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Majeed H, Ahmad K, Bibi S, Iftikhar T, Ibrahim MM, Ruby T, Mersal GA, El-Bahy ZM, Qureshi K, Arif M, Naseem K, Shaheen S, Bhatti HN. Tamarindus indica seed polysaccharide-copper nanocomposite: An innovative solution for green environment and antimicrobial studies. Heliyon 2024; 10:e30927. [PMID: 38779003 PMCID: PMC11108828 DOI: 10.1016/j.heliyon.2024.e30927] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2023] [Revised: 05/02/2024] [Accepted: 05/08/2024] [Indexed: 05/25/2024] Open
Abstract
The purpose of this study was to synthesize ecofriendly nano-composite in which agricultural waste (seeds of Tamarindus indica) was used to synthesize tamarind seed polysaccharides (TSP) and its composite with copper nanoparticles (Cu-NPs) for the purpose of green and clean environment as well as reduction of green-house gases. Confirmation of extracted TSP, synthesized nanocomposite was carried out using FTIR, SEM, PXRD and EDX techniques. In FTIR analysis TSP gives a strong broad peak at 3331 cm-1 due to -OH group and in case of composite its intensity is reduced which might be due to the interactions between -OH and Cu+2 ions. SEM analysis gives that TSP have irregular and rough surface while Cu-NPs exhibited spherical morphology and composite showed clustering of spherical shape to rough surface. EDX analysis quantitatively represented copper having atomic ratio 0.57 % which confirms the synthesis of composite. Furthermore, synthesized composite demonstrated excellent antibacterial activity against gram-positive (S.aureus) and gram-negative bacteria (E.coli) even greater than standard medicine (ciprofloxacin). From this study it was revealed that agriculture waste can be utilized to make environment green as well as synthesized composite from agricultural waste seed also displayed excellent antimicrobial activities which directs that they can be utilized in medical field. This study aims to assess the antimicrobial properties of the nanocomposite, aiming to contribute to the development of effective antimicrobial agents. Through these objectives, the research seeks to bridge the gap between green technology and antimicrobial efficacy, offering a promising avenue for both environmental conservation and healthcare advancements.
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Affiliation(s)
- Hammad Majeed
- Department of Chemistry, University of Management and Technology (UMT), Sialkot Campus, 51310, Pakistan
| | - Khalil Ahmad
- Department of Chemistry, Emerson University Multan (EUM), Multan, 60000, Punjab, Pakistan
| | - Sadia Bibi
- Department of Chemistry, University of Agriculture Faisalabad, Pakistan
| | - Tehreema Iftikhar
- Department of Botany, Applied Botany Lab, GC University, Lahore, 54000, Pakistan
| | - Mohamed M. Ibrahim
- Department of Chemistry, College of Science, Taif University, P.O. Box 11099, Taif, 21944, Saudi Arabia
| | - Tahira Ruby
- Institute of Zoology, Bahauddin Zakariya University Multan, 60800, Pakistan
| | - Gaber A.M. Mersal
- Department of Chemistry, College of Science, Taif University, P.O. Box 11099, Taif, 21944, Saudi Arabia
| | - Zeinhom M. El-Bahy
- Department of Chemistry, Faculty of Science, Al-Azhar University, Nasr City, 11884, Cairo, Egypt
| | - Khizar Qureshi
- Department of Chemistry, University of Management and Technology (UMT), Sialkot Campus, 51310, Pakistan
| | - Muhammad Arif
- Department of Chemistry, School of Science, University of Management and Technology, Lahore, 54770, Pakistan
| | - Khalida Naseem
- Department of Basic and Applied Chemistry, Faculty of Science and Technology, University of Central Punjab Lahore, Pakistan
| | - Shabnum Shaheen
- Department of Botany, Lahore College for Women University, Lahore, Pakistan
| | - Haq Nawaz Bhatti
- Department of Chemistry, University of Agriculture Faisalabad, Pakistan
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Bento de Carvalho T, Barbosa JB, Teixeira P. Assessing Antimicrobial Efficacy on Plastics and Other Non-Porous Surfaces: A Closer Look at Studies Using the ISO 22196:2011 Standard. BIOLOGY 2024; 13:59. [PMID: 38275735 PMCID: PMC10813364 DOI: 10.3390/biology13010059] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/13/2023] [Revised: 01/16/2024] [Accepted: 01/18/2024] [Indexed: 01/27/2024]
Abstract
The survival and spread of foodborne and nosocomial-associated bacteria through high-touch surfaces or contamination-prone sites, in either healthcare, domestic or food industry settings, are not always prevented by the employment of sanitary hygiene protocols. Antimicrobial surface coatings have emerged as a solution to eradicate pathogenic bacteria and prevent future infections and even outbreaks. Standardised antimicrobial testing methods play a crucial role in validating the effectiveness of these materials and enabling their application in real-life settings, providing reliable results that allow for comparison between antimicrobial surfaces while assuring end-use product safety. This review provides an insight into the studies using ISO 22196, which is considered the gold standard for antimicrobial surface coatings and examines the current state of the art in antimicrobial testing methods. It primarily focuses on identifying pitfalls and how even small variations in methods can lead to different results, affecting the assessment of the antimicrobial activity of a particular product.
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Affiliation(s)
| | - Joana Bastos Barbosa
- Universidade Católica Portuguesa, Laboratório Associado, CBQF—Centro de Biotecnologia e Química Fina, Escola Superior de Biotecnologia, Rua Diogo Botelho 1327, 4169-005 Porto, Portugal; (T.B.d.C.); (P.T.)
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3
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Liu H, Lin R, Huang Z, Yin X, Lin X, Lin W, Li Y, Gu Y, Yi G. Modified ethylene/α‐octene co‐polymer elastomer composites with sacrificial bonds crosslinking networks and their reinforced mechanical performance. POLYM ENG SCI 2023. [DOI: 10.1002/pen.26254] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Affiliation(s)
- Huameng Liu
- School of Chemical Engineering and Light Industry Guangdong University of Technology Guangzhou China
| | - Ruijun Lin
- School of Chemical Engineering and Light Industry Guangdong University of Technology Guangzhou China
| | - Zhiyi Huang
- School of Chemical Engineering and Light Industry Guangdong University of Technology Guangzhou China
| | - Xingshan Yin
- School of Chemical Engineering and Light Industry Guangdong University of Technology Guangzhou China
| | - Xiaofeng Lin
- School of Chemical Engineering and Light Industry Guangdong University of Technology Guangzhou China
- Jieyang Branch of Chemistry and Chemical Engineering Guangdong Laboratory (Rongjiang Laboratory), School of Advanced Manufacturing Jieyang China
| | - Wenjing Lin
- School of Chemical Engineering and Light Industry Guangdong University of Technology Guangzhou China
- Jieyang Branch of Chemistry and Chemical Engineering Guangdong Laboratory (Rongjiang Laboratory), School of Advanced Manufacturing Jieyang China
| | - Yong Li
- Kinte Material Technology Co., Ltd. Dongguan China
| | - Yuxin Gu
- Kinte Material Technology Co., Ltd. Dongguan China
| | - Guobin Yi
- School of Chemical Engineering and Light Industry Guangdong University of Technology Guangzhou China
- Jieyang Branch of Chemistry and Chemical Engineering Guangdong Laboratory (Rongjiang Laboratory), School of Advanced Manufacturing Jieyang China
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4
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Natural Additives Improving Polyurethane Antimicrobial Activity. Polymers (Basel) 2022; 14:polym14132533. [PMID: 35808578 PMCID: PMC9269143 DOI: 10.3390/polym14132533] [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: 05/13/2022] [Revised: 06/10/2022] [Accepted: 06/15/2022] [Indexed: 01/20/2023] Open
Abstract
In recent years, there has been a growing interest in using polymers with antibacterial and antifungal properties; therefore, the present review is focused on the effect of natural compounds on the antibacterial and antifungal properties of polyurethane (PUR). This topic is important because materials and objects made with this polymer can be used as antibacterial and antifungal ones in places where hygiene and sterile conditions are particularly required (e.g., in healthcare, construction industries, cosmetology, pharmacology, or food industries) and thus can become another possibility in comparison to commonly used disinfectants, which mostly show high toxicity to the environment and the human health. The review presents the possibilities of using natural extracts as antibacterial, antifungal, and antiviral additives, which, in contrast to the currently used antibiotics, have a much wider effect. Antibiotics fight bacterial infections by killing bacteria (bactericidal effect) or slowing and stopping their growth (bacteriostatic effect) and effect on different kinds of fungi, but they do not fight viruses; therefore, compounds of natural origin can find wide use as biocidal substances. Fungi grow in almost any environment, and they reproduce easily in dirt and wet spaces; thus, the development of antifungal PUR foams is focused on avoiding fungal infections and inhibiting growth. Polymers are susceptible to microorganism adhesion and, consequently, are treated and modified to inhibit fungal and bacterial growth. The ability of micro-organisms to grow on polyurethanes can cause human health problems during the use and storage of polymers, making it necessary to use additives that eliminate bacteria, viruses, and fungi.
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5
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Overview of antimicrobial polyurethane-based nanocomposite materials and associated signalling pathways. Eur Polym J 2022. [DOI: 10.1016/j.eurpolymj.2022.111087] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
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6
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Pandey M, Singh M, Wasnik K, Gupta S, Patra S, Gupta PS, Pareek D, Chaitanya NSN, Maity S, Reddy ABM, Tilak R, Paik P. Targeted and Enhanced Antimicrobial Inhibition of Mesoporous ZnO-Ag 2O/Ag, ZnO-CuO, and ZnO-SnO 2 Composite Nanoparticles. ACS OMEGA 2021; 6:31615-31631. [PMID: 34869986 PMCID: PMC8637601 DOI: 10.1021/acsomega.1c04139] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/03/2021] [Accepted: 11/08/2021] [Indexed: 05/04/2023]
Abstract
In this work, mesoporous (pore size below 4 nm) composite nanoparticles of ZnO-Ag2O/Ag, ZnO-CuO, and ZnO-SnO2 of size d ≤ 10 nm (dia.) have been synthesized through the in situ solvochemical reduction method using NaBH4. These composite nanoparticles exhibited excellent killing efficacy against Gram-positive/negative bacterial and fungal strains even at a very low dose of 0.010 μg/mL. Additionally, by applying the in silico docking approach, the nanoparticles and microorganism-specific targeted proteins and their interactions have been identified to explain the best anti-bacterial/anti-fungal activities of these composites. For this purpose, the virulence and resistance causing target proteins such as PqsR, RstA, FosA, and Hsp90 of Pseudomonas aeruginosa, Acinetobacter baumannii, Klebsiella pneumoniae, and Candida albicans have been identified to find out the best inhibitory action mechanisms involved. From the in vitro study, it is revealed that all the composite nanoparticle types used here can act as potent antimicrobial components. All the composite nanoparticles have exhibited excellent inhibition against the microorganisms compared to their constituent single metal or metal oxide nanoparticles. Among the nanoparticle types, the ZnO-Ag2O/Ag composite nanoparticles exhibited the best inhibition activity compared to the other reported nanoparticles. The microorganisms which are associated with severe infections lead to the multidrug resistance and have become a huge concern in the healthcare sector. Conventional organic antibiotics are less stable at a higher temperature. Therefore, based on the current demands, this work has been focused on designing inorganic antibiotics which possess stability even under harsh conditions. In this direction, our developed composite nanoparticles were explored for potential uses in the healthcare technology, and they may solve many problems in global emergency and epidemics caused by the microorganisms.
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Affiliation(s)
- Monica Pandey
- School
of Engineering Sciences and Technology, University of Hyderabad, Hyderabad, Telangana 500046, India
| | - Monika Singh
- School
of Biomedical Engineering, Indian Institute of Technology, Banaras Hindu University (BHU), Varanasi, Uttar Pradesh 221005, 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
| | - Sukanya Patra
- School
of Biomedical Engineering, Indian Institute of Technology, Banaras Hindu University (BHU), Varanasi, Uttar Pradesh 221005, India
| | - Prem Shankar 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
| | - Nyshadham Sai Naga Chaitanya
- Department
of Animal Science, School of Life Sciences, University of Hyderabad, Hyderabad, Telangana 500046, India
| | - Somedutta Maity
- School
of Engineering Sciences and Technology, University of Hyderabad, Hyderabad, Telangana 500046, India
| | - Aramati B. M. Reddy
- Department
of Animal Science, School of Life Sciences, University of Hyderabad, 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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Janczak K, Kosmalska D, Kaczor D, Raszkowska-Kaczor A, Wedderburn L, Malinowski R. Bactericidal and Fungistatic Properties of LDPE Modified with a Biocide Containing Metal Nanoparticles. MATERIALS (BASEL, SWITZERLAND) 2021; 14:4228. [PMID: 34361422 PMCID: PMC8347296 DOI: 10.3390/ma14154228] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/08/2021] [Revised: 07/12/2021] [Accepted: 07/12/2021] [Indexed: 12/31/2022]
Abstract
The aim of this study was to ascertain whether the combined action of metal nanoparticles (silver, copper, zinc oxide, iron oxide) would ensure the appropriate biocidal properties oflow-density polyethylene (LDPE) against pathogenic microorganisms. According to the research hypothesis, appropriately selected concentrations of the applied metal nanoparticles allow for a high level of biocidal activity of polymeric materials against both model and pathogenic bacterial strains (Escherichia coli, Staphylococcus aureus, Pseudomonas aeruginosa, Legionella pneumophila, Salmonella enterica subsp. enterica) and fungi (Aspergillus brasiliensis, Saccharomyces cerevisiae, Candida albicans, Penicilium expansum), whilst ensuring the safety of use due to the lack of migration of particles to the surrounding environment. Studies have shown that adding 4% of a biocide containing Ag, Cu, ZnO, and Fe2O3 nanoparticles is the most optimal solution to reduce the number of S. aureus, S. enterica and P. aeruginosa by over 99%. The lowest effectiveness was observed against L. pneumophila bacteria. As for E. coli, a higher biocide content did not significantly increase the antibacterial activity. The results showed a high efficiency of the applied biocide at a concentration of 2% against fungal strains. The high efficiency of the obtained biocidal results was influenced by the uniform dispersion of nanoparticles in the material and their low degree of agglomeration. Furthermore, a slight migration of components to the environment is the basis for further research in the field of the application of the developed materials in industry.
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Affiliation(s)
| | | | | | | | | | - Rafał Malinowski
- Łukasiewicz Research Network—Institute for Engineering of Polymer Materials and Dyes, 87-100 Toruń, Poland; (K.J.); (D.K.); (D.K.); (A.R.-K.); (L.W.)
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8
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Bridging the gap between rubbers and plastics: a review on thermoplastic polyolefin elastomers. Polym Bull (Berl) 2021. [DOI: 10.1007/s00289-020-03522-8] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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9
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Catalytic Reduction of Toxic Dyes Using Highly Responsive and Stable Ag Nanocomposite. J Inorg Organomet Polym Mater 2020. [DOI: 10.1007/s10904-020-01790-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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10
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Villani M, Bertoglio F, Restivo E, Bruni G, Iervese S, Arciola CR, Carulli F, Iannace S, Bertini F, Visai L. Polyurethane-Based Coatings with Promising Antibacterial Properties. MATERIALS 2020; 13:ma13194296. [PMID: 32993029 PMCID: PMC7579457 DOI: 10.3390/ma13194296] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/25/2020] [Revised: 09/21/2020] [Accepted: 09/23/2020] [Indexed: 01/03/2023]
Abstract
In coatings technology, the possibility of introducing specific characteristics at the surface level allows for the manufacture of medical devices with efficient and prolonged antibacterial properties. This efficiency is often achieved by the use of a small amount of antibacterial molecules, which can fulfil their duty while limiting eventual releasing problems. The object of this work was the preparation and characterization of silver, titanium dioxide and chitosan polyurethane-based coatings. Coatings with the three antibacterials were prepared using different deposition techniques, using a brush or a bar coater automatic film applicator, and compared to solvent casted films prepared with the same components. For silver containing materials, an innovative strategy contemplating the use and preparation of silver nanoparticles in a single step-method was employed. This preparation was obtained starting from a silver precursor and using a single compound as the reducing agent and stabilizer. Ultraviolet-visible spectroscopy, scanning electron microscopy, energy dispersive X-ray spectroscopy, contact angle measurements and adhesion test experiments were used to characterize the prepared coatings. Promising antibacterial properties, measured via direct and indirect methods, were registered for all the silver-based materials.
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Affiliation(s)
- Maurizio Villani
- Istituto di Scienze e Tecnologie Chimiche “Giulio Natta”—CNR, Via A. Corti 12, 20133 Milano, Italy; (F.C.); (S.I.); (F.B.)
- Correspondence: or (M.V.); (L.V.)
| | - Federico Bertoglio
- Department of Molecular Medicine (DMM), Center for Health Technologies (CHT), UdR INSTM, University of Pavia, Viale Taramelli 3/B, 27100 Pavia, Italy; (F.B.); (E.R.); (S.I.)
| | - Elisa Restivo
- Department of Molecular Medicine (DMM), Center for Health Technologies (CHT), UdR INSTM, University of Pavia, Viale Taramelli 3/B, 27100 Pavia, Italy; (F.B.); (E.R.); (S.I.)
| | - Giovanna Bruni
- Center for Colloid and Surfaces Science (C.S.G.I.), Department of Chemistry, Physical Chemistry Section, University of Pavia, viale Taramelli 16, 27100 Pavia, Italy;
| | - Stefano Iervese
- Department of Molecular Medicine (DMM), Center for Health Technologies (CHT), UdR INSTM, University of Pavia, Viale Taramelli 3/B, 27100 Pavia, Italy; (F.B.); (E.R.); (S.I.)
| | - Carla Renata Arciola
- Department of Experimental, Diagnostic and Specialty Medicine (DIMES), University of Bologna, Via S. Giacomo, 14, 40126 Bologna, Italy;
- Laboratorio di Patologia delle Infezioni Associate all’Impianto, IRCCS Istituto Ortopedico Rizzoli, Via di Barbiano 1/10, 40136 Bologna, Italy
| | - Francesco Carulli
- Istituto di Scienze e Tecnologie Chimiche “Giulio Natta”—CNR, Via A. Corti 12, 20133 Milano, Italy; (F.C.); (S.I.); (F.B.)
| | - Salvatore Iannace
- Istituto di Scienze e Tecnologie Chimiche “Giulio Natta”—CNR, Via A. Corti 12, 20133 Milano, Italy; (F.C.); (S.I.); (F.B.)
| | - Fabio Bertini
- Istituto di Scienze e Tecnologie Chimiche “Giulio Natta”—CNR, Via A. Corti 12, 20133 Milano, Italy; (F.C.); (S.I.); (F.B.)
| | - Livia Visai
- Department of Molecular Medicine (DMM), Center for Health Technologies (CHT), UdR INSTM, University of Pavia, Viale Taramelli 3/B, 27100 Pavia, Italy; (F.B.); (E.R.); (S.I.)
- Department of Occupational Medicine, Toxicology and Environmental Risks, Istituti Clinici Scientifici Maugeri S.p.A Società Benefit, IRCCS, Via S. Boezio, 28, 27100 Pavia, Italy
- Correspondence: or (M.V.); (L.V.)
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11
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Cotton Terry Textiles with Photo- and Bio-Activity in a Model Study and Real Conditions. MATERIALS 2020; 13:ma13153334. [PMID: 32726989 PMCID: PMC7435768 DOI: 10.3390/ma13153334] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/28/2020] [Revised: 07/09/2020] [Accepted: 07/22/2020] [Indexed: 12/24/2022]
Abstract
The aim of the study was to assess the photocatalytic (decompose staining particles, K/S values, the color differences, CIE L*a*b* color) and antimicrobial properties of textiles modified with TiO2 and ZnO nanoparticles (NPs) confirmed by X-ray diffraction, dynamic light scattering, SEM-EDX) in visible light conditions. The antimicrobial effectiveness of modified textiles under model conditions has been reported against 5 microorganisms: Staphylococcus aureus, Escherichia coli, Bacillus subtilis, Candida albicans, Aspergillus niger (AATCC Test Method 100-2004). In real conditions in bathrooms, significant biostatic activity was shown on the surface of the modified towels. The number of microorganisms decreased by 1-5 log to the level of 0-5 CFU/cm2 in the case of bacteria: Enterobacteriaceae, Enterococcus, the coli group and E. coli, Pseudomonas. Statistically significant reduction of the total number of bacteria and fungi (by 1 log), and the concentration of gases (NO2, CO2, CO) in the air of bathrooms was determined. The removal or reduction of volatile organic compounds (VOCs) concentration (SPME-GC-MS analysis) in the air above the modified towels has also been determined. It was found that the lighting type (natural, artificial), time (1.5 and 7 h/day), air humidity (RH = 36-67%) and light intensity (81-167 lux) are important for the efficiency of photocatalysis. Textile materials modified with TiO2 and ZnO NPs can be used as self-cleaning towels. They can also help purify air from microorganisms, VOCs and undesirable gases.
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Singh Yadav R, Kuřitka I, Vilcakova J, Jamatia T, Machovsky M, Skoda D, Urbánek P, Masař M, Urbánek M, Kalina L, Havlica J. Impact of sonochemical synthesis condition on the structural and physical properties of MnFe 2O 4 spinel ferrite nanoparticles. ULTRASONICS SONOCHEMISTRY 2020; 61:104839. [PMID: 31683238 DOI: 10.1016/j.ultsonch.2019.104839] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/14/2019] [Revised: 10/18/2019] [Accepted: 10/21/2019] [Indexed: 06/10/2023]
Abstract
Herein, we report sonochemical synthesis of MnFe2O4 spinel ferrite nanoparticles using UZ SONOPULS HD 2070 Ultrasonic homogenizer (frequency: 20 kHz and power: 70 W). The sonication time and percentage amplitude of ultrasonic power input cause appreciable changes in the structural, cation distribution and physical properties of MnFe2O4 nanoparticles. The average crystallite size of synthesized MnFe2O4 nanoparticles was increased with increase of sonication time and percentage amplitude of ultrasonic power input. The occupational formula by X-ray photoelectron spectroscopy for prepared spinel ferrite nanoparticles was (Mn0.29Fe0.42)[Mn0.71Fe1.58]O4 and (Mn0.28Fe0.54) [Mn0.72Fe1.46]O4 at sonication time 20 min and 80 min, respectively. The value of the saturation magnetization was increased from 1.9 emu/g to 52.5 emu/g with increase of sonication time 20 min to 80 min at constant 50% amplitude of ultrasonic power input, whereas, it was increased from 30.2 emu/g to 59.4 emu/g with increase of the percentage amplitude of ultrasonic power input at constant sonication time 60 min. The highest value of dielectric constant (ε') was 499 at 1 kHz for nanoparticles at sonication time 20 min, whereas, ac conductivity was 368 × 10-9 S/cm at 1 kHz for spinel ferrite nanoparticles at sonication time 20 min. The demonstrated controllable physical characteristics over sonication time and percentage amplitude of ultrasonic power input are a key step to design spinel ferrite material of desired properties for specific application. The investigation of microwave operating frequency suggest that these prepared spinel ferrite nanoparticles are potential candidate for fabrication of devices at high frequency applications.
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Affiliation(s)
- Raghvendra Singh Yadav
- Centre of Polymer Systems, University Institute, Tomas Bata University in Zlín, Trida Tomase Bati 5678, 760 01 Zlín, Czech Republic.
| | - Ivo Kuřitka
- Centre of Polymer Systems, University Institute, Tomas Bata University in Zlín, Trida Tomase Bati 5678, 760 01 Zlín, Czech Republic
| | - Jarmila Vilcakova
- Centre of Polymer Systems, University Institute, Tomas Bata University in Zlín, Trida Tomase Bati 5678, 760 01 Zlín, Czech Republic
| | - Thaiskang Jamatia
- Centre of Polymer Systems, University Institute, Tomas Bata University in Zlín, Trida Tomase Bati 5678, 760 01 Zlín, Czech Republic
| | - Michal Machovsky
- Centre of Polymer Systems, University Institute, Tomas Bata University in Zlín, Trida Tomase Bati 5678, 760 01 Zlín, Czech Republic
| | - David Skoda
- Centre of Polymer Systems, University Institute, Tomas Bata University in Zlín, Trida Tomase Bati 5678, 760 01 Zlín, Czech Republic
| | - Pavel Urbánek
- Centre of Polymer Systems, University Institute, Tomas Bata University in Zlín, Trida Tomase Bati 5678, 760 01 Zlín, Czech Republic
| | - Milan Masař
- Centre of Polymer Systems, University Institute, Tomas Bata University in Zlín, Trida Tomase Bati 5678, 760 01 Zlín, Czech Republic
| | - Michal Urbánek
- Centre of Polymer Systems, University Institute, Tomas Bata University in Zlín, Trida Tomase Bati 5678, 760 01 Zlín, Czech Republic
| | - Lukas Kalina
- Materials Research Centre, Brno University of Technology, Purkyňova 464/118, 61200 Brno, Czech Republic
| | - Jaromir Havlica
- Materials Research Centre, Brno University of Technology, Purkyňova 464/118, 61200 Brno, Czech Republic
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13
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Shahamat Z, Nemati F, Elhampour A. One-pot synthesis of propargylamines using magnetic mesoporous polymelamine formaldehyde/zinc oxide nanocomposite as highly efficient, eco-friendly and durable nanocatalyst: optimization by DOE approach. Mol Divers 2019; 24:691-706. [PMID: 31359369 DOI: 10.1007/s11030-019-09977-w] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2018] [Accepted: 07/12/2019] [Indexed: 12/19/2022]
Abstract
Magnetic mesoporous polymelamine formaldehyde nanocomposite-incorporating ZnO nanoparticles were successfully synthesized using solvothermal and sol-gel methods. Fourier-transform infrared spectrometry (FT-IR), X-ray diffraction, Brunauer-Emmett-Teller, vibrating sample magnetometer, thermogravimetric analysis, elemental analysis, transmission electron microscopy and field emission scanning electron microscopy techniques were then utilized for evaluation of nanocomposites. The as-prepared nanocomposite can be used as heterogeneous nanocatalyst with remarkable performance for A3 coupling reaction toward one-pot synthesis of propargylamine and its derivatives under solvent-less condition. In order to maximize the product yield, the variables, i.e., reaction time, temperature and catalyst amount, were optimized by using a statistical approach. The synthesized nanocomposite can be easily separated from the reaction medium and reused over and over, without significant changes in its catalytic activity.
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Affiliation(s)
- Zahra Shahamat
- Department of Chemistry, Semnan University, Semnan, Iran
| | | | - Ali Elhampour
- Department of Chemistry, Semnan University, Semnan, Iran
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14
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Enhancement the Photocatalytic and Biological Activity of Nano-sized ZnO Using Hyperbranched Polyester. J Inorg Organomet Polym Mater 2019. [DOI: 10.1007/s10904-018-01067-y] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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15
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Idumah CI, Hassan A, Ihuoma DE. Recently emerging trends in polymer nanocomposites packaging materials. POLYM-PLAST TECH MAT 2018. [DOI: 10.1080/03602559.2018.1542718] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Affiliation(s)
- Christopher Igwe Idumah
- Enhanced Polymer Engineering Group, Faculty of Chemical Engineering, Universiti Teknologi Malaysia, Skudai, Johor, Malaysia
| | - Azman Hassan
- Enhanced Polymer Engineering Group, Faculty of Chemical Engineering, Universiti Teknologi Malaysia, Skudai, Johor, Malaysia
| | - David Esther Ihuoma
- Enhanced Polymer Engineering Group, Faculty of Chemical Engineering, Universiti Teknologi Malaysia, Skudai, Johor, Malaysia
- Department of TVE, Food and Nutrition Unit, Ebonyi State University, Abakaliki, Nigeria
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