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Hamouda T, Kafafy H, Mashaly HM, Aly NM. Breathability performance of antiviral cloth masks treated with silver nanoparticles for protection against COVID-19. J Ind Text 2022; 51:1494-1523. [PMID: 35923723 PMCID: PMC8914303 DOI: 10.1177/15280837211051100] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/09/2023]
Abstract
The global widespread of coronavirus disease 2019 (COVID-19) has caused shortage of medical face masks and led to developing of various types of cloth masks with different levels of protection and comfort to meet the market demands. Breathing comfort is a significant aspect that should be considered during the design of cloth masks along with the filtration efficiency; otherwise, the wearer will feel suffocated. In this work, different types of cotton and polyester knitted fabrics blended with spandex yarns were produced and treated with silver nanoparticles to be used as antiviral cloth masks. Scanning electron microscope, transmission electron microscope, and EDX were used to characterize the silver nanoparticles (AgNPs). Antiviral activity was assessed against SARS-CoV-2 coronavirus as well. The influence of using different fabric materials, number of layers, and hybrid layers on their air permeability and breathability were investigated to evaluate the comfortability of the cloth masks. Physiological impacts of wearing the cloth masks were evaluated by measuring oxygen saturation of hemoglobin and heart rate of the wearers while doing various activities. The results indicated that AgNPs have low cytotoxicity and considerable efficiency in inhibition of SARS-CoV-2. Adding spandex yarns with different count and ratios reduced the porosity and air permeability of the fabrics. Moreover, the combination of three hybrid layers' mask made of polyester fabric in the outer layer with 100% cotton fabric in the inner layer showed high comfortability associated with high air permeability and breathability. Also, wearing these masks while doing activities showed no significant effect on blood oxygen saturation and heart rate of the wearers.
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Affiliation(s)
- Tamer Hamouda
- Spinning and Weaving Engineering Department, Textile Industries Research Division, National Research Centre, Cairo, Egypt
| | - Hany Kafafy
- Dyeing, Printing and Auxiliaries Department, Textile Industries Research Division, National Research Centre, Cairo, Egypt
| | - HM Mashaly
- Dyeing, Printing and Auxiliaries Department, Textile Industries Research Division, National Research Centre, Cairo, Egypt
| | - Nermin M Aly
- Spinning and Weaving Engineering Department, Textile Industries Research Division, National Research Centre, Cairo, Egypt
- Nermin M Aly,Spinning and Weaving Engineering Department, Textile Industries Research Division, National Research Centre, 33 El Bohouth St., Dokki, Cairo12622, Egypt.
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Hamouda T, Ibrahim HM, Kafafy HH, Mashaly HM, Mohamed NH, Aly NM. Preparation of cellulose-based wipes treated with antimicrobial and antiviral silver nanoparticles as novel effective high-performance coronavirus fighter. Int J Biol Macromol 2021; 181:990-1002. [PMID: 33864870 PMCID: PMC8056979 DOI: 10.1016/j.ijbiomac.2021.04.071] [Citation(s) in RCA: 35] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2021] [Revised: 03/19/2021] [Accepted: 04/12/2021] [Indexed: 12/19/2022]
Abstract
Coronaviruses (CoV) are a large family of viruses that cause illness ranging from the common cold to more severe diseases such as Middle East Respiratory Syndrome (MERS-CoV) and Severe Acute Respiratory Syndrome (SARS-CoV). We succeeded in preparing disinfectant cellulose-based wipes treated with antimicrobial and antiviral silver nanoparticles to be used for prevention of contamination and transmission of several pathogenic viruses and microbes to human in critical areas such as hospitals and healthcare centers especially coronavirus. In this work, the antimicrobial and antiviral activities of silver nanoparticles (AgNPs) prepared with four different techniques were investigated for the utilization as a disinfectant for cellulose-based wipes. These four methods are namely; 1) trisodium citrate with cotton yarn as a reducing agent, 2) preparing AgNP's using aqueous solution of PVA in the presence of glucose, 3) trisodium citrate with cotton fabric as a reducing agent, and 4) photochemical reaction of polyacrylic acid and silver nitrate solution. Polyester/viscose blended spunlace nonwoven fabrics as cellulose based fabrics were treated with the prepared silver nanoparticles to be used as surfaces disinfection wipes. The properties of the nonwoven fabrics were examined including thickness, tensile strength in dry and wet conditions in both machine direction (MD) and cross-machine direction (CMD), bursting strength, air permeability, water permeability and surface wettability. Characterization of the AgNPs was carried out in terms of UV-VIS spectroscopy, TEM, SEM, and Zeta potential analysis. The assessment of AgNPs active solutions for antimicrobial and antiviral activities was evaluated. The results obtained from the analyses of the AgNPs samples prepared with different techniques showed good uniformity and stability of the particles, as well uniform coating of the AgNPs on the fibers. Additionally, there is a significant effect of the AgNPs preparation method on their disinfectant performance that proved its effectiveness against coronavirus (MERS-CoV), S. aureus and B. subtilis as Gram-positive bacteria, E. coli and P. mirabilis as Gram-negative bacteria, A. niger and C. albicans fungi.
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Affiliation(s)
- Tamer Hamouda
- Spinning and Weaving Engineering Department, Textile Industries Research Division, National Research Centre, 33 El Bohouth St., Dokki, P.O. 12622, Cairo, Egypt
| | - Hassan M Ibrahim
- Pretreatment and Finishing of Cellulosic Fibers Department, Textile Industries Research Division, National Research Centre, 33 El-Behouth St., Dokki, P.O. 12622, Cairo, Egypt.
| | - H H Kafafy
- Dyeing, Printing and Auxiliaries Department, Textile Industries Research Division, National Research Centre, 33 El Bohouth St., Dokki, P.O. 12622, Cairo, Egypt
| | - H M Mashaly
- Dyeing, Printing and Auxiliaries Department, Textile Industries Research Division, National Research Centre, 33 El Bohouth St., Dokki, P.O. 12622, Cairo, Egypt
| | - Nasser H Mohamed
- Proteinic and Man-Made Fibers Department, Textile Industries Research Division, National Research Centre, 33 El Bohouth St., Dokki, P.O. 12622, Cairo, Egypt
| | - Nermin M Aly
- Spinning and Weaving Engineering Department, Textile Industries Research Division, National Research Centre, 33 El Bohouth St., Dokki, P.O. 12622, Cairo, Egypt
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Abdelslam S, Mashaly H, Abd El-Thaloutha J, Saad MA, Abdel-Aziz M. An Environmental Friendly Approach in Printing of Natural Fabrics on Using Chitosan and Chitosan Nanoparticles. Egypt J Chem 2021. [DOI: 10.21608/ejchem.2021.63865.3367] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Healy E, Mendel E, Walston S, Levine K, Mashaly H, Zhang Z, Bourekas E, Raval R, Palmer J, Blakaj D. Local Control Assessment of Spine Metastases after Post-operative Stereotactic Radiosurgery Following Limited Versus Extensive Spine Surgery: A Retrospective Review. Int J Radiat Oncol Biol Phys 2017. [DOI: 10.1016/j.ijrobp.2017.06.1850] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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El Darouti MA, Hussein S, Al Tahlawy SR, Al Fangary M, Mashaly HM, El Nabarawy E, Al Tawdy A, Fawzi M, Abdel Hay RM. Clinical study of nail changes in leprosy and comparison with nail changes in diabetic patients. J Eur Acad Dermatol Venereol 2011; 25:290-5. [DOI: 10.1111/j.1468-3083.2010.03783.x] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Nagui N, El Nabarawy E, Mahgoub D, Mashaly HM, Saad NE, El-Deeb DF. Estimation of (IgA) anti-gliadin, anti-endomysium and tissue transglutaminase in the serum of patients with psoriasis. Clin Exp Dermatol 2010; 36:302-4. [PMID: 21418272 DOI: 10.1111/j.1365-2230.2010.03980.x] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Studies have indicated an association between psoriasis and coeliac disease (CD), an immune-mediated gluten-dependent enteropathy; however, the precise relationship between psoriasis and CD remains controversial. We aimed to assess the prevalence of the CD-associated IgA antibodies antigliadin antibody (AGA), tissue transglutaminase (tTG) and antiendomysium antibody (EMA) in patients with psoriasis. In total, 41 patients with psoriasis and 41 healthy controls were enrolled in this study. Blood samples were taken from all participants, and screened for AGA, tTG and EMA. We found a significantly higher level of AGA in patients with psoriasis than in controls, but levels of tTG and EMA were not significant. There was also a significantly higher prevalence of AGA, tTG and EMA in the patient group (34.1%, 34.1% and 14.6%, respectively) than in the control group (2.4%, 22% and 4.9%, respectively). We conclude that the significantly high prevalence of AGA antibodies in patients with psoriasis supports the possibility of a link between psoriasis and gluten-sensitive enteropathies, especially CD.
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Affiliation(s)
- N Nagui
- Department of Dermatology, Faculty of Medicine, Cairo University, Cairo, Egypt
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Kamel MM, Helmy HM, Mashaly HM, Kafafy HH. Ultrasonic assisted dyeing: dyeing of acrylic fabrics C.I. Astrazon Basic Red 5BL 200%. Ultrason Sonochem 2010; 17:92-97. [PMID: 19574082 DOI: 10.1016/j.ultsonch.2009.06.001] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/30/2009] [Revised: 05/23/2009] [Accepted: 06/02/2009] [Indexed: 05/28/2023]
Abstract
The dyeing of acrylic fabrics using C.I. Astrazon Basic Red 5BL 200% has been studied with both conventional and ultrasonic techniques. The effect of dye concentration, dye bath pH, ultrasonic power, dyeing time and temperature were studied and the resulting shades obtained by dyeing with both techniques were compared. Colour strength values obtained were found to be higher with ultrasonic than with conventional heating. The results of fastness properties of the dyed fabrics were studied. X-ray and Scanning Electron Microscope SEM were carried out on dyed samples using both methods of dyeing to find out an explanation for the better dyeability of acrylic fabrics with (US) method. Dyeing kinetics of acrylic fabrics using C.I. Astrazon Basic Red 5BL 200% using conventional and ultrasonic conditions were compared. The time/dye-uptake isotherms are revealing the enhanced dye-uptake in the second phase of dyeing. The values of dyeing rate constant, half-time of dyeing and standard affinity and ultrasonic efficiency have been calculated and discussed.
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Affiliation(s)
- M M Kamel
- National Research Centre, Textile Division, Dokki, Cairo, Egypt.
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