Article
Chemistry, Multidisciplinary
Guibin Lin, Chenhui Zhao, Wenqiang Liao, Jianmin Yang, Yunquan Zheng
Summary: Rubropunctatin-functionalized silver nanoparticles (R-AgNPs) were successfully synthesized using rubropunctatin as the reducing and blocking agent. R-AgNPs exhibited excellent stability and strong antibacterial activity, with the mechanism of antibacterial action being the destruction of bacterial cell membrane. The cytotoxicity of R-AgNPs was lower than that of commercial silver nanoparticles.
Article
Chemistry, Multidisciplinary
Ana Flavia Burlec, Monica Hancianu, Irina Macovei, Cornelia Mircea, Adrian Fifere, Ioana-Andreea Turin-Moleavin, Cristina Tuchilus, Silvia Robu, Andreia Corciova
Summary: This study presents an environmentally friendly method for synthesizing silver nanoparticles using extracts from Tagetes erecta flowers. The nanoparticles were successfully synthesized through the reduction of silver ions by biocompounds found in the plant. The synthesized nanoparticles were characterized using various techniques, revealing their small size, spherical shape, and stability. Furthermore, the nanoparticles exhibited enhanced antioxidant and antimicrobial activities compared to the initial extracts.
APPLIED SCIENCES-BASEL
(2022)
Article
Biochemistry & Molecular Biology
Amal Mohamed Al-Mohaimeed, Wedad Altuhami Al-Onazi, Maha Farouk El-Tohamy
Summary: This work describes the environmentally friendly synthesis of zinc oxide nanoparticles using aqueous oat extract. The synthesized nanoparticles exhibited excellent antibacterial and antioxidant activity, making them promising for biomedical applications. Spectroscopic and microscopic investigations confirmed the formation of nanoscale zinc oxide particles with an average size of 100 nm. The nanoparticles showed significant inhibitory effects against various bacterial strains and demonstrated strong antioxidant activity. Additionally, zinc oxide nanoparticles exhibited efficient photocatalytic degradation of Rhodamine B dye under UV irradiation.
Article
Food Science & Technology
Sonia Tammar, Nidhal Salem, Wissem Aidi Wannes, Hajer Limam, Soumaya Bourgou, Nedia Fares, Sarra Dakhlaoui, Majdi Hammami, Saber Khammassi, Giovanni Del Re, Kamel Hessini, Kamel Msaada
Summary: The study investigated the chemical composition and biological activities of Aloysia citrodora methanolic extract as an antioxidant, antibacterial, antifungal, and anti-inflammatory agent based on different bioclimatic collection stages. The results showed variations in phenolic compounds and antioxidant activities with climatic and environmental factors, as well as a significant dependency between regions and biological activities. Principal component analysis indicated a close relationship among phenylpropanoids, phenolic compounds, and the studied biological activities.
Article
Chemistry, Multidisciplinary
Danni Feng, Renyin Zhang, Mengting Zhang, Ashe Fang, Feng Shi
Summary: In this study, silver nanoparticles were synthesized using glycyrrhizin as a reducing agent and stabilizer. The synthesized nanoparticles showed high antibacterial activity against Escherichia coli and Staphylococcus aureus, and low cytotoxicity to human kidney epithelial cells. The results suggest that glycyrrhizin-reduced silver nanoparticles have potential applications in antibacterial treatments.
Review
Biochemistry & Molecular Biology
Ashvi Sanjay Jain, Pranita Subhash Pawar, Aira Sarkar, Vijayabhaskarreddy Junnuthula, Sathish Dyawanapelly
Summary: Green synthesis of silver nanoparticles has gained attention in various industries due to its ecofriendly, biocompatible, nontoxic, and cost-effective properties. Recent studies have shown that green-synthesized silver nanoparticles exhibit excellent physicochemical properties and demonstrate antibacterial, antifungal, and antiparasitic activities.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(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
Materials Science, Multidisciplinary
G. Maheshwaran, R. Selva Muneeswari, A. Nivedhitha Bharathi, M. Krishna Kumar, S. Sudhahar
Summary: This study focuses on the synthesis of lanthanum oxide nanoparticles using Eucalyptus globulus leaf extracts, analyzing their structure and properties, with the aim of using La2O3 as an inhibiting drug to control inflammation and diabetes.
Article
Materials Science, Multidisciplinary
Dinorah I. Rodriguez-Otamendi, Victor Meza-Laguna, Dwight Acosta, Edgar Alvarez-Zauco, Lazaro Huerta, Vladimir A. Basiuk, Elena V. Basiuk
Summary: The study investigated the deposition of silver nanoparticles on amine-functionalized and non-functionalized graphene oxide, finding that functionalized supports led to more controlled formation of Ag NPs. DFT calculations showed that Ag NP binding was strongest on pristine GO, followed by ODA and DAO-functionalized materials.
DIAMOND AND RELATED MATERIALS
(2021)
Article
Biochemistry & Molecular Biology
Pavani Chirumamilla, Sunitha Bai Dharavath, Shasthree Taduri
Summary: The study demonstrates that the biosynthesis of silver nanoparticles using the aqueous leaf extract of Solanum khasianum yields stable nanoparticles with therapeutic activities.
APPLIED BIOCHEMISTRY AND BIOTECHNOLOGY
(2023)
Article
Materials Science, Textiles
Tanu Shree Roy, Monabbir Rafsan Fahim, M. Tauhidul Islam, Md Abdul Gafur, Tahmina Ferdous
Summary: This study synthesized antibacterial silver nanoparticles by reducing Ag+ to Ag-0 using sweet orange peel extract. Various analysis methods were used to characterize the formation of silver nanoparticles. The treated cotton and flax fabrics showed good color distribution and increased UV protection factor. The antibacterial efficacy of the fabrics remained satisfactory even after 10 consecutive washing cycles.
JOURNAL OF NATURAL FIBERS
(2022)
Article
Biochemistry & Molecular Biology
Asem A. Mohamed, Mohammed Abu-Elghait, Nehad E. Ahmed, Salem S. Salem
Summary: This study demonstrated the mycogenic synthesis of medically applied zinc oxide and copper oxide nanoparticles. The nanoparticles showed high antimicrobial and antibiofilm activities, suggesting their potential for medical applications in limiting the spread of pathogenic microbes.
BIOLOGICAL TRACE ELEMENT RESEARCH
(2021)
Article
Chemistry, Multidisciplinary
Kuppusamy Elumalai, M. R. Kavipriya, A. Lakshmi Prabha, Kaliyamoorthy Krishnappa, Jeganathan Pandiyan, Marcello Nicoletti, Naiyf S. Alharbi, Shine Kadaikunnan, Jamal M. Khaled, Marimuthu Govindarajan
Summary: Developing floral-based replacement molecules can help manage blood-sucking vectors in an eco-friendly way. The extract and nanoparticles derived from Atalantia monophylla show promising effectiveness against mosquitoes and ticks, with little negative impact on non-target species.
GREEN PROCESSING AND SYNTHESIS
(2022)
Article
Chemistry, Inorganic & Nuclear
Durga Devi Suppiah, Nurhidayatullaili Muhd Julkapli, Suresh Sagadevan, Mohd Rafie Johan
Summary: Metal and metal oxide nanoparticles can be produced using natural extracts instead of chemicals. Plant extraction techniques have advantages for industrial production due to their simplicity and environmental friendliness. Phytochemicals play a significant role in the synthesis reactions and can act as capping, reducing, and stabilizing agents. This green synthesis route is cost-effective and does not require expensive or hazardous chemicals. The review paper explores different green iron oxide nanoparticles and their potential applications in photocatalysis and biological activities.
INORGANIC CHEMISTRY COMMUNICATIONS
(2023)
Article
Multidisciplinary Sciences
P. Rama, P. Mariselvi, R. Sundaram, K. Muthu
Summary: The present study synthesized silver nanoparticles (Ag NPs) using a green method with Aegle marmelos leaf extract as the reducing and capping agents. UV-vis spectrophotometry confirmed the formation of Ag NPs, and phytochemical and FT-IR analysis indicated the presence of flavonoids as the reducing and capping agents. Transmission electron microscopy revealed spherical Ag NPs with a size range of approximately 30-50 nm. The synthesized Ag NPs exhibited potential anticancer, antimicrobial, and antioxidant activity, and showed cytotoxicity against MDA-MB-231 breast cancer cells. Additionally, Ag NPs acted as an excellent photocatalyst for the degradation of Basic Fuchsin dye within 18 minutes.
Article
Materials Science, Multidisciplinary
Ananta Dutta, Surjya K. Pal, Sushanta K. Panda
Summary: In the realm of micro-Friction Stir Welding (FSW), this study investigates the influence of pinless and pin tool on hook formation, temperature evolution, and bonding mechanisms. The study reveals that pin tool improves joint strength and reduces axial force during traversing. Pin tool also exhibits a higher proportion of recrystallized grains compared to pinless tool, resulting in better weld quality.
MATERIALS TODAY COMMUNICATIONS
(2024)
Article
Materials Science, Multidisciplinary
Abdelmalek Habes, Mehdi Derradji, Oussama Mehelli, Fouad Benaliouche, Slimane Abdous, Youcef Medjaouri, Nour Chirine Abderrahim, Hakima Fodil, Mohamed El Amine Kadi
Summary: In recent years, there has been significant progress in advancing nanomaterials with exceptional properties for electromagnetic (EM) wave absorption. This study investigates the application of a novel thermosetting phenolic resin as a polymeric matrix for EM shielding, highlighting the enhancement of stability with the incorporation of zinc oxide nanoparticles.
MATERIALS TODAY COMMUNICATIONS
(2024)
Article
Materials Science, Multidisciplinary
Xiaoxing Zhang, Yongchao Luo, Kai Xu, Weihao Liu, Shuangshuang Tian, Benli Liu, Jiahao Wang, Feng Hu
Summary: This study calculates and analyzes the adsorption performance and sensing characteristics of Cu-MoTe2 for SF6 decomposition components. The results show that Cu-MoTe2 chemisorbs SO2 and H2S, while physisorbs SOF2. Cu-MoTe2 has the potential to be used as a chemical sensor material.
MATERIALS TODAY COMMUNICATIONS
(2024)
Article
Materials Science, Multidisciplinary
Xin Qu, Xinyu Sang, Yarong Lv, Ce Wang, Ping Hu, Quanyi Guo, Yong Liu
Summary: In this study, a PLLA-COI multilayer nanofiber membrane was prepared to prevent peritendinous adhesion, and it was found to have good cell compatibility and anti-adhesion effect, effectively promoting the recovery of Achilles tendon injury.
MATERIALS TODAY COMMUNICATIONS
(2024)
Article
Materials Science, Multidisciplinary
Ching-Yuan Ho, Chen-Yi Su, Wei-Zhe Hu
Summary: An equivalent electrical circuit (EEC) is established to understand the droplet-base electricity generation (DEG) mechanism, using voltage-time curve decomposition. The concept of Debye length is introduced to explain charge density at the interface between the ionic droplet and the PTFE surface. This study provides valuable insights into the exponential decay of output voltage and the improvement of solar panel performance in alternating rainy and dry weather through correct circuit design.
MATERIALS TODAY COMMUNICATIONS
(2024)
Article
Materials Science, Multidisciplinary
Iori Ono, Takeo Oku, Atsushi Suzuki, Sakiko Fukunishi, Tomoharu Tachikawa, Tomoya Hasegawa
Summary: The effects of adding rubidium (Rb) and ethylammonium (CH3CH2NH3, EA) to guanidinium [C(NH2)3, GA] based CH3NH3PbI3 perovskite solar cells were investigated. The lattice constants and (100)-orientation of EA and Rb-modified perovskite crystals increased compared to the as-prepared perovskite. The addition of GA and EA effectively improved the photovoltaic properties of the device under indoor light conditions.
MATERIALS TODAY COMMUNICATIONS
(2024)
Article
Materials Science, Multidisciplinary
Xuewu Li, Hongxing Wang, Zhiguo Xing, Yanfei Huang, Weiling Guo, Haidou Wang, Yanfang Zhang, Longlong Zhou
Summary: This study prepared a novel composite antireflective structure with slotted holes using FDTD simulation combined with femtosecond laser design to further improve the infrared anti-reflective performance. The results show that the antireflection performance of the simulated groove-hole composite structure is better than that of the individual groove and hole structures, and the nanoparticle structures can further improve the antireflection performance in the infrared region.
MATERIALS TODAY COMMUNICATIONS
(2024)
Article
Materials Science, Multidisciplinary
Sepideh Soltani, Hajar Ghanbari, S. Mohammad Mirkazemi
Summary: In this study, h-BN and r-BN structures were synthesized through controlled nitridation. The h-BN exhibited sheet-like morphology, while the r-BN formed needle-like hollow structures.
MATERIALS TODAY COMMUNICATIONS
(2024)
Article
Materials Science, Multidisciplinary
Wanying Zhang, Xiaoyuan Wang, Yibo Ai, Weidong Zhang
Summary: This study investigates the impact of oxygen corrosion on the mechanical properties of uranium and uranium alloys and develops a feature-guided decision tree algorithm for prediction. The research highlights crucial correlations discovered through feature engineering, improving the performance of machine learning models. The mechanical properties of uranium and uranium alloys after oxygen corrosion are successfully predicted with a prediction error of less than 5%.
MATERIALS TODAY COMMUNICATIONS
(2024)
Article
Materials Science, Multidisciplinary
Qiong Cheng, Yao Zhao, Juntao Zhuang, Ahmad M. Alshamrani
Summary: This study presents a model to simulate the transient dynamics of a car's hood door during an accident, with reinforced structure in the axial direction using graphene nanoplatelets. The results are verified through comparison with open-source results and deep neural networks. The study highlights the importance of graphene nanoplatelets in the composite system's transient and forced vibrations, and provides valuable suggestions for future structural designs.
MATERIALS TODAY COMMUNICATIONS
(2024)
Article
Materials Science, Multidisciplinary
Rostyslav Nizinkovskyi, Thorsten Halle, Manja Krueger
Summary: Cu-precipitation in reactor pressure vessel steels is a major concern for the degradation of mechanical properties. This study develops and implements a non-local phase-field model to investigate the equilibrium morphology of precipitates in the over-aged state. The model confirms that the precipitates should have an oblate lath-like shape, which is supported by experimental data. The orientation of the precipitates is consistent with literature. The mechanism of morphology accommodation is explained using the invariant-line method. However, the equilibrium values of elongation significantly deviate from experimental data, likely due to the metastable state of the precipitates during the coarsening process.
MATERIALS TODAY COMMUNICATIONS
(2024)
Article
Materials Science, Multidisciplinary
Xiaowei Li, Yafei Liu, Shiyu Luan, Deqing Ma, Xiaoyu Liu, Qiangbing Liu, Jinhui Wang
Summary: In this study, the hot deformation behavior of as-cast Mg-2Ho binary alloy under different strain rates and deformation temperatures was systematically studied. The microstructure and dynamic recrystallization mechanisms were analyzed using SEM and EBSD techniques. A strain-compensated Arrhenius constitutive equation and a PSO-BP ANN model based on machine learning were established to analyze the flow behavior. The experimental results showed that the flow stress decreased with increasing temperature and decreasing strain rate. The PSO-BP ANN model demonstrated good accuracy in predicting flow stress.
MATERIALS TODAY COMMUNICATIONS
(2024)
Article
Materials Science, Multidisciplinary
Jiaxin Liu, Guangkai Liao, Zhenyan Xie, Bowen Li, Lingna Cui, Yuejun Liu
Summary: This study investigated the rheological behavior of polyamide 6 (PA6) film during biaxial stretching and found that the elastic-plastic deformation during stretching affected the stress rebound or relaxation during heat setting. The relaxation spectrum and activation energy spectrum were calculated, revealing the process of stress relaxation as energy release and stress rebound as energy absorption. The results provide theoretical guidance for understanding the biaxial stretching deformation mechanism of polymer films.
MATERIALS TODAY COMMUNICATIONS
(2024)
Article
Materials Science, Multidisciplinary
Monisha Manathanath, Benu George, Juraij Kandiyil, Subramaniam Sujatha, Suchithra Tharamel Vasu, Sujith Athiyanathil, Unnikrishnan Gopalakrishna Panicker
Summary: This study explores a method that combines a biodegradable polymer scaffold with a photosensitizer for antibacterial photodynamic therapy. The results show a high inhibition rate against E. coli and S. aureus using this method.
MATERIALS TODAY COMMUNICATIONS
(2024)
Article
Materials Science, Multidisciplinary
Mohammad Hemmat Esfe, S. Ali Eftekhari, S. Mohammad Sajadi, Mohammad Hashemian, Soheil Salahshour, Seyed Majid Motallebi
Summary: In this study, an artificial neural network was used to predict the dynamic viscosity of MWCNT-ZnO (25:75)/SAE 10W40 oil nano-lubricant. The temperature, shear rate, and solid volume fraction were found to have significant effects on the dynamic viscosity, with shear rate being the most influential parameter.
MATERIALS TODAY COMMUNICATIONS
(2024)