Results 31 to 40 of about 168,379 (265)
Copolyamides of nylon‐4,6 and nylon‐4,T [PDF]
Journal of Polymer Science Part A: Polymer Chemistry, 1989 AbstractCopolyamides of nylon‐4,6 and nylon‐4,T were prepared by a two‐step method: (1) a prepolymerization in an autoclave (40 min at 210°C) and (2) a postcondensation in the solid state (4 h, 260°C). On these materials was studied the melting behavior with DSC, the crystalline structure with WAXS, the water absorption, and the mechanical properties ...
Gaymans, R.J., Aalto, S., Maurer, F.H.J.
openaire +2 more sources
Advanced Functional Materials, EarlyView.Alumina growth narrows surface pores and seals non‐selective defects, enhancing selectivity while preserving the nanoporous graphene architecture. Additionally, the deposition enables gradient‐controlled structural modification, with intergrown alumina acting as a physical cross‐linker that stabilizes the laminar structure.
Junhyeok Kang +8 more
wiley +1 more source
International Journal of Education Policy and Leadership, 2013 This study examines the management of school infrastructure in the context of the “no-fee schools” policy introduced in the South African education delivery system.
Ramodikoe Nylon Marishane
doaj
Functionalization of Commercial Electrospun Veils with Zinc Oxide Nanostructures
Nanomaterials, 2021 The present research is focused on the synthesis of hexagonal ZnO wurtzite nanorods for the decoration of commercially available electrospun nylon nanofibers.
Irene Bavasso +7 more
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Advanced Functional Materials, EarlyView.ABSTRACT Breathable membranes that reject chemical warfare agents (CWAs) are required for next‐generation protective apparel. A dual‐function graphene oxide (GO)‐polyamine architecture is introduced that addresses the long‐standing tradeoff between vapor transmission and CWA selectivity.
Hyungjun Kim +6 more
wiley +1 more source
Mechanical Properties and Stress Analysis of Natural Fiber Reinforced Polymer Composite Spur Gear
Журнал інженерних наукThis research study investigates the mechanical properties of polymer composites reinforced with natural fibers, specifically Palmyra palm leaf stalk fiber (PPLSF) and Palmyra palm primary leaf stalk fiber (PPFLSF). Tensile, flexural, and impact strength
M. Jayaraj +4 more
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Magnetic Nylon 6 Nanocomposites for the Microextraction of Nucleic Acids from Biological Samples
Magnetochemistry, 2022 Magnetic Fe3O4 nanoparticles (MNPs) have great potential for nucleic acid separation, detection, and delivery. MNPs are considered a valuable tool in biomedicine due to their cost-effectiveness, stability, easy surface functionalization, and the ...
Anastasia Bulgakova +2 more
doaj +1 more source
Strategies for Loading and Releasing Peptide Therapeutics in Biodegradable Carriers
Advanced Functional Materials, EarlyView.A biodegradable carrier‐based peptide delivery system is a powerful treatment platform for diverse diseases, owing to its superior therapeutic efficacy and low toxicity. This review examines the conventional peptide‐loaded carrier fabrication process and its current limitations.
Wookyoung Jang, Ki Wan Bong
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Frontiers in Medicine, 2021 Purpose: To compare the performance of nylon sutures to that of polyglactin sutures in pediatric patients undergoing cataract surgery.Setting: University of Campinas (UNICAMP), Campinas, São Paulo, BrazilDesign: A prospective, randomized, partially ...
Mathias V. Melega +5 more
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Biocompatible but Antibacterial Mechanism of Graphene Oxide for Sustainable Antibiotics
Advanced Functional Materials, EarlyView.Graphene oxide (GO) exhibits selective antibacterial activity through specific interactions between its oxygen functional groups and bacterial membrane phospholipid POPG, causing membrane destabilization while maintaining biocompatibility. Model membrane studies and infected wound models in mice and pigs demonstrate effective bacterial suppression and ...
Sujin Cha +15 more
wiley +1 more source