Article
Polymer Science
Samuel Sanchez-Serrano, Daniela J. Gonzalez-Mendez, Jose A. Olivas-Valdez, Natalie Millan-Aguinaga, Viridiana Evangelista, Oscar E. Contreras, Marlene N. Cardoza-Contreras
Summary: In this study, pH-responsive Chitosan-AgCl-doped ZnO hybrid hydrogels were synthesized and characterized. The hydrogels showed the potential for loading aquaculture bioactive compounds and exhibited antimicrobial properties against a threatening pathogen. The synthesized hydrogels demonstrated a pH-responsive behavior and were suitable for encapsulation and controlled release in aquaculture.
Article
Materials Science, Multidisciplinary
Farnaz Heidari Laybidi, Abbas Bahrami, Mohammad Saeid Abbasi, Mojtaba Rajabinezhad, Bahar Heidari Beni, Mohammad Reza Karampoor, S. H. Mousavi Anijdan
Summary: The main objective of this investigation was to study the effects of incorporating zinc oxide nanoparticles into a bioactive glass matrix on the bioactivity and structural properties of the deposited coating. The findings showed that the deposited ZnO-containing bioactive glass had a relatively rough surface texture and exhibited promising cell viability.
Article
Polymer Science
E. M. Abdelfattah, H. Elzanaty, W. B. Elsharkawy, M. A. Azzam, Z. M. Elqahtani, S. Alotibi, M. Alyami, T. Fahmy
Summary: Poly (vinyl alcohol)/chitosan/ZnO (PVA/Cs/ZnO) nanocomposite films were prepared through an environmentally friendly approach and characterized using various techniques. The results showed that the PVA/Cs blend matrix encapsulated the ZnO nanoparticles. The addition of ZnO NPs increased the glass transition and melting temperature values of the PVA/Cs blend. The ATR-FTIR spectra indicated the existence of hydrogen bonding between the OH groups of PVA/Cs and ZnO nanoparticles. The nanocomposites exhibited better thermal stability and enhanced optical properties with increasing concentration of ZnO nanoparticles. Moreover, PVA/Cs/ZnO nanocomposites showed significant antibacterial activity.
Article
Biochemistry & Molecular Biology
Mohamed S. El-Okaily, Amira M. EL-Rafei, Mona Basha, Nour T. Abdel Ghani, Mayyada M. H. El-Sayed, Asim Bhaumik, Amany A. Mostafa
Summary: Nano-fiber composites consisting of a blend of polyvinyl alcohol (PVA) and chitosan (CS) with different weight ratios of nano-bioactive glass (BG) were prepared by electrospinning. The drug release efficiency of the developed nano-fiber composites with BG was enhanced and sustained, with the release pattern taking place through a two-stage intra-particle diffusion mechanism. The presence of BG in the nano-fibers significantly retarded the drug release profile compared to their BG-free counterparts.
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2021)
Article
Biochemistry & Molecular Biology
Liu Yang, Lixuan Ren, Yanzhen Zhao, Siqun Liu, Huifang Wang, Xianghua Gao, Baolong Niu, Wenfeng Li
Summary: In this study, arginineated chitosan (ACS) was used to synthesize ACS-ZnO NPs, which were then incorporated into a polyvinyl alcohol (PVA) matrix to form antimicrobial films. The ACS and ACS-ZnO NPs exhibited better water solubility and good cytocompatibility. The addition of ACS and ACS-ZnO NPs improved the mechanical properties, water barrier, and antibacterial activities of the composite film, and it also showed biodegradability. Therefore, PVA films based on ACS and ACS-ZnO NPs have great potential for food packaging applications.
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2023)
Article
Biochemistry & Molecular Biology
Anbazhagan Sathiyaseelan, Kandasamy Saravanakumar, Xin Zhang, Kumar Vishven Naveen, Myeong-Hyeon Wang
Summary: Drug-resistant microorganisms can be overcome by using combinational drug delivery systems based on biopolymer chitosan (CS) and metal nanoparticles. Therefore, PEGylated zinc oxide nanoparticles (P-ZnO NPs) decorated chitosan-based nanoparticles (CS NPs) were prepared to deliver ampicillin (AMP) for improved antibacterial activity.
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2023)
Article
Materials Science, Ceramics
Silmara C. Santos, Katharina G. Spaniol, Nikolas E. Chaves-Silva, Roberta P. M. Fernandes, Debora S. Tavares, Wilson Acchar, Euler A. dos Santos
Summary: The study aimed to produce CuO-containing bioactive glass/PVA membranes with osteogenic and antibacterial properties for guided bone regeneration. The composite membranes showed ability to form an apatite layer in simulated body fluid, improved osteoblastic proliferation, and higher damage to bacteria. These membranes have low swelling rate, important surface bioactivity, and low degradation over time, meeting the basic requirements for GBR barriers while effectively controlling bacterial growth.
JOURNAL OF NON-CRYSTALLINE SOLIDS
(2021)
Article
Biochemistry & Molecular Biology
Abdelrahman O. A. Eldenary, H. M. Abd El-Salam, Abeer Enaiet Allah
Summary: Concerns over heavy metals in wastewater and their impact on the environment and human health can be addressed through adsorption technology. This study developed efficient and cost-effective adsorbents, specifically chitosan-grafted polyacrylonitrile/ZnO, for the treatment of water contaminated with heavy metals. Various tests confirmed the morphological and structural properties of the materials, and the adsorption behavior of Fe(II) ions was studied. The adsorption process followed the Langmuir model and pseudo-second-order kinetics, suggesting a monolayer formation of Fe(II) over the adsorbent surface.
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2023)
Article
Materials Science, Multidisciplinary
M. Mohan Babu, P. Venkateswara Rao, Rajendra K. Singh, Hae-Won Kim, N. Veeraiah, Mutlu Oezcan, P. Syam Prasad
Summary: Bioactive phosphate glasses doped with Zn2+ demonstrated excellent bioactivity and bone regeneration potential in simulated body fluid. ZnO concentration and immersion time were found to impact the formation of hydroxyapatite (HAP) layer on the sample surface, while controlled release of Zn2+ ions could monitor the degradation rate. In vitro cell studies showed favorable outcomes in terms of rMSC cell proliferation. Antibacterial activity against E. coli and S. aureus was confirmed, highlighting the enhanced biological and antibacterial properties of the samples due to ZnO doping.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2021)
Article
Materials Science, Ceramics
Md Nur Uddin, Md. Mohebbullah, Syed Maminul Islam, Md. Jobaer, Sajjatul Islam Mahedi, Ayub Ali
Summary: In this study, mikania micrantha (MM)/chitosan (CS) electrospun nanocomposites with a polyvinyl alcohol (PVA) back layer were prepared. The nanocomposites exhibited antibacterial activity against both gram-positive (S. aureus) and gram-negative (E. coli) bacteria, with a zone of inhibition of approximately 20-25 mm. The incorporation of PVA improved the thermal and moisture management properties of MM-chitosan nanocomposites. The nanofibers prepared from bioactive agents of MM showed potential for biomedical applications, such as wound dressing materials.
JOURNAL OF SOL-GEL SCIENCE AND TECHNOLOGY
(2023)
Article
Food Science & Technology
Jianghao Yan, Min Li, Huifang Wang, Xiaojie Lian, Yanying Fan, Zhigao Xie, Baolong Niu, Wenfeng Li
Summary: Novel biodegradable composite packages based on biodegradable materials show enhanced performances in terms of tensile strength, water resistance, and antioxidant activity. The addition of Cu2O@NCs further improves the properties of the films, making them suitable for functional food packaging with great potential.
Article
Chemistry, Applied
Miao Zhang, Xiaoni Qiao, Wenwei Han, Tianze Jiang, Fei Liu, Xia Zhao
Summary: A novel composite hydrogel was fabricated, promoting cell proliferation and migration for wound healing, while also exhibiting significant antibacterial activity. This study highlights the potential of marine carbohydrate composite hydrogels in wound care management.
CARBOHYDRATE POLYMERS
(2021)
Article
Materials Science, Coatings & Films
Agnieszka Witecka, Svenja Valet, Michal Basista, Aldo Roberto Boccaccini
Summary: Composite coatings based on chitosan and bioactive glass particles fabricated by electrophoretic deposition on pre-treated magnesium alloys show promising potential in bone regeneration applications by suppressing substrate corrosion and promoting cell response.
SURFACE & COATINGS TECHNOLOGY
(2021)
Article
Food Science & Technology
Saba Ebrahimzadeh, Mahmoud Rezazadeh Bari, Hamed Hamishehkar, Hossein Samadi Kafil, Loong-Tak Lim
Summary: The study developed and characterized composite chitosan films loaded with Zataria multiflora and cinnamon for active food packaging. The films showed antimicrobial properties against both Gram-positive and Gram-negative bacteria, as well as antifungal activity against A.flavus. Morphological analysis revealed the films had homogeneous nanofibers with diameters less than 200 nm, and the addition of cinnamon significantly enhanced elongation properties.
LWT-FOOD SCIENCE AND TECHNOLOGY
(2021)
Article
Biotechnology & Applied Microbiology
Phong Thanh Vo, Huu The Nguyen, Hai Thi Trinh, Viet Minh Nguyen, Anh-Tuan Le, Huy Quang Tran, Thuy Thi Thu Nguyen
Summary: This study presents a new fertilizer formulation based on urea, chitosan, and poly (vinyl alcohol) for slow release of urea, with improved hydrolytic stability and sustained release effects. The interaction between urea and functional groups of chitosan and PVA significantly affects the thermal properties of the formulation. The formulation shows potential as a slow-release fertilizer to reduce adverse environmental and economic impacts in agriculture.
ENVIRONMENTAL TECHNOLOGY & INNOVATION
(2021)
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)