Article
Polymer Science
Ali A. Mohammed, Siwei Li, Tian Sang, Julian R. Jones, Alessandra Pinna
Summary: Nanocomposite hydrogels have great potential for applications in bone tissue engineering. By synthesizing them through the crosslinking of polymers and nanomaterials, their properties can be enhanced. However, their mechanical properties need further improvement to meet the requirements of bone tissue engineering.
Article
Materials Science, Multidisciplinary
Christopher B. Keller, Julia S. Siqueira, Scott M. Grayson
Summary: This study expands upon previous work on amphiphilic-grafted nanoparticles and investigates their oil encapsulation properties through UV and DSC analysis. The results suggest that these nanoparticles can encapsulate a significant amount of crude oil and do not have a critical micelle concentration.
ACS APPLIED POLYMER MATERIALS
(2021)
Article
Chemistry, Organic
Florian Rigoulet, Albert Artigas, Nawal Ferdi, Michel Giorgi, Yoann Coquerel
Summary: This study demonstrates that stereochemistry is a critical factor in the reactivity of non-planar polycyclic aromatic hydrocarbons.
ORGANIC CHEMISTRY FRONTIERS
(2023)
Article
Chemistry, Multidisciplinary
Manel Ben Salah, Najeh Jaoued, Taoufik Soltani, Ahlem Guesmi, Ammar Houas, Naoufel Ben Hamadi, Souhaira Hbaieb
Summary: This study investigates the effect of non-modified silica (SiO2), silica grafted with aniline (ANI@SiO2), and silica grafted with polyaniline (PANI@SiO2) nanoparticles on the physical parameters of 7CB liquid crystal. The results show an increase in free ion concentration in the doped samples, which affects the electro-physical parameters of the liquid crystal. By fitting an equivalent electric circuit model to the experimental data, the ion mobility and diffusion constant of the liquid crystal can be calculated. Furthermore, the doping of 7CB with the aforementioned nanoparticles increases the response time, thresholds, and viscosity.
Article
Chemistry, Physical
Sujuan Zhang, Gaoli Chen, Zhaowei Zhu, Ya Wang, Lei Wang, Sugang Meng, Xiuzhen Zheng, Xianliang Fu, Fuxiang Zhang, Weixin Huang, Shifu Chen
Summary: This study developed a strategy using Au/CdS nanocomposites for selective organic transformations, showing excellent charge separation and transfer performance, leading to increased efficiency in the oxidation of aromatic alcohols and reduction of nitroaromatic hydrocarbons.
JOURNAL OF CATALYSIS
(2021)
Article
Chemistry, Physical
Cristina Carucci, Giulia Sechi, Marco Piludu, Maura Monduzzi, Andrea Salis
Summary: This study focuses on optimizing the loading and release processes of the flavonoid quercetin by changing the solvent composition, leading to a more sustained release and improved stability and release concentration of quercetin in a pH-sensitive antimicrobial drug delivery system based on Mesoporous silica nanoparticles (MSN) functionalized with different compounds.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2022)
Article
Chemistry, Inorganic & Nuclear
Morvarid Aghayan, Ali Mahmoudi, Mohammad Reza Sazegar, Forogh Adhami
Summary: This study introduces a naked-eye analytical sensing platform for the detection of L-cysteine (cys) and mercury ions (Hg2+) using zinc and cobalt grafted mesoporous silica nanoparticles (MSNs). By utilizing the peroxidase-like activity of the synthesized samples, the detection of cys and Hg2+ was achieved, showing superior sensitivity and linear range compared to other nanoparticles. This method provides a novel approach for biological monitoring and clinical diagnostics.
DALTON TRANSACTIONS
(2021)
Article
Engineering, Chemical
Dhiyaa A. Hussein Al-Timimi, Qusay F. Alsalhy, Adnan A. AbdulRazak, Enrico Drioli
Summary: In this study, a novel low fouling mixed matrix membrane (MMMs) composed of polyethylenimine coated silica nanoparticles and polyethersulfone membrane was developed. The modified membrane exhibited improved performance and resistance to fouling compared to the pristine membrane.
JOURNAL OF MEMBRANE SCIENCE
(2022)
Article
Polymer Science
Hien The Ho, Trang N. T. Phan, Marine Bonnevide, Nicolas Malicki, Marc Couty, Jacques Jestin, Didier Gigmes
Summary: The study presents the synthesis of a new nitroxide-mediated polymerization (NMP) initiator with a photolabile ortho-nitrobenzyl (oNB) group for surface-initiated NMP preparation of well-defined photoresponsive polystyrene grafted on silica nanoparticles. The photocleavable and photoresponsive properties of the materials were demonstrated using small angle X-ray scattering (SAXS) characterization.
MACROMOLECULAR RAPID COMMUNICATIONS
(2021)
Article
Polymer Science
Shaofan Li, Weilong Ju, Guoming Liu, Yunlan Su, Alejandro J. Muller, Dujin Wang
Summary: The properties of polymer nanocomposites (PNCs) are dependent on the dispersion of nanoparticles within the polymer matrix. This study investigates the dispersion and crystallization behaviors of PE/HDPE1289-g-SiO2 PNCs in different polyethylene (PE) matrices. The results show that the dispersion of HDPE1289-g-SiO2 nanoparticles is influenced by the P/N parameter and the similarity between the grafted and matrix polymer chain structures.
Article
Engineering, Environmental
Julie S. da Costa, Emanuel G. Bertizzolo, Daniela Bianchini, Andre R. Fajardo
Summary: The composite hydrogel GEL-SBA15, prepared from polymers functionalized with siliceous materials, showed high adsorption capacity for benzene and toluene from aqueous solutions. It is a promising adsorbent for the removal of these pollutants from water.
JOURNAL OF HAZARDOUS MATERIALS
(2021)
Article
Chemistry, Inorganic & Nuclear
Loveneesh Kumar, Nishant Verma, Ravi Tomar, Hitesh Sehrawat, Rupesh Kumar, Ramesh Chandra
Summary: Benzimidazole is a key component in many natural and pharmacologically active compounds. A highly efficient manganese oxide-supported magnesium and aluminium-based nanocomposite catalyst was prepared using deposition-precipitation method and characterized using various techniques. The catalyst was then used for the green synthesis of 2-substituted benzimidazole derivatives with different substituents, resulting in high yields. The process offers advantages such as the use of a greener solvent, high conversions, no need for additives or bases, a good TOF, and shorter reaction time.
DALTON TRANSACTIONS
(2023)
Article
Engineering, Biomedical
Juan L. Paris, Cristina Monio, Ana M. Perez-Moreno, Raquel Jurado-Escobar, Gador Bogas, Tahia D. Fernandez, Maria I. Montanez, Cristobalina Mayorga, Maria J. Torres
Summary: This study explores the application of mesoporous silica nanoparticles in allergy diagnosis. By grafting IgG-binding protein G' onto nanoparticles with specific pore sizes, the capture capacity of IgG is greatly enhanced. The researchers find that the material with the optimal pore size efficiently captures human IgG in a selective manner, highlighting its potential in in vitro allergy diagnosis.
ADVANCED HEALTHCARE MATERIALS
(2023)
Article
Chemistry, Physical
Shu Gui, Jing Li, Sujuan Zhang, Gaoli Chen, Zhongliao Wang, Zhaowei Zhu, Xianliang Fu, Sugang Meng, Xiuzhen Zheng, Fuxiang Zhang, Weixin Huang, Shifu Chen
Summary: A novel Au13@Pt/CdS hybrid nanomaterial was prepared and used for the selective redox reaction of aromatic alcohols and nitroarenes. The anchoring of Au13@Pt nanoparticles on CdS provided abundant e- enrichment sites and wider charge transfer channels, leading to significantly improved photocatalytic performance. This study is expected to offer a way to fabricate a dual-functional photocatalyst for selective organic transformations.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Polymer Science
Hua-lin Ou, Bao-qing Zhang, Chen-yang Liu
Summary: A series of poly(3-(triethoxysilyl)propyl methacrylate) (PTEPM) oligomers, polymethylmethacrylate (PMMA) oligomers, and block copolymers of PTEPM-b-PMMA were synthesized using RAFT polymerization. The copolymers were then co-assembled with PMMA or PTEPM oligomers to form ordered nanoscale structures, and the PTEPM block was crosslinked to form silsesquioxane core when immersed in hydrochloric acid atmosphere. By adjusting the molecular structure of the block copolymer and the ratio of the components, the structural parameters of the nanoparticles could be precisely controlled. These nanoparticles are important for studying the relationship between the microstructures and properties of polymer nanocomposites.
ACTA POLYMERICA SINICA
(2022)
