Article
Chemistry, Multidisciplinary
Weilin Liu, Jiansan Li
Summary: The corrosion resistance of a coating applied on Q235 carbon steel in a chloride-rich environment was studied. The coating acts as a barrier, preventing the penetration of the corrosion medium and providing active corrosion protection. Halloysite nanotubes (HNTs) loaded with sodium lignosulfonate (SLS) under vacuum conditions showed high loading efficiency. The modified HNTs, characterized by SEM, TEM, FTIR, and zeta potential analyses, exhibited pH-responsive release and superior thermal stability. The epoxy coating modified with PSS/PDDA/SLS/HNTs demonstrated excellent corrosion resistance and hydrophobicity.
Article
Chemistry, Physical
Juan Liao, Hao Wang, Nian Liu, Huaming Yang
Summary: This review discusses the functionalized modifications and personalized bioapplications of halloysite nanotubes (HNTs), highlighting their roles in antibacterial, anti-inflammatory, wound healing, cancer theranostics, bone regenerative, and biosensing applications.
ADVANCES IN COLLOID AND INTERFACE SCIENCE
(2023)
Article
Polymer Science
Liuyue Zhong, Tingcheng Li, Junheng Zhang, Junsheng Wang, Daohong Zhang
Summary: In this study, hyperbranched phosphorus-containing polysiloxane functionalized halloysite nanotubes were synthesized for the preparation of epoxy composites with improved mechanical strength and flame retardancy, without sacrificing the glass transition temperature.
EUROPEAN POLYMER JOURNAL
(2022)
Article
Chemistry, Multidisciplinary
Khalida Fakhruddin, Rozita Hassan, Muhammad Umar Aslam Khan, Sabrina Naula Allisha, Saiful Izwan Abd Razak, Maen Hussni Zreaqat, Hadafi Fitri Mohd Latip, Mohd Najeb Jamaludin, Anwarul Hassan
Summary: Halloysite nanotubes (HNTs), as a natural material, have unique properties that make them ideal for biomedical applications, such as loading bioactive molecules and therapeutic agents. The review paper covers the characterizations, properties, and applications of HNTs-polymer nanocomposites in biomedical fields, providing an overview of their potential in personalized medicine and drug delivery methods for researchers developing novel biomaterials in biomedical engineering and health care.
ARABIAN JOURNAL OF CHEMISTRY
(2021)
Article
Chemistry, Physical
Chenyu Zhao, Yuan Hu, Weihong Guo
Summary: In this study, a new type of modified halloysite nano-filler (PDA@T-AHNT) was synthesized to improve the dispersion of halloysite nanotubes in waterborne epoxy resin. The pH-responsive release properties and corrosion resistance of the modified nanofillers were characterized. The results demonstrated the application potential of PDA@T-AHNT nano-filler in corrosion protection of steel, especially in metal corrosion protection under acidic environment.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2023)
Article
Polymer Science
Songshan Zeng, Zaili Hou, Chinting So, Heilong Wai, Dongwook Jang, Wingki Lai, Luyi Sun, Zhaoli Gao
Summary: Epoxy and its composites have been widely used in various applications, and the incorporation of nanofillers, such as halloysite nanotubes, has been shown to strengthen and toughen the epoxy. In this study, a method using urea molecules to enhance the interface between hydroxylated halloysite nanotubes (h-HNTs) and the epoxy matrix was introduced. The resulting epoxy/h-HNT-urea nanocomposites exhibited significant improvements in tensile strength, Young's modulus, and fracture toughness due to micro-cracking, nanotube bridging, and crack pinning.
Article
Chemistry, Physical
Maria Rita Caruso, Giuseppe Cavallaro, Stefana Milioto, Giuseppe Lazzara
Summary: In this study, a coating protocol using an aqueous dispersion containing Keratin (K) and Halloysite nanotubes (Hal) was investigated for wool thread. The surface characteristics of wool were analyzed using colorimetric analysis and optical microscopy, while the distribution of halloysite nanotubes in the wool fibers was examined using scanning electron microscope. The consolidation and protection effect of Hal/K mixtures on treated wool thread samples was evaluated through UV-irradiation and mechanical analysis. The results indicated that the proposed protocol has the potential to generate a reinforcing coating layer onto wool-based yarn and provide protection from UV exposure with minimal impact on the aesthetic aspects of the samples.
APPLIED CLAY SCIENCE
(2023)
Article
Engineering, Environmental
Xue-Lei Duan, Chun-Gang Yuan, Kai-Qang He, Jie-Xuan Yu, Yang-Hong Jiang, Qi Guo, Yan Li, Su-Juan Yu, Jing-Fu Liu
Summary: In this study, CuCl2-modified halloysite nanotubes (CuCl2-HNTs) were successfully prepared as an adsorbent for the removal of arsenic from high-temperature coal combustion flue gas. The CuCl2-HNTs showed high arsenic adsorption capacity and tolerance to high concentrations of gases. The captured arsenic could be stable at high temperatures.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2022)
Article
Polymer Science
Hao Jiang, Meng Cheng, Caijiao Ai, Fanjie Meng, Yizeng Mou, Shuangqing Sun, Chunling Li, Songqing Hu
Summary: The study developed imine-based epoxy composites enhanced by surface modified halloysite nanotubes with excellent self-healing efficiency and mechanical properties. Addition of 3 wt% of SiUr@HNTs improves self-healing performance and mechanical properties. The composites also exhibit good thermal stability and solvent resistance.
Article
Polymer Science
Sotirios Kopsidas, Ganiu B. Olowojoba
Summary: Epoxy polymers were modified with a hybrid nanofiller containing graphene nanoplatelets (GNPs) and carbon nanotubes (CNTs) at a mass ratio of 9:1, resulting in a significant increase in electrical conductivity and fracture energy. The reduced percolation threshold was attributed to CNTs, while the increased toughness was mainly due to GNPs through crack deflection. The toughening contribution of the hybrid nanofiller was accurately predicted using analytical modeling.
JOURNAL OF APPLIED POLYMER SCIENCE
(2021)
Article
Chemistry, Multidisciplinary
Ansaya Pumchan, Orrapa Cheycharoen, Sasimanas Unajak, Chaiya Prasittichai
Summary: The study investigated the use of halloysite nanotubes as a biologic nanocarrier, showing that modified HNTs are suitable for biologic delivery and leading to a significant boost in immune response in aquatic animals when biologics-loaded HNTs were administered.
NEW JOURNAL OF CHEMISTRY
(2021)
Article
Polymer Science
Sotirios Kopsidas, Ganiu B. Olowojoba, Chris Stone, David Clark, A. Manu Haddad, Anthony J. Kinloch, Ambrose C. Taylor
Summary: In this study, the electrical conductivity of carbon-fiber reinforced polymer (CFRP) composites was improved by adding graphene nanoplatelets (GNPs) and carbon nanotubes (CNTs). The modified CFRP laminates demonstrated superior electrical performance and resistance against lightning strike damage, while reducing weight by 20%.
JOURNAL OF APPLIED POLYMER SCIENCE
(2022)
Article
Chemistry, Physical
Yasser Zare, Kyong Yop Rhee
Summary: Limited equations for determining the mechanical performance of Halloysite nanotubes (Hal)/polymer samples ignore the reinforcing efficacy of the interphase zone. The Kolarik system and Pukanszky model are used to determine the tensile strength of Hal-reinforced nanocomposites, and developed models are validated with experimental data and parametric inspections. Interphase properties, Hal content, and interphase thickness directly influence the nanocomposite's strength.
APPLIED CLAY SCIENCE
(2021)
Article
Materials Science, Textiles
Marwa A. Abd El-baky, Mohamed A. Attia
Summary: This study investigated the effect of different weight percentages of halloysite nanotubes (HNTs) on the mechanical performance of glass laminate aluminum reinforced epoxy (GLARE). Results showed that the inclusion of 1 wt. % of HNTs led to maximum improvements in various mechanical properties. Adding 0.5 wt. % of HNTs to GLARE significantly enhanced the flexural modulus. However, using 3 wt. % of HNTs in GLARE led to a decrease in several mechanical properties but an increase in others.
JOURNAL OF INDUSTRIAL TEXTILES
(2022)
Article
Chemistry, Physical
Masoumeh Sadat Banijamali, Amir Masoud Arabi, Ali Jannesari, Pooria Pasbakhsh
Summary: This research evaluated a halloysite-based nitrogen-phosphorous fire retardant epoxy system. The study introduced synthesized melamine phosphate and pentaerythritol as an intumescent fire retardant and proposed the use of tubular high aspect ratio halloysite nanotube as a promising reinforcing nanoclay. The results showed that the synthesized fire retardant additives had excellent effects on the fire retardancy of epoxy resin and the strength of the residual char.
APPLIED CLAY SCIENCE
(2023)
Article
Materials Science, Multidisciplinary
Muhammad Ans, Javed Iqbal, Bertil Eliasson, Muhammad Jawwad Saif, Khurshid Ayub
COMPUTATIONAL MATERIALS SCIENCE
(2019)
Article
Crystallography
Rahila Huma, Tariq Mahmud, Nazeran Idrees, Muhammad Jawwad Saif, Rubina Munir, Nosheen Akbar
JOURNAL OF CHEMICAL CRYSTALLOGRAPHY
(2020)
Article
Environmental Sciences
Fazal-ur-Rehman, Shahid Adeel, Muhammad Jawwad Saif, Muhammad Kaleem Khosa, Muhammad Naveed Anjum, Muhammad Kamran, Muhammad Zuber, Muhammad Asif
POLISH JOURNAL OF ENVIRONMENTAL STUDIES
(2020)
Article
Chemistry, Analytical
Nazeran Idrees, Muhammad Jawwad Saif, Sumiya Nasir, Fozia Bashir Farooq, Asia Rauf, Fareeha Ashfaq
JOURNAL OF ANALYTICAL METHODS IN CHEMISTRY
(2020)
Article
Chemistry, Physical
Rida Fatima, Rao Aqil Shehzad, Alvina Rasool, Muhammad Yaseen, Saleem Iqbal, Muhammad Jawwad Saif, Javed Iqbal
Summary: A series of D-pi-A type molecules have been designed for potential use in organic photovoltaic devices. The newly designed molecules show a broad absorption range and lower bandgap compared to the reference molecule, indicating better electron density transfer capability. All designed molecules exhibit efficient charge transport capability, proving that end-capped acceptor modification is an effective strategy for designing high-performance organic solar cells in the future.
INTERNATIONAL JOURNAL OF QUANTUM CHEMISTRY
(2022)
Article
Polymer Science
Muhammad Jawwad Saif, Muhammad Naveed
Summary: The study focused on the dynamic mechanical performance and thermal behavior of epoxy composites reinforced with pristine halloysite nanotubes (HNTs). Various analyses, including DMA, FTIR, XRD, SEM, DSC, and TGA, were conducted to characterize the composites. Results showed that HNTs improved the viscoelastic behavior of the epoxy matrix at an optimized loading of 2%, with significant increases in storage modulus and loss modulus.
IRANIAN POLYMER JOURNAL
(2022)
Article
Materials Science, Multidisciplinary
Muhammad Imran, Muhammad Jawwad Saif, Tahir Farooq, Javed Iqbal
Summary: Thiols are effective capping agents for synthesizing semiconductor and metal nanoparticles, with aromatic thiols showing significant effects on the structural and electronic properties of small-sized CdTe quantum dots. TD-DFT calculations can be used to study the absorption spectra changes caused by different capping ligands.
FRONTIERS IN MATERIALS
(2021)
Article
Environmental Sciences
Abdur Rehman, Muhammad Irfan, Arruje Hameed, Muhammad Jawwad Saif, Muhammad Abdul Qayyum, Tahir Farooq
Summary: This study proposes a chemical-free and sustainable dyeing process for textiles using black tea extract. The cotton fabrics are cationized and dyed with black tea extract, without the use of hazardous organic solvents. The cationized cotton samples show enhanced color strength with an increase in the concentration of the cationizing agent. The dyeing process is eco-friendly and feasible on an industrial scale.
FRONTIERS IN ENVIRONMENTAL SCIENCE
(2022)
Article
Environmental Sciences
Shahid Adeel, Sehrish Ahmad, Noman Habib, Muhammad Jawwad Saif, Fatima Batool, Muhammad Aftab
Summary: The revival of eco-labelled products has led to the exploration of healthier means for the global community. Plant-based bio-pigments, particularly in the textile sector, are gaining popularity. This study focuses on the use of microwave irradiation techniques to extract colorants from Coral Jasmine flowers for dyeing wool. The research suggests that the isolation of colorants from new dye-yielding plants, the use of microwave heating as a clean technology, and medicinal-based bio-mordants can yield permanent color gamuts.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Article
Chemistry, Multidisciplinary
Xiujun Zhang, Muhammad Jawwad Saif, Nazeran Idrees, Salma Kanwal, Saima Parveen, Fatima Saeed
Summary: Schizophrenia is a chronic psychotic disorder characterized by cognitive deficits. There is a need for more efficient drugs with fewer adverse effects. Computational tools, such as machine learning algorithms and computer simulations, are being developed to predict drug efficacy, understand molecular mechanisms, and identify new drug targets for schizophrenia. Topological indices and quantitative structure-property relationship models are utilized to estimate drug properties. Statistical techniques are used to link these properties with connectivity indices.
Article
Pharmacology & Pharmacy
Muhammad Abid Zia, Muhammad Kaleem Khosa, Majid Muneer, Khalid Mahmood Zia, Muhammad Jawwad Saif
Summary: The PMMA/PVC/ZnO nanocomposites with zinc oxide nanoparticles were synthesized and characterized for their morphology and antimicrobial, antibiofilm, and antioxidant activities. The results showed that the nanocomposites exhibited promising antimicrobial and antioxidant capabilities, indicating their potential for biomedical applications.
PAKISTAN JOURNAL OF PHARMACEUTICAL SCIENCES
(2022)
Article
Chemistry, Multidisciplinary
Muhammad Shabbir Shakir, Muhammad Kaleem Khosa, Khalid Mahmood Zia, Muhammad Jawwad Saif, Tanveer Hussain Bokhari
Summary: New PVC/ABS and CoCl2 composites were synthesized using solution casting techniques, showing smooth distribution of constituents and improved mechanical properties. The addition of CoCl2 enhanced thermal stability due to crosslinking, making these composites promising for applications in biomedics and electronics.
JOURNAL OF THE SERBIAN CHEMICAL SOCIETY
(2021)
Article
Computer Science, Information Systems
Raghisa Khalid, Nazeran Idrees, Muhammad Jawwad Saif
CMC-COMPUTERS MATERIALS & CONTINUA
(2019)
Article
Physics, Atomic, Molecular & Chemical
Nazeran Idrees, Muhammad Jawwad Saif, Tehmina Anwar
Article
Chemistry, Multidisciplinary
Muhammad Imran, Muhammad Jawwad Saif, Aleksey E. Kuznetsov, Nazeran Idrees, Javed Iqbal, Asif Ali Tahir
Article
Chemistry, Physical
A. Khallouqi, A. Halimi, O. El Rhazouani
Summary: A pediatric head phantom made of epoxy resin was used to evaluate radiation exposure in CT scans. The phantom demonstrated dosimetric properties comparable to commercially available phantoms, making it a practical and economical option for assessing radiation dose in children.
RADIATION PHYSICS AND CHEMISTRY
(2024)
Article
Chemistry, Physical
M. Y. Shoeib, Doaa A. Ahmed, A. F. Abd-Elraheem
Summary: The research aims to measure and analyze the levels of radon concentration, radium concentration, and radon exhalation rates in geopolymer cement mixes, and assess their impact on indoor air quality. Results indicate that geopolymer cement materials are safe for use in construction, except for specific mixes.
RADIATION PHYSICS AND CHEMISTRY
(2024)
Article
Chemistry, Physical
M. J. Leotlela
Summary: This article presents the results of radiochemical events/processes that occur when water is exposed to ionising radiation of charged particles (beta and alpha-particles). The idea of cogeneration becomes even more lucrative if we consider that hydrogen energy generation is clean (also known as green energy) because of its insignificant contribution to environmental pollution. These results supplement the fluctuation in effective dose theory/hypothesis of a previous study on time-dependent variations in the radiological health impact of an interim SNFS facility presented in 2021 (Leotlela, 2021).
RADIATION PHYSICS AND CHEMISTRY
(2024)
Article
Chemistry, Physical
Vyacheslav Ivanovich Pavlenko, Roman Vladimirovich Sidelnikov, Vitaly Valerievich Kashibadze, Mikhail Igorevich Dobynde, Dmitry Alexandrovich Kartashov, Vyacheslav Alexandrovich Shurshakov
Summary: This work explores the possibility of using a polymer composite to protect against neutron radiation in space conditions. The study shows that the proposed polymer composite has high structural properties necessary for use in space. Monte Carlo simulation is used to evaluate the neutron radiation passage through the material. The results demonstrate that the protective layer made of the polymer composite is thinner and more suitable for spacecraft, which is crucial due to limited space on board.
RADIATION PHYSICS AND CHEMISTRY
(2024)
Article
Chemistry, Physical
Islam G. Alhindawy, M. I. Sayyed, Dalal Abdullah Aloraini, Aljawhara H. Almuqrin, Mohammad S. Alomar, Gaber A. Elawadi, K. A. Mahmoud
Summary: This study investigated the effects of Neodymium (III) nitrate hexahydrate and lanthanum nitrate hexahydrate on the structural and radiation shielding properties of zircon mineral, and a new La/Nb-doped ZrO2 nanocomposite was fabricated. Experimental techniques such as energy-dispersive X-ray, scanning electron microscope, transmission electron microscopy, and X-ray diffraction pattern were used to analyze the structure and composition of the fabricated nanocomposites. Monte Carlo simulation was employed to evaluate the gamma-ray shielding properties. The results showed that the fabricated composites had good shielding characteristics, with a shielding capacity of 30-50% compared to pure lead in the intermediate energy range of 0.244-2.506 MeV.
RADIATION PHYSICS AND CHEMISTRY
(2024)
Article
Chemistry, Physical
Hassan Salah, Mohammed Alkhorayef, Layal Jambi, Mohammed Almuwanis, Abdelmoneim Sulieman
Summary: Cardiovascular nuclear medicine imaging examinations expose patients to high doses of ionizing radiation. This study assessed the radiation doses and public exposure in cardiac rest and stress SPECT scans. The effective dose from cardiac stress was higher than previous studies, which may be influenced by clinical indication imaging protocols and radiation safety measures.
RADIATION PHYSICS AND CHEMISTRY
(2024)
Article
Chemistry, Physical
Leandro Barbosa da Silveira Gatto, Delson Braz, Leonardo Pacifico, Paulo Travassos, Luis Alexandre Goncalves Magalhaes
Summary: This study evaluated the mean glandular dose (MGD) in mammography using a computed radiography (CR) system with a solid-state detector. Irradiations and simulations were conducted to determine the MGD and spectra for the same conditions. The results showed that the glandular dose was below the acceptable levels and the spectra were mostly in accordance with the literature.
RADIATION PHYSICS AND CHEMISTRY
(2024)
Article
Chemistry, Physical
Mawya Khafaji, Rashid Barnawi, Salma Amoudi, Hassan Gabbani, Rayan Alhazmi, Rayan Ahyad, Khalid Alsafi, Khuld Saeedi, Hassan Salah, Nissren Tamam, David Bradley, Sarah Albahiti, Abdelmoneim Sulieman
Summary: This study aimed to calculate typical values for common pediatric studies at King Abdulaziz University Hospital and compare them with other studies. The results showed that radiation dose levels in pediatric CT examinations were generally lower compared to other studies.
RADIATION PHYSICS AND CHEMISTRY
(2024)
Article
Chemistry, Physical
Faisal Almisned, Iskender Akkurt, Nurdan Karpuz
Summary: In this study, cross sections of medical radioisotopes were calculated using level density models. The results were compared with experimental data and it was found that the GSM level density models generally yielded consistent conclusions.
RADIATION PHYSICS AND CHEMISTRY
(2024)
Article
Chemistry, Physical
Shokufeh Saeid, Neda Mollakhalili-meybodi, Fateme Akrami Mohajeri, Farzan Madadizadeh, Elham Khalili Sadrabad
Summary: This study found that gamma irradiation significantly reduces the saponin and phytic acid content of quinoa. At a dose of 2.5 kGy, it can effectively reduce saponin and phytic acid without significantly damaging the antioxidant compounds.
RADIATION PHYSICS AND CHEMISTRY
(2024)
Article
Chemistry, Physical
Maria Demeter, Ion Calina, Anca Scarisoreanu, Valentina Mitran, Marcela Popa, Anisoara Cimpean, Mariana Carmen Chifiriuc, Marin Micutz, Elena Matei, Bogdana Mitu
Summary: Novel biocompatible composite hydrogels with good elastic and antimicrobial properties were synthesized by e-beam cross-linking using chitosan, water-soluble polymers, and silver nanoparticles (AgNP). The composite hydrogels showed high stability, absorption capability specific to infected wounds, and biocompatibility. The antimicrobial activity was influenced by the amount of AgNP and cross-linking degree, with significant inhibition against Gram-negative bacteria.
RADIATION PHYSICS AND CHEMISTRY
(2024)
Article
Chemistry, Physical
Anuor AT. Ayoub, Yushou Song, Mamoun IA. Sagiroun
Summary: This paper presents an assessment of the radiological hazard for humans from nuclear power plant effluent released into a river under normal operation scenarios. The study concludes that the radiological hazard from this effluent is minimal and within acceptable limits according to international standards. It also highlights the potential hazards related to the higher concentration of 137Cs in sediments over time.
RADIATION PHYSICS AND CHEMISTRY
(2024)
Article
Chemistry, Physical
Irabati Chakraborty, Nidhi Sinha, Bobby Antony
Summary: This article investigates the electron impact ionization of prebiotic molecules within the interstellar medium. By calculating the electron impact ionization cross section, the study provides insights into the chemistry of these molecules and their interaction with electrons, which play a vital role in the emergence of life's essential building blocks.
RADIATION PHYSICS AND CHEMISTRY
(2024)
Article
Chemistry, Physical
C. V. Vishnu, Antony Joseph
Summary: This study investigated the gamma-ray shielding properties of composite materials made from natural rubber with different proportions of Barium Tungstate. The addition of Barium Tungstate significantly improved the characteristics of gamma radiation shielding. The experimental measurements showed good agreement with theoretical calculations obtained from simulation results.
RADIATION PHYSICS AND CHEMISTRY
(2024)
Article
Chemistry, Physical
Derya Mutlu, Idris Karagoz, Harun Sepetcioglu, Urkiye Akar Tarim, Orhan Gurler
Summary: This study examined the properties of epoxy composites with dendritic copper particles and found that the addition of copper particles improved the electrical conductivity and mechanical properties of the composites. The glass transition temperature of the composites could be adjusted by varying the copper particle ratio. The study also evaluated the shielding properties of epoxy-based composites against gamma radiation and found that the addition of copper particles significantly altered the microstructure and mechanical properties of the composites.
RADIATION PHYSICS AND CHEMISTRY
(2024)
