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High-performance 2D electronic devices enabled by strong and tough two-dimensional polymer with ultra-low dielectric constant.
Nat Commun
December 2024
Department of Materials Science and NanoEngineering and the Rice Advanced Materials Institute, Rice University, Houston, TX, 77005, USA.
As the feature size of microelectronic circuits is scaling down to nanometer order, the increasing interconnect crosstalk, resistance-capacitance (RC) delay and power consumption can limit the chip performance and reliability. To address these challenges, new low-k dielectric (k < 2) materials need to be developed to replace current silicon dioxide (k = 3.9) or SiCOH, etc.
View Article and Find Full Text PDFSilicon-Enhanced PVA Hydrogels in Flexible Sensors: Mechanism, Applications, and Recycling.
Gels
December 2024
Research Institute of Polymer Materials, School of Materials Science and Engineering, Shandong University, Jinan 250061, China.
Hydrogels, known for their outstanding water absorption, flexibility, and biocompatibility, have been widely utilized in various fields. Nevertheless, their application is still limited by their relatively low mechanical performance. This study has successfully developed a dual-network hydrogel with exceptional mechanical properties by embedding amino-functionalized polysiloxane (APSi) networks into a polyvinyl alcohol (PVA) matrix.
View Article and Find Full Text PDFEffects of 5 Nanosilica Concentrations and Humid Environments at 6 Different pH Levels on Fracture Toughness and Moisture Absorption of Dental Polymethyl Methacrylate Resin Reinforced With Silica Nanoparticles: An Explorative Experimental Scanning Electron Microscopy Study.
Clin Exp Dent Res
December 2024
Department of Civil Engineering, Thammasat School of Engineering, Faculty of Engineering, Thammasat University, Pathumthani, Thailand.
Article Synopsis
- A study investigated how nanosilica content and environmental pH affect the fracture resistance and moisture absorption of polymethyl methacrylate (PMMA) resin, revealing significant interactions between these factors.
- The research involved creating 90 resin specimens with varying nanosilica percentages and measuring their performance under different pH levels, following specific testing standards.
- Results showed that both nanosilica levels and pH significantly influenced fracture toughness, with a negative correlation found between moisture absorption and fracture toughness.
Anatomical and Trait Analyses Reveal a Silicon-Carbon Trade-Off in the Epidermis of Sedges.
Plant Cell Environ
November 2024
School of Biological Sciences, University of Western Australia, Perth, Australia.
Article Synopsis
- Recent research indicates a trade-off between silicon and carbon-based compounds in plants, with a specific focus on stress resistance and mechanical support.
- This study examined 17 species from the Cyperaceae family, using both leaf trait measurements and advanced microscopic techniques.
- Findings revealed that the accumulation of silicon negatively correlates with tannins and epicuticular waxes, suggesting complex strategies in plant responses to environmental stresses that previous whole-leaf analyses overlooked.
Hofmeister effect enhanced SiO/gelatin-based hydrophobically associated hydrogels and their lubricating properties.
Int J Biol Macromol
December 2024
School of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou, Jiangsu 225002, China.
In recent years, hydrogel materials with suitable energy dissipation mechanisms and excellent mechanical properties have attracted much attention in tissue engineering due to their ability to mimic the natural cartilage structure. However, in cartilage tissue's regeneration and repair process, hydrogel materials should also possess satisfactory lubrication properties and biocompatibility. Therefore, preparing biocompatible low friction, high toughness hydrogels remain a challenge.
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