Article
Chemistry, Applied
Rui Zhang, Jiyuan Yu, Xiaoyu Guo, Weidong Li, Yunhan Xing, Yurong Wang
Summary: Silver nanoparticles (AgNPs) were rapidly synthesized with the assistance of Monascus pigments under simulated sunlight. Various analytical tools were used to characterize the prepared AgNPs, confirming their stability and potential antibacterial, antioxidant, and extraordinary catalytic activity. The biosynthesized AgNPs have shown significant antibacterial activity, antioxidant capacity, and the ability to catalyze the degradation of various dyes, indicating their potential applications in biomedical, food packaging, pathogen mitigation, and industrial wastewater management.
APPLIED ORGANOMETALLIC CHEMISTRY
(2021)
Article
Biochemistry & Molecular Biology
Jolanta Flieger, Wojciech Franus, Rafal Panek, Monika Szymanska-Chargot, Wojciech Flieger, Michal Flieger, Przemyslaw Kolodziej
Summary: The study demonstrates the suitability of plant extracts such as green tea, Ilex paraguariensis, and Salvia officinalis for the green synthesis of silver nanoparticles. The extracts were tested for antioxidant power and reducing power activity, with green tea showing the highest antioxidant activity.
Article
Materials Science, Multidisciplinary
Yingshan Jin, Yuting Lu, Anbazhagan Sathiyaseelan, Xin Zhang, Kumar Vishven Naveen, Myeong-Hyeon Wang
Summary: Peony seed cake extract (PSCE) was used to synthesize silver nanoparticles (Ag NPs) with antibacterial, antioxidant, and cytotoxicity properties. The PSCE-Ag NPs showed a spherical shape, average size of 105.6 ± 3.49 nm, and a zeta potential of -41.8 ± 12.6 mV. They effectively inhibited the growth and biofilm formation of various bacteria and exhibited strong free radical scavenging ability. Furthermore, the PSCE-Ag NPs were non-toxic to erythrocytes, egg-chorioallantoic membrane, and human embryonic kidney cells (HEK293), while significantly suppressing breast cancer cell (BT474) growth.
Article
Biochemistry & Molecular Biology
Mehmet Firat Baran, Cumali Keskin, Ayse Baran, Abdulkerim Hatipoglu, Mahmut Yildiztekin, Selcuk Kucukaydin, Kadri Kurt, Hulya Hosgoren, Md. Moklesur Rahman Sarker, Albert Sufianov, Ozal Beylerli, Rovshan Khalilov, Aziz Eftekhari
Summary: This study focuses on the synthesis and characterization of silver nanoparticles (AgNPs) using Allium cepa peel and evaluates their antimicrobial, antioxidant, and anticholinesterase activities. The biosynthesized nanoparticles were characterized using various techniques, and their crystal size and zeta potential were determined. AC-AgNPs showed strong growth inhibitory activities against specific microorganisms, exhibited antioxidant properties, and demonstrated inhibitory effects on key enzymes. Overall, this eco-friendly and cost-effective method has potential applications in biomedicine and industry.
Article
Polymer Science
Esma Nur Gecer
Summary: Salvia aethiopis has been used to synthesize stable silver nanoparticles, which were characterized using various spectroscopic methods. The nanoparticles exhibited significant biological effects, antioxidant activity, and stability.
JOURNAL OF INORGANIC AND ORGANOMETALLIC POLYMERS AND MATERIALS
(2021)
Article
Environmental Sciences
M. Mani, R. Harikrishnan, P. Purushothaman, S. Pavithra, P. Rajkumar, S. Kumaresan, Dunia A. Al Farraj, Mohamed Soliman Elshikh, Balamuralikrishnan Balasubramanian, K. Kaviyarasu
Summary: In this study, nanostructured silver particles (NS-AgPs) were successfully synthesized using bio active agents present in Cleome gynandra leaf extracts via green synthesis. Various analytical techniques such as UV-vis, FTIR, SEM, TEM, DLS, and antibacterial studies were utilized to confirm the existence, size, stability, and antibacterial activity of NS-AgPs.
ENVIRONMENTAL RESEARCH
(2021)
Article
Biochemistry & Molecular Biology
Diego Alberto Lomeli-Rosales, Adalberto Zamudio-Ojeda, Oscar Kevin Reyes-Maldonado, Morelia Eunice Lopez-Reyes, Georgina Cristina Basulto-Padilla, Edgar Jose Lopez-Naranjo, Victor Manuel Zuniga-Mayo, Gilberto Velazquez-Juarez
Summary: In this study, the synthesis of metallic nanoparticles using extracts from Capsicum leaves was investigated. The leaf extract demonstrated the best results for the synthesis of gold and silver nanoparticles. The synthesized nanoparticles exhibited stability and ease of synthesis, and showed antioxidant and antimicrobial activities.
Article
Food Science & Technology
Fouad K. Alsammarraie, Mengshi Lin, Azlin Mustapha
Summary: In this study, silver nanoparticles (AgNP) were successfully synthesized using turmeric powder. The synthesized AgNP showed significant antibacterial activities against food pathogenic bacteria and exhibited strong antioxidant capability. The findings suggest that AgNP coated with phyto-constituents have powerful bioactivities, making them a potential candidate for applications in food packaging and medical commodities.
Article
Infectious Diseases
Javier Emanuel Castaneda-Aude, Jose Ruben Morones-Ramirez, David Alejandro De Haro-Del Rio, Angel Leon-Buitimea, Enrique Diaz Barriga-Castro, Carlos Enrique Escarcega-Gonzalez
Summary: The synthesis of ultra-small silver nanoparticles (AgNPs) using citrus peel residues as reducing and stabilizing agents and their antibacterial activity against multidrug-resistant clinical Staphylococcus aureus were studied. The AgNPs were characterized by various techniques, showing ultra-small, monodisperse, quasi-spherical morphology with an average particle size of 2.42 nm. XRD analysis confirmed the crystal size of the AgNPs. The AgNPs exhibited potent inhibitory activity against resistant S. aureus, suggesting their potential in combating clinical multi-resistant bacterial strains.
Article
Chemistry, Inorganic & Nuclear
Hamed Barabadi, Faraz Mojab, Hossein Vahidi, Boshra Marashi, Niloufar Talank, Omid Hosseini, Muthupandian Saravanan
Summary: This study aimed to fabricate Zataria multiflora-derived silver nanoparticles (AgNPs) and compare their antibacterial and biofilm inhibitory activities against Staphylococcus aureus ATCC 25923 with commercial AgNPs. The plant-mediated fabricated AgNPs (P-AgNPs) exhibited significant antibacterial activity and biofilm inhibition at lower concentrations, showing stronger effects compared to commercial AgNPs.
INORGANIC CHEMISTRY COMMUNICATIONS
(2021)
Article
Chemistry, Applied
A. Wasilewska, U. Klekotka, M. Zambrzycka, G. Zambrowski, I. Swiecicka, B. Kalska-Szostko
Summary: Understanding the properties of silver nanoparticles is crucial for developing new antimicrobial agents. In this study, silver nanoparticles were synthesized using natural reducing agents from plant extracts, and their antimicrobial properties were evaluated against various microorganisms. The results showed that the nanoparticles obtained from different extracts exhibited specific characteristics and varied antimicrobial activities.
Article
Plant Sciences
Ezz Al-Dein M. Al-Ramamneh, Ayoup M. Ghrair, Ashok K. Shakya, Khalid Y. Alsharafa, Khalid Al-Ismail, Samer Y. Al-Qaraleh, Jacek Mojski, Rajashri R. Naik
Summary: Sterculia diversifolia is widely distributed in Jordan as an ornamental plant. The phytochemical studies on the volatile compounds in its leaves are limited despite the increasing demand for its applications. Recently, there has been a report on the synthesis of silver nanoparticles (AgNPs) using the aqueous extract derived from Brachychiton populneus leaves. This study produced AgNPs using aqueous or ethanolic extracts from S. diversifolia leaves and detected the volatile compounds in ethanolic leaf extracts using Shimadzu GC-MS equipment.
Article
Chemistry, Multidisciplinary
Hiba Abbas Widatalla, Layla Fathi Yassin, Ayat Ahmed Alrasheid, Shimaa Abdel Rahman Ahmed, Marvit Osman Widdatallah, Sahar Hussein Eltilib, Alaa Abdulmoneim Mohamed
Summary: The use of silver nanoparticles (AgNPs), with their antiviral, antifungal, anti-inflammatory, and anticancer activities, is of great importance in nanomedicine. In this study, AgNPs were synthesized using a nontoxic and ecofriendly method with green tea leaf extract as a reducing agent. The synthesized AgNPs showed antibacterial activity against Staphylococcus aureus and Klebsiella sp., indicating their potential as an antimicrobial agent.
NANOSCALE ADVANCES
(2022)
Article
Infectious Diseases
Alberto Antonio Neira-Vielma, Hector Ivan Melendez-Ortiz, Josue Israel Garcia-Lopez, Saul Sanchez-Valdes, Mario Alberto Cruz-Hernandez, Josefina Guadalupe Rodriguez-Gonzalez, Sonia Noemi Ramirez-Barron
Summary: The increase in antibiotic-resistant bacteria poses a real threat to human health, and silver nanoparticles (AgNPs) may offer a viable solution. In this study, pecan nut shell extracts were examined for their potential to produce AgNPs. The NPs were synthesized using an extract rich in bioactive molecules, and their characteristics were determined through various spectroscopy and microscopy techniques. The antibacterial tests showed that AgNPs exhibited greater inhibition against Gram-negative bacteria compared to Gram-positive bacteria.
Article
Chemistry, Physical
Mariana Constantin, Iuliana Raut, Raluca Suica-Bunghez, Cristina Firinca, Nicoleta Radu, Ana-Maria Gurban, Silviu Preda, Elvira Alexandrescu, Mihaela Doni, Luiza Jecu
Summary: Green chemistry is a simple method that produces stable and well-dispersed nanoparticles in water. This study used aqueous mycelial extracts of Ganoderma lucidum to synthesize silver nanoparticles. The nanoparticles were characterized using various techniques such as UV-visible spectroscopy, SEM, XRD, and FTIR analysis. The synthesized nanoparticles showed antimicrobial effectiveness against bacterial and yeast strains, reducing environmental and public health risks.
Article
Environmental Sciences
Jagdeep Singh, A. S. Dhaliwal
ENVIRONMENTAL TECHNOLOGY
(2020)
Article
Polymer Science
Jagdeep Singh, A. S. Dhaliwal
Article
Engineering, Environmental
Jagdeep Singh, A. S. Dhaliwal
Summary: A novel nanocomposite adsorbent containing silver nanoparticles (AgNPs) was synthesized for the efficient removal of Methylene blue (MB) dye from aqueous phase. The characterization of the nanocomposite showed stable formation of AgNPs inside the polymer matrix with an average size of 100 nm. The adsorption capacity was improved and the kinetics and isotherm models indicated favorable adsorption behavior, making the nanocomposite a promising adsorbent for MB dye removal from liquid phase.
JOURNAL OF POLYMERS AND THE ENVIRONMENT
(2021)
Article
Materials Science, Ceramics
Ankit Kumar, Pravin Kumar, A. S. Dhaliwal
Summary: By studying the phase evolution of calcium-doped zirconia after sintering at 1400 degrees C, it was found that with increasing calcium doping, the cubic phase in zirconia develops and achieves near-total stabilization at 16 mol-% doping of calcium. The findings were validated through microstructure and elemental analyses, as well as Raman spectroscopic studies, indicating potential applications in new technology such as oxygen sensors and solid electrolytes.
ADVANCES IN APPLIED CERAMICS
(2021)
Article
Chemistry, Multidisciplinary
Jagdeep Singh, A. S. Dhaliwal
Summary: In this study, a facile method of electrochemical and photocatalytic degradation of MB dye using eco-friendly nanocomposites based on reduced graphene oxide/silver nanowires (rGO/AgNWs) was demonstrated. The synthesized nanocomposite was characterized by various analytical techniques and it was found that the rGO/AgNWs with 9.5 wt% Ag content showed the highest degradation efficiency for both electrochemical and photocatalytic degradation.
JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS
(2022)
Article
Materials Science, Ceramics
Ankit Kumar, Pravin Kumar, A. S. Dhaliwal
Summary: The phase evolution of calcium-doped zirconia has been studied at various sintering temperatures, revealing the stabilization of the monoclinic and cubic phases. With increasing sintering temperature, the development of the cubic phase is observed, ultimately achieving a fully stabilized cubic phase at 1400 degrees C. The presence of calcium is uniformly distributed in the samples, and the calcium-stabilized zirconia shows good thermal stability and higher hardness compared to pure zirconia.
JOURNAL OF THE KOREAN CERAMIC SOCIETY
(2022)
Article
Crystallography
Ankit Kumar, Pravin Kumar, A. S. Dhaliwal
Summary: This study investigated the phase transformations and morphological properties of homogeneous zirconia thin films, with a thickness of 250 nm, synthesized on silicon substrate. Despite the amorphous nature of the deposited films, it was observed that a phase transformation from cubic phase to monoclinic phase occurred in the temperature range of 600-800 degrees C. The results also showed that the grain size of zirconia increased with the increase in annealing temperature.
Article
Environmental Sciences
J. Singh, A. S. Dhaliwal
Summary: This paper reports the microwave-assisted green synthesis of a mesoporous adsorbent decorated with silver nanoparticles (AgNPs) on reduced graphene oxide (rGO) for the effective removal of two basic dyes. The use of extract of Ocimum tenuiflorum as a reducing agent not only reduces the graphene oxide and Ag+ ions, but also prevents the agglomeration of rGO sheets. Various characterization techniques were employed to study the crystallinity, chemical composition, surface morphology, and specific surface area of the synthesized nanocomposite. The results reveal the suitability of the pseudo-second-order kinetics and Langmuir isotherm model for the adsorption of the dyes, with maximum adsorption capacities of 970 mg/g for Methylene blue and 900 mg/g for Rhodamine B dye. The higher adsorption capacity is attributed to the synergetic effect of AgNPs, higher surface area, and higher zeta potential of the rGO/AgNPs nanocomposite. Furthermore, the synthesized nanocomposite exhibits excellent reusability after multiple uses. Therefore, the rGO/AgNPs nanocomposite may prove to be a noble adsorbent for the removal of basic dye from aqueous solutions.
INTERNATIONAL JOURNAL OF ENVIRONMENTAL SCIENCE AND TECHNOLOGY
(2023)
Article
Materials Science, Multidisciplinary
Ankit Kumar, S. K. Singh, Pravin Kumar, A. S. Dhaliwal
Summary: Phase transformations in zirconia thin films induced by ion-beam irradiation have been studied. The structural and morphological properties of the films were modified after irradiation with different fluences. For the as-deposited film, an amorphous phase transformed into a cubic phase with increasing fluence, while for the annealed film, a fraction of cubic phase transformed into a monoclinic phase with increasing fluence. Surface features, such as grain agglomeration and grain boundary diffusion, were observed with increasing fluence.
JOURNAL OF MATERIALS RESEARCH
(2022)
Article
Chemistry, Physical
Karan Bansal, Jagdeep Singh, A. S. Dhaliwal
Summary: Silver-decorated nanocomposite based on reduced graphene oxide was successfully synthesized using leaf extract of Azadirachta indica as a reducing agent. The properties of the synthesized Ag/rGO nanocomposite, including its structure, surface morphology, and electrochemical performance, were studied using various analytical techniques. The presence of phytochemicals in the leaf extract that played a role in the in-situ formation of AgNPs and reduction of GO into rGO was confirmed through FTIR analysis.
FULLERENES NANOTUBES AND CARBON NANOSTRUCTURES
(2023)
Article
Chemistry, Inorganic & Nuclear
Karan Bansal, Jagdeep Singh, A. S. Dhaliwal
Summary: The present work focuses on the in-situ synthesis of Fe3O4/rGO magnetic nanocomposite using the leaf extract of Azadirachta indica as a reducing agent. The study demonstrates the effective cooperation between rGO array and Fe3O4 nanoparticles. The synthesized nanocomposite shows high crystallinity, strong Fe-O stretching bonding, tunable energy bandgap, superparamagnetic nature, and high thermal stability, making it a potential material for advanced applications.
INORGANIC AND NANO-METAL CHEMISTRY
(2023)