Azo dyes are used as coloring agent in textile industries at larger scale. As a result, large quantity of dye-enriched waste water is generated which subsequently poses environmental problems. Biological tool involving bacteria having azoreductase enzyme has proved to be more effective and efficient in dye effluent treatment. Current work focuses on Staphylococcus caprae (S. caprae) for degradation and decolorization of Reactive Red-195 (RR-195) azo dye. For this purpose, factors such as pH, temperature, inoculums, carbon and nitrogen sources, and dye concentrations have been optimized for maximum decolorization and degradation. S. caprae (4 mg/mL) efficiently resulted into 90% decolorization of RR-195 dye under static condition at 100 μg/mL concentration, 30 °C and pH 7.0 at a 12-h contact period. FTIR analysis has revealed the formation of new functional groups in the treated dye such as O-H stretch at 3370 cm-1, C-H band stretching at 2928 cm-1, and new band at 1608 cm-1 which specify the degradation of aromatic ring, 1382 and 1118 cm-1 represents desulfonated peaks. Biodegraded metabolites of RR-195 dye such as phenol, 3, 5-di-tert-butylphenol, and phthalic acid have been identified respectively that find industrial applications. Phytotoxicity test has shown non-toxic effects of treated dye on germination of Vigna radiata and Triticum aestivum seeds. Further, antibiotic diffusion assay has confirmed the biosafety of S. caprae.

• MeSH
• azosloučeniny * metabolismus   toxicita   MeSH
• barvicí látky * metabolismus   MeSH
• biodegradace * MeSH
• chemické látky znečišťující vodu metabolismus   MeSH
• dusík metabolismus   MeSH
• koncentrace vodíkových iontů MeSH
• odpadní voda * mikrobiologie   chemie   MeSH
• průmyslový odpad MeSH
• Staphylococcus capitis metabolismus   izolace a purifikace   MeSH
• Staphylococcus metabolismus   MeSH
• teplota MeSH
• textilie MeSH
• textilní průmysl MeSH
• uhlík metabolismus   MeSH
• Publikační typ
• časopisecké články MeSH

UNLABELLED: Infection control measures to prevent viral and bacterial infection spread are critical to maintaining a healthy environment. Pathogens such as viruses and pyogenic bacteria can cause infectious complications. Viruses such as SARS-CoV-2 are known to spread through the aerosol route and on fomite surfaces, lasting for a prolonged time in the environment. Developing technologies to mitigate the spread of pathogens through airborne routes and on surfaces is critical, especially for patients at high risk for infectious complications. Multifunctional coatings with a broad capacity to bind pathogens that result in inactivation can disrupt infectious spread through aerosol and inanimate surface spread. This study uses C-POLAR, a proprietary cationic, polyamine, organic polymer with a charged, dielectric property coated onto air filtration material and textiles. Using both SARS-CoV-2 live viral particles and bovine coronavirus models, C-POLAR-treated material shows a dramatic 2-log reduction in circulating viral inoculum. This reduction is consistent in a static room model, indicating simple airflow through a static C-POLAR hanging can capture significant airborne particles. Finally, Gram-positive and Gram-negative bacteria are applied to C-POLAR textiles using a viability indicator to demonstrate eradication on fomite surfaces. These data suggest that a cationic polymer surface can capture and eradicate human pathogens, potentially interrupting the infectious spread for a more resilient environment. IMPORTANCE: Infection control is critical for maintaining a healthy home, work, and hospital environment. We test a cationic polymer capable of capturing and eradicating viral and bacterial pathogens by applying the polymer to the air filtration material and textiles. The data suggest that the simple addition of cationic material can result in the improvement of an infectious resilient environment against viral and bacterial pathogens.

• MeSH
• aerosoly MeSH
• Bacteria účinky léků   růst a vývoj   MeSH
• Coronavirus bovis účinky léků   MeSH
• COVID-19 * prevence a kontrola   MeSH
• fomity mikrobiologie   virologie   MeSH
• gramnegativní bakterie účinky léků   MeSH
• kationty * chemie   farmakologie   MeSH
• lidé MeSH
• polymery * farmakologie   chemie   MeSH
• SARS-CoV-2 * účinky léků   MeSH
• skot MeSH
• textilie mikrobiologie   virologie   MeSH
• zvířata MeSH
• Check Tag
• lidé MeSH
• skot MeSH
• zvířata MeSH
• Publikační typ
• časopisecké články MeSH

Péče o rány a podpora jejich hojení s využitím zdravotnických prostředků má nezastupitelné místo nejen v lékařské, ale také farmaceutické péči. Na českém trhu se lze setkat s celou řadou primárních a sekundárních krytí na rány, která se liší jak použitým materiálem, tak i tvarem a účelem použití. Cílem tohoto článku je klasifikovat jednu ze základních skupin těchto zdravotnických prostředků, a to gázová krytí, tradiční krytí z netkaného textilu a zdravotnické prostředky na bázi vaty. U každé podskupiny jsou pak shrnuta základní specifika daných prostředků včetně příkladů, které mají za úkol zlepšit orientaci farmaceuta nebo farmaceutického asistenta v široké škále nabízených produktů a usnadnit tak výběr správné pomůcky dle konkrétních potřeb pacienta.

Medical devices represent an essential aid in the process of wound healing. A wide range of primary and secondary wound dressings may be found at the Czech market. These products differ in the used material, shape and utilization. Therefore, the presented article aims to classify one of the fundamental groups of wound dressings, namely devices made of gauze, non-woven gauze, and cotton. The basic specifics, including examples, are summarized for each subgroup of medical devices utilized in wound healing. The provided information should assist the pharmacist or pharmaceutical assistant in selecting the most suitable one to cover patient needs.

• Klíčová slova
• gáza, vata,
• MeSH
• hojení ran * MeSH
• lidé MeSH
• obvazy MeSH
• textilie MeSH
• zdravotnické prostředky * klasifikace   MeSH
• Check Tag
• lidé MeSH

This paper introduces a novel technique to evaluate comfort properties of zinc oxide nanoparticles (ZnO NPs) coated woven fabrics. The proposed technique combines artificial neural network (ANN) and golden eagle optimizer (GEO) to ameliorate the training process of ANN. Neural networks are state-of-the-art machine learning models used for optimal state prediction of complex problems. Recent studies showed that the use of metaheuristic algorithms improve the prediction accuracy of ANN. GEO is the most advanced methaheurstic algorithm inspired by golden eagles and their intelligence for hunting by tuning their speed according to spiral trajectory. From application point of view, this study is a very first attempt where GEO is applied along with ANN to improve the training process of ANN for any textiles and composites application. Furthermore, the proposed algorithm ANN with GEO (ANN-GEO) was applied to map out the complex input-output conditions for optimal results. Coated amount of ZnO NPs, fabric mass and fabric thickness were selected as input variables and comfort properties were evaluated as output results. The obtained results reveal that ANN-GEO model provides high performance accuracy than standard ANN model, ANN models trained with latest metaheuristic algorithms including particle swarm optimizer and crow search optimizer, and conventional multiple linear regression.

• MeSH
• Accipitridae * MeSH
• algoritmy MeSH
• neuronové sítě MeSH
• oxid zinečnatý * MeSH
• propylaminy MeSH
• sulfidy MeSH
• textilie MeSH
• zvířata MeSH
• Check Tag
• zvířata MeSH
• Publikační typ
• časopisecké články MeSH
• práce podpořená grantem MeSH

Nonwoven textiles are used extensively in the field of medicine, including wound healing, but these textiles are mostly from conventional nondegradable materials, e.g., cotton or synthetic polymers such as polypropylene. Therefore, we aimed to develop nonwoven textiles from hyaluronan (HA), a biocompatible, biodegradable and nontoxic polysaccharide naturally present in the human body. For this purpose, we used a process based on wet spinning HA into a nonstationary coagulation bath combined with the wet-laid textile technology. The obtained HA nonwoven textiles are soft, flexible and paper like. Their mechanical properties, handling and hydration depend on the microscale fibre structure, which is tuneable by selected process parameters. Cell viability testing on two relevant cell lines (3T3, HaCaT) demonstrated that the textiles are not cytotoxic, while the monocyte activation test ruled out pyrogenicity. Biocompatibility, biodegradability and their high capacity for moisture absorption make HA nonwoven textiles a promising material for applications in the field of wound healing, both for topical and internal use. The beneficial effect of HA in the process of wound healing is well known and the form of a nonwoven textile should enable convenient handling and application to various types of wounds.

• MeSH
• buňky 3T3 MeSH
• hojení ran * MeSH
• kyselina hyaluronová chemie   MeSH
• lidé MeSH
• myši MeSH
• obvazy * MeSH
• testování materiálů * MeSH
• textilie * MeSH
• zvířata MeSH
• Check Tag
• lidé MeSH
• myši MeSH
• zvířata MeSH
• Publikační typ
• časopisecké články MeSH
• práce podpořená grantem MeSH

Textile-based implant (mesh) treatment is considered as a standard of care for abdominal wall hernia repair. Computational models and simulations have appeared as one of the most promising approach to investigate biomechanics related to hernia repair and to improve clinical outcomes. This paper presents a novel anisotropic hypo-elastoplastic constitutive model specifically established for surgical knitted textile implants. The major mechanical characteristics of these materials such as anisotropy and permanent set have been reproduced. For the first time ever, we report an extensive mechanical characterization of one of these meshes, including cyclic uniaxial tension, planar equibiaxial tension and plunger type testing. These tests highlight the complex mechanical behavior with strong nonlinearity, anisotropy and permanent set. The novel anisotropic hypo-elasto-plastic constitutive model has been identified based on the tensile experiments and validated successfully against the data of the plunger experiment. In the future, implementation of this characterization and modeling approach to additional surgical knitted textiles should be the direction to follow in order to develop clinical decision support software for abdominal wall repair.

• MeSH
• chirurgické síťky * MeSH
• lidé MeSH
• operace kýly MeSH
• protézy a implantáty MeSH
• testování materiálů MeSH
• textilie MeSH
• ventrální hernie * MeSH
• Check Tag
• lidé MeSH
• Publikační typ
• časopisecké články MeSH
• práce podpořená grantem MeSH

Laser ablation in liquid (LAL), one of the attractive methods for fabrication of nanoparticles, was used for the modification of carbon cloth (CC) by deposition of palladium nanoparticles (Pd NPs); a simple stirring method was deployed to deposit Pd NPs on the CC surface. Characterization techniques viz X-ray diffraction (XRD), Fourier transform infrared (FT-IR), scanning electron microscope (SEM), energy-dispersive X-ray spectrometry (EDS) and inductively coupled plasma atomic emission spectroscopy (ICP-AES) were applied to study the surface of the ensuing samples which confirmed that LAL technique managed to fabricate and deposit the Pd NPs on the surface of CC. In addition, the catalytic prowess of the carbon cloth-Pd NPs (CC/Pd NPs) was investigated in the NaBH4- or HCOOH-assisted reduction of assorted environmental pollutants in aqueous medium namely hexavalent chromium [Cr(VI)], 4-nitrophenol (4-NP), congo red (CR) and methylene blue (MB). The CC/Pd NPs system has advantages such as high stability/sustainability, high catalytic performance and easy reusability.

• MeSH
• chemické látky znečišťující vodu analýza   chemie   MeSH
• chrom MeSH
• katalýza MeSH
• Kongo červeň MeSH
• kovové nanočástice chemie   MeSH
• lasery MeSH
• methylenová modř chemie   MeSH
• nitrofenoly MeSH
• palladium chemie   MeSH
• spektrometrie rentgenová emisní MeSH
• spektroskopie infračervená s Fourierovou transformací MeSH
• textilie MeSH
• uhlík MeSH
• Publikační typ
• časopisecké články MeSH

BACKGROUND: There is an urgent need to develop better materials to provide anatomical support to the pelvic floor without compromising its function. OBJECTIVE: Our aim was to assess outcomes after simulated vaginal prolapse repair in a sheep model using three different materials: (1) ultra-lightweight polypropylene (PP) non-degradable textile (Restorelle) mesh, (2) electrospun biodegradable ureidopyrimidinone-polycarbonate (UPy-PC), and (3) electrospun non-degradable polyurethane (PU) mesh in comparison with simulated native tissue repair (NTR). These implants may reduce implant-related complications and avoid vaginal function loss. DESIGN, SETTING, AND PARTICIPANTS: A controlled trial was performed involving 48 ewes that underwent NTR or mesh repair with PP, UPy-PC, or PU meshes (n=12/group). Explants were examined 60 and 180 d (six per group) post-implantation. INTERVENTION: Posterior rectovaginal dissection, NTR, or mesh repair. OUTCOME MEASUREMENTS AND STATISTICAL ANALYSIS: Implant-related complications, vaginal contractility, compliance, and host response were assessed. Power calculation and analysis of variance testing were used to enable comparison between the four groups. RESULTS: There were no visible implant-related complications. None of the implants compromised vaginal wall contractility, and passive biomechanical properties were similar to those after NTR. Shrinkage over the surgery area was around 35% for NTR and all mesh-augmented repairs. All materials were integrated well with similar connective tissue composition, vascularization, and innervation. The inflammatory response was mild with electrospun implants, inducing both more macrophages yet with relatively more type 2 macrophages present at an early stage than the PP mesh. CONCLUSIONS: Three very different materials were all well tolerated in the sheep vagina. Biomechanical findings were similar for all mesh-augmented repair and NTR. Constructs induced slightly different mid-term inflammatory profiles. PATIENT SUMMARY: Product innovation is needed to reduce implant-related complications. We tested two novel implants, electrospun and an ultra-lightweight polypropylene textile mesh, in a physiologically relevant model for vaginal surgery. All gave encouraging outcomes.

• MeSH
• biokompatibilní materiály MeSH
• chirurgické síťky * MeSH
• gynekologické chirurgické výkony MeSH
• modely nemocí na zvířatech MeSH
• modely u zvířat MeSH
• ovce MeSH
• polypropyleny * MeSH
• prolaps dělohy chirurgie   MeSH
• protézy - design MeSH
• pyrimidinony MeSH
• testování materiálů MeSH
• textilie MeSH
• výsledek terapie MeSH
• zvířata MeSH
• Check Tag
• ženské pohlaví MeSH
• zvířata MeSH
• Publikační typ
• časopisecké články MeSH
• hodnotící studie MeSH
• práce podpořená grantem MeSH

A proper attitude towards clothing close to the end of its life cycle and optimal post-consumer textile disposal behaviour have a potential to cause less environmental damage in both global and local perspectives. Only limited data on consumer behaviour toward textile products, textile waste and its passage to municipal waste streams are available in the Czech Republic. This paper reports on a survey conducted among 1046 respondents, attempting to identify differences in consumer behaviour towards textile products using advanced statistical methods. The results suggest that gender, age, education, income, and number of household members are statistically significant demographic characteristics for textile waste separation, while the number of children is not significant.

• MeSH
• chování spotřebitelů MeSH
• dítě MeSH
• lidé MeSH
• postoj * MeSH
• průzkumy a dotazníky MeSH
• textilie * MeSH
• Check Tag
• dítě MeSH
• lidé MeSH
• Publikační typ
• časopisecké články MeSH
• Geografické názvy
• Česká republika MeSH

V tomto článku jsou přehledně uvedeny základní pojmy skladby textilií a představeny hlavní oděvní materiály. Finálními úpravami lze pak dosáhnout optimálních vlastností. Autoři poskytují výčet důležitých požadavků na oděvy pro kožně nemocné a uvádí návrhy na řešení tohoto úkolu.

This article gives an overview of the basic concepts of the textiles composition and introduces the main clothing materials. Optimal properties can be achieved by final adjustments of the product. The authors provide a list of important requirements for the clothing of dermatologic patients and give some suggestion for addressing these requirements.

• MeSH
• dermatologie MeSH
• kožní nemoci * MeSH
• lidé MeSH
• textilie * analýza   klasifikace   MeSH
• Check Tag
• lidé MeSH
• Publikační typ
• práce podpořená grantem MeSH