Article
Biophysics
Zhaonan Li, Dechao Jiao, Wenguang Zhang, Kewei Ren, Lingxiao Qiu, Chuan Tian, Yahua Li, Jing Li, Xueliang Zhou, Yanan Zhao, Xinwei Han
Summary: The study developed polylactic acid and silver nanoparticles nanofiber membranes with antibacterial and antihyperplasia properties, which showed promising results in treating rabbit tracheal stenosis by reducing inflammation and tissue hyperplasia.
COLLOIDS AND SURFACES B-BIOINTERFACES
(2021)
Article
Nanoscience & Nanotechnology
Fangqi Chen, Leqing Xu, Yanpei Tian, Andrew Caratenuto, Xiaojie Liu, Yi Zheng
Summary: This study introduces a high-energy conversion efficiency photothermal absorber using polycaprolactone nanofiber composite with the incorporation of carbon nanotubes or carbon nanoparticles, achieving ultra-high solar absorptance. Electrospinning enables scalable fabrication of nanostructured materials, providing a new approach for low-cost and high-efficiency solar energy utilization in the future.
ACS APPLIED NANO MATERIALS
(2021)
Article
Polymer Science
Mai I. El-kaliuoby, Alaa M. Khalil, Ahmed M. El-Khatib, Nader Shehata
Summary: The study presents a non-traditional antibacterial treatment using nanocomposites with silver nanoparticles and exposure to electromagnetic waves. The results indicate that the nanocomposites exhibit maximum inhibition on bacteria and show improved antibacterial impact compared to individual components.
Article
Green & Sustainable Science & Technology
Weijian Shi, Jiawei Cai, Yuan Yang, Chao Xu, Jianwei Lu, Shuping Wu
Summary: Carboxymethyl cellulose (CMC)/polyvinyl alcohol (PVA) composite nanofiber membranes were prepared by electrostatic spinning using CMC and PVA as raw materials. The membranes exhibited high filtration performance and adsorption capacity for heavy metal ions. The adsorption process was confirmed to be a chemical adsorption mechanism.
Article
Biochemistry & Molecular Biology
Chun-Nan Wu, Te-En Wang, Chen-Che Hsieh, Kuan-Chen Cheng, Kevin C. W. Wu
Summary: Developing biocompatible and antibacterial PLLA/TOCNF/AgNP films is a promising strategy to address public health issues and plastic pollution.
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2023)
Article
Chemistry, Physical
Lavanya Thirugnanam, Manikandan Palanisamy, Satheesh Kaveri, Sundara Ramaprabhu, Vilas G. Pol, Mrinal Dutta
Summary: TiO2 nanoparticles decorated nitrogen-doped helical carbon nanofiber-carbon nanotube hybrid material with high specific surface area and nanoporous structure was prepared by low-cost electrospinning and hydrothermal method. The hybrid material showed higher reversible charge capacities compared to conventional graphite microbeads anode, indicating better performance than graphite for LIBs.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2021)
Article
Biochemistry & Molecular Biology
Minjian Liao, Yue Pan, Xuewei Fu, Shangjing Wu, Shiqi Gan, Ziyang Wu, Hui Zhao, Wenxu Zheng, Yong Cao, Wuyi Zhou, Xianming Dong
Summary: In this study, a polylactic acid nanofibrous composite film with a combination of Ag2O-hemp fibers was developed and applied to fruit fresh-keeping packaging, showing good antimicrobial effects. The film exhibited favorable mechanical properties and excellent antibacterial activity against various bacteria and fungi. The experiments on red grapes demonstrated that the modified PLA nanofiber film could effectively prolong the spoilage time and maintain the freshness of the fruit.
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2023)
Article
Chemistry, Physical
Wenjie Song, Huihui Wang, Ziqi Zhang, Yang Cao, Mingxin Zhang, Ping Zhang, Yongming Zhang, Zhongxin Liu, Yijun Shen, Wei Huang
Summary: In this study, Ag-Ni/cellulose paper was synthesized using commercial cellulose papers as substrates by the seed-mediated method. The paper exhibited high light absorption at the full wavelength range due to the synergistic effect of localized surface plasmon resonance (LSPR) of Ag NPs and the interband transitions (IBTs) of Ni. It showed a high energy utilization efficiency of 93.8% under one-sun irradiation and a water evaporation rate of 1.87 kg m-2 h-1. The paper also demonstrated excellent antibacterial performance, which was closely related to the content of Ag NPs. These findings provide new opportunities for the commercial production of cost-effective, green, and portable solar evaporators for various applications.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2023)
Article
Polymer Science
Majid Sohrabi, Marjan Abbasi, Asghar Sadighzadeh
Summary: In this study, PAN-Ag membranes with good antibacterial performance and high filtration efficiency were successfully fabricated through the optimization of conditions. These membranes have small pore size, high porosity, and mechanical strength, making them suitable for various applications such as face masks, indoor air filtration, and clean rooms.
Review
Chemistry, Multidisciplinary
Vignesh Nayak, Jyothi Mannekote Shivanna, Shwetharani Ramu, Sabarish Radoor, R. Geetha Balakrishna
Summary: This article mainly introduces the importance of nanofiber membranes in mitigating fouling of membranes, and briefly discusses the fabrication processes, surface modifications and chemical modifications of nanofiber membranes. Moreover, the application of nanofiber membranes in wastewater treatment and their antifouling abilities are discussed, along with prospects for future development.
Article
Environmental Sciences
Ali Seraj, Alireza Allafchian, Fathallah Karimzadeh, Arian Valikhani, Seyed Amir Hossein Jalali
Summary: In this study, an enhanced antibacterial agent was developed by inlaying silver nanoparticles (AgNPs) on a kappa-carrageenan (KC) base and coating them on Fe3O4 magnetic cores (Fe3O4@KC@Ag). The resulting Fe3O4@KC@Ag nanocomposites showed improved antibacterial activity due to the decreased agglomeration of AgNPs. These findings suggest that Fe3O4@KC@Ag nanocomposites could be promising agents for combating bacterial infections in aqueous environments.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Article
Polymer Science
Duy-Nam Phan, Muhammad Qamar Khan, Van-Chuc Nguyen, Hai Vu-Manh, Anh-Tuan Dao, Phan Thanh Thao, Ngoc-Mai Nguyen, Van-Tuan Le, Azeem Ullah, Muzamil Khatri, Ick-Soo Kim
Summary: This study demonstrates the controllable release properties and synergistic antibacterial actions between orange essential oil (OEO) and silver nanoparticles (AgNPs) incorporated onto cellulose nanofibers. The immobilization of AgNPs onto the surface of cellulose nanofibers and the incorporation of OEO into the polymer matrix were successfully achieved. The combined effects of AgNPs and OEO showed distinct antibacterial activities against E. coli microorganisms.
Review
Materials Science, Multidisciplinary
Yan Wang, Tomoyuki Yokota, Takao Someya
Summary: Electrospun nanofibers have advantages in flexibility, transparency, and conductivity in the field of soft electronics. The structure, properties, and assembly strategies for flexible/stretchable electronic devices utilizing electrospun nanofibers are highlighted. Recent progress includes the design and fabrication of various electronic devices such as conductors, sensors, transistors, and energy harvesting and storage components.
NPG ASIA MATERIALS
(2021)
Article
Materials Science, Multidisciplinary
Weili Shao, Jingyi Niu, Ruikai Han, Simeng Liu, Kai Wang, Ying Cao, Pengju Han, Xiang Li, Hui Zhang, Hongqin Yu, Xuelong Zhu, Li Cao, Fan Liu
Summary: This study focuses on the development of nanofiber air-filtration materials with excellent antibacterial properties. A multiscale poly(lactic acid) nanofiber membrane was prepared using electrospinning and modified with quaternary ammonium salts and N-halamine to induce antibacterial properties. The modified membrane exhibited a long-lasting and excellent bactericidal effect against Staphylococcus aureus and Escherichia coli. Compared to unmodified membranes, the modified membranes maintained mechanical properties and filtration performance while also showing improved tensile strength. The filtration performance of the prepared air filter was found to be higher than commercial filters. This research has significant importance in the fields of air filtration, medical hygiene, and environmental protection.
ACS APPLIED POLYMER MATERIALS
(2023)
Article
Chemistry, Physical
Sirui He, Lei Jiang, Jia Liu, Jie Zhang, Wei Shao
Summary: The combination of peppermint oil (PO) and amoxicillin (AM) in nanofiber membranes shows strong synergistic antimicrobial effect, making it a promising material for various antibacterial applications.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2022)
Article
Chemistry, Physical
S. Sivasankaran, Hany R. Ammar, El-Sayed M. Sherif, Abdulaziz S. Alaboodi, Abdel-baset H. Mekky
Summary: This study investigates the influence of Al2O3 on the microstructure, phase changes, and mechanical and wear performances of CrFeCuMnNi high-entropy alloy matrix composites (HEMCs). The synthesized HEMCs consisted of both FCC and BCC phases, with the FCC phase being the major stable phase. The addition of Al2O3 particles led to a decrease in grain size of the matrix, resulting in improved mechanical and wear performances. The incorporation of Al2O3 particles effectively dispersed and refined the structure, leading to increased compressive strength and improved wear resistance.
Article
Chemistry, Physical
Hany R. Ammar, Subbarayan Sivasankaran, El-Sayed M. Sherif, Fahad A. Almufadi, Abdel-baset H. Mekky
Summary: AA5083-WC composites were developed by ball milling and hot consolidation. The composites exhibited a homogeneous dispersion of WC particulates in the AA5083 matrix without any interactions at the matrix/reinforcement interface. The incorporation of WC particulates significantly improved the compressive stress-strain behaviour and enhanced the resistance to wear and friction. The AA5083-12%WC (AW-12) composite displayed the maximum strength and the highest resistance to wear and friction, making it a promising candidate for tribological applications.
Article
Crystallography
Ubair Abdus Samad, Mohammad Asif Alam, Asiful H. Seikh, Jabair A. Mohammed, Saeed M. Al-Zahrani, El-Sayed M. Sherif
Summary: This research builds upon our previous work, which investigated changes in the properties of epoxy coatings using different ratios of two types of hardener. The best stoichiometric ratio was employed in this study to modify the coatings further by incorporating 1, 2, and 3 wt.% micro aluminium (Al) pigments for carbon steel panels. The coated panels were characterized after 7 days of curing using X-ray diffraction, scanning electron microscopy, thermogravimetric analysis, pendulum hardness, scratch test, and nano-indentation. Electrochemical tests were conducted in a 3.5% sodium chloride (NaCl) solution for different exposure periods. The presence of 1% Al was found to provide the highest corrosion resistance after exposure, and longer immersion periods (14, 21, and 30 days) improved corrosion resistance and reduced coating degradation.
Article
Crystallography
Subbarayan Sivasankaran, El-Sayed M. Sherif, Hany R. R. Ammar, Abdulaziz S. S. Alaboodi, Abdel-baset H. Mekky
Summary: This study investigates the influence of 3 vol.% Al2O3, 3 vol.% TiO2, and 3 vol.% Y2O3 on the microstructural changes and corrosion resistance of the CrFeCuMnNi high-entropy alloy. The developed oxide-dispersed high-entropy composites (ODS-HECs) exhibited a stable FCC phase, a small amount of ordered BCC-B2 structure, Fe2O3, and corresponding dispersed oxide phases. The corrosion rate decreased with the incorporation of oxide particles, and the CrFeCuMnNi-3 vol.% TiO2 ODS-HECs showed the highest corrosion resistance.
Article
Thermodynamics
Moh Yaseen, Sawan Kumar Rawat, Umair Khan, Anup Singh Negi, Manoj Kumar, El-Sayed M. Sherif, Ahmed M. Hassan, Ioan Pop
Summary: This study discusses the impact of buoyancy force and Hall effects on the time dependent stagnation point flow of Ag-TiO2/water hybrid nanofluid flow over a rotating disk. The governing equations are transformed into ordinary differential equations using similarity transformations and numerically solved using MATLAB. The results are validated and the influence of relevant parameters on the properties of flow and heat transmission rate is analyzed graphically. The outcomes of this study have practical importance in various fields utilizing rotating disk systems.
CASE STUDIES IN THERMAL ENGINEERING
(2023)
Article
Chemistry, Physical
Badr M. Thamer, Faiz A. Al-aizari, Hany S. Abdo
Summary: In this study, nitrogen-rich conjugated polymer PDAN was successfully synthesized and incorporated into PAN NFs to form PDAN/PAN NFs composite. The incorporation of PDAN significantly increased the adsorption capacity of the composite for AB10B dye. The designed PDAN/PAN NFs composite showed efficient and selective adsorption of organic dyes.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2023)
Article
Chemistry, Physical
Badr M. Thamer, Meera Moydeen Abdul Hameed, Hany S. Abdo, Mohamed H. El-Newehy
Summary: A highly efficient and non-precious electrocatalyst was developed using a facile and in situ two-step method. The electrocatalyst utilized nickel-copper alloy nanoparticles supported on porous carbon nanosheets. The electrocatalyst exhibited a favorable electrochemically active surface area and superior electrocatalytic performance for methanol oxidation, serving as an alternative to noble metal-based catalysts.
Article
Chemistry, Physical
El-Sayed M. Sherif, Yassir A. Bahri, Hamad F. Alharbi, Muhammad Farzik Ijaz
Summary: The effect of Sn concentration on the corrosion of three Ti-based alloys (Ti-Zr-Ta-4Sn, Ti-Zr-Ta-6Sn, and Ti-Zr-Ta-8Sn) was investigated using electrochemical measurements and surface analyses. It was found that the alloys showed improved corrosion resistance with increasing Sn content, as indicated by the passivation of the alloy surface and the reduction in corrosion. The addition of Sn significantly improved the alloys' polarization resistances and reduced both uniform and pitting corrosion.
Article
Multidisciplinary Sciences
Abdullah A. A. Alghannam, Mahmoud S. S. Soliman, Asiful H. H. Seikh, Ibrahim A. A. Alnaser, Ahmed Fouly, Jabair A. A. Mohammed, Sameh A. A. Ragab, Hany S. S. Abdo
Summary: Casting of aluminum with different concentrations of Mg, Mn alloying elements, similar to AA5083, along with 0.1%, 0.2%, and 0.3% Ti, was carried out using a graphite crucible. The resulting as-cast microstructure was modified by hot rolling into thin sheets, which were then subjected to mechanical and metallurgical characterization through various testing methods. The results showed that increasing Ti content led to grain refinement, increased formation of Al3Ti, and improved mechanical properties. However, corrosion resistance was reduced due to the grain refinement phenomena.
SCIENTIFIC REPORTS
(2023)
Article
Polymer Science
Thamer Albahkali, Hany S. Abdo, Omar Salah, Ahmed Fouly
Summary: An artificial intelligence model using ANFIS was developed to predict the wear volume of PLA composites under various conditions. Heat-treated PLA green composites showed improved tribological performance for biomedical applications.
Article
Polymer Science
Ubair Abdus Samad, Mohammad Asif Alam, Hany S. Abdo, Arafat Anis, Saeed M. Al-Zahrani
Summary: This research paper discusses the fabrication of epoxy coatings with a hybrid combination of SiO2 and ZrO2. The study investigates the adhesion, barrier, and anti-corrosion properties of these coatings enriched with silica and zirconium nanoparticles, and their impact on the final properties of the epoxy coating.
Article
Polymer Science
Ahmed Fouly, Thamer Albahkali, Hany S. Abdo, Omar Salah
Summary: This study introduces an artificial intelligence model that utilizes ANFIS to estimate the mechanical properties of 3D-printed PLA composites. The model shows good predictive capabilities for hardness, strength, and Young's modulus based on experimental data.
Article
Environmental Sciences
K. Vinutha, M. Sunitha, J. K. Madhukesh, Umair Khan, Aurang Zaib, El-Sayed M. Sherif, Ahmed M. Hassan, Ioan Pop
Summary: Studying waste discharge concentration in convergent/divergent channels is crucial for environmental applications. It helps determine the efficacy of treatment techniques and regulatory controls in lowering pollutant levels. This study focuses on the flow and heat transmission characteristics in ternary-based nanofluid systems with divergent and convergent channels. The results show that improving pollutant source variation can enhance concentration in divergent channels while reducing it in convergent channels. Adding nanoparticles increases surface drag force and improves heat management and circulation in nanofluid systems.
Article
Environmental Sciences
Javali Kotresh Madhukesh, Vinutha Kalleshachar, Chandan Kumar, Umair Khan, Kallur Venkat Nagaraja, Ioannis E. Sarris, El-Sayed M. Sherif, Ahmed M. Hassan, Jasgurpreet Singh Chohan
Summary: Wastewater discharge is crucial in environmental management and industries to conserve water resources and adhere to environmental standards. This study analyzes the impact of pollutant discharge concentration using non-Newtonian nanoliquids over a permeable surface with thermal radiation. Two types of nanoliquids, second-grade and Walter's liquid B, are considered. The governing equations are obtained using boundary layer techniques and reduced to ordinary differential equations using similarity variables. The solutions are obtained using numerical techniques and the effects of dimensionless constraints are illustrated graphically. A comparative analysis between the two nanoliquids is presented, showing that velocity profiles decrease with the porous factor and thermal and concentration profiles are affected by radiation and pollutant source variation. The study also analyzes important engineering factors. The findings will aid in decision-making and planning to reduce pollution and protect the environment.
Article
Polymer Science
Thamer Albahkali, Ahmed Fouly, Ibrahim A. Alnaser, Mahmoud B. Elsheniti, Ahmed Rezk, Hany S. Abdo
Summary: The aim of this study is to evaluate the impact of hybrid reinforcement using Al2O3 nanoparticles and graphite on the mechanical and tribological properties of epoxy nanocomposites. The results showed that the addition of hybrid additives significantly improved the elasticity, strength, toughness, ductility, and hardness of the material, while reducing the coefficient of friction and wear.
