Article
Physics, Applied
Fnu Gorky, Shelby R. Guthrie, Courtney S. Smoljan, James M. Crawford, Moises A. Carreon, Maria L. Carreon
Summary: The mesoporous SBA-15 silica material demonstrated significantly higher efficiency in synthesizing ammonia through atmospheric dielectric barrier discharge plasma, mainly due to its hierarchically ordered pore structure that facilitates the diffusion of plasma discharge into the pores.
JOURNAL OF PHYSICS D-APPLIED PHYSICS
(2021)
Article
Chemistry, Multidisciplinary
Florent Dubray, Vladimir Paunovic, Marco Ranocchiari, Jeroen A. van Bokhoven
Summary: This study investigates the oligomerization of pentene and hexene mixtures using an acidic mesoporous Al-SBA-15 catalyst. The results show that the catalyst exhibits high selectivity to jet-fuel range products (>98%) at low-to-moderate conversions (<50%). Higher conversions result in lower selectivities. It is also found that adjusting the conversion is the primary way to control the selectivity of the catalyst.
JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY
(2022)
Article
Chemistry, Physical
Andrea Huerta, Maria Jose Torralvo, Maria Jose Tenorio, Eduardo Perez, Jonathan Bermudez, Lourdes Calvo, Albertina Cabanas
Summary: In this study, Au/SiO2 SBA-15 materials were prepared using supercritical CO2 and wet impregnation methods. The materials prepared on the highest thiol grafting density support showed a homogeneous distribution of small-sized Au nanoparticles, while the materials prepared on the low thiol grafting density support showed a bimodal particle size distribution.
JOURNAL OF SUPERCRITICAL FLUIDS
(2022)
Article
Chemistry, Applied
Christopher M. A. Parlett, Hamidreza Arandiyan, Lee J. Durndell, Mark A. Isaacs, Antonio Torres Lopez, Roong J. Wong, Karen Wilson, Adam F. Lee
Summary: The article demonstrates a method for continuous flow synthesis of SBA-15 at high yield at 80 degrees C using a simple tube reactor. The resulting SBA-15 exhibits excellent textural properties and far higher productivity than previously reported in batch or flow synthesis.
MICROPOROUS AND MESOPOROUS MATERIALS
(2022)
Article
Chemistry, Physical
Jussara Morais da Silva, Renilma Carvalho Sousa, Jean Claudio S. Costa, Janildo Lopes Magalhaes, Geraldo E. Luz, Carla Veronica Rodarte de Moura, Edmilson Miranda de Moura
Summary: The study investigated the impact of changing the Si/Ti ratio of the TiO2@SBA-15 support on the catalytic performance of synthesized materials, with bimetallic catalysts showing excellent activity and selectivity in benzaldehyde reactions.
Article
Chemistry, Inorganic & Nuclear
Selvakumari Ulagesan, Madhappan Santhamoorthy, Thi Phan Vy Phan, Krishnapandi Alagumalai, Kokila Thirupathi, Seong-Cheol Kim, Taek-Jeong Nam, Youn-Hee Choi
Summary: In this study, a mesoporous silica material containing amidoxime ligand groups was successfully synthesized through surface modification. The resulting SBA-15@AMI NPs exhibited a high concentration of amidoxime ligands on the surface, making them suitable for pH-responsive drug delivery applications in cancer therapy.
INORGANIC CHEMISTRY COMMUNICATIONS
(2022)
Article
Engineering, Chemical
Tugba Yarbas, Alime Citak
Summary: Pure and boron-containing B-SBA-15 mesoporous materials were synthesized and characterized. The surface properties of the samples were found to be influenced by the boron content and temperature, with higher boron content resulting in more acidic surface.
INTERNATIONAL JOURNAL OF ADHESION AND ADHESIVES
(2022)
Article
Environmental Sciences
Zeinab Ezzeddine, Isabelle Batonneau-Gener, Yannick Pouilloux
Summary: The removal of zinc ions from water was studied using two types of ordered mesoporous silica (SBA-15 and SBA-16). Both materials were modified with APTES and EDTA through post grafting methods. The modified adsorbents were characterized by various analytical techniques, and the structural integrity was maintained. Optimal adsorption conditions and maximum adsorption capacity were determined through experimental tests, and the regenerated adsorbent showed no significant decline in adsorption efficiency.
Article
Materials Science, Multidisciplinary
Qiang Xian, Xinmiao He, Li Chen, Enchao Wang, Hui Dan, Yi Ding
Summary: Mesoporous SBA-15 was synthesized using a binary acid H2SO4, and the effects of H2SO4 concentration and synthesis temperature on the morphology and mesostructure were investigated. Results showed that different ordered structures and morphologies could be obtained by adjusting the H2SO4 concentration and synthesis temperature.
PHILOSOPHICAL MAGAZINE LETTERS
(2021)
Article
Chemistry, Physical
Kiria Kojima, Ryota Osuga, Shuhei Yasuda, Toshiyuki Yokoi, Yasuhiro Hosogi, Shintaro Itagaki, Yoshikuni Okumura, Junko N. Kondo
Summary: The study showed that the HSiW·6H2O crystals loaded on SBA-15 and AEROSIL had weak secondary interactions with adjacent silanol groups, while destruction of Keggin units occurred on Al2O3. Furthermore, the IR method can be used to quantify the Bronsted and Lewis acid sites in the loaded HSiW·6H2O.
JOURNAL OF CATALYSIS
(2021)
Article
Engineering, Environmental
Jiantao Liang, Weirui Chen, Gaozu Liao, Jing Wang, Xipeng Wei, Yiming Tang, Xukai Li, Laisheng Li
Summary: A facile hydrothermal method was proposed to regulate the pore structure and introduce Ce-based Lewis sites within Ce-SBA-15, named as Ce-SBA-U. The mesoporous size of Ce-SBA-U could be enlarged by urea dosage, facilitating the mass transfer of ozone and its activation on Ce(III)-based Lewis sites. The Ce-SBA-U/O3 process achieved high removal rates of clofibric acid (CA) and TOC, indicating its superior performance compared to sole ozonation and Ce-SBA-15/O3 processes.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2022)
Article
Chemistry, Applied
Luis M. M. Correia, Mohamed M. A. Soliman, Carlos M. Granadeiro, Salete S. Balula, Luisa M. D. R. S. Martins, Armando J. L. Pombeiro, Elisabete C. B. A. Alegria
Summary: The neutral trichloro[hydrotris(1-pyrazolyl)methane]vanadium(III) C-scorpionate complex was immobilized on amine-functionalized mesoporous silica to form a composite, which showed higher catalytic performance in peroxidative oxidation of benzyl alcohol compared to the analogous homogeneous complex. Various parameters were studied, leading to overall yields of around 60% and high turnover numbers. The composite also exhibited good recyclability and structural stability, making it a promising catalyst for other oxidative reactions.
MICROPOROUS AND MESOPOROUS MATERIALS
(2021)
Article
Chemistry, Multidisciplinary
Tzong-Horng Liou, Guan-Wei Chen, Shang Yang
Summary: Amino-functionalized nanoporous SBA-15 materials were studied for the adsorption of tannic acid (TA). The prepared composites exhibited high adsorption capacity and ultrafast removal of TA under various conditions including solution temperature, solution pH, agitation speed, adsorbent dosage, and initial TA concentration.
Article
Chemistry, Applied
Vahide Nuran Mutlu, Selahattin Yilmaz
Summary: The glycosidation of glucose with n-butanol was studied using sulphated Zr and tungstophosphoric acid incorporated SBA-15 catalysts, showing improved acidity and higher yields of butyl glucoside. The TPA-SBA-15 catalyst demonstrated the highest activity and selectivity, with stable and reusable performance. Further studies on reaction temperature and catalyst amount were conducted to optimize the reaction parameters.
Article
Chemistry, Applied
Mani Durai, Sakthivel Kumaravel, Arivanandhan Mukannan, Balu Krishnakumar, Sivakumar Thiripuranthagan, Young-Ho Ahn
Summary: The study aims to synthesize ethyl valerate (EV) as a fuel additive by esterifying valeric acid with ethanol using Al-SB and x% PTA/Al-SB catalysts. Among the catalysts, the 30% PTA/Al-SB catalyst exhibited the highest catalytic activity with 96% conversion of valeric acid and 100% selectivity towards ethyl valerate. Additionally, the recyclability of the prepared catalyst was found to be excellent.
JOURNAL OF POROUS MATERIALS
(2021)
Article
Materials Science, Multidisciplinary
Siyuan Ban, Xuchen Nie, Zhihao Lei, Jiabao Yi, Ajayan Vinu, Yang Bao, Yanpeng Liu
Summary: This review provides an overview of the principles, advances, and applications of nanoelectromechanical system resonators based on low-dimensional materials. These resonators have shown promising potential in sensing, electronics, and quantum detection due to the unique properties of low-dimensional materials. However, there are challenges in fabrication, tuning, and utilization of these resonators.
MATERIALS RESEARCH LETTERS
(2023)
Review
Chemistry, Multidisciplinary
Arun V. Baskar, Gurwinder Singh, Ajanya M. Ruban, Jefrin M. Davidraj, Rohan Bahadur, Prasanthi Sooriyakumar, Prashant Kumar, Ajay Karakoti, Jiabao Yi, Ajayan Vinu
Summary: The rapid growth in electronic and portable devices has increased the demand for safe, durable, lightweight, low-cost, high-energy, and high-power-density electrode materials for rechargeable batteries. This review discusses the use of biomass-based materials and their hybrids for energy generation research, highlighting their unique properties and advancements in preparation and modification strategies. The electrochemical performances of these materials in different batteries and the challenges in maximizing their specific capacity and lifetime are also addressed.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Article
Materials Science, Biomaterials
Geun-Woo Jin, Goeun Choi, Huiyan Piao, N. Sanoj Rejinold, Shunsuke Asahina, Soo-Jin Choi, Hwa Jeong Lee, Jin-Ho Choy
Summary: Cancer therapies currently consist of surgery, radiation, chemotherapy, targeted therapy, and immunotherapy. Researchers have developed a new compound called polytaxel (PTX) that can potentially replace existing therapies by offering high anticancer efficacy and 100% survival rate without side effects. Proof-of-concept studies conducted on pancreatic cancer models showed that PTX inhibited tumors similarly to the commonly used drug docetaxel (DTX), but without the associated toxic side effects.
JOURNAL OF MATERIALS CHEMISTRY B
(2023)
Article
Chemistry, Physical
Stalin Joseph, Gurwinder Singh, Jang Mee Lee, Xiaojiang Yu, Mark BH. Breese, Sujanya Maria Ruban, Suresh Kumar Bhargava, Jiabao Yi, Ajayan Vinu
Summary: In this study, a hierarchical carbon structure embedded with micro-and meso-pores was successfully synthesized through a unique one-pot synthesis method. Soft drink was utilized as the carbon source, converting industrial waste into value-added products for energy systems. The optimized hierarchical structure exhibited a larger specific surface area and delivered promising functionalities in various applications such as batteries and CO2 capture.
Article
Chemistry, Physical
Sujanya Maria Ruban, Gurwinder Singh, Kavitha Ramadass, Stalin Joseph, Arsh Ismaili, Chien-Yu Huang, Xinwei Guan, Prashant Kumar, Yoshihiro Sugi, Ajayan Vinu
Summary: Ordered N-rich mesoporous carbon nitrides (MCNs) were synthesized via pyrolysis of aminoguanidine using SBA-15 as a template, and their properties and nitrogen content were controlled by varying the carbonization temperature. The MCN-400 exhibited the highest catalytic performance in the Knoevenagel condensation reaction, with a product yield of 96.4%. This superior catalytic activity was attributed to high nitrogen content, high surface area, and large pore volume of MCN-400.
Article
Chemistry, Analytical
Mohamed El-Newehy, Badr M. Thamer, Meera Moydeen Abdul Hameed, Hany El-Hamshary
Summary: Poly(vinyl chloride) (PVC) was reinforced with electrospun glass nanofibres (EGN) containing lanthanide-doped aluminate nanoparticles (LANP). The resulting EGN@PVC composites exhibited photochromic and afterglow properties, making them suitable for applications such as smart windows and anti-counterfeiting prints. The EGN@PVC samples showed fluorescence emission with instant reversibility at low concentrations of LANP, while samples with higher phosphor concentrations exhibited persistent phosphorescence emission. The composites also displayed UV-blocking characteristics and improved scratch resistance compared to PVC alone.
Article
Materials Science, Multidisciplinary
Hany Elsawy, Badr M. Thamer, Azza Sedky, Mohamed H. El-Newehy
Summary: In this study, a high-efficiency anodic electrocatalyst based on nickel nanoparticles supported on three-dimensional porous carbon frameworks (Ni/3DPCFs) was designed for the oxidation of urea and methanol. The catalyst was prepared by a innovative method involving microwave-assisted synthesis of carbon quantum dots (CQDs) and nickel ions (Ni2+) adsorbed on its surface, followed by pyrolysis. The prepared electrocatalyst showed high efficiency for the oxidation of urea and methanol in alkaline media.
MATERIALS CHEMISTRY AND PHYSICS
(2023)
Review
Chemistry, Multidisciplinary
Seungjin Yu, Goeun Choi, Jin-Ho Choy
Summary: Two-dimensional nanomaterials, especially layered double hydroxides (LDHs), have found extensive applications in biomedical field due to their biocompatibility, biodegradability, controllable drug release/loading ability, and enhanced cellular permeability. This review summarizes the synthetic strategies and therapeutic actions of single-function LDH-based nanohybrids, as well as the recently developed multifunctional systems for drug delivery and bio-imaging (from 2019 to 2023).
Article
Chemistry, Analytical
Mohamed El-Newehy, Hany El-Hamshary, Meera Moydeen Abdul Hameed
Summary: Photochromic inks have been widely used for anti-counterfeiting purposes in commercial products, but they have drawbacks such as poor durability and high cost. In this study, novel photochromic nanofibres were developed by immobilizing lanthanide-doped strontium aluminate nanoparticles into cellulose acetate nanofibres. These nanofibres exhibited high reversibility and photostability when exposed to UV light, with different ratios of nanoparticles producing unique emission characteristics.
Article
Materials Science, Multidisciplinary
Mohamed El-Newehy, Badr M. Thamer, Hany El-Hamshary, Meera Moydeen Abdulhameed
Summary: Discharging untreated effluent into water bodies significantly impacts water quality, leading to the spread of waterborne infections and high death rates worldwide. This study aimed to investigate the antimicrobial properties of multi-walled carbon nanotubes (MWCNTs) and their effectiveness in eliminating waterborne bacteria during wastewater treatment. The results showed that MWCNTs exhibited antimicrobial properties and could effectively eliminate selected pathogens, making them a promising solution for controlling waterborne pathogens in wastewater.
MATERIALS CHEMISTRY AND PHYSICS
(2023)
Article
Chemistry, Multidisciplinary
Goeun Choi, N. Sanoj Rejinold, Huiyan Piao, Young Bae Ryu, Hyung-Jun Kwon, In Chul Lee, Jeong In Seo, Hye Hyun Yoo, Geun-woo Jin, Jin-Ho Choy
Summary: The COVID-19 pandemic requires new orally administrable antiviral agents. The engineering of hydrophilic NIC-MgO-HPMC improves intestinal permeability and inhibits SARS-CoV-2 replication.
Review
Biochemistry & Molecular Biology
Xiao Yu, Jie Cui, Yihong Shen, Wanxin Guo, Pengfei Cai, Yujie Chen, Zhengchao Yuan, Mingyue Liu, Mohamed EL-Newehy, Hany EL-Hamshary, Yosry Morsi, Binbin Sun, Muhammad Shafiq, Xiumei Mo
Summary: Tendon is a bundle of collagen fibers connecting muscle to bone, but degeneration and rupture can occur due to overuse or trauma. Developing a scaffold that matches the structure and mechanics of the natural tendon is crucial for successful repair. Various strategies including electrospinning, 3D printing, hydrogels, and microspheres are being explored for tendon repair. With continued advancements in biomaterials and technology, scaffolds have the potential to greatly impact tendon repair applications.
FRONTIERS IN BIOSCIENCE-LANDMARK
(2023)
Article
Materials Science, Biomaterials
Jing Wang, Yuan Liu, Minmin Lv, Xiaoli Zhao, Kwok Fai So, Hui Li, Mohamed EL-Newehy, Hany EL-Hamshary, Yosry Morsi, Xiumei Mo
Summary: An ideal nerve conduit with topological guidance and biochemical and electrical signal transduction mechanisms is needed for the treatment of peripheral nerve injury. In this study, aligned conductive nanofibrous scaffolds were fabricated and loaded with nerve growth factor (NGF) and Lycium barbarum polysaccharides (LBP). LBP accelerated axon regeneration after severe peripheral nerve injury, and the combination of LBP and NGF promoted nerve cell proliferation and neurite outgrowth. Multiwalled carbon nanotubes (MWCNTs) were introduced to increase electrical conductivity and enhance directional growth and neurite extension of neurons. The combination of conductive fibrous scaffolds and electrical stimulation further promoted cell differentiation and axon outgrowth.
REGENERATIVE BIOMATERIALS
(2023)
Article
Materials Science, Biomaterials
Wanxin Guo, Binan Zhao, Muhammad Shafiq, Xiao Yu, Yihong Shen, Jie Cui, Yujie Chen, Pengfei Cai, Zhengchao Yuan, Mohamed EL-Newehy, Hany EL-Hamshary, Yosry Morsi, Binbin Sun, Jianfeng Pan, Xiumei Mo
Summary: The objective of this research was to screen for the effect of different types of bio-elastomers as hemostatic dressings. A PU-TA/Gel sponge was prepared, which showed promising potential in terms of porosity, water absorption ratio, cytocompatibility, hemolysis, clotting time, and wound healing. The sponge rapidly induced stable blood clots and good skin regeneration.
REGENERATIVE BIOMATERIALS
(2023)
Article
Nanoscience & Nanotechnology
Pengfei Cai, Chunchun Li, Yangfan Ding, Hanting Lu, Xiao Yu, Jie Cui, Fan Yu, Hongsheng Wang, Jinglei Wu, Mohamed EL-Newehy, Meera Moydeen Abdulhameed, Liang Song, Xiumei Mo, Binbin Sun
Summary: This research introduces a novel method that combines electrospun nanofibers with 3D printing techniques to fabricate composite scaffolds for bone defect treatment. Compared to nanoparticle-reinforced scaffolds, these scaffolds infused with nanofibers exhibit superior mechanical attributes and bioactivity.
ACS APPLIED MATERIALS & INTERFACES
(2023)
