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Skiba E, Pietrzak M, Michlewska S, Gruszka J, Malejko J, Godlewska-Żyłkiewicz B, Wolf WM. Photosynthesis governed by nanoparticulate titanium dioxide. The Pisum sativum L. case study. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2024; 340:122735. [PMID: 37848082 DOI: 10.1016/j.envpol.2023.122735] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/22/2022] [Revised: 10/10/2023] [Accepted: 10/12/2023] [Indexed: 10/19/2023]
Abstract
Wide availability of anthropogenic TiO2 nanoparticles facilitates their penetration into environment and prompts interactions with plants. They alter plants growth and change their nutritional status. In particular, metabolic processes are affected. In this work the effect of nanometric TiO2 on photosynthesis efficiency in green pea (Pisum sativum L.) was studied. Hydroponic cultivations with three Ti levels (10; 50 and 100 mg L-1) were applied. At all concentrations nanoparticles penetrated into plant tissues and were detected by the single particle ICP-MS/MS method. Nanoparticles altered the CO2 assimilation rate and gas exchange parameters (i.e. transpiration, stomatal conductance, sub-stomatal CO2 concentration). The most pronounced effects were observed for Ti 50 mg L-1 cultivation where photosynthesis efficiency, transpiration and stomatal conductance were increased by 14.69%, 4.58% and 8.92%, respectively. They were further confirmed by high maximum ribulose 1,5-bisphosphate carboxylation rate (27.40% increase), maximum electron transport rate (21.51% increase) and the lowest CO2 compensation point (45.19% decrease). Furthermore, concentrations of Cu, Mn, Zn, Fe, Mg, Ca, K and P were examined with the most pronounced changes observed for elements directly involved in photosynthesis (Cu, Zn, Mn, and Fe). The Cu concentrations in roots, stems and leaves for Ti 50 mg L-1 cultivation were below the control by 33.15%, 38.28% and 10.76%, respectively. The Zn content in analogous treatment and organs decreased by 30.24%, 26.69% and 13.35%. The Mn and Fe levels in leaves were increased by 72.22% and 50.32%, respectively. Our results indicated that plant defence mechanisms which restrain the water uptake have been overcome in pea by photocatalytic activity of nanoparticulate TiO2 which stimulated photosynthesis. On the contrary to the substantial stomatal conductance, the transpiration has been reduced because exceptional part of water flow was already consumed in chloroplasts and could not have been freed to the atmosphere.
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Affiliation(s)
- Elżbieta Skiba
- Institute of General and Ecological Chemistry, Lodz University of Technology, Poland.
| | - Monika Pietrzak
- Institute of General and Ecological Chemistry, Lodz University of Technology, Poland
| | - Sylwia Michlewska
- Faculty of Biology and Environmental Protection, Laboratory of Microscopic Imaging and Specialized Biological Techniques, University of Lodz, Poland
| | - Jakub Gruszka
- Department of Analytical and Inorganic Chemistry, Faculty of Chemistry, University of Bialystok, Poland
| | - Julita Malejko
- Department of Analytical and Inorganic Chemistry, Faculty of Chemistry, University of Bialystok, Poland
| | | | - Wojciech M Wolf
- Institute of General and Ecological Chemistry, Lodz University of Technology, Poland
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Ede JD, Diges AS, Zhang Y, Shatkin JA. Life-cycle risk assessment of graphene-enabled textiles in fire protection gear. NANOIMPACT 2024; 33:100488. [PMID: 37940075 DOI: 10.1016/j.impact.2023.100488] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/29/2023] [Revised: 10/06/2023] [Accepted: 11/03/2023] [Indexed: 11/10/2023]
Abstract
A nanomaterial life-cycle risk assessment (Nano LCRA) of a graphene-enabled textile used in the construction of heat and fire-resistant personal protective equipment (PPE) was conducted to develop, analyze, and prioritize potential occupational, health and environmental risks. The analysis identifies potential receptors and exposure pathways at each product life-cycle stage and makes a qualitative evaluation of the potential significance of each scenario. A literature review, quality evaluation, and database were developed as part of the LCRA to identify potential hazards associated with graphene-based materials (GBMs) throughout the product life-cycle. Generally, risks identified from graphene-enabled textiles were low. Of the developed exposure scenarios, occupational inhalation exposures during raw material and product manufacturing ranked highest. The analysis identifies the key potential human and environmental hazards and exposures of the products across the product life-cycle of graphene enabled textiles. Priority research gaps to reduce uncertainty include evaluating long-term, low dose graphene exposures typical of the workplace, as well as the potential release and hazard characterization of graphene-acrylic nanocomposites.
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Affiliation(s)
| | | | - Yueyang Zhang
- Vireo Advisors LLC, Boston, MA 02205, USA; University of Alberta, Edmonton, Alberta, Canada
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3
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Ramya RK, Theraka K, Ramprasadh SV, Bharathi SV, Srinivasan S, Jacob S, Kuila A. Pragmatic Treatment Strategies for Polyaromatic Hydrocarbon Remediation and Anti-biofouling from Surfaces Using Nano-enzymes: a Review. Appl Biochem Biotechnol 2023; 195:5479-5496. [PMID: 35138553 DOI: 10.1007/s12010-022-03848-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/31/2022] [Indexed: 11/02/2022]
Abstract
In this review, two important environmental pollutants have been considered for its potential remediation using microbial-derived nano-enzymes. Firstly, polyaromatic hydrocarbons (PAHs) are one of the major industrial contaminants in the environment due to their ubiquitous occurrence, toxicity, and proclivity for bioaccumulation. Secondly, biofouling due to biofilm-forming organisms that impact tremendous economic and environmental consequences in many industries, especially marine vessels where it causes an increase in hydrodynamic drag, which results in a loss of ship speed at constant power or a power increase to maintain the same speed with higher fuel consumption and emissions into the atmosphere, particularly Green House Gases (GHGs). Among the remediation strategies, biological routes are found to be promising, efficient, and sustainable. Natural ligninolytic enzymes such as MnP, LiP, laccase, peroxidases, and polysaccharide and protein degradative enzymes are found to be highly efficient for PAH degradation and antifouling respectively. However, large-scale usage of these enzymes is difficult due to various reasons like their poor stability, adaptation, and high-cost production of these enzymes. In recent years, the use of nanoparticles, particularly nano-enzymes, is found to be an innovative and synergistic approach to detoxify contaminated areas with concomitant maintenance of enzyme stability.
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Affiliation(s)
- Rajesh Khanna Ramya
- Department of Biotechnology, School of Bioengineering, College of Engineering and Technology, Faculty of Engineering and Technology, SRM Institute of Science and Technology, Chengalpattu Dist, SRM Nagar, Kattankulathur, 603203, Tamil Nadu, India
| | - Karthikeyan Theraka
- Department of Biotechnology, School of Bioengineering, College of Engineering and Technology, Faculty of Engineering and Technology, SRM Institute of Science and Technology, Chengalpattu Dist, SRM Nagar, Kattankulathur, 603203, Tamil Nadu, India
| | - Swaminathan Viji Ramprasadh
- Department of Biotechnology, School of Bioengineering, College of Engineering and Technology, Faculty of Engineering and Technology, SRM Institute of Science and Technology, Chengalpattu Dist, SRM Nagar, Kattankulathur, 603203, Tamil Nadu, India
| | - Sundaramoorthy Vijaya Bharathi
- Department of Biotechnology, School of Bioengineering, College of Engineering and Technology, Faculty of Engineering and Technology, SRM Institute of Science and Technology, Chengalpattu Dist, SRM Nagar, Kattankulathur, 603203, Tamil Nadu, India
| | - S Srinivasan
- Department of Biotechnology, School of Bioengineering, College of Engineering and Technology, Faculty of Engineering and Technology, SRM Institute of Science and Technology, Chengalpattu Dist, SRM Nagar, Kattankulathur, 603203, Tamil Nadu, India
| | - Samuel Jacob
- Department of Biotechnology, School of Bioengineering, College of Engineering and Technology, Faculty of Engineering and Technology, SRM Institute of Science and Technology, Chengalpattu Dist, SRM Nagar, Kattankulathur, 603203, Tamil Nadu, India.
| | - Arindam Kuila
- Department of Bioscience and Biotechnology, Banasthali Vidyapith, Banasthali, Rajasthan, 304022, India.
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4
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Li Z, Yin X, Lyu C, Wang T, Wang W, Zhang J, Wang J, Wang Z, Han C, Zhang R, Guo D, Xu R. Zinc oxide nanoparticles induce toxicity in diffuse large B-cell lymphoma cell line U2932 via activating PINK1/Parkin-mediated mitophagy. Biomed Pharmacother 2023; 164:114988. [PMID: 37307677 DOI: 10.1016/j.biopha.2023.114988] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2023] [Revised: 06/02/2023] [Accepted: 06/06/2023] [Indexed: 06/14/2023] Open
Abstract
Diffuse large B-cell lymphoma (DLBCL) is the most common type of lymphoma. Zinc oxide (ZnO) nanoparticles have excellent anti-tumor properties in the biomedical field. The present study aimed to explore the underlying mechanism by which ZnO nanoparticles induce toxicity in DLBCL cells (U2932) via the PINK1/Parkin-mediated mitophagy pathway. After U2932 cells were exposed to various concentrations of ZnO nanoparticles, the cell survival rate, reactive oxygen species (ROS) generation, cell cycle arrest, and changes in the expression of PINK1, Parkin, P62, and LC3 were monitored. Moreover, we investigated monodansylcadaverine (MDC) fluorescence intensity and autophagosome and further validated the results using the autophagy inhibitor 3-methyladenine (3-MA). The results showed that ZnO nanoparticles could effectively inhibit the proliferation of U2932 cells and induce cell cycle arrest at the G0/G1 phases. Moreover, ZnO nanoparticles significantly increased ROS production, MDC fluorescence intensity, autophagosome formation, and the expression of PINK1, Parkin, and LC3, and decreased the expression of P62 in U2932 cells. In contrast, the autophagy level was reduced after the intervention of the 3-MA. Overall, ZnO nanoparticles can trigger PINK1/Parkin-mediated mitophagy signaling in U2932 cells, which may be a potential therapeutic approach for DLBCL.
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Affiliation(s)
- Zonghong Li
- Shandong University of Traditional Chinese Medicine, Jinan, Shandong Province, China
| | - Xuewei Yin
- Shandong University of Traditional Chinese Medicine, Jinan, Shandong Province, China
| | - Chunyi Lyu
- Shandong University of Traditional Chinese Medicine, Jinan, Shandong Province, China
| | - Teng Wang
- Key Laboratory of Integrated Traditional Chinese and Western Medicine for Hematology, Health Commission of Shandong Province, Jinan 250014, China
| | - Wenhao Wang
- Shandong University of Traditional Chinese Medicine, Jinan, Shandong Province, China
| | - Jiachen Zhang
- Shandong University of Traditional Chinese Medicine, Jinan, Shandong Province, China
| | - Jinxin Wang
- Department of Hematology, the Affiliated Hospital of Shandong University of Traditional Chinese Medicine, No. 16369#, Jingshi Road, Jinan 250014, Shandong Province, China
| | - Zhenzhen Wang
- Department of Hematology, the Affiliated Hospital of Shandong University of Traditional Chinese Medicine, No. 16369#, Jingshi Road, Jinan 250014, Shandong Province, China
| | - Chen Han
- Shandong University of Traditional Chinese Medicine, Jinan, Shandong Province, China
| | - Ruixue Zhang
- Shandong University of Traditional Chinese Medicine, Jinan, Shandong Province, China
| | - Dadong Guo
- Shandong Provincial Key Laboratory of Integrated Traditional Chinese and Western Medicine for Prevention and Therapy of Ocular Diseases, Shandong Academy of Eye Disease Prevention and Therapy, Affiliated Eye Hospital of Shandong University of Traditional Chinese Medicine, No. 48#, Yingxiongshan Road, Jinan, Shandong Province, China.
| | - Ruirong Xu
- Key Laboratory of Integrated Traditional Chinese and Western Medicine for Hematology, Health Commission of Shandong Province, Jinan 250014, China; Department of Hematology, the Affiliated Hospital of Shandong University of Traditional Chinese Medicine, No. 16369#, Jingshi Road, Jinan 250014, Shandong Province, China; Institute of Hematology, Shandong University of Traditional Chinese Medicine, Jinan 250014, China.
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5
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Zhang C, Zhang Q, Zhao Y, Dong D, Huang L. Determination of Titanium (IV) Oxide Nanoparticles Released from Textiles by Single Particle – Inductively Coupled Plasma – Mass Spectrometry (SP-ICP-MS). ANAL LETT 2023. [DOI: 10.1080/00032719.2023.2195186] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/08/2023]
Affiliation(s)
- Chaoying Zhang
- State Key Laboratory Base for Eco-Chemical Engineering, College of Chemical Engineering, Qingdao University of Science and Technology, Qingdao, China
| | - Qin Zhang
- State Key Laboratory Base for Eco-Chemical Engineering, College of Chemical Engineering, Qingdao University of Science and Technology, Qingdao, China
| | - Yingchun Zhao
- State Key Laboratory Base for Eco-Chemical Engineering, College of Chemical Engineering, Qingdao University of Science and Technology, Qingdao, China
| | - Dianquan Dong
- State Key Laboratory Base for Eco-Chemical Engineering, College of Chemical Engineering, Qingdao University of Science and Technology, Qingdao, China
| | - Longjiang Huang
- State Key Laboratory Base for Eco-Chemical Engineering, College of Chemical Engineering, Qingdao University of Science and Technology, Qingdao, China
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6
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Szadkowski B, Piotrowska M, Rybiński P, Marzec A. Natural bioactive formulations for biodegradable cotton eco-fabrics with antimicrobial and fire-shielding properties. Int J Biol Macromol 2023; 237:124143. [PMID: 36972831 DOI: 10.1016/j.ijbiomac.2023.124143] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2022] [Revised: 03/14/2023] [Accepted: 03/20/2023] [Indexed: 03/28/2023]
Abstract
In this study, eco-friendly cotton fabrics with antimicrobial and flame-retardant properties were produced using newly developed bioactive formulations. The new natural formulations combine the biocidal properties of the biopolymer (chitosan (CS)) and essential oil (thyme oil) (EO) with the flame-retardant properties of mineral fillers (silica (SiO2), zinc oxide (ZnO), titanium dioxide (TiO2), and hydrotalcite (LDH)). The modified cotton eco-fabrics were analyzed in terms of morphology (optical and scanning electron microscopy (SEM)), color (spectrophotometric measurements), thermal stability (thermogravimetric analysis (TGA)), biodegradability, flammability (micro-combustion calorimetry (MCC)), and antimicrobial characteristics. The antimicrobial activity of the designed eco-fabrics was determined against different kinds of microorganism (S. aureus, E. coli, P. fluorescens, B. subtilis, A. niger, C. albicans). The antibacterial effects and flammability of the materials were found to depend strongly on the compositions of the bioactive formulation. The best results were obtained for the samples of fabric coated with the formulations containing LDH and TiO2 filler. These samples showed the highest decreases in flammability, with heat release rate (HRR) values of 168 (W/g) and 139 (W/g), respectively, compared to the reference (233 W/g). The samples also showed very good inhibition of growth against of all the studied bacteria.
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Affiliation(s)
- Bolesław Szadkowski
- Institute of Polymer and Dye Technology, Faculty of Chemistry, Lodz University of Technology, Stefanowskiego 16, 90-537 Lodz, Poland.
| | - Małgorzata Piotrowska
- Institute of Fermentation Technology and Microbiology, Faculty of Biotechnology and Food Sciences, Lodz University of Technology, Wolczanska 171/173, 90-530 Lodz, Poland
| | - Przemysław Rybiński
- Institute of Chemistry, The Jan Kochanowski University, Zeromskiego 5, 25-369 Kielce, Poland
| | - Anna Marzec
- Institute of Polymer and Dye Technology, Faculty of Chemistry, Lodz University of Technology, Stefanowskiego 16, 90-537 Lodz, Poland.
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7
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Schroer MA, Levish A, Yildizlar Y, Stepponat M, Winterer M. A versatile chemical vapor synthesis reactor for in situ x-ray scattering and spectroscopy. THE REVIEW OF SCIENTIFIC INSTRUMENTS 2022; 93:113706. [PMID: 36461417 DOI: 10.1063/5.0122461] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/24/2022] [Accepted: 10/16/2022] [Indexed: 06/17/2023]
Abstract
We describe a versatile reactor system for chemical vapor synthesis of nanoparticles, which enables in situ investigations of high temperature gas phase particle formation and transformation processes by x-ray scattering and x-ray absorption spectroscopy. The system employs an inductively heated hot wall reactor as the energy source to start nanoparticle formation from a mixture of precursor vapor and oxygen. By use of a modular set of susceptor segments, it is especially possible to change solely the residence time of the gas mixture while keeping all other process parameters (temperature, gas flow, pressure) constant. Corresponding time-temperature profiles are supported by computational fluid dynamics simulations. The operation of the system is demonstrated for two example studies: tin oxide nanoparticle formation studied by small angle x-ray scattering and iron oxide nanoparticle formation by x-ray absorption spectroscopy.
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Affiliation(s)
- Martin A Schroer
- Nanoparticle Process Technology (NPPT), Faculty of Engineering and CENIDE, University of Duisburg-Essen, Lotharstr. 1, 47057 Duisburg, Germany
| | - Alexander Levish
- Nanoparticle Process Technology (NPPT), Faculty of Engineering and CENIDE, University of Duisburg-Essen, Lotharstr. 1, 47057 Duisburg, Germany
| | - Yasin Yildizlar
- Nanoparticle Process Technology (NPPT), Faculty of Engineering and CENIDE, University of Duisburg-Essen, Lotharstr. 1, 47057 Duisburg, Germany
| | - Maximilian Stepponat
- Nanoparticle Process Technology (NPPT), Faculty of Engineering and CENIDE, University of Duisburg-Essen, Lotharstr. 1, 47057 Duisburg, Germany
| | - Markus Winterer
- Nanoparticle Process Technology (NPPT), Faculty of Engineering and CENIDE, University of Duisburg-Essen, Lotharstr. 1, 47057 Duisburg, Germany
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8
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Tumusiime G, Wambua P, Rwahwire S, Njuguna D, Yiga VA. Production and mechanical characterization of reinforced zinc oxide nanoparticle-coated silk waste bio-composites. Polym Bull (Berl) 2022. [DOI: 10.1007/s00289-022-04475-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
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Afzal F, Ashraf M, Manzoor S, Aziz H, Nosheen A, Riaz S. Development of novel antiviral nanofinishes for bioactive textiles. Polym Bull (Berl) 2022; 80:1-20. [PMID: 36124084 PMCID: PMC9476414 DOI: 10.1007/s00289-022-04461-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2021] [Revised: 09/07/2022] [Accepted: 09/07/2022] [Indexed: 11/05/2022]
Abstract
Virus-caused public health outbreaks represent a serious threat to humans all over the world. The rampant new 2019 coronavirus (SARS-CoV-2) has wreaked havoc on China and the rest of the world since December 2019. Now focus is on effective reduction of corona and other viral and bacterial infections in hospitals, public and private sectors, households, schools, etc. Metal and metal oxide nanoparticles, carbon nanotubes, heterostructures, patterned surfaces, and graphene-based materials have shown up to 99.9998% efficacy against bacteria, mold, and viruses. The stability, long shelf life, and robustness of inorganic nanoparticles make them desirable for antimicrobial nanofinishes. These inorganic antimicrobial agents are more stable than organic antibacterial compounds at high temperature and pressure. The high specific surface area-to-volume ratios and unique physicochemical characteristics of nanoparticles are largely responsible for their antibacterial actions. But their immobilization is a huge challenge. To address this issue, NPs were modified with (glycidoxypropyl) trimethoxysilane (GPTS) and applied on cotton fabric. The silane part of GPTS reacted with the NPs under acidic conditions while epoxy reacted with cotton under alkaline conditions. Treated cotton fabric showed good antiviral and antibacterial activity even after severe industrial washing. Graphical abstract
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Affiliation(s)
- Farheen Afzal
- Department of Applied Sciences, National Textile University, Faisalabad, 37610 Pakistan
| | - Munir Ashraf
- Functional Textiles Research Group, School of Engineering and Technology, Department of Textile Engineering, National Textile University, Faisalabad, 37610 Pakistan
| | - Sobia Manzoor
- Department of Environmental Science and Engineering, Govt. College University, Faisalabad, Pakistan
| | - Humaira Aziz
- Atta-ur-Rahman School of Applied Biosciences, NUST, Islamabad, Pakistan
| | - Anum Nosheen
- Functional Textiles Research Group, School of Engineering and Technology, Department of Textile Engineering, National Textile University, Faisalabad, 37610 Pakistan
| | - Shagufta Riaz
- Functional Textiles Research Group, School of Engineering and Technology, Department of Textile Engineering, National Textile University, Faisalabad, 37610 Pakistan
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Mekahlia S, Douadi T. Chitosan–ZnO nanocomposite from a circular economy perspective: in situ cotton-used fabric recycling and the nanocomposite recovering. Polym Bull (Berl) 2022. [DOI: 10.1007/s00289-021-03859-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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11
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A Novel Antipathogenic Agent for Nonwoven Fabric. BIOMEDICAL MATERIALS & DEVICES 2022. [PMCID: PMC9299416 DOI: 10.1007/s44174-022-00001-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/01/2022]
Abstract
AbstractMedical-grade masks and N95 respirators containing non-woven fibers are designed to prevent the spread of airborne diseases. While they effectively trap respiratory droplets and aerosols, they cannot lyse entrapped pathogens. Embedded antimicrobial agents such as silver, copper, zinc, iodine, peptides, quaternary ammonium salts, or nanoparticles have been used to overcome this limitation. However, their effectiveness remains debatable because these materials can be toxins, allergens, irritants, and environmental hazards. Recently, silicon nitride (Si3N4) was found to be a potent antipathogenic compound, and it may be an ideal agent for masks. In powder or solid form, it is highly effective in inactivating bacteria, fungi, and viruses while leaving mammalian tissue unaffected. The purpose of this study was to serially assess the antiviral efficacy of Si3N4 against SARS-CoV-2 using powders, solids, and embedded nonwoven fabrics. Si3N4 powders and solids were prepared using conventional ceramic processing. The “pad-dry-cure” method was used to embed Si3N4 particles into polypropylene fibers. Fabric testing was subsequently conducted using industrial standards—ISO 18184 for antiviral effectiveness, ASTM F2299 and EN 13274-7 for filtration efficiency, EN 14683 for differential pressure drop, and ISO 18562-2 for particle shedding. A modification of ISO 18562-3 was also employed to detect ammonia release from the fabric. Antiviral effectiveness for Si3N4 powders, solids, and embedded fabrics were 99.99% at ≤ 5 min, ~ 93% in 24 h, and 87% to 92% in 120 min, respectively. Results of the standard mask tests were generally within prescribed safety limits. Further process optimization may lead to commercial Si3N4-based masks that not only “catch” but also “kill” pathogenic microbes.
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Layer-By-Layer Self-Assembled Dip Coating for Antifouling Functionalized Finishing of Cotton Textile. Polymers (Basel) 2022; 14:polym14132540. [PMID: 35808585 PMCID: PMC9269539 DOI: 10.3390/polym14132540] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2022] [Revised: 04/28/2022] [Accepted: 04/29/2022] [Indexed: 02/02/2023] Open
Abstract
The fouling of surfaces such as textiles is a major health challenge, and there is a continuous effort to develop materials and processes to overcome it. In consideration of this, this study regards the development of antifouling functional nanoencapsulated finishing for the cotton textile fabric by employing a layer-by-layer dip coating technique. Antifouling textile finishing was formulated by inducing the nanoencapsulation of the antifouling functional group inside the hydrophobic polymeric shell. Cotton fabric was taken as a substrate to incorporate antibacterial functionality by alternatively fabricating multilayers of antifouling polymeric formulation (APF) and polyelectrolyte solution. The surface morphology of nanoencapsulated finished textile fabric was characterized through scanning electron microscopy to confirm the uniform distribution of nanoparticles on the cotton textile fabric. Optical profilometry and atomic force microscopy studies indicated increased surface roughness in the coated textile substrate as compared to the uncoated textile. The surface thickness of the fabricated textile increased with the number of deposited bilayers on the textile substrate. Surface hydrophobicity increased with number of coating bilayers with θ values of x for single layer, up to y for 20 bilayers. The antibacterial activity of the uncoated and layer-by-layer coated finished textile was also evaluated. It was significant and exhibited a significant zone of inhibition against microbial strains Gram-positive S. aureus and Gram-negative E. coli. The bilayer coating exhibited water repellency, hydrophobicity, and antibacterial activity. Thus, the fabricated textile could be highly useful for many industrial and biomedical applications.
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Arora S, Majumdar A. Face masks to fight against COVID-19 pandemics: A comprehensive review of materials, design, technology and product development. JOURNAL OF INDUSTRIAL TEXTILES 2022; 51:3613S-3647S. [PMID: 38603152 PMCID: PMC8883169 DOI: 10.1177/15280837211069869] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/13/2023]
Abstract
The outbreak of COVID-19 has created renewed attention on research and large scale manufacturing of face masks. In the last two decades, usage of face masks for respiratory protection has gained increased importance as a measure to control the maladies and fatalities due to exposure to particulate pollutants and toxic pathogens. Numerous variants of surgical and high-performance respirator masks are available in the market, and yet the fibrous materials science researchers, manufacturers and public health agencies are making concerted efforts towards improvising them with respect to self-sterilisability, facial fit, thermo-physiological comfort, reusability and biodegradability, while maintaining or rather enhancing the filtration efficiency. This review article presents a compendium of materials, design and performance standards of existing face masks, as well as elaborates on developments made for their performance enhancement. The criticality of inculcation of good hygiene habits and earnest compliance to correct mask donning and doffing practices has also been highlighted. This review is expected to make valuable contributions in the present COVID-19 scenario when donning a face mask has become mandatory.
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Affiliation(s)
- Sanchi Arora
- Department of Textile and Fibre Engineering, Indian Institute of Technology Delhi, New Delhi, India
| | - Abhijit Majumdar
- Department of Textile and Fibre Engineering, Indian Institute of Technology Delhi, New Delhi, India
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14
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Mehravani B, Ribeiro AI, Cvelbar U, Padrão J, Zille A. In Situ Synthesis of Copper Nanoparticles on Dielectric Barrier Discharge Plasma-Treated Polyester Fabrics at Different Reaction pHs. ACS APPLIED POLYMER MATERIALS 2022; 4:3908-3918. [PMID: 36568575 PMCID: PMC9778008 DOI: 10.1021/acsapm.2c00375] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/04/2023]
Abstract
Polyester (PET) fabrics are widely applied in functional textiles due to their outstanding properties such as high strength, dimensional stability, high melting point, low cost, recyclability, and flexibility. Nevertheless, the lack of polar groups in the PET structure makes its coloration and functionalization difficult. The present work reports the one-step in situ synthesis of copper nanoparticles (CuNPs) onto the PET fabric employing sodium hypophosphate and ascorbic acid as reducing and stabilizing agents, at acidic (pH 2) and alkaline pH (pH 11). This synthesis (i) used safer reagents when compared with traditional chemicals for CuNP production, (ii) was performed at a moderate temperature (85 °C), and (iii) used no protective inert gas. The dielectric barrier discharge (DBD) plasma was used as an environmentally friendly method for the surface functionalization of PET to enhance the adhesion of CuNPs. The size of the CuNPs in an alkaline reaction (76-156 nm for not treated and 93.4-123 nm for DBD plasma-treated samples) was found to be smaller than their size in acidic media (118-310 nm for not treated and 249-500 nm for DBD plasma-treated samples), where the DBD plasma treatment promoted some agglomeration. In acidic medium, metallic copper was obtained, and a reddish color became noticeable in the textile. In alkaline medium, copper(I) oxide (Cu2O) was detected, and the PET samples exhibited a yellow color. The PET samples with CuNPs presented improved ultraviolet protection factor values. Finally, a minimal concentration of copper salt was studied to obtain the optimized antibacterial effect against Staphylococcus aureus and Escherichia coli. The functionalized samples showed strong antibacterial efficacy using low-concentration solutions in the in situ synthesis (2.0 mM of copper salt) and even after five washing cycles. The DBD plasma treatment improved the antibacterial action of the samples prepared in the alkaline medium.
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Affiliation(s)
- Behnaz Mehravani
- 2C2T—Centre
for Textile Science and Technology, Department of Textile Engineering, University of Minho, Campus de Azurém, Guimarães 4800-058, Portugal
| | - Ana Isabel Ribeiro
- 2C2T—Centre
for Textile Science and Technology, Department of Textile Engineering, University of Minho, Campus de Azurém, Guimarães 4800-058, Portugal
| | - Uros Cvelbar
- Department
of Gaseous Electronics (F6), Jožef
Stefan Institute, Ljubljana SI-1000, Slovenia
- Faculty
of Mathematics and Physics, University of
Ljubljana, Ljubljana SI-1000, Slovenia
| | - Jorge Padrão
- 2C2T—Centre
for Textile Science and Technology, Department of Textile Engineering, University of Minho, Campus de Azurém, Guimarães 4800-058, Portugal
| | - Andrea Zille
- 2C2T—Centre
for Textile Science and Technology, Department of Textile Engineering, University of Minho, Campus de Azurém, Guimarães 4800-058, Portugal
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15
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Bhatt P, Pandey SC, Joshi S, Chaudhary P, Pathak VM, Huang Y, Wu X, Zhou Z, Chen S. Nanobioremediation: A sustainable approach for the removal of toxic pollutants from the environment. JOURNAL OF HAZARDOUS MATERIALS 2022; 427:128033. [PMID: 34999406 DOI: 10.1016/j.jhazmat.2021.128033] [Citation(s) in RCA: 29] [Impact Index Per Article: 14.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/02/2021] [Revised: 11/29/2021] [Accepted: 12/06/2021] [Indexed: 06/14/2023]
Abstract
In recent years, the proportion of organic and inorganic contaminants has increased rapidly due to growing human interference and represents a threat to ecosystems. The removal of these toxic pollutants from the environment is a difficult task. Physical, chemical and biological methods are implemented for the degradation of toxic pollutants from the environment. Among existing technologies, bioremediation in combination with nanotechnology is the most promising and cost-effective method for the removal of pollutants. Numerous studies have shown that exceptional characteristics of nanomaterials such as improved catalysis and adsorption properties as well as high reactivity have been subjects of great interest. There is an emerging trend of employing bacterial, fungal and algal cultures and their components, extracts or biomolecules as catalysts for the sustainable production of nanomaterials. They can serve as facilitators in the bioremediation of toxic compounds by immobilizing or inducing the synthesis of remediating microbial enzymes. Understanding the association between microorganisms, contaminants and nanoparticles (NPs) is of crucial importance. In this review, we focus on the removal of toxic pollutants using the cumulative effects of nanoparticles with microbial technology and their applications in different domains. Besides, we discuss how this novel nanobioremediation technique is significant and contributes towards sustainability.
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Affiliation(s)
- Pankaj Bhatt
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, Guangdong Province Key Laboratory of Microbial Signals and Disease Control, Integrative Microbiology Research Centre, South China Agricultural University, Guangzhou 510642, China; Guangdong Laboratory for Lingnan Modern Agriculture, Guangzhou 510642, China
| | - Satish Chandra Pandey
- Cell and Molecular Biology Laboratory, Department of Zoology, Soban Singh Jeena University, Almora, Uttarakhand, India
| | - Samiksha Joshi
- School of Agriculture Graphic Era Hill University Bhimtal, 263136, India
| | - Parul Chaudhary
- Department of Microbiology, College of Basic Sciences and Humanities, G.B Pant University of Agriculture and Technology, Pantnagar, Uttarakhand, India
| | - Vinay Mohan Pathak
- Department of Microbiology, University of Delhi, South Campus, 110021, India; Department of Botany & Microbiology, Gurukula Kangri (Deemed to be University), Haridwar, Uttarakhand 249404, India
| | - Yaohua Huang
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, Guangdong Province Key Laboratory of Microbial Signals and Disease Control, Integrative Microbiology Research Centre, South China Agricultural University, Guangzhou 510642, China; Guangdong Laboratory for Lingnan Modern Agriculture, Guangzhou 510642, China
| | - Xiaozhen Wu
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, Guangdong Province Key Laboratory of Microbial Signals and Disease Control, Integrative Microbiology Research Centre, South China Agricultural University, Guangzhou 510642, China; Guangdong Laboratory for Lingnan Modern Agriculture, Guangzhou 510642, China
| | - Zhe Zhou
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, Guangdong Province Key Laboratory of Microbial Signals and Disease Control, Integrative Microbiology Research Centre, South China Agricultural University, Guangzhou 510642, China; Guangdong Laboratory for Lingnan Modern Agriculture, Guangzhou 510642, China
| | - Shaohua Chen
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, Guangdong Province Key Laboratory of Microbial Signals and Disease Control, Integrative Microbiology Research Centre, South China Agricultural University, Guangzhou 510642, China; Guangdong Laboratory for Lingnan Modern Agriculture, Guangzhou 510642, China.
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16
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Fernandes M, Padrão J, Ribeiro AI, Fernandes RDV, Melro L, Nicolau T, Mehravani B, Alves C, Rodrigues R, Zille A. Polysaccharides and Metal Nanoparticles for Functional Textiles: A Review. NANOMATERIALS 2022; 12:nano12061006. [PMID: 35335819 PMCID: PMC8950406 DOI: 10.3390/nano12061006] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/13/2022] [Revised: 03/16/2022] [Accepted: 03/16/2022] [Indexed: 11/16/2022]
Abstract
Nanotechnology is a powerful tool for engineering functional materials that has the potential to transform textiles into high-performance, value-added products. In recent years, there has been considerable interest in the development of functional textiles using metal nanoparticles (MNPs). The incorporation of MNPs in textiles allows for the obtention of multifunctional properties, such as ultraviolet (UV) protection, self-cleaning, and electrical conductivity, as well as antimicrobial, antistatic, antiwrinkle, and flame retardant properties, without compromising the inherent characteristics of the textile. Environmental sustainability is also one of the main motivations in development and innovation in the textile industry. Thus, the synthesis of MNPs using ecofriendly sources, such as polysaccharides, is of high importance. The main functions of polysaccharides in these processes are the reduction and stabilization of MNPs, as well as the adhesion of MNPs onto fabrics. This review covers the major research attempts to obtain textiles with different functional properties using polysaccharides and MNPs. The main polysaccharides reported include chitosan, alginate, starch, cyclodextrins, and cellulose, with silver, zinc, copper, and titanium being the most explored MNPs. The potential applications of these functionalized textiles are also reported, and they include healthcare (wound dressing, drug release), protection (antimicrobial activity, UV protection, flame retardant), and environmental remediation (catalysts).
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17
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Tsegay F, Elsherif M, Butt H. Smart 3D Printed Hydrogel Skin Wound Bandages: A Review. Polymers (Basel) 2022; 14:polym14051012. [PMID: 35267835 PMCID: PMC8912626 DOI: 10.3390/polym14051012] [Citation(s) in RCA: 24] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2022] [Revised: 02/21/2022] [Accepted: 02/23/2022] [Indexed: 02/07/2023] Open
Abstract
Wounds are a major health concern affecting the lives of millions of people. Some wounds may pass a threshold diameter to become unrecoverable by themselves. These wounds become chronic and may even lead to mortality. Recently, 3D printing technology, in association with biocompatible hydrogels, has emerged as a promising platform for developing smart wound dressings, overcoming several challenges. 3D printed wound dressings can be loaded with a variety of items, such as antibiotics, antibacterial nanoparticles, and other drugs that can accelerate wound healing rate. 3D printing is computerized, allowing each level of the printed part to be fully controlled in situ to produce the dressings desired. In this review, recent developments in hydrogel-based wound dressings made using 3D printing are covered. The most common biosensors integrated with 3D printed hydrogels for wound dressing applications are comprehensively discussed. Fundamental challenges for 3D printing and future prospects are highlighted. Additionally, some related nanomaterial-based hydrogels are recommended for future consideration.
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18
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Ahmad S, Siddiqi WA, Ahmad S. Facile Hydrophilic Chitosan and Graphene Oxide Modified Sustainable Non-Woven Fabric Composite Sieve Membranes (NWF@Cs/Gx): Antifouling, Protein Rejection, and Oil-Water Emulsion Separation Studies. Chem Eng Res Des 2022. [DOI: 10.1016/j.cherd.2022.03.012] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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19
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Rujido-Santos I, Herbello-Hermelo P, Barciela-Alonso MC, Bermejo-Barrera P, Moreda-Piñeiro A. Metal Content in Textile and (Nano)Textile Products. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2022; 19:944. [PMID: 35055766 PMCID: PMC8775849 DOI: 10.3390/ijerph19020944] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 12/10/2021] [Revised: 01/11/2022] [Accepted: 01/12/2022] [Indexed: 02/04/2023]
Abstract
Metals, metallic compounds, and, recently, metallic nanoparticles appear in textiles due to impurities from raw materials, contamination during the manufacturing process, and/or their deliberate addition. However, the presence of lead, cadmium, chromium (VI), arsenic, mercury, and dioctyltin in textile products is regulated in Europe (Regulation 1907/2006). Metal determination in fabrics was performed by inductively coupled plasma-mass spectrometry (ICP-MS) after microwave-assisted acid digestion. The ICP-MS procedure has been successfully validated; relative standard deviations were up to 3% and analytical recoveries were within the 90-107% range. The developed method was applied to several commercial textiles, and special attention has been focused on textiles with nanofinishing (fabrics prepared with metallic nanoparticles for providing certain functionalities). Arsenic content (in textile T4) and lead content (in subsamples T1-1, T1-2, and T3-3) were found to exceed the maximum limits established by the European Regulation 1907/2006. Although impregnation of yarns with mercury compounds is not allowed, mercury was quantified in fabrics T1-2, T5, and T6. Further speciation studies for determining hexavalent chromium species in sample T9 are necessary (hexavalent chromium is the only species of chromium regulated). Some textile products commercialised in Europe included in this study do not comply with European regulation 1907/2006.
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Affiliation(s)
| | | | | | | | - Antonio Moreda-Piñeiro
- The Group of Trace Element, Spectroscopy, and Speciation (GETEE), Institute of Materials iMATUS, Department of Analytical Chemistry, Nutrition, and Bromatology, Faculty of Chemistry, Universidade de Santiago de Compostela, Avenida das Ciencias, s/n, 15782 Santiago de Compostela, Spain; (I.R.-S.); (P.H.-H.); (M.C.B.-A.); (P.B.-B.)
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20
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Pandey M, Wasnik K, Gupta S, Singh M, Patra S, Gupta P, Pareek D, Maity S, Tilak R, Paik P. Targeted specific inhibition of bacterial and Candida species by mesoporous Ag/Sn–SnO2 composite nanoparticles: in silico and in vitro investigation. RSC Adv 2022; 12:1105-1120. [PMID: 35425144 PMCID: PMC8978812 DOI: 10.1039/d1ra07594b] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2021] [Accepted: 12/15/2021] [Indexed: 02/06/2023] Open
Abstract
Invasive bacterial and fungal infections have notably increased the burden on the health care system and especially in immune compromised patients. These invasive bacterial and fungal species mimic and interact with the host extracellular matrix and increase the adhesion and internalization into the host system. Further, increased resistance of traditional antibiotics/antifungal drugs led to the demand for other therapeutics and preventive measures. Presently, metallic nanoparticles have wide applications in health care sectors. The present study has been designed to evaluate the advantage of Ag/Sn–SnO2 composite nanoparticles over the single oxide/metallic nanoparticles. By using in silico molecular docking approaches, herein we have evaluated the effects of Ag/Sn–SnO2 nanoparticles on adhesion and invasion responsible molecular targets such as LpfD (E. coli), Als3 (C. albicans) and on virulence/resistance causing PqsR (P. aeruginosa), RstA (Bmfr) (A. baumannii), FoxA (K. pneumonia), Hsp90 and Cyp51 (C. albicans). These Ag/Sn–SnO2 nanoparticles exhibited higher antimicrobial activities, especially against the C. albicans, which are the highest ever reported results. Further, Ag/Sn–SnO2 NPs exhibited interaction with the heme proionate residues such as Lys143, His468, Tyr132, Arg381, Phe105, Gly465, Gly464, Ile471 and Ile304 by forming hydrogen bonds with the Arg 381 residue of lanosterol 1 4α-demethylase and increased the inhibition of the Candida strains. Additionally, the Ag/Sn–SnO2 nanoparticles exhibited extraordinary inhibitory properties by targeting different proteins of bacteria and Candida species followed by several molecular pathways which indicated that it can be used to eliminate the resistance to traditional antibiotics. Mesoporous Ag/Sn–SnO2 composite nanoparticles exhibits extraordinary inhibitory properties by targeting different proteins of bacteria and Candida species which can be used to eliminate the resistance of traditional antibiotics.![]()
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Affiliation(s)
- Monica Pandey
- School of Engineering Sciences and Technology, University of Hyderabad, Telangana, 500046, India
| | - Kirti Wasnik
- School of Biomedical Engineering, Indian Institute of Technology, Banaras Hindu University (BHU), Varanasi, Uttar Pradesh, 221005, India
| | - Shubhra Gupta
- School of Biomedical Engineering, Indian Institute of Technology, Banaras Hindu University (BHU), Varanasi, Uttar Pradesh, 221005, India
| | - Monika Singh
- School of Biomedical Engineering, Indian Institute of Technology, Banaras Hindu University (BHU), Varanasi, Uttar Pradesh, 221005, India
| | - Sukanya Patra
- School of Biomedical Engineering, Indian Institute of Technology, Banaras Hindu University (BHU), Varanasi, Uttar Pradesh, 221005, India
| | - Premshankar Gupta
- School of Biomedical Engineering, Indian Institute of Technology, Banaras Hindu University (BHU), Varanasi, Uttar Pradesh, 221005, India
| | - Divya Pareek
- School of Biomedical Engineering, Indian Institute of Technology, Banaras Hindu University (BHU), Varanasi, Uttar Pradesh, 221005, India
| | - Somedutta Maity
- School of Engineering Sciences and Technology, University of Hyderabad, Telangana, 500046, India
| | - Ragini Tilak
- Institute of Medical Sciences, Banaras Hindu University (BHU), Varanasi, Uttar Pradesh, 221005, India
| | - Pradip Paik
- School of Biomedical Engineering, Indian Institute of Technology, Banaras Hindu University (BHU), Varanasi, Uttar Pradesh, 221005, India
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21
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Acorus calamus-zinc oxide nanoparticle coated cotton fabrics shows antimicrobial and cytotoxic activities against skin cancer cells. Process Biochem 2021. [DOI: 10.1016/j.procbio.2021.08.024] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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22
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The new generation fibers: a review of high performance and specialty fibers. Polym Bull (Berl) 2021. [DOI: 10.1007/s00289-021-03966-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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23
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Bello-Lopez JM, Silva-Bermudez P, Prado G, Martínez A, Ibáñez-Cervantes G, Cureño-Díaz MA, Rocha-Zavaleta L, Manzo-Merino J, Almaguer-Flores A, Ramos-Vilchis C, Rodil SE. Biocide effect against SARS-CoV-2 and ESKAPE pathogens of a noncytotoxic silver-copper nanofilm. Biomed Mater 2021; 17. [PMID: 34673548 DOI: 10.1088/1748-605x/ac3208] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2021] [Accepted: 10/21/2021] [Indexed: 02/07/2023]
Abstract
Nanometric materials with biocidal properties effective against severe acute respiratory syndrome-coronavirus-2 (SARS-CoV-2) and pathogenic bacteria could be used to modify surfaces, reducing the risk of touching transmission. In this work, we showed that a nanometric layer of bimetallic AgCu can be effectively deposited on polypropylene (PP) fibers. The virucidal properties of the AgCu nanofilm were evaluated by comparing the viral loads remaining on uncoated and coated PP after contact times between 2 and 24 h. Quantification of virion numbers for different initial concentrations indicated a reduction of more than 95% after 2 h of contact. The bactericidal action of the AgCu nanofilm was also confirmed by inoculating uncoated and coated PP with a pool of pathogenic bacteria associated with pneumonia (ESKAPE). Meanwhile, no cytotoxicity was observed for human fibroblasts and keratinocyte cells, indicating that the nanofilm could be in contact with human skin without threat. The deposition of the AgCu nanofilm on the nonwoven component of reusable cloth masks might help to prevent virus and bacterial infection while reducing the pollution burden related to the disposable masks. The possible mechanism of biocide contact action was studied by quantum chemistry calculations that show that the addition of Ag and/or Cu makes the polymeric fiber a better electron acceptor. This can promote the oxidation of the phospholipids present at both the virus and bacterial membranes. The rupture at the membrane exposes and damages the genetic material of the virus. More studies are needed to determine the mechanism of action, but the results reported here indicate that Cu and Ag ions are good allies, which can help protect us from the virus that has caused this disturbing pandemic.
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Affiliation(s)
- J M Bello-Lopez
- Dirección de Investigación. Hospital Juárez de México, Av. Instituto Politécnico Nacional 5160, Magdalena de las Salinas, Delegación Gustavo A. Madero, 07760 CDMX, México
| | - P Silva-Bermudez
- Unidad de ingeniería de Téjidos, Terapia Celular y Medicina Regenerativa; Instituto Nacional de Rehabilitación Luis Guillermo Ibarra-Ibarra, Av. México-Xochimilco No. 289 Col. Arenal de Guadalupe, C.P. 14389 CDMX, México
| | - G Prado
- Laboratorio de Biotecnología; Instituto Nacional de Rehabilitación Luis Guillermo Ibarra-Ibarra, Av. México-Xochimilco No. 289 Col. Arenal de Guadalupe, C.P. 14389 CDMX, México
| | - A Martínez
- Instituto de Investigaciones en Materiales, Universidad Nacional Autónoma de México. Circuito Exterior sn, Ciudad Universitaria, 04510 CDMX, México
| | - Gabriela Ibáñez-Cervantes
- Dirección de Investigación. Hospital Juárez de México, Av. Instituto Politécnico Nacional 5160, Magdalena de las Salinas, Delegación Gustavo A. Madero, 07760 CDMX, México
| | - Mónica Alethia Cureño-Díaz
- Dirección de Investigación. Hospital Juárez de México, Av. Instituto Politécnico Nacional 5160, Magdalena de las Salinas, Delegación Gustavo A. Madero, 07760 CDMX, México
| | - L Rocha-Zavaleta
- Departamento de Biología Molecular y Biotecnología, Instituto de Investigaciones Biomédicas, Universidad Nacional Autónoma de México, Circuito Escolar sn, Ciudad Universitaria, 04510 CDMX, México
| | - J Manzo-Merino
- Cátedras CONACyT-Instituto Nacional de Cancerología, CDMX, México
| | - A Almaguer-Flores
- Laboratorio de Biointerfases, Facultad de Odontología, División de Estudios de Posgrado e Investigación, Universidad Nacional Autónoma de México, 04510 CDMX, México
| | - C Ramos-Vilchis
- Instituto de Investigaciones en Materiales, Universidad Nacional Autónoma de México. Circuito Exterior sn, Ciudad Universitaria, 04510 CDMX, México
| | - S E Rodil
- Instituto de Investigaciones en Materiales, Universidad Nacional Autónoma de México. Circuito Exterior sn, Ciudad Universitaria, 04510 CDMX, México
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24
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Vázquez K, Vanegas P, Cruzat C, Novoa N, Arrué R, Vanegas E. Antibacterial and Antifungal Properties of Electrospun Recycled PET Polymeric Fibers Functionalized with Zinc Oxide Nanoparticles. Polymers (Basel) 2021; 13:3763. [PMID: 34771320 PMCID: PMC8587058 DOI: 10.3390/polym13213763] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2021] [Revised: 10/22/2021] [Accepted: 10/26/2021] [Indexed: 01/27/2023] Open
Abstract
Currently, to reduce the environmental problems associated with plastic waste, methods are being sought to use this waste as raw materials in different applications, such as fibers. In addition, to improve these materials and provide different properties, nanoparticles (NPs) are incorporated. In the present work, polymeric fibers made of recycled polyethylene terephthalate (r-PET) from post-consumer water bottles, functionalized with 0%, 1.5%, 3% and 6% zinc oxide nanoparticles (ZnO-NPs) in function of r-PET weight, were elaborated to evaluate their antibacterial and antifungal characteristics. The ZnO-NPs were synthesized by the solvothermal method, obtaining particles with a mean diameter of 38.15 nm, while the fibers were obtained by electrospinning with a diameter range between 200-5000 nm. The functionalized fibers were carried out against Escherichia coli and Bacillus subtilis through the agar diffusion method, obtaining the highest inhibition halo at 6% w/w ZnO-NPs, being 26.5 mm and 34.25 mm, respectively. In addition, the same method was used to evaluate the antifungal activity of Penicillium s.p. and Fusarium graminearum, observing antifungal properties due to the presence of nanoparticles in the fibers.
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Affiliation(s)
- Katherine Vázquez
- Chemical Engineering, Faculty of Chemical Sciences, University of Cuenca, Cuenca 010203, Ecuador;
| | - Paul Vanegas
- Department of Space and Population, Faculty of Chemical Sciences, University of Cuenca, Cuenca 010203, Ecuador;
| | - Christian Cruzat
- Center for Environmental Studies, Department of Applied Chemisty and Production Systems, Faculty of Chemical Sciences, University of Cuenca, Cuenca 010203, Ecuador;
| | - Néstor Novoa
- Laboratorio de Química Inorgánica y Organometálica, Departamento de Química Analítica e Inorgánica, Facultad de Ciencias Químicas, Universidad de Concepción, Edmundo Larenas 129, Casilla 160-C, Concepción 4070386, Chile; (N.N.); (R.A.)
| | - Ramón Arrué
- Laboratorio de Química Inorgánica y Organometálica, Departamento de Química Analítica e Inorgánica, Facultad de Ciencias Químicas, Universidad de Concepción, Edmundo Larenas 129, Casilla 160-C, Concepción 4070386, Chile; (N.N.); (R.A.)
| | - Eulalia Vanegas
- Center for Environmental Studies, Department of Applied Chemisty and Production Systems, Faculty of Chemical Sciences, University of Cuenca, Cuenca 010203, Ecuador;
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25
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León-Buitimea A, Garza-Cervantes JA, Gallegos-Alvarado DY, Osorio-Concepción M, Morones-Ramírez JR. Nanomaterial-Based Antifungal Therapies to Combat Fungal Diseases Aspergillosis, Coccidioidomycosis, Mucormycosis, and Candidiasis. Pathogens 2021; 10:pathogens10101303. [PMID: 34684252 PMCID: PMC8539376 DOI: 10.3390/pathogens10101303] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2021] [Revised: 10/02/2021] [Accepted: 10/03/2021] [Indexed: 12/23/2022] Open
Abstract
Over the last years, invasive infections caused by filamentous fungi have constituted a serious threat to public health worldwide. Aspergillus, Coccidioides, Mucorales (the most common filamentous fungi), and Candida auris (non-filamentous fungus) can cause infections in humans. They are able to cause critical life-threatening illnesses in immunosuppressed individuals, patients with HIV/AIDS, uncontrolled diabetes, hematological diseases, transplantation, and chemotherapy. In this review, we describe the available nanoformulations (both metallic and polymers-based nanoparticles) developed to increase efficacy and reduce the number of adverse effects after the administration of conventional antifungals. To treat aspergillosis and infections caused by Candida, multiple strategies have been used to develop new therapeutic alternatives, such as incorporating coating materials, complexes synthesized by green chemistry, or coupled with polymers. However, the therapeutic options for coccidioidomycosis and mucormycosis are limited; most of them are in the early stages of development. Therefore, more research needs to be performed to develop new therapeutic alternatives that contribute to the progress of this field.
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Affiliation(s)
- Angel León-Buitimea
- Facultad de Ciencias Químicas, Universidad Autónoma de Nuevo León (UANL), San Nicolás de los Garza C.P. 66455, Mexico; (A.L.-B.); (J.A.G.-C.); (D.Y.G.-A.); (M.O.-C.)
- Centro de Investigación en Biotecnología y Nanotecnología, Facultad de Ciencias Químicas, Parque de Investigación e Innovación Tecnológica, Universidad Autónoma de Nuevo León, Apodaca C.P. 66628, Mexico
| | - Javier A. Garza-Cervantes
- Facultad de Ciencias Químicas, Universidad Autónoma de Nuevo León (UANL), San Nicolás de los Garza C.P. 66455, Mexico; (A.L.-B.); (J.A.G.-C.); (D.Y.G.-A.); (M.O.-C.)
- Centro de Investigación en Biotecnología y Nanotecnología, Facultad de Ciencias Químicas, Parque de Investigación e Innovación Tecnológica, Universidad Autónoma de Nuevo León, Apodaca C.P. 66628, Mexico
| | - Diana Y. Gallegos-Alvarado
- Facultad de Ciencias Químicas, Universidad Autónoma de Nuevo León (UANL), San Nicolás de los Garza C.P. 66455, Mexico; (A.L.-B.); (J.A.G.-C.); (D.Y.G.-A.); (M.O.-C.)
| | - Macario Osorio-Concepción
- Facultad de Ciencias Químicas, Universidad Autónoma de Nuevo León (UANL), San Nicolás de los Garza C.P. 66455, Mexico; (A.L.-B.); (J.A.G.-C.); (D.Y.G.-A.); (M.O.-C.)
- Centro de Investigación en Biotecnología y Nanotecnología, Facultad de Ciencias Químicas, Parque de Investigación e Innovación Tecnológica, Universidad Autónoma de Nuevo León, Apodaca C.P. 66628, Mexico
| | - José Ruben Morones-Ramírez
- Facultad de Ciencias Químicas, Universidad Autónoma de Nuevo León (UANL), San Nicolás de los Garza C.P. 66455, Mexico; (A.L.-B.); (J.A.G.-C.); (D.Y.G.-A.); (M.O.-C.)
- Centro de Investigación en Biotecnología y Nanotecnología, Facultad de Ciencias Químicas, Parque de Investigación e Innovación Tecnológica, Universidad Autónoma de Nuevo León, Apodaca C.P. 66628, Mexico
- Correspondence:
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26
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Pehlivanoglu S, Acar CA, Donmez S. Characterization of green synthesized flaxseed zinc oxide nanoparticles and their cytotoxic, apoptotic and antimigratory activities on aggressive human cancer cells. INORG NANO-MET CHEM 2021. [DOI: 10.1080/24701556.2021.1980034] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
- Suray Pehlivanoglu
- Department of Molecular Biology and Genetics, Faculty of Science, Necmettin Erbakan University, Konya, Turkey
| | - Cigdem Aydin Acar
- Bucak School of Health, Burdur Mehmet Akif Ersoy University, Burdur, Turkey
| | - Soner Donmez
- Bucak School of Health, Burdur Mehmet Akif Ersoy University, Burdur, Turkey
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Nasef MM, Gupta B, Shameli K, Verma C, Ali RR, Ting TM. Engineered Bioactive Polymeric Surfaces by Radiation Induced Graft Copolymerization: Strategies and Applications. Polymers (Basel) 2021; 13:3102. [PMID: 34578003 PMCID: PMC8473120 DOI: 10.3390/polym13183102] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2021] [Revised: 09/03/2021] [Accepted: 09/05/2021] [Indexed: 11/16/2022] Open
Abstract
The interest in developing antimicrobial surfaces is currently surging with the rise in global infectious disease events. Radiation-induced graft copolymerization (RIGC) is a powerful technique enabling permanent tunable and desired surface modifications imparting antimicrobial properties to polymer substrates to prevent disease transmission and provide safer biomaterials and healthcare products. This review aims to provide a broader perspective of the progress taking place in strategies for designing various antimicrobial polymeric surfaces using RIGC methods and their applications in medical devices, healthcare, textile, tissue engineering and food packing. Particularly, the use of UV, plasma, electron beam (EB) and γ-rays for biocides covalent immobilization to various polymers surfaces including nonwoven fabrics, films, nanofibers, nanocomposites, catheters, sutures, wound dressing patches and contact lenses is reviewed. The different strategies to enhance the grafted antimicrobial properties are discussed with an emphasis on the emerging approach of in-situ formation of metal nanoparticles (NPs) in radiation grafted substrates. The current applications of the polymers with antimicrobial surfaces are discussed together with their future research directions. It is expected that this review would attract attention of researchers and scientists to realize the merits of RIGC in developing timely, necessary antimicrobial materials to mitigate the fast-growing microbial activities and promote hygienic lifestyles.
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Affiliation(s)
- Mohamed Mahmoud Nasef
- Advanced Materials Research Group, Center of Hydrogen Energy, Universiti Teknologi Malaysia, Jalan Sultan Yahya Putra, Kuala Lumpur 54100, Malaysia;
- Malaysia-Japan International Institute of Technology, Universiti Teknologi Malaysia, Kuala Lumpur 54100, Malaysia;
| | - Bhuvanesh Gupta
- Bioengineering Laboratory, Department of Textile Technology, Indian Institute of Technology, New Delhi 110016, India; (B.G.); (C.V.)
| | - Kamyar Shameli
- Malaysia-Japan International Institute of Technology, Universiti Teknologi Malaysia, Kuala Lumpur 54100, Malaysia;
| | - Chetna Verma
- Bioengineering Laboratory, Department of Textile Technology, Indian Institute of Technology, New Delhi 110016, India; (B.G.); (C.V.)
| | - Roshafima Rasit Ali
- Advanced Materials Research Group, Center of Hydrogen Energy, Universiti Teknologi Malaysia, Jalan Sultan Yahya Putra, Kuala Lumpur 54100, Malaysia;
- Malaysia-Japan International Institute of Technology, Universiti Teknologi Malaysia, Kuala Lumpur 54100, Malaysia;
| | - Teo Ming Ting
- Radiation Processing Technology Division, Malaysian Nuclear Agency, Kajang 43000, Malaysia;
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Li H, Li QQ, Hong Y. Global gene expression signatures in response to citrate-coated silver nanoparticles exposure. Toxicology 2021; 461:152898. [PMID: 34403730 DOI: 10.1016/j.tox.2021.152898] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2021] [Revised: 08/04/2021] [Accepted: 08/12/2021] [Indexed: 10/20/2022]
Abstract
Silver nanoparticles (AgNPs) are widely used in medical and commercial products for their unique antibacterial functions. However, the impact of AgNPs on human neural development is not well understood. To investigate the effect of AgNPs on human neural development, various doses of 20 nm citrate-coated AgNP (AgSC) were administered to human embryonic stem cell derived neural progenitors during the neuronal differentiation. Immunofluorescence staining with neuronal progenitor markers SOX2 (sex determining region Y-box 2) and Nestin (VI intermediate filament protein) showed that AgSC inhibited rosette formation, neuronal progenitor proliferation, and neurite outgrowth. Furthermore, AgSC promoted astrocyte activation and neuronal apoptosis. These adverse effects can be partially recovered with ascorbic acid. A genome-wide transcriptome analysis of both AgSC treated and untreated samples indicated that the most up-graduated genes were a group of Metallothionein (1F, 1E, 2A) proteins, a metal-binding protein that plays an essential role in metal homeostasis, heavy metal detoxification, and cellular anti-oxidative defence. The most significantly down-regulated genes were neuronal differentiation 6 (NEUROD6) and fork head box G1 (FOXG1). GO analyse indicated that the regulation of cholesterol biosynthetic process, neuron differentiation, synapse organization and pattern specification, oliogenesis, and neuronal apoptosis were the most impacted biological processes. KEGG pathway analyse showed that the most significantly impacted pathways were C5 isoprenoid, axon guidance, Notch, WNT, RAS-MAPK signalling pathways, lysosome, and apoptosis. Our data suggests that AgSCs interfered with metal homeostasis and cholesterol biosynthesis which induced oxidative stress, inhibited neurogenesis, axon guidance, and promoted apoptosis. Supplementation with ascorbic acid could act as an antioxidant to prevent AgSC-mediated neurotoxicity.
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Affiliation(s)
- Hao Li
- Key Laboratory of the Ministry of Education for Coastal and Wetland Ecosystem, College of the Environment and Ecology, Xiamen University, Xiamen, Fujian, 361102, China; Graduate College of Biomedical Sciences, Western University of Health Sciences, Pomona, CA, 91766-1854, USA
| | - Qingshun Q Li
- Key Laboratory of the Ministry of Education for Coastal and Wetland Ecosystem, College of the Environment and Ecology, Xiamen University, Xiamen, Fujian, 361102, China; Graduate College of Biomedical Sciences, Western University of Health Sciences, Pomona, CA, 91766-1854, USA.
| | - Yiling Hong
- College of Veterinary Medicine, Western University of Health Sciences, Pomona, CA, 91766-1854, USA.
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29
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Development of Advanced Textile Finishes Using Nano-Emulsions from Herbal Extracts for Organic Cotton Fabrics. COATINGS 2021. [DOI: 10.3390/coatings11080939] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
The development of textile finishing with improved functional properties has been a growing interest among industry and scientists worldwide. The recent global pandemic also enhanced the awareness amongst many toward improved hygiene and the use of antimicrobial textiles. Generally, natural herbal components are known to possess antimicrobial properties which are green and eco-friendly. This research reports a novel and innovative method of developing and optimising nano-emulsions using two combinations of herbal extracts produced from Moringa Oleifera, curry leaf, coconut oil (nano-emulsion 1) and other using Aegle marmelos with curry leaf and coconut oil (nano-emulsion 2). Nano-emulsions were optimised for their pH, thermal stability, and particle size, and percentage add-on. Organic cotton fabrics (20 and 60 gsm) were finished with nano-emulsions using continuous and batch processes and characterised for their surface morphology using scanning electron microscopy, energy dispersive X-ray (EDX) analysis and Fourier transform infrared spectroscopy (FTIR) analysis. The finished fabrics were evaluated for their Whiteness Index, assessed for antimicrobial resistance against Gram-positive (Staphylococcus aureus) and Gram-negative bacteria (Escherichia coli) using AATCC 100 and 147 methods. In addition, fabrics were assessed for their antifungal efficacy (AATCC 30), tensile strength and air permeability. Results suggested that finished organic fabrics with nano-emulsions had antimicrobial resistance, antifungal, wash fastness after 20 washing cycles, and sufficient strength. This novel finishing method suggests that organic cotton fabrics treated with nano-emulsions can be used as a durable antimicrobial textile for healthcare and hygiene textiles.
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30
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Guzman M, Arcos M, Dille J, Rousse C, Godet S, Malet L. Effect of the Concentration and the Type of Dispersant on the Synthesis of Copper Oxide Nanoparticles and Their Potential Antimicrobial Applications. ACS OMEGA 2021; 6:18576-18590. [PMID: 34337198 PMCID: PMC8319940 DOI: 10.1021/acsomega.1c00818] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/14/2021] [Accepted: 06/24/2021] [Indexed: 06/01/2023]
Abstract
The bactericidal properties of copper oxide nanoparticles have growing interest due to potential application in the medical area. The present research investigates the influence of sodium dodecyl sulfate (SDS) and poly(vinylpyrrolidone) (PVP) on the production of copper oxide nanoparticles prepared from copper sulfate (CuSO4) and sodium borohydride (NaBH4) solutions. Different analytical techniques were used to determine the crystal nature, mean size diameter, and surface morphology of the copper oxide nanoparticles. The X-ray diffraction (XRD) patterns showed formation of nanoparticles of cuprite (Cu2O) and tenorite (CuO) when PVP and SDS were added at the beginning of the reaction. In fact, when the Cu/PVP ratio was 1.62, Cu2O nanoparticles were obtained. In addition, nanoparticles of CuO were synthesized when the Cu/PVP ratios were 0.54 and 0.81. On the other hand, a mixture of copper oxides (CuO and Cu2O) and cuprite (Cu2O) was obtained when PVP (Cu/PVP = 0.81 and 1.62) and SDS (Cu/SDS = 0.90) were added 30 min after the beginning of the reaction. Transmission electron microscopy (TEM) images show agglomerated nanoparticles with a size distribution ranging from 2 to 60 nm, while individual particles have sizes between 4.1 ± 1.9 and 41.6 ± 12.8 nm. The Kirby-Bauer method for the determination of antibacterial activity shows that small CuO (4.1 ± 1.9 nm) and Cu2O (8.5 ± 5.3 nm) nanoparticles inhibit the growth of Escherichia coli, Staphylococcus aureus MRSA, S. aureus and Pseudomonas aeruginosa bacteria. The antibacterial test of cotton fabric impregnated with nanoparticles shows positive results. The determination of the optimal ratio of copper oxide nanoparticles per cm2 of fabric that are able to exhibit a good antibacterial activity is ongoing.
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Affiliation(s)
- Maribel Guzman
- Engineering
Department, Pontifical Catholic University
of Peru, Av. Universitaria 1801, Lima 32, Peru
| | - Mariella Arcos
- Sciences
Department, Pontifical Catholic University
of Peru, Av. Universitaria
1801, Lima 32, Peru
| | - Jean Dille
- 4MAT,
Université Libre de Bruxelles, CP 194/03, 50 Avenue Roosevelt, B-1050 Brussels, Belgium
| | - Céline Rousse
- LISM,
EA 4695, UFR Sciences Exactes et Naturelles, Université de
Reims Champagne-Ardenne, BP 1039, 51687 Reims cedex 2, France
| | - Stéphane Godet
- 4MAT,
Université Libre de Bruxelles, CP 194/03, 50 Avenue Roosevelt, B-1050 Brussels, Belgium
| | - Loïc Malet
- 4MAT,
Université Libre de Bruxelles, CP 194/03, 50 Avenue Roosevelt, B-1050 Brussels, Belgium
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31
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Ye L, Zhou Z, Shen Y, Jiang L. Silica Nanoparticle Deposition on Natural Fibrous Substrates: Kinetic and Thermodynamic Studies. Ind Eng Chem Res 2021. [DOI: 10.1021/acs.iecr.1c01881] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Long Ye
- Key Laboratory of Macromolecular Synthesis and Functionalization, Ministry of Education; Department of Polymer Science and Engineering, Zhejiang University, Hangzhou 310027, China
| | - Zhuxian Zhou
- Zhejiang Key Laboratory of Smart Biomaterials and Center for Bionanoengineering, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou 310027, China
| | - Youqing Shen
- Zhejiang Key Laboratory of Smart Biomaterials and Center for Bionanoengineering, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou 310027, China
| | - Liming Jiang
- Key Laboratory of Macromolecular Synthesis and Functionalization, Ministry of Education; Department of Polymer Science and Engineering, Zhejiang University, Hangzhou 310027, China
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32
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Mussel-Inspired Deposition of Ag Nanoparticles on Dopamine-Modified Cotton Fabric and Analysis of its Functional, Mechanical and Dyeing Properties. J Inorg Organomet Polym Mater 2021. [DOI: 10.1007/s10904-021-02034-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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33
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Synthesis of tunable high-thermal stability carbon dots via functionalization for applications in high-temperature environment. APPLIED NANOSCIENCE 2021. [DOI: 10.1007/s13204-021-01814-7] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
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34
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Lyu Z, Ghoshdastidar S, Rekha KR, Suresh D, Mao J, Bivens N, Kannan R, Joshi T, Rosenfeld CS, Upendran A. Developmental exposure to silver nanoparticles leads to long term gut dysbiosis and neurobehavioral alterations. Sci Rep 2021; 11:6558. [PMID: 33753813 PMCID: PMC7985313 DOI: 10.1038/s41598-021-85919-7] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2020] [Accepted: 02/25/2021] [Indexed: 12/13/2022] Open
Abstract
Due to their antimicrobial properties, silver nanoparticles (AgNPs) are used in a wide range of consumer products that includes topical wound dressings, coatings for biomedical devices, and food-packaging to extend the shelf-life. Despite their beneficial antimicrobial effects, developmental exposure to such AgNPs may lead to gut dysbiosis and long-term health consequences in exposed offspring. AgNPs can cross the placenta and blood–brain-barrier to translocate in the brain of offspring. The underlying hypothesis tested in the current study was that developmental exposure of male and female mice to AgNPs disrupts the microbiome–gut–brain axis. To examine for such effects, C57BL6 female mice were exposed orally to AgNPs at a dose of 3 mg/kg BW or vehicle control 2 weeks prior to breeding and throughout gestation. Male and female offspring were tested in various mazes that measure different behavioral domains, and the gut microbial profiles were surveyed from 30 through 120 days of age. Our study results suggest that developmental exposure results in increased likelihood of engaging in repetitive behaviors and reductions in resident microglial cells. Echo-MRI results indicate increased body fat in offspring exposed to AgNPs exhibit. Coprobacillus spp., Mucispirillum spp., and Bifidobacterium spp. were reduced, while Prevotella spp., Bacillus spp., Planococcaceae, Staphylococcus spp., Enterococcus spp., and Ruminococcus spp. were increased in those developmentally exposed to NPs. These bacterial changes were linked to behavioral and metabolic alterations. In conclusion, developmental exposure of AgNPs results in long term gut dysbiosis, body fat increase and neurobehavioral alterations in offspring.
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Affiliation(s)
- Zhen Lyu
- Department of Electrical Engineering and Computer Science, University of Missouri, Columbia, MO, 65212, USA
| | - Shreya Ghoshdastidar
- Department of Biomedical, Biological and Chemical Engineering, University of Missouri, Columbia, MO, 65211, USA
| | - Karamkolly R Rekha
- Department of Radiology, University of Missouri, Columbia, MO, 65212, USA
| | - Dhananjay Suresh
- Department of Biomedical, Biological and Chemical Engineering, University of Missouri, Columbia, MO, 65211, USA
| | - Jiude Mao
- Department of Biomedical Sciences, University of Missouri, Columbia, MO, 65212, USA.,MU Institute of Data Science and Informatics, University of Missouri, Columbia, MO, 65212, USA
| | - Nathan Bivens
- DNA Core Facility, University of Missouri, Columbia, MO, 65212, USA
| | - Raghuraman Kannan
- Department of Biomedical, Biological and Chemical Engineering, University of Missouri, Columbia, MO, 65211, USA.,Department of Radiology, University of Missouri, Columbia, MO, 65212, USA
| | - Trupti Joshi
- Department of Electrical Engineering and Computer Science, University of Missouri, Columbia, MO, 65212, USA. .,Department of Health Management and Informatics, University of Missouri, Columbia, MO, 65212, USA. .,MU Institute of Data Science and Informatics, University of Missouri, Columbia, MO, 65212, USA. .,Bond Life Sciences Center, University of Missouri, Columbia, MO, 65212, USA.
| | - Cheryl S Rosenfeld
- Department of Biomedical Sciences, University of Missouri, Columbia, MO, 65212, USA. .,MU Institute of Data Science and Informatics, University of Missouri, Columbia, MO, 65212, USA. .,Bond Life Sciences Center, University of Missouri, Columbia, MO, 65212, USA. .,Genetics Area Program, University of Missouri, Columbia, MO, 65212, USA. .,Thompson Center for Autism and Neurobehavioral Disorders, University of Missouri, Columbia, MO, 65212, USA. .,Department of Medical Pharmacology & Physiology, University of Missouri, Columbia, MO, 65212, USA.
| | - Anandhi Upendran
- Department of Medical Pharmacology & Physiology, University of Missouri, Columbia, MO, 65212, USA. .,MU-Institute of Clinical and Translational Science, University of Missouri, Columbia, MO, 65212, USA.
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35
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Rao BR, Kumar R, Haque S, Kumar JM, Rao TN, Kothapalli RVSN, Patra CR. Ag 2[Fe(CN) 5NO]-Fabricated Hydrophobic Cotton as a Potential Wound Healing Dressing: An In Vivo Approach. ACS APPLIED MATERIALS & INTERFACES 2021; 13:10689-10704. [PMID: 33621045 DOI: 10.1021/acsami.0c19904] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
There have been reports of different types of wound dressings for various functions and purposes. Cotton being one of the most widely used wound dressing material due to its non-toxic, biodegradable, and other properties is used for fabrication as well as in the form of scaffolds for faster and effective wound closure. Our research team has already demonstrated the role of silver nitroprusside nanoparticles (SNPNPs) for wound healing and antibacterial activity. In the current study, we have developed cotton fabric impregnated with SNPNPs (SNPCFs) which remain photo inert and displayed long-term antimicrobial activity due to the surface modification with the silver nitroprusside complex. These SNPCFs were characterized by various analytical techniques (XRD, FTIR, UV spectroscopy, TGA, TEM, FESEM, EDAX, ICP-OES). The fabricated cotton dressings with nanoparticles showed an improved water contact angle (113-130°) than that of bare cotton gauze (60°) and exhibited more antibacterial property in case of both Gram-negative bacteria (Klebsiella aerogenes and Escherichia coli) and Gram-positive bacteria (Pseudomonas aeruginosa and Bacillus subtilis) even after several washings. The biocompatible nature of SNPCFs was assessed by in vivo chorioallantoic membrane assay that showed no obstruction in the formation of blood vessels. The SNPCFs exhibited better wound healing activity compared to the bare cotton and AgCFs as observed in the C57BL6/J mouse. The histopathological investigation reveals increase in re-epithelialization and deposition of connective tissue. The macrophage (M2) counts in SNPCF-treated skin tissues were supportive of more wound healing activity than mice treated with cotton fabric impregnated with chemically synthesized silver nanoparticles. Based on biodistribution analysis using ICP-OES, the data illustrated that a significant amount of silver is absorbed in the skin tissues of mice as compared to the blood and kidney. Furthermore, the absence of silver from the vital organs (heart, liver, and kidney) corroborates our hypothesis that the SNPCFs can act excellently in treating wounds when topically applied over skin. Thereafter, all these results highlight a strong possibility that SNPCFs exemplify the potential as a new antimicrobial and wound healing agent in future times.
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Affiliation(s)
- Bonda Rama Rao
- Department of Applied Biology, CSIR-Indian Institute of Chemical Technology, Uppal Road, Tarnaka, Hyderabad 500007, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, Uttar Pradesh, India
| | - Rajnish Kumar
- Polymers & Functional Materials Division, CSIR-Indian Institute of Chemical Technology, Uppal Road, Tarnaka, Hyderabad 500007, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, Uttar Pradesh, India
| | - Shagufta Haque
- Department of Applied Biology, CSIR-Indian Institute of Chemical Technology, Uppal Road, Tarnaka, Hyderabad 500007, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, Uttar Pradesh, India
| | - Jerald Mahesh Kumar
- Animal House, CSIR-Centre for Cellular and Molecular Biology (CCMB), Hyderabad, Uppal Road, Tarnaka, Hyderabad 500007, India
| | - T Nageswara Rao
- Department of Analytical, CSIR-Indian Institute of Chemical Technology, Hyderabad 500007, India
| | - Raju V S N Kothapalli
- Polymers & Functional Materials Division, CSIR-Indian Institute of Chemical Technology, Uppal Road, Tarnaka, Hyderabad 500007, India
| | - Chitta Ranjan Patra
- Department of Applied Biology, CSIR-Indian Institute of Chemical Technology, Uppal Road, Tarnaka, Hyderabad 500007, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, Uttar Pradesh, India
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36
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Towards Selection Charts for Epoxy Resin, Unsaturated Polyester Resin and Their Fibre-Fabric Composites with Flame Retardants. MATERIALS 2021; 14:ma14051181. [PMID: 33802309 PMCID: PMC7959149 DOI: 10.3390/ma14051181] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/25/2021] [Revised: 02/22/2021] [Accepted: 02/26/2021] [Indexed: 11/22/2022]
Abstract
Epoxy and unsaturated polyester resins are the most used thermosetting polymers. They are commonly used in electronics, construction, marine, automotive and aircraft industries. Moreover, reinforcing both epoxy and unsaturated polyester resins with carbon or glass fibre in a fabric form has enabled them to be used in high-performance applications. However, their organic nature as any other polymeric materials made them highly flammable materials. Enhancing the flame retardancy performance of thermosetting polymers and their composites can be improved by the addition of flame-retardant materials, but this comes at the expense of their mechanical properties. In this regard, a comprehensive review on the recent research articles that studied the flame retardancy of epoxy resin, unsaturated polyester resin and their composites were covered. Flame retardancy performance of different flame retardant/polymer systems was evaluated in terms of Flame Retardancy index (FRI) that was calculated based on the data extracted from the cone calorimeter test. Furthermore, flame retardant selection charts that relate between the flame retardancy level with mechanical properties in the aspects of tensile and flexural strength were presented. This review paper is also dedicated to providing the reader with a brief overview on the combustion mechanism of polymeric materials, their flammability behaviour and the commonly used flammability testing techniques and the mechanism of action of flame retardants.
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Progress in Biodegradable Flame Retardant Nano-Biocomposites. Polymers (Basel) 2021; 13:polym13050741. [PMID: 33673607 PMCID: PMC7957674 DOI: 10.3390/polym13050741] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2021] [Revised: 02/22/2021] [Accepted: 02/24/2021] [Indexed: 11/17/2022] Open
Abstract
This paper summarizes the results obtained in the course of the development of a specific group of biocomposites with high functionality of flame retardancy, which are environmentally acceptable at the same time. Conventional biocomposites have to be altered through different modifications, to be able to respond to the stringent standards and environmental requests of the circular economy. The most commonly produced types of biocomposites are those composed of a biodegradable PLA matrix and plant bast fibres. Despite of numerous positive properties of natural fibres, flammability of plant fibres is one of the most pronounced drawbacks for their wider usage in biocomposites production. Most recent novelties regarding the flame retardancy of nanocomposites are presented, with the accent on the agents of nanosize (nanofillers), which have been chosen as they have low or non-toxic environmental impact, but still offer enhanced flame retardant (FR) properties. The importance of a nanofiller’s geometry and shape (e.g., nanodispersion of nanoclay) and increase in polymer viscosity, on flame retardancy has been stressed. Although metal oxydes are considered the most commonly used nanofillers there are numerous other possibilities presented within the paper. Combinations of clay based nanofillers with other nanosized or microsized FR agents can significantly improve the thermal stability and FR properties of nanocomposite materials. Further research is still needed on optimizing the parameters of FR compounds to meet numerous requirements, from the improvement of thermal and mechanical properties to the biodegradability of the composite products. Presented research initiatives provide genuine new opportunities for manufacturers, consumers and society as a whole to create a new class of bionanocomposite materials with added benefits of environmental improvement.
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Olmos D, González-Benito J. Polymeric Materials with Antibacterial Activity: A Review. Polymers (Basel) 2021; 13:613. [PMID: 33670638 PMCID: PMC7922637 DOI: 10.3390/polym13040613] [Citation(s) in RCA: 29] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2021] [Revised: 02/02/2021] [Accepted: 02/10/2021] [Indexed: 12/21/2022] Open
Abstract
Infections caused by bacteria are one of the main causes of mortality in hospitals all over the world. Bacteria can grow on many different surfaces and when this occurs, and bacteria colonize a surface, biofilms are formed. In this context, one of the main concerns is biofilm formation on medical devices such as urinary catheters, cardiac valves, pacemakers or prothesis. The development of bacteria also occurs on materials used for food packaging, wearable electronics or the textile industry. In all these applications polymeric materials are usually present. Research and development of polymer-based antibacterial materials is crucial to avoid the proliferation of bacteria. In this paper, we present a review about polymeric materials with antibacterial materials. The main strategies to produce materials with antibacterial properties are presented, for instance, the incorporation of inorganic particles, micro or nanostructuration of the surfaces and antifouling strategies are considered. The antibacterial mechanism exerted in each case is discussed. Methods of materials preparation are examined, presenting the main advantages or disadvantages of each one based on their potential uses. Finally, a review of the main characterization techniques and methods used to study polymer based antibacterial materials is carried out, including the use of single force cell spectroscopy, contact angle measurements and surface roughness to evaluate the role of the physicochemical properties and the micro or nanostructure in antibacterial behavior of the materials.
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Affiliation(s)
- Dania Olmos
- Department of Materials Science and Engineering and Chemical Engineering, Instituto de Química y Materiales Álvaro Alonso Barba (IQMAA), Universidad Carlos III de Madrid, Leganés, 28911 Madrid, Spain
| | - Javier González-Benito
- Department of Materials Science and Engineering and Chemical Engineering, Instituto de Química y Materiales Álvaro Alonso Barba (IQMAA), Universidad Carlos III de Madrid, Leganés, 28911 Madrid, Spain
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El-Bendary MA, Abdelraof M, Moharam ME, Elmahdy EM, Allam MA. Potential of silver nanoparticles synthesized using low active mosquitocidal Lysinibacillus sphaericus as novel antimicrobial agents. Prep Biochem Biotechnol 2021; 51:926-935. [PMID: 33529084 DOI: 10.1080/10826068.2021.1875236] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Abstract
Silver nanoparticles (AgNPs) were synthesized using extracellular filtrates of some Lysinibacillus sphaericus (Ls) strains under simple conditions. Ls synthesized AgNPs showed the optical absorption peaks at 388-412 nm as detected by UV-visible spectrophotometer. Transmission electron micrographs of bacterial synthesized AgNPs revealed that they were polycrystalline with spherical, hexagonal, cuboidal, rod and irregular shapes. The average diameter of the tested AgNPs were ranged from 14-21 nm and they were negatively charged as detected by DLS (-18.2 to -28.9). FTIR spectra showed the presence of nitrogenous biomolecules capping the synthesized AgNPs. The filtrates of tested Ls strains showed nitrate reductase activity (1.45-2.56 µmol/ml/min). Tested AgNPs showed bactericidal activity against Gram positive and Gram negative bacteria, fungicidal activity against yeast and filamentous fungi, and virucidal activity against rotavirus. In addition, it showed synergistic antimicrobial effect to cephradine and nizoarm against all tested microorganisms. Cytotoxicity test revealed the safety of the tested nanoparticles at tested concentrations.Finally, Ls strains represent microbial sources for ecofriendly, simple and economic biosynthesis of antimicrobial AgNPs. Also, this research may contribute to the medicinal chemistry and pharmaceutical industry for the development of new products used for the public health.
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Affiliation(s)
- Magda A El-Bendary
- Microbial Chemistry Department, Genetic Engineering and Biotechnology Research Division, National Research Centre, Dokki, Giza, Egypt
| | - Mohamed Abdelraof
- Microbial Chemistry Department, Genetic Engineering and Biotechnology Research Division, National Research Centre, Dokki, Giza, Egypt
| | - Maysa E Moharam
- Microbial Chemistry Department, Genetic Engineering and Biotechnology Research Division, National Research Centre, Dokki, Giza, Egypt
| | - Elmahdy M Elmahdy
- Water Pollution Research Department, Environmental Research Division, Environmental Virology Lab, National Research Centre, Dokki, Giza, Egypt
| | - Mousa A Allam
- Spectroscopy Department, Physics Division, National Research Centre, Dokki, Giza, Egypt
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40
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Wang X, Lu Y, Zhang Q, Wang K, Carmalt CJ, Parkin IP, Zhang Z, Zhang X. Durable fire retardant, superhydrophobic, abrasive resistant and air/UV stable coatings. J Colloid Interface Sci 2021; 582:301-311. [PMID: 32827955 DOI: 10.1016/j.jcis.2020.07.084] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2020] [Revised: 07/16/2020] [Accepted: 07/17/2020] [Indexed: 11/29/2022]
Abstract
Fabric-based materials such as textiles and papers are widely used in our daily life. However, most of conventional fabrics are highly combustible and easily stained by water and household liquids, susceptible to fire risks and surface contamination/staining. Herein, a non-fluorinated coating that contains the flame-retardants ammonium polyphosphate/pentaerythrotol (APP/PER) and water-repellent silica nanoparticles-polydimethylsiloxane (SiO2@PDMS) is developed. The coated fabric materials prevent fire propagation and are repellant to water, coffee, milk etc. The heat release rate of the SiO2@PDMS/APP/PER-coated cotton fabric is 46.33% lower than that of pure cotton fabric, and the amount of the char yield is increased by 40.4%. The coatings are durable, resistant to mechanical abrasion and have a long life-time exposure to corrosive liquids and intense UV radiation. The coated fabric materials also exhibit good organic solvent/oil and water separation capability at reduced risks of fire. The facile process can be extended to garment and paper industries to lower the fire risks and resist water stains.
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Affiliation(s)
- Xiaoyang Wang
- National & Local Joint Engineering Research Center for Applied Technology of Hybrid Nanomaterials, Henan University, Kaifeng 475004, PR China
| | - Yao Lu
- Department of Chemistry, School of Biological and Chemical Sciences, Queen Mary University of London, London E1 4NS, UK
| | - Qiaoran Zhang
- National & Local Joint Engineering Research Center for Applied Technology of Hybrid Nanomaterials, Henan University, Kaifeng 475004, PR China
| | - Keli Wang
- National & Local Joint Engineering Research Center for Applied Technology of Hybrid Nanomaterials, Henan University, Kaifeng 475004, PR China
| | - Claire J Carmalt
- Department of Chemistry, University College London, 20 Gordon Street, London WC1H 0AJ, UK
| | - Ivan P Parkin
- Department of Chemistry, University College London, 20 Gordon Street, London WC1H 0AJ, UK
| | - Zhijun Zhang
- National & Local Joint Engineering Research Center for Applied Technology of Hybrid Nanomaterials, Henan University, Kaifeng 475004, PR China
| | - Xia Zhang
- National & Local Joint Engineering Research Center for Applied Technology of Hybrid Nanomaterials, Henan University, Kaifeng 475004, PR China; State Key Laboratory of Solid Lubrication, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, PR China.
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41
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Miyakawa M, Shigaraki C, Nakamura T, Nishioka M. In situ microwave heating fabrication of copper nanoparticles inside cotton fiber using pressurization in immiscible liquids with raw material solutions. RSC Adv 2021; 11:32541-32548. [PMID: 35493598 PMCID: PMC9042215 DOI: 10.1039/d1ra04868f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2021] [Accepted: 09/23/2021] [Indexed: 11/21/2022] Open
Abstract
We developed a method for in situ fabrication of copper nanoparticles inside cotton fibers. Copper nanoparticles can be fabricated mainly in the central part of the fiber by absorbing a raw material solution and by applying microwave heating in a state where the raw material solution is pressed with immiscible liquids. Surface SEM images and cross-sectional EDS mapping for the fabricated fibers clarified that copper nanoparticles fabricated on the cotton surface were suppressed considerably more by the hydrophobic raw material solution than by the hydrophilic raw material solution. These cotton fibers containing copper nanoparticles were found to have antiviral properties against the influenza A virus. Copper nanoparticles were created inside of cotton fibers by pressuring immiscible liquids against raw material solutions and applying microwave heating.![]()
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Affiliation(s)
- Masato Miyakawa
- National Institute of Advanced Industrial Science and Technology, AIST, 4-2-1, Nigatake, Miyagino-ku, Sendai, 983-8551, Japan
| | - Chizuru Shigaraki
- National Institute of Advanced Industrial Science and Technology, AIST, 4-2-1, Nigatake, Miyagino-ku, Sendai, 983-8551, Japan
| | - Takashi Nakamura
- National Institute of Advanced Industrial Science and Technology, AIST, 4-2-1, Nigatake, Miyagino-ku, Sendai, 983-8551, Japan
| | - Masateru Nishioka
- National Institute of Advanced Industrial Science and Technology, AIST, 4-2-1, Nigatake, Miyagino-ku, Sendai, 983-8551, Japan
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42
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Saleem H, Zaidi SJ. Sustainable Use of Nanomaterials in Textiles and Their Environmental Impact. MATERIALS 2020; 13:ma13225134. [PMID: 33203051 PMCID: PMC7696606 DOI: 10.3390/ma13225134] [Citation(s) in RCA: 42] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/15/2020] [Revised: 11/05/2020] [Accepted: 11/09/2020] [Indexed: 12/11/2022]
Abstract
At present, nanotechnology is a priority in research in several nations due to its massive capability and financial impact. However, due to the uncertainties and abnormalities in shape, size, and chemical compositions, the existence of certain nanomaterials may lead to dangerous effects on the human health and environment. The present review includes the different advanced applications of nanomaterials in textiles industries, as well as their associated environmental and health risks. The four main textile industry fields using nanomaterials, nanofinishing, nanocoatings, nanofibers, and nanocomposites, are analyzed. Different functional textiles with nanomaterials are also briefly reviewed. Most textile materials are in direct and prolonged contact with our skin. Hence, the influence of carcinogenic and toxic substances that are available in textiles must be comprehensively examined. Proper recognition of the conceivable benefits and accidental hazards of nanomaterials to our surroundings is significant for pursuing its development in the forthcoming years. The conclusions of the current paper are anticipated to increase awareness on the possible influence of nanomaterial-containing textile wastes and the significance of better regulations in regards to the ultimate disposal of these wastes.
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43
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Beshah F, Hunde Y, Getachew M, Bachheti RK, Husen A, Bachheti A. Ethnopharmacological, phytochemistry and other potential applications of Dodonaea genus: A comprehensive review. CURRENT RESEARCH IN BIOTECHNOLOGY 2020. [DOI: 10.1016/j.crbiot.2020.09.002] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
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Gadkari R, Ali SW, Joshi M, Rajendran S, Das A, Alagirusamy R. Leveraging antibacterial efficacy of silver loaded chitosan nanoparticles on layer-by-layer self-assembled coated cotton fabric. Int J Biol Macromol 2020; 162:548-560. [DOI: 10.1016/j.ijbiomac.2020.06.137] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2020] [Revised: 05/29/2020] [Accepted: 06/14/2020] [Indexed: 12/28/2022]
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45
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Araújo CM, das Virgens Santana M, do Nascimento Cavalcante A, Nunes LCC, Bertolino LC, de Sousa Brito CAR, Barreto HM, Eiras C. Cashew-gum-based silver nanoparticles and palygorskite as green nanocomposites for antibacterial applications. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2020; 115:110927. [DOI: 10.1016/j.msec.2020.110927] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/10/2020] [Revised: 03/09/2020] [Accepted: 04/01/2020] [Indexed: 01/06/2023]
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46
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La2CuO4-decorated ZnO nanoparticles with improved photocatalytic activity for malachite green degradation. Chem Phys Lett 2020. [DOI: 10.1016/j.cplett.2020.137749] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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47
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Gonçalves J, Torres N, Silva S, Gonçalves F, Noro J, Cavaco-Paulo A, Ribeiro A, Silva C. Zein impart hydrophobic and antimicrobial properties to cotton textiles. REACT FUNCT POLYM 2020. [DOI: 10.1016/j.reactfunctpolym.2020.104664] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
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48
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Peer P, Sedlaříková J, Janalíková M, Kučerová L, Pleva P. Novel Polyvinyl Butyral/Monoacylglycerol Nanofibrous Membrane with Antifouling Activity. MATERIALS 2020; 13:ma13173662. [PMID: 32825117 PMCID: PMC7504434 DOI: 10.3390/ma13173662] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/10/2020] [Revised: 08/13/2020] [Accepted: 08/17/2020] [Indexed: 01/02/2023]
Abstract
Monoacylglycerols (MAGs) have proven of great interest to the foodstuffs industry due to the promising antibacterial activity they show for controlling microbial contamination. Prior to this paper, this antibacterial agent had not been incorporated in a nanofibrous membrane. This study details convenient fabrication of nanofibrous membranes based on polyvinyl butyral (PVB) containing various concentrations of monocaprin (MAG 10) by an electrospinning process. Increasing the concentration of MAG 10 caused differences to appear in the shape of the nanofibers, in addition to which the level of wettability was heightened. Besides exhibiting antibacterial properties, the functional membranes demonstrated especially good antifouling activity. The novel and efficient nanofibrous membranes described have the potential to find eventual application in medical or environmental fields.
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Affiliation(s)
- Petra Peer
- Institute of Hydrodynamics of the Czech Academy of Sciences, Pod Patankou 5/30, 16672 Prague, Czech Republic;
| | - Jana Sedlaříková
- Department of Fat, Surfactant and Cosmetics Technology, Faculty of Technology, Tomas Bata University in Zlin, 275 Vavreckova, 76001 Zlin, Czech Republic;
- Correspondence:
| | - Magda Janalíková
- Department of Environmental Protection Engineering, Faculty of Technology, Tomas Bata University in Zlin, 275 Vavreckova, 76001 Zlin, Czech Republic; (M.J.); (P.P.)
| | - Liliana Kučerová
- Department of Fat, Surfactant and Cosmetics Technology, Faculty of Technology, Tomas Bata University in Zlin, 275 Vavreckova, 76001 Zlin, Czech Republic;
| | - Pavel Pleva
- Department of Environmental Protection Engineering, Faculty of Technology, Tomas Bata University in Zlin, 275 Vavreckova, 76001 Zlin, Czech Republic; (M.J.); (P.P.)
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Montecarlo Simulation and HAXPES Analysis of Organosilane Segregation in Titania Xerogel Films; Towards a Generic Surface Chemofunctionalization Process. SURFACES 2020. [DOI: 10.3390/surfaces3030026] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
The formation of xerogels implies a sequence of hydrolysis and condensation reactions, which are intricate to analyze in heteromolecular sols. We analyze by probabilistic Montecarlo methods the development of hybrid organosilane–titania xerogels and illustrate how partial charges of the reacting molecules can help estimating relative probabilities for the condensation of the molecules. Since the condensation rate of Ti alkoxides is much higher than the corresponding rate of Si alkoxides (especially if bearing a non-hydrolizable group), by imposing a fast condensation process in agreement with low pH kinetics, the process leads to a surface segregation of the organosilane. The simulation results are compared with results of characterization of thin condensates of two different organosilanes within a titanium–isopropoxide matrix. Non-destructive in-depth profiles were obtained by hard x-ray photoelectron spectroscopy, which can resolve through estimation of Si and specific moieties of the organosilane molecules the progress of the condensation. These results are relevant for the generalization of chemo-functionalization processes by kinetic demixing of organosilanes, which have myriad applications in biomedicine and biotechnology.
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50
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El-Bendary MA, Afifi SS, Moharam ME, Abo El-Ola SM, Salama A, Omara EA, Shaheen MNF, Hamed AA, Gawdat NA. Biosynthesis of silver nanoparticles using isolated Bacillus subtilis: characterization, antimicrobial activity, cytotoxicity, and their performance as antimicrobial agent for textile materials. Prep Biochem Biotechnol 2020; 51:54-68. [PMID: 32701049 DOI: 10.1080/10826068.2020.1789992] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
Silver nanoparticles (AgNPs) have unique properties and a large range of applications. Biosynthesis of stable AgNPs using the extracellular filtrate of Bacillus subtilis was proved by the characteristic surface plasmon resonance at about 420-430 nm. They were polycrystalline with spherical, hexagonal, and irregular shapes and they were negatively charged (-40 mV) with an average diameter of 20 nm. FTIR spectrum confirmed the presence of protein molecules coating AgNPs. The optimum conditions for the synthesis of tested AgNPs were 1:6 filtrate dilution, 1 mM AgNO3, pH 7, 30 °C , 48 h contact time under static and illuminating conditions. The synthesized AgNPs showed antibacterial activities against Escherichia coli, Staphylococcus aureus, Pseudomonas aeruginosa, Bacillus cereus, and Salmonella typhi, antifungal activity against Candida albicans and antiviral activity against rotavirus. Also, they showed potent cytotoxic effects on lung and hepatic carcinoma human cell lines. Meanwhile, the acute toxicity study against mice showed no significant changes in hematological, biochemical, and histological parameters of AgNPs treated mice. They also showed mild hepatoprotective effect in thioacetamide (TAA) - induced hepatic fibrosis in rats. AgNPs treated textiles fabrics showed high antimicrobial activities against different pathogenic microorganisms as well as UV protection adequacy.
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Affiliation(s)
- Magda A El-Bendary
- Department of Microbial Chemistry, Genetic Engineering and Biotechnology Research Division, National Research Centre, Giza, Egypt
| | - Salwa S Afifi
- Department of Microbiology and Immunology, Faculty of Pharmacy for Girls, Al-Azhar University, Cairo, Egypt
| | - Maysa E Moharam
- Department of Microbial Chemistry, Genetic Engineering and Biotechnology Research Division, National Research Centre, Giza, Egypt
| | - Samiha M Abo El-Ola
- Department of Protein and Manmade Fibre, Textile Industries Research Division, National Research Centre, Giza, Egypt
| | - Abeer Salama
- Department of Pharmacology, National Research Centre, Giza, Egypt
| | - Enayat A Omara
- Department of Pathology, National Research Centre, Giza, Egypt
| | - Mohamed N F Shaheen
- Environmental Virology Lab., Department of Water Pollution Research, Environmental Research Division, National Research Centre, Giza, Egypt
| | - Ahmed A Hamed
- Department of Microbial Chemistry, Genetic Engineering and Biotechnology Research Division, National Research Centre, Giza, Egypt
| | - Noha A Gawdat
- Department of Microbial Chemistry, Genetic Engineering and Biotechnology Research Division, National Research Centre, Giza, Egypt
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