1
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Nag P, Sadani K, Pisharody L, Thian XY, Ratnakar TS, Ansari A, Mukherji S, Mukherji S. Essential oil mediated synthesis and application of highly stable copper nanoparticles as coatings on textiles and surfaces for rapid and sustained disinfection of microorganisms. NANOTECHNOLOGY 2024; 35:345602. [PMID: 38788697 DOI: 10.1088/1361-6528/ad501b] [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: 09/11/2022] [Accepted: 05/24/2024] [Indexed: 05/26/2024]
Abstract
Rampant pathogenesis induced by communicable microbes has necessitated development of technologies for rapid and sustained disinfection of surfaces. Copper nanoparticles (CuNPs) have been widely reported for their antimicrobial properties. However, nanostructured copper is prone to oxidative dissolution in the oil phase limiting its sustained use on surfaces and coatings. The current study reports a systematic investigation of a simple synthesis protocol using fatty acid stabilizers (particularly essential oils) for synthesis of copper nanoparticles in the oil phase. Of the various formulations synthesized, rosemary oil stabilized copper nanoparticles (RMO CuNPs) were noted to have the best inactivation kinetics and were also most stable. Upon morphological characterization by TEM and EELS, these were found to be monodispersed (φ5-8 nm) with copper coexisting in all three oxidation states on the surface of the nanoparticles. The nanoparticles were drop cast on woven fabric of around 500 threads per inch and exposed to gram positive bacteria (Staphylococcus aureus), gram negative bacteria (Escherichia coliandPseudomonas aeruginosa), enveloped RNA virus (phi6), non-enveloped RNA virus (MS2) and non-enveloped DNA virus (T4) to encompass the commonly encountered groups of pathogens. It was possible to completely disinfect 107copies of all microorganisms within 40 min of exposure. Further, this formulation was incorporated with polyurethane as thinners and used to coat non-woven fabrics. These also exhibited antimicrobial properties. Sustained disinfection with less than 9% cumulative copper loss for upto 14 washes with soap water was observed while the antioxidant activity was also preserved. Based on the studies conducted, RMO CuNP in oil phase was found to have excellent potential of integration on surface coatings, paints and polymers for rapid and sustained disinfection of microbes on surfaces.
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Affiliation(s)
- Pooja Nag
- Department of Mechatronics, Manipal Institute of Technology, Manipal Academy of Higher Education, Manipal 576104, India
| | - Kapil Sadani
- Department of Instrumentation and Control, Manipal Institute of Technology, Manipal Academy of Higher Education, Manipal 576104, India
| | - Lakshmi Pisharody
- Environmental Science and Engineering Department, Indian Institute of Technology Bombay, Mumbai 400076, India
| | - Xiao Yun Thian
- Department of Biosciences and Bioengineering, Indian Institute of Technology Bombay, Mumbai 400076, India
| | - Tadi Sai Ratnakar
- Department of Mechatronics, Manipal Institute of Technology, Manipal Academy of Higher Education, Manipal 576104, India
| | - Arhama Ansari
- Environmental Science and Engineering Department, Indian Institute of Technology Bombay, Mumbai 400076, India
| | - Suparna Mukherji
- Environmental Science and Engineering Department, Indian Institute of Technology Bombay, Mumbai 400076, India
| | - Soumyo Mukherji
- Department of Biosciences and Bioengineering, Indian Institute of Technology Bombay, Mumbai 400076, India
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Laihemdi F, Barhoumi A, Zarri M, Tahiri M, Chafi M. Inhibition of corrosion of an aluminum alloy by rosemary and eucalyptus extracted oils in 1 M hydrochloric acid medium: an experimental and theoretical study. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023:10.1007/s11356-023-30800-5. [PMID: 38052731 DOI: 10.1007/s11356-023-30800-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/09/2023] [Accepted: 10/27/2023] [Indexed: 12/07/2023]
Abstract
In this study, we explored aluminum corrosion inhibition field of study in a 1 M HCl solution, harnessing the power of essential oils extracted from rosemary and eucalyptus plants. Our exploration gives a comprehensive analysis of the pivotal factors that shape the corrosion inhibition process. Our scientific journey was marked by a deliberate and systematic approach, encompassing the utilization of gravimetric analysis (weight loss), electrochemical potentiodynamic polarization, and the sophisticated electrochemical impedance spectrometry (EIS) techniques. Our findings unveiled promising and nuanced outcomes, particularly in the area of the electrochemical technique. This method demonstrated remarkable inhibition efficiencies, ranging from 42% to an impressive 92% for rosemary essential oil and from 37 to 84% for eucalyptus essential oil. These results unveiled a dynamic relationship between essential oil concentration and inhibition efficiency, a revelation that further deepens our understanding of the corrosion inhibition process. The inhibition efficiency increased with higher concentrations of essential oil but decreased with elevated temperatures. Furthermore, our analysis traversed into the realms of potentiodynamic and thermodynamic insights. These analytical techniques unearthed the complex mechanisms at play, explaining the pathway followed by the studied inhibitors. They exhibited their prowess by forming protective films on the metal surface, acting as vigilant protectors against the relentless forces of corrosion. Complementing our experimental findings, our study of computational chemistry through density functional theory (DFT) unveiled remarkable insights. It elucidated the spontaneous adsorption process of inhibitor molecules onto the aluminum surface in the presence of H2O solvent. This computational harmony with our experimental results strengthened our confidence in the robustness of our findings. One of the key findings of this study was the superior inhibitory power of camphor in rosemary EO and β-myrcene in eucalyptus essential oil EO, respectively, attributed to the distinctive characteristics of the active sites found in each compound. The inhibitory effectiveness followed the order β-myrcene > camphor > borneol > α-pinene > bornyl acetate > p-cymene > 1,8-cineole. These compounds, notable for their distinct active sites, emerged as exceptional agents in the pursuit of effective corrosion inhibition.
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Affiliation(s)
- Fathia Laihemdi
- LIPE, Higher School of Technology, Hassan II University of Casablanca, P.O. Box 8012, 20000, Oasis, Morocco
| | - Ali Barhoumi
- LIPE, Higher School of Technology, Hassan II University of Casablanca, P.O. Box 8012, 20000, Oasis, Morocco
- Molecular Modelling and Spectroscopy Research Team, Faculty of Science, Chouaïb Doukkali University, P.O. Box 20, 24000, El Jadida, Morocco
| | - Meryem Zarri
- Organic Synthesis, Extraction and Valorisation Laboratory (SOEV), Faculty of Sciences Ain Chock, Hassan II University of Casablanca, Maarif, B.P. 5366, 20100, Casablanca, Morocco
| | - Mohamed Tahiri
- Organic Synthesis, Extraction and Valorisation Laboratory (SOEV), Faculty of Sciences Ain Chock, Hassan II University of Casablanca, Maarif, B.P. 5366, 20100, Casablanca, Morocco
| | - Mohammed Chafi
- LIPE, Higher School of Technology, Hassan II University of Casablanca, P.O. Box 8012, 20000, Oasis, Morocco.
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Zdravković M, Grekulović V, Suljagić J, Stanković D, Savić S, Radovanović M, Stamenković U. Influence of blackberry leaf extract on the copper corrosion behaviour in 0.5 M NaCl. Bioelectrochemistry 2023; 151:108401. [PMID: 36821939 DOI: 10.1016/j.bioelechem.2023.108401] [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: 12/27/2022] [Revised: 02/01/2023] [Accepted: 02/14/2023] [Indexed: 02/18/2023]
Abstract
The research presented in this paper is focused on blackberry leaf extract (BLE) as a environmentally friendly corrosion inhibitor for copper in 0.5 M NaCl. The caffeic acid, quercetin-3-O-glucoside and kaempferol-3-O-glucoside were identified in BLE by using high-performance liquid chromatography (HPLC-DAD). The BLE functional groups were identified (ATR-FTIR). The electrochemical methods (potentiodynamic polarization, electrochemical frequency modulation and electrochemical impedance spectroscopy) show that BLE acts as a mixed type of inhibitor (max. IE is 97.19 %). The corrosion process is controlled by diffusion (BLE lower than 15 g/L) and charge transfer (15 g/L BLE).
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Affiliation(s)
- Milica Zdravković
- University of Belgrade, Technical Faculty in Bor, V. J. 12, 19210 Bor, Serbia.
| | - Vesna Grekulović
- University of Belgrade, Technical Faculty in Bor, V. J. 12, 19210 Bor, Serbia
| | - Jasmin Suljagić
- University of Tuzla, Faculty of Technology, Dr. Tihomila Markovića br. 1, 75000 Tuzla, Bosnia and Herzegovina
| | - Dalibor Stanković
- University of Belgrade, Faculty of Chemistry, Studentski trg 16, 11000 Beograd, Serbia
| | - Slađana Savić
- University of Belgrade, Faculty of Chemistry, Studentski trg 16, 11000 Beograd, Serbia
| | - Milan Radovanović
- University of Belgrade, Technical Faculty in Bor, V. J. 12, 19210 Bor, Serbia
| | - Uroš Stamenković
- University of Belgrade, Technical Faculty in Bor, V. J. 12, 19210 Bor, Serbia
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Essential Oil of Origanum vulgare as a Green Corrosion Inhibitor for Carbon Steel in Acidic Medium. ARABIAN JOURNAL FOR SCIENCE AND ENGINEERING 2023. [DOI: 10.1007/s13369-023-07693-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/11/2023]
Abstract
AbstractIn this study, Oregano (Origanum vulgare) leaf essential oil was studied as an environmental-friendly anticorrosion agent for carbon steel in aggressive hydrochloric acid. The corrosion inhibition of O. vulgare was characterized by surface morphology, electrochemical, weight loss, theoretical and computational methods. It was found that the highest inhibition performance of O. vulgare was 85.64% at 2 g/l in 1 M HCl. The results of Langmuir isotherm and adsorption thermodynamics investigation demonstrated that the O. vulgare inhibitor adsorbed on the metal surface by the formation of rigid covalent bonds. The adsorption and inhibition centers of the selected inhibitor were studied by the computational methods, resulting in that the hydroxyl functional groups and benzoyl rings are mainly responsible for the high inhibition efficiency.
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Dhouibi I, Flamini G, Bouaziz M. Comparative Study on the Essential Oils Extracted from Tunisian Rosemary and Myrtle: Chemical Profiles, Quality, and Antimicrobial Activities. ACS OMEGA 2023; 8:6431-6438. [PMID: 36844591 PMCID: PMC9947950 DOI: 10.1021/acsomega.2c06713] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/18/2022] [Accepted: 01/25/2023] [Indexed: 06/18/2023]
Abstract
Rosemary (Rosmarinus officinalis L.) and myrtle (Myrtus communis L.) are perennial herbs, typical of the Tunisian flora, with an intense aromatic flavor. Their essential oils, obtained by hydro-distillation, were analyzed by gas chromatography coupled to mass spectrometry and by infrared Fourier transform spectrometry. In addition, these oils were assessed for their physicochemical properties as well as their antioxidant and antibacterial activities. The physicochemical characterization proved to be of good quality by analyzing pH, water content (%), density at 15 °C (g/cm3), and iodine values according to standard test methods. The study of the chemical composition allowed for the identification of 1,8-cineole (30%) and α-pinene (40.4%) as the main constituents of myrtle essential oil, while 1,8-cineole (37%), camphor (12.5%), and α-pinene (11.6%) were identified as principal components in rosemary essential oil. The evaluation of their antioxidant activities permitted to obtain the IC50 values, which ranged between 22.3 and 44.7 μg/mL for DPPH and between 15.52 and 28.59 μg/mL for ferrous chelating assay, for rosemary and myrtle essential oils, respectively, thus indicating that rosemary essential oil is the most effective antioxidant. Furthermore, the antibacterial activity of the essential oils was tested in vitro against eight bacterial strains by the disc diffusion method. The essential oils showed antibacterial effects on both Gram-positive and Gram-negative bacteria.
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Affiliation(s)
- Ines Dhouibi
- Laboratory
of Electrochemistry and Environment, National School of Engineers
of Sfax, University of Sfax, PB ≪1173≫, 3038 Sfax, Tunisia
| | - Guido Flamini
- Dipartimento
di Farmacia, Università di Pisa, Via Bonanno 6, 56126 Pisa, Italy
| | - Mohamed Bouaziz
- Laboratory
of Electrochemistry and Environment, National School of Engineers
of Sfax, University of Sfax, PB ≪1173≫, 3038 Sfax, Tunisia
- Higher
Institute of Biotechnology of Sfax, University
of Sfax, PB ≪1175≫, 3038 Sfax, Tunisia
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6
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Gorjian H, Khaligh NG. Myrtle: a versatile medicinal plant. NUTRIRE : REVISTA DE SOCIEDADE BRASILEIRA DE ALIMENTACAO E NUTRICAO = JOURNAL OF THE BRAZILIAN SOCIETY OF FOOD AND NUTRITION 2023; 48:10. [PMID: 38625264 PMCID: PMC9933039 DOI: 10.1186/s41110-023-00194-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/11/2022] [Accepted: 02/08/2023] [Indexed: 02/18/2023]
Abstract
Myrtus, commonly called myrtle, is a genus of flowering plants in the Myrtaceae family. This study aimed to review myrtle's pharmaceutical, food, and other uses. The pharmacological effects of myrtle for antioxidant, antibacterial, and anti-inflammatory activities, reduction of COVID-19 symptoms, anti-diabetic in the animal model, hepatoprotective in the rat model, antihypertensive, control of intestinal helminthiasis in mice model, inhibition of glucosyltransferase activity, protective effect on oxidative metabolism in the hypothyroidism model, and reducing the damage caused by skin burns are reviewed. In addition, the food uses of this plant such as improving the oxidative and microbial stability of products containing salmon, antimicrobial activity in meat and dairy products, flavoring in sea salt, microbial improvement of fresh fruits during post-harvest storage, animal nutrition, and bio-oil production are summarized. Supplementary Information The online version contains supplementary material available at 10.1186/s41110-023-00194-y.
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Affiliation(s)
- Hayedeh Gorjian
- Department of Food Science and Technology, Sari Agricultural Sciences and Natural Resources University, Sari, Iran
| | - Nader Ghaffari Khaligh
- Department of Food Science and Technology, Sari Agricultural Sciences and Natural Resources University, Sari, Iran
- Nanotechnology and Catalysis Research Center, Institute for Advanced Studies, Universiti Malaya, 50603 Kuala Lumpur, Malaysia
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Masmoudi F, Jedidi I, Amor YB, Masmoudi M. Corrosion Protection Evaluation of Copper Coated with a Block Copolymer and Block Coploymer/Carbon Black Nanoparticles in 3 wt% NaCl Solution. ChemistrySelect 2023. [DOI: 10.1002/slct.202202608] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Affiliation(s)
- Fatma Masmoudi
- Laboratory of Electrochemistry and Environment (LEE) Sfax National Engineering School (ENIS) BPW 3038 Sfax, University of Sfax Tunisia
| | - Ilyes Jedidi
- Colleges of Applied Science of Sohar Ministry of Higher Education Sultanate of Oman
| | - Yasser Ben Amor
- Research Laboratory of Environmental Sciences & Technologies Higher Institute of Environmental Sciences and Technology Carthage University Ben Arous Tunisia
| | - Mohamed Masmoudi
- Laboratory of Electrochemistry and Environment (LEE) Sfax National Engineering School (ENIS) BPW 3038 Sfax, University of Sfax Tunisia
- Preparatory Institute for Engineering Studies of Sfax BP 805 3018 University of Sfax Tunisia
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8
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Can the Langmuir adsorption coefficient be used to derive the adsorption Gibbs energy? J Mol Liq 2022. [DOI: 10.1016/j.molliq.2022.120442] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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9
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Sanni O, Iwarere SA, Daramola MO. Evaluation of Corrosion Inhibition of Essential Oil-Based Inhibitors on Aluminum Alloys. ACS OMEGA 2022; 7:40740-40749. [PMID: 36406532 PMCID: PMC9670707 DOI: 10.1021/acsomega.2c00540] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
There is a high demand for eco-friendly, effective, and high-performance corrosion inhibitors for industrial applications. Thus, the corrosion property of aluminum alloys was studied in essential oil-containing sodium chloride solution at various concentrations. Potentiodynamic polarization, electrochemical impedance spectroscopy (EIS), surface tests, and weight loss analysis were used to study the corrosion inhibition mechanism of the essential oil. The essential oil showed the highest inhibition efficiency of 97.01% at 1000 ppm. A high efficiency of 96.03% was achieved even after 168 h of exposure. The potentiodynamic polarization test showed that the essential oil is a mixed-type inhibitor. EIS results show better adsorption of the oil on the surface of the aluminum at increased inhibitor concentrations. The Langmuir's adsorption isotherm model was found to describe the adsorption behavior. The surface morphology of the uninhibited and inhibited specimens examined by a scanning electron microscope equipped with an energy-dispersive X-ray spectroscope confirmed the protective film of the inhibitor molecules on the aluminum surface.
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Rosmarinus officinalis extract as eco-friendly corrosion inhibitor for copper in 1M Nitric acid solution: Experimental and Theoretical Studies. ARAB J CHEM 2022. [DOI: 10.1016/j.arabjc.2022.104411] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Majeed M, Yousif QA, Bedair MA. Study of the Corrosion of Nickel-Chromium Alloy in an Acidic Solution Protected by Nickel Nanoparticles. ACS OMEGA 2022; 7:29850-29857. [PMID: 36061690 PMCID: PMC9434768 DOI: 10.1021/acsomega.2c02679] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/29/2022] [Accepted: 08/09/2022] [Indexed: 05/17/2023]
Abstract
This study uses nickel nanoparticles coated on the nickel-chromium (Ni-Cr) alloy by the electrodeposition technique to protect the alloy against corrosion. An open-circuit potential and potentiodynamic and linear polarization resistance in a 1 M H2SO4 solution saturated with carbon dioxide were used to study the anticorrosion performance of nanoparticle coatings. When coated with nanomaterials, the corrosion rate of Ni-Cr alloy was lower than when it was bare, and the potential for corrosion increased from -0.433 V for uncoated Ni-Cr alloy to -0.103 V when the electrodes were exposed to saturated calomel. Electrochemical experiments show that nickel-coated Ni-Cr alloy corrosion in sulfuric acid media has high protective characteristics, with an efficiency of 83.69% at 0.165 mA/cm2 current density when pH = 1 is used. As demonstrated by the results of this research, the nickel-chromium alloy can be protected from corrosion in acidic media by a low-acidity bath coating layer. Surface morphologies have shown that coatings at different acidic scales may be able to resist an acid attack because of their excellent adherence to the nickel-chromium alloy surface. Measures for determining and studying the composition of the alloy surface's protective covering were improved using X-ray diffraction (XRD).
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Affiliation(s)
- Mohammad
N. Majeed
- College
of Education, Department of Chemistry, University
of Al-Qadisiyah, Al Diwaniyah 58001, Iraq
| | - Qahtan. A. Yousif
- College
of Engineering, Department of Materials Engineering, University of Al-Qadisiyah, Al
Diwaniyah 58001, Iraq
| | - Mahmoud A. Bedair
- College
of Science and arts, University of Bisha, P.O. Box 101, Al-Namas 61977, Saudi Arabia
- Department
of Chemistry, Faculty of Science (Men’s Campus), Al-Azhar University, Nasr City, 11884 Cairo, Egypt
- , ,
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Silver Thread-Based Microfluidic Platform for Detection of Essential Oils Using Impedance Spectroscopy. APPLIED SCIENCES-BASEL 2022. [DOI: 10.3390/app12073596] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Essential oils (EOs) have a long tradition of use in the medical and cosmetic fields based on their versatile properties, including fungicidal, antiparasitic, and bactericidal effects. Nowadays, with the development of industry and electronics, EOs are increasingly being used in the agricultural and food industries; health industries, including pharmacy and dental medicine; and as cosmetic enhancements. The purpose of this study is to develop a compact and portable platform for the detection of EO type and the concentration levels using knitted silver threads. The method is based on measuring the variation in values of the electrical parameters of the silver threads using electrochemical impedance spectroscopy (EIS). The impedance of the solutions applied on the testing platform was measured in the frequency range from 1 Hz to 200 kHz. The platform was tested using three types of essential oils: tea tree; clary sage; and cinnamon bark oil. Increasing the concentration of essential oils resulted in increasing the electrical resistance of the platform, decreasing the capacitance, and consequently increasing the impedance. The proposed cost-effective platform can be used for the fast determination of the type and quality of essential oils.
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Lin L, Luo C, Li C, Chen X, Cui H. A Novel Biocompatible Ternary Nanoparticle with High Antibacterial Activity: Synthesis, Characterization, and Its Application in Beef Preservation. Foods 2022; 11:foods11030438. [PMID: 35159588 PMCID: PMC8834416 DOI: 10.3390/foods11030438] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2022] [Revised: 01/28/2022] [Accepted: 01/29/2022] [Indexed: 01/27/2023] Open
Abstract
Edible nanoparticles containing antibacterial agents are one of the effective strategies to control foodborne diseases. Herein, novel ternary nanoparticles (TNP) were prepared from rosemary essential oil (REO), nisin and Lycium barbarum polysaccharides (LBP) through hydrophobic and electrostatic interaction. The average particle size of TNP was 211.5 nm, and its encapsulation efficiency reached 86.6%. After the addition of LBP, the physical stability, thermal stability and storage stability of TNP were significantly improved. In vitro, compared with the control group, the population of S. aureus and E. coli O157:H7 in the TNP-treated group was reduced by 2.386 log CFU/mL and 1.966 log CFU/mL, respectively, on the fifth day. The free radical scavenging rate of TNP was 63.15%. The application of TNP on beef presented favorable preservation effects without affecting its color and texture. Therefore, the synthesis strategy of TNP has important reference significance for the research and development of new food antibacterial agents.
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Affiliation(s)
- Lin Lin
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang 212013, China; (L.L.); (C.L.); (X.C.)
- State Key Laboratory of Utilization of Woody Oil Resource, Hunan Academy of Forestry, Changsha 410007, China;
| | - Chencheng Luo
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang 212013, China; (L.L.); (C.L.); (X.C.)
| | - Changzhu Li
- State Key Laboratory of Utilization of Woody Oil Resource, Hunan Academy of Forestry, Changsha 410007, China;
| | - Xiaochen Chen
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang 212013, China; (L.L.); (C.L.); (X.C.)
| | - Haiying Cui
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang 212013, China; (L.L.); (C.L.); (X.C.)
- Correspondence:
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Zhang M, Guo L, Zhu M, Wang K, Zhang R, He Z, Lin Y, Leng S, Chikaodili Anadebe V, Zheng X. Akebia trifoliate koiaz peels extract as environmentally benign corrosion inhibitor for mild steel in HCl solutions: Integrated experimental and theoretical investigations. J IND ENG CHEM 2021. [DOI: 10.1016/j.jiec.2021.06.009] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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15
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Bakhy K, Belhachmi T, Benabdelouahab T, Tomi F, Casanova J, Paoli M. Chemical Variability of Moroccan Myrtle Oil. Chem Biodivers 2021; 18:e2100209. [PMID: 34288384 DOI: 10.1002/cbdv.202100209] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2021] [Accepted: 07/16/2021] [Indexed: 01/04/2023]
Abstract
Thirty-three oil samples isolated from aerial parts of Myrtus communis L. harvested in seven localities, from Northern to Central Morocco, have been analyzed by combination of chromatographic and spectroscopic techniques. The 33 compositions have been subjected to statistical analysis, hierarchical cluster analysis (HCA) and principal component analysis (PCA). Two groups have been differentiated on the basis of their myrtenyl acetate and α-pinene contents and each one was sub-divided in two sub-groups according to the contents of 1,8-cineole and linalool. The compositions of our 33 myrtle oil samples may be named as follow by their main components: sub-group IA (13/33): α-pinene/1,8-cineole/linalool; sub-group IB (6/33): 1,8-cineole/α-pinene; sub-group IIA (10/33): 1,8-cineole/myrtenyl acetate; sub-group IIB (4/33): myrtenyl acetate.
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Affiliation(s)
- Khadija Bakhy
- National Institute of Agricultural Research (INRA), Research Unit on Aromatic and Medicinal Plant, Rabat-Institutes, BP 6570, Rabat, Morocco
| | - Touria Belhachmi
- National Institute of Agricultural Research (INRA), Research Unit on Aromatic and Medicinal Plant, Rabat-Institutes, BP 6570, Rabat, Morocco
| | - Tarik Benabdelouahab
- National Institute of Agricultural Research (INRA), Research Unit on Aromatic and Medicinal Plant, Rabat-Institutes, BP 6570, Rabat, Morocco
| | - Félix Tomi
- Université de Corse-CNRS, UMR 6134 SPE, Equipe Chimie-Biomasse, 20000, Ajaccio, France
| | - Joseph Casanova
- Université de Corse-CNRS, UMR 6134 SPE, Equipe Chimie-Biomasse, 20000, Ajaccio, France
| | - Mathieu Paoli
- Université de Corse-CNRS, UMR 6134 SPE, Equipe Chimie-Biomasse, 20000, Ajaccio, France
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Abbas MA, Bedair MA, El-Azabawy OE, Gad ES. Anticorrosion Effect of Ethoxylate Sulfanilamide Compounds on Carbon Steel in 1 M Hydrochloric Acid: Electrochemical and Theoretical Studies. ACS OMEGA 2021; 6:15089-15102. [PMID: 34151089 PMCID: PMC8210398 DOI: 10.1021/acsomega.1c01274] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/09/2021] [Accepted: 05/20/2021] [Indexed: 05/24/2023]
Abstract
Metal corrosion is an important economic problem globally. One of the best ways to protect metal surfaces from corrosion is by the use of corrosion inhibitors, especially surfactants. This study assesses anticorrosion properties of three inhibitor compounds (S1, S2, and S3) of ethoxylate sulfanilamide containing 2, 10, and 20 units of ethylene oxide on carbon steel in 1 M HCl solution. The anticorrosive performance of S1, S2, and S3 was studied using potentiodynamic polarization (PDP), electrochemical impedance spectroscopy (EIS), adsorption isotherm, surface tests (scanning electron microscopy (SEM), energy-dispersive X-ray (EDX) spectroscopy, and X-ray diffraction (XRD) analysis), and computational studies (density functional theory (DFT) and molecular dynamics (MD) simulations) within the concentration range of 10-6 to 10-2 M at 30 ± 2 °C. The results of the methods used indicate that increasing the concentration of the inhibitor compounds improves the effectiveness of inhibition (from 50.9 to 98%), whereas the inhibition efficiency order for ethoxylated sulfanilamide compounds is S2 > S3 > S1 with the highest inhibiting efficiency, respectively, of 98.0, 95.0, and 90.0% for 10-2 M. Also, PDP indicated that S1, S2, and S3 inhibitors act as mixed-type inhibitors and their adsorption obeys the Langmuir adsorption isotherm model. Surface tests show that the studied compounds can significantly inhibit acid attack via chemical adsorption on the metal. Furthermore, all of the chemical descriptors derived from DFT indicate that the three inhibitors are quite well adsorbed by the adhesion centers on the CS surface. The three compounds' molecular geometries and electronic structures were calculated using quantum chemical calculations. Using theoretical computations, the energy difference between the highest occupied molecular orbital and the lowest occupied molecular orbital has been determined to represent chemical reactivity and kinetic stability of a composition.
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Affiliation(s)
| | - Mahmoud A. Bedair
- Department
of Chemistry, Faculty of Science (Men’s Campus), Al-Azhar University, Nasr City, 11884 Cairo, Egypt
- College
of Science and Arts, University of Bisha, P.O. Box 101, 61977 Al-Namas, Saudi Arabia
| | | | - Ehab S. Gad
- Department
of Chemistry, Faculty of Science (Men’s Campus), Al-Azhar University, Nasr City, 11884 Cairo, Egypt
- Chemistry
Department, College of Science and Arts, Jouf University, P.O. 77455, Saudi Arabia
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