Article
Chemistry, Physical
Ola N. Hussein, Selma M. H. AL-Jawad, Natheer J. Imran
Summary: CuS nanostructures with high surface areas were successfully synthesized via a hydrothermal method and characterized. These nanostructures exhibited excellent antibacterial activity.
Article
Materials Science, Characterization & Testing
Guangyu Zhang, Ran Cheng, Jiawei Yan, Yao Xiao, Chuanfeng Zang, Yu Zhang
Summary: Zinc oxide (ZnO) nanorods were successfully grown on the surface of polypropylene (PP) nonwoven fabric (NWF) using the low-temperature hydrothermal method, showing excellent UV protection and antibacterial activity. The ZnO nanorods effectively inhibit photodegradation and significantly enhance the strength properties of the PP NWF.
Article
Environmental Sciences
Giuseppe Vitiello, Giuseppina Iervolino, Claudio Imparato, Ilaria Rea, Fabio Borbone, Luca De Stefano, Antonio Aronne, Vincenzo Vaiano
Summary: Diclofenac is a common emerging contaminant that can be effectively removed from water through photocatalysis. Fluorine-doped ZnO shows good photocatalytic activity for the degradation of diclofenac, primarily due to its high efficiency in generating hydroxyl radicals.
SCIENCE OF THE TOTAL ENVIRONMENT
(2021)
Article
Chemistry, Physical
Rishabh Gandotra, Yu-Ren Chen, Thangapandian Murugesan, Ting-Wei Chang, Hwan-You Chang, Heh-Nan Lin
Summary: The study demonstrates the morphology dependent antibacterial activities of CuxO/ZnO nanocomposites towards Escherichia coli, with different CuxO nanostructures affecting the antibacterial efficiency. The excellent antibacterial performance is attributed to the combined effects of mechanical piercing of ZnO nanorods, release of Zn2+, Cu2+, and Cu+ ions, and effective generation of reactive oxygen species due to charge separation.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Chemistry, Physical
Le Minh Huong, Nguyen Thanh Hoai Nam, Nguyen Tien Dat, Nguyen Minh Dat, Che Quang Cong, Lam Thanh Ngan, Hoang Thuy Kim Ngan, Hoang An, Le Tan Tai, Phan Nguyen Phu Hung, Huynh Khanh Duy, Nguyen Cong Anh Minh, Nguyen Duy Hai, Ninh Thi Tinh, Lu Thi Mong Thy, Nguyen Huu Hieu
Summary: In this study, a CuO-decorated ZnO heterojunction nanocomposite was successfully synthesized using Muntingia calabura leaf extract as a green synthesis agent. The nanocomposite exhibited rice grain-shaped particles with dimensions of 100-250 nm in length and 50-100 nm in width. Antibacterial activity of the nanocomposite was significantly enhanced under illumination due to the generation of free radicals and release of Zn2+ and Cu2+ ions, leading to the destruction of cell membranes. Moreover, the nanocomposite showed light absorption in the visible spectrum and generated H2O2 at a concentration of 25 μM through an oxygen-aerated aqueous media generation experiment. These findings highlight the potential of green synthesized nanomaterials using biological plant extracts for antibacterial applications, as well as the possibility of producing heterostructures using plant extracts.
SURFACES AND INTERFACES
(2023)
Article
Chemistry, Multidisciplinary
Abbad Al Baroot, Muidh Alheshibri, Q. A. Drmosh, Sultan Akhtar, Essam Kotb, Khaled A. Elsayed
Summary: The study successfully fabricated ZnO/CuO heterostructure nanocomposites using pulsed laser ablation in liquid (PLAL) technique and characterized their structural and antibacterial properties. The results showed that the nanocomposites exhibited excellent antibacterial activity, especially against E. coli ATCC8739.
ARABIAN JOURNAL OF CHEMISTRY
(2022)
Article
Materials Science, Multidisciplinary
D. Akcan
Summary: ZnO and ZnCoO nanoparticles were synthesized by hydrothermal route using different Cobalt precursors and concentrations, with cobalt acetate tetrahydrate identified as the most suitable precursor. The effects of cobalt doping on the structure and properties of the nanoparticles were investigated, showing that cobalt doping significantly reduces the concentration of point defects in the nanoparticles.
MATERIALS RESEARCH BULLETIN
(2021)
Article
Engineering, Electrical & Electronic
Fawad Tariq, Rafaqat Hussain, Zobia Noreen, Aneela Javed, A. Shah, Arshad Mahmood, Muhammad Sajjad, Habib Bokhari, Shams Ur Rahman
Summary: Pure and S-doped TiO2 nanoparticles were synthesized using a facile hydrothermal technique. The sulfur doping was found to enhance the antibacterial activity of TiO2 against Gram negative bacteria. Analysis confirmed the crystallinity and chemical composition of the nanoparticles, showing that S-doping can decrease the bandgap energy of TiO2 lattice.
MATERIALS SCIENCE IN SEMICONDUCTOR PROCESSING
(2022)
Article
Chemistry, Physical
Yirui Lv, Xian Song, Ting Lei, Ping Yin
Summary: ZnO nanoparticles doped with Mn2+ and Cu2+ ions show promising antibacterial properties, especially against gram-positive bacteria. The composites of Mn and Cu-doped ZnO loaded on hydroxyapatite exhibit significant antibacterial activity and are noncytotoxic.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2022)
Article
Biochemistry & Molecular Biology
Nan-Fu Chen, Yu-Hsiang Liao, Pei-Ying Lin, Wu-Fu Chen, Zhi-Hong Wen, Shuchen Hsieh
Summary: In this study, CuO nanoparticles were synthesized via hydrothermal synthesis and then modified with different polymers to optimize bacteriostatic effects. Among them, PDA-modified CuO NPs showed excellent antibacterial activity with a bacteriostatic rate of 85.8%. Their superior performance can be attributed to their smaller size, surface charge, and favorable van der Waals interactions at pH 7.4, which increased their affinity for the lipopolysaccharide-containing outer membrane of E. coli.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2021)
Article
Chemistry, Physical
Haiyan Wu, Yuhang Meng, Menghan Yu, Huaming Yang
Summary: The overuse or abuse of antibacterial drugs has resulted in serious health issues. Among various antimicrobial materials, especially ZnO, inorganic antimicrobial materials have gained wide attention. However, agglomeration is an important factor that affects the function of nanoparticles and compromises the antibacterial properties of ZnO. This study utilizes talc as a substrate to control the size and dispersion of ZnO, creating composite minerals with excellent antibacterial properties against Escherichia coli and Staphylococcus aureus.
APPLIED CLAY SCIENCE
(2023)
Article
Materials Science, Ceramics
Gokhan Acikbas, Nurcan Calis Acikbas
Summary: The study found that both copper and copper oxide particles on ceramic surfaces exhibited similar antibacterial activity, which was mainly dependent on phase crystallization. The slightly higher amount of tenorite phase in copper-modified surfaces compared to copper oxide resulted in a slightly more pronounced bactericidal effect.
JOURNAL OF THE AMERICAN CERAMIC SOCIETY
(2022)
Article
Chemistry, Multidisciplinary
Muhammad Bin Ahmed, Tayyab Ali Khan, Ahmed Sher Awan, H. Waqas
Summary: Pure and cobalt-doped zinc oxide nanostructures were successfully synthesized using a two-step method. Cobalt doping enhanced the aspect ratio of nanorods and improved the anchoring of dye molecules, while reducing the band gap energy. This resulted in a three-fold increase in the photoconversion efficiency of dye-sensitized solar cells.
Article
Materials Science, Multidisciplinary
Xuebin Song, Liqin Xie, Ming Zhang, Wentao Wang, Lu Li, Xiaoyuan Lu, Peiyu Lei, Dan Liu, Yuming Chen, Hongli Chen, Changhong Zhao
Summary: This research demonstrates the synthesis of copper-decorated GO coatings and their significant antibacterial effect on Escherichia coli and Staphylococcus aureus. Additionally, the study shows good biocompatibility of the GO-Cu coatings, indicating their potential application in biomedical implants.
MATERIALS RESEARCH BULLETIN
(2021)
Article
Chemistry, Inorganic & Nuclear
P. Archana, B. Janarthanan, S. Bhuvana, P. Rajiv, S. Sharmila
Summary: The study demonstrates the preparation of zinc oxide nanoparticles using extract from Cucumis melo and characterizes its structural and functional properties through various analytical methods, while also testing its antibacterial and antioxidant capabilities, showing potential for future applications.
INORGANIC CHEMISTRY COMMUNICATIONS
(2022)
Article
Nanoscience & Nanotechnology
Yahaya Saadu Itas, Abdussalam Balarabe Suleiman, Chifu E. Ndikilar, Abdullahi Lawal, Razif Razali, Ismail Ibrahim Idowu, Mayeen Uddin Khandaker
Summary: Many experimental studies have been conducted on nano systems of magnesium oxide (MgO) due to high demand for smart materials in optoelectronic systems, however, the electronic and optical response of the nanotube form of MgO across chirality geometry and anisotropic directions has not been adequately investigated. Furthermore, previous studies did not take into account the chiral effects of MgO. This research fills this gap by investigating the structural electronic and optical properties of armchair single walled magnesium oxide nanotubes (SWMgONT) with varying inner diameters. The results show that (5, 5) SWMgONT is a promising candidate for solar cells, biomedical imaging, gas sensing, and optical communication.
PHYSICA E-LOW-DIMENSIONAL SYSTEMS & NANOSTRUCTURES
(2023)
Review
Chemistry, Analytical
Josiane F. da Silva, Clara M. G. Lima, Debora L. da Silva, Ivonea S. do Nascimento, Sarah de O. Rodrigues, Leticia A. Goncalves, Renata F. Santana, Waseem Khalid, Silvani Verruck, Talha Bin Emran, Irwin R. A. de Menezes, Henrique D. M. Coutinho, Mayeen U. Khandaker, Mohammad R. I. Faruque, Rafael da C. I. Fontan
Summary: Growing interest in medical, engineering, biochemical, and biological fields has led to continuous research and development of polymeric monolithic structures with densely interconnected pores for purifying bio compounds. Cryogels, generated by freezing a reactive polymerization mixture, offer versatility and cost-effectiveness as macroporous, polymeric, monolithic adsorbents. The conversion of cryogels into affinity adsorbents, particularly using epoxy radicals as supports, provides a promising alternative for biomolecule purification.
Article
Food Science & Technology
Mirza Sahria Kamal, Md Shakil, Tanjina Akter, Sabina Yasmin, Abu Saeid, Mayeen Uddin Khandaker
Summary: This study investigated the moisture sorption behavior and drying kinetics of local sweet potato sada (LSPS) variety slices. The results showed that slice thickness and drying temperature significantly affected the drying time and rate constant. The isotherm of LSPS slices exhibited a sigmoid shape, and the GAB model provided a better fit to the sorption data. The effective moisture diffusivity increased with increasing slice thickness and drying temperature, and the activation energy also increased with increasing slice thickness.
JOURNAL OF FOOD PROCESSING AND PRESERVATION
(2023)
Article
Chemistry, Multidisciplinary
Awais Khalid, Pervaiz Ahmad, Mayeen Uddin Khandaker, Yosra Modafer, Hanadi A. A. Almukhlifi, Abdulrahman S. S. Bazaid, Abdu Aldarhami, Abdulaziz M. M. Alanazi, Ohoud A. A. Jefri, Md. Mohi Uddin, Husam Qanash
Summary: The significance of nanostructures synthesized using green chemistry has recently attracted attention in various scientific domains. This article provides an overview of the biosynthesis of zinc oxide nanosheets using extract from the Phyllanthus emblica plant. The synthesized ZnO nanosheets were analyzed using XRD, XPS, SEM, and FTIR. The antibacterial activity of the biosynthesized ZnO nanosheets was evaluated, and they exhibited effective activity against both Gram-positive and Gram-negative bacterial strains. The ZnO nanosheets also showed promising photocatalytic activity for dye degradation.
JOURNAL OF CHEMISTRY
(2023)
Article
Crystallography
Raja Abdul Basit, Zeeshan Abbasi, Muhammad Hafeez, Pervaiz Ahmad, Jahanzeb Khan, Mayeen Uddin Khandaker, Kholoud Saad Al-Mugren, Awais Khalid
Summary: This study reports the successful synthesis of ZnO nanoparticles (NPs), CuO NPs, and ZnO/CuO nanocomposite using an eco-friendly method with Corriandrum sativum leaf extract as a capping agent. The synthesized materials were characterized using XRD, FTIR, UV-Vis, and SEM, and showed spherical morphology with average sizes of approximately 25 nm, 55 nm, and 11 nm, respectively. The synthesized nanomaterials were evaluated for photocatalytic activity, with the nanocomposite showing the highest photodegradation of methylene blue dye compared to the other materials. This work could provide a pathway for the decontamination of harmful dyes in wastewater from various industries.
Article
Chemistry, Analytical
Awais Khalid, Pervaiz Ahmad, Roomia Memon, Lamyaa F. Gado, Mayeen Uddin Khandaker, Hanadi A. Almukhlifi, Yosra Modafer, Najma Bashir, Otman Abida, Fahdah Ayed Alshammari, Abdelmajid Timoumi
Summary: Renewable energy can be obtained from wastewater by utilizing photocatalysis with Zinc oxide (ZnO), Copper-doped Zinc oxide (CuZnO), and Cobalt-doped Zinc oxide (CoZnO) nanostructures (NSs). The synthesized nanostructures showed good crystalline and structural stability, as confirmed by XRD and FESEM analysis. The highest photodegradation rate was observed on pH similar to 12 using ZnO, CoZnO, and CuZnO, and the photodegradation of methylene blue demonstrated the superior performance of ZnO, CuZnO, and CoZnO. Thus, CuZnO is recommended for industrial wastewater treatment like methylene blue.
Article
Engineering, Biomedical
Mehdi Hassanpour, Marzieh Hassanpour, Mohammadreza Rezaie, Saeedeh Khezripour, Mohammad Rashed Iqbal Faruque, Mayeen Uddin Khandaker
Summary: Neutrons can be generated in medical linear accelerators, posing a biological risk to patients and workers. Using graphene/hexagonal boron nitride (h-BN) metamaterial as a neutron shielding material can effectively reduce neutron transmission from the treatment room and improve photon spectrum quality.
PHYSICAL AND ENGINEERING SCIENCES IN MEDICINE
(2023)
Review
Food Science & Technology
Kaisun Nesa Lesa, Nazir Ahmad, Yunika Mayangsari, Mayeen Uddin Khandaker, Faruque Mohammad Rashed Iqbal, Dwi Larasatie Nur Fibri, Md Mehedi Hassan, Timothy Omara
Summary: This review summarizes the health benefits of okara, a soybean byproduct, for the management of diabetes. Okara is rich in dietary fiber, protein, and other nutrients, and can control diabetes by reducing body weight and delaying digestion and absorption of carbohydrates, thus increasing satiety and decreasing blood glucose levels.
JOURNAL OF FOOD QUALITY
(2023)
Article
Chemistry, Physical
Zuhal Y. Hamd, Huda I. Almohammed, Maha M. A. Lashin, Mohamed Yousef, Hanan Aljuaid, Sawsan M. Khawaji, Norah I. Alhussain, Alanoud H. Salami, Rand A. Alsowayan, Fatima A. Alshaik, Tahani K. Alshehri, Dalal M. Aldossari, Nouf F. Albogami, Mayeen Uddin Khandaker
Summary: The present study used an artificial intelligence-based fuzzy logic system to assess the knowledge level of radiation protection among individuals of Princess Nourah bint Abdulrahman University (PNU). The results showed that PNU individuals in the medical field have a reasonable awareness of radiation protection, while the general knowledge of non-medical individuals needs improvement. The study also suggests that the fuzzy model can be used in other institutions and areas to raise awareness of radiation protection.
RADIATION PHYSICS AND CHEMISTRY
(2023)
Article
Chemistry, Physical
Hauwau Kulu Shuaibu, Faizal Mohamed, Mayeen Uddin Khandaker, Aznan Fazli Ismail, Ratna Suffhiyanni Omar
Summary: This study quantifies naturally occurring and artificial radionuclides in 14 different medicinal plants in Malaysia for the first time using HPGe gamma-ray spectrometry, and compares the results with other worldwide data. The activity values are found to be lower than the international advisory limits, and the estimated annual effective dose and associated excess lifetime cancer risk values are also lower than the acceptable limits prescribed by the United Nations Scientific Committee on the Effects of Atomic Radiation. Therefore, consuming these evaluated herbal plants, which are considered radiologically safe for adult consumption, has no radiological impact.
RADIATION PHYSICS AND CHEMISTRY
(2023)
Article
Environmental Sciences
Mayeen U. Khandaker, Nurul S. B. Zayadi, Siti Fairus A. Sani, David A. Bradley, Hamid Osman, Yasser Alzamil, Meshari Almeshari, M. Sayyed, Abdelmoneim Sulieman
Summary: This study analyzes the radiological activity of Malaysian honey samples and finds that the associated radiation risk to public health is insignificant. However, the overall dietary exposure may exceed the guidance level, which requires attention.
RADIATION PROTECTION DOSIMETRY
(2023)
Article
Environmental Sciences
Aishath Nadhiya, Mayeen Khandaker, Sultan Mahmud, Wan Abdullah
Summary: This study determined the concentrations of heavy metals in Yellowfin and Skipjack tuna fishes from the Laccadive sea using ICP-OES. The results showed that the metal concentration in tuna fish was below the maximum tolerable limit set by international organizations. The dietary intake of fish from the Laccadive Sea had an insignificant health risk and low carcinogenic risk. Therefore, the consumption of tuna from the Laccadive Sea is safe for human health.
RADIATION PROTECTION DOSIMETRY
(2023)
Review
Chemistry, Multidisciplinary
Md. Mohi Uddin, Mohammad Humaun Kabir, Md. Ashraf Ali, Md. Mukter Hossain, Mayeen Uddin Khandaker, Sumit Mandal, A. Arifutzzaman, Debnarayan Jana
Summary: This review highlights recent progress in the research and application of 2D materials, including their synthesis, properties, and application-oriented characteristics. The applications of 2D materials in various fields are discussed, and the state-of-the-art applications, challenges, and outlook of each class of 2D material are presented as concluding remarks.
