Contamination of fabric surface by the particles woven from the cotton waste open end rotor yarn.

The study investigated and analyzed the contamination of the fabric surface due to cotton waste yarn woven into the weft. The impact of cotton waste proportion and cleaning methods on open-end rotor yarn quality, using blends from 100 to 0% cotton waste mixed with virgin cotton fibers were investigated. The study proves that cotton waste can be effectively incorporated into yarn production without significantly compromising fabric properties, supporting the sustainable use of recycled fibers.

An efficient sequential method for enhanced landfill leachate treatment and detoxification: Electrocoagulation/permanganate, peroxymonosulfate-based process, and electro-peroxone.

This study investigates the electrocoagulation/permanganate (EC/PM) process as a pre-treatment, followed by UV-activated peroxymonosulfate (PMS) and electro-peroxone (EP) treatments. This sequence is designed to effectively mineralize organic matter. Notably, PM was integrated into the EC process for the first time to enhance removal efficiency.

Effect of Cutting Conditions on the Size of Dust Particles Generated During Drilling of Carbon Fiber Reinforced Composite Systems.

The influence of machining parameters on the generation of dust particles during the machining of carbon fiber-reinforced polymer (CFRP) composites remains insufficiently understood. These particles, which stay suspended in the air, pose a serious health risk to operators. This study examined the effects of cutting conditions-specifically cutting speed, feed per tooth, and depth of cut-and the impact of delaminations formed during CFRP drilling on the size, shape, and quantity of hazardous dust particles.

Impact of fluoroquinolone and heavy metal pollution on antibiotic resistance maintenance in aquatic ecosystems.

Background: Freshwater pollution with compounds used during anthropogenic activities could be a major driver of antibiotic resistance emergence and dissemination in environmental settings. Fluoroquinolones and heavy metals are two widely used aquatic pollutants that show a high stability in the environment and have well-known effects on antibiotic resistance selection. However, the impact of these compounds on antibiotic resistance maintenance in aquatic ecosystems remains unknown.

Karaya and Kondagogu tree gum carbohydrate polymers: A sustainable source for biobased products.

Tree gums, classified as non-wood forest products (NWFPs), are becoming increasingly popular because of their substantial influence on the livelihoods of individuals in developing nations and their ability to enhance the well-being of locals. As food additives and frameworks for current and future non-food applications, tree-based carbohydrate gums are critical as sustainable, ecological, biodegradable, and recyclable materials. This review expounds on the crucial and assorted applications of gum Karaya (Sterculia urens; GK) and gum Kondagogu (Cochlospermum gossypium; KG) and their derivatives in nanoparticle synthesis, energy harvesting/storage, food packaging, hydrogel formulations, environmental bioremediation, and water purification.

Plastic degradation in Lake Geneva: Influence of depth, seasonal shifts, and bacterial community dynamics.

Aquatic ecosystems suffer disproportionately from plastic pollution given that they integrate material from terrestrial watersheds. Most studies on microbial colonisation and degradation of plastics have focused on marine environments, leaving a knowledge gap for freshwaters. Our study explores the possible degradation and the role of bacterial community composition of plastics in Lake Geneva.

Asparagine-modified magnetic graphene oxide as efficient green nanocatalyst for synthesis of chromenes and pyrano pyrazoles derivatives.

The primary focus of this study involved the fabrication of a novel nanocatalyst FeO-supported asparagine functionalized graphene oxide FeO@GO-N-(Asparagine). The catalyst was synthesized through a four-step procedure. The chemical composition of FeO@GO-N-(Asparagine) was examined using various analytical methods, including scanning electron microscopy (SEM), energy-dispersive X-ray (EDX), Fourier transform infrared spectroscopy (FTIR), thermogravimetric analysis (TGA) and a Raman.

Development of a Color-Changing Face Mask for Fever Detection Applications.

This study focused on developing a color-changing fabric face mask for fever detection. Reversible Thermochromic Leuco dye (RTL) was applied as an indicator to alert wearers of elevated body temperatures, with the color change occurring at 37.5 °C.

Bio-Based Poly(3-hydroxybutyrate) and Polyurethane Blends: Preparation, Properties Evaluation and Structure Analysis.

The present work deals with polymer blends produced from poly(3-hydroxybutyrate), P3HB and polyurethane. Linear polyurethane (PU) was here synthesized by reacting polypropylene glycol with 4,4'-diphenylmethane diisocyanate, and was used in amounts of 5, 10 and 15 wt. %.

In-situ investigation of real-world emissions from 111 measurements on solid fuel household boilers.

Over the years, emissions from significant stationary and mobile sources have significantly reduced, while solid fuel household combustion appliances have substantially contributed to air pollution. Growing evidence links residential solid fuel combustion to air pollution, prompting extensive studies on emissions. Field-based emission measurements provide more accurate characterisation of real-world emissions.

Study of luminescent yarns structure impact on light emission.

This study investigates and discusses the structure of the luminescent phosphorescent multifilament yarns to determine the effect of their external and internal structure geometry on the magnitude of light emission. The polyester luminescent multifilament yarns with the flat, textured, air textured and wraped were analyzed and compared in terms of their structure and the intensity of light emission. The light emission was evaluated based on the wavelength that corresponded to the maximum emission light signal.

Validation of Lipophosphonoxin-loaded Polycaprolactone Nanofiber Dressing for Full-thickness Wounds in a Porcine Model.

Background/aim: This study investigated the therapeutic potential of lipophosphonoxin (LPPO), an antibacterial agent, loaded into polycaprolactone nanofiber dressings (NANO-LPPO) for full-thickness wound healing. Using a porcine model, we aimed to assess the impact of areal weight of the dressing (10, 20 and 30 g/m) on wound-healing outcomes and validate findings from previous murine studies.

Materials And Methods: Full-thickness wounds were created on porcine skin and treated with the NANO-LPPO dressings of differing thickness.

Preparation and Characterization of Submicrometer and Nanometer Cellulose Fiber with Biogenic SiO.

This study aims to explore the feasibility of producing submicrometer and nanometer cellulose fibers derived from rice husk treated with a novel method which selectively eliminate hemicellulose and lignin, while maintaining the integrity of the cellulosic and silica constituents. Three distinct processing methods are tested to extract the nanocellulose, namely hand milling, ball milling, and wet milling using a high-shear wet media mill from Masuko Sangyo Co., Ltd.

Biomechanical comparison of screw position in variable angle locking plate in intra-articular calcaneal fractures: Cadaveric and radiologic study.

Background: Lateral plating of calcaneal fractures using variable-angle locking plates is still the golden standard for severely comminuted cases. The aim of this study is to explore the possibilities of improving stability of osteosynthesis by changing screw directions. It provides an assessment and comparison of cadaveric biomechanical experiment with retrospective radiologic data analysis.

Crayfish pet trade as a pathway for the introduction of known and novel viruses.

Expanding international pet trade has emerged as one of the main introduction pathways of aquatic invasive species, with ornamental crayfish species commonly available on the EU and global markets. Besides most frequently studied crayfish pathogens, such as Aphanomyces astaci and white spot syndrome virus (WSSV), ornamental crayfish carry associated microbial communities, which may potentially lead to the emergence of known or even novel diseases following intentional or unintentional release of animals into the wild. This is especially problematic in the case of viruses, which represent an important, yet considerably understudied, group of crayfish pathogens.

Autofluorescent Activity of Thermosensitive, Hemostatic, and Wound Healing Biopolymer Hydrogels.

Thermosensitive biopolymer gelatin-alginate hydrogels are promising for use as dressings for wound healing and drug delivery. This work presents fluorescence arising from the internal fluorophores of alginate and gelatin biopolymers in thermosensitive hydrogels modified with calcium- and sodium-containing humic acids before and after their impregnation with the hemostatic drug aminocaproic acid. A new approach of using fluorescence emission spectra, along with the analysis of morphological features, optical properties, and the elemental composition of dried hydrogels, is used as a tool for monitoring the ability of these hydrogels for the thermosensitive delivery of a hemostatic drug.

Synthesis of Bacterial Cellulose Aerogels and Their Effect on the Selected Properties.

Bacterial cellulose (BC) synthesized by has gained significant attention due to its unique structural and functional properties. This study focuses on the simple, facile, and cost-effective synthesis of bacterial cellulose films from and evaluates their impact on selected properties. The BC films were prepared through a series of controlled fermentation, purification, and drying processes, optimizing their porosity and structural integrity with different stabilization forms (the BC films supported by polyester nonwoven (PES NW) fabric) by a static culture method keeping with the sustainability.

A Deformational Analysis of a Titanium Alloy Supported by the Mathematical Modelling of the Sheet Metal Forming Process via Numerical Simulation.

The issue of the mathematical modelling of the deformation process nowadays affects an indispensable part of the industrial stamping production process. In view of this issue, this paper focuses on the research and analysis of the mechanical properties and stress-strain characteristics of the titanium alloy AMS4900. The investigated material properties and characteristics serve as input parameters defining the yield criterion in the environment of sheet metal forming process numerical simulations.

Fluorescent Nanoporous Materials from Polypropylene-Based Covalent Adaptable Networks.

Fluorescent polypropylene-based aerogels from thermoreversibly crosslinked networks have been developed. This facile and efficient synthesis results in low-cost, recyclable, chemically resistant, and highly porous functional materials. This process includes the chemical crosslinking of polypropylene, followed by thermal phase separation and freeze-drying, yielding aerogels with specific surface areas up to 200 m/g, according to nitrogen absorption-desorption measurements.

Release of Microplastic Fibers from Polyester Knit Fleece during Abrasion, Washing, and Drying.

Today, microplastics are found in soil, air, and all water sources, including rivers, groundwater, and treated drinking water, with the majority originating from wastewater produced during the washing process. The aim of this study is to determine how standard washing, drying, and wearing simulated by mechanical abrasion of 100% polyester multifilament fleece knitted fabrics contribute to the release and formation of microplastics and fibrous fragments by determining changes in their total weight, thickness, dimensions, and relative surface area. In addition, a new textile surface evaluation methodology was developed to assess the cover area (cover ratio) of released microplastic fibers trapped on the treated fabric surface.

Rhizodegradation of diesel and PAH contaminated soils with Miscanthus × giganteus: Soil, plants, microbes and pollutants interactions after two seasons.

Miscanthus × giganteus, a high-yielding perennial grass, has recently shown promise for phytomanagement of petroleum hydrocarbons (PHC) contaminated sites, however the mechanisms of plant-soil interactions are not clear. This study followed the second growing season of miscanthus cultivation on soil spiked with representatives of the most common PHC pollutants: diesel (dominantly aliphatic hydrocarbons), pyrene + phenanthrene (polycyclic aromatic hydrocarbons; PAH) and their mixture. Miscanthus demonstrated tolerance to PHC-contaminated soils, although high diesel concentrations significantly reduced biomass, limiting the overall benefits of cultivation.

Degradation of the mechanical properties of poly-lactide-caprolactone-collagen composite for pulmonary artery banding after implantation into a rat's peritoneum.

Pulmonary artery banding is a surgical procedure performed when there is a shunt between the left and right ventricle. Its aim is to constrict the lumen of the pulmonary artery by using a band to reduce blood flow to the lungs. In this study, we report the results of investigating the mechanical properties of a composite composed of poly(L-lactide-co-ε-caprolactone) layers and a collagen matrix (PLCL-COLL).

Microbial communities in low-pH concrete: Implications for deep geological radioactive waste repositories.

Deep geological repositories (DGRs), i.e., underground engineered structures designed to enclose radioactive waste, require strict safety regulations for long-term maintenance.

Ecological Implications of Germination Temperature on Native and Invasive Spp.

L. () is a non-native invasive plant in Czech mountain regions, altering ecosystem structure and function in protected areas. L.

Application of Polyurethane Foam as a Material for Reducing Vibration of Wheelchair User.

In this article, an attempt was made to model the body of a person moving in a passive manner (movement forced by another person) in a wheelchair. For this purpose, the Wan-Schimmels model was modified by 4 DOF, supplementing it with the weight of the wheelchair and a polyurethane cushion. The study was designed to test the effectiveness of utilizing a polyurethane cushion to reduce the whole-body vibration acting on a person while moving in a wheelchair.