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Mohammed SM, Shehab WS, Emwas AHM, Jaremko M, Abdellattif MH, Zordok WA, Tantawy ES. Eco-Friendly Synthesis of 1 H-benzo[ d]imidazole Derivatives by ZnO NPs Characterization, DFT Studies, Antioxidant and Insilico Studies. Pharmaceuticals (Basel) 2023; 16:969. [PMID: 37513881 PMCID: PMC10385378 DOI: 10.3390/ph16070969] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2023] [Revised: 06/22/2023] [Accepted: 06/28/2023] [Indexed: 07/30/2023] Open
Abstract
Benzimidazoles are classified as a category of heterocyclic compounds. Molecules having benzimidazole motifs show promising utility in organic and scientific studies. A series of mono-substituted benzimidazoles were synthesized by ZnO-NPs via cyclocondensation between substituted aromatic aldehydes and o-phenylene diamine. The synthesized compounds were characterized and compared with the traditional methods. The nano-catalyzed method displayed a higher yield, shorter time and recyclable catalyst. The DFT study and antioxidant activity were investigated for benzo[d]imidazole derivatives. Compound 2a exhibited the highest antioxidant activity among the tested compounds. We focused on the catalytic activity of ZnO in the synthesis of heterocyclic structures with the goal of stimulating further progress in this field. The superiorities of this procedure are high yield of product, low amounts of catalyst and short reaction time.
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Affiliation(s)
- Samar M Mohammed
- Department of Chemistry, Faculty of Science, Zagazig University, Zagazig 44519, Egypt
| | - Wesam S Shehab
- Department of Chemistry, Faculty of Science, Zagazig University, Zagazig 44519, Egypt
| | - Abdul-Hamid M Emwas
- Core Labs, King Abdullah University of Science and Technology (KAUST), Thuwal 23955-6900, Saudi Arabia
| | - Mariusz Jaremko
- Biological and Environmental Science and Engineering (BESE), King Abdullah University of Science and Technology (KAUST), Thuwal 23955-6900, Saudi Arabia
| | - Magda H Abdellattif
- Department of Chemistry, Sciences College, Taif University, Taif 21944, Saudi Arabia
| | - Wael A Zordok
- Department of Chemistry, Faculty of Science, Zagazig University, Zagazig 44519, Egypt
| | - Eman S Tantawy
- Department of Chemistry, Faculty of Science, Zagazig University, Zagazig 44519, Egypt
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Huq MA, Rahman MM, Singh P, Akter S. Editorial: Eco-friendly synthesis & antibacterial applications of metal nanoparticles. Front Bioeng Biotechnol 2023; 11:1157374. [PMID: 36911191 PMCID: PMC9992989 DOI: 10.3389/fbioe.2023.1157374] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2023] [Accepted: 02/17/2023] [Indexed: 02/24/2023] Open
Affiliation(s)
- Md Amdadul Huq
- Department of Food and Nutrition, College of Biotechnology and Natural Resource, Chung-Ang University, Anseong, Republic of Korea
| | - M Mizanur Rahman
- Department of Biotechnology and Genetic Engineering, Faculty of Biological Science, Islamic University, Kushtia, Bangladesh
| | - Priyanka Singh
- The Novo Nordisk Foundation, Center for Biosustainability, Technical University of Denmark, Lyngby, Denmark
| | - Shahina Akter
- Department of Food Science and Biotechnology, Gachon University, Seongnam, Republic of Korea
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Balaba N, Jaerger S, Horsth DFL, Primo JDO, Correa JDS, Bittencourt C, Zanette CM, Anaissi FJ. Polysaccharides as Green Fuels for the Synthesis of MgO: Characterization and Evaluation of Antimicrobial Activities. Molecules 2022; 28:molecules28010142. [PMID: 36615339 PMCID: PMC9822341 DOI: 10.3390/molecules28010142] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/04/2022] [Revised: 12/17/2022] [Accepted: 12/20/2022] [Indexed: 12/28/2022]
Abstract
The synthesis of structured MgO is reported using feedstock starch (route I), citrus pectin (route II), and Aloe vera (route III) leaf, which are suitable for use as green fuels due to their abundance, low cost, and non-toxicity. The oxides formed showed high porosity and were evaluated as antimicrobial agents. The samples were characterized by energy-dispersive X-ray fluorescence (EDXRF), X-ray diffraction (XRD), Fourier-transform infrared spectroscopy (FTIR), and scanning electron microscopy (SEM). The crystalline periclase monophase of the MgO was identified for all samples. The SEM analyses show that the sample morphology depends on the organic fuel used during the synthesis. The antibacterial activity of the MgO-St (starch), MgO-CP (citrus pectin), and MgO-Av (Aloe vera) oxides was evaluated against pathogens Staphylococcus aureus (ATCC 6538P) and Escherichia coli (ATCC 8739). Antifungal activity was also studied against Candida albicans (ATCC 64548). The studies were carried out using the qualitative agar disk diffusion method and quantitative minimum inhibitory concentration (MIC) tests. The MIC of each sample showed the same inhibitory concentration of 400 µg. mL-1 for the studied microorganisms. The formation of inhibition zones and the MIC values in the antimicrobial analysis indicate the effective antimicrobial activity of the samples against the test microorganisms.
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Affiliation(s)
- Nayara Balaba
- Departamento de Química, Universidade Estadual do Centro-Oeste, Guarapuava 85040-080, Brazil
| | - Silvia Jaerger
- Departamento de Química, Universidade Estadual do Centro-Oeste, Guarapuava 85040-080, Brazil
| | - Dienifer F. L. Horsth
- Departamento de Química, Universidade Estadual do Centro-Oeste, Guarapuava 85040-080, Brazil
- Chimie des Interactions Plasma-Surface (ChIPS), Research Institute for Materials Science and Engineering, University of Mons, 7000 Mons, Belgium
| | - Julia de O. Primo
- Departamento de Química, Universidade Estadual do Centro-Oeste, Guarapuava 85040-080, Brazil
| | - Jamille de S. Correa
- Departamento de Química, Universidade Estadual do Centro-Oeste, Guarapuava 85040-080, Brazil
| | - Carla Bittencourt
- Chimie des Interactions Plasma-Surface (ChIPS), Research Institute for Materials Science and Engineering, University of Mons, 7000 Mons, Belgium
- Correspondence:
| | - Cristina M. Zanette
- Departamento de Engenharia de Alimentos, Universidade Estadual do Centro-Oeste, Guarapuava 85040-080, Brazil
| | - Fauze J. Anaissi
- Departamento de Química, Universidade Estadual do Centro-Oeste, Guarapuava 85040-080, Brazil
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Primo JDO, Correa JDS, Horsth DFL, Das A, Zając M, Umek P, Wattiez R, Anaissi FJ, Onderwater RCA, Bittencourt C. Antiviral Properties against SARS-CoV-2 of Nanostructured ZnO Obtained by Green Combustion Synthesis and Coated in Waterborne Acrylic Coatings. Nanomaterials (Basel) 2022; 12:4345. [PMID: 36500967 PMCID: PMC9740257 DOI: 10.3390/nano12234345] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/30/2022] [Revised: 11/23/2022] [Accepted: 11/30/2022] [Indexed: 06/17/2023]
Abstract
The COVID-19 pandemic has increased the need for developing disinfectant surfaces as well as reducing the spread of infections on contaminated surfaces and the contamination risk from the fomite route. The present work reports on the antiviral activity of coatings containing ZnO particles obtained by two simple synthesis routes using Aloe vera (ZnO-aloe) or cassava starch (ZnO-starch) as reaction fuel. After detailed characterization using XRD and NEXAFS, the obtained ZnO particles were dispersed in a proportion of 10% with two different waterborne acrylic coatings (binder and commercial white paint) and brushed on the surface of polycarbonates (PC). The cured ZnO/coatings were characterized by scanning electron microscopes (SEM) and energy-dispersive X-ray spectroscopy (EDS). Wettability tests were performed. The virucidal activity of the ZnO particles dispersed in the waterborne acrylic coating was compared to a reference control sample (PC plates). According to RT-PCR results, the ZnO-aloe/coating displays the highest outcome for antiviral activity against SARS-CoV-2 using the acrylic binder, inactivating >99% of the virus after 24 h of contact relative to reference control.
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Affiliation(s)
- Julia de O. Primo
- Departamento de Química, Universidade Estadual Do Centro-Oeste, Guarapuava 85-040-200, Brazil
- Chimie des Interactions Plasma-Surface (ChIPS), Research Institute for Materials Science and Engineering, University of Mons, 7000 Mons, Belgium
| | - Jamille de S. Correa
- Departamento de Química, Universidade Estadual Do Centro-Oeste, Guarapuava 85-040-200, Brazil
| | - Dienifer F. L. Horsth
- Departamento de Química, Universidade Estadual Do Centro-Oeste, Guarapuava 85-040-200, Brazil
- Chimie des Interactions Plasma-Surface (ChIPS), Research Institute for Materials Science and Engineering, University of Mons, 7000 Mons, Belgium
| | - Arkaprava Das
- Chimie des Interactions Plasma-Surface (ChIPS), Research Institute for Materials Science and Engineering, University of Mons, 7000 Mons, Belgium
| | - Marcin Zając
- National Synchrotron Radiation Centre Solaris, Jagiellonian University, 30-392 Kraków, Poland
| | - Polona Umek
- Solid State Physics Department, Jožef Stefan Institute, 1000 Ljubljana, Slovenia
| | - Ruddy Wattiez
- Department of Proteomics and Microbiology, University of Mons, 7000 Mons, Belgium
| | - Fauze J. Anaissi
- Departamento de Química, Universidade Estadual Do Centro-Oeste, Guarapuava 85-040-200, Brazil
| | | | - Carla Bittencourt
- Chimie des Interactions Plasma-Surface (ChIPS), Research Institute for Materials Science and Engineering, University of Mons, 7000 Mons, Belgium
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Méndez-Lozano N, Pérez-Reynoso F, González-Gutiérrez C. Eco-Friendly Approach for Graphene Oxide Synthesis by Modified Hummers Method. Materials (Basel) 2022; 15:ma15207228. [PMID: 36295292 PMCID: PMC9607621 DOI: 10.3390/ma15207228] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/30/2022] [Revised: 09/30/2022] [Accepted: 10/11/2022] [Indexed: 05/12/2023]
Abstract
The aim of this study is to produce graphene oxide using a modified Hummers method without using sodium nitrate. This modification eliminates the production of toxic gases. Two drying temperatures, 60 °C and 90 °C, were used. Material was characterized by X-Ray Diffraction, Fourier Transform Infrared Spectroscopy, Raman Spectroscopy and Scanning Electron Microscopy. FTIR study shows various functional groups such as hydroxyl, carboxyl and carbonyl. The XRD results show that the space between the layers of GO60 is slightly larger than that for GO90. SEM images show a homogeneous network of graphene oxide layers of ≈6 to ≈9 nm. The procedure described has an environmentally friendly approach.
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Zbancioc G, Ciobanu CI, Mangalagiu II, Moldoveanu C. Ultrasound-Assisted Synthesis of Fluorescent Azatetracyclic Derivatives: An Energy-Efficient Approach. Molecules 2022; 27:molecules27103180. [PMID: 35630657 PMCID: PMC9147717 DOI: 10.3390/molecules27103180] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/28/2022] [Revised: 05/12/2022] [Accepted: 05/14/2022] [Indexed: 11/24/2022]
Abstract
We report here an energy-efficient and straight synthesis of two new classes of derivatized fluorescent azatetracycles under ultrasound (US) irradiation. A first class of azatetracyclic compounds was synthesized by heterogeneous catalytic bromination of the α-keto substituent attached to the pyrrole moiety of the tetracyclic cycloadducts, while for the second, one class was synthesized by nucleophilic substitution of the bromide with the azide group. Comparative with conventional thermal heating (TH) under US irradiation, both types of reactions occur with substantially higher yields, shortened reaction time (from days to hours), lesser energy consumed, easier workup of the reaction, and smaller amounts of solvent required (at least three to five-fold less compared to TH), which make these reactions to be considered as energy efficient. The derivatized azatetracycle are blue emitters with λmax of fluorescence around 430–445 nm. A certain influence of the azatetracycle substituents concerning absorption and fluorescent properties was observed. Compounds anchored with a bulky azide group have shown decreased fluorescence intensity compared with corresponding bromides.
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Affiliation(s)
- Gheorghita Zbancioc
- Chemistry Department, Alexandru Ioan Cuza University of Iasi, Carol I Bvd., 700506 Iasi, Romania;
- Correspondence: (G.Z.); (C.M.); Tel.: +40-232-201278 (C.M.)
| | - Catalina-Ionica Ciobanu
- Institute of Interdisciplinary Research-CERNESIM Centre, Alexandru Ioan Cuza University of Iasi, Carol I Bvd., 700506 Iasi, Romania;
| | - Ionel I. Mangalagiu
- Chemistry Department, Alexandru Ioan Cuza University of Iasi, Carol I Bvd., 700506 Iasi, Romania;
- Institute of Interdisciplinary Research-CERNESIM Centre, Alexandru Ioan Cuza University of Iasi, Carol I Bvd., 700506 Iasi, Romania;
| | - Costel Moldoveanu
- Chemistry Department, Alexandru Ioan Cuza University of Iasi, Carol I Bvd., 700506 Iasi, Romania;
- Correspondence: (G.Z.); (C.M.); Tel.: +40-232-201278 (C.M.)
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Saleh SM, El-Sayed WA, El-Manawaty MA, Gassoumi M, Ali R. An Eco-Friendly Synthetic Approach for Copper Nanoclusters and Their Potential in Lead Ions Sensing and Biological Applications. Biosensors (Basel) 2022; 12:bios12040197. [PMID: 35448257 PMCID: PMC9032517 DOI: 10.3390/bios12040197] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/26/2022] [Revised: 03/16/2022] [Accepted: 03/24/2022] [Indexed: 05/12/2023]
Abstract
A new preparation route for high-luminescent blue-emission pepsin copper nanoclusters (Pep-CuNCs) is introduced in this work. The synthesized nanoclusters are based on a pepsin molecule, which is a stomach enzyme that works to digest proteins that exist in undigested food. Here, we have developed an eco-friendly technique through microwave-assisted fast synthesis. The resulting copper nanoclusters (CuNCs) exhibit significant selectivity towards Pb(II) ions. The pepsin molecule was utilized as a stabilizer and reducing agent in the production procedure of Pep-CuNCs. The characteristics of the resulting Pep-CuNCs were studied in terms of size, surface modification, and composition using various sophisticated techniques. The CuNCs responded to Pb(II) ions through the fluorescence quenching mechanism of the CuNCs' fluorescence. Thus, great selectivity of Pep-CuNCs towards Pb(II) ions was observed, allowing sensitive determination of this metal ion at lab-scale and in the environment. The CuNCs have detection limits for Pb(II) in very tenuous concentration at a nanomalar scale (11.54 nM). The resulting Pep-CuNCs were utilized significantly to detect Pb(II) ions in environmental samples. Additionally, the activity of Pep-CuNCs on different human tumor cell lines was investigated. The data for the observed behavior indicate that the Pep-CuNCs displayed their activity against cancer cells in a dose dependent manner against most utilized cancer cell lines.
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Affiliation(s)
- Sayed M. Saleh
- Department of Chemistry, College of Science, Qassim University, Buraidah 51452, Saudi Arabia;
- Chemistry Branch, Department of Science and Mathematics, Faculty of Petroleum and Mining Engineering, Suez University, Suez 43721, Egypt
- Correspondence: (S.M.S.); (R.A.)
| | - Wael A. El-Sayed
- Department of Chemistry, College of Science, Qassim University, Buraidah 51452, Saudi Arabia;
- Photochemistry Department, National Research Centre, Dokki, Giza 12622, Egypt
| | - May A. El-Manawaty
- Pharmacognosy Department, Pharmaceutical and Drug Industries Research Institute, National Research Centre, 33 El Buhouth Street, Cairo 12622, Egypt;
| | - Malek Gassoumi
- Department of Physics, College of Science, Qassim University, P.O. Box 64, Buraidah 51452, Saudi Arabia;
- Laboratory of Condensed Matter and Nanosciences, University of Monastir, Monastir 5000, Tunisia
| | - Reham Ali
- Department of Chemistry, College of Science, Qassim University, Buraidah 51452, Saudi Arabia;
- Chemistry Department, Science College, Suez University, Suez 43518, Egypt
- Correspondence: (S.M.S.); (R.A.)
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Cassani L, Marcovich NE, Gomez-Zavaglia A. Seaweed bioactive compounds: Promising and safe inputs for the green synthesis of metal nanoparticles in the food industry. Crit Rev Food Sci Nutr 2021; 63:1527-1550. [PMID: 34407716 DOI: 10.1080/10408398.2021.1965537] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
Scientific research on developing and characterizing eco-friendly metal nanoparticles (NPs) is an active area experiencing currently a systematic and continuous growth. A variety of physical, chemical and more recently biological methods can be used for the synthesis of metal nanoparticles. Among them, reports supporting the potential use of algae in the NPs green synthesis, contribute with only a minor proportion, although seaweed was demonstrated to perform as a successful reducing and stabilizing agent. Thus, the first part of the present review depicts the up-to-date information on the use of algae extracts for the synthesis of metal nanoparticles, including a deep discussion of the certain advantages as well as some limitations of this synthesis route. In the second part, the available characterization techniques to unravel their inherent properties such as specific size, shape, composition, morphology and dispersibility are comprehensively described, to finally focus on the factors affecting their applications, bioactivity, potential toxic impact on living organisms and incorporation into food matrices or food packaging, as well as future prospects. The present article identifies the key knowledge gap in a systematic way highlighting the critical next steps in the green synthesis of metal NPs mediated by algae.
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Affiliation(s)
- Lucía Cassani
- Instituto de Investigaciones en Ciencia y Tecnología de Materiales (INTEMA, CCT-CONICET), Mar del Plata, Argentina.,Departamento de Ingeniería Química y en Alimentos - Facultad de Ingeniería, Universidad Nacional de Mar del Plata (UNMdP), Mar del Plata, Argentina
| | - Norma E Marcovich
- Instituto de Investigaciones en Ciencia y Tecnología de Materiales (INTEMA, CCT-CONICET), Mar del Plata, Argentina.,Departamento de Ingeniería Química y en Alimentos - Facultad de Ingeniería, Universidad Nacional de Mar del Plata (UNMdP), Mar del Plata, Argentina
| | - Andrea Gomez-Zavaglia
- Center for Research and Development in Food Cryotechnology (CIDCA, CCT-CONICET La Plata), La Plata, Argentina
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Akter S, Lee SY, Siddiqi MZ, Balusamy SR, Ashrafudoulla M, Rupa EJ, Huq MA. Ecofriendly Synthesis of Silver Nanoparticles by Terrabacter humi sp. nov. and Their Antibacterial Application against Antibiotic-Resistant Pathogens. Int J Mol Sci 2020; 21:ijms21249746. [PMID: 33371231 PMCID: PMC7766514 DOI: 10.3390/ijms21249746] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2020] [Revised: 12/16/2020] [Accepted: 12/17/2020] [Indexed: 12/20/2022] Open
Abstract
It is essential to develop and discover alternative eco-friendly antibacterial agents due to the emergence of multi-drug-resistant microorganisms. In this study, we isolated and characterized a novel bacterium named Terrabacter humi MAHUQ-38T, utilized for the eco-friendly synthesis of silver nanoparticles (AgNPs) and the synthesized AgNPs were used to control multi-drug-resistant microorganisms. The novel strain was Gram stain positive, strictly aerobic, milky white colored, rod shaped and non-motile. The optimal growth temperature, pH and NaCl concentration were 30 °C, 6.5 and 0%, respectively. Based on 16S rRNA gene sequence, strain MAHUQ-38T belongs to the genus Terrabacter and is most closely related to several Terrabacter type strains (98.2%-98.8%). Terrabacter humi MAHUQ-38T had a genome of 5,156,829 bp long (19 contigs) with 4555 protein-coding genes, 48 tRNA and 5 rRNA genes. The culture supernatant of strain MAHUQ-38T was used for the eco-friendly and facile synthesis of AgNPs. The transmission electron microscopy (TEM) image showed the spherical shape of AgNPs with a size of 6 to 24 nm, and the Fourier transform infrared (FTIR) analysis revealed the functional groups responsible for the synthesis of AgNPs. The synthesized AgNPs exhibited strong anti-bacterial activity against multi-drug-resistant pathogens, Escherichia coli and Pseudomonas aeruginosa. Minimal inhibitory/bactericidal concentrations against E. coli and P. aeruginosa were 6.25/50 and 12.5/50 μg/mL, respectively. The AgNPs altered the cell morphology and damaged the cell membrane of pathogens. This study encourages the use of Terrabacter humi for the ecofriendly synthesis of AgNPs to control multi-drug-resistant microorganisms.
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Affiliation(s)
- Shahina Akter
- Department of Food Science and Biotechnology, Gachon University, Seongnam 461-701, Korea;
| | - Sun-Young Lee
- Department of Food and Nutrition, Chung-Ang University, Anseong 17546, Korea;
| | | | | | - Md. Ashrafudoulla
- Department of Food Science and Technology, Chung-Ang University, Anseong 17546, Korea;
| | - Esrat Jahan Rupa
- Department of Oriental Medicinal Material Processing, Kyung Hee University, Yongin 17104, Korea;
| | - Md. Amdadul Huq
- Department of Food and Nutrition, Chung-Ang University, Anseong 17546, Korea;
- Correspondence: or ; Tel.: +82-031-670-4568
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Huq MA. Biogenic Silver Nanoparticles Synthesized by Lysinibacillus xylanilyticus MAHUQ-40 to Control Antibiotic-Resistant Human Pathogens Vibrio parahaemolyticus and Salmonella Typhimurium. Front Bioeng Biotechnol 2020; 8:597502. [PMID: 33425864 PMCID: PMC7793659 DOI: 10.3389/fbioe.2020.597502] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2020] [Accepted: 11/17/2020] [Indexed: 11/23/2022] Open
Abstract
The present study highlights a simple and eco-friendly method for the biosynthesis of silver nanoparticles (AgNPs) using Lysinibacillus xylanilyticus strain MAHUQ-40. Also, the synthesized AgNPs were used to investigate their antibacterial activity and mechanisms against antibiotic-resistant pathogens. Biosynthesis of AgNPs was confirmed by ultraviolet-visible spectroscopy, and then, they were characterized by field emission-transmission electron microscopy (FE-TEM), X-ray diffraction (XRD), dynamic light scattering (DLS), and fourier transform-infrared (FTIR). The toxicity of AgNPs against two pathogenic bacteria was evaluated. The UV-vis spectral scanning showed the peak for synthesized AgNPs at 438 nm. Under FE-TEM, the synthesized AgNPs were spherical with diameter ranges from 8 to 30 nm. The XRD analysis revealed the crystallinity of synthesized AgNPs. FTIR data showed various biomolecules including proteins and polysaccharides that may be involved in the synthesis and stabilization of AgNPs. The resultant AgNPs showed significant antibacterial activity against tested pathogens. The MICs (minimum inhibitory concentrations) and MBCs (minimum bactericidal concentrations) of the AgNPs synthesized by strain MAHUQ-40 were 3.12 and 12.5 μg/ml, respectively, against Vibrio parahaemolyticus and 6.25 and 25 μg/ml, respectively, against Salmonella Typhimurium. FE-TEM analysis showed that the biogenic AgNPs generated structural and morphological changes and damaged the membrane integrity of pathogenic bacteria. Our findings showed the potentiality of L. xylanilyticus MAHUQ-40 to synthesis AgNPs that acted as potent antibacterial material against pathogenic bacterial strains.
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Affiliation(s)
- Md. Amdadul Huq
- Department of Food and Nutrition, College of Biotechnology and Natural Resource, Chung-Ang University, Anseong, South Korea
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Rani P, Srivastava R. Comprehensive Understanding of the Eco-Friendly Synthesis of Zeolites: Needs of 21 st Century Sustainable Chemical Industries. CHEM REC 2020; 20:968-988. [PMID: 32706177 DOI: 10.1002/tcr.202000062] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2020] [Revised: 06/25/2020] [Indexed: 01/21/2023]
Abstract
Zeolites have taken a leading position in petrochemical, fine, and bulk chemical industries due to their porous architecture, pore sizes, tunable acidity, and thermal stability. Various strategies of zeolites preparation, including template-free, solvent-free, and toxic mineral-free strategies are summarized. Moreover, the zeolite synthesis using naturally occurring minerals and sustainable natural templates is also discussed, which involves the synthesis of nanocrystalline zeolites of different framework structures using plant-based natural templates and biomass-derived renewable chemicals. Overall this personal account provides the fundamentals of various sustainable synthetic strategies reported in the literature for the synthesis of zeolites with suitable examples that will be useful for the students and will motivate experienced researchers to develop various novel sustainable methods for the synthesis of zeolites and other inorganic materials of industrial relevance.
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Affiliation(s)
- Poonam Rani
- Catalysis Research Laboratory, Department of Chemistry, Indian Institute of Technology Ropar, Rupnagar, 140001, Punjab, India.,Present Address: Department of Physical and Macromolecular Chemistry, Faculty of Science, Charles University, Czech Republic
| | - Rajendra Srivastava
- Catalysis Research Laboratory, Department of Chemistry, Indian Institute of Technology Ropar, Rupnagar, 140001, Punjab, India
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Kedi PBE, Meva FE, Kotsedi L, Nguemfo EL, Zangueu CB, Ntoumba AA, Mohamed HEA, Dongmo AB, Maaza M. Eco-friendly synthesis, characterization, in vitro and in vivo anti-inflammatory activity of silver nanoparticle-mediated Selaginella myosurus aqueous extract. Int J Nanomedicine 2018; 13:8537-8548. [PMID: 30587976 PMCID: PMC6296690 DOI: 10.2147/ijn.s174530] [Citation(s) in RCA: 57] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023] Open
Abstract
Introduction There is emerging interest in medicinal plants in the biomedical field, due to their multitude of chemicals which show anti-inflammatory, antimicrobial, antiviral, or antitumoral potential. Research on medicinal plants has shown that nanotechnology could offer new solutions in the quality control, delivery aspects, or in sustaining herbal biological activities. This work reports on the preparation and characterization of silver nanoparticle-mediated Selaginella myosurus plant extract. Methods Ultraviolet-visible spectroscopy, Fourier transform infrared spectroscopy, powder X-ray diffraction, energy dispersive X-ray spectroscopy, high-resolution scanning electron microscopy, high-resolution transmission electron microscopy, and selected area electron diffraction have been used to characterize the prepared silver nanoparticles. The synthetic stability was studied by varying concentrations and pH of reactants. Egg albumin denaturation and carrageenan-induced rat paw edema model were used to ascertain the anti-inflammation. Results Ultraviolet-visible spectroscopy gave plasmon resonance ranging between 420 and 480 nm while Fourier transform infrared spectroscopy proved nano interface functionalized with organics. The powder X-ray diffraction pattern is in agreement with silver and silver chloride nanoparticles of crystallite size 33.7 nm and 44.2 nm for silver and silver chloride, respectively. Energy dispersive X-ray spectroscopy enables elemental characterization of the particles consisting of silver and silver chloride among main elements. Spherical silver grain of 58.81 nm average size has been depicted with high-resolution scanning electron microscopy and high-resolution transmission electron microscopy. Inhibitions of 99% and 60% were obtained in vitro and in vivo, respectively. Conclusion The albumin denaturation and carrageenan-induced rat hind paw edema model to assess the anti-inflammatory potential of generated nanoparticles suggests that the silver nanoparticles may act as reducing/inhibiting agents on the release of acute inflammatory mediators. Hence, this work clearly demonstrated that silver nanoparticles mediated-Selaginella myosurus could be considered as a potential source for anti-inflammatory drugs.
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Affiliation(s)
- Philippe Belle Ebanda Kedi
- Department of Animal Biology and Physiology, Faculty of Science, University of Douala, Douala, Cameroon, .,Nanosciences African Network (NANOAFNET), iThemba LABS-National Research Foundation, Somerset, South Africa
| | - Francois Eya'ane Meva
- Department of Pharmaceutical Sciences, Faculty of Medicine and Pharmaceutical Sciences, University of Douala, Douala, Cameroon,
| | - Lebogang Kotsedi
- Nanosciences African Network (NANOAFNET), iThemba LABS-National Research Foundation, Somerset, South Africa.,UNESCO-UNISA Africa Chair in Nanosciences-Nanotechnology, College of Graduate Studies, University of South Africa, Pretoria, South Africa.,Department of Physics, University of the Western Cape, Bellville, Cape Town, South Africa
| | - Edwige Laure Nguemfo
- Department of Biological Sciences, Faculty of Medicine and Pharmaceutical Sciences, University of Douala, Douala, Cameroon
| | - Calvin Bogning Zangueu
- Department of Animal Biology and Physiology, Faculty of Science, University of Douala, Douala, Cameroon,
| | - Agnes Antoinette Ntoumba
- Department of Animal Biology and Physiology, Faculty of Science, University of Douala, Douala, Cameroon,
| | - Hamza Elsayed Ahmed Mohamed
- Nanosciences African Network (NANOAFNET), iThemba LABS-National Research Foundation, Somerset, South Africa.,UNESCO-UNISA Africa Chair in Nanosciences-Nanotechnology, College of Graduate Studies, University of South Africa, Pretoria, South Africa
| | - Alain Bertrand Dongmo
- Department of Animal Biology and Physiology, Faculty of Science, University of Douala, Douala, Cameroon,
| | - Malik Maaza
- Nanosciences African Network (NANOAFNET), iThemba LABS-National Research Foundation, Somerset, South Africa.,UNESCO-UNISA Africa Chair in Nanosciences-Nanotechnology, College of Graduate Studies, University of South Africa, Pretoria, South Africa
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13
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Wolny-Koładka KA, Malina DK. Eco-friendly approach to the synthesis of silver nanoparticles and their antibacterial activity against Staphylococcus spp. and Escherichia coli. J Environ Sci Health A Tox Hazard Subst Environ Eng 2018; 53:1041-1047. [PMID: 29842833 DOI: 10.1080/10934529.2018.1474568] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
The aim of this study was to assess bactericidal properties of nanosilver obtained with ascorbic acid (vitamin C) as a reducing substance, against environmental strains of Gram-positive (Staphylococcus) and Gram-negative bacteria (Escherichia coli). Silver nanoparticles were obtained by a simple and fast method of chemical reduction in mild synthesis condition using substrates not classified as dangerous and commonly found in plants. Bacterial susceptibility to nanosilver was determined using the disk-diffusion method. Gram-positive bacteria were less susceptible to bactericidal action of nanosilver and minimum inhibitory concentration was higher for these bacteria. However, susceptibility of individual isolates of different species to nanosilver was very diverse. The range of growth inhibition zones indicates that the resistance to different concentrations of nanosilver was a strain-characteristic, not species-related feature. The study of effective nanomaterials synthesis and applicability appears to be an extremely important element in the development of nanotechnology, especially in terms of the risks assessment. Obtained results have a real chance to be an important step toward creating a new generation of disinfectants without toxic effects on the environment and higher organisms.
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Affiliation(s)
| | - Dagmara K Malina
- b Faculty of Chemical Engineering and Technology, Cracow University of Technology , Poland
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14
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Messali M. Eco-Friendly Synthesis of a New Class of Pyridinium-Based Ionic Liquids with Attractive Antimicrobial Activity. Molecules 2015; 20:14936-49. [PMID: 26287148 PMCID: PMC6331848 DOI: 10.3390/molecules200814936] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2015] [Revised: 07/30/2015] [Accepted: 08/05/2015] [Indexed: 11/25/2022] Open
Abstract
The present study reports a green synthesis of a new family of ionic liquids (ILs) based on functionalized 4-dimethylaminopyridinium derivatives. The structures of 23 newly synthesized ILs (2–24) were confirmed by FT-IR, 1H-, 13C-, 11B-, 19F-, and 31P-NMR spectroscopy and mass spectrometry. The antimicrobial activity of all novel ILs was tested against a panel of bacteria and fungi. The results prove that all tested ILs are effective antibacterial and antifungal agents, especially 4-(dimethylamino)-1-(4-phenoxybutyl)pyridinium derivatives 5 and 19.
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Affiliation(s)
- Mouslim Messali
- Department of Chemistry, Taibah University, Al-Madina Al-Mounawara 30002, Saudi Arabia.
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