Wetting and drying of hydrophobic pores with diameters lower than 0.2 μm by aqueous solutions at different hydrostatic pressures is investigated by measuring the ionic conductance variation through the nanopores. The critical pressure for water intrusion into the nanopores increases with lowering the pore diameter and the surface tension of the hydrophobic modification, in agreement with the Laplace equation. Nevertheless, restoring the pressure to the atmospheric one does not result in spontaneous pore dewetting unless bubbles are left inside the pores. Such bubbles can appear at the regions of narrowing cross section and/or varying quality of the hydrophobic modification and thus can be engineered to control water expulsion.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1021/nn101080k | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Leaf senescence characteristics and economic benefits of rice under alternate wetting and drying irrigation and blended use of polymer-coated and common urea.
Front Plant Sci
December 2024
School of Hydraulic Engineering, Zhejiang University of Water Resources and Electric Power, Hangzhou, China.
Water-saving irrigation and the mixed application of controlled-release nitrogen fertilizer (CRNF) and common urea (CU; with a higher nitrogen release rate) have shown promise in improving rice yield with high resource use efficiency. However, the physiological mechanism underlying this effect remains largely unknown. This study involved a field experiment on rice in Jingzhou City, Central China, in 2020 and 2021.
View Article and Find Full Text PDFSynergy of Hydrophilic Properties and Antibacterial Inhibition in Polyvinyl Alcohol Nanofibrous Mats Loaded With Croton Bonplandianum Baill Leaf Extract.
Biopolymers
January 2025
Department of Textile Engineering, Dhaka University of Engineering and Technology, Gazipur, Dhaka, Bangladesh.
The antibacterial nanofibrous mat is crucial in biomedicine as it enhances infection control, expedites wound healing, and mitigates health hazards by decreasing antibiotic usage. A novel synergistic antibacterial and hydrophilic nanofibrous mat successfully fabricated by solution electrospinning from polyvinyl alcohol (PVA) incorporated Croton bonplandianum Baill (CBB) leaves extract. Antioxidant-enriched leaf extract of the CBB plant was integrated with PVA in varying proportions of 30% (CBB-30), 40% (CBB-40), and 50% (CBB-50) to manufacture antibacterial nanofibrous mat.
View Article and Find Full Text PDFSustainable improvement of granite sludge dust properties using microbially induced carbonate precipitation (MICP): strength enhancement, erosion prevention, and dust mitigation.
Environ Sci Pollut Res Int
January 2025
Department of Civil Engineering, National Institute of Technology Warangal, Warangal, 506004, India.
Granite sludge dust (GSD), a significant byproduct of granite processing globally, poses severe environmental and public health challenges, with India alone generating 200 million tons annually. The conventional use of GSD in soil stabilization and construction materials is limited to 20-30%, underscoring the urgent need for sustainable repurposing solutions within the circular economy catering to broader bulk utilization. Unlike traditional techniques, repurposing granite dust using microbially induced calcite precipitation (MICP) offers a sustainable low-impact and eco-friendly ground improvement solution.
View Article and Find Full Text PDFRapid Fluid-Induced-Expanding Chitosan-Derived Hemostatic Sponges with Excellent Antimicrobial and Antioxidant Properties for Incompressible Hemorrhage and Wound Healing.
Biomacromolecules
January 2025
Department of Pediatric Orthopaedics, Xinhua Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200092, China.
Article Synopsis
- Chitosan-based materials are biocompatible with good hemostatic properties, but face challenges like low wettability and strength.
- The novel hemostatic sponge, made from chitosan modified with catechol and long alkyl groups, shows improved antimicrobial and antioxidant effects, and enhances blood cell interactions for faster bleeding control.
- In tests on rats, the sponge demonstrated better clotting abilities, support for wound healing, and is ideal for treating severe bleeding.
Interfacial functionalization and capillary force welding of enhanced silver nanowire-cellulose nanofiber composite electrodes for electroluminescent devices.
Int J Biol Macromol
December 2024
Plant Fiber Material Science Research Center, State Key Laboratory of Pulp and Paper Engineering, School of Light Industry and Engineering, South China University of Technology, Guangzhou 510640, PR China; Guangdong Provincial Key Laboratory of Plant Resources Biorefinery, Guangzhou 510640, PR China.
The development of flexible, intelligent, and lightweight optoelectronic devices based on flexible transparent conductive electrodes (FTCEs) utilizing silver nanowires (AgNWs) has garnered increasing attention. However, achieving low surface resistance, strong adhesion to the flexible substrate, low surface roughness, and green degradability remains a challenge. Here, a composite electrode combining natural polymer cellulose nanofibers (TCNFs) with AgNWs was prepared.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!