The condition was studied of the dynamic surface tension of biologic fluids in patients with rheumatoid arthritis using a method of maximum pressure in the vesicle with the aid of computerized tensiometer MPT-1 "Lauda" (Germany). Rise in indices of blood serum surface tension with diminution of the slope of tensiogram curves may suggest the development of pathology of the heart and liver, while increase in the same parameters of urine might be indicative of the coming nephropathy.
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Langmuir
January 2025
School of Chemical Engineering, Department of Chemistry and Materials Science, Aalto University, Tietotie 3 Espoo 02150, Finland.
Superhydrophobic surfaces find applications in numerous biomedical scenarios, requiring the repellence of biofluids and biomolecules. Plastron, the trapped air between a superhydrophobic surface and a wetting liquid, plays a pivotal role in biofluid repellency. A key challenge, however, is the often short-lived plastron stability in biofluids and the lack of knowledge surrounding it.
View Article and Find Full Text PDFEnviron Technol
January 2025
Department of Civil Engineering, The University of Hong Kong, Hong Kong SAR, People's Republic of China.
The remediation of oil-contaminated soil poses significant environmental challenges, often necessitating innovative approaches for effective and sustainable solutions. This study focuses on the synthesis, characterisation, and application of biodegradable capsules loaded with surfactant for enhanced oil remediation of a clean sand. By controlling the release properties of capsules, the research aims to overcome the limitations of conventional surfactant-based remediation methods, such as rapid washout and reduced efficacy over time.
View Article and Find Full Text PDFChempluschem
January 2025
Kaiserslautern University of Technology: Rheinland-Pfalzische Technische Universitat Kaiserslautern-Landau, Chemistry, 67663, Kaiserslautern, GERMANY.
We report the synthesis of a series of detergents with a lactobionamide polar head group and a tail containing four to seven perfluorinated carbon atoms. Critical micellar concentrations (CMCs) were determined using isothermal titration calorimetry (ITC) and surface tension (SFT) measurements, showing a progressive decrease from 27 mM to about 0.2 mM across the series.
View Article and Find Full Text PDFLangmuir
January 2025
Department of Physics, Chair of Biophysics, Friedrich-Alexander-Universität Erlangen-Nürnberg, Henkestrasse 91, Erlangen 92054, Germany.
The term "aerophilic surface" is used to describe superhydrophobic surfaces in the Cassie-Baxter wetting state that can trap air underwater. To create aerophilic surfaces, it is essential to achieve a synergy between a low surface energy coating and substrate surface roughness. While a variety of techniques have been established to create surface roughness, the development of rapid, scalable, low-cost, waste-free, efficient, and substrate-geometry-independent processes for depositing low surface energy coatings remains a challenge.
View Article and Find Full Text PDFJPRAS Open
March 2025
Plastic and Reconstructive Surgery Department, Alfred Health.
The design and implementation of successful rotational flaps of the scalp remains a complex process. There are several described techniques, all of which are based on a two-dimension surface, absent consideration of the convexity, and thereby three-dimensional nature of the scalp. This has contributed to flaps that are either too small or unnecessarily large in a bid to compensate.
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