotlán, Oaxaca 71230, Mexico
| | - Hugo Rojas-Chávez
- Tecnológico Nacional de México, Instituto Tecnológico de Tláhuac II, Camino Real 625, Alcaldía Tláhuac, Ciudad de México 13550, Mexico
| | - Manuel A Valdés-Madrigal
- Tecnológico Nacional de México, Instituto Tecnológico Superior de Ciudad Hidalgo, Av. Ing. Carlos Rojas Gutiérrez 2120, Fracc. Valle de la Herradura, Ciudad Hidalgo 61100, Mexico
| | - Heriberto Cruz-Martínez
- Tecnológico Nacional de México, Instituto Tecnológico del Valle de Etla, Abasolo S/N, Barrio del Agua Buena, Santiago Suchilquitongo, Oaxaca 68230, Mexico
| | - Dora I Medina
- Tecnologico de Monterrey, Institute of Advanced Materials for Sustainable Manufacturing, Monterrey 64849, Mexico
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Du J, Wang X, Zhang Y, Pu G, Jin B, Qv W, Cao X. Can titanium dioxide nanoparticles modulate the effects of zinc oxide nanoparticles on aquatic leaf litter decomposition? CHEMOSPHERE 2023:139313. [PMID: 37354960 DOI: 10.1016/j.chemosphere.2023.139313] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/23/2023] [Revised: 06/21/2023] [Accepted: 06/22/2023] [Indexed: 06/26/2023]
Abstract
The potential impacts of metallic nanoparticles (NPs) at environmental levels on freshwater ecosystems cannot be ignored due to their frequent release. The most widely used metallic oxide, ZnO NPs and TiO2 NPs (100 ng L-1) were applied to explore their single and combined effects on leaf litter decomposition. Although ZnO NPs and TiO2 NPs alone or in combination increased 22.68%-41.17% of the leaf decomposition rate, they performed different toxic mechanisms in ecological processes. The microbial mass and enzyme activities significantly increased after acute exposure, but significantly decreased after chronic exposure to ZnO NPs. The activity of BG was the most sensitive factor that was decreased by 66.22%, 56.97%, and 39.39% after 21-day exposure to ZnO NPs, TiO2 NPs, and in combination, respectively. In addition, the analysis of Fourier transform infrared spectroscopy suggested a novel perspective on understanding the promoting mechanism. The promotion effect of ZnO NPs relied on the enhanced decomposition of refractory organics and easily degradable substances due to the contribution of Anguillospora, Pyrenochaetopsis, and Bipolaris. The single exposure to TiO2 NPs and combined exposure with ZnO NPs promoted microbial mass and hydrolase activities, with the stimulating effect attributed to the enhanced decomposition of soluble substances. Therefore, the results highlight the importance of chemical analysis of decomposed leaves to evaluate the potential threat of metallic NPs to the function of freshwater ecosystems.
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Affiliation(s)
- Jingjing Du
- School of Materials and Chemical Engineering, Zhengzhou University of Light Industry, Zhengzhou, China; Collaborative Innovation Center of Environmental Pollution Control and Ecological Restoration, Henan Province, China.
| | - Xilin Wang
- School of Materials and Chemical Engineering, Zhengzhou University of Light Industry, Zhengzhou, China
| | - Yuyan Zhang
- School of Materials and Chemical Engineering, Zhengzhou University of Light Industry, Zhengzhou, China
| | - Gaozhong Pu
- Guangxi Key Laboratory of Plant Conservation and Restoration Ecology in Karst Terrain, Guangxi Institute of Botany, Guangxi Zhuang Autonomous Region and Chinese Academy of Sciences, Guilin, China
| | - Baodan Jin
- School of Materials and Chemical Engineering, Zhengzhou University of Light Industry, Zhengzhou, China; Collaborative Innovation Center of Environmental Pollution Control and Ecological Restoration, Henan Province, China
| | - Wenrui Qv
- School of Materials and Chemical Engineering, Zhengzhou University of Light Industry, Zhengzhou, China
| | - Xia Cao
- School of Materials and Chemical Engineering, Zhengzhou University of Light Industry, Zhengzhou, China; Collaborative Innovation Center of Environmental Pollution Control and Ecological Restoration, Henan Province, China.
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Nurdin M, Sari IDW, Mardhatillah M, Herdianto N, Wibowo D, Maulidiyah M, Mappasomba M, Ansharullah A, Bijang C. Highly Ecofriendly Inorganic Pesticide Based on TiO 2 Incorporated with Nano-Carbon Composites for Phytophthora palmivora Fungus Disinfection. Indian J Microbiol 2023; 63:216-221. [PMID: 37325018 PMCID: PMC10267045 DOI: 10.1007/s12088-023-01076-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2022] [Accepted: 03/09/2023] [Indexed: 06/17/2023] Open
Abstract
Crop destruction organisms are an essential factor hindering cocoa plants' production yield. It is the biggest problem for cocoa farmers to resolve and reduce the impact of the P. palmivora fungus on cocoa pods. Herein, this study presents the optimization of inorganic pesticides based on nano-carbon self-doped TiO2 (C/TiO2) nanocomposites capable of disinfecting broad-spectrum P. palmivora microorganisms for the practical application of photodisinfection technology. C/TiO2 nanocomposite-based inorganic pesticide has been prepared by sol-gel method to produce nanospray and planted in media containing P. palmivora fungus. To identify the various composition of the C/TiO2 nanospray, they were evaluated by FTIR spectroscopy to observe the functional groups of the nano-carbon and TiO2, which clearly contained -OH (3446-3448 cm-1), C≡C (2366-2370 cm-1), C=O (1797-1799 cm-1), C-H (1425 cm-1), C-O (1163-1203 cm-1), C-H (875-877 cm-1), and Ti-O (875-877 cm-1) groups. Some researchers have reported that nano-carbon significantly changes the band gap energy of TiO2 under visible light and can also be active under dark conditions. This statement is relevant to our experimental results that 0.3% C/TiO2 nanocomposites can inhibit the fungus P. palmivora with a percentage inhibition value of 72.7%. However, the high-performance efficiency proved strong when subjected to visible light irradiation with an inhibition value of 98.6%. Our results indicate that C/TiO2 nanocomposites have great potential in agricultural plant pathogen disinfection. Supplementary Information The online version contains supplementary material available at 10.1007/s12088-023-01076-7.
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Affiliation(s)
- Muhammad Nurdin
- Department of Chemistry, Faculty of Mathematics and Natural Sciences, Universitas Halu Oleo, Kendari, Southeast Sulawesi 93231 Indonesia
| | - Icheu Dini Widia Sari
- Department of Chemistry, Faculty of Mathematics and Natural Sciences, Universitas Halu Oleo, Kendari, Southeast Sulawesi 93231 Indonesia
| | - Mardhatillah Mardhatillah
- Department of Chemistry, Faculty of Mathematics and Natural Sciences, Universitas Halu Oleo, Kendari, Southeast Sulawesi 93231 Indonesia
| | - N. Herdianto
- Department of Chemistry, Faculty of Mathematics and Natural Sciences, Universitas Halu Oleo, Kendari, Southeast Sulawesi 93231 Indonesia
| | - Dwiprayogo Wibowo
- Present Address: Department of Environmental Engineering, Faculty of Engineering, Universitas Muhammadiyah Kendari, Kendari, Southeast Sulawesi 93117 Indonesia
| | - Maulidiyah Maulidiyah
- Department of Chemistry, Faculty of Mathematics and Natural Sciences, Universitas Halu Oleo, Kendari, Southeast Sulawesi 93231 Indonesia
| | - Musadar Mappasomba
- Faculty of Agricultural Sciences, Universitas Halu Oleo, Kendari, Southeast Sulawesi 93231 Indonesia
| | - Ansharullah Ansharullah
- Faculty of Agricultural Sciences, Universitas Halu Oleo, Kendari, Southeast Sulawesi 93231 Indonesia
| | - Catherina Bijang
- Department of Chemistry, Faculty of Mathematics and Natural Sciences, Universitas Pattimura, Ambon, Maluku 97233 Indonesia
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11
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Vallières C, Golinelli-Cohen MP, Guittet O, Lepoivre M, Huang ME, Vernis L. Redox-Based Strategies against Infections by Eukaryotic Pathogens. Genes (Basel) 2023; 14:genes14040778. [PMID: 37107536 PMCID: PMC10138290 DOI: 10.3390/genes14040778] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2023] [Revised: 03/13/2023] [Accepted: 03/21/2023] [Indexed: 04/29/2023] Open
Abstract
Redox homeostasis is an equilibrium between reducing and oxidizing reactions within cells. It is an essential, dynamic process, which allows proper cellular reactions and regulates biological responses. Unbalanced redox homeostasis is the hallmark of many diseases, including cancer or inflammatory responses, and can eventually lead to cell death. Specifically, disrupting redox balance, essentially by increasing pro-oxidative molecules and favouring hyperoxidation, is a smart strategy to eliminate cells and has been used for cancer treatment, for example. Selectivity between cancer and normal cells thus appears crucial to avoid toxicity as much as possible. Redox-based approaches are also employed in the case of infectious diseases to tackle the pathogens specifically, with limited impacts on host cells. In this review, we focus on recent advances in redox-based strategies to fight eukaryotic pathogens, especially fungi and eukaryotic parasites. We report molecules recently described for causing or being associated with compromising redox homeostasis in pathogens and discuss therapeutic possibilities.
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Affiliation(s)
- Cindy Vallières
- Institut de Chimie des Substances Naturelles, CNRS UPR 2301, Université Paris-Saclay, 91198 Gif-sur-Yvette, France
| | - Marie-Pierre Golinelli-Cohen
- Institut de Chimie des Substances Naturelles, CNRS UPR 2301, Université Paris-Saclay, 91198 Gif-sur-Yvette, France
| | - Olivier Guittet
- Institut de Chimie des Substances Naturelles, CNRS UPR 2301, Université Paris-Saclay, 91198 Gif-sur-Yvette, France
| | - Michel Lepoivre
- Institut de Chimie des Substances Naturelles, CNRS UPR 2301, Université Paris-Saclay, 91198 Gif-sur-Yvette, France
| | - Meng-Er Huang
- Institut de Chimie des Substances Naturelles, CNRS UPR 2301, Université Paris-Saclay, 91198 Gif-sur-Yvette, France
| | - Laurence Vernis
- Institut de Chimie des Substances Naturelles, CNRS UPR 2301, Université Paris-Saclay, 91198 Gif-sur-Yvette, France
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12
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Ahmad W, Jaiswal KK, Bajetha A, Naresh N, Verma R, Banerjee I. Microwave-irradiated bio-fabrication of TiO 2 nanoparticles stabilized by phytoconstituents from Phyllanthus emblica seeds and its antibacterial activities. INORG NANO-MET CHEM 2023. [DOI: 10.1080/24701556.2023.2184385] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/06/2023]
Affiliation(s)
- Waseem Ahmad
- Department of Chemistry, Graphic Era (Deemed to Be University), Dehradun, Uttarakhand, India
| | - Krishna Kumar Jaiswal
- Bioprocess Engineering Laboratory, Department of Green Energy Technology, Pondicherry University, Puducherry, India
| | - Asha Bajetha
- Department of Chemistry, Uttaranchal University, Dehradun, Uttarakhand, India
| | - Nibagani Naresh
- Department of Physics, Pondicherry University, Puducherry, India
| | - Ravikant Verma
- Department of Ecology and Environmental Sciences, Pondicherry University, Puducherry, India
| | - Ishita Banerjee
- Department of Biochemistry & Cellular and Molecular Biology, The University of Tennessee, Knoxville, TN, USA
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13
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Wu LP, Wang WG, Mo D, Duan JL, Li XJ. Effect of Au position on the photoelectrochemical and photocatalytic activity of TiO 2 nanotubes under UV irradiation. INORG NANO-MET CHEM 2023. [DOI: 10.1080/24701556.2023.2166067] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Affiliation(s)
- Liang-Peng Wu
- Advanced Energy Science and Technology Guangdong Laboratory, Huizhou, P.R. China
- Chinese Academy of Sciences, Guangzhou Institute of Energy Conversion, Guangzhou, P.R. China
| | - Wen-Guang Wang
- School of Materials and Energy, Guangdong University of Technology, Guangzhou, P.R. China
| | - Dan Mo
- Advanced Energy Science and Technology Guangdong Laboratory, Huizhou, P.R. China
| | - Jing-Lai Duan
- Advanced Energy Science and Technology Guangdong Laboratory, Huizhou, P.R. China
| | - Xin-Jun Li
- Chinese Academy of Sciences, Guangzhou Institute of Energy Conversion, Guangzhou, P.R. China
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14
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Biomimetic Nanopillar Silicon Surfaces Rupture Fungal Spores. Int J Mol Sci 2023; 24:ijms24021298. [PMID: 36674814 PMCID: PMC9864238 DOI: 10.3390/ijms24021298] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2022] [Revised: 12/17/2022] [Accepted: 12/28/2022] [Indexed: 01/11/2023] Open
Abstract
The mechano-bactericidal action of nanostructured surfaces is well-documented; however, synthetic nanostructured surfaces have not yet been explored for their antifungal properties toward filamentous fungal species. In this study, we developed a biomimetic nanostructured surface inspired by dragonfly wings. A high-aspect-ratio nanopillar topography was created on silicon (nano-Si) surfaces using inductively coupled plasma reactive ion etching (ICP RIE). To mimic the superhydrophobic nature of insect wings, the nano-Si was further functionalised with trichloro(1H,1H,2H,2H-perfluorooctyl)silane (PFTS). The viability of Aspergillus brasiliensis spores, in contact with either hydrophobic or hydrophilic nano-Si surfaces, was determined using a combination of standard microbiological assays, confocal laser scanning microscopy (CLSM), and focused ion beam scanning electron microscopy (FIB-SEM). Results indicated the breakdown of the fungal spore membrane upon contact with the hydrophilic nano-Si surfaces. By contrast, hydrophobised nano-Si surfaces prevented the initial attachment of the fungal conidia. Hydrophilic nano-Si surfaces exhibited both antifungal and fungicidal properties toward attached A. brasisiensis spores via a 4-fold reduction of attached spores and approximately 9-fold reduction of viable conidia from initial solution after 24 h compared to their planar Si counterparts. Thus, we reveal, for the first time, the physical rupturing of attaching fungal spores by biomimetic hydrophilic nanostructured surfaces.
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Long-Term Antimicrobial Performance of Textiles Coated with ZnO and TiO 2 Nanoparticles in a Tropical Climate. J Funct Biomater 2022; 13:jfb13040233. [PMID: 36412874 PMCID: PMC9680289 DOI: 10.3390/jfb13040233] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2022] [Revised: 11/04/2022] [Accepted: 11/06/2022] [Indexed: 11/11/2022] Open
Abstract
This paper reports the results of the large-scale field testing of composite materials with antibacterial properties in a tropical climate. The composite materials, based on a cotton fabric with a coating of metal oxide nanoparticles (TiO2 and/or ZnO), were produced using high-power ultrasonic treatment. The antibacterial properties of the materials were studied in laboratory tests on solid and liquid nutrient media using bacteria of different taxonomic groups (Escherichia coli, Chromobacterium violaceum, Pseudomonas chlororaphis). On solid media, the coatings were able to achieve a >50% decrease in the number of bacteria. The field tests were carried out in a tropical climate, at the Climate test station “Hoa Lac” (Hanoi city, Vietnam). The composite materials demonstrated long-term antibacterial activity in the tropical climate: the number of microorganisms remained within the range of 1−3% in comparison with the control sample for the duration of the experiment (3 months). Ten of the microorganisms that most frequently occurred on the surface of the coated textiles were identified. The bacteria were harmless, while the fungi were pathogenic and contributed to fabric deterioration. Tensile strength deterioration was also studied, with the fabrics coated with metal oxides demonstrating a better preservation of their mechanical characteristics over time, (there was a 42% tensile strength decrease for the reference non-coated sample and a 21% decrease for the sample with a ZnO + CTAB coating).
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16
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Gurunathan S, Lee AR, Kim JH. Antifungal Effect of Nanoparticles against COVID-19 Linked Black Fungus: A Perspective on Biomedical Applications. Int J Mol Sci 2022; 23:12526. [PMID: 36293381 PMCID: PMC9604067 DOI: 10.3390/ijms232012526] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2022] [Revised: 10/16/2022] [Accepted: 10/18/2022] [Indexed: 08/21/2023] Open
Abstract
Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) is a highly transmissible and pathogenic coronavirus that has caused a 'coronavirus disease 2019' (COVID-19) pandemic in multiple waves, which threatens human health and public safety. During this pandemic, some patients with COVID-19 acquired secondary infections, such as mucormycosis, also known as black fungus disease. Mucormycosis is a serious, acute, and deadly fungal infection caused by Mucorales-related fungal species, and it spreads rapidly. Hence, prompt diagnosis and treatment are necessary to avoid high mortality and morbidity rates. Major risk factors for this disease include uncontrolled diabetes mellitus and immunosuppression that can also facilitate increases in mucormycosis infections. The extensive use of steroids to prevent the worsening of COVID-19 can lead to black fungus infection. Generally, antifungal agents dedicated to medical applications must be biocompatible, non-toxic, easily soluble, efficient, and hypoallergenic. They should also provide long-term protection against fungal growth. COVID-19-related black fungus infection causes a severe increase in fatalities. Therefore, there is a strong need for the development of novel and efficient antimicrobial agents. Recently, nanoparticle-containing products available in the market have been used as antimicrobial agents to prevent bacterial growth, but little is known about their efficacy with respect to preventing fungal growth, especially black fungus. The present review focuses on the effect of various types of metal nanoparticles, specifically those containing silver, zinc oxide, gold, copper, titanium, magnetic, iron, and carbon, on the growth of various types of fungi. We particularly focused on how these nanoparticles can impact the growth of black fungus. We also discussed black fungus co-infection in the context of the global COVID-19 outbreak, and management and guidelines to help control COVID-19-associated black fungus infection. Finally, this review aimed to elucidate the relationship between COVID-19 and mucormycosis.
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Affiliation(s)
- Sangiliyandi Gurunathan
- Department of Stem Cell and Regenerative Biotechnology, Konkuk University, Seoul 05029, Korea
| | - Ah Reum Lee
- CHA Advanced Research Institute, CHA Medical Center, 335 Pangyo-ro, Bundang-gu, Seongnam-si 13488, Korea
| | - Jin Hoi Kim
- Department of Stem Cell and Regenerative Biotechnology, Konkuk University, Seoul 05029, Korea
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17
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Islam F, Shohag S, Uddin MJ, Islam MR, Nafady MH, Akter A, Mitra S, Roy A, Emran TB, Cavalu S. Exploring the Journey of Zinc Oxide Nanoparticles (ZnO-NPs) toward Biomedical Applications. MATERIALS (BASEL, SWITZERLAND) 2022; 15:2160. [PMID: 35329610 PMCID: PMC8951444 DOI: 10.3390/ma15062160] [Citation(s) in RCA: 75] [Impact Index Per Article: 37.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/02/2022] [Revised: 02/28/2022] [Accepted: 03/03/2022] [Indexed: 12/24/2022]
Abstract
The field of nanotechnology is concerned with the creation and application of materials having a nanoscale spatial dimensioning. Having a considerable surface area to volume ratio, nanoparticles have particularly unique properties. Several chemical and physical strategies have been used to prepare zinc oxide nanoparticles (ZnO-NPs). Still, biological methods using green or natural routes in various underlying substances (e.g., plant extracts, enzymes, and microorganisms) can be more environmentally friendly and cost-effective than chemical and/or physical methods in the long run. ZnO-NPs are now being studied as antibacterial agents in nanoscale and microscale formulations. The purpose of this study is to analyze the prevalent traditional method of generating ZnO-NPs, as well as its harmful side effects, and how it might be addressed utilizing an eco-friendly green approach. The study's primary focus is on the potential biomedical applications of green synthesized ZnO-NPs. Biocompatibility and biomedical qualities have been improved in green-synthesized ZnO-NPs over their traditionally produced counterparts, making them excellent antibacterial and cancer-fighting drugs. Additionally, these ZnO-NPs are beneficial when combined with the healing processes of wounds and biosensing components to trace small portions of biomarkers linked with various disorders. It has also been discovered that ZnO-NPs can distribute and sense drugs. Green-synthesized ZnO-NPs are compared to traditionally synthesized ones in this review, which shows that they have outstanding potential as a potent biological agent, as well as related hazardous properties.
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Affiliation(s)
- Fahadul Islam
- Department of Pharmacy, Faculty of Allied Health Sciences, Daffodil International University, Dhaka 1207, Bangladesh; (F.I.); (M.R.I.); (A.A.)
| | - Sheikh Shohag
- Department of Biochemistry and Molecular Biology, Faculty of Life Science, Bangabandhu Sheikh Mujibur Rahman Science and Technology University, Gopalganj 8100, Bangladesh; (S.S.); (M.J.U.)
| | - Md. Jalal Uddin
- Department of Biochemistry and Molecular Biology, Faculty of Life Science, Bangabandhu Sheikh Mujibur Rahman Science and Technology University, Gopalganj 8100, Bangladesh; (S.S.); (M.J.U.)
| | - Md. Rezaul Islam
- Department of Pharmacy, Faculty of Allied Health Sciences, Daffodil International University, Dhaka 1207, Bangladesh; (F.I.); (M.R.I.); (A.A.)
| | - Mohamed H. Nafady
- Faculty of Applied Health Science Technology, Misr University for Science and Technology, Giza 12568, Egypt;
| | - Aklima Akter
- Department of Pharmacy, Faculty of Allied Health Sciences, Daffodil International University, Dhaka 1207, Bangladesh; (F.I.); (M.R.I.); (A.A.)
| | - Saikat Mitra
- Department of Pharmacy, Faculty of Pharmacy, University of Dhaka, Dhaka 1000, Bangladesh;
| | - Arpita Roy
- Department of Biotechnology, School of Engineering & Technology, Sharda University, Greater Noida 201310, India;
| | - Talha Bin Emran
- Department of Pharmacy, Faculty of Allied Health Sciences, Daffodil International University, Dhaka 1207, Bangladesh; (F.I.); (M.R.I.); (A.A.)
- Department of Pharmacy, BGC Trust University Bangladesh, Chittagong 4381, Bangladesh
| | - Simona Cavalu
- Faculty of Medicine and Pharmacy, University of Oradea, 400087 Oradea, Romania
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Abstract
ZnO and TiO2 are semiconductor nanomaterials that are widely used in photocatalysis. However, the relatively high recombination rate and low quantum yield of photogenerated electron–hole pairs limit their practical applications. In this study, a series of TiO2/ZnO/diatomite composites with various compositions were successfully prepared via a two-step precipitation method. They exhibited stronger UV–visible absorption properties and substantially lower fluorescence intensities than those of ZnO and ZnO/diatomite, which was mainly due to the low recombination rate of the photogenerated electron–hole pairs in the composite system. The reaction intermediates of methylene blue were detected by liquid chromatography–mass spectrometry, and the degradation process was determined. The best composite catalyst was used for the degradation of gaseous methylbenzene and gaseous acetone. The gaseous acetone degradation product was determined to be acetaldehyde via gas chromatography–mass spectrometry. The results show that the composite catalyst exhibited a good photocatalytic degradation of both liquid pollutants and harmful volatile gases. When applied to the hydrogen and oxygen evolution reactions, the composite catalyst retained a good photoresponsivity and electrolytic efficiency.
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Hasaballah AI, El-Naggar HA, Abdelbary S, Bashar MAE, Selim TA. Eco-friendly Synthesis of Zinc Oxide Nanoparticles by Marine Sponge, Spongia officinalis: Antimicrobial and Insecticidal Activities Against the Mosquito Vectors, Culex pipiens and Anopheles pharoensis. BIONANOSCIENCE 2021. [DOI: 10.1007/s12668-021-00926-2] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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