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Wendler F, Schulze T, Bauer J, Redlingshöfer B. Bioactive Lyocell Fibers with Inherent Antibacterial, Antiviral and Antifungal Properties. Molecules 2024; 29:2054. [PMID: 38731545 PMCID: PMC11085106 DOI: 10.3390/molecules29092054] [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: 03/04/2024] [Revised: 04/17/2024] [Accepted: 04/22/2024] [Indexed: 05/13/2024] Open
Abstract
Functional Lyocell fibers gain interest in garments and technical textiles, especially when equipped with inherently bioactive features. In this study, Lyocell fibers are modified with an ion exchange resin and subsequently loaded with copper (Cu) ions. The modified Lyocell process enables high amounts of the resin additive (>10%) through intensive dispersion and subsequently, high uptake of 2.7% Cu throughout the whole cross-section of the fiber. Fixation by Na2CO3 increases the washing and dyeing resistance considerably. Cu content after dyeing compared to the original fiber value amounts to approx. 65% for reactive, 75% for direct, and 77% for HT dyeing, respectively. Even after 50 household washes, a recovery of 43% for reactive, 47% for direct and 26% for HT dyeing is proved. XRD measurements reveal ionic bonding of Cu fixation inside the cellulose/ion exchange resin composite. A combination of the fixation process with a change in Cu valence state by glucose/NaOH leads to the formation of Cu2O crystallites, which is proved by XRD. Cu fiber shows a strong antibacterial effect against Staphylococcus aureus and Klebsiella pneumonia bacteria, even after 50 household washing cycles of both >5 log CFU. In nonwoven blends with a share of only 6% Cu fiber, a strong antimicrobial (CFU > log 5) and full antiviral effectiveness (>log 4) was received even after 50 washing cycles. Time-dependent measurements already show strong antiviral behavior after 30 s. Further, the fibers show an increased die off of the fungal isolate Candida auris with CFU log 4.4, and nonwovens made from 6% Cu fiber share a CFU log of 1.7. Findings of the study predestines the fiber for advanced textile processing and applications in areas with high germ loads.
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Affiliation(s)
- Frank Wendler
- Smartpolymer GmbH, 07407 Rudolstadt, Germany
- Centre of Excellence for Polysaccharide Research, Thuringian Institute of Textile and Plastics Research e.V., European Polysaccharide Network of Excellence (EPNOE), 07407 Rudolstadt, Germany
| | - Thomas Schulze
- Centre of Excellence for Polysaccharide Research, Thuringian Institute of Textile and Plastics Research e.V., European Polysaccharide Network of Excellence (EPNOE), 07407 Rudolstadt, Germany
| | - Janine Bauer
- Centre of Excellence for Polysaccharide Research, Thuringian Institute of Textile and Plastics Research e.V., European Polysaccharide Network of Excellence (EPNOE), 07407 Rudolstadt, Germany
| | - Benjamin Redlingshöfer
- Centre of Excellence for Polysaccharide Research, Thuringian Institute of Textile and Plastics Research e.V., European Polysaccharide Network of Excellence (EPNOE), 07407 Rudolstadt, Germany
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2
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Wu J, Guo W, Wang Y, Liu J, Wang H, Zheng Z, Wang X, Kaplan DL. Stabilization and Sustained Release of Fragrances Using Silk-PEG Microspheres. ACS Biomater Sci Eng 2023. [PMID: 37144723 DOI: 10.1021/acsbiomaterials.3c00064] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/06/2023]
Abstract
Fragrances, which are commonly used in food, textiles, consumer products, and medical supplies, are volatile compounds that require stabilization and controlled release due to their sensitivity to environmental conditions such as light, oxygen, temperature, and humidity. Encapsulation in various material matrices is a desired technique for these purposes, and there is a growing interest in using sustainable natural materials to reduce environmental impact. In this study, fragrance encapsulation in microspheres made from silk fibroin (SF) was investigated. Fragrance-loaded silk fibroin microspheres (Fr-SFMSs) were prepared by adding fragrance/surfactant emulsions to silk solutions, followed by mixing them with polyethylene glycol under ambient conditions. The study investigated eight different fragrances, where citral, beta-ionone, and eugenol showed higher binding affinities to silk than the other five fragrances, resulting in better microsphere formation with uniform sizes and higher fragrance loading (10-30%). Citral-SFMSs showed characteristic crystalline β-sheet structures of SF, high thermal stability (initial weight loss at 255 °C), long shelf life at 37 °C (>60 days), and sustained release (∼30% of citral remained after incubation at 60 °C for 24 h). When citral-SFMSs with different sizes were used to treat cotton fabrics, about 80% of the fragrance remained on the fabrics after one wash, and the duration of release from the treated fabrics was significantly longer than that of control samples treated with citral alone (no microspheres). This method of preparing Fr-SFMSs has potential applications in textile finishing, cosmetics, and the food industry.
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Affiliation(s)
- Jianbing Wu
- National Engineering Laboratory for Modern Silk, College of Textile and Clothing Engineering, Soochow University, Suzhou 215123, People's Republic of China
- College of Textile, Garment and Design, Changshu Institute of Technology, Suzhou 215500, People's Republic of China
| | - Wenjun Guo
- National Engineering Laboratory for Modern Silk, College of Textile and Clothing Engineering, Soochow University, Suzhou 215123, People's Republic of China
| | - Yongfeng Wang
- National Engineering Laboratory for Modern Silk, College of Textile and Clothing Engineering, Soochow University, Suzhou 215123, People's Republic of China
| | - Jian Liu
- National Engineering Laboratory for Modern Silk, College of Textile and Clothing Engineering, Soochow University, Suzhou 215123, People's Republic of China
| | - Heng Wang
- National Engineering Laboratory for Modern Silk, College of Textile and Clothing Engineering, Soochow University, Suzhou 215123, People's Republic of China
| | - Zhaozhu Zheng
- National Engineering Laboratory for Modern Silk, College of Textile and Clothing Engineering, Soochow University, Suzhou 215123, People's Republic of China
| | - Xiaoqin Wang
- National Engineering Laboratory for Modern Silk, College of Textile and Clothing Engineering, Soochow University, Suzhou 215123, People's Republic of China
| | - David L Kaplan
- Department of Biomedical Engineering, Tufts University, 4 Colby Street, Medford, Massachusetts 02155, United States
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3
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Usseglio N, Onnainty R, Konigheim B, Aguilar J, Petiti JP, Lingua G, Leimgruber C, Bonafé Allende JC, Torres A, Granero G. Cuprous oxide nanoparticles incorporated into a polymeric matrix embedded in fabrics to prevent spread of SARS-CoV-2. Int J Pharm 2023; 636:122790. [PMID: 36863542 PMCID: PMC9974211 DOI: 10.1016/j.ijpharm.2023.122790] [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: 10/25/2022] [Revised: 02/24/2023] [Accepted: 02/25/2023] [Indexed: 03/04/2023]
Abstract
This paper describes the development of a coating for cotton and polypropylene (PP) fabrics based on a polymeric matrix embedded with cuprous oxide nanoparticles (Cu2O@SDS NPs) in order to inactivate SARS-CoV-2 and manufactured by a simple process using a dip-assisted layer-by-layer technology, at low curing temperature and without the need for expensive equipment, capable of achieving disinfection rates of up to 99%. The polymeric bilayer coating makes the surface of the fabrics hydrophilic, enabling the transportation of the virus-infected droplets to achieve the rapid inactivation of SARS-CoV-2 by contact with the Cu2O@SDS NPs incorporated in the coated fabrics.
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Affiliation(s)
- Nadina Usseglio
- Unidad de Investigaciones y Desarrollo en Tecnología Farmacéutica (UNITEFA) -CONICET, Departamento de Ciencias Farmacéuticas, Facultad de Ciencias Químicas, Universidad Nacional de Córdoba, Argentina
| | - Renée Onnainty
- Unidad de Investigaciones y Desarrollo en Tecnología Farmacéutica (UNITEFA) -CONICET, Departamento de Ciencias Farmacéuticas, Facultad de Ciencias Químicas, Universidad Nacional de Córdoba, Argentina
| | - Brenda Konigheim
- Universidad Nacional de Córdoba, Facultad de Ciencias Médicas, Instituto de Virología "Dr. J. M. Vanella"- Argentina, Enfermera Gordillo S/N, Ciudad Universitaria, X5000HUA Córdoba, Argentina; Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Argentina
| | - Javier Aguilar
- Universidad Nacional de Córdoba, Facultad de Ciencias Médicas, Instituto de Virología "Dr. J. M. Vanella"- Argentina, Enfermera Gordillo S/N, Ciudad Universitaria, X5000HUA Córdoba, Argentina
| | - Juan Pablo Petiti
- Instituto de Investigaciones en Ciencias de la Salud (INICSA)-CONICET, Centro de Microscopía Electrónica, Facultad de Ciencias Médicas, Universidad Nacional de Córdoba, Argentina
| | - Giuliana Lingua
- Universidad Nacional de Córdoba, Facultad de Ciencias Médicas, Instituto de Virología "Dr. J. M. Vanella"- Argentina, Enfermera Gordillo S/N, Ciudad Universitaria, X5000HUA Córdoba, Argentina; Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Argentina
| | - Carolina Leimgruber
- Instituto de Investigaciones en Ciencias de la Salud (INICSA)-CONICET, Centro de Microscopía Electrónica, Facultad de Ciencias Médicas, Universidad Nacional de Córdoba, Argentina
| | - Juan Cruz Bonafé Allende
- Departamento de Química Orgánica, Facultad de Ciencias Químicas, IPQA-CONICET, Universidad Nacional de Córdoba, Argentina
| | - Alicia Torres
- Instituto de Investigaciones en Ciencias de la Salud (INICSA)-CONICET, Centro de Microscopía Electrónica, Facultad de Ciencias Médicas, Universidad Nacional de Córdoba, Argentina
| | - Gladys Granero
- Unidad de Investigaciones y Desarrollo en Tecnología Farmacéutica (UNITEFA) -CONICET, Departamento de Ciencias Farmacéuticas, Facultad de Ciencias Químicas, Universidad Nacional de Córdoba, Argentina.
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4
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Khin MM, Bao Y, Liang YN, Setyawati MI, Gnayem H, Ng KW, Sasson Y, Hu X. BiOClBr-coated fabrics with enhanced antimicrobial properties under ambient light. J Mater Chem B 2021; 9:3079-3087. [PMID: 33885669 DOI: 10.1039/d0tb02835e] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
This study demonstrates the fabrication of ambient light enabled antimicrobial functional fabrics by coating flower-like bismuth oxyhalide i.e. BiOCl0.875Br0.125, with the use of poly(vinyl alcohol) (PVA) and poly(acrylic acid) (PAA) as binders for improved coating robustness and durability. The uniformity of the microparticles was ensured with simultaneous probe sonication during the stages of crystal nucleation and growth. The polymeric binders not only strongly anchor the particle on the fabric, but also serve as an ultra-thin protective layer on the BiOClBr that mitigates bismuth leaching. The efficacy of inhibiting bacteria was investigated over the BiOClBr-coated fabrics i.e. cotton and polyester, and the results showed that the coated fabrics could effectively inhibit both Gram-positive and Gram-negative bacteria, i.e. S. aureus and E. coli. In comparison with fabrics coated with other photocatalytic materials including bismuth oxide (Bi2O3) and zinc oxide (ZnO), an exceptionally better antimicrobial efficacy was observed for BiOClBr-coated fabrics. The BiOClBr-coated cotton showed ∼5.0 and ∼6.8 times higher disinfection efficacy towards E. coli compared to that of ZnO and Bi2O3-coated cotton with the same particle weight percentage, respectively. Further elucidation of the probable mechanism by BiOClBr-coated fabrics is related to the excess amount of reactive oxygen species (ROS). Overall, BiOClBr has been shown to be a promising material to fabricate cost-effective antimicrobial functional surfaces for both environmental and biomedical applications e.g. protective laboratory and factory clothing.
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Affiliation(s)
- Mya Mya Khin
- Environmental Chemistry and Materials Centre, Nanyang Environment and Water Research Institute, Nanyang Technological University, 637141 Singapore, Singapore.
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5
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Teo WL. The "Maskne" microbiome - pathophysiology and therapeutics. Int J Dermatol 2021; 60:799-809. [PMID: 33576511 PMCID: PMC8013758 DOI: 10.1111/ijd.15425] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/13/2020] [Revised: 01/03/2021] [Accepted: 01/06/2021] [Indexed: 12/28/2022]
Abstract
"Maskne" is a new term coined during the 2020 COVID-19 pandemic. It refers to a subset of acne mechanica, deserving consideration in view of widespread reusable fabric mask-wearing to control the pandemic worldwide. Understanding of underlying pathophysiology directly relates to the novel skin microenvironment and textile-skin friction created by mask-wearing, distinct from nontextile-related acne mechanica previously linked to wearing of headgear. Specifically, the occlusive microenvironment leads to microbiome dysbiosis, which is linked to various dermatological conditions. Additional textile-skin interactions include factors such as breathability, stickiness sensations, moisture saturation, and hygiene maintenance. Increased skin temperatures can trigger sweat/heat-related dermatoses, and ear loops potentially trigger pressure-induced dermatoses. Important therapeutic considerations include increased skin irritation potential of conventional acne treatments under occlusion, exacerbation of chronic dermatoses, that is, perioral dermatitis, rosacea, and eczema, and susceptibility of these same patient groups to heightened discomfort with mask-wearing. Cotton, as the traditional fabric of choice for dermatology patients, has limited benefits in the context of face masks - increased subjective discomfort relates to increased moisture saturation and stickiness, inevitable because of high biofluid load of the nasal and oral orifices. Prolonged textile-skin contact time, directly proportional to the risk of maskne, can be an opportunity for the application of biofunctional textiles.
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Affiliation(s)
- Wan-Lin Teo
- TWL Specialist Skin & Laser Centre, Singapore
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6
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Sundar N, Stanley SJ, Kumar SA, Keerthana P, Kumar GA. Development of dual purpose, industrially important
PLA–PEG
based coated abrasives and packaging materials. J Appl Polym Sci 2021. [DOI: 10.1002/app.50495] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- N. Sundar
- Department of Chemistry, College of Engineering Anna University Chennai India
- Department of Research and Development Carborundum Universal Ltd Chennai India
| | - S. Johan Stanley
- Department of Chemistry, College of Engineering Anna University Chennai India
| | - S. Ananda Kumar
- Department of Chemistry, College of Engineering Anna University Chennai India
| | - P. Keerthana
- Department of Chemistry, College of Engineering Anna University Chennai India
| | - G. Ananda Kumar
- Department of Research and Development Carborundum Universal Ltd Chennai India
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7
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Wang L, Huang X, Sun W, Too HZ, Laserna AKC, Li SFY. A global metabolomic insight into the oxidative stress and membrane damage of copper oxide nanoparticles and microparticles on microalga Chlorella vulgaris. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2020; 258:113647. [PMID: 31810715 DOI: 10.1016/j.envpol.2019.113647] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/24/2019] [Revised: 10/21/2019] [Accepted: 11/17/2019] [Indexed: 05/09/2023]
Abstract
To compare aquatic organisms' responses to the toxicity of copper oxide (CuO) nanoparticles (NPs) with those of CuO microparticles (MPs) and copper (Cu) ions, a global metabolomics approach was employed to investigate the changes of both polar and nonpolar metabolites in microalga Chlorella vulgaris after 5-day exposure to CuO NPs and MPs (1 and 10 mg/L), as well as the corresponding dissolved Cu ions (0.08 and 0.8 mg/L). Unchanged growth, slight reactive oxygen species production, and significant membrane damage (at 10 mg/L CuO particles) in C. vulgaris were demonstrated. A total of 75 differentiated metabolites were identified. Most metabolic pathways perturbed after CuO NPs exposure were shared by those after CuO MPs and Cu ions exposure, including accumulation of chlorophyll intermediates (max. 2.4-5.2 fold), membrane lipids remodeling for membrane protection (decrease of phosphatidylethanolamines (min. 0.6 fold) and phosphatidylcholines (min. 0.2-0.7 fold), as well as increase of phosphatidic acids (max. 1.5-2.9 fold), phosphatidylglycerols (max. 2.2-2.3 fold), monogalactosyldiacylglycerols (max. 1.2-1.4 fold), digalactosylmonoacylglycerols (max. 1.9-3.8 fold), diacylglycerols (max. 1.4 fold), lysophospholipids (max. 1.8-3.0 fold), and fatty acids (max. 3.0-6.2 fold)), perturbation of glutathione metabolism induced by oxidative stress, and accumulation of osmoregulants (max. 1.3-2.6 fold) to counteract osmotic stress. The only difference between metabolic responses to particles and those to ions was the accumulation of fatty acids oxidation products: particles caused higher fold changes (particles/ions ratio 1.9-3.0) at 1 mg/L and lower fold changes (particles/ions ratio 0.4-0.7) at 10 mg/L compared with ions. Compared with microparticles, there was no nanoparticle-specific pathway perturbed. These results confirm the predominant role of dissolved Cu ions on the toxicity of CuO NPs and MPs, and also reveal particle-specific toxicity from a metabolomics perspective.
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Affiliation(s)
- Lei Wang
- MOE Laboratory for Earth Surface Processes, College of Urban and Environmental Sciences, Peking University, Beijing, 100871, China; Department of Chemistry, National University of Singapore, 3 Science Drive 3, Singapore
| | - Xulei Huang
- Department of Chemistry, National University of Singapore, 3 Science Drive 3, Singapore
| | - Weiling Sun
- College of Environmental Sciences and Engineering, The Key Laboratory of Water and Sediment Sciences, Ministry of Education, Peking University, Beijing, 100871, China
| | - Hui Zhen Too
- Department of Chemistry, National University of Singapore, 3 Science Drive 3, Singapore
| | | | - Sam Fong Yau Li
- Department of Chemistry, National University of Singapore, 3 Science Drive 3, Singapore; NUS Environmental Research Institute (NERI), #02-01, T-Lab Building (TL), 5A Engineering Drive 1, Singapore, 117411, Singapore.
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8
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Ren H, Zhang X, Zhang X, Cui J, Yang Q, Kong C, Yang Z, Sun S. An Mn2+-mediated construction of rhombicuboctahedral Cu2O nanocrystals enclosed by jagged surfaces for enhanced enzyme-free glucose sensing. CrystEngComm 2020. [DOI: 10.1039/c9ce01834d] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
A rhombicuboctahedral (26-facet) Cu2O single crystal, with well-developed {100}, {110} and {111} crystallographic planes, has attracted considerable attention due to its faceted synergistic effects in catalysis, sensing, and energy conversion.
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Affiliation(s)
- Haoqi Ren
- Engineering Research Center of Conducting Materials and Composite Technology
- Ministry of Education
- Shaanxi Engineering Research Centers of Metal-based Heterogeneous Materials and Advanced Manufacturing Technology
- Shaanxi Province Key Laboratory for Electrical Materials and Infiltration Technology
- School of Materials Science and Engineering
| | - Xin Zhang
- Engineering Research Center of Conducting Materials and Composite Technology
- Ministry of Education
- Shaanxi Engineering Research Centers of Metal-based Heterogeneous Materials and Advanced Manufacturing Technology
- Shaanxi Province Key Laboratory for Electrical Materials and Infiltration Technology
- School of Materials Science and Engineering
| | - Xiaochuan Zhang
- Engineering Research Center of Conducting Materials and Composite Technology
- Ministry of Education
- Shaanxi Engineering Research Centers of Metal-based Heterogeneous Materials and Advanced Manufacturing Technology
- Shaanxi Province Key Laboratory for Electrical Materials and Infiltration Technology
- School of Materials Science and Engineering
| | - Jie Cui
- Engineering Research Center of Conducting Materials and Composite Technology
- Ministry of Education
- Shaanxi Engineering Research Centers of Metal-based Heterogeneous Materials and Advanced Manufacturing Technology
- Shaanxi Province Key Laboratory for Electrical Materials and Infiltration Technology
- School of Materials Science and Engineering
| | - Qing Yang
- Engineering Research Center of Conducting Materials and Composite Technology
- Ministry of Education
- Shaanxi Engineering Research Centers of Metal-based Heterogeneous Materials and Advanced Manufacturing Technology
- Shaanxi Province Key Laboratory for Electrical Materials and Infiltration Technology
- School of Materials Science and Engineering
| | - Chuncai Kong
- School of Science
- State Key Laboratory for Mechanical Behavior of Materials
- MOE Key Laboratory for Non-Equilibrium Synthesis and Modulation of Condensed Matter
- Center of Suzhou Nano Science and Technology
- Xi'an Jiaotong University
| | - Zhimao Yang
- School of Science
- State Key Laboratory for Mechanical Behavior of Materials
- MOE Key Laboratory for Non-Equilibrium Synthesis and Modulation of Condensed Matter
- Center of Suzhou Nano Science and Technology
- Xi'an Jiaotong University
| | - Shaodong Sun
- Engineering Research Center of Conducting Materials and Composite Technology
- Ministry of Education
- Shaanxi Engineering Research Centers of Metal-based Heterogeneous Materials and Advanced Manufacturing Technology
- Shaanxi Province Key Laboratory for Electrical Materials and Infiltration Technology
- School of Materials Science and Engineering
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9
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Luo J, Hein C, Pierson JF, Mücklich F. Early-stage corrosion, ion release, and the antibacterial effect of copper and cuprous oxide in physiological buffers: Phosphate-buffered saline vs Na-4-(2-hydroxyethyl)-1-piperazineethanesulfonic acid. Biointerphases 2019; 14:061004. [PMID: 31830792 DOI: 10.1063/1.5123039] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023] Open
Abstract
Copper surfaces are well known for their antibacterial effects due to the release of copper ions. This benefit has been shown in many antibacterial efficiency tests, however, without considering the corrosion behaviors of copper in the physiological solutions, which could play an indispensable role in ion release from the metallic surface. This study compared the ground copper surface and sputtered cuprous oxide (Cu2O) coating in two common physiological buffers: phosphate-buffered saline (PBS) and Na-4-(2-hydroxyethyl)-1-piperazineethanesulfonic acid (Na-HEPES). The growth of the cuprous oxide (Cu2O) layer was found on copper in pure PBS, inhibiting further copper ion release. In contrast, a continuous release of copper ions was recorded in Na-HEPES for 3 h, where no oxide formation was observed. The antibacterial efficiency of copper (against E. coli) was measured and discussed with the ion release kinetics in the presence of E. coli. Similar results were obtained from Cu2O coating, ruling out its assisting role in showing the antibacterial property from copper surfaces, but they did indicate the importance of taking environmental parameters into consideration in interpreting the antibacterial efficiency of copper surfaces.
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Affiliation(s)
- Jiaqi Luo
- Functional Materials, Saarland University, 66123 Saarbruecken, Germany
| | - Christina Hein
- Inorganic Solid State Chemistry, Saarland University, 66123 Saarbruecken, Germany
| | | | - Frank Mücklich
- Functional Materials, Saarland University, 66123 Saarbruecken, Germany
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10
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Luo J, Hein C, Ghanbaja J, Pierson JF, Mücklich F. Bacteria accumulate copper ions and inhibit oxide formation on copper surface during antibacterial efficiency test. Micron 2019; 127:102759. [PMID: 31585250 DOI: 10.1016/j.micron.2019.102759] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2019] [Revised: 09/23/2019] [Accepted: 09/23/2019] [Indexed: 12/11/2022]
Abstract
Copper surface after antibacterial test against E. coli was examined in the aspect of corrosion. Results from scanning electron microscope (SEM), grazing incidence X-ray diffractometer (GIXRD) and Raman spectroscopy together confirmed less oxidation on copper surface with the presence of E. coli. The inhibition of the cuprous oxide (Cu2O) layer instead ensured the continuous exposure of copper surface, letting localised corrosion attacks observable and causing a stronger release of copper ions. These phenomena are attributed to the fact that E. coli act as ions reservoirs since high amount of copper accumulation were found by energy dispersive X-ray spectroscopy (EDS).
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Affiliation(s)
- Jiaqi Luo
- Functional Materials, Saarland University, Germany; Université de Lorraine, CNRS, IJL, F-54000, Nancy, France.
| | - Christina Hein
- Inorganic Solid State Chemistry, Saarland University, Germany
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11
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Khaldi Z, Ouk TS, Zerrouki R. Synthesis and antibacterial properties of thymol and carvacrol grafted onto lignocellulosic kraft fibers. J BIOACT COMPAT POL 2018. [DOI: 10.1177/0883911518783227] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
Bacterial infections and surface contaminations are worrying public health issues. It becomes urgent to find solutions. One of the ways to limit bacterial proliferation is to develop new antimicrobial materials. The phenolic compounds of essential oils like thymol and carvacrol, are attractive antibacterial candidates, which have gained great popularity in the food, cosmetic, and pharmaceutical industries. This work describes the elaboration of bioinspired antibacterial materials. Thymol and carvacrol are linked to kraft pulp fibers, via triazine link. This novel material has been investigated for its antibacterial properties against Escherichia coli and Staphylococcus aureus. The developed materials show very interesting antibacterial activity. The grafting of thymol and carvacrol by covalent bond allows to avoid the problem of their release and, thus, could maintain the antibacterial properties of support.
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Affiliation(s)
- Zineb Khaldi
- Laboratoire de Chimie des Substances Naturelles, Université de Limoges, Limoges, France
| | - Tan-Sothéa Ouk
- Laboratoire de Chimie des Substances Naturelles, Université de Limoges, Limoges, France
| | - Rachida Zerrouki
- Laboratoire de Chimie des Substances Naturelles, Université de Limoges, Limoges, France
- Centre de Recherche sur les Matériaux Lignocellulosiques, Université du Québec À Trois-Rivières, Trois-Rivières, QC, Canada
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12
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Borah R, Saikia E, Bora SJ, Chetia B. Banana pulp extract mediated synthesis of Cu2O nanoparticles: An efficient heterogeneous catalyst for the ipso-hydroxylation of arylboronic acids. Tetrahedron Lett 2017. [DOI: 10.1016/j.tetlet.2017.02.028] [Citation(s) in RCA: 42] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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13
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Emam HE, Ahmed HB, Bechtold T. In-situ deposition of Cu 2O micro-needles for biologically active textiles and their release properties. Carbohydr Polym 2017; 165:255-265. [PMID: 28363548 DOI: 10.1016/j.carbpol.2017.02.044] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2016] [Revised: 02/09/2017] [Accepted: 02/13/2017] [Indexed: 11/19/2022]
Abstract
Metal/metal oxide containing fibres are gradually increasing in textile industrialization recently, owing to their high potential for application as antimicrobial textiles. In this study, the reducing properties of cellulose were applied to synthesize cuprous oxide in-situ. The direct formation of Cu2O on viscose fabrics was achieved via quite simple technique in two subsequent steps: alkalization and sorption. Cu contents in fabrics before and after rinsing ranged between 45.2-86.4mmol/kg and 18.1-67.7mmol/kg, respectively. Uniform micro-needles of Cu2O were obtained with regular size and dimensions of 1.60±0.20μm in length and 0.13±0.03μm in width. Release of Cu1+/2+ ions from selected samples was studied in water, physiological fluid and artificial sweat. Copper containing fabrics exhibited a percent of 96.8-97.8% and 85.5-89.0% for reduction in microbial viability, which was tested for S. aureus (as gram positive bacteria), E. coli (as gram-negative bacteria) and C. albicans and A. niger (as fungal species), respectively after 24h contact time.
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Affiliation(s)
- Hossam E Emam
- Pretreatment and Finishing of Cellulosic Fibers, Textile Research Division, National Research Centre, Scopus Affiliation ID 60014618, El Buhouth St., Dokki, Cairo, 12622, Egypt.
| | - Hanan B Ahmed
- Chemistry Department, Faculty of Science, Helwan University, Ain-Helwan, Cairo, 11795, Egypt
| | - Thomas Bechtold
- Research Institute of Textile Chemistry and Textile Physics, University of Innsbruck, Hoechsterstrasse 73, A-6850 Dornbirn, Austria(1)
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Xiong L, Yu H, Nie C, Xiao Y, Zeng Q, Wang G, Wang B, Lv H, Li Q, Chen S. Size-controlled synthesis of Cu2O nanoparticles: size effect on antibacterial activity and application as a photocatalyst for highly efficient H2O2 evolution. RSC Adv 2017. [DOI: 10.1039/c7ra10605j] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Size-controlled synthesis and size-dependent antibacterial activity of Cu2O nanoparticles with high efficiency for H2O2 evolution.
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Affiliation(s)
- Liangbin Xiong
- School of Physics and Electronic-Information Engineering
- Hubei Engineering University
- Xiaogan
- China
| | - Huaqing Yu
- School of Physics and Electronic-Information Engineering
- Hubei Engineering University
- Xiaogan
- China
| | - Changjiang Nie
- School of Physics and Electronic-Information Engineering
- Hubei Engineering University
- Xiaogan
- China
| | - Yongjun Xiao
- School of Physics and Electronic-Information Engineering
- Hubei Engineering University
- Xiaogan
- China
| | - Qingdong Zeng
- School of Physics and Electronic-Information Engineering
- Hubei Engineering University
- Xiaogan
- China
| | - Guangjin Wang
- College of Chemistry and Materials Science
- Hubei Engineering University
- Xiaogan
- China
| | - Boyun Wang
- School of Physics and Electronic-Information Engineering
- Hubei Engineering University
- Xiaogan
- China
| | - Hao Lv
- School of Physics and Electronic-Information Engineering
- Hubei Engineering University
- Xiaogan
- China
| | - Qianguang Li
- School of Physics and Electronic-Information Engineering
- Hubei Engineering University
- Xiaogan
- China
| | - Shunsheng Chen
- Institute for Quantum Materials
- School of Mathematics and Physics
- Hubei Polytechnic University
- Huangshi
- China
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