Article
Environmental Sciences
Pooja Rani, Rajender S. Varma, Karanpal Singh, Roberto Acevedo, Jagpreet Singh
Summary: A waste leaf extract can be used to generate cost-effective gold and gold-silver core-shell nanoparticles, which exhibit improved catalytic and antibacterial capabilities compared to single-metal nanoparticles. This method is effective in removing contaminants from water and countering antibiotic resistance, and it is cost-effective and sustainable.
Article
Chemistry, Multidisciplinary
Zhicheng Jiang, Jinjie Duan, Xingjie Guo, Ya Ma, Chunjiong Wang, Bi Shi
Summary: In this study, gold (Au) nanoparticles supported on lignin-tannin (LT) micro-/nanoparticles were prepared via a green and novel method without the use of an additional reducing agent. Increasing the proportion of tannins led to higher amounts of Au species on LT particles, but also decreased the thermal stability of the particles.
Article
Chemistry, Multidisciplinary
Cumali Keskin, Ali Olcekci, Ayse Baran, Mehmet Firat Baran, Aziz Eftekhari, Sabina Omarova, Rovshan Khalilov, Elvin Aliyev, Albert Sufianov, Aferin Beilerli, Ilgiz Gareev
Summary: The eco-friendly synthesis of metallic nanoparticles using biological materials is a promising and innovative approach to nanotechnology. In this study, silver nanoparticles were efficiently synthesized using the aqueous extract from the green leaves of the D. kaki L. The synthesized silver nanoparticles exhibited spherical appearance with an average size distribution of 27.12 nm, a maximum absorbance at 453.34 nm wavelengths, and a surface charge of -22.4mV.
FRONTIERS IN CHEMISTRY
(2023)
Article
Multidisciplinary Sciences
Muidh Alheshibri, Khaled A. Elsayed, Firdos Alam Khan, Shamsuddeen A. Haladu, Filiz Ercan, Emre Cevik, Q. A. Drmosh, T. S. Kayed, M. A. Almessiere
Summary: A nanocomposite of Au/ZnO was successfully fabricated using pulsed laser ablation technique, and its properties were characterized using various techniques. The nanomaterials showed strong inhibitory action against colorectal carcinoma and cervical cancer cells, with minimal influence on healthy cells. This study demonstrates the potential of laser ablation in the fabrication of highly pure nanomaterials with good efficacy against cancer cells.
ARABIAN JOURNAL FOR SCIENCE AND ENGINEERING
(2023)
Article
Chemistry, Multidisciplinary
Sumaira Anjum, Khadija Nawaz, Bushra Ahmad, Christophe Hano, Bilal Haider Abbasi
Summary: This research focuses on the fabrication of bimetallic nanoparticles using plant extracts, specifically Manilkara zapota leaf extract. The study shows that the leaf extract is capable of bioreducing metal ions to produce core-shell Au-Ag and hybrid Au-ZnO and Ag-ZnO nanoparticles. The phytochemical profiling and spectroscopic analysis confirm the involvement of certain phytochemicals in the synthesis process. The synthesized bimetallic nanoparticles exhibit enhanced therapeutic efficacy compared to their monometallic components and show potential for various applications, including antibacterial, anticancer, and anti-aging treatments. Moreover, the biocompatibility of these nanoparticles towards brine shrimp larvae and human red blood cells suggests their environmental and biological safety.
Article
Pharmacology & Pharmacy
Ahmed S. Doghish, Amr H. Hashem, Amr M. Shehabeldine, Al-Aliaa M. Sallam, Gharieb S. El-Sayyad, Salem S. Salem
Summary: In this study, a nanocomposite based on gold nanoparticles and carboxy methyl cellulose (CMC-AuNPs) was fabricated and exhibited antibacterial, antifungal, and anticancer activities.
JOURNAL OF DRUG DELIVERY SCIENCE AND TECHNOLOGY
(2022)
Article
Chemistry, Multidisciplinary
Tingyao Zhou, Xingyu Jiang
Summary: This study presents a facile strategy for preparing Au nanoassemblies with controllable structures and tunable luminescence using Pluronic F127 as an adaptive template. The hierarchical information encryption was achieved by modulating excitation light, providing a novel pathway for creating uniform nanomaterials with desired functions for potential applications in information security.
Article
Chemistry, Multidisciplinary
Volodymyr Dzhagan, Olga Kapush, Svitlana Plokhovska, Anastasiya Buziashvili, Yaroslav Pirko, Oleg Yeshchenko, Volodymyr Yukhymchuk, Alla Yemets, Dietrich R. T. Zahn
Summary: We have developed a new method for synthesizing plasmonic gold nanoparticles in a bio-compatible medium. The nanoparticles obtained are stable and exhibit a small size distribution. They can serve as SERS substrates and do not show significant antibacterial activity in bio-applications.
Article
Chemistry, Inorganic & Nuclear
A. Guleria, J. Aishwarya, A. Kunwar, S. Neogy, A. K. Debnath, M. C. Rath, S. Adhikari, A. K. Tyagi
Summary: In this study, a one-pot green approach utilizing solvated electrons was used to synthesize palladium nanoparticles coated with alpha-cyclodextrin. The formation of Pd NPs was confirmed by UV-Vis absorption spectra and cubic phase XRD pattern. The morphology of the nanoparticles varied depending on the dose rate, with sphere-shaped NPs formed at high dose rate and nanoflake self-assembled nanoflower-shaped NPs formed at low dose rate. Pulse radiolysis revealed the formation of Pd-based transients induced by solvated electrons. Furthermore, the morphology of the NPs affected their catalytic efficiency in reducing 4-nitrophenol to 4-aminophenol and their anticancer efficacy against lung and brain cancer cells. Flower-shaped Pd NPs exhibited higher cancer cell killing while being less toxic to normal lung fibroblasts. These findings highlight the potential of Pd NPs in anticancer treatment.
DALTON TRANSACTIONS
(2023)
Review
Pharmacology & Pharmacy
Ling Zhou, Huiguo Liu, Kui Liu, Shuang Wei
Summary: Gold compounds have shown promising results in cancer therapy by interacting with the immune system, inducing innate immune responses and promoting adaptive immune responses to support anti-tumor immune responses. Gold nanoparticles have the potential to improve the effectiveness of immunotherapy and reduce the toxicity and side effects of treatment processes.
FRONTIERS IN PHARMACOLOGY
(2021)
Article
Chemistry, Analytical
Abbad Al Baroot, Khaled A. Elsayed, Firdos Alam Khan, Shamsuddeen A. Haladu, Filiz Ercan, Emre Cevik, Q. A. Drmosh, M. A. Almessiere
Summary: Gold nanoparticles (AuNPs) and carbon nanotubes (CNTs) were fabricated using an eco-friendly technique (laser synthesis) and tested as potential cancer nanotherapeutics. The cell viability assay showed that both AuNPs and Au/CNTs exhibited significant reduction in cancer cell population, while CNTs had minimal effect. AuNPs and Au/CNTs also showed significant decrease in cell viability of normal cells, but CNTs did not. Laser synthesis as a simplified technique for producing nanomaterials showed good efficacy for future cancer therapy with minimal toxicity.
Article
Chemistry, Multidisciplinary
Raid D. Thanoon, Emam Atiyah Ibadi, Irfan Ahmad, Hassan Thoulfikar A. Alamir, Marim Alwan, Furqan S. Hashim, Donia Waleed Khaled, Adnan Taan Alkhafaji, Mohammed Asiri, Ali Alsaalamy
Summary: Various techniques including multispectral and molecular modeling were used to assess the biological potential of an Er complex containing a 2,2'-bipyridine ligand. The results showed that the compound has DNA-binding ability, strong affinity for BSA, antimicrobial effects, and anticancer properties. The compound primarily binds to DNA through groove binding and interacts with BSA via hydrogen bonds and van der Waals forces. The compound also demonstrated promising anticancer and antimicrobial activities.
FRONTIERS IN CHEMISTRY
(2023)
Article
Multidisciplinary Sciences
Nurul Syazwani Rohizat, Atiena Husna Abdullah Ripain, Chin Seong Lim, Chee Leong Tan, Rozalina Zakaria
Summary: The study demonstrates the significant enhancement of the photoresponse of photodetectors by combining hybrid plasmonic nanoparticles and graphene; high-performance photodetectors were successfully fabricated by integrating metallic nanoparticles with reduced graphene oxide; Au-rGO showed the highest responsivity and specific detectivity at 680nm wavelength, while Ag-rGO achieved the best performance at 785nm wavelength.
SCIENTIFIC REPORTS
(2021)
Article
Biotechnology & Applied Microbiology
Nouran Rezk, Abdallah S. Abdelsattar, Salsabil Makky, Assmaa H. Hussein, Azza G. Kamel, Ayman El-Shibiny
Summary: This study biosynthesized Au-Ag nanoparticles using propolis and examined their antibacterial activity against antibiotic-resistant bacteria as well as their anticancer activity. The results showed that these nanoparticles exhibited antibacterial activity against various bacteria and had a cytotoxic effect on HEPG2 cells.
Article
Chemistry, Multidisciplinary
Ahmad Junaid, Chew Hee Ng, Ing Hong Ooi
Summary: This study synthesized and characterized a nanogold-{[(Cu)(phen)(cys)(H2O)]NO3}n conjugate, and evaluated its antiproliferative property against breast cancer cells. The results showed that the nanogold-copper complex conjugate demonstrated selective anticancer activity, highlighting its potential as an anticancer agent.
Article
Energy & Fuels
Kannan Gothandapani, Andrews Nirmala Grace, Velmurugan Venugopal
Summary: The study focuses on MOF-derived catalyst for hydrogen evolution reaction, specifically looking at the high activity of Co3O4/C in basic medium and its ability to follow the Volmer-Heyrovsky mechanism as a rate limiting step.
INTERNATIONAL JOURNAL OF ENERGY RESEARCH
(2022)
Article
Multidisciplinary Sciences
Aparna Sajeev, Aleena Mary Paul, Ravi Nivetha, Kannan Gothandapani, Tamil Selvi Gopal, George Jacob, Muthumareeswaran Muthuramamoorty, Saravanan Pandiaraj, Abdullah Alodhayb, Soo Young Kim, Quyet Van Le, Pau Loke Show, Soon Kwan Jeong, Andrews Nirmala Grace
Summary: Cu3N catalyst synthesized by nitridation of Cu2O shows excellent electrocatalytic performance in alkaline medium with low overpotential and moderate Tafel slope. The reaction kinetics is governed by Volmer-Heyrovsky mechanism.
SCIENTIFIC REPORTS
(2022)
Article
Chemistry, Multidisciplinary
Subashini Gnanasekar, Andrews Nirmala Grace
Summary: The use of vanadium pentoxide as a cost-effective counter electrode in dye-sensitized solar cells has shown good electrocatalytic activity with enhanced charge transfer kinetics, leading to a significant improvement in the overall performance compared to conventional Pt electrodes. Further research on nanostructures of V2O5 is encouraged for large-scale production as an alternative to Pt electrodes.
Article
Chemistry, Physical
Daniel Maldonado-Lopez, Jassiel R. Rodriguez, Vilas G. Pol, Ravuri Syamsai, Nirmala Grace Andrews, S. J. Gutierrez-Ojeda, Rodrigo Ponce-Perez, Ma Guadalupe Moreno-Armenta, Jonathan Guerrero-Sanchez
Summary: By calculations and experiments, we investigated the lithiation process in Ti4C3 and Ti2Ta2C3 MXenes. The Ti2Ta2C3 MXene showed higher stability and storage capacity, making it suitable for energy storage applications.
ACS APPLIED ENERGY MATERIALS
(2022)
Review
Chemistry, Inorganic & Nuclear
Citlaly Gutierrez Rodelo, Rafael A. Salinas, Erika Armenta Jaime, Silvia Armenta, Andres Galdamez-Martinez, Silvia E. Castillo-Blum, Horacio Astudillo-de La Vega, Andrews Nirmala Grace, Carlos A. Aguilar-Salinas, Juliana Gutierrez Rodelo, Graham Christie, Walaa F. Alsanie, Guillermo Santana, Vijay Kumar Thakur, Ateet Dutt
Summary: This review discusses the potential and importance of nanotechnology in combating respiratory virus pandemics, focusing on the role of Zn-based nanostructures in virus detection, antiviral mechanisms, immune modulation, and clinical applications.
COORDINATION CHEMISTRY REVIEWS
(2022)
Article
Chemistry, Physical
Narongkorn Krajangsawasdi, Ian Hamerton, Benjamin K. S. Woods, Dmitry S. Ivanov, Marco L. Longana
Summary: This paper explores the use of a novel discontinuous fibre reinforced thermoplastic filament called Discontinuous Aligned Fibre Filament (DcAFF) for 3D printing to produce complex structural parts. The study reshapes initial carbon fibre-poly(lactic acid) (PLA) tape into a circular filament, DcAFF, using a scalable machine designed for high production rates. The filaments are then printed using a general-purpose 3D printer. Tensile and open-hole tensile tests show that the DcAFF specimens have superior mechanical properties compared to other PLA-based 3D printed composites. The failure mechanism of the composite transitions from brittle to ductile through the printing path raster.
Article
Chemistry, Physical
Sofia Jeniffer Rajasekaran, Andrews Nirmala Grace, George Jacob, Abdullah Alodhayb, Saravanan Pandiaraj, Vimala Raghavan
Summary: This study focuses on the synthesis of biomass derived activated carbon and its electrochemical behavior in different electrolytes. The specific capacitance, energy density, and power density of the synthesized activated carbon material were characterized in various aqueous electrolytes. The results showed that the RCS-AC material exhibited excellent electrochemical performance in 3 M KOH, with a specific capacitance of 137 F g(-1), energy density of 18.2 W hkg(-1), and power density of 663.4 W kg(-1). The stability of the capacitance in 3 M KOH was maintained at 97.2% after 5000 continuous charge and discharge cycles, indicating long-term stability. The study concluded that the synthesized RCS-derived activated carbon has promising commercial applications in energy storage.
Article
Chemistry, Physical
Narongkorn Krajangsawasdi, Duc H. Nguyen, Ian Hamerton, Benjamin K. S. Woods, Dmitry S. Ivanov, Marco L. Longana
Summary: DcAFF is a novel fused filament fabrication (FFF) 3D printing material made of highly aligned discontinuous fibres. This study investigates the challenges in printing accuracy for DcAFF and examines techniques for improving it. By adjusting machine parameters and introducing a compensation algorithm, the printing precision can be improved for complex geometries.
Article
Nanoscience & Nanotechnology
Ravuri Syamsai, Andrews Nirmala Grace, Ganesan Anandha Babu, Kamala Bharathi Karuppanan, Senthil Kumar Eswaran, Mani Navaneethan
Summary: Double-ordered titanium tantalum carbide MXene nanosheets were successfully synthesized with a hexagonal crystal structure and 2D layered morphology. HF etching effectively removed the intermediate aluminum layers. The synthesized MXenes demonstrated improved thermal stability and high electrical conductivity, with a decrease in thermal diffusivity with temperature. The electrochemical properties showed that the double-ordered MXene nanosheets had a specific capacitance of around 200 F/g, with a capacitance retention of 80% over 30 days in 1 M H2SO4.
ACS APPLIED NANO MATERIALS
(2023)
Article
Materials Science, Multidisciplinary
Anuradha Kamble, Suihua He, Jonathan R. Howse, Carwyn Ward, Ian Hamerton
Summary: For the first time, convolutional neural networks (CNN) were used to identify phase-separated microstructures in a novel nano-modified polymer composite. The CNN model achieved an accuracy of 65.4% and a 0.5 F1 score using an initial dataset, which was further improved to 80.1% accuracy and a 0.9 F1 score with additional experiments. The trained CNN model significantly reduced the time and cost required for manual screening and characterization.
COMPUTATIONAL MATERIALS SCIENCE
(2023)
Article
Materials Science, Multidisciplinary
Dominic R. Palubiski, Marco L. Longana, Janice M. Dulieu-Barton, Ian Hamerton, Dmitry S. Ivanov
Summary: This study proposes a repair methodology for interlaminar failure in composites using repairable vitrimer resin. By incorporating a vitrimer matrix into the damaged-prone region during manufacturing and utilizing vacuum pressure and heating, interlaminar failure can be repaired without introducing additional damage. The feasibility of incorporating reparable regions at the manufacturing stage has been successfully demonstrated, achieving higher performance than traditional repair methods.
MATERIALS & DESIGN
(2023)
Article
Polymer Science
J. F. Gargiuli, G. Quino, R. Board, J. C. Griffith, M. S. P. Shaffer, R. S. Trask, I. Hamerton
Summary: Four commercial high-performance aerospace aromatic epoxy matrices were evaluated in terms of their mechanical and thermal properties. The results showed that the thermoplastic toughened formulation exhibited improved overall stress values, while the particle-toughened sample displayed decreased stress values past the yield point. The resin with combined toughening agents performed similarly to the baseline material. Additionally, the dilation angles during plastic deformation were close to 0 degrees. The compressive modulus of the fully formulated resins was higher than that of the model resins, although it came at the expense of yield stress.
Article
Nanoscience & Nanotechnology
Nadyah Alanazi, Tamil Selvi Gopal, Muthumareeswaran Muthuramamoorthy, Amani Ali E. Alobaidi, Reem Abdullah Alsaigh, Mohammed Hamad Aldosary, Saravanan Pandiaraj, Maram Almutairi, Andrews Nirmala Grace, Abdullah Alodhayb
Summary: Fine-tuning the morphology of nanostructures from 2D to 3D through structural engineering improves biosensing. In this study, a 3D ternary composite (MXene graphene aerogel-Cu2O composite) was synthesized by hydrothermal process and coprecipitation method. The composite exhibited a low crystallite size, spherical-shaped Cu2O, and a large surface area with a porous structure. A sensing electrode was fabricated and showed high sensitivities, wide linear ranges, low detection limit, and good stability, selectivity, and reproducibility. The 3D network of MXene and rGO nanosheets enhances charge transfer and promotes the sensing activity of nonenzymatic glucose sensors.
ACS APPLIED NANO MATERIALS
(2023)
Article
Materials Science, Multidisciplinary
Yue Tang, Henry E. Symons, Pierangelo Gobbo, Jeroen Sebastiaan Van Duijneveldt, Ian Hamerton, Sebastien Rochat
Summary: A benzoxazine system combining liquid cardanol-based benzoxazine and an effective initiator with bisphenol A-based benzoxazine has been proposed. The mixture shows excellent fluidity and a relatively low peak polymerization temperature, and the cured polybenzoxazine exhibits high thermal decomposition temperature, moderate glass transition temperature, and robust mechanical strength comparable to the homopolymer obtained from curing bisphenol A-based benzoxazine.
ACS APPLIED POLYMER MATERIALS
(2023)
Review
Chemistry, Physical
Sandhya Venkateshalu, Mohammed Shariq, Nitin K. Chaudhari, Kwangyeol Lee, Andrews Nirmala Grace
Summary: This review provides a comprehensive overview of the synthesis, properties, and applications of non-carbide MXenes. The difference between carbide and non-carbide MXenes is emphasized to enhance understanding. The challenges and limitations of non-carbide MXenes are briefly discussed, along with possible ways to overcome them. Future research directions and opportunities are also highlighted to encourage further investigation of non-carbide MXenes.
JOURNAL OF MATERIALS CHEMISTRY A
(2022)
