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Baysal G. Sustainable polylactic acid spunlace nonwoven fabrics with lignin/zinc oxide/water-based polyurethane composite coatings. Int J Biol Macromol 2024; 254:127678. [PMID: 38287583 DOI: 10.1016/j.ijbiomac.2023.127678] [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: 08/25/2023] [Revised: 10/21/2023] [Accepted: 10/24/2023] [Indexed: 01/31/2024]
Abstract
In this paper, polylactic acid spunlace nonwoven fabrics were coated with lignin/zinc oxide/water-based polyurethane composite formulations, including five different ratios of lignin and zinc oxide, via a film applicator and thermally cured. The coated and thermally cured nonwoven fabrics were tested in terms of color values, tensile strength, abrasion resistance, ultraviolet protection, hydrophobicity, antibacterial activity, air, and vapor permeability properties. Characterization studies were conducted by FTIR, DSC, TGA, XRD, and SEM. The ultraviolet protection factor of 215.47 and a water contact angle of 90.27° were obtained with the fabric coated with WPU-1:5 formulation. Nonwoven fabric coated with the WPU-1:5 formulation showed evident antibacterial activity against S. aureus and E. coli bacteria as 89 % and 100 %, respectively. With the addition of lignin/ZnO into water-based polyurethane coating paste, PLA nonwoven fabric exhibited improved antibacterial activity, tensile strength, abrasion resistance, and ultraviolet light protection performance. However, composite coatings decreased air and vapor permeability and hydrophobicity of fabrics, but acceptable results were obtained. The results indicate that polylactic acid nonwoven fabrics, when treated with lignin/ZnO/WPU composite coatings, exhibit enhanced mechanical and functional properties, rendering them promising for applications in protective medical textiles.
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Affiliation(s)
- Gülçin Baysal
- Eskişehir Technical University Rectorate, 26555 Eskişehir, Turkey.
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2
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Jia D, Lin Y, Zou Y, Zhang Y, Yu Q. Recent Advances in Dual-Function Superhydrophobic Antibacterial Surfaces. Macromol Biosci 2023; 23:e2300191. [PMID: 37265089 DOI: 10.1002/mabi.202300191] [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: 05/04/2023] [Revised: 05/31/2023] [Indexed: 06/03/2023]
Abstract
Bacterial adhesion and subsequent biofilm formation on the surfaces of synthetic materials imposes a significant burden in various fields, which can lead to infections in patients or reduce the service life of industrial devices. Therefore, there is increasing interest in imbuing surfaces with antibacterial properties. Bioinspired superhydrophobic surfaces with high water contact angles (>150°) exhibit excellent surface repellency against contaminations, thereby preventing initial bacterial adhesion and inhibiting biofilm formation. However, conventional superhydrophobic surfaces typically lack long-term durability and are incapable of achieving persistent efficacy against bacterial adhesion. To overcome these limitations, in recent decades, dual-function superhydrophobic antibacterial surfaces with both bacteria-repelling and bacteria-killing properties have been developed by introducing bactericidal components. These surfaces have demonstrated improved long-term antibacterial performance in addressing the issues associated with surface-attached bacteria. This review summarizes the recent advancements of these dual-function superhydrophobic antibacterial surfaces. First, a brief overview of the fabrication strategies and bacteria-repelling mechanism of superhydrophobic surfaces is provided and then the dual-function superhydrophobic antibacterial surfaces are classified into three types based on the bacteria-killing mechanism: i) mechanotherapy, ii) chemotherapy, and iii) phototherapy. Finally, the limitations and challenges of current research are discussed and future perspectives in this promising area are proposed.
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Affiliation(s)
- Dongxu Jia
- Department of Cardiovascular Surgery of the First Affiliated Hospital and Institute for Cardiovascular Science, Suzhou Medical College of Soochow University, Soochow University, Suzhou, 215000, P. R. China
- State and Local Joint Engineering Laboratory for Novel Functional Polymeric Materials, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou, 215123, P. R. China
| | - Yuancheng Lin
- State and Local Joint Engineering Laboratory for Novel Functional Polymeric Materials, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou, 215123, P. R. China
| | - Yi Zou
- State and Local Joint Engineering Laboratory for Novel Functional Polymeric Materials, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou, 215123, P. R. China
| | - Yanxia Zhang
- Department of Cardiovascular Surgery of the First Affiliated Hospital and Institute for Cardiovascular Science, Suzhou Medical College of Soochow University, Soochow University, Suzhou, 215000, P. R. China
| | - Qian Yu
- State and Local Joint Engineering Laboratory for Novel Functional Polymeric Materials, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou, 215123, P. R. China
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Qiao D, Zhang T, Tang M. Autophagy regulation by inorganic, organic, and organic/inorganic hybrid nanoparticles: Organelle damage, regulation factors, and potential pathways. J Biochem Mol Toxicol 2023; 37:e23429. [PMID: 37409715 DOI: 10.1002/jbt.23429] [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: 08/11/2022] [Revised: 03/30/2023] [Accepted: 06/12/2023] [Indexed: 07/07/2023]
Abstract
The rapid development of nanotechnology requires a more thorough understanding of the potential health effects caused by nanoparticles (NPs). As a programmed cell death, autophagy is one of the biological effects induced by NPs, which maintain intracellular homeostasis by degrading damaged organelles and removing aggregates of defective proteins through lysosomes. Currently, autophagy has been shown to be associated with the development of several diseases. A significant number of research have demonstrated that most NPs can regulate autophagy, and their regulation of autophagy is divided into induction and blockade. Studying the autophagy regulation by NPs will facilitate a more comprehensive understanding of the toxicity of NPs. In this review, we will illustrate the effects of different types of NPs on autophagy, including inorganic NPs, organic NPs, and organic/inorganic hybrid NPs. The potential mechanisms by which NPs regulate autophagy are highlighted, including organelle damage, oxidative stress, inducible factors, and multiple signaling pathways. In addition, we list the factors influencing NPs-regulated autophagy. This review may provide basic information for the safety assessment of NPs.
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Affiliation(s)
- Dong Qiao
- Key Laboratory of Environmental Medicine Engineering of Ministry of Education, School of Public Health, Southeast University, Nanjing, Jiangsu, China
| | - Ting Zhang
- Key Laboratory of Environmental Medicine Engineering of Ministry of Education, School of Public Health, Southeast University, Nanjing, Jiangsu, China
| | - Meng Tang
- Key Laboratory of Environmental Medicine Engineering of Ministry of Education, School of Public Health, Southeast University, Nanjing, Jiangsu, China
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4
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Shaban M. Fabrication of ZnO/ZnAl 2O 4/Au Nanoarrays through DC Electrodeposition Utilizing Nanoporous Anodic Alumina Membranes for Environmental Application. NANOMATERIALS (BASEL, SWITZERLAND) 2023; 13:2667. [PMID: 37836308 PMCID: PMC10574107 DOI: 10.3390/nano13192667] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/06/2023] [Revised: 09/21/2023] [Accepted: 09/22/2023] [Indexed: 10/15/2023]
Abstract
In this study, anodic aluminum oxide membranes (AAOMs) and Au-coated AAOMs (AAOM/Au) with pore diameters of 55 nm and inter-pore spacing of 100 nm are used to develop ZnO/AAOM and ZnO/ZnAl2O4/Au nanoarrays of different morphologies. The effects of the electrodeposition current, time, barrier layer, and Au coating on the morphology of the resultant nanostructures were investigated using field emission scanning electron microscopy. Energy dispersive X-ray and X-ray diffraction were used to analyze the structural parameters and elemental composition of the ZnO/ZnAl2O4/Au nanoarray, and the Kirkendall effect was confirmed. The developed ZnO/ZnAl2O4/Au electrode was applied to remove organic dyes from aqueous solutions, including methylene blue (MB) and methyl orange (MO). Using a 3 cm2 ZnO/ZnAl2O4/Au sample, the 100% dye removal for 20 ppm MB and MO dyes at pH 7 and 25 °C was achieved after approximately 50 and 180 min, respectively. According to the kinetics analysis, the pseudo-second-order model controls the dye adsorption onto the sample surface. AAOM/Au and ZnO/ZnAl2O4/Au nanoarrays are also used as pH sensor electrodes. The sensing capability of AAOM/Au showed Nernstian behavior with a sensitivity of 65.1 mV/pH (R2 = 0.99) in a wide pH range of 2-9 and a detection limit of pH 12.6, whereas the ZnO/ZnAl2O4/Au electrode showed a slope of 40.1 ± 1.6 mV/pH (R2 = 0.996) in a pH range of 2-6. The electrode's behavior was more consistent with non-Nernstian behavior over the whole pH range under investigation. The sensitivity equation was given by V(mV) = 482.6 + 372.6 e-0.2095 pH at 25 °C with R2 = 1.0, which could be explained in terms of changes in the surface charge during protonation and deprotonation.
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Affiliation(s)
- Mohamed Shaban
- Department of Physics, Faculty of Science, Islamic University of Madinah, Madinah 42351, Saudi Arabia
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Khamis M, Gouda GA, Nagiub AM. Biosynthesis approach of zinc oxide nanoparticles for aqueous phosphorous removal: physicochemical properties and antibacterial activities. BMC Chem 2023; 17:99. [PMID: 37587477 PMCID: PMC10428629 DOI: 10.1186/s13065-023-01012-2] [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: 12/03/2022] [Accepted: 08/01/2023] [Indexed: 08/18/2023] Open
Abstract
In this study, phosphorus (PO43--P) is removed from water samples using zinc oxide nanoparticles (ZnO NPs). These nanoparticles are produced easily, quickly, and sustainably using Onion extracts (Allium cepa) at an average crystallite size of 8.13 nm using the Debye-Scherrer equation in the hexagonal wurtzite phase. The characterization and investigation of bio-synthesis ZnO NPs were carried out. With an initial concentration of 250 mg/L of P, the effects of the adsorbent dose, pH, contact time, and temperature were examined. At pH = 3 and T = 300 K, ZnO NPs achieved the optimum sorption capacity of 84 mg/g, which was superior to many other adsorbents. The isothermal study was found to fit the Langmuir model at a monolayer capacity of 89.8 mg/g, and the kinetic study was found to follow the pseudo-second-order model. The adsorption process was verified to be endothermic and spontaneous by thermodynamic characteristics. As a result of their low cost as an adsorbent and their high metal absorption, ZnO NPs were found to be the most promising sorbent in this investigation and have the potential to be used as effective sorbents for the removal of P from aqueous solutions. The antimicrobial activity results showed that ZnO NPs concentration had greater antibacterial activity than conventional Cefotaxime, which was utilized as a positive control in the inhibitory zone. However, no inhibitory zone was visible in the controlled wells that had been supplemented with onion extract and DMSO.
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Affiliation(s)
- Mona Khamis
- Department of Chemistry, Faculty of Science, Al-Azhar University, Assiut, 71524, Egypt
| | - Gamal A Gouda
- Department of Chemistry, Faculty of Science, Al-Azhar University, Assiut, 71524, Egypt.
| | - Adham M Nagiub
- Department of Chemistry, Faculty of Science, Al-Azhar University, Assiut, 71524, Egypt
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Verma J, Geng Y, Wang J, Goel S. Fabrication and testing of a multifunctional SiO 2@ZnO core-shell nanospheres incorporated polymer coating for sustainable marine transport. Sci Rep 2023; 13:12321. [PMID: 37516738 PMCID: PMC10387051 DOI: 10.1038/s41598-023-39423-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2023] [Accepted: 07/25/2023] [Indexed: 07/31/2023] Open
Abstract
We report the development of a coating system relying on the incorporation of SiO2@ZnO core-shell nanospheres in polyurethane media as a novel approach to achieve longevity and sustainability in marine transport. This polymeric coating showed significant improvement in surface abrasion resistance, the transition from a hydrophilic state to a hydrophobic state (~ 125.2° ± 2°), improved antifungal, antibacterial and antialgae effects which make the proposed coating ideal to protect steel surfaces against biofouling. To substantiate our claims, we performed X-ray diffraction, Transmission electron microscopy, Fourier transform infrared spectroscopy, scanning acoustic microscopy, Thermogravimetric analysis (TGA), contact angle measurements, antimicrobial (antialgal, antibacterial, antifungal) tests and Taber abrasion tests (ASTM D1044 and D4060) to highlight the mechanical and biological functionality as well as the bonding configuration of this coating. The wear analysis of the Taber abraded coating using SEM and optical microscopy showed significant improvement in the adhesion and shear resistance achieved by the SiO2@ZnO core-shell nanospheres incorporated PU coating which was a contrasting feature compared to using PU alone. The overall investigations we performed led us to find out that the addition of 4% (wt.) SiO2@ZnO core-shell nanoparticles to the PU media deposited on the low carbon steel surface demonstrated remarkable antimicrobial performance with almost no bacterial growth, significant reductions in growth for algae to about 90% and fungus to about 95%.
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Affiliation(s)
- Jaya Verma
- School of Engineering, London South Bank University, London, SE1 0 AA, UK
| | - Yanquan Geng
- Center for Precision Engineering, Harbin Institute of Technology, Harbin, 150001, Heilongjiang, China
| | - Jiqiang Wang
- Center for Precision Engineering, Harbin Institute of Technology, Harbin, 150001, Heilongjiang, China
| | - Saurav Goel
- School of Engineering, London South Bank University, London, SE1 0 AA, UK.
- Department of Mechanical Engineering, University of Petroleum and Energy Studies, Dehradun, 248007, India.
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Mohammadipour-Nodoushan R, Shekarriz S, Shariatinia Z, Heydari A, Montazer M. Improved cotton fabrics properties using zinc oxide-based nanomaterials: A review. Int J Biol Macromol 2023; 242:124916. [PMID: 37276903 DOI: 10.1016/j.ijbiomac.2023.124916] [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: 03/27/2023] [Revised: 05/05/2023] [Accepted: 05/13/2023] [Indexed: 06/07/2023]
Abstract
Zinc oxide nanoparticles (ZnO NPs) have gained significant attention in the textile industry for their ability to enhance the physicochemical properties of fabrics. In recent years, there has been a growing focus on the development of ZnO-based nanomaterials and their applications for cotton and other fabrics. This review paper provides an overview of the synthesis and diverse applications of ZnO-based nanomaterials for textile fabrics, including protection against UV irradiation, bacteria, fungi, microwave, electromagnetic radiation, water, and fire. Furthermore, the study offers the potential of these materials in energy harvesting applications, such as wearable pressure sensors, piezoelectric nanogenerators, supercapacitors, and human energy harvesting. Additionally, we discuss the potential of ZnO-based nanomaterials for environmental cleaning, including water, oil, and solid cleaning. The current research in this area has focused on various materials used to prepare ZnO-based nanocomposites, such as metals/nonmetals, semiconductors, metal oxides, carbon materials, polymers, MXene, metal-organic frameworks, and layered double hydroxides. The findings of this review highlight the potential of ZnO-based nanomaterials to improve the performance of textile fabrics in a range of applications, and the importance of continued research in this field to further advance the development and use of ZnO-based nanomaterials in the textile industry.
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Affiliation(s)
- Roya Mohammadipour-Nodoushan
- Color and Polymer Research Centre, Amirkabir University of Technology (Tehran Polytechnic), 15875-4413 Tehran, Iran
| | - Shahla Shekarriz
- Color and Polymer Research Centre, Amirkabir University of Technology (Tehran Polytechnic), 15875-4413 Tehran, Iran.
| | - Zahra Shariatinia
- Department of Chemistry, Amirkabir University of Technology (Tehran Polytechnic), 15875-4413 Tehran, Iran.
| | - Abolfazl Heydari
- Polymer Institute of the Slovak Academy of Sciences, Dúbravská cesta 9, 845 41 Bratislava, Slovakia
| | - Majid Montazer
- Department of Textile Engineering, Amirkabir University of Technology (Tehran Polytechnic), 15875-4413 Tehran, Iran
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8
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Shao X, Wang J, Liu Z, Hu N, Zhang R, Quan C, Yao X, Dong C. Nano-copper ions assembled cellulose-based composite with antibacterial activity for biodegradable personal protective mask. Front Chem Sci Eng 2023:1-11. [PMID: 37359290 PMCID: PMC10225283 DOI: 10.1007/s11705-022-2288-2] [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: 08/14/2022] [Accepted: 12/01/2022] [Indexed: 06/28/2023]
Abstract
The current SARS-CoV-2 pandemic has resulted in the widespread use of personal protective equipment, particularly face masks. However, the use of commercial disposable face masks puts great pressure on the environment. In this study, nano-copper ions assembled cotton fabric used in face masks to impart antibacterial activity has been discussed. To produce the nanocomposite, the cotton fabric was modified by sodium chloroacetate after its mercerization, and assembled with bactericidal nano-copper ions (about 10.61 mg·g-1) through electrostatic adsorption. It demonstrated excellent antibacterial activity against Staphylococcus aureus and Escherichia coli because the gaps between fibers in the cotton fabric allow the nano-copper ions to be fully released. Moreover, the antibacterial efficiency was maintained even after 50 washing cycles. Furthermore, the face mask constructed with this novel nanocomposite upper layer exhibited a high particle filtration efficiency (96.08% ± 0.91%) without compromising the air permeability (28.9 min·L-1). This green, economical, facile, and scalable process of depositing nano-copper ions onto modified cotton fibric has great potential to reduce disease transmission, resource consumption, and environmental impact of waste, while also expanding the range of protective fabrics.
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Affiliation(s)
- Xinyi Shao
- College of Bioresources Chemical and Materials Engineering, Shaanxi University of Science & Technology, Xi’an, 710021 China
| | - Jian Wang
- College of Bioresources Chemical and Materials Engineering, Shaanxi University of Science & Technology, Xi’an, 710021 China
- National Demonstration Center for Experimental Light Chemistry Engineering Education, Shaanxi University of Science & Technology, Xi’an, 710021 China
| | - Zetan Liu
- College of Bioresources Chemical and Materials Engineering, Shaanxi University of Science & Technology, Xi’an, 710021 China
| | - Na Hu
- College of Bioresources Chemical and Materials Engineering, Shaanxi University of Science & Technology, Xi’an, 710021 China
| | - Ruimin Zhang
- College of Bioresources Chemical and Materials Engineering, Shaanxi University of Science & Technology, Xi’an, 710021 China
| | - Cailin Quan
- College of Bioresources Chemical and Materials Engineering, Shaanxi University of Science & Technology, Xi’an, 710021 China
| | - Xinjie Yao
- College of Bioresources Chemical and Materials Engineering, Shaanxi University of Science & Technology, Xi’an, 710021 China
| | - Cuihua Dong
- State Key Laboratory of Biobased Material and Green Papermaking, Qilu University of Technology, Shandong Academy of Sciences, Jinan, 250353 China
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9
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Krasanakis F, Chatzaki TM, Chrissopoulou K, Anastasiadis SH. Modifying flexible polymer films towards superhydrophobicity and superoleophobicity by utilizing water-based nanohybrid coatings. NANOSCALE 2023; 15:6984-6998. [PMID: 36974833 DOI: 10.1039/d2nr06780c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/18/2023]
Abstract
The development of superhydrophobic and/or superoleophobic materials has been attracting the attention of the scientific community due to their wide range of applications. In this work, waterborne nanocomposite coatings were developed to be deposited onto flexible polyethylene films in order to modify them into superhydrophobic and even superoleophobic. The coatings consisted of either a low surface energy mixture of silanes/siloxanes or a fluoropolymer in conjunction with the appropriate inorganic nanoparticles that provide the necessary roughness; the effects of nanoparticle type and content on the behaviour was investigated. In both cases, the surface properties were investigated, and the polymer films were found to be superhydrophobic. Depending on the system utilized, the final material exhibited either low water adhesion, thus, being water repellent, or high water adhesion. The use of the fluoropolymer has led to coatings that exhibited superoleophobic behaviour for various organic compounds, as well. The application of the coatings did not influence either the optical transparency or the thermal properties of the polyethylene films. Moreover, the coated surfaces show similar or even better mechanical properties, scratch resistance and chemical durability in comparison to the neat LDPE film.
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Affiliation(s)
- Fanourios Krasanakis
- Institute of Electronic Structure and Laser, Foundation for Research and Technology-Hellas, 711 10 Heraklion, Crete, Greece.
| | - Thaleia-Michaela Chatzaki
- Institute of Electronic Structure and Laser, Foundation for Research and Technology-Hellas, 711 10 Heraklion, Crete, Greece.
- Department of Chemistry, University of Crete, 710 03 Heraklion, Crete, Greece
| | - Kiriaki Chrissopoulou
- Institute of Electronic Structure and Laser, Foundation for Research and Technology-Hellas, 711 10 Heraklion, Crete, Greece.
| | - Spiros H Anastasiadis
- Institute of Electronic Structure and Laser, Foundation for Research and Technology-Hellas, 711 10 Heraklion, Crete, Greece.
- Department of Chemistry, University of Crete, 710 03 Heraklion, Crete, Greece
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Abu Jarad N, Rachwalski K, Bayat F, Khan S, Shakeri A, MacLachlan R, Villegas M, Brown ED, Hosseinidoust Z, Didar TF, Soleymani L. A Bifunctional Spray Coating Reduces Contamination on Surfaces by Repelling and Killing Pathogens. ACS APPLIED MATERIALS & INTERFACES 2023; 15:16253-16265. [PMID: 36926806 DOI: 10.1021/acsami.2c23119] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/18/2023]
Abstract
Surface-mediated transmission of pathogens is a major concern with regard to the spread of infectious diseases. Current pathogen prevention methods on surfaces rely on the use of biocides, which aggravate the emergence of antimicrobial resistance and pose harmful health effects. In response, a bifunctional and substrate-independent spray coating is presented herein. The bifunctional coating relies on wrinkled polydimethylsiloxane microparticles, decorated with biocidal gold nanoparticles to induce a "repel and kill" effect against pathogens. Pathogen repellency is provided by the structural hierarchy of the microparticles and their surface chemistry, whereas the kill mechanism is achieved using functionalized gold nanoparticles embedded on the microparticles. Bacterial tests with methicillin-resistant Staphylococcus aureus and Pseudomonas aeruginosa reveal a 99.9% reduction in bacterial load on spray-coated surfaces, while antiviral tests with Phi6─a bacterial virus often used as a surrogate to SARS-CoV-2─demonstrate a 98% reduction in virus load on coated surfaces. The newly developed spray coating is versatile, easily applicable to various surfaces, and effective against various pathogens, making it suitable for reducing surface contamination in frequently touched, heavy traffic, and high-risk surfaces.
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Affiliation(s)
- Noor Abu Jarad
- School of Biomedical Engineering, McMaster University, 1280 Main Street West, Hamilton L8S 4K1, ON, Canada
| | - Kenneth Rachwalski
- Department of Biochemistry and Biomedical Sciences, McMaster University, 1280 Main Street West, Hamilton L8S 4L7, ON, Canada
| | - Fereshteh Bayat
- School of Biomedical Engineering, McMaster University, 1280 Main Street West, Hamilton L8S 4L7, ON, Canada
| | - Shadman Khan
- School of Biomedical Engineering, McMaster University, 1280 Main Street West, Hamilton L8S 4L7, ON, Canada
| | - Amid Shakeri
- School of Biomedical Engineering, McMaster University, 1280 Main Street West, Hamilton L8S 4L7, ON, Canada
| | - Roderick MacLachlan
- Department of Engineering Physics, McMaster University, 1280 Main Street West, Hamilton L8S 4L7, ON, Canada
| | - Martin Villegas
- School of Biomedical Engineering, McMaster University, 1280 Main Street West, Hamilton L8S 4L7, ON, Canada
| | - Eric D Brown
- Department of Biochemistry and Biomedical Sciences, McMaster University, 1280 Main Street West, Hamilton L8S 4L7, ON, Canada
| | - Zeinab Hosseinidoust
- School of Biomedical Engineering, McMaster University, 1280 Main Street West, Hamilton L8S 4L7, ON, Canada
| | - Tohid F Didar
- School of Biomedical Engineering, McMaster University, 1280 Main Street West, Hamilton L8S 4K1, ON, Canada
- School of Biomedical Engineering, McMaster University, 1280 Main Street West, Hamilton L8S 4L7, ON, Canada
- School of Biomedical Engineering, Department of Mechanical Engineering, Michael G. DeGroote Institute for Infectious Disease Research, McMaster University, Hamilton L8S 4L7, Canada
| | - Leyla Soleymani
- School of Biomedical Engineering, McMaster University, 1280 Main Street West, Hamilton L8S 4K1, ON, Canada
- Department of Engineering Physics, McMaster University, 1280 Main Street West, Hamilton L8S 4L7, ON, Canada
- School of Biomedical Engineering and Department of Engineering Physics, Michael G. DeGroote Institute for Infectious Disease Research, McMaster University, Hamilton L8S 4L7, Canada
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11
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Nature-Inspired Surface Structures Design for Antimicrobial Applications. Int J Mol Sci 2023; 24:ijms24021348. [PMID: 36674860 PMCID: PMC9865960 DOI: 10.3390/ijms24021348] [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: 11/22/2022] [Revised: 12/30/2022] [Accepted: 01/08/2023] [Indexed: 01/13/2023] Open
Abstract
Surface contamination by microorganisms such as viruses and bacteria may simultaneously aggravate the biofouling of surfaces and infection of wounds and promote cross-species transmission and the rapid evolution of microbes in emerging diseases. In addition, natural surface structures with unique anti-biofouling properties may be used as guide templates for the development of functional antimicrobial surfaces. Further, these structure-related antimicrobial surfaces can be categorized into microbicidal and anti-biofouling surfaces. This review introduces the recent advances in the development of microbicidal and anti-biofouling surfaces inspired by natural structures and discusses the related antimicrobial mechanisms, surface topography design, material application, manufacturing techniques, and antimicrobial efficiencies.
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12
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Eckelt F, Rothweiler P, Braun F, Voss L, Šarić A, Vrankić M, Lützenkirchen-Hecht D. In Situ Observation of ZnO Nanoparticle Formation by a Combination of Time-Resolved X-ray Absorption Spectroscopy and X-ray Diffraction. MATERIALS (BASEL, SWITZERLAND) 2022; 15:8186. [PMID: 36431670 PMCID: PMC9699227 DOI: 10.3390/ma15228186] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/20/2022] [Revised: 11/07/2022] [Accepted: 11/15/2022] [Indexed: 06/16/2023]
Abstract
The formation of ZnO nanomaterials from different Zn acetylacetonate precursor solutions was studied in situ by employing simultaneous, time-resolved X-ray diffraction (XRD) and X-ray absorption spectroscopy (EXAFS) at the Zn K-edge. The precursor solutions were heated from room temperature to the desired reaction temperatures in a hermetically sealed cell dedicated to X-ray experiments. In general, the first indications for the formation of hexagonal ZnO were found for elevated temperatures of about 80 °C both by XRD and EXAFS, and the contributions increase with temperature and time. However, no reaction intermediates could be proved in addition to the Zn precursors and the formed hexagonal ZnO materials. Furthermore, the results show that the efficiency of the reaction, i.e., the conversion of the precursor material to the ZnO product, strongly depends on the solvent used and the reaction temperature. ZnO formation is accelerated by an increased temperature of 165 °C and the use of 1-octanol, with a conversion to ZnO of more than 80% after only a ca. 35 min reaction time according to a detailed analysis of the EXAFS data. For comparison, an identical concentration of Zn acetylacetonate in water or dilute alkaline NaOH solutions and a reaction temperature of around 90 °C leads to a smaller conversion of approximately 50% only, even after several hours of reaction. The particle size determined from XRD for different orientations shows a preferred orientation along the c-direction of the hexagonal crystal system, as well in accordance with scanning electron microscopy. The LaMer model explained this highly non-uniform growth of needle-like ZnO crystallites.
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Affiliation(s)
- Franz Eckelt
- Faculty of Natural Sciences, University of Wuppertal, Gauss-Str. 20, 42119 Wuppertal, Germany
| | - Patrick Rothweiler
- Faculty of Natural Sciences, University of Wuppertal, Gauss-Str. 20, 42119 Wuppertal, Germany
| | - Frederic Braun
- Faculty of Natural Sciences, University of Wuppertal, Gauss-Str. 20, 42119 Wuppertal, Germany
| | - Lukas Voss
- Faculty of Natural Sciences, University of Wuppertal, Gauss-Str. 20, 42119 Wuppertal, Germany
| | - Ankica Šarić
- Centre of Excellence for Advanced Materials and Sensing Devices, Division of Materials Physics, Ruđer Bošković Institute, HR-10002 Zagreb, Croatia
| | - Martina Vrankić
- Centre of Excellence for Advanced Materials and Sensing Devices, Division of Materials Physics, Ruđer Bošković Institute, HR-10002 Zagreb, Croatia
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Preparation and evaluation of the antimicrobial activity of sodium alginate-grafted diphenylamine embedded with silver nanoparticles. Polym Bull (Berl) 2022. [DOI: 10.1007/s00289-022-04505-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
AbstractAntibiotic nanocomposite polymers show great promise in treating a variety of pathogens that cause widespread disease. Sodium alginate-grafted diphenylamine (NaAlg-g-DPA) embedded with different ratios of silver nanoparticles (AgNPs) was fabricated and characterized through different techniques including FTIR, XRD, and SEM techniques for investigating the antimicrobial activity. XRD confirmed the crystallinity of these compounds, and the average crystal size of Na Alg-g-DPA/Ag was estimated to be 48.6 nm. Then it was applied as an antimicrobial agent and evaluated through two ways (inhibition zone and MIC techniques) against Staphylococcus aureus as gram-positive bacteria with an inhibition zone of 19.31.6 mm and 18.60.63 mm against Escherichia coli as gram-negative bacteria while with increasing the Ag ratio 2:1 there was an enhancement in their biological activity to be 21.90.69 mm against Staphylococcus aureus and with an inhibition zone of 21.32.1 mm against Escherichia coli. The outcomes of this investigation are important for the development of new composite materials with antibacterial properties for industrial applications.
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14
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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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15
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Microbial Mediated Synthesis of Zinc Oxide Nanoparticles, Characterization and Multifaceted Applications. J Inorg Organomet Polym Mater 2022. [DOI: 10.1007/s10904-022-02406-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
Abstract
AbstractNanoparticles have gained considerable importance compared to bulk counterparts due to their unique properties. Due to their high surface to volume ratio and high reactivity, metallic and metal-oxide nanostructures have shown great potential applications. Among them, zinc oxide nanoparticles (ZnONPs) have gained tremendous attention attributed to their unique properties such as low toxicity, biocompatibility, simplicity, easy fabrication, and environmental friendly. Remarkably, ZnONPs exhibit optical, physical, antimicrobial, anticancer, anti-inflammatory and wound healing properties. These nanoparticles have been applied in various fields such as in biomedicine, biosensors, electronics, food, cosmetic industries, textile, agriculture and environment. The synthesis of ZnONPs can be performed by chemical, physical and biological methods. Although the chemical and physical methods suffer from some disadvantages such as the involvement of high temperature and pressure conditions, high cost and not environmentally friendly, the green synthesis of ZnONPs offers a promising substitute to these conventional methods. On that account, the microbial mediated synthesis of ZnONPs is clean, eco-friendly, nontoxic and biocompatible method. This paper reviews the microbial synthesis of ZnONPs, parameters used for the optimization process and their physicochemical properties. The potential applications of ZnONPs in biomedical, agricultural and environmental fields as well as their toxic aspects on human beings and animals have been reviewed.
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16
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Bio-Assisted Synthesis and Characterization of Zinc Oxide Nanoparticles from Lepidium sativum and Their Potent Antioxidant, Antibacterial and Anticancer Activities. Biomolecules 2022; 12:biom12060855. [PMID: 35740980 PMCID: PMC9221242 DOI: 10.3390/biom12060855] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2022] [Revised: 06/13/2022] [Accepted: 06/17/2022] [Indexed: 12/04/2022] Open
Abstract
Nanotechnology is an emerging area of research that deals with the production, manipulation, and application of nanoscale materials. Bio-assisted synthesis is of particular interest nowadays, to overcome the limitations associated with the physical and chemical means. The aim of this study was to synthesize ZnO nanoparticles (NPs) for the first time, utilizing the seed extract of Lepidium sativum. The synthesized NPs were confirmed through various spectroscopy and imagining techniques, such as XRD, FTIR, HPLC, and SEM. The characterized NPs were then examined for various in vitro biological assays. Crystalline, hexagonal-structured NPs with an average particle size of 25.6 nm were obtained. Biosynthesized ZnO NPs exhibited potent antioxidant activities, effective α-amylase inhibition, moderate urease inhibition (56%), high lipase-inhibition (71%) activities, moderate cytotoxic potential, and significant antibacterial activity. Gene expression of caspase in HepG2 cells was enhanced along with elevated production of ROS/RNS, while membrane integrity was disturbed upon the exposure of NPs. Overall results indicated that bio-assisted ZnO NPs exhibit excellent biological potential and could be exploited for future biomedical applications. particularly in antimicrobial and cancer therapeutics. Moreover, this is the first comprehensive study on Lepidium sativum-mediated synthesis of ZnO nanoparticles and evaluation of their biological activities.
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17
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Gutiérrez Rodelo C, Salinas RA, Armenta JaimeArmenta E, Armenta S, Galdámez-Martínez A, Castillo-Blum SE, Astudillo-de la Vega H, Nirmala Grace A, Aguilar-Salinas CA, Gutiérrez Rodelo J, Christie G, Alsanie WF, Santana G, Thakur VK, Dutt A. Zinc associated nanomaterials and their intervention in emerging respiratory viruses: Journey to the field of biomedicine and biomaterials. Coord Chem Rev 2022; 457:214402. [PMID: 35095109 PMCID: PMC8788306 DOI: 10.1016/j.ccr.2021.214402] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2021] [Accepted: 12/30/2021] [Indexed: 12/16/2022]
Abstract
Respiratory viruses represent a severe public health risk worldwide, and the research contribution to tackle the current pandemic caused by the SARS-CoV-2 is one of the main targets among the scientific community. In this regard, experts from different fields have gathered to confront this catastrophic pandemic. This review illustrates how nanotechnology intervention could be valuable in solving this difficult situation, and the state of the art of Zn-based nanostructures are discussed in detail. For virus detection, learning from the experience of other respiratory viruses such as influenza, the potential use of Zn nanomaterials as suitable sensing platforms to recognize the S1 spike protein in SARS-CoV-2 are shown. Furthermore, a discussion about the antiviral mechanisms reported for ZnO nanostructures is included, which can help develop surface disinfectants and protective coatings. At the same time, the properties of Zn-based materials as supplements for reducing viral activity and the recovery of infected patients are illustrated. Within the scope of noble adjuvants to improve the immune response, the ZnO NPs properties as immunomodulators are explained, and potential prototypes of nanoengineered particles with metallic cations (like Zn2+) are suggested. Therefore, using Zn-associated nanomaterials from detection to disinfection, supplementation, and immunomodulation opens a wide area of opportunities to combat these emerging respiratory viruses. Finally, the attractive properties of these nanomaterials can be extrapolated to new clinical challenges.
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Affiliation(s)
- Citlaly Gutiérrez Rodelo
- Healthcare Business and Computer Technology, Mexico
- Nanopharmacia Diagnostica, Tlaxcala No. 146/705, Col. Roma Sur, Cuauhtémoc, Cuidad de México, C.P. 06760, Mexico
| | - Rafael A Salinas
- Centro de Investigación en Biotecnología Aplicada del Instituto Politécnico Nacional (CIBA-IPN), Tlaxcala 72197, Mexico
| | - Erika Armenta JaimeArmenta
- Facultad de Química, Universidad Nacional Autónoma de México, Ciudad Universitaria, Coyoacán, DF 04510, México
| | - Silvia Armenta
- Department of Biology, McGill University, 3649 Sir William Osler, Montreal, QC H3G 0B1, Canada
| | - Andrés Galdámez-Martínez
- Instituto de Investigaciones en Materiales, Universidad Nacional Autónoma de México, Coyoacan, México City, C.P. 04510, Mexico
| | - Silvia E Castillo-Blum
- Facultad de Química, Universidad Nacional Autónoma de México, Ciudad Universitaria, Coyoacán, DF 04510, México
| | - Horacio Astudillo-de la Vega
- Healthcare Business and Computer Technology, Mexico
- Nanopharmacia Diagnostica, Tlaxcala No. 146/705, Col. Roma Sur, Cuauhtémoc, Cuidad de México, C.P. 06760, Mexico
| | - Andrews Nirmala Grace
- Centre for Nanotechnology Research, VIT University, Vellore, Tamil Nadu 632 014, India
| | - Carlos A Aguilar-Salinas
- Unidad de Investigación de Enfermedades Metabólicas y Dirección de Nutrición. Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán, Mexico
| | - Juliana Gutiérrez Rodelo
- Instituto Méxicano del Seguro Social, Hospital General de SubZona No. 4, C.P. 80370, Navolato, Sinaloa, México
| | - Graham Christie
- Institute of Biotechnology, Department of Chemical Engineering and Biotechnology, University of Cambridge, Cambridge CB2 1QT, UK
| | - Walaa F Alsanie
- Department of Clinical Laboratories Sciences, The Faculty of Applied Medical Sciences, Taif University, P.O. Box 11099, Taif 21944, Saudi Arabia
| | - Guillermo Santana
- Instituto de Investigaciones en Materiales, Universidad Nacional Autónoma de México, Coyoacan, México City, C.P. 04510, Mexico
| | - Vijay Kumar Thakur
- Biorefining and Advanced Materials Research Center, SRUC, Edinburgh EH9 3JG, UK
- Department of Mechanical Engineering, School of Engineering, Shiv Nadar University, Uttar Pradesh 201314, India
- School of Engineering, University of Petroleum & Energy Studies (UPES), Dehradun 248007, Uttarakhand, India
| | - Ateet Dutt
- Instituto de Investigaciones en Materiales, Universidad Nacional Autónoma de México, Coyoacan, México City, C.P. 04510, Mexico
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18
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Preparation of Cotton-Zinc Composites by Magnetron Sputtering Metallization and Evaluation of their Antimicrobial Properties and Cytotoxicity. MATERIALS 2022; 15:ma15082746. [PMID: 35454445 PMCID: PMC9026216 DOI: 10.3390/ma15082746] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/08/2022] [Revised: 03/24/2022] [Accepted: 03/28/2022] [Indexed: 01/27/2023]
Abstract
The aim of this investigation was to evaluate the biological properties of cotton-zinc composites. A coating of zinc (Zn) on a cotton fabric was successfully obtained by a DC magnetron sputtering system using a metallic Zn target (99.9%). The new composite was characterized using scanning electron microscopy/energy-dispersive X-ray spectroscopy (SEM/EDS), UV/Vis transmittance, and atomic absorption spectrometry with flame excitation (FAAS). The composite was tested for microbial activity against colonies of Gram-positive (Staphylococcus aureus) and Gram-negative (Escherichia coli) bacteria and antifungal activity against Aspergillus niger and Chaetomium globosum fungal mold species as model microorganisms. Cytotoxicity screening of the tested modified material was carried out on BALB/3T3 clone mouse fibroblasts. The SEM/EDS and FAAS tests showed good uniformity of zinc content on a large surface of the composite. The conducted research showed the possibility of using the magnetron sputtering technique as a zero-waste method for producing antimicrobial textile composites.
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19
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Wang Z, Paul S, Stein LH, Salemi A, Mitra S. Recent Developments in Blood-Compatible Superhydrophobic Surfaces. Polymers (Basel) 2022; 14:polym14061075. [PMID: 35335407 PMCID: PMC8953528 DOI: 10.3390/polym14061075] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2022] [Revised: 02/22/2022] [Accepted: 02/24/2022] [Indexed: 01/17/2023] Open
Abstract
Superhydrophobic surfaces, as indicated in the name, are highly hydrophobic and readily repel water. With contact angles greater than 150° and sliding angles less than 10°, water droplets flow easily and hardly wet these surfaces. Superhydrophobic materials and coatings have been drawing increasing attention in medical fields, especially on account of their promising applications in blood-contacting devices. Superhydrophobicity controls the interactions of cells with the surfaces and facilitates the flowing of blood or plasma without damaging blood cells. The antibiofouling effect of superhydrophobic surfaces resists adhesion of organic substances, including blood components and microorganisms. These attributes are critical to medical applications such as filter membranes, prosthetic heart valves, extracorporeal circuit tubing, and indwelling catheters. Researchers have developed various methods to fabricate blood-compatible or biocompatible superhydrophobic surfaces using different materials. In addition to being hydrophobic, these surfaces can also be antihemolytic, antithrombotic, antibacterial, and antibiofouling, making them ideal for clinical applications. In this review, the authors summarize recent developments of blood-compatible superhydrophobic surfaces, with a focus on methods and materials. The expectation of this review is that it will support the biomedical research field by providing current trends as well as future directions.
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Affiliation(s)
- Zhiqian Wang
- Department of Chemistry and Environmental Science, New Jersey Institute of Technology, 161 Warren Street, Newark, NJ 07102, USA; (Z.W.); (S.P.)
| | - Sumona Paul
- Department of Chemistry and Environmental Science, New Jersey Institute of Technology, 161 Warren Street, Newark, NJ 07102, USA; (Z.W.); (S.P.)
| | - Louis H. Stein
- Northern Department of Cardiothoracic Surgery, RWJBarnabas Health, 201 Lyons Avenue, Suite G5, Newark, NJ 07112, USA; (L.H.S.); (A.S.)
| | - Arash Salemi
- Northern Department of Cardiothoracic Surgery, RWJBarnabas Health, 201 Lyons Avenue, Suite G5, Newark, NJ 07112, USA; (L.H.S.); (A.S.)
- Department of Surgery, Rutgers New Jersey Medical School, 185 S Orange Ave, Newark, NJ 07103, USA
| | - Somenath Mitra
- Department of Chemistry and Environmental Science, New Jersey Institute of Technology, 161 Warren Street, Newark, NJ 07102, USA; (Z.W.); (S.P.)
- Correspondence: ; Tel.: +1-973-596-5611 or +1-973-596-3586
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20
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Bhalla N, Ingle N, Patel H, Jayaprakash A, Patri SV, Kaushik A, Haranath D. A Facile Approach to Fabricate and Embed Multifunctional Nano ZnO into Soap Matrix and Liquid Cleansing Products for Enhanced Antibacterial and Photostability for Health and Hygiene Applications. ARAB J CHEM 2022. [DOI: 10.1016/j.arabjc.2022.103862] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
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21
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Abdel-Tawab H, Ibrahim AM, Hussein T, Mohamed F. Mechanism of action and toxicological evaluation of engineered layered double hydroxide nanomaterials in Biomphalaria alexandrina snails. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2022; 29:11765-11779. [PMID: 34545528 DOI: 10.1007/s11356-021-16332-w] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/04/2021] [Accepted: 08/30/2021] [Indexed: 06/13/2023]
Abstract
Layered double hydroxide (LDH) nanomaterials have recently become immense research area as it is used widely in industries. So, it's chance of their release into natural environment and risk assessment to nontarget aquatic invertebrate increasing. So, the present study aimed to synthesize and confirm the crystalline formation of Co-Cd-Fe LDHs and Co-Cd-Fe/PbI2 (LDH) and then to investigate the toxic impact of the two LDH on the adult freshwater snails (Biomphalaia alexandrina). Results showed that Co-Cd-Fe/PbI2 LDH has more toxic effect to adult Biomphalaria than Co-Cd-Fe LDHs (LC50 was 56.4 and 147.7 mg/L, 72 h of exposure, respectively). The effect of LC25 (117.1 mg/L) of Co-Cd-Fe LDHs exposure on the embryo showed suppression of embryonic development and induced embryo malformation. Also, it showed alterations in the tegmental architectures of the mantle-foot region of B. alexandrina snails as declared in scanning electron micrograph. Also, exposure to this sublethal concentration caused abnormalities in hemocyte shapes and upregulated IL-2 level in soft tissue. In addition, it decreased levels of nonenzymatic reduced glutathione (GSH), catalase (CAT), superoxide dismutase (SOD), caspase-3 activity, and total protein content in significant manner. Glutathione S-transferase (GST) activity was not affected by LDH exposure. It caused histopathological damages in both glands of snails and also caused a genotoxic effect in their cells. The results from the present study indicated that LDH has risk assessment on aquatic B. alexandrina snails and that it can be used as a biological indicator of water pollution with LDH.
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Affiliation(s)
- Heba Abdel-Tawab
- Faculty of Science, Department of Zoology, Beni-Suef University, Beni-Suef, Egypt.
| | - Amina M Ibrahim
- Environmental Research and Medical Malacology Department, Theodor Bilharz Research Institute, Giza, Egypt
| | - Taghreed Hussein
- National Organization for Drug Control and Research, Cairo, Egypt
| | - Fatma Mohamed
- Nanophotonics and Applications (NPA) lab, Polymer Research Laboratory, Chemistry Department, Faculty of Science, Beni-Suef University, Beni-Suef, 62511, Egypt
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22
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Tiwari AK, Mishra A, Pandey G, Gupta MK, Pandey PC. Nanotechnology: A Potential Weapon to Fight against COVID-19. PARTICLE & PARTICLE SYSTEMS CHARACTERIZATION : MEASUREMENT AND DESCRIPTION OF PARTICLE PROPERTIES AND BEHAVIOR IN POWDERS AND OTHER DISPERSE SYSTEMS 2022; 39:2100159. [PMID: 35440846 PMCID: PMC9011707 DOI: 10.1002/ppsc.202100159] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/16/2021] [Revised: 08/28/2021] [Indexed: 05/13/2023]
Abstract
The COVID-19 infections have posed an unprecedented global health emergency, with nearly three million deaths to date, and have caused substantial economic loss globally. Hence, an urgent exploration of effective and safe diagnostic/therapeutic approaches for minimizing the threat of this highly pathogenic coronavirus infection is needed. As an alternative to conventional diagnosis and antiviral agents, nanomaterials have a great potential to cope with the current or even future health emergency situation with a wide range of applications. Fundamentally, nanomaterials are physically and chemically tunable and can be employed for the next generation nanomaterial-based detection of viral antigens and host antibodies in body fluids as antiviral agents, nanovaccine, suppressant of cytokine storm, nanocarrier for efficient delivery of antiviral drugs at infection site or inside the host cells, and can also be a significant tool for better understanding of the gut microbiome and SARS-CoV-2 interaction. The applicability of nanomaterial-based therapeutic options to cope with the current and possible future pandemic is discussed here.
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Affiliation(s)
- Atul K. Tiwari
- Department of ChemistryIndian Institute of Technology (BHU)VaranasiUttar Pradesh221005India
| | - Anupa Mishra
- Department of MicrobiologyDr. R.M.L. Awadh UniversityAyodhyaUttar Pradesh224001India
- Department of MicrobiologySri Raghukul Mahila Vidya PeethCivil Line GondaUttar Pradesh271001India
| | - Govind Pandey
- Department of PaediatricsKing George Medical UniversityLucknowUttar Pradesh226003India
| | - Munesh K. Gupta
- Department of MicrobiologyInstitute of Medical SciencesBanaras Hindu UniversityVaranasiUttar Pradesh221005India
| | - Prem C. Pandey
- Department of ChemistryIndian Institute of Technology (BHU)VaranasiUttar Pradesh221005India
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23
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Shahbazkhany S, Salehi M, Mousavi-Kamazani M, Salarvand Z. Zn 0.94Mn 0.06O for adsorption and photo-degradation of methyl orange dye under visible irradiation: Kinetics and isotherms study. ENVIRONMENTAL RESEARCH 2022; 203:111833. [PMID: 34403667 DOI: 10.1016/j.envres.2021.111833] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/07/2021] [Revised: 07/28/2021] [Accepted: 08/01/2021] [Indexed: 06/13/2023]
Abstract
Three photocatalyst-adsorbents consist of Zn0.97Mn0.03O, Zn0.94Mn0.06O, and Zn0.92Mn0.08O were synthesized by hydrothermal method and calcined at 800 °C. The structural and optical properties of the sample Zn0.94Mn0.06O were characterized by using XRD; TEM; SEM; EDS; DLS; and DRS. The surface of the sample Zn0.94Mn0.06O consists of nano-particles (<100 nm) and nano-holes (18.4 nm), also the band-gap of it was obtained 2.89 eV. Adsorption and photo-degradation of methyl orange (MO) dye was investigated in darkness and under visible light irradiation (200 W tungsten). The sample Zn0.94Mn0.06O showed the most decolorization efficiency in the shortest time, so that 0.15 g of it adsorbed and destroyed the MO dye molecules (99 ± 1 %) in 40 s under irradiation. The most adsorption capacity of Zn0.94Mn0.06O was obtained 30.06 mg/g and the mechanism of the dye adsorption was investigated by using BET analysis and zeta potential. Also the adsorption isotherm and kinetics were calculated for describing the adsorption of MO onto the Zn0.94Mn0.06O.
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Affiliation(s)
| | - Mehdi Salehi
- Department of Chemistry, Faculty of Science, Semnan University, Semnan, Iran.
| | - Mehdi Mousavi-Kamazani
- Department of Nanotechnology, Faculty of New Sciences and Technologies, Semnan University, Semnan, Iran.
| | - Zohreh Salarvand
- Department of Chemistry, Chemistry and Petrochemistry Research Centre, Standard Research Institute(SRI), Karaj, Iran.
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Sultana A, Zare M, Luo H, Ramakrishna S. Surface Engineering Strategies to Enhance the In Situ Performance of Medical Devices Including Atomic Scale Engineering. Int J Mol Sci 2021; 22:11788. [PMID: 34769219 PMCID: PMC8583812 DOI: 10.3390/ijms222111788] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2021] [Revised: 10/14/2021] [Accepted: 10/26/2021] [Indexed: 12/13/2022] Open
Abstract
Decades of intense scientific research investigations clearly suggest that only a subset of a large number of metals, ceramics, polymers, composites, and nanomaterials are suitable as biomaterials for a growing number of biomedical devices and biomedical uses. However, biomaterials are prone to microbial infection due to Escherichia coli (E. coli), Staphylococcus aureus (S. aureus), Staphylococcus epidermidis (S. epidermidis), hepatitis, tuberculosis, human immunodeficiency virus (HIV), and many more. Hence, a range of surface engineering strategies are devised in order to achieve desired biocompatibility and antimicrobial performance in situ. Surface engineering strategies are a group of techniques that alter or modify the surface properties of the material in order to obtain a product with desired functionalities. There are two categories of surface engineering methods: conventional surface engineering methods (such as coating, bioactive coating, plasma spray coating, hydrothermal, lithography, shot peening, and electrophoretic deposition) and emerging surface engineering methods (laser treatment, robot laser treatment, electrospinning, electrospray, additive manufacturing, and radio frequency magnetron sputtering technique). Atomic-scale engineering, such as chemical vapor deposition, atomic layer etching, plasma immersion ion deposition, and atomic layer deposition, is a subsection of emerging technology that has demonstrated improved control and flexibility at finer length scales than compared to the conventional methods. With the advancements in technologies and the demand for even better control of biomaterial surfaces, research efforts in recent years are aimed at the atomic scale and molecular scale while incorporating functional agents in order to elicit optimal in situ performance. The functional agents include synthetic materials (monolithic ZnO, quaternary ammonium salts, silver nano-clusters, titanium dioxide, and graphene) and natural materials (chitosan, totarol, botanical extracts, and nisin). This review highlights the various strategies of surface engineering of biomaterial including their functional mechanism, applications, and shortcomings. Additionally, this review article emphasizes atomic scale engineering of biomaterials for fabricating antimicrobial biomaterials and explores their challenges.
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Affiliation(s)
- Afreen Sultana
- Center for Nanotechnology & Sustainability, Department of Mechanical Engineering, National University of Singapore, Singapore 117581, Singapore; (A.S.); (S.R.)
| | - Mina Zare
- Center for Nanotechnology & Sustainability, Department of Mechanical Engineering, National University of Singapore, Singapore 117581, Singapore; (A.S.); (S.R.)
| | - Hongrong Luo
- Engineering Research Center in Biomaterials, Sichuan University, Chengdu 610064, China
| | - Seeram Ramakrishna
- Center for Nanotechnology & Sustainability, Department of Mechanical Engineering, National University of Singapore, Singapore 117581, Singapore; (A.S.); (S.R.)
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25
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Yu C, Shi K, Ning J, Zheng Z, Yu H, Yang Z, Liu J. Preparation and Application of Fluorine-Free Finishing Agent with Excellent Water Repellency for Cotton Fabric. Polymers (Basel) 2021; 13:2980. [PMID: 34503020 PMCID: PMC8433999 DOI: 10.3390/polym13172980] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2021] [Revised: 08/25/2021] [Accepted: 08/31/2021] [Indexed: 11/16/2022] Open
Abstract
Water repellent is an important functional finish for cotton fabric. However, cotton fabrics often have poor washing resistance and other performances after actual finishing. In this study, based on the structural characteristics of cotton fiber and durability of water repellent, a cross-linked amino long-chain alkyl polysiloxane (CAHPS) was first prepared, and then reacted with modified silica. Finally, a chemically bonded organic-inorganic nanohybrid cross-linked polysiloxane (rSiO2-CAHPS) was fabricated. Furthermore, the rSiO2-CAHPS was emulsified to obtain a durable fluorine-free water repellent. The water repellent finishing for cotton fabric was carried out by the pad-dry-cure process. After finishing, the cotton fabric had good resistance to conventional liquids and excellent washing resistance, and still maintained good water repellency after 30 rounds of soaping. Moreover, properties including air permeability, mechanical property and whiteness are hardly affected after finishing. SEM and XPS characterization show that a layer of dense silicon film is formed on the surface of cotton fabric by rSiO2-CAHPS water repellent. The existence of nanosilica can improve the surface roughness of cotton fibers. The synergistic effect of fiber matrix, nanoparticles and CAHPS endows the fabric with a micro/nano-multi-scale micro-rough structure, which improves the water repellency of cotton fabric after water repellent finishing.
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Affiliation(s)
- Chengbing Yu
- School of Materials Science and Engineering, Shanghai University, Shanghai 201800, China; (K.S.); (Z.Z.); (H.Y.); (Z.Y.)
| | - Kaiqin Shi
- School of Materials Science and Engineering, Shanghai University, Shanghai 201800, China; (K.S.); (Z.Z.); (H.Y.); (Z.Y.)
| | - Jinyan Ning
- Materials Genome Institute, Shanghai University, Shanghai 200444, China;
| | - Zhe Zheng
- School of Materials Science and Engineering, Shanghai University, Shanghai 201800, China; (K.S.); (Z.Z.); (H.Y.); (Z.Y.)
| | - Hualong Yu
- School of Materials Science and Engineering, Shanghai University, Shanghai 201800, China; (K.S.); (Z.Z.); (H.Y.); (Z.Y.)
| | - Zhenxuan Yang
- School of Materials Science and Engineering, Shanghai University, Shanghai 201800, China; (K.S.); (Z.Z.); (H.Y.); (Z.Y.)
| | - Jun Liu
- Shanghai Institute of Quality Inspection and Technical Research, Shanghai 201114, China
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26
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Long-Lasting Photocatalytic and Antimicrobial Activity of Cotton Towels Modified with TiO2 and ZnO Nanoparticles. Catalysts 2021. [DOI: 10.3390/catal11080952] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022] Open
Abstract
This study aimed to evaluate the durability of the photocatalytic and antimicrobial activities of ZnO and TiO2 nanoparticles (NPs)-modified 100% cotton terry textiles. SEM-EDX confirmed the long-lasting durability of the washing materials, and TGA analysis revealed that ZnO and TiO2 NPs can be found on the terry fabric surface; however, the amount of NPs decreased 10 times after 15 washes and 1.6 times after the subsequent 15 washes. The efficiency of self-cleaning properties and antimicrobial activity against five microorganisms (Staphylococcus aureus ATCC 6538, Escherichia coli ATCC 10536, Candida albicans ATCC 10231, Aspergillus niger ATCC 16404, and Bacillus subtilis NCAIM 01644) depended on UVA/B radiation intensity. The increase in UVA/B radiation intensity from 400 to 1400 µW/cm2 significantly increases the effectiveness of photocatalysis. Long-lasting self-cleaning properties characterised the tested fabric; however, stronger photocatalytic efficiency was observed in light with a greater intensity of UVA/B radiation. At the UVA/B radiation intensity of 1400 µW/cm2, a biocidal effect (R = 100%) against all tested microorganisms (E. coli, S. aureus. B. subtilis, C. albicans, and A. niger) was observed on the surface of materials. The lower UVA/B radiation intensity (400 µW/cm2) and 30 wash cycles reduce the antimicrobial activity of the material (R = 65.4–99.4%) for B. subtilis, C. albicans, and A. niger. The antimicrobial activity of washed materials modified with TiO2/ZnO nanoparticles can be increased by irradiation with a light bulb (1400 µW/cm2).
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Li C, Wang C, Li Z, Cao Z, Xie Y, Xue M, Zhao J. Preparation of ZnO Nanoparticle/Acrylic Resin Superhydrophobic Coating via Blending Method and Its Wear Resistance and Antibacterial Properties. MATERIALS 2021; 14:ma14143775. [PMID: 34300692 PMCID: PMC8305409 DOI: 10.3390/ma14143775] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/31/2021] [Revised: 07/01/2021] [Accepted: 07/01/2021] [Indexed: 11/16/2022]
Abstract
Herein, a facile method for the preparation of an acrylic resin-based superhydrophobic coating is provided. Firstly, ZnO nanoparticles were modified with silane to obtain hydrophobic ZnO, which was then homogeneously blended with acrylic resin. Subsequently, the mixture was sprayed on an aluminum sheet to form a cured coating. The surface composition and morphology of the coating were characterized using X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR), and scanning electron microscopy (SEM). The hydrophobicity, wear resistance, and antibacterial properties of the prepared samples were tested. The optimized hydrophobicity was achieved with 10 wt% modification agent and resin-to-ZnO mass ratio of 1:4, exhibiting contact and sliding angles of 168.11° and 7.2°, respectively. Wear resistance was insufficient with a low resin content, while it grew with the increase in the resin content. However, when the resin content was excessively high, the hydrophobicity was reduced because the resin could wrap the modified ZnO nanoparticles and decrease the number of hydrophobic groups on the surface. Compared with the pure acrylic resin coating, the ZnO nanoparticle/acrylic resin superhydrophobic coating demonstrated a significant enhancement in the antibacterial properties.
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Affiliation(s)
- Changquan Li
- School of Materials and Engineering, Jiangsu University of Technology, Changzhou 213001, China; (C.L.); (C.W.); (Z.L.)
- College of Environment and Chemical Engineering, Nanchang Hangkong University, Nanchang 330063, China; (Z.C.); (M.X.)
| | - Chen Wang
- School of Materials and Engineering, Jiangsu University of Technology, Changzhou 213001, China; (C.L.); (C.W.); (Z.L.)
| | - Ziang Li
- School of Materials and Engineering, Jiangsu University of Technology, Changzhou 213001, China; (C.L.); (C.W.); (Z.L.)
| | - Zhenjun Cao
- College of Environment and Chemical Engineering, Nanchang Hangkong University, Nanchang 330063, China; (Z.C.); (M.X.)
| | - Yu Xie
- College of Environment and Chemical Engineering, Nanchang Hangkong University, Nanchang 330063, China; (Z.C.); (M.X.)
- Correspondence: (Y.X.); (J.Z.)
| | - Mingshan Xue
- College of Environment and Chemical Engineering, Nanchang Hangkong University, Nanchang 330063, China; (Z.C.); (M.X.)
| | - Jinsheng Zhao
- College of Chemistry and Chemical Engineering, Liaocheng University, Liaocheng 252059, China
- Correspondence: (Y.X.); (J.Z.)
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Mohamed F, Enaiet Allah A, Abu Al-Ola KA, Shaban M. Design and Characterization of a Novel ZnO-Ag/Polypyrrole Core-Shell Nanocomposite for Water Bioremediation. NANOMATERIALS 2021; 11:nano11071688. [PMID: 34203125 PMCID: PMC8308129 DOI: 10.3390/nano11071688] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/17/2021] [Revised: 05/22/2021] [Accepted: 05/24/2021] [Indexed: 12/17/2022]
Abstract
Incorporating nanostructured metal and metal oxide in a polymer matrix is a strategic way to develop a novel candidate for water bioremediation. In this study, under microwave irradiation, a ZnO–Ag/polypyrrole (PPy) nanocomposite with a core/shell structure was prepared by interfacial polymerization of pyrrole in the presence of ZnO nanoparticles and AgNO3 as an oxidant. The antimicrobial behavior of the ZnO–Ag core combined with the electrical properties of the conducting PPy shell created a special ZnO–Ag/PPy nanocomposite with inherent adsorption behavior and antimicrobial properties. More impressively, the as-prepared ZnO–Ag/PPy displayed enhanced adsorption of Cd2+ and PO43− ions in the mixed solution. At pH 8, it had overall removal efficiencies of 95% and 75% for Cd2+and PO43− ions, respectively. The Freundlich adsorption model, rather than the Langmuir adsorption model, better fits the adsorption isotherm results. The adsorption kinetics also followed the pseudo-second-order kinetic model. Additionally, the engineered nanocomposite demonstrated antifungal activity against different fungi, as well as remarkable antibacterial activity against Gram-negative and Gram-positive bacteria. The synergistic combination of crystallinity, coherence of the ZnO–Ag core in the PPy matrix, and the negative zeta potential all contribute to this nanocomposite’s high efficiency. Our results have significant consequences in the wastewater bioremediation field using a simple operation process.
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Affiliation(s)
- Fatma Mohamed
- Nanophotonics and Applications (NPA) Lab, Physics Department, Faculty of Science, Beni-Suef University, Beni-Suef 62514, Egypt;
- Chemistry Department, Faculty of Science, Beni-Suef University, Beni-Suef 62511, Egypt;
| | - Abeer Enaiet Allah
- Chemistry Department, Faculty of Science, Beni-Suef University, Beni-Suef 62511, Egypt;
| | - Khulood A. Abu Al-Ola
- Department of Chemistry, College of Science, Taibah University, Al-Madinah Al-Munawarah 30002, Saudi Arabia;
| | - Mohamed Shaban
- Nanophotonics and Applications (NPA) Lab, Physics Department, Faculty of Science, Beni-Suef University, Beni-Suef 62514, Egypt;
- Department of Physics, Faculty of Science, Islamic University in Madinah, Al-Madinah Al-Munawarah 42351, Saudi Arabia
- Correspondence:
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Qian X, Gu Z, Tang Q, Hong A, Xu Z, Dai Y, Bian X, Lou H, Mortimer M, Baalousha M, Li L. Chemical transformations of nanoscale zinc oxide in simulated sweat and its impact on the antibacterial efficacy. JOURNAL OF HAZARDOUS MATERIALS 2021; 410:124568. [PMID: 33229268 DOI: 10.1016/j.jhazmat.2020.124568] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/15/2020] [Revised: 10/19/2020] [Accepted: 11/10/2020] [Indexed: 06/11/2023]
Abstract
Nanoscale zinc oxide (n-ZnO) is widely used in personal care products and textiles, thus, it would likely be released into human sweat. To better evaluate the potential human health risks of n-ZnO, it is essential to understand its chemical transformations in physiological solutions, such as human sweat, and the resulting changes in the n-ZnO bioavailability. Here, two types of n-ZnO, ZnO nanoparticles (ZnO-NPs) and nanorod-based ZnO nanospheres (ZnO-NSs) were synthesized and incubated in 3 types of simulated sweat with different pH values and phosphate concentrations. The content of Zn3(PO4)2 in the transformed n-ZnO was quantified by selective dissolution of Zn3(PO4)2 in 0.35 M ammonia solution where 100% and 5.5% of Zn3(PO4)2 and ZnO were dissolved, respectively. The kinetics analysis indicated that by 24-48 h the content of Zn3(PO4)2 reached the maximum, being 15-21% at pH 8.0 and 45-70% at pH 5.5 or 4.3. Interestingly, no correlation was observed between the rate constants of Zn3(PO4)2 formation and the specific surface areas of n-ZnO, implying that chemical transformations from n-ZnO to Zn3(PO4)2 in the simulated sweat might not be simply attributed to dissolution and precipitation. Using a variety of characterization techniques, we demonstrated the formation of a ZnO‒Zn3(PO4)2 core-shell structure with the shell consisting of amorphous Zn3(PO4)2 at pH 8.0 and additionally of crystalline Zn3(PO4)2 and Zn3(PO4)2•4H2O at pH 5.5 or 4.3. The phosphate-induced transformation of n-ZnO in the simulated sweat at pH 5.5 and 4.3 greatly reduced the antibacterial efficacy of n-ZnO through moderating the nanoparticle dissolution, indicating limited bioavailability of the NPs upon transformation. The results improve the understanding of the fate and hazards of n-ZnO.
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Affiliation(s)
- Xiaoting Qian
- Department of Chemistry, Zhejiang Sci-Tech University, Hangzhou 310018, China
| | - Zhouhang Gu
- Key Laboratory of Plant Secondary Metabolism and Regulation of Zhejiang Province, College of Life Sciences and Medicine, Zhejiang Sci-Tech University, Hangzhou 310018, China
| | - Qing Tang
- Department of Chemistry, Zhejiang Sci-Tech University, Hangzhou 310018, China
| | - Aimei Hong
- Department of Chemistry, Zhejiang Sci-Tech University, Hangzhou 310018, China
| | - Zhenlan Xu
- Institute of Quality and Standard of Agro-Products, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, China
| | - Yihong Dai
- Key Laboratory of Plant Secondary Metabolism and Regulation of Zhejiang Province, College of Life Sciences and Medicine, Zhejiang Sci-Tech University, Hangzhou 310018, China
| | - Xinyun Bian
- Department of Chemistry, Zhejiang Sci-Tech University, Hangzhou 310018, China
| | - Haijin Lou
- Department of Chemistry, Zhejiang Sci-Tech University, Hangzhou 310018, China
| | - Monika Mortimer
- Institute of Environmental and Health Sciences, College of Quality and Safety Engineering, China Jiliang University, Hangzhou 310018, China
| | - Mohammed Baalousha
- Center for Environmental Nanoscience and Risk, Department of Environmental Health Sciences, Arnold School of Public Health, University of South Carolina, Columbia 29208, United States
| | - Lingxiangyu Li
- Department of Chemistry, Zhejiang Sci-Tech University, Hangzhou 310018, China.
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Staroń A, Długosz O. Antimicrobial properties of nanoparticles in the context of advantages and potential risks of their use. JOURNAL OF ENVIRONMENTAL SCIENCE AND HEALTH. PART A, TOXIC/HAZARDOUS SUBSTANCES & ENVIRONMENTAL ENGINEERING 2021; 56:680-693. [PMID: 33979267 DOI: 10.1080/10934529.2021.1917936] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/18/2020] [Revised: 04/09/2021] [Accepted: 04/10/2021] [Indexed: 06/12/2023]
Abstract
The popularity of nanotechnology results from the possibility of obtaining materials that have better chemical, electrical, thermal, mechanical, or optical properties. Nano-sized materials are characterized by an increased surface area, which improves their chemical reactivity and mobility. Due to their enhanced reactivity and appropriately small size, some nanoparticles are used as antimicrobial and antifungal agents. Nanoparticles exhibit antimicrobial potential through multifaceted mechanisms. The adhesion of nanoparticles to microbial cells, and reactive oxygen species, and their penetration inside the cells, have been recognized as the most prominent modes of antimicrobial action. This review presents the mechanism of action of nanometals and oxide nanoparticles used as antimicrobials and the mechanisms of bacterial resistance to the toxic effects of nanoparticles. The article presents methods of forming microorganism resistance to the toxic effects of nanoparticles and the negative impact of nanoparticles on human health.
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Affiliation(s)
- Anita Staroń
- Department of Engineering and Chemical Technology, Cracow University of Technology, Cracow, Poland
| | - Olga Długosz
- Department of Engineering and Chemical Technology, Cracow University of Technology, Cracow, Poland
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31
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Chan Y, Wu XH, Chieng BW, Ibrahim NA, Then YY. Superhydrophobic Nanocoatings as Intervention against Biofilm-Associated Bacterial Infections. NANOMATERIALS (BASEL, SWITZERLAND) 2021; 11:1046. [PMID: 33921904 PMCID: PMC8073257 DOI: 10.3390/nano11041046] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/08/2021] [Revised: 03/25/2021] [Accepted: 03/27/2021] [Indexed: 02/07/2023]
Abstract
Biofilm formation represents a significant cause of concern as it has been associated with increased morbidity and mortality, thereby imposing a huge burden on public healthcare system throughout the world. As biofilms are usually resistant to various conventional antimicrobial interventions, they may result in severe and persistent infections, which necessitates the development of novel therapeutic strategies to combat biofilm-based infections. Physicochemical modification of the biomaterials utilized in medical devices to mitigate initial microbial attachment has been proposed as a promising strategy in combating polymicrobial infections, as the adhesion of microorganisms is typically the first step for the formation of biofilms. For instance, superhydrophobic surfaces have been shown to possess substantial anti-biofilm properties attributed to the presence of nanostructures. In this article, we provide an insight into the mechanisms underlying biofilm formation and their composition, as well as the applications of nanomaterials as superhydrophobic nanocoatings for the development of novel anti-biofilm therapies.
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Affiliation(s)
- Yinghan Chan
- Department of Life Sciences, School of Pharmacy, International Medical University (IMU), Bukit Jalil, Kuala Lumpur 57000, Malaysia;
| | - Xun Hui Wu
- School of Postgraduate Studies, International Medical University (IMU), Bukit Jalil, Kuala Lumpur 57000, Malaysia;
| | - Buong Woei Chieng
- Department of Chemistry, Faculty of Science, Universiti Putra Malaysia (UPM), Serdang 43400, Malaysia; (B.W.C.); (N.A.I.)
| | - Nor Azowa Ibrahim
- Department of Chemistry, Faculty of Science, Universiti Putra Malaysia (UPM), Serdang 43400, Malaysia; (B.W.C.); (N.A.I.)
| | - Yoon Yee Then
- Department of Pharmaceutical Chemistry, School of Pharmacy, International Medical University (IMU), Bukit Jalil, Kuala Lumpur 57000, Malaysia
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Lee SY, Chan EL, Chan HH, Li CCK, Ooi ZH, Koh RY, Liew YK. ANTIMICROBIAL AGENTS AND ANTI-ADHESION MATERIALS FOR MEDICAL AND SURGICAL GLOVES. RUBBER CHEMISTRY AND TECHNOLOGY 2021. [DOI: 10.5254/rct.21.79901] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
ABSTRACT
Healthcare-associated infections (HAIs) can be common in healthcare settings, such as the intensive care unit and surgical sites, if proper precautions are not followed. Although traditional techniques are encouraged, such as educating the public and healthcare workers to practice proper handwashing or to double glove, they have not been fully effective in combating HAIs. The use of surface-modified antimicrobial gloves may be an alternative approach to prevent the transmission of pathogens between healthcare workers and patients. This paper gives a comprehensive review of strategies to produce antimicrobial gloves. The chemistry of some potential chemically synthesized antimicrobial agents and nature-inspired superhydrophobic surfaces are discussed. The principles of killing microbes must be understood to effectively select these materials and to design and fabricate surfaces for the reduction of bacterial adhesion. Also, current company trends and technologies are presented for gloves proven to effectively kill bacteria. Such glove use, when coupled with in-depth research on diverse surgical procedures and medical examinations, could ease the burden of HAIs.
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Affiliation(s)
- Siang Yin Lee
- Latex Science and Technology Unit (USTL), Technology and Engineering Division (BTK), RRIM Sungai Buloh Research Station, Malaysian Rubber Board (MRB), 47000 Sungai Buloh, Selangor, Malaysia
| | - E-Lyn Chan
- School of Pharmacy, International Medical University, No. 126, Jalan Jalil Perkasa 19, Bukit Jalil, 57000 Kuala Lumpur, Malaysia
| | - Hong Hao Chan
- School of Postgraduate Studies and Research, International Medical University, No. 126, Jalan Jalil Perkasa 19, Bukit Jalil, 57000 Kuala Lumpur, Malaysia
| | - Claire Chong Khai Li
- School of Health Sciences, International Medical University, No. 126, Jalan Jalil Perkasa 19, Bukit Jalil, 57000 Kuala Lumpur, Malaysia
| | - Zhe Hooi Ooi
- School of Pharmacy, International Medical University, No. 126, Jalan Jalil Perkasa 19, Bukit Jalil, 57000 Kuala Lumpur, Malaysia
| | - Rhun Yian Koh
- School of Health Sciences, International Medical University, No. 126, Jalan Jalil Perkasa 19, Bukit Jalil, 57000 Kuala Lumpur, Malaysia
| | - Yun Khoon Liew
- School of Pharmacy, International Medical University, No. 126, Jalan Jalil Perkasa 19, Bukit Jalil, 57000 Kuala Lumpur, Malaysia
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Mohamed F, Bhnsawy N, Shaban M. Reusability and stability of a novel ternary (Co-Cd-Fe)-LDH/PbI 2 photoelectrocatalytst for solar hydrogen production. Sci Rep 2021; 11:5618. [PMID: 33692427 PMCID: PMC7970923 DOI: 10.1038/s41598-021-85005-y] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2020] [Accepted: 02/08/2021] [Indexed: 11/26/2022] Open
Abstract
The design of highly active and cost-effective photoelectrocatalysts for effective hydrogen generation becomes a mandatory issue due to the demands on sustainable solar fuels. Herein a novel ternary Co-Cd-Fe LDH/PbI2 nanocomposite (T-LDH/PbI2NC) was fabricated by combining strategies of doping and in-situ loading of ternary Co-Cd-Fe LDH. The morphological, structural, and optical properties of PbI2, T-LDH, and T-LDH/PbI2 NC were studied by different techniques. LDH narrows the bandgap of the nanocomposite to 2.53 eV which prolongs the lifetime of the photo-induced electrons. Subsequently, the use of T-LDH/PbI2 NC improves the photoelectrocatalytic (PEC) H2 production rate. T-LDH/PbI2 NC shows a catalytic H2 production rate of 107.53 mmol h-1 cm-2 with IPCE% of 83.8% for 307 nm and 67.3% for 508 nm. The ABPE% reaches its supreme of 4.24% for - 0.58 V and 5.41% for - 0.97 V, these values are the highest values yet for LDH-based photocatalysts. The influences of the operating temperature and monochromatic illumination on the PEC performance were studied. Also, the electrochemical surface area, thermodynamic parameters, and Tafe slopes are calculated to label the hydrogen evolution mechanism. Moreover, the stability and reusability of the T-LDH/PbI2 NC photoelectrode were investigated. This work not only illustrated a simplistic and accessible way to produce a new category of highly efficient photocatalysts compared to the previously reported LDH-based PEC catalysts but also demonstrates a new point of view for improving PEC performance towards industrial water splitting under sunlight irradiation.
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Affiliation(s)
- Fatma Mohamed
- Materials Science Laboratory, Chemistry Department, Faculty of Science, Beni-Suef University, Beni-Suef, 62514, Egypt.
- Nanophotonics and Applications (NPA) Lab, Faculty of Science, Beni-Suef University, Beni-Suef, 62514, Egypt.
| | - Nour Bhnsawy
- Nanophotonics and Applications (NPA) Lab, Faculty of Science, Beni-Suef University, Beni-Suef, 62514, Egypt
| | - Mohamed Shaban
- Nanophotonics and Applications (NPA) Lab, Faculty of Science, Beni-Suef University, Beni-Suef, 62514, Egypt
- Department of Physics, Faculty of Science, Islamic University in Almadinah Almonawara, Almadinah Almonawara, 42351, Saudi Arabia
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Pandey A, Nikam AN, Mutalik SP, Fernandes G, Shreya AB, Padya BS, Raychaudhuri R, Kulkarni S, Prassl R, Subramanian S, Korde A, Mutalik S. Architectured Therapeutic and Diagnostic Nanoplatforms for Combating SARS-CoV-2: Role of Inorganic, Organic, and Radioactive Materials. ACS Biomater Sci Eng 2021; 7:31-54. [PMID: 33371667 PMCID: PMC7783900 DOI: 10.1021/acsbiomaterials.0c01243] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2020] [Accepted: 12/09/2020] [Indexed: 12/19/2022]
Abstract
Although extensive research is being done to combat SARS-CoV-2, we are yet far away from a robust conclusion or strategy. With an increased amount of vaccine research, nanotechnology has found its way into vaccine technology. Researchers have explored the use of various nanostructures for delivering the vaccines for enhanced efficacy. Apart from acting as delivery platforms, multiple studies have shown the application of inorganic nanoparticles in suppressing the growth as well as transmission of the virus. The present review gives a detailed description of various inorganic nanomaterials which are being explored for combating SARS-CoV-2 along with their role in suppressing the transmission of the virus either through air or by contact with inanimate surfaces. The review further discusses the use of nanoparticles for development of an antiviral coating that may decrease adhesion of SARS-CoV-2. A separate section has been included describing the role of nanostructures in biosensing and diagnosis of SARS-CoV-2. The role of nanotechnology in providing an alternative therapeutic platform along with the role of radionuclides in SARS-CoV-2 has been described briefly. Based on ongoing research and commercialization of this nanoplatform for a viral disease, the nanomaterials show the potential in therapy, biosensing, and diagnosis of SARS-CoV-2.
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Affiliation(s)
- Abhijeet Pandey
- Department
of Pharmaceutics, Manipal College of Pharmaceutical
Sciences, Manipal Academy of Higher Education, Manipal-576104, Karnataka, India
| | - Ajinkya N. Nikam
- Department
of Pharmaceutics, Manipal College of Pharmaceutical
Sciences, Manipal Academy of Higher Education, Manipal-576104, Karnataka, India
| | - Sadhana P. Mutalik
- Department
of Pharmaceutics, Manipal College of Pharmaceutical
Sciences, Manipal Academy of Higher Education, Manipal-576104, Karnataka, India
| | - Gasper Fernandes
- Department
of Pharmaceutics, Manipal College of Pharmaceutical
Sciences, Manipal Academy of Higher Education, Manipal-576104, Karnataka, India
| | - Ajjappla Basavaraj Shreya
- Department
of Pharmaceutics, Manipal College of Pharmaceutical
Sciences, Manipal Academy of Higher Education, Manipal-576104, Karnataka, India
| | - Bharath Singh Padya
- Department
of Pharmaceutics, Manipal College of Pharmaceutical
Sciences, Manipal Academy of Higher Education, Manipal-576104, Karnataka, India
| | - Ruchira Raychaudhuri
- Department
of Pharmaceutics, Manipal College of Pharmaceutical
Sciences, Manipal Academy of Higher Education, Manipal-576104, Karnataka, India
| | - Sanjay Kulkarni
- Department
of Pharmaceutics, Manipal College of Pharmaceutical
Sciences, Manipal Academy of Higher Education, Manipal-576104, Karnataka, India
| | - Ruth Prassl
- Gottfried
Schatz Research Centre for Cell Signalling, Metabolism and Aging, Medical University of Graz, 8036 Graz, Austria
| | - Suresh Subramanian
- Radiopharmaceuticals
Division, Bhabha Atomic Research Centre, Mumbai-400094, Maharashtra, India
| | - Aruna Korde
- Radioisotope
Products and Radiation Technology Section, International Atomic Energy Agency, 1400 Vienna, Austria
| | - Srinivas Mutalik
- Department
of Pharmaceutics, Manipal College of Pharmaceutical
Sciences, Manipal Academy of Higher Education, Manipal-576104, Karnataka, India
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Amani A, Montazer M, Mahmoudirad M. Low starch/corn silk/ZnO as environmentally friendly nanocomposites assembling on PET fabrics. Int J Biol Macromol 2020; 170:780-792. [PMID: 33385458 DOI: 10.1016/j.ijbiomac.2020.12.168] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2020] [Revised: 12/21/2020] [Accepted: 12/22/2020] [Indexed: 02/06/2023]
Abstract
Starch is a benign bio-polymeric material with a diversity of desirable functionalities namely biocompatibility and hydrophilicity features. Besides, corn silk with cellulose-protein structure can be used as an available and clean compound for medical applications. Hence, the advantages of both mentioned biocompatible compounds with potentiality to form hydrogel are considered via their combination. Up to now, there is no report on dealing with starch beside corn silk on polyester fabric in the literatures. Herein, low starch/corn silk dual hydrogel was incorporated into nano ZnO functionalized polyester fabric via a one-step simple method. Imparting flame retardant feature with no dripping, antibacterial/antifungal and self-cleaning activities with the enhanced mechanical characteristics are the advantages of the stated approach in this paper. Presence of dual hydrogel on nano ZnO treated polyester fabric helps to significantly improve the cell viability to 129% because of hydrogel feature. Finally, this paper renders a feasible and clean approach for textile functionalization with respect to the both human health issues and environmental observations.
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Affiliation(s)
- Atefeh Amani
- Textile Department, South Tehran Branch, Islamic Azad University, Tehran, Iran
| | - Majid Montazer
- Textile Engineering Department, Functional Fibrous Structures & Environmental Enhancement (FFSEE), Amirkabir Nanotechnology Research Institute (ANTRI), Amirkabir University of Technology, Tehran, Iran.
| | - Mahnaz Mahmoudirad
- Skin Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
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Development of a microbial coating for cellulosic surface using aloe vera and silane. CARBOHYDRATE POLYMER TECHNOLOGIES AND APPLICATIONS 2020. [PMCID: PMC7669238 DOI: 10.1016/j.carpta.2020.100015] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022] Open
Abstract
The highly contagious nature of SARS-CoV-2 (COVID-19) virus has created a havoc effect all over the world in a very short period. The most effective method for precaution of this virus as suggested by WHO is use of PPEs (triple layered face mask, body suits) and social distancing. However, the frontline doctors and medical staff have high risk of exposure to the virus during treatments and removal and discarding of the PPEs. Also the PPEs are of the onetime use and wearing these PPEs in hot and humid seasons is very uncomfortable. A possible solution of this problem is if clothes are anti-bacterial and anti-viral in nature, one single-layered will be sufficient and the spread of virus will also be minimized. Considering this, we have designed a facile and durable anti-wash antimicrobial coating on cloth by aloe vera and hexadecyltrimethoxysilane (HDTMS). In lab scale study, present coating shows good chemical and thermal stability making it reusable multiple times even after repeated washing. The coated cloth reveals the excellent anti-dirt and stain resistance properties leading to complete non-adherence of dirt and stain (e.g. Color, food, ink) on it. Anti-bacterial and anti-fungi properties of the coated cloth were confirmed by doing E. coli (bacteria) and A. Niger (fungus) culture studies, respectively. This coating is imbibed with well-known anti-viral agent aloe vera which inhibits the attachment of the virus on the surface. The water-repellent nature of the coating combined with the use anti-viral agent, aloe vera makes it a potential anti-COVID-19 coating.
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Ahmed A, Mohamed F, Elzanaty AM, Abdel-Gawad OF. Synthesis and characterization of diphenylamine grafted onto sodium alginate for metal removal. Int J Biol Macromol 2020; 167:766-776. [PMID: 33249151 DOI: 10.1016/j.ijbiomac.2020.11.159] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2020] [Revised: 11/22/2020] [Accepted: 11/23/2020] [Indexed: 11/26/2022]
Abstract
A novel grafting polymer was synthesized via grafting of diphenylamine (DPA) onto sodium alginate (NaAlg) as a new adsorbent for Cobalt (Co2+) from aqueous solutions. Optimization of sodium alginate grafted by diphenylamine (NaAlg-g-DPA) was addressed in the current study by several parameters including; initiator and monomer concentrations, contact time of polymerization, as well as polymerization temperature. In addition, the structural and chemical characteristics of NaAlg-g-DPA were explored using different modalities later. The results showed that sodium alginate grafted by diphenylamine (NaAlg-g-DPA) is suitable for adsorbent to removal Co2+ ion. The parameters for the adsorption of Co(II) ions by NaAlg-g-DPA were also determined. It was shown that the samples of NaAlg-g-DPA had given good correlation with Temkins isotherm model and their kinetics followed pseudo-second-order model. It was also observed that the adsorption capacity seemed to be dependent on pH value in solution which showed better results at basic pH. The findings from this research show that NaAlg-g-DPA has capability to remove Co (II) from aqueous solutions.
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Affiliation(s)
- Asmaa Ahmed
- Chemistry Department, Faculty of Science, Beni-Suef University, Beni-Suef 62514, Egypt
| | - Fatma Mohamed
- Nanophotonics and Applications (NPA) Lab, Polymer Research Laboratory, Beni-Suef University, Beni-Suef 62514, Egypt; Chemistry Department, Faculty of Science, Beni-Suef University, Beni-Suef 62514, Egypt
| | - Ali M Elzanaty
- Chemistry Department, Faculty of Science, Beni-Suef University, Beni-Suef 62514, Egypt
| | - Omayma F Abdel-Gawad
- Chemistry Department, Faculty of Science, Beni-Suef University, Beni-Suef 62514, Egypt.
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Shahbazkhany S, Salehi M, Mousavi-Kamazani M, Salarvand Z. WITHDRAWN: Synthesis 6%Mn/ZnO as super-rapid-adsorbent-photocatalyst (SRAP): remove azo dyes in darkness and under visible light, adsorption isotherms and kinetics study. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY B-BIOLOGY 2020; 211:112007. [PMID: 32916585 DOI: 10.1016/j.jphotobiol.2020.112007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/13/2020] [Accepted: 08/19/2020] [Indexed: 11/30/2022]
Affiliation(s)
| | - Mehdi Salehi
- Department of Chemistry, Faculty of Science, Semnan University, Semnan, Iran.
| | | | - Zohreh Salarvand
- Department of Chemistry, Chemistry and Petrochemistry Research Centre, Standard Research Institute(SRI), Karaj, Iran, P.O. Box: 3174734563
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Durable easy-cleaning and antibacterial cotton fabrics using fluorine-free silane coupling agents and CuO nanoparticles. NANO MATERIALS SCIENCE 2020. [DOI: 10.1016/j.nanoms.2019.09.004] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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YALÇIN B, AKCAN D, YALÇIN İE, ALPHAN MC, ŞENTÜRK K, ÖZYİĞİT İİ, ARDA L. Effect of Mg doping on morphology, photocatalytic activity and related biological properties of Zn 1-xMg xO nanoparticles. Turk J Chem 2020; 44:1177-1199. [PMID: 33488221 PMCID: PMC7751926 DOI: 10.3906/kim-2004-9] [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: 04/05/2020] [Accepted: 06/26/2020] [Indexed: 11/03/2022] Open
Abstract
The objective of this study is to synthesize ZnO and Mg doped ZnO (Zn1-xMgxO) nanoparticles via the sol-gel method, and characterize their structures and to investigate their biological properties such as antibacterial activity and hemolytic potential.Nanoparticles (NPs) were synthesized by the sol-gel method using zinc acetate dihydrate (Zn(CH3COO)2.2H2O) and magnesium acetate tetrahydrate (Mg(CH3COO)2.4H2O) as precursors. Methanol and monoethanolamine were used as solvent and sol stabilizer, respectively. Structural and morphological characterizations of Zn1-xMgxO nanoparticles were studied by using XRD and SEM-EDX, respectively. Photocatalytic activities of ZnO and selected Mg-doped ZnO (Zn1-xMgxO) nanoparticles were investigated by degradation of methylene blue (MeB). Results indicated that Mg doping (both 10% and 30%) to the ZnO nanoparticles enhanced the photocatalytic activity and a little amount of Zn0.90 Mg0.10 O photocatalyst (1.0 mg/mL) degraded MeB with 99% efficiency after 24 h of irradiation under ambient visible light. Antibacterial activity of nanoparticles versus Escherichia coli ( E. coli ) was determined by the standard plate count method. Hemolytic activities of the NPs were studied by hemolysis tests using human erythrocytes. XRD data proved that the average particle size of nanoparticles was around 30 nm. Moreover, the XRD results indicatedthat the patterns of Mg doped ZnO nanoparticles related to ZnO hexagonal wurtzite structure had no secondary phase for x ≤ 0.2 concentration. For 0 ≤ x ≤ 0.02, NPs showed a concentration dependent antibacterial activity against E. coli . While Zn0.90Mg0.10 O totally inhibited the growth of E. coli , upper and lower dopant concentrations did not show antibacterial activity.
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Affiliation(s)
- Bestenur YALÇIN
- Department of Medical Laboratory Techniques, Vocational School of Health Services, Bahçeşehir University İstanbulTurkey
| | - Doğan AKCAN
- Department of Mathematics Engineering, Faculty of Engineering and Natural Sciences, Bahçeşehir University, İstanbulTurkey
| | - İbrahim Ertuğrul YALÇIN
- Department of Civil Engineering, Faculty of Engineering and Natural Sciences, Bahçeşehir University, İstanbulTurkey
| | - Mehmet Can ALPHAN
- Department of Electric Electronic Engineering, Faculty of Engineering and Natural Sciences, Bahçeşehir University, İstanbulTurkey
| | - Kenan ŞENTÜRK
- Department of Mechatronics Engineering, Faculty of Engineering and Architecture, İstanbul Gelişim University, İstanbulTurkey
| | - İbrahim İlker ÖZYİĞİT
- Department of Biology, Faculty of Science and Arts, Marmara University, İstanbulTurkey
- Department of Biology, Faculty of Science, Kyrgyz-Turkish Manas University, BishkekTurkey
| | - Lütfi ARDA
- Department of Mechatronics Engineering, Faculty of Engineering and Natural Sciences, Bahçeşehir University, İstanbulTurkey
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Cotton Terry Textiles with Photo- and Bio-Activity in a Model Study and Real Conditions. MATERIALS 2020; 13:ma13153334. [PMID: 32726989 PMCID: PMC7435768 DOI: 10.3390/ma13153334] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/28/2020] [Revised: 07/09/2020] [Accepted: 07/22/2020] [Indexed: 12/24/2022]
Abstract
The aim of the study was to assess the photocatalytic (decompose staining particles, K/S values, the color differences, CIE L*a*b* color) and antimicrobial properties of textiles modified with TiO2 and ZnO nanoparticles (NPs) confirmed by X-ray diffraction, dynamic light scattering, SEM-EDX) in visible light conditions. The antimicrobial effectiveness of modified textiles under model conditions has been reported against 5 microorganisms: Staphylococcus aureus, Escherichia coli, Bacillus subtilis, Candida albicans, Aspergillus niger (AATCC Test Method 100-2004). In real conditions in bathrooms, significant biostatic activity was shown on the surface of the modified towels. The number of microorganisms decreased by 1-5 log to the level of 0-5 CFU/cm2 in the case of bacteria: Enterobacteriaceae, Enterococcus, the coli group and E. coli, Pseudomonas. Statistically significant reduction of the total number of bacteria and fungi (by 1 log), and the concentration of gases (NO2, CO2, CO) in the air of bathrooms was determined. The removal or reduction of volatile organic compounds (VOCs) concentration (SPME-GC-MS analysis) in the air above the modified towels has also been determined. It was found that the lighting type (natural, artificial), time (1.5 and 7 h/day), air humidity (RH = 36-67%) and light intensity (81-167 lux) are important for the efficiency of photocatalysis. Textile materials modified with TiO2 and ZnO NPs can be used as self-cleaning towels. They can also help purify air from microorganisms, VOCs and undesirable gases.
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Saha RK, Debanath MK, Paul B, Medhi S, Saikia E. Antibacterial and nonlinear dynamical analysis of flower and hexagon-shaped ZnO microstructures. Sci Rep 2020; 10:2598. [PMID: 32054975 PMCID: PMC7018978 DOI: 10.1038/s41598-020-59534-x] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2019] [Accepted: 01/21/2020] [Indexed: 12/02/2022] Open
Abstract
The present study reports the antibacterial properties of flower-shaped ZnO (FZnO) microstructures and its comparison with that of hexagon-shaped bulk ZnO (BZnO) nanostructures. The samples are prepared successfully by wet chemical method and the surface morphologies, structures and size of the ZnO samples are characterized by X-ray diffraction (XRD), Scanning Electron Microscopy (SEM), Transmission Electron Microscopy (TEM), BET adsorption isotherm, and Photoluminescence (PL) Spectroscopy. The SEM and TEM images of the sample have confirmed flower-shaped structure of the ZnO. The materials are also analyzed by using an innovative tool called Lacunarity, a nonlinear dynamical (NLD) tool for proper understanding of the inherent surface properties of the particles formed, comparing the results estimated with the BET results obtained, thereby confirming our proposition to use it as an important parameter in predictive models. In this new approach, geometry of the surface structure is being associated with biological properties, in order to come up with easier ways to identify materials for any such applications where rich surface structure is desired. The photocatalytic activity of the flower-shaped material is carried out to find out its optical properties as another marker for confirming the antimicrobial activities. It has been reported for the first time that the prominent antibacterial activities are favoured by the FZnO microstructure having lesser Lacunarity, significantly better than its bulk counterpart, for inhibiting gram negative - Escherichia coli microorganism.
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Affiliation(s)
- Rajat K Saha
- Department of Applied Sciences, Gauhati University, Guwahati, 781014, India
| | - Mrinal K Debanath
- Department of Applied Sciences, Gauhati University, Guwahati, 781014, India
| | - Bishaldip Paul
- Department of Bioengineering and Technology, Gauhati University, Guwahati, 781014, India
| | - Subhash Medhi
- Department of Bioengineering and Technology, Gauhati University, Guwahati, 781014, India
| | - Eeshankur Saikia
- Department of Applied Sciences, Gauhati University, Guwahati, 781014, India.
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Samanta S, Banerjee SL, Ghosh SK, Singha NK. Smart Polyacrylate Emulsion Based on a New ABC-Type Triblock Copolymer via RAFT-Mediated Surfactant-Free Miniemulsion Polymerization: Its Multifunctional Properties. ACS APPLIED MATERIALS & INTERFACES 2019; 11:44722-44734. [PMID: 31670941 DOI: 10.1021/acsami.9b15964] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
The present investigation deals with the development of an acrylic-based polymeric emulsion that offers multifunctional properties such as superhydrophobic, antimicrobial, anti-icing, and self-cleaning. The said multifunctional waterborne emulsion was prepared via a surfactant-free reversible addition-fragmentation chain transfer (RAFT) polymerization technique. To accomplish this, a new class of ABC-type triblock copolymer (PMTAC-b-PBA-b-PIBA) based on 2-(methacryloyloxy) ethyl ammonium chloride (MTAC), n-butyl acrylate, and isobornyl acrylate (IBA) was synthesized via a polymerization-induced self-assembly technique in a surfactant-free miniemulsion process. The cationic polymer PMTAC was used as a macro-RAFT agent to prepare the rest of the blocks in the presence of nanosize monodisperse colloidal silica particles, leading to a raspberry-like morphology via ionic interaction between anionic silica particles and the cationic block copolymer (BCP). A water contact angle of more than 150° was achieved for the emulsion coating after the fluorosilane treatment which delineates its superhydrophobic nature. The prepared emulsion showed antimicrobial property both in Gram-positive (Staphylococcus aureus) and Gram-negative (Escherichia coli) bacteria. The resultant BCP emulsion was coated over different substrates like glass, paper, and cotton, and the coating material showed anti-icing and self-cleaning properties.
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Affiliation(s)
| | | | - Swapan K Ghosh
- Asian Paints Limited , Plot No. C-3B/1, TTC Industrial Area, Turbhe , Navi Mumbai 400703 , Maharashtra , India
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Liang H, Hu YC, Tao Y, Wu B, Wu Y, Cao J. Existence of Ligands within Sol-Gel-Derived ZnO Films and Their Effect on Perovskite Solar Cells. ACS APPLIED MATERIALS & INTERFACES 2019; 11:43116-43121. [PMID: 31663324 DOI: 10.1021/acsami.9b13278] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
The sol-gel (SG) method has been well-documented as one useful way to produce ZnO films as an excellent electron transport material (ETM) for efficient perovskite solar cells (PSCs). Generally, the precursor films containing zinc acetate dihydrate and a stabilizing ligand monoethanolamine (EA) were annealed to obtain ZnO films. A noteworthy issue is the commonly reported annealing temperature (Ta) in a wide range of 150-600 °C. In this work, we investigated the effect of the annealing temperature on the film composition and first confirmed the co-existence of acetate and EA species when Ta is below 380 °C. EA still survived within the ZnO films when Ta was between 380 and 450 °C. When Ta was over 450 °C, pure ZnO films can be obtained. The presence of ligands also remarkably altered the work function of the corresponding ZnO samples, thereby resulting in the remarkably different effects on the efficiency and stability of PSCs with the ZnO samples as ETMs. This work affords a clearer understanding of ZnO films prepared by the SG method at molecular insights, promoting their application in photoelectric fields.
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Affiliation(s)
- Haixia Liang
- State Key Laboratory of Applied Organic Chemistry, Key Laboratory of Nonferrous Metal Chemistry and Resources Utilization of Gansu Province, College of Chemistry and Chemical Engineering , Lanzhou University , Lanzhou 730000 , Gansu , P. R. China
| | - Yi-Chen Hu
- State Key Laboratory of Applied Organic Chemistry, Key Laboratory of Nonferrous Metal Chemistry and Resources Utilization of Gansu Province, College of Chemistry and Chemical Engineering , Lanzhou University , Lanzhou 730000 , Gansu , P. R. China
| | - Yiran Tao
- State Key Laboratory of Applied Organic Chemistry, Key Laboratory of Nonferrous Metal Chemistry and Resources Utilization of Gansu Province, College of Chemistry and Chemical Engineering , Lanzhou University , Lanzhou 730000 , Gansu , P. R. China
| | - Binghui Wu
- Pen-Tung Sah Institute of Micro-Nano Science and Technology , Xiamen University , Xiamen 361005 , Fujian , P. R. China
| | - Yiying Wu
- Department of Chemistry and Biochemistry , The Ohio State University , 100 West 18th Avenue , Columbus , Ohio 43210 , United States
| | - Jing Cao
- State Key Laboratory of Applied Organic Chemistry, Key Laboratory of Nonferrous Metal Chemistry and Resources Utilization of Gansu Province, College of Chemistry and Chemical Engineering , Lanzhou University , Lanzhou 730000 , Gansu , P. R. China
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Antibacterial superhydrophobic polyvinyl chloride surfaces via the improved phase separation process using silver phosphate nanoparticles. Colloids Surf B Biointerfaces 2019; 183:110438. [DOI: 10.1016/j.colsurfb.2019.110438] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2019] [Revised: 08/12/2019] [Accepted: 08/13/2019] [Indexed: 11/20/2022]
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47
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Chen W, Chen J, Li L, Wang X, Wei Q, Ghiladi RA, Wang Q. Wool/Acrylic Blended Fabrics as Next-Generation Photodynamic Antimicrobial Materials. ACS APPLIED MATERIALS & INTERFACES 2019; 11:29557-29568. [PMID: 31356046 DOI: 10.1021/acsami.9b09625] [Citation(s) in RCA: 33] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
The adoption of self-sterilizing materials to reduce infection transmission in hospitals and related healthcare facilities has been hampered by the availability of scalable, cost-effective, and potent antimicrobial textiles. Here, we investigated whether photodynamic materials comprising photosensitizer-embedded wool/acrylic blends were able to mediate the photodynamic inactivation of Gram-positive and Gram-negative bacteria. A small library of wool/acrylic (W/A) blended fabrics was constructed wherein the wool fibers were embedded with rose Bengal (RB) as a photosensitizer and the acrylic fibers were dyed with a traditional cationic yellow X-8GL dye, thereby enabling a broader color palette than was achievable with a single photosensitizer. The resultant photodynamic materials were characterized by physical (SEM, DSC, TGA, tensile strength), spectroscopic (fluorescence), colorimetric (K/S and CIELab values), and color fastness (against rubbing, washing) studies, and their photooxidation of the model substrate potassium iodide demonstrated the ability of these materials to generate microbicidal reactive oxygen species (i.e., singlet oxygen) upon illumination. Our best results yielded the photodynamic inactivation of Gram-positive S. aureus (99.98%) and B. subtilis (99.993%) by ∼4 log units upon illumination with visible light (60 min; 65 ± 5 mW/cm2; λ ≥ 420 nm), although more modest activity was observed against Gram-negative P. aeruginosa and E. coli (1-2 log units pathogen reduction). While there were no statistically significant differences for dual-dyed materials that were produced through either sequential or simultaneous dyeing steps, it was noted that high loadings of the cationic yellow X-8GL dye did inhibit the antimicrobial activity of the RB photosensitizer, with the dual-dyed materials able to mediate a 2.9 log unit reduction against S. aureus at a 1% o.w.f X-8GL loading. These findings indicate that the antimicrobial photodynamic inactivation of dual-dyed materials is independent of the dyeing process itself, yet exhibits limitations on the loading of the traditional dye with regards to the activity of the photosensitizer. Taken together, the results suggest the feasibility of photosensitizer-embedded blended fabrics produced through a one-step dyeing process as a low-cost and scalable method for creating effective self-disinfecting textiles for infection prevention, and whose inclusion of a second traditional dye for color variation will further benefit their adoption from a commercial standpoint.
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Affiliation(s)
- Wangbingfei Chen
- Key Laboratory of Eco-Textiles, Ministry of Education , Jiangnan University , Wuxi 214122 , China
| | - Jiang Chen
- Key Laboratory of Eco-Textiles, Ministry of Education , Jiangnan University , Wuxi 214122 , China
| | - Ling Li
- Key Laboratory of Eco-Textiles, Ministry of Education , Jiangnan University , Wuxi 214122 , China
| | - Xinyi Wang
- Key Laboratory of Eco-Textiles, Ministry of Education , Jiangnan University , Wuxi 214122 , China
| | - Qufu Wei
- Key Laboratory of Eco-Textiles, Ministry of Education , Jiangnan University , Wuxi 214122 , China
| | - Reza A Ghiladi
- Key Laboratory of Eco-Textiles, Ministry of Education , Jiangnan University , Wuxi 214122 , China
- Department of Chemistry , North Carolina State University , Raleigh , North Carolina 27695 , United States
| | - Qingqing Wang
- Key Laboratory of Eco-Textiles, Ministry of Education , Jiangnan University , Wuxi 214122 , China
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Shen W, Zhang L, Li X, Yu HZ. Binary Silanization and Silver Nanoparticle Encapsulation to Create Superhydrophobic Cotton Fabrics with Antimicrobial Capability. Sci Rep 2019; 9:9172. [PMID: 31235747 PMCID: PMC6591378 DOI: 10.1038/s41598-019-45622-0] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2019] [Accepted: 06/05/2019] [Indexed: 11/08/2022] Open
Abstract
Cotton fabrics are functionalized with a binary solution of fluorine-free organosilanes and "encapsulated" with silver nanoparticles to achieve both superhydrophobic and antimicrobial properties. Derived from cellulose, cotton is one of the most abundant biologically generated materials and has been used in a wide variety of consumer goods. Nonetheless, cotton fabrics are not waterproof and prone to microbial contamination. Herein we report the rapid functionalization of cotton fabrics with a binary hexane solution of methyltrichlorosilane (MTS) and octadecyltrichlorosilane (OTS) at low concentration (0.17% v/v) followed by coating with colloidal silver nanoparticles (AgNP). The combined effects of binary silanization and AgNP encapsulation produced a surface that has remarkable water contact angle of 153 ± 2° and antimicrobial properties (against gram-negative Escherichia coli). The superior performance of the modified cotton fabrics produced with fluorine-free organosilanes and silver nanoparticles augments the potential of improving the functionality of abundant biopolymers to be waterproof and contamination-resistant.
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Affiliation(s)
- William Shen
- Department of Chemistry, Simon Fraser University, Burnaby, British Columbia, V5A 1S6, Canada
| | - Lishen Zhang
- Department of Chemistry, Simon Fraser University, Burnaby, British Columbia, V5A 1S6, Canada
| | - Xiaochun Li
- College of Biomedical Engineering, Taiyuan University of Technology, Taiyuan, Shanxi, 030024, P.R. China.
| | - Hua-Zhong Yu
- Department of Chemistry, Simon Fraser University, Burnaby, British Columbia, V5A 1S6, Canada.
- College of Biomedical Engineering, Taiyuan University of Technology, Taiyuan, Shanxi, 030024, P.R. China.
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Dolan MJ, Blackledge RD, Jorabchi K. Classifying single fibers based on fluorinated surface treatments. Anal Bioanal Chem 2019; 411:4775-4784. [DOI: 10.1007/s00216-019-01596-6] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2018] [Revised: 01/04/2019] [Accepted: 01/09/2019] [Indexed: 01/23/2023]
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Khanmohammadi Chenab K, Sohrabi B, Rahmanzadeh A. Superhydrophobicity: advanced biological and biomedical applications. Biomater Sci 2019; 7:3110-3137. [DOI: 10.1039/c9bm00558g] [Citation(s) in RCA: 55] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
The biological and biomedical applications of superhydrophobic surface.
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Affiliation(s)
- Karim Khanmohammadi Chenab
- Department of Chemistry
- Surface Chemistry Research Laboratory
- Iran University of Science and Technology
- Tehran
- Iran
| | - Beheshteh Sohrabi
- Department of Chemistry
- Surface Chemistry Research Laboratory
- Iran University of Science and Technology
- Tehran
- Iran
| | - Atyeh Rahmanzadeh
- Department of Chemistry
- Surface Chemistry Research Laboratory
- Iran University of Science and Technology
- Tehran
- Iran
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