Article
Chemistry, Applied
Hanadi Katouah, Nashwa M. El-Metwaly
Summary: In this study, smart fibers with multifunctional properties were developed by synthesizing and immobilizing a nanocomposite of polypyrrole and silver nanoparticles into plasma-activated cotton. The treated fabrics exhibited good antibacterial performance, electrical conductivity, superhydrophobic properties, and high protection against ultraviolet light. The study also investigated the morphologies and chemical composition of the treated fabrics using various analytical techniques.
REACTIVE & FUNCTIONAL POLYMERS
(2021)
Article
Chemistry, Multidisciplinary
Heon Lee, Jaegu Park, Young-Kwon Park, Byung-Joo Kim, Kay-Hyeok An, Sang-Chai Kim, Sang-Chul Jung
Summary: In this study, bimetallic nanoparticles composed of silver and iron were successfully precipitated on the surface of activated carbon using plasma in liquid process (PLP), allowing for controlled composition of the nanoparticles. Spherical nanoparticles with a size of 100-120 nm were observed on the surface of the composite, showing potential for applications in the preparation of energy and environmental materials.
Article
Biotechnology & Applied Microbiology
Sk Najrul Islam, Syed Mohd Adnan Naqvi, Sadia Parveen, Absar Ahmad
Summary: This study focuses on the biofabrication of stable water-dispersible Ag/Ag2O NPs using a mycogenic approach, with potential applications in glucose sensing and dye degradation. Compared to bacterial and plant-mediated synthesis methods, the mycogenic approach offers advantages in terms of reproducibility, reliability, and cost-effectiveness.
Article
Biochemistry & Molecular Biology
Fahad M. Aldakheel, Dalia Mohsen, Marwa M. El Sayed, Khaled Ali Alawam, AbdulKarim S. Binshaya, Shatha A. Alduraywish
Summary: In this study, silver nanoparticle composites were synthesized using green tea leaf extract as a reducing agent and microwave irradiation technology. The AgNPs/chitosan grafted polyvinyl alcohol hydrogel samples were successfully prepared. The antibacterial activity and wound-healing ability of the hydrogel samples were evaluated in vitro and in vivo, and promising results were obtained.
Article
Environmental Sciences
Karnan Singaravelu Dharshini, T. Yokesh, Mariappan Mariappan, Fuad Ameen, M. Amirul Islam, Anbazhagan Veerappan
Summary: In this study, silver nanoparticles (AgNPs) were synthesized using eco-friendly methods and their potential for detecting Hg2+ ions in environmental samples was investigated. The aqueous extract of Hemidesmus indicus root rapidly converted silver ions into AgNPs under sunlight. The synthesized AgNPs were found to detect Hg2+ ions and could be immobilized onto paper to create a portable device for sensing mercury in water.
Article
Chemistry, Analytical
Madhuka V. Liyanage, Robert A. Latour, George Chumanov
Summary: Nanocomposite films containing silver nanoparticles separated by thin polymer layers were fabricated using different methods. The films exhibited changes in electrical conductivity when exposed to moist ammonia and water vapors. The conductivity changes were attributed to hydrogen bonding and direct adsorption. Drop casting method on nylon filter membranes resulted in the most reproducible films. The films with polyvinylpyrrolidone polymer layers showed a low limit of detection for ammonia in the presence of interfering water vapor. The films could be developed as ammonia sensors for environmental and biomedical applications.
SENSORS AND ACTUATORS B-CHEMICAL
(2024)
Article
Physics, Applied
L. Cechova, F. Krcma, M. Kalina, O. Man, Z. Kozakova
Summary: Silver and gold nanoparticles were produced using pinhole discharge in a precursor solution, with factors like discharge time, precursor concentration, and additives affecting particle size and stability. The addition of capping agents reduced the power input needed for stable discharge, while the stability of final particles was related to particle size, with smaller particles being more stable.
JOURNAL OF APPLIED PHYSICS
(2021)
Article
Chemistry, Multidisciplinary
Nusrat Sharmin, Chengheng Pang, Izumi Sone, James Leon Walsh, Cecilia Gorriz Fernandez, Morten Sivertsvik, Estefania Noriega Fernandez
Summary: Eco-friendly nanocomposite films based on SA were synthesized for potential food packaging applications, showing superior mechanical properties and antimicrobial activity. The formation of AgNPs and their effects on solution viscosity and shear-thinning behavior were confirmed through various tests, highlighting the potential of these films in food packaging industry.
Article
Environmental Sciences
Jasneet Kaur, Monika Bhattu, Mohit Rawat, Rajender S. Varma, Roberto Acevedo, Mohamed Shaban, Sameerah I. Al-Saeedi, Jagpreet Singh
Summary: This study presents a facile and cost-effective method for the preparation of carbon dots and carbon dot silver nanocomposites using peanut shells through hydrothermal treatment. The synthesized carbon dot silver nanocomposites showed excellent catalytic activity, sensing ability towards heavy metal ions, and antimicrobial potential. The integration of catalysis, sensing, and antimicrobial potentials in this study provides an effective remediation platform.
ENVIRONMENTAL RESEARCH
(2023)
Article
Chemistry, Physical
Wenlong Tu, Jie Cheng, Rongtao Yang, Zengjing Guo, Dawei Yu, Zhijie Sheng, Jing Zhao, Huafeng Song, Yiyan Song, Fu Yang
Summary: The overuse of antibiotics has led to the emergence of drug-resistant pathogens, but functional nanomaterials have been found to be a new antimicrobial approach to complement traditional antibiotics. In this study, Ag/Co3O4 nanosheet composites were synthesized using a combined synthetic strategy. These composites exhibited excellent antimicrobial and catalytic reduction activity.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Polymer Science
Oksana Velgosova, Livia Macak, Erika Mudra, Marek Vojtko, Maksym Lisnichuk
Summary: The aim of this work was to prepare a polymer matrix composite doped by silver nanoparticles and investigate their effects on the optical and toxic properties of the polymers. Two different colloids of silver nanoparticles were prepared by chemical reduction. The addition of silver nanoparticles to the PVA polymer matrix resulted in changes in its optical and antibiofilm properties. This study provides insights into the potential applications of silver nanoparticles in modifying the properties of polymer composites.
Article
Materials Science, Multidisciplinary
Marieta Constantin, Maria Spiridon, Daniela Luminita Ichim, Oana Maria Daraba, Dana Mihaela Suflet, Maria Ignat, Gheorghe Fundueanu
Summary: A simple and eco-friendly method for the synthesis of silver nanoparticles using oxidized polysaccharides as reducing and capping agents was reported. The nanoparticles exhibited small size and round shape after optimizing the synthesis parameters. Characterization techniques confirmed the stability of the nanoparticles and their antibacterial activity, as well as their efficient photocatalytic degradation of water-soluble pollutants.
MATERIALS CHEMISTRY AND PHYSICS
(2023)
Article
Chemistry, Inorganic & Nuclear
Rizki Damayanti, Tamrin, Zul Alfian, Eddiyanto, Muhammad Zulfajri
Summary: A facile method for producing silver nanoparticles with star anise was used in the study. The resulting PVA/gelatin nanocomposite films showed significant antimicrobial effects and improved thermal stability.
INORGANIC CHEMISTRY COMMUNICATIONS
(2022)
Article
Biochemistry & Molecular Biology
Zakariya Mehmood, Muhammad Ikram, Muhammad Imran, Anum Shahzadi, Ali Haider, Anwar Ul-Hamid, Walid Nabgan, Junaid Haider, Shaukat Hayat
Summary: In this study, green synthesized Ag/CaO nanocomposites were fabricated using a plant extract as a reducing agent. The nanocomposites showed promising catalytic activity in degrading toxic dyes and exhibited strong antimicrobial activity. Molecular docking investigation revealed their potential as inhibitors of certain enzymes. Overall, the study highlights the potential of green synthesized Ag/CaO for various applications.
PROCESS BIOCHEMISTRY
(2022)
Article
Environmental Sciences
Dilek Yalcin, Ilkay Acikgoz Erkaya, Belgin Erdem
Summary: In this study, AgNPs were synthesized using Oscillatoria princeps biomass, and the synthesized AgNPs were validated and characterized. The results showed that the AgNPs synthesized from Oscillatoria princeps have the ability to inhibit biofilm formation, indicating their potential therapeutic effect on biofilm-associated infections caused by bacteria and yeasts.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2022)
Article
Nanoscience & Nanotechnology
M. Skiba, V. Vorobyova, O. Pasenko
Summary: Silver nanoparticles (Ag NPs) have been deposited on powder TiO2 using a novel atmospheric pressure discharge cold plasma treatment method without the need for harmful reducing agents. The composite TiO2/Ag-NPs structure, with TiO2 sphere cores and Ag nanoparticles shell, demonstrated enhanced catalytic efficiency compared to pure TiO2 and TiO2/Ag+ composites. The degradation of MB was found to decrease from 78.0 to 37.0% with the rise in startup MB concentration and increase in composite amount, but further increase in catalyst mass led to a decrease in MB degradation.
APPLIED NANOSCIENCE
(2022)
Article
Chemistry, Applied
Viktoria Vorobyova, Margarita Skiba
Summary: The study investigates the effect of extraction solvent on the efficacy of apricot pomace extract (APE) as a sustainable corrosion inhibitor for mild steel in sodium chloride solution. The results show that the corrosion inhibition efficiency decreases in the order of solution of 2-propanol/ethanol apricot pomace (E/PAPE) extract > ethanol (EAPE) > 2-propanol (PAPE). The growth of inhibitory properties is prolonged, with corrosion rate reduction observed after 40-48 h of exposure.
PIGMENT & RESIN TECHNOLOGY
(2022)
Article
Chemistry, Multidisciplinary
V. Vorobyova, O. Linyucheva, O. E. Chygyrynets, M. Skiba, G. S. Vasyliev
Summary: The investigation focuses on the physicochemical properties and stability of deep eutectic solvents (DESs), with quantum-chemical calculations used to predict the formation of more stable solvents. Different DESs were synthesized and their characteristics were analyzed, including electrical conductivity and electrochemical window width.
MOLECULAR CRYSTALS AND LIQUID CRYSTALS
(2023)
Article
Chemistry, Multidisciplinary
Margarita Skiba, Victoria Vorobyova, Ihor Kovalenko, Natalya Makarshenko
Summary: The paper presents the results of studies on obtaining and environmental application of silver nanoparticles using carboxymethyl cellulose as a capping agent and Ag-0(NPs)/TiO2 nanocomposite synthesized by plasma-liquid discharge. The findings indicate that the shape of Ag nanoparticles is spherical with a size of 20-30 nm. The photocatalytic efficiency of the TiO2/Ag composite for the degradation of tetracycline antibiotic is higher than that of pure TiO2.
MOLECULAR CRYSTALS AND LIQUID CRYSTALS
(2023)
Article
Chemistry, Inorganic & Nuclear
M. Skiba, V. Vorobyova, K. Sorochkina
Summary: In this study, silver nanoparticles were synthesized using a novel and environmentally friendly method. The use of green stabilizers led to better antiradical activity, which was influenced by the content of phenolic and polyphenolic compounds. The type of stabilizer had a decisive influence on the manifestation of antimicrobial properties.
JOURNAL OF CLUSTER SCIENCE
(2023)
Article
Biochemistry & Molecular Biology
Victoria I. Vorobyova
Summary: This study synthesized silver nanoparticles (AgNPs) for the first time using deep eutectic solvent (DES)-based grape pomace extracts (GPE). The DES-based extracts showed lower reducing powers compared to water-based GPE, but acted as effective capping agents for creating nanosize particles with colloidal stability. The synthesized AgNPs exhibited significant antibacterial activity and did not induce cytogenotoxic and genotoxic changes in Allium cepa L. cells at concentrations up to 10%.
BIOINORGANIC CHEMISTRY AND APPLICATIONS
(2023)
Article
Chemistry, Multidisciplinary
Victoria Vorobyova, Georgii Vasyliev, Margarita Skiba, Svitlana Frolenkova, Julia Zaporozhets, Olena Gnatko, Olga Linyucheva
Summary: New function-oriented deep eutectic solvents (DESs) containing l-proline or betaine and DL-lactic acid were used to extract polyphenol compounds from grape pomace. The hydrogen bonding between the DES components was confirmed by FTIR and H-1 NMR spectra. The physicochemical characteristics of the DESs were affected by the presence of water, influencing density, viscosity, and electrical resistance. Ultrasound-assisted extraction using betaine-based and proline-based DESs improved the extraction of green compounds from grape pomace, with proline-based DES resulting in a more diverse compound profile. The DESs also intensified the destruction of the cell wall structure, promoting the release of polyphenols.
Article
Nanoscience & Nanotechnology
Margarita Skiba, Viktoria Vorobyova
Summary: A one-pot plasma-liquid synthesis and coating method was used to prepare composite materials of Ag NPs on commercial photocatalysts TiO2, using different capping agents. The samples showed an absorption peak in the visible region and a reduced band gap, independent of the capping agent or Ag NPs. The type of capping agent did not affect the photocatalytic activity of the composites, but had an impact on the antioxidant and antibacterial effects.
APPLIED NANOSCIENCE
(2023)
Article
Chemistry, Inorganic & Nuclear
Victoria Vorobyova, Margarita Skiba, Vladimir Dzhyndzhoian, Olga Linucheva
Summary: The synergistic corrosion inhibition for steel in saline solution was achieved by a combination of peach pomace extract (PPE) and 3-Aminopropyltriethoxysilane (APTES), providing over 750 hours of protection. Optimization of the solvent for extracting waste products of peach pomace processing was conducted. The highest efficiencies of APTES, PPE, and the combination inhibitor (PPE/APTES) were 3.34%, 85.41%, and 99.25% at 500 ppm, respectively. The excellent inhibition performance of the combination inhibitor can be attributed to the synergistic effect between PPE and APTES. This study comprehensively characterizes the mechanism of action of PPE and APTES as a combination corrosion inhibitor for saline solution using targeted analyses and commonly used methods such as gravimetric, electrochemical measurement, SEM/EDX, and FTIR. Test results confirm that the combined extract and organosilan control 96-98% of corrosion in the saline solution. Potentiodynamic polarization curves indicate that the combination corrosion inhibitor acts as a mixed-type inhibitor, significantly reducing the corrosion current density from -20 (without inhibitor) to 2.1 mA/cm2 upon addition of the inhibitor. A SWOT analysis was used to evaluate the relevance of adopting the corrosion inhibitor in chemical industry applications.
INORGANIC CHEMISTRY COMMUNICATIONS
(2023)
Article
Electrochemistry
Georgii Vasyliev, Viktoria Vorobyova, Dmytro Uschapovskiy, Mykhailo Kotyk, Olga Linucheva
Summary: This work investigates the influence of polarization curve slope on the accuracy of local electrochemical deposition. Copper was deposited on the surface of stainless steel by using a rotating anode in a sulphate electrolyte. The influence of electrolyte composition was studied, and the profile of deposited parts was analyzed. Results showed that increasing the amount of sulfuric acid and the presence of an additive in the electrolyte improved deposition accuracy by changing the slope of the cathodic polarization curve (from 320 to 1100 mA V-1cm-2).
JOURNAL OF ELECTROCHEMICAL SCIENCE AND ENGINEERING
(2023)
Article
Chemistry, Physical
Svitlana Kyrii, Zakhar Maletskyi, Nataliya Klymenko, Harsha Ratnaweera, Tetiana Mitchenko, Tetiana Dontsova, Iryna Kosogina
Summary: Improving existing commercial adsorption materials, such as activated carbon, is crucial for developing more effective and versatile sorbents that can treat various types of wastewater. This study proposes a cost-effective method of modifying activated carbon by impregnating it with red mud components. The results show a significant increase in sorption capacity, making activated carbon modification by red mud components a promising direction for enhancing the adsorption activity of commercial sorbents.
APPLIED SURFACE SCIENCE ADVANCES
(2023)
Proceedings Paper
Materials Science, Multidisciplinary
V. Vorobyova, M. Skiba, O. Chygyrynets', T. Pylypenko, T. Motronyuk, Yu Fateev
Summary: This study investigated the inhibition of steel corrosion in 0.5 M sodium chloride solution by apricot pomace extract (APE). The results showed that the presence of APE increased the inhibition efficiency and linear polarization resistance value after 48 hours of exposure. Characterization of APE using gas chromatography-mass spectrometry (GC-MS) revealed the presence of compounds responsible for corrosion inhibition and adsorption on mild steel surface. The antioxidant activity, total phenolic and flavonoids contents of APE were analyzed. Scanning electron microscopic (SEM) and atomic force microscopy (AFM) were used to characterize the surface morphology of uninhibited and inhibited mild steel specimens, indicating the adsorption of inhibitor molecules on the steel surface.
MATERIALS TODAY-PROCEEDINGS
(2022)
