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Srisuwan Y, Srihanam P, Rattanasuk S, Baimark Y. Preparation of Poly(L-lactide)- b-poly(ethylene glycol)- b-poly(L-lactide)/Zinc Oxide Nanocomposite Bioplastics for Potential Use as Flexible and Antibacterial Food Packaging. Polymers (Basel) 2024; 16:1660. [PMID: 38932010 PMCID: PMC11207334 DOI: 10.3390/polym16121660] [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: 05/22/2024] [Revised: 06/07/2024] [Accepted: 06/10/2024] [Indexed: 06/28/2024] Open
Abstract
High-molecular-weight poly(L-lactide)-b-poly(ethylene glycol)-b-poly(L-lactide) (PLLA-PEG-PLLA) is a flexible and biodegradable bioplastic that has promising potential in flexible food packaging but it has no antibacterial ability. Thus, in this work, the effect of zinc oxide nanoparticles (nano-ZnOs) which have antimicrobial activity on various properties of PLLA-PEG-PLLA was determined. The addition of nano-ZnOs enhanced the crystallization, tensile, UV-barrier, and antibacterial properties of PLLA-PEG-PLLA. However, the crystallization and tensile properties of nanocomposite films decreased again as the nano-ZnO increased beyond 2 wt%. The nano-ZnO was well distributed in the PLLA-PEG-PLLA matrix when the nano-ZnO content did not exceed 2 wt% and exhibited some nano-ZnO agglomerates when the nano-ZnO content was higher than 2 wt%. The thermal stability and moisture uptake of the PLLA-PEG-PLLA matrix decreased and the film's opacity increased as the nano-ZnO content increased. The PLLA-PEG-PLLA/ZnO nanocomposite films showed good antibacterial activity against bacteria such as Escherichia coli and Staphylococcus aureus. It can be concluded that nano-ZnOs can be used as a multi-functional filler of the flexible PLLA-PEG-PLLA. As a result, the addition of nano-ZnOs as a nucleating, reinforcing, UV-screening, and antibacterial agent in the flexible PLLA-PEG-PLLA matrix may provide protection for both the food and the packaging during transportation and storage.
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Affiliation(s)
- Yaowalak Srisuwan
- Biodegradable Polymers Research Unit, Department of Chemistry and Centre of Excellence for Innovation in Chemistry, Faculty of Science, Mahasarakham University, Kantarawichai 44150, Mahasarakham, Thailand; (Y.S.); (P.S.)
| | - Prasong Srihanam
- Biodegradable Polymers Research Unit, Department of Chemistry and Centre of Excellence for Innovation in Chemistry, Faculty of Science, Mahasarakham University, Kantarawichai 44150, Mahasarakham, Thailand; (Y.S.); (P.S.)
| | - Surachai Rattanasuk
- Major of Biology, Department of Science and Technology, Faculty of Liberal Arts and Science, Roi-Et Rajabhat University, Selaphum 45120, Roi-Et, Thailand;
| | - Yodthong Baimark
- Biodegradable Polymers Research Unit, Department of Chemistry and Centre of Excellence for Innovation in Chemistry, Faculty of Science, Mahasarakham University, Kantarawichai 44150, Mahasarakham, Thailand; (Y.S.); (P.S.)
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2
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Thakur N, Thakur N, Kumar A, Thakur VK, Kalia S, Arya V, Kumar A, Kumar S, Kyzas GZ. A critical review on the recent trends of photocatalytic, antibacterial, antioxidant and nanohybrid applications of anatase and rutile TiO2 nanoparticles. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 914:169815. [PMID: 38184262 DOI: 10.1016/j.scitotenv.2023.169815] [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: 11/03/2023] [Revised: 12/22/2023] [Accepted: 12/29/2023] [Indexed: 01/08/2024]
Abstract
Titanium dioxide nanoparticles (TiO2 NPs) have become a focal point of research due to their widespread daily use and diverse synthesis methods, including physical, chemical, and environmentally sustainable approaches. These nanoparticles possess unique attributes such as size, shape, and surface functionality, making them particularly intriguing for applications in the biomedical field. The continuous exploration of TiO2 NPs is driven by the quest to enhance their multifunctionality, aiming to create next-generation products with superior performance. Recent research efforts have specifically focused on understanding the anatase and rutile phases of TiO2 NPs and evaluating their potential in various domains, including photocatalytic processes, antibacterial properties, antioxidant effects, and nanohybrid applications. The hypothesis guiding this research is that by exploring different synthesis methods, particularly chemical and environmentally friendly approaches, and incorporating doping and co-doping techniques, the properties of TiO2 NPs can be significantly improved for diverse applications. The study employs a comprehensive approach, investigating the effects of nanoparticle size, shape, dose, and exposure time on performance. The synthesis methods considered encompass both conventional chemical processes and environmentally friendly alternatives, with a focus on how doping and co-doping can enhance the properties of TiO2 NPs. The research unveils valuable insights into the distinct phases of TiO2 NPs and their potential across various applications. It sheds light on the improved properties achieved through doping and co-doping, showcasing advancements in photocatalytic processes, antibacterial efficacy, antioxidant capabilities, and nanohybrid applications. The study concludes by emphasizing regulatory aspects and offering suggestions for product enhancement. It provides recommendations for the reliable application of TiO2 NPs, addressing a comprehensive spectrum of critical aspects in TiO2 NP research and application. Overall, this research contributes to the evolving landscape of TiO2 NP utilization, offering valuable insights for the development of innovative and high-performance products.
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Affiliation(s)
- Naveen Thakur
- Department of Physics, Career Point University, Hamirpur, Himachal Pradesh 176041, India.
| | - Nikesh Thakur
- Department of Physics, Career Point University, Hamirpur, Himachal Pradesh 176041, India
| | - Anil Kumar
- School of chemical and metallurgical engineering, University of the Witwatersrand, Johannesburg, South Africa
| | - Vijay Kumar Thakur
- Biorefining and Advanced Materials Research Center, SRUC, Kings Buildings West Mains Road, Edinburgh EH9 3JG, United Kingdom
| | - Susheel Kalia
- Department of Chemistry, ACC Wing (Academic Block) Indian Military Academy, Dehradun, Uttarakhand 248007, India
| | - Vedpriya Arya
- Patanjali Herbal Research Department, Patanjali Research Institute, Haridwar, Uttarakhand 249405, India
| | - Ashwani Kumar
- Patanjali Herbal Research Department, Patanjali Research Institute, Haridwar, Uttarakhand 249405, India
| | - Sunil Kumar
- Department of Animal Sciences, Central University of Himachal Pradesh, Kangra, Shahpur, Himachal Pradesh 176206, India
| | - George Z Kyzas
- Hephaestus Laboratory, Department of Chemistry, School of Science, International Hellenic University, Kavala, Greece.
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Khattami Kermanshahi P, Akhbari K. The antibacterial activity of three zeolitic-imidazolate frameworks and zinc oxide nanoparticles derived from them. RSC Adv 2024; 14:5601-5608. [PMID: 38352679 PMCID: PMC10862664 DOI: 10.1039/d4ra00447g] [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: 01/17/2024] [Accepted: 01/27/2024] [Indexed: 02/16/2024] Open
Abstract
Zinc has been widely studied for its antibacterial properties due to its low toxicity, availability, and low cost. This research focused on analysing the antibacterial effects of three types of MOFs (metal-organic frameworks) with zinc as the central metal: ZIF-4, ZIF-7, and ZIF-8. The study found that ZIF-8 had the strongest antibacterial effect, while ZIF-7 had the weakest among them. These findings were consistent with the results of the ICP (inductively coupled plasma) analysis, which measured the amount of zinc released. Additionally, the antibacterial effect of ZIF-8 was found to be higher than that of zinc oxide species obtained from calcination of the compounds. Among the zinc oxide samples, ZnO nanoparticles which derived from ZIF-4 showed the highest antibacterial activity.
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Affiliation(s)
- Pouya Khattami Kermanshahi
- School of Chemistry, College of Science, University of Tehran P.O. Box 14155-6455 Tehran Iran +98 21 66495291 +98 21 61113734
| | - Kamran Akhbari
- School of Chemistry, College of Science, University of Tehran P.O. Box 14155-6455 Tehran Iran +98 21 66495291 +98 21 61113734
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Al-Gaashani R, Pasha M, Jabbar KA, Shetty AR, Baqiah H, Mansour S, Kochkodan V, Lawler J. Antimicrobial activity of ZnO-Ag-MWCNTs nanocomposites prepared by a simple impregnation-calcination method. Sci Rep 2023; 13:21418. [PMID: 38049503 PMCID: PMC10695929 DOI: 10.1038/s41598-023-48831-w] [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: 06/08/2023] [Accepted: 11/30/2023] [Indexed: 12/06/2023] Open
Abstract
Zinc oxide (ZnO) nanorods and ZnO nanostructures composited with silver (Ag) and multi-walled carbon nanotubes (MWCNTs) have been synthesized by a simple impregnation-calcination method and have been shown to be suitable for use as antimicrobial agents. The preparation method used for composite materials is very simple, time-effective, and can be used for large-scale production. Several analytical techniques, including X-ray diffraction (XRD), scanning electron spectroscopy (SEM), energy dispersive X-ray spectroscopy (EDS), transmission electron microscopy (TEM) and Fourier transmission infrared spectroscopy (FTIR), have been used to characterize the prepared ZnO-Ag-MWCNT composite materials. The effects on structural, morphological, and antimicrobial properties of (ZnO)100-x (Ag)x nanocomposites at various weight ratios (x = 0, 5, 10, 30, and 50 wt%) have been investigated. The antimicrobial properties of ZnO composited with Ag nanoparticles and MWCNTs towards both gram-positive and gram-negative bacteria species were studied. The effect of raw MWCNTs and MWCNTs composited with ZnO and Ag on the cell morphology and chemical composition of Staphylococcus aureus (S. aureus) and Escherichia coli (E. coli) was studied by SEM and EDS, respectively. It was found that composite materials made of ZnO-Ag-MWCNTs exhibit greater antibacterial activities toward the microorganisms E. coli and S. aureus than ZnO-Ag, which could be beneficial for efficient antimicrobial agents in water and air treatment applications.
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Affiliation(s)
- Rashad Al-Gaashani
- Qatar Environment and Energy Research Institute (QEERI), Hamad Bin Khalifa University (HBKU), Qatar Foundation, 34110, Doha, Qatar.
| | - Mujaheed Pasha
- HBKU Core Labs, Hamad Bin Khalifa University, Qatar Foundation, Doha, Qatar
| | - Khadeeja Abdul Jabbar
- Qatar Environment and Energy Research Institute (QEERI), Hamad Bin Khalifa University (HBKU), Qatar Foundation, 34110, Doha, Qatar
| | - Akshath R Shetty
- HBKU Core Labs, Hamad Bin Khalifa University, Qatar Foundation, Doha, Qatar
| | - Hussein Baqiah
- Shandong Key Laboratory of Biophysics, Institute of Biophysics, Dezhou University, No.566 University Rd. West, Dezhou, Shandong, China
| | - Said Mansour
- HBKU Core Labs, Hamad Bin Khalifa University, Qatar Foundation, Doha, Qatar
| | - Viktor Kochkodan
- Qatar Environment and Energy Research Institute (QEERI), Hamad Bin Khalifa University (HBKU), Qatar Foundation, 34110, Doha, Qatar
| | - Jenny Lawler
- Qatar Environment and Energy Research Institute (QEERI), Hamad Bin Khalifa University (HBKU), Qatar Foundation, 34110, Doha, Qatar
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Yavari S, Olaifa K, Shafiee D, Rasuli R, Shafiee M. Molybdenum oxide nanotube caps decorated with ultrafine Ag nanoparticles: Synthesis and antimicrobial activity. Int J Pharm 2023; 647:123528. [PMID: 37863449 DOI: 10.1016/j.ijpharm.2023.123528] [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: 08/02/2023] [Revised: 09/28/2023] [Accepted: 10/16/2023] [Indexed: 10/22/2023]
Abstract
In the contemporary era, microorganisms, spanning bacteria and viruses, are increasingly acknowledged as emerging contaminants in the environment, presenting significant risks to public health. Nevertheless, conventional methods for disinfecting these microorganisms are often ineffective. Additionally, they come with disadvantages such as high energy usage, negative environmental consequences, increased expenses, and the generation of harmful byproducts. The development of next-generation antifungal and antibacterial agents is dependent on newly synthesized nanomaterials with inherent antimicrobial behavior. In this study, we report an arc-discharge method to synthesize MoOx nanosheets and microbelts, followed by decorating them with ultrafine Ag nanoparticles (NPs). Scanning and transmission electron microscopies show that Ag NPs formation on the Molybdenum oxide nanostructures rolls them into nanotube caps (NTCs), revealing inner and outer diameters of approximately 19.8 nm and 105.5 nm, respectively. Additionally, the Ag NPs are ultrafine, with sizes in the range of 5-8 nm. Results show that the prepared NTCs exhibit dose-dependent sensitivity to both planktonic and biofilm cells of Escherichia coli and Candida albicans. The anti-biofilm activity in terms of biofilm inhibition ranged from 19.7 to 77.2% and 11.3-82.3%, while removal of more than 70% and 90% of preformed biofilms was achieved for E. coli and C. albicans, respectively, showing good potential for antimicrobial coating. Initial MoOx exhibits positive potential, while Ag-decorated Molybdenum oxide NTCs show dual potential effects (positive for Molybdenum oxide NTCs and negative for Ag NPs. Molybdenum oxide NTCs, with their strong positive potential, efficiently attract microbes due to their negatively charged cell surfaces, facilitating the antimicrobial effect of Ag NPs, leading to cell damage and death. These findings suggest that the synthesized NPs could serve as a suitable coating for biomedical applications.
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Affiliation(s)
- Shabnam Yavari
- Department of Physics, Faculty of Science, University of Zanjan, Zanjan, Iran; Department of Electrical and Computer Engineering, School of Engineering and Digital Sciences, Nazarbayev University, Astana 010000, Kazakhstan
| | - Kayode Olaifa
- Department of Biology, Nazarbayev Intellectual School of Biology and Chemistry, Aktau, Kazakhstan; Biofilm Laboratory, Department of Chemical and Materials Engineering, School of Engineering and Digital Sciences, Nazarbayev University, Astana 010000, Kazakhstan
| | - Darya Shafiee
- Department of Biomedical Sciences, School of Medicine, Nazarbayev University, Astana 010000, Kazakhstan
| | - Reza Rasuli
- Department of Physics, Faculty of Science, University of Zanjan, Zanjan, Iran.
| | - Mehdi Shafiee
- Energetic Cosmos Laboratory, Nazarbayev University, Astana 010000, Kazakhstan.
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Tian J, Paterson TE, Zhang J, Li Y, Ouyang H, Asencio IO, Hatton PV, Zhao Y, Li Z. Enhanced Antibacterial Ability of Electrospun PCL Scaffolds Incorporating ZnO Nanowires. Int J Mol Sci 2023; 24:14420. [PMID: 37833866 PMCID: PMC10572921 DOI: 10.3390/ijms241914420] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2023] [Revised: 09/19/2023] [Accepted: 09/20/2023] [Indexed: 10/15/2023] Open
Abstract
The infection of implanted biomaterial scaffolds presents a major challenge. Existing therapeutic solutions, such as antibiotic treatment and silver nanoparticle-containing scaffolds are becoming increasingly impractical because of the growth of antibiotic resistance and the toxicity of silver nanoparticles. We present here a novel concept to overcome these limitations, an electrospun polycaprolactone (PCL) scaffold functionalised with zinc oxide nanowires (ZnO NWs). This study assessed the antibacterial capabilities and biocompatibility of PCL/ZnO scaffolds. The fabricated scaffolds were characterised by SEM and EDX, which showed that the ZnO NWs were successfully incorporated and distributed in the electrospun PCL scaffolds. The antibacterial properties were investigated by co-culturing PCL/ZnO scaffolds with Staphylococcus aureus. Bacterial colonisation was reduced to 51.3% compared to a PCL-only scaffold. The biocompatibility of the PCL/ZnO scaffolds was assessed by culturing them with HaCaT cells. The PCL scaffolds exhibited no changes in cell metabolic activity with the addition of the ZnO nanowires. The antibacterial and biocompatibility properties make PCL/ZnO a good choice for implanted scaffolds, and this work lays a foundation for ZnO NWs-infused PCL scaffolds in the potential clinical application of tissue engineering.
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Affiliation(s)
- Jingjing Tian
- Medical Science Research Center, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100730, China; (J.T.); (Y.L.)
| | - Thomas E. Paterson
- School of Clinical Dentistry, University of Sheffield, Sheffield S10 2TA, UK; (T.E.P.); (I.O.A.); (P.V.H.)
| | - Jingjia Zhang
- Department of Clinical Laboratory, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100730, China;
| | - Yingxing Li
- Medical Science Research Center, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100730, China; (J.T.); (Y.L.)
| | - Han Ouyang
- School of Nanoscience and Engineering, University of Chinese Academy of Sciences, Beijing 101408, China;
| | - Ilida Ortega Asencio
- School of Clinical Dentistry, University of Sheffield, Sheffield S10 2TA, UK; (T.E.P.); (I.O.A.); (P.V.H.)
| | - Paul V. Hatton
- School of Clinical Dentistry, University of Sheffield, Sheffield S10 2TA, UK; (T.E.P.); (I.O.A.); (P.V.H.)
| | - Yu Zhao
- Department of Orthopaedic Surgery, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100730, China
| | - Zhou Li
- Beijing Key Laboratory of Micro-Nano Energy and Sensor, Beijing Institute of Nanoenergy and Nanosystems, Chinese Academy of Sciences, Beijing 101400, China
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Mohamad Sukri SNA, Shameli K, Teow SY, Chew J, Ooi LT, Lee-Kiun Soon M, Ismail NA, Moeini H. Enhanced antibacterial and anticancer activities of plant extract mediated green synthesized zinc oxide-silver nanoparticles. Front Microbiol 2023; 14:1194292. [PMID: 37577438 PMCID: PMC10421725 DOI: 10.3389/fmicb.2023.1194292] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2023] [Accepted: 07/10/2023] [Indexed: 08/15/2023] Open
Abstract
This study presents a green synthesis approach for the fabrication of zinc oxide-silver nanoparticles (ZnO-Ag-NPs) using Punica granatum fruit peels extract as a natural reducing and stabilizing agent. This eco-friendly method offers a sustainable alternative to conventional methods that often employ toxic or hazardous chemicals. Antibacterial and anti-cancer activities of the green synthesized nanoparticles were then assessed in vitro. X-ray diffraction confirmed the production of ZnO-Ag-NPs with increasing crystallinity in higher pH values. The ZnO-Ag-NPs were found to be agglomerated with spherical Ag-NPs. Fourier Transform Infrared (FTIR) spectra revealed a broad band in ZnO-Ag-NPs ranging from 400-1 to 530 cm-1 with reduced intensity as compared to ZnO-NPs, indicating the formation of Ag-NPs on the surface of ZnO-NPs. The synthesized ZnO-Ag-NPs exhibited potent antibacterial activity against a broad spectrum of bacterial strains, particularly Gram-positive bacteria, with superior inhibition activity compared to ZnO-NPs. Moreover, ZnO-Ag-NPs showed a dose-dependent anti-proliferative effect on colorectal-, lung-, and cervical cancer cells. ZnO-Ag-NPs showed significantly greater efficacy in inhibiting cancer cell growth at a lower concentration of 31.25 μg/mL, compared to ZnO-NPs which required over 500 μg/mL, possibly due to the presence of silver nanoparticles (Ag-NPs). The results obtained from this study demonstrate the potential of green synthesis approaches in the fabrication of therapeutic nanomaterials for cancer treatment, as well as other biomedical applications.
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Affiliation(s)
| | - Kamyar Shameli
- School of Medicine, Institute of Virology, Technical University of Munich, Munich, Germany
| | - Sin-Yeang Teow
- Department of Biology, College of Science, Mathematics and Technology, Wenzhou-Kean University, Wenzhou, Zhejiang, China
| | - Jactty Chew
- Department of Biological Sciences, School of Medical and Life Sciences, Sunway University, Bandar Sunway, Selangor, Malaysia
| | - Li-Ting Ooi
- School of Health Sciences, International Medical University, Kuala Lumpur, Malaysia
| | - Michiele Lee-Kiun Soon
- Department of Medical Sciences, School of Medical and Life Sciences, Sunway University, Bandar Sunway, Selangor, Malaysia
| | - Nur Afini Ismail
- Malaysia-Japan International Institute of Technology, Universiti Teknologi Malaysia, Kuala Lumpur, Malaysia
| | - Hassan Moeini
- School of Medicine, Institute of Virology, Technical University of Munich, Munich, Germany
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Arif H, Qayyum S, Akhtar W, Fatima I, Kayani WK, Rahman KU, Al-Onazi WA, Al-Mohaimeed AM, Bangash NK, Ashraf N, Razak SA, Kamal A, Ali S. Synthesis and Characterization of Zinc Oxide Nanoparticles at Different pH Values from Clinopodium vulgare L. and Their Assessment as an Antimicrobial Agent and Biomedical Application. MICROMACHINES 2023; 14:1285. [PMID: 37512596 PMCID: PMC10383690 DOI: 10.3390/mi14071285] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/26/2023] [Revised: 06/15/2023] [Accepted: 06/19/2023] [Indexed: 07/30/2023]
Abstract
The current study attempts to evaluate the formation, morphology, and physico-chemical properties of zinc oxide nanoparticles (ZnO NPs) synthesized from Clinopodium vulgare extract at different pH values and to investigate their antimicrobial and biomedical application potential. The reduction of zinc ions to ZnO NPs was determined by UV spectra, which revealed absorption peaks at 390 nm at pH 5 and 348 nm at pH 9, respectively. The spherical morphology of the nanoparticles was observed using scanning electron microscopy (SEM), and the size was 47 nm for pH 5 and 45 nm for pH 9. Fourier-transformed infrared spectroscopy (FTIR) was used to reveal the presence of functional groups on the surface of nanoparticles. The antibacterial activity was examined against Staphylococcus aureus, Streptococcus pyogenes, and Klebsiella pneumonia via the agar-well diffusion method. Comparatively, the highest activities were recorded at pH 9 against all bacterial strains, and among these, biogenic ZnO NPs displayed the maximum inhibition zone (i.e., 20.88 ± 0.79 mm) against S. aureus. ZnO NPs prepared at pH 9 exhibited the highest antifungal activity of 80% at 25 mg/mL and antileishmanial activity of 82% at 400 mg/mL. Altogether, ZnO NPs synthesized at pH 9 show promising antimicrobial potential and could be used for biomedical applications.
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Affiliation(s)
- Hajira Arif
- Department of Botany, University of Azad Jammu and Kashmir, Muzaffarabad 13100, Pakistan
| | - Sidra Qayyum
- Department of Botany, University of Azad Jammu and Kashmir, Muzaffarabad 13100, Pakistan
| | - Wasim Akhtar
- Department of Botany, University of Azad Jammu and Kashmir, Muzaffarabad 13100, Pakistan
| | - Iram Fatima
- Department of Biotechnology, Fatima Jinnah Women University, Rawalpindi 46000, Pakistan
| | - Waqas Khan Kayani
- Department of Biotechnology, Faculty of Basic and Applied Sciences, University of Kotli, Azad Jammu and Kashmir, Kotli 11100, Pakistan
| | | | - Wedad A Al-Onazi
- Department of Chemistry, College of Science, King Saud University, P.O. Box 22452, Riyadh 11495, Saudi Arabia
| | - Amal M Al-Mohaimeed
- Department of Chemistry, College of Science, King Saud University, P.O. Box 22452, Riyadh 11495, Saudi Arabia
| | - Naila Khan Bangash
- Environmental Microbiology Laboratory, Department of Agricultural Biological Chemistry, College of Agriculture and Life Sciences, Chonnam National University, Gwangju 61186, Republic of Korea
| | - Nasra Ashraf
- Department of Zoology, University of Azad Jammu and Kashmir, Muzaffarabad 13100, Pakistan
| | - Sarah Abdul Razak
- Institute of Biological Sciences, Faculty of Science, Universiti Malaya, Kuala Lumpur 50603, Malaysia
| | - Asif Kamal
- Department of Plant Sciences, Faculty of Biological Sciences, Quaid-i-Azam University, Islamabad 45320, Pakistan
| | - Sajid Ali
- Department of Horticulture and Life Science, Yeungnam University, Gyeongsan 38541, Republic of Korea
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Nikolova MP, Joshi PB, Chavali MS. Updates on Biogenic Metallic and Metal Oxide Nanoparticles: Therapy, Drug Delivery and Cytotoxicity. Pharmaceutics 2023; 15:1650. [PMID: 37376098 DOI: 10.3390/pharmaceutics15061650] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2023] [Revised: 05/20/2023] [Accepted: 05/30/2023] [Indexed: 06/29/2023] Open
Abstract
The ambition to combat the issues affecting the environment and human health triggers the development of biosynthesis that incorporates the production of natural compounds by living organisms via eco-friendly nano assembly. Biosynthesized nanoparticles (NPs) have various pharmaceutical applications, such as tumoricidal, anti-inflammatory, antimicrobials, antiviral, etc. When combined, bio-nanotechnology and drug delivery give rise to the development of various pharmaceutics with site-specific biomedical applications. In this review, we have attempted to summarize in brief the types of renewable biological systems used for the biosynthesis of metallic and metal oxide NPs and the vital contribution of biogenic NPs as pharmaceutics and drug carriers simultaneously. The biosystem used for nano assembly further affects the morphology, size, shape, and structure of the produced nanomaterial. The toxicity of the biogenic NPs, because of their pharmacokinetic behavior in vitro and in vivo, is also discussed, together with some recent achievements towards enhanced biocompatibility, bioavailability, and reduced side effects. Because of the large biodiversity, the potential biomedical application of metal NPs produced via natural extracts in biogenic nanomedicine is yet to be explored.
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Affiliation(s)
- Maria P Nikolova
- Department of Material Science and Technology, University of Ruse "A. Kanchev", 8 Studentska Str., 7017 Ruse, Bulgaria
| | - Payal B Joshi
- Shefali Research Laboratories, 203/454, Sai Section, Ambernath (East), Mumbai 421501, Maharashtra, India
| | - Murthy S Chavali
- Office of the Dean (Research), Dr. Vishwanath Karad MIT World Peace University (MIT-WPU), Kothrud, Pune 411038, Maharashtra, India
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Xie J, Li H, Zhang T, Song B, Wang X, Gu Z. Recent Advances in ZnO Nanomaterial-Mediated Biological Applications and Action Mechanisms. NANOMATERIALS (BASEL, SWITZERLAND) 2023; 13:nano13091500. [PMID: 37177043 PMCID: PMC10180283 DOI: 10.3390/nano13091500] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/28/2023] [Revised: 04/19/2023] [Accepted: 04/24/2023] [Indexed: 05/15/2023]
Abstract
In recent years, with the deepening research, metal zinc oxide (ZnO) nanomaterials have become a popular research object in the biological field, particularly in biomedicine and food safety, which is attributed to their unique physicochemical properties such as high surface area and volume ratio, luminescence effect, surface characteristics and biological activities. Herein, this review provides a detailed overview of the ZnO nanomaterial-mediated biological applications that involve anti-bacterial, anti-tumor, anti-inflammation, skin care, biological imaging and food packaging applications. Importantly, the corresponding action mechanisms of ZnO nanomaterials are pointed. Additionally, the structure and structure-dependent physicochemical properties, the common synthesis methods and the biosafety of ZnO nanoparticles are revealed in brief. Finally, the significance and future challenges of ZnO nanomaterial applications are concluded.
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Affiliation(s)
- Jiani Xie
- College of Food and Biological Engineering, Chengdu University, Chengdu 610106, China
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China
| | - Huilun Li
- College of Food and Biological Engineering, Chengdu University, Chengdu 610106, China
- Clinical Medical College, Chengdu University, Chengdu 610106, China
| | - Tairan Zhang
- College of Food and Biological Engineering, Chengdu University, Chengdu 610106, China
| | - Bokai Song
- College of Food and Biological Engineering, Chengdu University, Chengdu 610106, China
| | - Xinhui Wang
- College of Food and Biological Engineering, Chengdu University, Chengdu 610106, China
| | - Zhanjun Gu
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China
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Smola-Dmochowska A, Lewicka K, Macyk A, Rychter P, Pamuła E, Dobrzyński P. Biodegradable Polymers and Polymer Composites with Antibacterial Properties. Int J Mol Sci 2023; 24:ijms24087473. [PMID: 37108637 PMCID: PMC10138923 DOI: 10.3390/ijms24087473] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2023] [Revised: 04/05/2023] [Accepted: 04/07/2023] [Indexed: 04/29/2023] Open
Abstract
Antibiotic resistance is one of the greatest threats to global health and food security today. It becomes increasingly difficult to treat infectious disorders because antibiotics, even the newest ones, are becoming less and less effective. One of the ways taken in the Global Plan of Action announced at the World Health Assembly in May 2015 is to ensure the prevention and treatment of infectious diseases. In order to do so, attempts are made to develop new antimicrobial therapeutics, including biomaterials with antibacterial activity, such as polycationic polymers, polypeptides, and polymeric systems, to provide non-antibiotic therapeutic agents, such as selected biologically active nanoparticles and chemical compounds. Another key issue is preventing food from contamination by developing antibacterial packaging materials, particularly based on degradable polymers and biocomposites. This review, in a cross-sectional way, describes the most significant research activities conducted in recent years in the field of the development of polymeric materials and polymer composites with antibacterial properties. We particularly focus on natural polymers, i.e., polysaccharides and polypeptides, which present a mechanism for combating many highly pathogenic microorganisms. We also attempt to use this knowledge to obtain synthetic polymers with similar antibacterial activity.
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Affiliation(s)
- Anna Smola-Dmochowska
- Centre of Polymer and Carbon Materials, Polish Academy of Sciences, 34 Marii Curie-Skłodowskiej Str., 41-819 Zabrze, Poland
| | - Kamila Lewicka
- Faculty of Science and Technology, Jan Dlugosz University in Czestochowa, 13/15 Armii Krajowej Av., 42-200 Czestochowa, Poland
| | - Alicja Macyk
- Department of Biomaterials and Composites, Faculty of Materials Science and Ceramics, AGH University of Science and Technology, 30 Mickiewicza Av., 30-059 Kraków, Poland
| | - Piotr Rychter
- Faculty of Science and Technology, Jan Dlugosz University in Czestochowa, 13/15 Armii Krajowej Av., 42-200 Czestochowa, Poland
| | - Elżbieta Pamuła
- Department of Biomaterials and Composites, Faculty of Materials Science and Ceramics, AGH University of Science and Technology, 30 Mickiewicza Av., 30-059 Kraków, Poland
| | - Piotr Dobrzyński
- Centre of Polymer and Carbon Materials, Polish Academy of Sciences, 34 Marii Curie-Skłodowskiej Str., 41-819 Zabrze, Poland
- Faculty of Science and Technology, Jan Dlugosz University in Czestochowa, 13/15 Armii Krajowej Av., 42-200 Czestochowa, Poland
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12
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Do Truc V, Vuong Nguyen T, Viet Vu T, Anh Nguyen T, Dung Ngo T, Tam Le T, Lu Le T, Thi Pham L, Dai Tran L. ZnO−Ag Hybrid Nanoparticles Used in the Antimicrobial Solvent‐Based Coatings: Antibacterial Studies in the Darkness and Under Visible‐Light Irradiation. ChemistrySelect 2023. [DOI: 10.1002/slct.202204966] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Affiliation(s)
- Vy Do Truc
- Institute for Tropical Technology Vietnam Academy of Science and Technology 18 Hoang Quoc Viet Road Hanoi 100000 Vietnam
- Graduate University of Science and Technology Vietnam Academy of Science and Technology 18 Hoang Quoc Viet Road Hanoi 100000 Vietnam
| | - Thien Vuong Nguyen
- Institute for Tropical Technology Vietnam Academy of Science and Technology 18 Hoang Quoc Viet Road Hanoi 100000 Vietnam
- Graduate University of Science and Technology Vietnam Academy of Science and Technology 18 Hoang Quoc Viet Road Hanoi 100000 Vietnam
| | - Tien Viet Vu
- Faculty of Chemical Technology Hanoi University of Industry Bac Tu Liem Hanoi 100000 Vietnam
| | - Tuan Anh Nguyen
- Institute for Tropical Technology Vietnam Academy of Science and Technology 18 Hoang Quoc Viet Road Hanoi 100000 Vietnam
| | - Thanh Dung Ngo
- Institute for Tropical Technology Vietnam Academy of Science and Technology 18 Hoang Quoc Viet Road Hanoi 100000 Vietnam
| | - The Tam Le
- Vinh University 182 Le Duan Vinh City 460000 Vietnam
| | - Trong Lu Le
- Institute for Tropical Technology Vietnam Academy of Science and Technology 18 Hoang Quoc Viet Road Hanoi 100000 Vietnam
| | - Lan Thi Pham
- Institute for Tropical Technology Vietnam Academy of Science and Technology 18 Hoang Quoc Viet Road Hanoi 100000 Vietnam
| | - Lam Dai Tran
- Institute for Tropical Technology Vietnam Academy of Science and Technology 18 Hoang Quoc Viet Road Hanoi 100000 Vietnam
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Mehdi Firouzi, Ehteshamzadeh M, Saba F, Khayati GR. Investigating the Antibacterial Activity of Nanoparticles Isolated from Hot Spring against Staphylococcus aureus and Pseudomonas aeruginosa: An Experimental Study. J WATER CHEM TECHNO+ 2023. [DOI: 10.3103/s1063455x23010022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/19/2023]
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Green microwave synthesis of ZnO and CeO 2 nanorods for infectious diseases control and biomedical applications. AMB Express 2022; 12:153. [PMID: 36504111 PMCID: PMC9742012 DOI: 10.1186/s13568-022-01495-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2022] [Accepted: 11/20/2022] [Indexed: 12/14/2022] Open
Abstract
Control of Infectious diseases such as; bacteria and viruses, has become a globally critical issue, since the appearance of COVID-19 virus in 2020. In addition to the microbial resistance of the currently available therapeutic drugs as well as, its prolonged side effects make its use is of health care concern. Green nanotechnology approach is a promising solution for controlling such infectious diseases and many biomedical purposes. In the present study, green synthesis approach based on microwave-assisted hydrothermal method is an innovative and environmentally friendly method for preparation of bioactive CeO2 and ZnO nanorod structured materials using Olea europaea (O. e.) leaf plant extract as a natural medicinal capping agent for controlling the shape and size of nano-products. The optical and structural analyses of the obtained nanorod-structures are characterized using; TEM, FTIR, XRD, SBET analyses and particle size analyzer. The green-synthesized ZnO and CeO2 nanorods display an average crystallite size of approximately 15 and 5 nm, respectively. The antimicrobial activity of ZnO and CeO2 nanorods compared with the traditional hydrothermal methods, was examined on six clinical pathogens including; (E. coli Serratia sp., S. aureus, Bacillus subtilis, Streptococcus mutant, and MRSA). The results indicated superior antimicrobial and anti-tumor activities towards hepatocellular carcinoma cell lines (IC50 = 117.24 and 103.50 μg mL-1 for ZnO and CeO2 and LD50 > 3000 mg kg-1). This demonstrates that the green microwave process is a promising approach for the synthesis of effective ZnO and CeO2 nanomaterials applied for many biomedical applications.
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Hammoud A, Souli M, Diouani MF, Alhalaili B, Vidu R, Kamoun-Turki N. Synthesis and Characterization of Novel Sprayed Ag-Doped Quaternary Cu 2MgSnS 4 Thin Film for Antibacterial Application. NANOMATERIALS (BASEL, SWITZERLAND) 2022; 12:nano12193459. [PMID: 36234587 PMCID: PMC9565582 DOI: 10.3390/nano12193459] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/26/2022] [Revised: 09/22/2022] [Accepted: 09/26/2022] [Indexed: 06/05/2023]
Abstract
In this work, the effects of silver doping with different Ag/(Ag + Cu) ratios (i.e., 2%, 5% and 10% at.% in the spray solution) on the structural, morphological, optical, electrical and antibacterial properties of Cu2MgSnS4 (CMTS) thin film grown by spray pyrolysis have been studied. The X-ray diffraction (XRD) and selected area electron diffraction (SAED) results have shown that the kesterite phase of CMTS thin films has a maximum crystallite size of about 19.60 nm for 5% Ag/(Ag + Cu). Scanning electron microscopy (SEM) images have shown spherical grain shapes. The transmission electron microscopy (TEM) and high-resolution TEM (HRTEM) microscopy observations confirmed the intrinsic reticular planes of CMTS thin film with (112) as a preferred orientation and interplanar spacing value of 3.1 Å. The optical properties showed high absorbance and an absorption coefficient of about 104 cm-1 in the visible region with an optical band gap energy of 1.51 eV. Impedance analysis spectroscopy demonstrated good electrical properties of the CMTS film obtained using 5% Ag/(Ag + Cu). The antibacterial activity of the undoped and Ag-doped particles of CMTS obtained using 5% Ag/(Ag + Cu) against different strains of pathogenic bacteria was tested using the agar well diffusion method. These results showed a significant antibacterial activity of the Ag-doped CMTS particle, which was much higher than the undoped CMTS particles. These experimental findings may open new practices for the Ag-doped CMTS compound, especially the one obtained using 5% Ag/(Ag + Cu), in antibacterial application.
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Affiliation(s)
- Amal Hammoud
- LR99ES13, Laboratoire de Physique de la Matière Condensée (LPMC), Département de Physique, Faculté des Sciences de Tunis, Université Tunis El Manar, Tunis 2092, Tunisia
| | - Mehdi Souli
- LR99ES13, Laboratoire de Physique de la Matière Condensée (LPMC), Département de Physique, Faculté des Sciences de Tunis, Université Tunis El Manar, Tunis 2092, Tunisia
| | - Mohamed Fethi Diouani
- LR16IPT03, Laboratory of Epidemiology and Veterinary Microbiology (LEMV), Institut Pasteur de Tunis, Tunis-Belvédère 1002, Tunisia
| | - Badriyah Alhalaili
- Nanotechnology and Advanced Materials Program, Kuwait Institute for Scientific Research, P.O. Box 24885, Safat 13109, Kuwait
| | - Ruxandra Vidu
- Faculty of Materials Science and Engineering, University POLITEHNICA of Bucharest, 060042 Bucharest, Romania
- Department of Electrical and Computer Engineering, University of California Davis, Davis, CA 95616, USA
| | - Najoua Kamoun-Turki
- LR99ES13, Laboratoire de Physique de la Matière Condensée (LPMC), Département de Physique, Faculté des Sciences de Tunis, Université Tunis El Manar, Tunis 2092, Tunisia
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Photocatalytic Disinfection of E. coli Using Silver-Doped TiO2 Coated on Cylindrical Cordierite Honeycomb Monolith Photoreactor Under Artificial Sunlight Irradiation. Top Catal 2022. [DOI: 10.1007/s11244-022-01700-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Biological Applications of Ball-Milled Synthesized Biochar-Zinc Oxide Nanocomposite Using Zea mays L. MOLECULES (BASEL, SWITZERLAND) 2022; 27:molecules27165333. [PMID: 36014570 PMCID: PMC9412314 DOI: 10.3390/molecules27165333] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/27/2022] [Revised: 08/13/2022] [Accepted: 08/15/2022] [Indexed: 11/29/2022]
Abstract
Nanotechnology is one of the vital and quickly developing areas and has several uses in various commercial zones. Among the various types of metal oxide-based nanoparticles, zinc oxide nanoparticles (ZnO NPs) are frequently used because of their effective properties. The ZnO nanocomposites are risk-free and biodegradable biopolymers, and they are widely being applied in the biomedical and therapeutics fields. In the current study, the biochar-zinc oxide (MB-ZnO) nanocomposites were prepared using a solvent-free ball-milling technique. The prepared MB-ZnO nanocomposites were characterized through scanning electron microscopy (SEM), energy-dispersive X-ray (EDX) spectroscopy, X-ray powder diffraction (XRD), and thermogravimetric analysis (TGA), Fourier-transform infrared spectroscopy (FTIR), and ultraviolet–visible (UV) spectroscopy. The MB-ZnO particles were measured as 43 nm via the X-ray line broadening technique by applying the Scherrer equation at the highest peak of 36.36°. The FTIR spectroscope results confirmed MB-ZnO’s formation. The band gap energy gap values of the MB-ZnO nanocomposites were calculated as 2.77 eV by using UV–Vis spectra. The MB-ZnO nanocomposites were tested in various in vitro biological assays, including biocompatibility assays against the macrophages and RBCs and the enzymes’ inhibition potential assay against the protein kinase, alpha-amylase, cytotoxicity assays of the leishmanial parasites, anti-inflammatory activity, antifungal activity, and antioxidant activities. The maximum TAC (30.09%), TRP (36.29%), and DPPH radicals’ scavenging potential (49.19%) were determined at the maximum dose of 200 µg/mL. Similarly, the maximum activity at the highest dose for the anti-inflammatory (76%), at 1000 μg/mL, alpha-amylase inhibition potential (45%), at 1000 μg/mL, antileishmanial activity (68%), at 100 μg/mL, and antifungal activity (73 ± 2.1%), at 19 mg/mL, was perceived, respectively. It did not cause any potential harm during the biocompatibility and cytotoxic assay and performed better during the anti-inflammatory and antioxidant assay. MB-ZnO caused moderate enzyme inhibition and was more effective against pathogenic fungus. The results of the current study indicated that MB-ZnO nanocomposites could be applied as effective catalysts in various processes. Moreover, this research provides valuable and the latest information to the readers and researchers working on biopolymers and nanocomposites.
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Green Approaches, Potentials, and Applications of Zinc Oxide Nanoparticles in Surface Coatings and Films. Bioinorg Chem Appl 2022; 2022:3077747. [PMID: 35966407 PMCID: PMC9371815 DOI: 10.1155/2022/3077747] [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: 01/31/2022] [Accepted: 06/22/2022] [Indexed: 11/17/2022] Open
Abstract
Interest in the use of zinc oxide nanoparticles (ZnO NPs) in surface coatings and films has increased as its incorporation can significantly improve the mechanical and antimicrobial properties of coatings and film solutions. In an effort to produce green or eco-friendly products, the potential use of ZnO NPs biosynthesized from natural resources to replace conventional petroleum-derived polymers has been investigated. This review provides an insight into the growing trend of incorporating ZnO NPs into synthetic or semi-synthetic or bio-based polymeric materials via different synthesis methods as well as its characteristics and potential applications in surface coatings and films. The antimicrobial potential of ZnO NPs to inhibit the growth of various types of microorganisms as well as its use in surface coatings or films to impart antimicrobial activities that prevent the spread of microorganisms, especially the COVID-19 virus, was also discussed.
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Kaptan Usul S, Aslan A, Lüleci HB, Ergüden B, Çöpoğlu MT, Oflaz H, Soydan AM, Özçimen D. Investigation of antimicrobial and mechanical effects of functional nanoparticles in novel dental resin composites. J Dent 2022; 123:104180. [PMID: 35691455 DOI: 10.1016/j.jdent.2022.104180] [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: 03/17/2022] [Revised: 06/03/2022] [Accepted: 06/06/2022] [Indexed: 11/29/2022] Open
Abstract
OBJECTIVES Imidazole and benzimidazole derivatives have recently attracted attention as remarkable materials due to their advantages in chemistry, pharmacology, and biomaterials. This article focuses on dental composites with azole functional groups incorporated to affect their physicochemical and mechanical properties and antibacterial activity. METHODS Dental composites were fabricated by embedding the functionalized imidazole and benzimidazole nanoparticles into a Bis-GMA/TEGDMA matrix to form the imidazole and benzimidazole dental composites series (I and B). The material was produced through hand blending of the monomer (50:50, wt%), filler (0-30, wt%), and initiator combination (CQ/EDMAB:0.8:1.6, wt%), and LED light-curing unit for 60 s. RESULTS Using various characterization techniques, I and B series were validated. The dental composites' approximate solubility and sorption significances were evaluated by conducting experiments on specific dental composite formulations. Fenton reaction test was performed to determine the chemical stability of the dental composites. The mechanical properties of the dental composites were investigated. Finally, by testing cell growth in the presence of composites, their antibacterial activities were determined. CONCLUSIONS In this study, it was observed that the mechanical, physiochemical, and antibacterial properties of the functional azole-containing nanoparticles were positively improved by adding them to the structure of dental composites. These experimental results paved the way for the synthesized materials to be used in industrial applications. CLINICAL SIGNIFICANCE Since the chemical, mechanical, and antimicrobial properties of dental composites containing 10% imidazole and benzimidazole functional nanoparticles are far superior, they constitute an excellent alternative for preventing dental caries and long-term use of dental composites.
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Affiliation(s)
- Sedef Kaptan Usul
- Bioengineering Department, Gebze Technical University, Kocaeli 41400, Turkey.
| | - Ayşe Aslan
- Bioengineering Department, Gebze Technical University, Kocaeli 41400, Turkey.
| | - Hatice Büşra Lüleci
- Bioengineering Department, Gebze Technical University, Kocaeli 41400, Turkey.
| | - Bengü Ergüden
- Bioengineering Department, Gebze Technical University, Kocaeli 41400, Turkey.
| | | | - Hakan Oflaz
- Bioengineering Department, Gebze Technical University, Kocaeli 41400, Turkey.
| | - Ali Murat Soydan
- Institute of Energy Technologies, Gebze Technical University, Kocaeli 41400, Turkey.
| | - Didem Özçimen
- Bioengineering Department, Yıldız Technical University, Istanbul 34349, Turkey.
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Mehbas Dewan T, Rahim Hateet R. Detect the Antibacterial and Antitumor of synthesized Silver Nanoparticles Using Microbacterium sp. BIONATURA 2022. [DOI: 10.21931/rb/2022.07.02.30] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
Abstract
Metal nanoparticles are widely utilized in biotechnology and biomedicine for various applications, including medication delivery, imaging, and bacterial growth control. Silver nanoparticles (AgNPs) were synthesized by bacteria, fungi, algae, and plants. The Study aimed to synthesize nanomaterial with a cost-effective, environmentally friendly, and the uses of AgNPs as antibacterial (against pathogenic bacteria) and anticancer (on MCF7 cell line). In this Study, bacteria were collected from different soil samples. Isolated, purified by selective media, identification genotypically by 16rRNA sequencing analysis, then compared with NCBI, GenBank as Microbacterium sp. Biosynthesis of silver nanoparticles using Microbacterium for extracellular synthesis by reducing silver ions to silver nanoparticles. The color change to brown and reddish-brown was the first indication of the AgNPs formation; physical characterization using UV-Visible spectroscopy showed a wavelength in 489 nm, while X-ray diffraction (XRD) revealed that the silver nanoparticles were crystalline; transmission electron microscope (TEM) image showed that AgNPs spherical in shape with an average diameter of around 50 nm, in SEM (Scanning electron microscope) AgNPs formed with a diameter of 41-44 nm, spherical and uniform, while Energy-dispersive X-ray show very high silver peaks. Bioactivity of AgNPs by antimicrobial on pathogenic bacteria, which collected from Al- Sadr hospital in Misan (identified by using VITEK). This experiment showed that the inhibition zone was rung from (6- 38mm) on pathogenic bacteria; it was tremendous compared with antibiotics (Gentamycin in this project ranged from(7-28.5mm). Antitumor activity of extracellular biosynthesized AgNPs was determined using the MTT test against breast cancer cells (MCF7 cell line), which showed very high results. AgNPs inhibition breast cancer cell line by about 81% at 100ug/ml, indicating that the rate is outstanding. Finally, different biomedical approaches can benefit from AgNPs as antibacterial agents and anticancer agents with many results.
Keywords. Silver Nanoparticles, Biosynthesis, Antibacterial, and Antitumor.
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Affiliation(s)
| | - Rashid Rahim Hateet
- Department of Biology, College of Science, University of Misan, Maysan, Iraq
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21
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Enhanced Plasmon Based Ag and Au Nanosystems and Their Improved Biomedical Impacts. CRYSTALS 2022. [DOI: 10.3390/cryst12050589] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
Numerous specialists and academics have backed the improved physicochemical characteristics of metal substrate (Ag, Au) based composite nanoparticles for a number of applications, including pharmaceuticals, optoelectronics, and environmental impact. Insights of Ag and Au NPs-based nanomaterials will be discussed, as well as important production, physicochemical, and biotechnological characteristics. The plasmon capacities of Ag and Au NPs, along with their customisable form, scale, and surface modification could be described by specified geometries and constituent contents. It was revealed that interaction dynamics of Ag and Au implanted nanomaterials with dopants/defects ratios seem to be more effective in stimulating pathogens by interrupting biochemical reactions. As a result, we focus on defect science in Ag and Au-based nanoscale materials, taking into account surface morphology, ionic packing, and chemical phase assessment. This chapter will cover the important optical, geometrical, and physicochemical features of Ag and Au nanomaterials, and their pharmacological significance.
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22
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Microscopic and Structural Studies of an Antimicrobial Polymer Film Modified with a Natural Filler Based on Triterpenoids. Polymers (Basel) 2022; 14:polym14061097. [PMID: 35335428 PMCID: PMC8953123 DOI: 10.3390/polym14061097] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2022] [Revised: 02/25/2022] [Accepted: 02/25/2022] [Indexed: 02/06/2023] Open
Abstract
The aspects of component visualization of the antimicrobial triterpenoids (betulin) additive, both on the surface and in the bulk of the polymer, constituting food film packaging, are considered. This paper presents new knowledge about the morphology and surface structure of modified films using three independent methodological approaches: optical microscopy; a histological method adapted to packaging materials; and a method of attenuated total internal reflection (ATR) spectroscopy in the infrared region with Fourier transform. The use of these methods shows the betulin granules, individual or forming chains. To visualize the antimicrobial additive in the polymer bulk, a modified histological method adapted for film materials and attenuated total internal reflection (ATR) spectroscopy in the infrared region were used with Fourier transform using a Lumos Bruker microscope (Germany) (ATR crystal based on germanium). Sample sections were analyzed using Leica 818 blades at an angle of 45 degrees. The histological method consists of the study of a biological object thin section, in the transmitted light of a microscope, stained with contrast dyes to reveal its structures, and placed on a glass slide. In the method modified for the present study, instead of a biological one, a synthetic object was used, namely the developed film materials with the addition of natural organic origin. Individual granules are about 2 µm long; chains can be up to 10 µm long. The thickness of the granules ranged from 1 to 1.5 microns. It can be seen that the depth distribution of granules in the film from the inner surface to the outer one is rather uniform. Spectroscopic studies using the method of automatic ATR mapping in the region of 880 cm−1 made it possible to evaluate the distribution of an antimicrobial additive based on triterpenoids on the surface and in the polymer bulk.
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Pradeep H, M B, Suresh S, Thadathil A, Periyat P. Recent trends and advances in polyindole-based nanocomposites as potential antimicrobial agents: a mini review. RSC Adv 2022; 12:8211-8227. [PMID: 35424771 PMCID: PMC8982365 DOI: 10.1039/d1ra09317g] [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: 12/24/2021] [Accepted: 02/23/2022] [Indexed: 11/30/2022] Open
Abstract
Infections caused by multi-drug resistant microbes are a big challenge to the medical field and it necessitates the need for new biomedical agents that can act as potential candidates against these pathogens. Several polyindole based nanocomposites were found to exhibit the ability to release reactive oxygen species (ROS) and hence they show excellent antimicrobial properties. The features of polyindole can be fine-tuned to make them potential alternatives to antibiotics and antifungal medicines. This review clearly portrays the antimicrobial properties of polyindole based nanocomposites, reported so far for biomedical applications. This review will give a clear insight into the scope and possibilities for further research on the biomedical applications of polyindole based nanocomposites.
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Affiliation(s)
- Hareesh Pradeep
- Department of Chemistry, University of Calicut Kerala India-673635
| | - Bindu M
- Department of Environmental Studies, Kannur University Kerala India
| | - Shwetha Suresh
- Department of Environmental Studies, Kannur University Kerala India
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González-Crisostomo JC, López-Juárez R, Yocupicio-Gaxiola RI, Villanueva E, Zavala-Flores E, Petranovskii V. Chabazite Synthesis and Its Exchange with Ti, Zn, Cu, Ag and Au for Efficient Photocatalytic Degradation of Methylene Blue Dye. Int J Mol Sci 2022; 23:ijms23031730. [PMID: 35163652 PMCID: PMC8836194 DOI: 10.3390/ijms23031730] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2021] [Revised: 01/19/2022] [Accepted: 01/30/2022] [Indexed: 02/06/2023] Open
Abstract
A chabazite-type zeolite was prepared by the hydrothermal method. Before ion exchange, the chabazite was activated with ammonium chloride (NH4Cl). The ion exchange process was carried out at a controlled temperature and constant stirring to obtain ion-exchanged chabazites of Ti4+ chabazite (TiCHA), Zn2+ chabazite (ZnCHA), Cu2+ chabazite (CuCHA), Ag+ chabazite (AgCHA) and Au3+ chabazite (AuCHA). Modified chabazite samples were characterized by X-ray diffraction (XRD), scanning electron microscope equipped with energy-dispersive spectroscopy (SEM-EDS), transmission electron microscopy (TEM), Fourier transform infrared (FTIR), N2 adsorption methods and UV–visible diffuse reflectance spectroscopy (DRS). XRD results revealed that the chabazite structure did not undergo any modification during the exchange treatments. The photocatalytic activity of chabazite samples was evaluated by the degradation of methylene blue (MB) in the presence of H2O2 under ultraviolet (UV) light illumination. The photodegradation results showed a higher degradation efficiency of modified chabazites, compared to the synthesized chabazite. CuCHA showed an efficiency of 98.92% in MB degradation, with a constant of k = 0.0266 min−1 following a first-order kinetic mechanism. Then, it was demonstrated that the modified chabazites could be used for the photodegradation of dyes.
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Affiliation(s)
- José C. González-Crisostomo
- Centro de Nanociencias y Nanotecnología, Universidad Nacional Autonoma de México, Km 107 Carretera Tijuana-Ensenada, Ensenada 22800, Mexico; (R.I.Y.-G.); (V.P.)
- Facultad de Ciencias Químicas e Ingeniería, Universidad Autónoma de Baja California, Calzada Tecnológico, Mesa de Otay, Tijuana 22390, Mexico;
- Correspondence:
| | - Rigoberto López-Juárez
- Instituto de Investigaciones en Materiales, Unidad Morelia, Universidad Nacional Autónoma de México, Antigua Carretera a Pátzcuaro, ExHacienda San José de la Huerta, Morelia 58190, Mexico;
| | - Rosario Isidro Yocupicio-Gaxiola
- Centro de Nanociencias y Nanotecnología, Universidad Nacional Autonoma de México, Km 107 Carretera Tijuana-Ensenada, Ensenada 22800, Mexico; (R.I.Y.-G.); (V.P.)
| | - Eric Villanueva
- Facultad de Ciencias de la Ingeniería y Tecnología, Unidad Valle de las Palmas, Universidad Autónoma de Baja California, Blvd. Universitario, Tijuana 2150018, Mexico;
| | - Ethiel Zavala-Flores
- Facultad de Ciencias Químicas e Ingeniería, Universidad Autónoma de Baja California, Calzada Tecnológico, Mesa de Otay, Tijuana 22390, Mexico;
| | - Vitalii Petranovskii
- Centro de Nanociencias y Nanotecnología, Universidad Nacional Autonoma de México, Km 107 Carretera Tijuana-Ensenada, Ensenada 22800, Mexico; (R.I.Y.-G.); (V.P.)
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Kamarudin SH, Rayung M, Abu F, Ahmad S, Fadil F, Karim AA, Norizan MN, Sarifuddin N, Mat Desa MSZ, Mohd Basri MS, Samsudin H, Abdullah LC. A Review on Antimicrobial Packaging from Biodegradable Polymer Composites. Polymers (Basel) 2022; 14:174. [PMID: 35012197 PMCID: PMC8747113 DOI: 10.3390/polym14010174] [Citation(s) in RCA: 19] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2021] [Revised: 11/23/2021] [Accepted: 11/24/2021] [Indexed: 12/13/2022] Open
Abstract
The development of antimicrobial packaging has been growing rapidly due to an increase in awareness and demands for sustainable active packaging that could preserve the quality and prolong the shelf life of foods and products. The addition of highly efficient antibacterial nanoparticles, antifungals, and antioxidants to biodegradable and environmentally friendly green polymers has become a significant advancement trend for the packaging evolution. Impregnation of antimicrobial agents into the packaging film is essential for impeding or destroying the pathogenic microorganisms causing food illness and deterioration. Higher safety and quality as well as an extended shelf life of sustainable active packaging desired by the industry are further enhanced by applying the different types of antimicrobial packaging systems. Antimicrobial packaging not only can offer a wide range of advantages, but also preserves the environment through usage of renewable and biodegradable polymers instead of common synthetic polymers, thus reducing plastic pollution generated by humankind. This review intended to provide a summary of current trends and applications of antimicrobial, biodegradable films in the packaging industry as well as the innovation of nanotechnology to increase efficiency of novel, bio-based packaging systems.
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Affiliation(s)
- Siti Hasnah Kamarudin
- School of Industrial Technology, Faculty of Applied Sciences, Uitm Shah Alam, Shah Alam 40450, Malaysia; (F.A.); (S.A.); (F.F.); (A.A.K.)
| | - Marwah Rayung
- Department of Chemistry, Faculty of Science and Technology, Universiti Putra Malaysia, Serdang 43400, Malaysia;
| | - Falah Abu
- School of Industrial Technology, Faculty of Applied Sciences, Uitm Shah Alam, Shah Alam 40450, Malaysia; (F.A.); (S.A.); (F.F.); (A.A.K.)
| | - So’bah Ahmad
- School of Industrial Technology, Faculty of Applied Sciences, Uitm Shah Alam, Shah Alam 40450, Malaysia; (F.A.); (S.A.); (F.F.); (A.A.K.)
| | - Fatirah Fadil
- School of Industrial Technology, Faculty of Applied Sciences, Uitm Shah Alam, Shah Alam 40450, Malaysia; (F.A.); (S.A.); (F.F.); (A.A.K.)
| | - Azrena Abdul Karim
- School of Industrial Technology, Faculty of Applied Sciences, Uitm Shah Alam, Shah Alam 40450, Malaysia; (F.A.); (S.A.); (F.F.); (A.A.K.)
| | - Mohd Nurazzi Norizan
- Centre for Defence Foundation Studies, Universiti Pertahanan Nasional Malaysia (UPNM), Kem Perdana Sungai Besi, Kuala Lumpur 57000, Malaysia;
| | - Norshahida Sarifuddin
- Department of Manufacturing and Materials Engineering, International Islamic University Malaysia, Jalan Gombak, Kuala Lumpur 53100, Malaysia;
| | - Mohd Shaiful Zaidi Mat Desa
- Faculty of Chemical Engineering Technology and Process, Universiti Malaysia Pahang, Lebuhraya Tun Razak, Gambang 26300, Malaysia;
| | - Mohd Salahuddin Mohd Basri
- Department of Process and Food Engineering, Faculty of Engineering, Universiti Putra Malaysia, Serdang 43400, Malaysia;
| | - Hayati Samsudin
- Food Technology Division, School of Industrial Technology, Universiti Sains Malaysia, Pulau Pinang 11800, Malaysia;
| | - Luqman Chuah Abdullah
- Department of Chemical and Environmental Engineering, Faculty of Engineering, Universiti Putra Malaysia, Serdang 43400, Malaysia;
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Vembu S, Vijayakumar S, Nilavukkarasi M, Vidhya E, Punitha V. Phytosynthesis of TiO2 nanoparticles in diverse applications: What is the exact mechanism of action? SENSORS INTERNATIONAL 2022. [DOI: 10.1016/j.sintl.2022.100161] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
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Nguyen TV, Do TV, Ngo TD, Nguyen TA, Lu LT, Vu QT, Thi LP, Tran DL. Photocurable acrylate epoxy/ZnO–Ag nanocomposite coating: fabrication, mechanical and antibacterial properties. RSC Adv 2022; 12:23346-23355. [PMID: 36090437 PMCID: PMC9382360 DOI: 10.1039/d2ra03546d] [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: 06/08/2022] [Accepted: 07/18/2022] [Indexed: 11/23/2022] Open
Abstract
In this study, a UV-curable acrylate epoxy nanocomposite coating has been prepared by incorporation of ZnO–Ag hybrid nanoparticles. For this purpose, firstly ZnO–Ag hybrid nanoparticles were fabricated by a seed-mediated growth method. Then, these ZnO–Ag hybrid nanoparticles (2 wt%) were added into the UV-curable acrylate resin matrices. The photocuring process of nanocomposite was evaluated by various factors, such as the conversion of acrylate double bonds, pendulum hardness and gel fraction. Under the 4.8 s UV-exposure time for full crosslinking, the obtained data indicated that incorporation of ZnO–Ag nanohybrids into the coating matrix changed the crosslinking process of coating significantly. A mechanical teat indicated that the presence of nanohybrids in photocurable coating matrix enhanced its abrasion resistance from 98.7 to 131.6 L per mil (33.3%). The antibacterial test against E. coli over 7 h indicated that E. coli bacteria were killed totally by nanocomposite coating, whereas it was 2.6 × 104 CFU mL−1 for the neat coating without nanoparticles. ZnO-Ag hybrid nanoparticles were fabricated by seed-mediated growth method and incorporated into the UV-curable acrylate resin matrice to form a composite. This improved the mechanical property of UV-cured coating and exhibited high antibacterial activity against E. coli.![]()
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Affiliation(s)
- Thien Vuong Nguyen
- Institute for Tropical Technology, VAST, 18 Hoang Quoc Viet, Cau Giay, Hanoi, Vietnam
- Graduate University of Science and Technology, VAST, 18 Hoang Quoc Viet, Cau Giay, Hanoi, Vietnam
| | - Truc Vy Do
- Institute for Tropical Technology, VAST, 18 Hoang Quoc Viet, Cau Giay, Hanoi, Vietnam
- Graduate University of Science and Technology, VAST, 18 Hoang Quoc Viet, Cau Giay, Hanoi, Vietnam
| | - Thanh Dung Ngo
- Institute for Tropical Technology, VAST, 18 Hoang Quoc Viet, Cau Giay, Hanoi, Vietnam
- Graduate University of Science and Technology, VAST, 18 Hoang Quoc Viet, Cau Giay, Hanoi, Vietnam
| | - Tuan Anh Nguyen
- Institute for Tropical Technology, VAST, 18 Hoang Quoc Viet, Cau Giay, Hanoi, Vietnam
| | - Le Trong Lu
- Institute for Tropical Technology, VAST, 18 Hoang Quoc Viet, Cau Giay, Hanoi, Vietnam
- Graduate University of Science and Technology, VAST, 18 Hoang Quoc Viet, Cau Giay, Hanoi, Vietnam
| | - Quoc Trung Vu
- Faculty of Chemistry, Hanoi National University of Education, 136 Xuan Thuy, Cau Giay, Hanoi, Vietnam
| | - Lan Pham Thi
- Institute for Tropical Technology, VAST, 18 Hoang Quoc Viet, Cau Giay, Hanoi, Vietnam
| | - Dai Lam Tran
- Institute for Tropical Technology, VAST, 18 Hoang Quoc Viet, Cau Giay, Hanoi, Vietnam
- Graduate University of Science and Technology, VAST, 18 Hoang Quoc Viet, Cau Giay, Hanoi, Vietnam
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Ehsan M, Raja NI, Mashwani ZUR, Ikram M, Zohra E, Zehra SS, Abasi F, Hussain M, Iqbal M, Mustafa N, Ali A. Responses of bimetallic Ag/ZnO alloy nanoparticles and urea on morphological and physiological attributes of wheat. IET Nanobiotechnol 2021; 15:602-610. [PMID: 34695294 PMCID: PMC8675799 DOI: 10.1049/nbt2.12048] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2020] [Revised: 02/10/2021] [Accepted: 02/19/2021] [Indexed: 11/19/2022] Open
Abstract
Wheat (Triticum aestivum L.) is the most important staple food crop globally. According to economic survey 2018-19, agriculture sector of Pakistan grew by 0.85%, with wheat accounting for 8.9% of agriculture and 1.6% of GDP, and its production fell short of the target by 4.9%. Wheat requires beneficial ties to improve its efficiency with the help of modern technology. Nanotechnology modifies conventional agricultural practices as these are stimulating agents for plant growth. Green bimetallic Ag/ZnO alloy nanoparticles (NPs) synthesised from salts reduced by Moringa oleifera and characterised by UV-visible spectroscopy, scanning electron microscopy, and energy-dispersive X-ray spectroscopy are studied herein. Different concentrations of urea and Ag/ZnO alloy NPs were applied exogenously to wheat plants (Pakistan-13 and Galaxy13). A significant effect of 100 mg/L urea and 75 ppm Ag/ZnO alloy NPs was observed on the morphology of wheat, with a maximum increase of 58% plant length, 85% leaf area, 89% plant fresh weight and 76% plant dried weight. In physiological parameters, relative water content and membrane stability index have shown maximum increases of 39% and 77%, while chlorophyll a, b, and total chlorophyll content (TCC) showed maximum increases of 92%, 71%, and 84% respectively. Evidence of the morpho-physiological responses of urea and green synthesised alloy NPs on wheat varieties are reported on.
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Affiliation(s)
- Maria Ehsan
- Department of Botany, PMAS Arid Agriculture University Rawalpindi, Rawalpindi, Pakistan
| | - Naveed Iqbal Raja
- Department of Botany, PMAS Arid Agriculture University Rawalpindi, Rawalpindi, Pakistan
| | | | - Muhammad Ikram
- Department of Botany, PMAS Arid Agriculture University Rawalpindi, Rawalpindi, Pakistan
| | - Efat Zohra
- Department of Botany, PMAS Arid Agriculture University Rawalpindi, Rawalpindi, Pakistan
| | - Syeda Sadaf Zehra
- Department of Botany, The Islamia University of Bahawalpur, Bahawakpur, Pakistan
| | - Fozia Abasi
- Department of Botany, PMAS Arid Agriculture University Rawalpindi, Rawalpindi, Pakistan
| | - Mubashir Hussain
- Department of Botany, PMAS Arid Agriculture University Rawalpindi, Rawalpindi, Pakistan
| | - Muhammad Iqbal
- Department of Botany, PMAS Arid Agriculture University Rawalpindi, Rawalpindi, Pakistan
| | - Nilofar Mustafa
- Department of Botany, PMAS Arid Agriculture University Rawalpindi, Rawalpindi, Pakistan
| | - Asad Ali
- Department of Botany, PMAS Arid Agriculture University Rawalpindi, Rawalpindi, Pakistan
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El-Hamshary H, El-Naggar ME, Khattab TA, El-Faham A. Preparation of Multifunctional Plasma Cured Cellulose Fibers Coated with Photo-Induced Nanocomposite toward Self-Cleaning and Antibacterial Textiles. Polymers (Basel) 2021; 13:polym13213664. [PMID: 34771221 PMCID: PMC8587760 DOI: 10.3390/polym13213664] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2021] [Revised: 10/02/2021] [Accepted: 10/19/2021] [Indexed: 11/16/2022] Open
Abstract
Multifunctional fibrous surfaces with ultraviolet protection, self-cleaning, or antibacterial activity have been highly attractive. Nanocomposites consisting of silver (AgNPs) and titanium dioxide (TiO2 NPs) nanoparticles (Ag/TiO2) were developed and coated onto the surface of viscose fibers employing a straightforward pad-dry-cure procedure. The morphologies and elemental compositions were evaluated by scan electron microscopy (SEM), infrared spectra (FTIR), and energy-dispersion X-ray spectra (EDS). The resultant multifunctional textile materials displayed antibacterial and photo-induced catalytic properties. The photocatalyzed self-cleaning properties were investigated employing the photochemical decay of methylthioninium chloride, whereas the antibacterial properties were studied versus E. coli. The viscose fibers coated with Ag/TiO2 nanocomposite demonstrated improved efficiency compared with viscose fibers coated with pure anatase TiO2 nano-scaled particles.
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Affiliation(s)
- Hany El-Hamshary
- Chemistry Department, College of Science, King Saud University, Riyadh 11451, Saudi Arabia;
- Department of Chemistry, Faculty of Science, Tanta University, Tanta 31527, Egypt
- Correspondence: (H.E.-H.); (M.E.E.-N.)
| | - Mehrez E. El-Naggar
- Textile Research Division, National Research Center (Affiliation ID: 60014618), Cairo 12622, Egypt;
- Correspondence: (H.E.-H.); (M.E.E.-N.)
| | - Tawfik A. Khattab
- Textile Research Division, National Research Center (Affiliation ID: 60014618), Cairo 12622, Egypt;
| | - Ayman El-Faham
- Chemistry Department, College of Science, King Saud University, Riyadh 11451, Saudi Arabia;
- Department of Chemistry, Faculty of Science, Alexandria University, Ibrahimia, Alexandria 21321, Egypt
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Antibacterial Activity of TiO2 Nanoparticles Prepared by One-Step Laser Ablation in Liquid. APPLIED SCIENCES-BASEL 2021. [DOI: 10.3390/app11104623] [Citation(s) in RCA: 41] [Impact Index Per Article: 13.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Laser ablation in liquid was utilized to prepare a TiO2 NP suspension in in deionized distilled water using Q-switch Nd: YAG laser at various laser energies and ablation times. The samples were characterized using UV–visible absorption spectra obtained with a UV–visible spectrophotometer (UV-Vis,) Fourier transform infrared (FTIR), X-ray diffraction (XRD), and transmission electron microscope (TEM). While, UV-Vis spectra showed the characteristic band-to-band absorption peak of TiO2 NPs in the UV range. FTIR analysis showed the existence of O-Ti-O bond. XRD patterns indicated the presence of (101) and (112) plane crystalline phases of TiO2. TEM images showed a spherical-like structure of TiO2 NPs with various size distributions depending on the ablation period. It was also found that there is a relationship between laser ablation time and TiO2 NP size distribution, where longer ablation times led to the smaller size distribution. The antibacterial activity of TiO2 NPs was evaluated with different species of bacteria such as Escherichia coli, Pseudomonas aeruginosa, Proteus vulgaris, and Staphylococcus aureus, using the liquid approach. The optimum activity of TiO2 NPs is found to be against E. coli at 1000 μg mL−1. Furthermore, adding, TiO2 NPs (1000 μg mL−1) in the presence of amoxicillin has a synergic effect on E. coli and S. aureus growth, as measured by the well diffusion method. However, both E. coli (11.6 ± 0.57mm) and S. aureus (13.3 ± 0.57mm) were inhibited by this process.
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31
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Photocatalytic activity and antibacterial efficacy of titanium dioxide nanoparticles mediated by Myristica fragrans seed extract. Chem Phys Lett 2021. [DOI: 10.1016/j.cplett.2021.138527] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
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Spirescu VA, Chircov C, Grumezescu AM, Vasile BȘ, Andronescu E. Inorganic Nanoparticles and Composite Films for Antimicrobial Therapies. Int J Mol Sci 2021; 22:4595. [PMID: 33925617 PMCID: PMC8123905 DOI: 10.3390/ijms22094595] [Citation(s) in RCA: 58] [Impact Index Per Article: 19.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2021] [Revised: 04/23/2021] [Accepted: 04/26/2021] [Indexed: 02/06/2023] Open
Abstract
The development of drug-resistant microorganisms has become a critical issue for modern medicine and drug discovery and development with severe socio-economic and ecological implications. Since standard and conventional treatment options are generally inefficient, leading to infection persistence and spreading, novel strategies are fundamentally necessary in order to avoid serious global health problems. In this regard, both metal and metal oxide nanoparticles (NPs) demonstrated increased effectiveness as nanobiocides due to intrinsic antimicrobial properties and as nanocarriers for antimicrobial drugs. Among them, gold, silver, copper, zinc oxide, titanium oxide, magnesium oxide, and iron oxide NPs are the most preferred, owing to their proven antimicrobial mechanisms and bio/cytocompatibility. Furthermore, inorganic NPs can be incorporated or attached to organic/inorganic films, thus broadening their application within implant or catheter coatings and wound dressings. In this context, this paper aims to provide an up-to-date overview of the most recent studies investigating inorganic NPs and their integration into composite films designed for antimicrobial therapies.
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Affiliation(s)
- Vera Alexandra Spirescu
- Department of Science and Engineering of Oxide Materials and Nanomaterials, University Politehnica of Bucharest, 011061 Bucharest, Romania; (V.A.S.); (C.C.); (B.Ș.V.); (E.A.)
| | - Cristina Chircov
- Department of Science and Engineering of Oxide Materials and Nanomaterials, University Politehnica of Bucharest, 011061 Bucharest, Romania; (V.A.S.); (C.C.); (B.Ș.V.); (E.A.)
| | - Alexandru Mihai Grumezescu
- Department of Science and Engineering of Oxide Materials and Nanomaterials, University Politehnica of Bucharest, 011061 Bucharest, Romania; (V.A.S.); (C.C.); (B.Ș.V.); (E.A.)
- Research Institute of the University of Bucharest—ICUB, University of Bucharest, 050657 Bucharest, Romania
| | - Bogdan Ștefan Vasile
- Department of Science and Engineering of Oxide Materials and Nanomaterials, University Politehnica of Bucharest, 011061 Bucharest, Romania; (V.A.S.); (C.C.); (B.Ș.V.); (E.A.)
| | - Ecaterina Andronescu
- Department of Science and Engineering of Oxide Materials and Nanomaterials, University Politehnica of Bucharest, 011061 Bucharest, Romania; (V.A.S.); (C.C.); (B.Ș.V.); (E.A.)
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Abstract
This article is devoted to TiO2/ZnO nanocomposites’ creation by modifying with the commercial TiO2/P90 product using the impregnation method and identifying the effect of the ZnO modifier on its adsorption, structural, photocatalytic, and electrical properties. The synthesized TiO2/ZnO nanocomposites were characterized by XRD, XRF, XPS, and low-temperature nitrogen adsorption-desorption methods. As a result, nanostructured TiO2/ZnO composites with the ZnO content of 2, 5, 10, and 15% were obtained. It was shown that the phase composition of TiO2/P90 does not change during the nanocomposite synthesis. XPS studies of TiO2/ZnO nanocomposites indicated the presence of Ti4+, Zn2+, O2−, and OH states on their surface, which is associated with TiO2, ZnO, and hydroxide ions. The nitrogen adsorption-desorption method showed that the commercial TiO2/P90 sample is nonporous, and all TiO2/ZnO nanocomposites are characterized by almost the same homogeneous mesoporous structure. Experimentally established sorption and photocatalytic properties depend on the specific surface area and electrostatic interaction with dyes. The effect of the ZnO modifier on I-V characteristics of the TiO2/P90 sample was revealed. The obtained experimental data showed that the TiO2/P90 sample contains one type of current carriers, and TiO2/2ZnO and TiO2/5ZnO nanocomposites are characterized by two types of current carriers.
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Bhardwaj D, Singh R. Green biomimetic synthesis of Ag-TiO 2 nanocomposite using Origanum majorana leaf extract under sonication and their biological activities. BIORESOUR BIOPROCESS 2021; 8:1. [PMID: 38650216 PMCID: PMC10973754 DOI: 10.1186/s40643-020-00357-z] [Citation(s) in RCA: 37] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2020] [Accepted: 12/21/2020] [Indexed: 12/12/2022] Open
Abstract
BACKGROUND Studies of plant extract-mediated synthesis of nanoparticles is extensively explored and studied in recent time due to eco-friendly, cost-effectiveness and minimal use of toxic chemicals for synthesis. In this study, the synthesis of Ag-TiO2 nanocomposites (NCs) was carried out using Origanum majorana leaf extract under ultrasound irradiation. Origanum majorana leaf extract plays an important role as reducing and capping agent in synthesis of Ag-TiO2 nanocomposites (NCs). The antimicrobial activities of synthesised Ag-TiO2 NCs have been studied against Gram-positive and Gram-negative bacteria. In addition to this, the antioxidant activity of green Ag-TiO2 NCs was also evaluated on the basis of free radical scavenging activity against 1,1-diphenyl-2-picrylhydrazyl (DPPH), 2,2'-azino-bis(3-ethylbenzthiazoline-6-sulfonic acid (ABTS), and hydrogen peroxide free radicals. RESULTS Green-synthesised Ag-TiO2 NCs were successfully characterised on the basis of UV-Vis spectrophotometer, Fourier transform infrared (FT-IR) spectroscopy, X-ray diffraction analysis (XRD), scanning electron microscopy energy-dispersive X-ray spectroscopy (SEM-EDS) and transmission electron microscopy (TEM). The results revealed the spherical shape of nanocomposite with an average size 25-50 nm. The synthesised Ag-TiO2 NCs have showed significant antimicrobial activity against Escherichia coli, Bacillus subtilis and Aspergillus niger in comparison to TiO2 nanoparticles (NPs). The antioxidant evaluation of biomimetic synthesised Ag-TiO2 NCs also exhibited strong activity than TiO2 NPs and comparable to standard. CONCLUSION Green-synthesized Ag-TiO2 NCs provide a promising approach that can satisfy the requirement of large-scale industrial production bearing the advantage of low cost, eco-friendly and reproducible.
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Affiliation(s)
- Diksha Bhardwaj
- Department of Chemistry, School of Basic Sciences, Jaipur National University, 302017, Jaipur, Rajasthan, India
| | - Ruby Singh
- Department of Chemistry, School of Basic Sciences, Jaipur National University, 302017, Jaipur, Rajasthan, India.
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Kumar P, Mathpal MC, Inwati GK, Ghosh S, Kumar V, Roos WD, Swart HC. Optical and surface properties of Zn doped CdO nanorods and antimicrobial applications. Colloids Surf A Physicochem Eng Asp 2020. [DOI: 10.1016/j.colsurfa.2020.125369] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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The photodynamic antimicrobial chemotherapy of Stapphylococcus aureus using an asymmetrical zinc phthalocyanine conjugated to silver and iron oxide based nanoparticles. J Photochem Photobiol A Chem 2020. [DOI: 10.1016/j.jphotochem.2020.112813] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
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37
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TiO2@ZnO nanocomposites decorated with gold nanoparticles: Synthesis, characterization and their antifungal, antibacterial, anti-inflammatory and anticancer activities. INORG CHEM COMMUN 2020. [DOI: 10.1016/j.inoche.2020.108210] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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38
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Zgura I, Enculescu M, Istrate C, Negrea R, Bacalum M, Nedelcu L, Barbinta-Patrascu ME. Performant Composite Materials Based on Oxide Semiconductors and Metallic Nanoparticles Generated from Cloves and Mandarin Peel Extracts. NANOMATERIALS 2020; 10:nano10112146. [PMID: 33126507 PMCID: PMC7693827 DOI: 10.3390/nano10112146] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/08/2020] [Revised: 10/21/2020] [Accepted: 10/26/2020] [Indexed: 12/21/2022]
Abstract
In this work, the metal and semiconducting nanoparticles (AgNPs, ZnONPs and AgZnONPs) were phyto-synthesized using aqueous vegetal extracts from: Caryophyllus aromaticus L. (cloves) and Citrus reticulata L. (mandarin) peels. The morphological, structural, compositional, optical and biological properties (antibacterial activity, and cytotoxicity) of the prepared composites were investigated. The most effective sample proved to be AgZnONPs, derived from cloves, with a minimum inhibitory concentration (MIC) value of 0.11 mg/mL and a minimum bactericidal concentration (MBC) value of 2.68 mg/mL. All the other three composites inhibited bacterial growth at a concentration between 0.25 mg/mL and 0.37 mg/mL, with a bactericidal concentration between 3 mg/mL and 4 mg/mL. The obtained composites presented biocidal activity against Staphylococcus aureus, and biocompatibility (on human fibroblast BJ cells) and did not damage the human red blood cells. Additionally, an important result is that the presence of silver in composite materials improved the bactericidal action of these nanomaterials against the most common nosocomial pathogen, Staphylococcus aureus.
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Affiliation(s)
- Irina Zgura
- National Institute of Materials Physics, Atomistilor 405A, 077125 Magurele, Romania; (M.E.); (C.I.); (R.N.); (L.N.)
- Correspondence: (I.Z.); (M.E.B.-P.)
| | - Monica Enculescu
- National Institute of Materials Physics, Atomistilor 405A, 077125 Magurele, Romania; (M.E.); (C.I.); (R.N.); (L.N.)
| | - Cosmin Istrate
- National Institute of Materials Physics, Atomistilor 405A, 077125 Magurele, Romania; (M.E.); (C.I.); (R.N.); (L.N.)
| | - Raluca Negrea
- National Institute of Materials Physics, Atomistilor 405A, 077125 Magurele, Romania; (M.E.); (C.I.); (R.N.); (L.N.)
| | - Mihaela Bacalum
- Horia Hulubei National Institute for Physics and Nuclear Engineering (IFIN-HH), Department of Life and Environmental Physics, 077125 Bucharest-Magurele, Romania;
| | - Liviu Nedelcu
- National Institute of Materials Physics, Atomistilor 405A, 077125 Magurele, Romania; (M.E.); (C.I.); (R.N.); (L.N.)
| | - Marcela Elisabeta Barbinta-Patrascu
- Faculty of Physics, University of Bucharest, 405 Atomistilor Street, P.O. Box MG-11, 077125 Bucharest-Magurele, Romania
- Correspondence: (I.Z.); (M.E.B.-P.)
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Shkodenko L, Kassirov I, Koshel E. Metal Oxide Nanoparticles Against Bacterial Biofilms: Perspectives and Limitations. Microorganisms 2020; 8:E1545. [PMID: 33036373 PMCID: PMC7601517 DOI: 10.3390/microorganisms8101545] [Citation(s) in RCA: 103] [Impact Index Per Article: 25.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2020] [Revised: 09/25/2020] [Accepted: 10/02/2020] [Indexed: 12/17/2022] Open
Abstract
At present, there is an urgent need in medicine and industry to develop new approaches to eliminate bacterial biofilms. Considering the low efficiency of classical approaches to biofilm eradication and the growing problem of antibiotic resistance, the introduction of nanomaterials may be a promising solution. Outstanding antimicrobial properties have been demonstrated by nanoparticles (NPs) of metal oxides and their nanocomposites. The review presents a comparative analysis of antibiofilm properties of various metal oxide NPs (primarily, CuO, Fe3O4, TiO2, ZnO, MgO, and Al2O3 NPs) and nanocomposites, as well as mechanisms of their effect on plankton bacteria cells and biofilms. The potential mutagenicity of metal oxide NPs and safety problems of their wide application are also discussed.
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Affiliation(s)
- Liubov Shkodenko
- Microbiology Lab of SCAMT Institute, ITMO University, Lomonosova st. 9, 191002 St. Petersburg, Russia; (L.S.); (I.K.)
| | - Ilia Kassirov
- Microbiology Lab of SCAMT Institute, ITMO University, Lomonosova st. 9, 191002 St. Petersburg, Russia; (L.S.); (I.K.)
- Department of Epidemiology, Pasteur Institute, 197101 St. Petersburg, Russia
| | - Elena Koshel
- Microbiology Lab of SCAMT Institute, ITMO University, Lomonosova st. 9, 191002 St. Petersburg, Russia; (L.S.); (I.K.)
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Harun NH, Mydin RBSMN, Sreekantan S, Saharudin KA, Basiron N, Seeni A. The bactericidal potential of LLDPE with TiO2/ZnO nanocomposites against multidrug resistant pathogens associated with hospital acquired infections. JOURNAL OF BIOMATERIALS SCIENCE-POLYMER EDITION 2020; 31:1757-1769. [DOI: 10.1080/09205063.2020.1775759] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Affiliation(s)
- Nor Hazliana Harun
- Oncological and Radiological Sciences Cluster, Advanced Medical and Dental Institute, Universiti Sains Malaysia, Kepala Batas, Pulau Pinang, Malaysia
| | - Rabiatul Basria S. M. N Mydin
- Oncological and Radiological Sciences Cluster, Advanced Medical and Dental Institute, Universiti Sains Malaysia, Kepala Batas, Pulau Pinang, Malaysia
- Department of Biological Sciences, National University of Singapore, Singapore, Singapore
| | - Srimala Sreekantan
- School of Materials and Mineral Resources Engineering, Universiti Sains Malaysia, Nibong Tebal, Pulau Pinang, Malaysia
| | - Khairul Arifah Saharudin
- School of Materials and Mineral Resources Engineering, Universiti Sains Malaysia, Nibong Tebal, Pulau Pinang, Malaysia
- Qdos Interconnect Sdn. Bhd, George Town, Pulau Pinang, Malaysia
| | - Norfatehah Basiron
- School of Materials and Mineral Resources Engineering, Universiti Sains Malaysia, Nibong Tebal, Pulau Pinang, Malaysia
| | - Azman Seeni
- Integrative Medicine Cluster, Advanced Medical and Dental Institute, Universiti Sains Malaysia, Kepala Batas, Pulau Pinang, Malaysia
- Malaysian Institute of Pharmaceuticals and Nutraceuticals (IPHARM), National Institute of Biotechnology Malaysia, Ministry of Science, Technology and Innovation, Gelugor, Pulau Pinang, Malaysia
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Nayak S, Prasad SR, Mandal D, Das P. Carbon dot cross-linked polyvinylpyrrolidone hybrid hydrogel for simultaneous dye adsorption, photodegradation and bacterial elimination from waste water. JOURNAL OF HAZARDOUS MATERIALS 2020; 392:122287. [PMID: 32066019 DOI: 10.1016/j.jhazmat.2020.122287] [Citation(s) in RCA: 41] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/28/2019] [Revised: 02/10/2020] [Accepted: 02/11/2020] [Indexed: 05/08/2023]
Abstract
The creation of a polymeric hydrogel from polyvinylpyrrolidone (PVP) cross-linked by Carbon Quantum Dots (CD) for the adsorption and photocatalytic degradation of both cationic and anionic dyes. PVP, an important biocompatible constituent and often surplus in cosmetic industry, was carboxylated through NaOH refluxing and covalently conjugated to surface amine functionality of CD derived from lemon juice and Cysteamine. The hybrid hydrogel was obtained from PVP-CD covalent conjugate by careful manipulation of pH and found to possess better rheological properties than only carboxylate-PVP. The monolayer physisorption of the dyes on the hydrogel was affected by hydrogen bonding, dispersion or inductive effect, and π-π interaction with the polymer backbone as well as the CD that followed pseudo-second-order kinetics. Degradation of the adsorbed dyes was instated by the unique Reactive Oxygen Species (ROS) generating ability of the CD embedded in the hydrogel matrix upon exposure to sunlight, the mechanism of which is also unveiled. The same CD-induced ROS was found to effectively annihilate both gram-positive and gram-negative bacteria in real polluted water in less than 10 min of photoexcitation of the hydrogel. The hydrogel was restored by mild acid wash that is able to perform dye adsorption and photo-degradation upto four cycles.
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Affiliation(s)
- Suman Nayak
- Department of Chemistry, Indian Institute of Technology Patna, Patna, 801103, Bihar, India
| | - Surendra Rajit Prasad
- National Institute of Pharmaceutical Education and Research, Hajipur, 844102, Bihar, India
| | - Debabrata Mandal
- National Institute of Pharmaceutical Education and Research, Hajipur, 844102, Bihar, India
| | - Prolay Das
- Department of Chemistry, Indian Institute of Technology Patna, Patna, 801103, Bihar, India.
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MHD Effects on Ciliary-Induced Peristaltic Flow Coatings with Rheological Hybrid Nanofluid. COATINGS 2020. [DOI: 10.3390/coatings10020186] [Citation(s) in RCA: 41] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Present theoretical investigation is a mathematical illustration of an application to endoscopy by incorporating hybrid nanoparticles and an induced magnetic field with a rheological fluid model for more realistic results. Rheological fluid behavior is characterized by the Ostwald-de-Waele power-law model. A hybrid nanofluid mechanism is considered comprising platelet-shaped nanoparticles since nanoparticles are potential drug transportation tools in biomedical applications. Moreover, ciliary activity is encountered regarding their extensive applications in performing complex functions along with buoyancy effects. An endoscope is inserted inside a ciliated tube and peristalsis occurred due to ciliary activity in the gap between tube and endoscope. A non-Newtonian model is developed by mathematical formulation which is tackled analytically using homotopy analysis. The outcomes are interpreted graphically along with the pressure rise and streamlining configuration for the case of negligible inertial forces and long wavelength. A three-dimensional graphical interpretation of axial velocity is studied as well. Moreover, tables are prepared and displayed for a more physical insight.
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Wagutu AW, Yano K, Sato K, Park E, Iso Y, Isobe T. Musa AAA and Jatropha curcas L. sap mediated TiO2 nanoparticles: Synthesis and characterization. SCIENTIFIC AFRICAN 2019. [DOI: 10.1016/j.sciaf.2019.e00203] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
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A C-Doped TiO2/Fe3O4 Nanocomposite for Photocatalytic Dye Degradation under Natural Sunlight Irradiation. JOURNAL OF COMPOSITES SCIENCE 2019. [DOI: 10.3390/jcs3030075] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Magnetically recyclable C-doped TiO2/Fe3O4 (C-TiO2/Fe3O4) nanocomposite was successfully synthesized via a sol–gel method. The synthesized samples were characterized using SEM, energy-dispersive X-ray spectroscopy (EDS), FTIR, and UV-VIS diffuse reflectance spectroscopy (DRS) techniques. The results clearly showed that a C-TiO2/Fe3O4 nanocomposite was produced. The photocatalytic activities of the prepared pristine (TiO2), C-doped TiO2 (C-TiO2) and C-TiO2/Fe3O4 were evaluated by the photodegradation of methyl orange (MO) under natural sunlight. The effect of catalyst loading and MO concentration were studied and optimized. The C-TiO2/Fe3O4 nanocomposite exhibited an excellent photocatalytic activity (99.68%) that was higher than the TiO2 (55.41%) and C-TiO2 (70%) photocatalysts within 150 min. The magnetic nanocomposite could be easily recovered from the treated solution by applying external magnetic field. The C-TiO2/Fe3O4 composite showed excellent photocatalytic performance for four consecutive photocatalytic reactions. Thus, this work could provide a simple method for the mass production of highly photoactive and stable C-TiO2/Fe3O4 photocatalyst for environmental remediation.
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