Article
Materials Science, Multidisciplinary
Quoc Bao Vo-Van, Anh Quang Dao, Van-Phuong Nguyen, Nguyen Duc Danh, Thanh Hai Duong, Le Thi Kim Anh
Summary: This study synthesized CurAgNPs using nanocurcumin and investigated their stability after 12 months of storage, as well as their antimicrobial activity against four bacteria causing mastitis. The UV-vis spectroscopy and TEM analysis showed the characteristics of CurAgNPs. The CurAgNPs exhibited significant antimicrobial activity and the formulated gel containing CurAgNPs demonstrated improved efficacy.
MATERIALS RESEARCH EXPRESS
(2023)
Article
Engineering, Environmental
Sheng-qi Rao, Ru-yi Zhang, Rui Chen, Ya-jun Gao, Lu Gao, Zhen-quan Yang
Summary: A new hybrid antibacterial agent (SLP-AgNPs) was prepared by using silver nanoparticles and Lactobacillus buchneri-isolated surface-layer proteins, showing significantly enhanced antibacterial activity. The synergistic antibacterial mechanism of SLP-AgNPs may be achieved through the enhanced adhesion to bacteria, antibacterial ability of SLP, and sustained release of silver ions.
JOURNAL OF HAZARDOUS MATERIALS
(2022)
Article
Infectious Diseases
Chengang Ni, Yuening Zhong, Weixi Wu, Yaping Song, Pooyan Makvandi, Chengzhong Yu, Hao Song
Summary: This study successfully combined vancomycin and nano-Ag onto pollen-like silica nanoparticles to enhance bacterial killing. The silver nanoparticles were observed to be well-distributed on the surface of silica nanoparticles, with a unique spiky morphology promoting adhesion to bacterial surfaces for localized drug release to kill bacteria.
Article
Chemistry, Physical
Yufeng Li, Yangyang Yan, Jie Wang, Lidong Li, Fu Tang
Summary: In this study, rod-like silver nanoparticles were successfully prepared in mesoporous silica nanoparticles by a simple method, with tunable optical properties. The resulting gelatin-mixed hydrogel exhibited efficient antibacterial properties due to excellent photothermal performance.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2022)
Article
Biochemistry & Molecular Biology
Piersandro Pallavicini, Luca Preti, Maria L. Protopapa, Daniela Carbone, Laura Capodieci, Yuri A. Diaz Fernandez, Chiara Milanese, Angelo Taglietti, Lavinia Doveri
Summary: A synthetic approach was developed to prepare silica gel monoliths embedded with well separated silver or gold spherical nanoparticles with different diameters. The oxidation and removal of silver nanoparticles from silica was achieved using Fe3+, O-2/cysteine, and HNO3, while aqua regia was necessary for gold nanoparticles. NP-imprinted silica powders were obtained by grinding the monoliths, which showed efficient reuptake of silver ultrafine nanoparticles and remarkable size selectivity based on the match between nanoparticle radius and cavity curvature. The materials and methods described in this paper may provide an efficient solution for capturing and safely disposing of silver ultrafine nanoparticles from environmental waters.
Article
Polymer Science
Mina Ahsani, Reza Sabouri, Mathias Ulbricht, Hossein Hazrati, Abbas Jafarizad, Reza Yegani
Summary: The hydrophilic and antibacterial Ag-SiO2-PVP nanoparticles were successfully synthesized through multiple steps. The vinyl groups and PVP brushes were successfully generated onto the silica nanoparticles using silanization and grafting-through polymerization methods. The Ag-SiO2-PVP nanoparticles showed outstanding bactericidal properties when assessed using the plate colony counting method.
JOURNAL OF APPLIED POLYMER SCIENCE
(2021)
Article
Materials Science, Coatings & Films
Jianwei Hou, Haizhou Zhao, Zhiming Zhang, Liangmin Yu, Xuefeng Yan
Summary: Functional antifouling coatings are developing as a direction for marine antifouling coatings. In this study, tris-(8-hydroxyquinoline) aluminum modified with titanium dioxide (AlQ3:TiO2) coatings were prepared, which exhibited photocatalytic antibacterial and fluorescent algae inhibition under visible irradiation. The AlQ3:TiO2 coatings showed high antibacterial activity against E. coli with an inhibition efficiency of up to 97.51%. Additionally, the reactive oxygen species (ROS) and weak fluorescence generated under visible irradiation effectively inhibited the growth and settlement of algae. Based on comprehensive antifouling experiments and electrochemical characterization, a possible antifouling mechanism for AlQ3:TiO2 coatings is proposed.
SURFACE & COATINGS TECHNOLOGY
(2023)
Article
Polymer Science
Shaher Bano, Memoona Akhtar, Muhammad Yasir, Muhammad Salman Maqbool, Akbar Niaz, Abdul Wadood, Muhammad Atiq Ur Rehman
Summary: Silver and strontium doped mesoporous bioactive glass nanoparticles were synthesized and found to possess strong antibacterial properties and potential for promoting osteogenesis, making them suitable for applications in bone tissue engineering.
Article
Materials Science, Ceramics
J. Molina, A. Valero-Gomez, S. Pocovi-Martinez, M. S. Ibiza-Palacios, F. Bosch
Summary: A silica-based sol-gel antibacterial coating with silver nanoparticles has been prepared and compared with a hydroxyapatite-based coating. The silica-based coating showed better and more homogeneous distribution of Ag NPs and sustained release of Ag+ over 40 days, with excellent antibacterial activity.
JOURNAL OF SOL-GEL SCIENCE AND TECHNOLOGY
(2023)
Article
Chemistry, Multidisciplinary
Nadia Ribeiro, Ipek Bulut, Baris Sergi, Vivien Posa, Gabriella Spengler, Giuseppe Sciortino, Vania Andre, Liliana P. Ferreira, Tarita Biver, Valeria Ugone, Eugenio Garribba, Joao Costa-Pessoa, Eva A. Enyedy, Ceyda Acilan, Isabel Correia
Summary: This study reports the synthesis and characterization of a group of benzoylhydrazones and their Cu(II) complexes. The complexes exhibited moderate-to-strong interaction with bovine serum albumin and showed higher antiproliferative activity compared to the corresponding free ligand and cisplatin. Compound 8 demonstrated the most promising properties with low IC50 values, high induction of oxidative stress and DNA damage, resulting in high rates of apoptosis.
FRONTIERS IN CHEMISTRY
(2023)
Article
Materials Science, Paper & Wood
Zhanpeng Ye, Hui Rong, Shuangyang Li, Qing Ma, Shangliang Chen, Liandong Deng, Jianhua Zhang, Anjie Dong
Summary: This study successfully prepared multifunctional cotton fabrics containing silver-silica and fluorinated silica hybrid nanoparticles, which exhibited excellent antifouling properties and long-term antibacterial effects against Escherichia coli and Staphylococcus aureus. The fabrics showed stable hydrophobicity and antibacterial properties even after washing and abrasion, making them more reliable than commercial antibacterial gauze.
Article
Chemistry, Multidisciplinary
Romina Alarcon, Mariana Walter, Maritza Paez, Manuel Ignacio Azocar
Summary: In this study, the stability and antibacterial activity of silver nanoparticles (AgNPs) coated with different stabilizers were investigated. The AgNPs showed differences in stability and size change depending on the coating agent used. The stabilizer may function as a growth controller of the nanoparticles, affecting their biological properties. The protective or stabilizing agents also played a role in the antibacterial capacity and stability of AgNPs over time.
Article
Chemistry, Applied
Sutapa Joardar, Marisa L. Adams, Rima Biswas, Gauri V. Deodhar, Kara E. Metzger, Kendall Deweese, Malcolm Davidson, Ryan M. Richards, Brian G. Trewyn, Papu Biswas
Summary: The development of silver nanoparticle decorated mesoporous silica nanoparticles using a one-step process shows promising antibacterial activity against both Gram-negative E. coli and Gram-positive B. subtilis, with low minimum inhibitory concentrations and long-term effectiveness demonstrated in continuous re-culturing tests.These nanocomposites have great potential as antibacterial materials.
MICROPOROUS AND MESOPOROUS MATERIALS
(2021)
Article
Biochemistry & Molecular Biology
Simin Tian, Yunan Hu, Xiaoxue Chen, Chang Liu, Yansong Xue, Beizhong Han
Summary: This study focused on the ultrasonic-assisted green synthesis of stable and monodispersed silver nanoparticles with antibacterial and antibiofilm activities. The AgNPs showed significant inhibitory effects on Staphylococcus aureus and effectively suppressed biofilm formation. The development of AgNPs loaded TA/Na-Alg constructs presents a promising strategy for combating S. aureus contamination.
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2022)
Article
Environmental Sciences
Gandhali Bapat, Javed Mulla, Chaitali Labade, Onkar Ghuge, Vaijayanti Tamhane, Smita Zinjarde
Summary: In this study, HaGST-8 was successfully immobilized on glutaraldehyde-activated APTES functionalized silica nanoparticles to form SiAPT-HaGST-8 nano-conjugates, which showed higher specific activity compared to free HaGST-8. The pH range for activity of the nano-conjugates was extended from 8.0 to 9.0, while the free enzyme had a pH optimum of 9.0. Both forms of the enzyme had an optimum temperature of 30 degrees C, with improved stability for the nano-conjugates lasting 10 days longer than the free enzyme. These findings suggest the potential use of silica nanoparticle-based systems for stable enzyme conjugation and effective removal of pesticides from aqueous media.
ENVIRONMENTAL RESEARCH
(2022)
Article
Engineering, Environmental
Nurul Izzati Normi, Ahmed Saud Abdulhameed, R. Razuan, Emad Yousif, Zeid A. ALOthman, Lee D. Wilson, Ali H. Jawad
Summary: In this study, chitosan was functionalized with aromatic groups using a hydrothermal technique to create a highly efficient adsorbent CHI-BZA for removing acidic dyes. The characterization results confirmed the successful grafting of aromatic rings onto chitosan backbone, and CHI-BZA exhibited mesoporous and crystalline features. The adsorption capacity of CHI-BZA for RO16 dye was found to be 228.9 mg/g.
JOURNAL OF POLYMERS AND THE ENVIRONMENT
(2023)
Article
Environmental Sciences
Muhammad Shahid, Abdullah A. Al-Kahtani, Zeid A. ALOthman, Irshad Bibi, Tasveer Zahra Tariq, Natasha Natasha, Sana Khalid, Nabeel Khan Niazi, Behzad Murtaza
Summary: Untreated wastewater used in agriculture poses severe ecological risks due to various pollutants. This study examined the effects of mixing freshwater or groundwater with sewage water on soil and maize crop contamination. Results showed high levels of Cd and Cr in sewage water. Mixing freshwater or groundwater with sewage water increased soil content of As and decreased Cd, Cu, Fe, Mn, Ni, Pb, and Zn compared to sewage water alone. Maize accumulated PTEs in roots and shoots, with potential carcinogenic risks to livestock consuming contaminated fodder. Mixing water sources can be an effective strategy to minimize environmental/health hazards.
ENVIRONMENTAL MONITORING AND ASSESSMENT
(2023)
Review
Biochemistry & Molecular Biology
Mona M. Agwa, Heba Elmotasem, Hassan Elsayed, Abdallah S. Abdelsattar, Ahmed M. Omer, Doaa T. Gebreel, Mohamed S. Mohy-Eldin, Moustafa M. G. Fouda
Summary: Phototherapies, such as photothermal and photodynamic therapy, have been widely used for minimally invasive tumor eradication. However, obstacles in phototherapy have hindered its clinical application. To overcome these obstacles, researchers have developed nano-particulate delivery systems integrated with phototherapy and cytotoxic drugs, improving tumor targeting and minimizing toxicity to normal cells.
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2023)
Article
Green & Sustainable Science & Technology
Parminder Kaur, Moonis Ali Khan, Yongdan Li, Ahmed A. S. Al-Othman, Zeid Abdullah Alothman, Mika Sillanpaa, Ville Kuokkanen, Monzur A. Imteaz, Saleh Al-Farraj
Summary: The effectiveness of bifacial mixed metal-metal organic framework (MOF) anodes for municipal wastewater's photoelectro-catalytic (PEC) treatment is explored. The removal efficiency of pollutants from municipal wastewater and the impact of operational parameters are verified using TiO2-Bi(mixed metal)-MOF and TiO2-Sb(mixed metal)-MOF anodes in a visible light range. The study shows that TiO2-Bi(mixed metal)-MOF anodes in the PEC system play a positive role in removing micropollutants and disinfecting municipal wastewater, with high efficiency.
JOURNAL OF CLEANER PRODUCTION
(2023)
Article
Chemistry, Physical
Ahmed F. M. EL-Mahdy, Hossam A. E. Omr, Zeid A. ALOthman, Hyeonseok Lee
Summary: A new ethene-based covalent organic framework (COF) with high selectivity and efficiency for CO2 conversion into methane is reported. It exhibits promising values for CO2 conversion without any co-catalyst support and demonstrates long-term stability.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2023)
Article
Polymer Science
Inas A. A. Ahmed, Hala. S. Hussein, Zeid A. A. ALOthman, Abdullah G. G. ALanazi, Norah Salem Alsaiari, Awais Khalid
Summary: Fe-Cu supported on Alginate-limestone (Fe-Cu/Alg-LS) was synthesized to increase the surface area of ternary composites. The surface morphology, particle size, crystallinity, and elemental content of the composite were examined using SEM, EDX, and TEM. Fe-Cu/Alg-LS showed high adsorption efficiency for the removal of CIP and LEV from contaminated medium. The optimized conditions and kinetic and isotherm models were determined to understand the adsorption process.
Article
Multidisciplinary Sciences
Omar H. Abd-Elkader, Nasrallah M. Deraz, Lotfi Aleya
Summary: ZnxNi1-xFe2O4 (x = 0 and 0.3) nanoparticles were successfully synthesized using a glycine-mediated combustion route, and their properties were characterized using various methods. The substitution of Ni ions with Zn ions led to changes in lattice parameters, crystallite size, and band widths of the ferrites. The cation distribution and magnetic characteristics of the ferrites were also investigated, showing that Zn0.3Ni0.7Fe2O4 nanoparticles exhibited higher magnetization compared to NiFe2O4 nanoparticles. The anisotropy of the nickel ferrite increased with the substitution of Ni with Zn. TEM analysis revealed the formation of spinel nanocrystalline particles with low agglomerations.
Article
Crystallography
Nada S. Al-Kadhi, Ghadah M. Al-Senani, Rasmiah S. Almufarij, Omar H. Abd-Elkader, Nasrallah M. Deraz
Summary: This study aimed to develop a self-combustion method for preparing copper and cobalt ferrites using dry leaves of the Corchorus olitorius plant. The fabrication of CuFe2O4 and CoFe2O4 with spinel-type structures and the Fd3m space group was confirmed through XRD and FTIR investigations. The materials showed two stages of thermal behavior, with the first stage indicating the formation of reacting oxides and the second stage indicating ferrite growth. Surface morphological analysis displayed the formation of uniform and nanosized particles, with the samples containing CoFe2O4 showing superior surface properties compared to those without CuFe2O4. Magnetic characteristics evaluated using VSM showed that cobalt ferrites had higher magnetization, squareness, and coercivity compared to copper ferrites.
Article
Fisheries
Afaf N. Abdel N. Rahman, Sameh H. H. Ismail, Moustafa M. S. Fouda, Abdelwahab A. A. Abdelwarith, Elsayed M. M. Younis, Samah S. S. Khalil, Mahmoud M. M. El-Saber, Ahmed E. E. Abdelhamid, Simon J. J. Davies, Rowida E. E. Ibrahim
Summary: A new study investigated the synthesis of herbal plant extract using chitosan nanocapsule. The results showed that the chitosan white poplar nanocapsule had antibacterial activity against Streptococcus agalactiae. In addition, the study found that infection with S. agalactiae caused a significant increase in lipid peroxidation and hepatorenal biomarkers, as well as a decrease in antioxidants and immune indicators. Treatment with CWPNC alleviated these effects.
Review
Environmental Sciences
Abdallah A. Shaltout, Mohammad W. Kadi, Omar H. Abd-Elkader, Johan Boman
Summary: Air pollution caused by PM10 exceeding recommended limits is found in Jeddah city, Saudi Arabia. Differences in traffic, residential intensity, industrial, and non-road mobile machinery activities contribute to the variations in elemental concentrations at three different locations. Further evaluation is needed to understand the local influences and the health risks associated with high Cd concentrations.
ARCHIVES OF ENVIRONMENTAL CONTAMINATION AND TOXICOLOGY
(2023)
Article
Engineering, Chemical
Mohamed A. A. Habila, Zeid A. A. ALOthman, Hussam Musaad Hakami, Abdullah German Alanazi
Summary: Wastewater treatment for heavy metal removal can reduce environmental contamination and enhance sustainable practices. This study investigates the development of carbon nanotube/SDS-alumina nanocomposite-based adsorbents for efficient wastewater treatment under low temperature conditions. The heating condition was found to be the controlling factor for the formation of the porous structure of the nanocomposite, which affects its effectiveness in wastewater treatment.
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
(2023)
Article
Energy & Fuels
Mahmoud A. S. Sakr, W. Osman, Omar H. Abd-Elkader, Hazem Abdelsalam, Qinfang Zhang
Summary: In this study, the properties of finite single walled TiO2 nanotubes and the effects of doping with various atoms on their electronic and optical properties were investigated using density functional theory calculations. The study also explored the impact of doping on the UV-Vis absorption spectra of TiO2 nanotubes. Additionally, the adsorption properties of TiO2 nanotubes for H-2 molecules were studied, and it was found that doping with carbon or silicon atoms can significantly enhance the adsorption energy, making doped TiO2 nanotubes potential efficient hydrogen storage devices.
Article
Environmental Sciences
Ahmad Hapiz, Ali H. Jawad, Zeid A. Alothman, Lee D. Wilson
Summary: Pineapple crown (PC) feedstock residues were used for the production of activated carbon (PCAC) through pyrolysis and ZnCl2 activation. The PCAC showed a high surface area and mesoporous structure, and exhibited effective adsorption of cationic dye FB. The study provides insights into the utilization of PC biomass for wastewater remediation.
INTERNATIONAL JOURNAL OF PHYTOREMEDIATION
(2023)
Article
Chemistry, Multidisciplinary
Asma A. Alothman, Mohammad Rizwan Khan, Munirah D. Albaqami, Sonaimuthu Mohandoss, Zeid A. Alothman, Naushad Ahmad, Khadraa N. Alqahtani, Giorgio Vilardi, Linda J. Johnston
Summary: This study investigates the photodegradation of crystal-violet dye using a Ti3C2-MXene/NiO/CsPbI3 composite photocatalyst. The composite shows a significant improvement in the degradation rate and stability of the dye, as well as a reduced band gap. The results suggest the potential of MXene-based perovskite photocatalysts for environmental remediation.
Article
Crystallography
Ghadah M. Al-Senani, Foziah F. Al-Fawzan, Mashael Alshabanat, Omar H. Abd-Elkader, Mai Nasrallah, Mohamed Nasrallah
Summary: In this study, NiO/NiCo2O4 nanocomposites were successfully produced using an environmentally friendly method of egg white supplementation. Several analytical techniques were employed to characterize the morphology, purity, and crystal structure of the nanocomposites. The as-prepared composite particles exhibited uniform distribution and consisted of NiO and NiCo2O4 crystallites. The saturation magnetization and coercivity of the investigated composites were easily controllable, making them suitable for a wide range of applications.
Article
Engineering, Chemical
Xu Yang, Jieshi Xiao, Jian Huang, Kaixiang Peng
Summary: This study introduces an online convolutional adversarial autoencoder (AAE) model to learn representative industrial process information. By extracting features that reflect diverse information and follow a Gaussian distribution, the model improves the accuracy of fault detection and removes redundant information through a feature selection strategy.
JOURNAL OF THE TAIWAN INSTITUTE OF CHEMICAL ENGINEERS
(2024)
Article
Engineering, Chemical
Shao-Yang Wu, Meng-Tsun Lai, Chung-Hui Hsu, Kevin C. W. Wu, Yesong Gu
Summary: This study investigated the effectiveness of using Fe-based MOF or MIL-100(Fe) in conjunction with a PEDOT-modified Pt electrode for detecting the synthetic azo dye tartrazine. By modifying the electrode with two different methods, favorable lower reductive potentials, competitive sensitivities, and good repeatability and stability were achieved in all MIL-100(Fe)/PEDOT/Pt electrodes.
JOURNAL OF THE TAIWAN INSTITUTE OF CHEMICAL ENGINEERS
(2024)
