Competitive Wetting: A New Approach to Prevent Liquid Penetration through Porous Materials with Superior Synergistic Effect

A novel approach to prevent the permeation of liquid across porous materials by a synergistic effect is reported. Both fabrics are individually susceptible to be wetted and penetrated by low surface tension liquids. However, when they are assembled, they can prevent the low surface tension liquids from penetrating because of the wettability gap between the two fabrics. AbstractBlocking liquid penetration in porous materials is a key function for several applications including chemical protective clothing (CPC), wound healing, and hygiene products. Enormous efforts are made to prevent liquid penetration through porous media by the modification of materials. CPC is used as an example to demonstrate the effect of the synergistic effect on liquid penetration. A common strategy to achieve liquid protection is the use of liquid-repellent surfaces with the aid of a liquid absorption liner layer. However, this strategy demonstrates limited success for low surface energy liquids. Herein, a novel approach is reported to prevent the permeation of liquid across porous materials by a synergistic effect. Both fabrics are individually susceptible to be wetted by low surface tension liquids. However, when they are assembled, they can prevent low surface tension liquids from penetrating because of the wettability gap between the two fabrics. The fabric assembly demonstrates an increase in the liquid prevention capacity by 70 –1000 times compared with a commercial CPC material. This nove...
Source: Small - Category: Nanotechnology Authors: Tags: Research Article Source Type: research

Related Links:

ConclusionThis pilot study establishes short-term efficacy and safety of mirabegron in valve bladder with overactivity. Further larger long-term studies are warranted.
Source: Pediatric Surgery International - Category: Surgery Source Type: research
In this study, the authors synthesize a triphenylamine-based anionic CPE (TPAFS-TMA) as an HTL for p-i-n-type PeSCs. TPAFS-TMA has appropriate frontier molecular orbital (FMO) levels similar to those of the commonly used poly(bis(4-phenyl)-2,4,6-trimethy lphenylamine) (PTAA) HTL. The ionic and semiconducting TPAFS-TMA shows high compatibility, high transmittance, appropriate FMO energy levels for hole extraction and electron blocking, as well as defect passivating properties, which are confirmed using various optical and electrical analyses. Thus, t he PeSC with the TPAFS-TMA HTL exhibits the best power conversion efficien...
Source: Small - Category: Nanotechnology Authors: Tags: Research Article Source Type: research
ACS NanoDOI: 10.1021/acsnano.1c07512
Source: ACS Nano - Category: Nanotechnology Authors: Source Type: research
During metamorphosis, the wings of a butterfly sprout hundreds of thousands of scales with intricate microstructures and nano-structures that determine the wings’ optical appearance, wetting characteristics, thermodynamic properties, and aerodynamic behavior. Although the functional characteristics of scales are well known and prove desirable in various applications, the dynamic processes and...
Source: Proceedings of the National Academy of Sciences - Category: Science Authors: Tags: Applied Biological Sciences Source Type: research
Cryobiology. 2021 Nov 25:S0011-2240(21)00354-0. doi: 10.1016/j.cryobiol.2021.11.179. Online ahead of print.ABSTRACTCryopreservation is a widely used long-term preservation method to ensure the quality and vitality of microbes in laboratories and biological resource facilities. However, freeze-thaw damage and osmotic pressure changes during cryopreservation adversely impacts microbial survival. Significant expenditure of resources and expertise are required to select the right cryoprotectant and optimize its concentration for maximum survival of diverse microorganisms. This work describes a cryopreservation method that obvi...
Source: Cryobiology - Category: Biology Authors: Source Type: research
Haematologica. 2021 Nov 25. doi: 10.3324/haematol.2021.279948. Online ahead of print.ABSTRACTVon Willebrand Factor (VWF) and Factor VIII (FVIII) circulate in a noncovalent complex in blood and promote primary haemostasis and clotting respectively. A new VWF A1-domain binding aptamer, BT200, demonstrated good subcutaneous bioavailability and a long half-life in non-human primates. This first-in-human, randomised, placebo-controlled, double-blind trial tested the hypothesis that BT200 is well tolerated and has favourable pharmacokinetic and pharmacodynamic effects in 112 volunteers. Participants received one of the following...
Source: Haematologica - Category: Hematology Authors: Source Type: research
Conclusion: OSA is the main reason for women visiting sleep unit. Their symptoms are differentiated when asked by the doctor compared to self -report and also according to age and OSA severity.
Source: European Respiratory Journal - Category: Respiratory Medicine Authors: Tags: Sleep and control of breathing Source Type: research
Soft Matter, 2021, Advance Article DOI: 10.1039/D1SM01334C, PaperP. V. Dolganov, A. S. Zverev, K. D. Baklanova, V. K. Dolganov Different coalescence regimes are observed for isotropic droplets in a nematic environment and nematic droplets in an isotropic environment in flat cells. Wetting conditions on the cell surfaces play a key role in the development of instabilities. To cite this article before page numbers are assigned, use the DOI form of citation above. The content of this RSS Feed (c) The Royal Society of Chemistry
Source: RSC - Soft Matter latest articles - Category: Chemistry Authors: Source Type: research
CONCLUSIONS: Release of VWF from endothelial cells opens the platelet-binding site, irrespective of the presence of flow. However, not all available platelet-binding sites are being occupied, suggesting some extent of regulation. Part of this regulation involves endothelial proteins that are co-secreted with VWF, like osteoprotegerin. This regulatory mechanism may be of more relevance under inflammatory conditions.PMID:34816579 | DOI:10.1111/jth.15598
Source: Thrombosis and Haemostasis - Category: Hematology Authors: Source Type: research
Conclusion: Our study revealed definite and significant presence of sleep problems in the children of South Kanara. Strong associations were observed between certain sleep practices and problems.
Source: Journal of Indian Society of Pedodontics and Preventive Dentistry - Category: Dentistry Authors: Source Type: research
More News: Babies | Bed Wetting | Chemistry | Enuresis | Nanotechnology