813 results match your criteria: "Technical University of Liberec[Affiliation]"
Comput Biol Med
September 2025
Department of Industrial Design, National Cheng Kung University, Tainan, 701, Taiwan. Electronic address:
The prevalence of dementia is increasing every year, with one person developing dementia every 3 s. Therefore, this study proposes a novel multi-sensory rehabilitation interactive game system (MRIGS), which uses grip assistive devices combined with different colors and tactile stimulation to achieve multi-sensory training effects of vision, hearing, and touch. This study involved 17 older adults (72.
View Article and Find Full Text PDFEnviron Pollut
September 2025
Hubei Key Laboratory of Wetland Evolution & Ecological Restoration, Wuhan Botanical Garden, Chinese Academy of Sciences, Wuhan, 430074, China; University of Chinese Academy of Sciences, Beijing, 100049, China; Key Laboratory of Lake and Watershed Science for Water Security, Nanjing Institute of Geog
Tire microplastics (TMPs) represent a major contributor to microplastic pollution, posing threats to aquatic ecosystems. As carbon-rich substrates, TMPs influence microbial colonization and ecological functions. This study investigates the impacts of pristine (P-TMPs) and scrap (S-TMPs) TMPs from the same brand on microbial communities within the tire-plastisphere.
View Article and Find Full Text PDFMicroorganisms
August 2025
Nelson Mandela African Institution of Science and Technology (NM-AIST), School for Materials, Energy, Water, Environmental Science and Engineering, Arusha P.O. Box 447, Tanzania.
The presence of radiotoxic uranium (U) in mineral fertilizers is of global concern. A pilot study was conducted in Tabora (Tanzania) to determine the release of U from three brands of phosphate fertilizers and its impact on soil bacteria. The experiment used three types of fertilizer: Minjingu Powder (MP), Nafaka Plus (NP), a mixed and granulated fertilizer made from Minjingu Phosphate Rock (MPR), and YaraMila Cereal (YC) fertilizer.
View Article and Find Full Text PDFPharmaceutics
August 2025
Faculty of Health Studies, Technical University of Liberec, 460 01 Liberec, Czech Republic.
Extracellular vesicles (EVs) are involved in cell-to-cell communication and delivery of signaling molecules and represent an interesting approach in targeted therapy. This project focused on EV-mediated facilitation and cell-specific delivery of effector antimiR molecules carried by biologically produced gold nanoparticles (AuNPs). First, we loaded EVs derived from cancer cells 4T1 with AuNPs-antimiR.
View Article and Find Full Text PDFMaterials (Basel)
August 2025
Faculty of Material Engineering and Physics, Cracow University of Technology, Jana Pawła II 37, 31-864 Cracow, Poland.
This article presents experimental studies on the characterization of geopolymer composites intended for applications in aquatic environments, with particular emphasis on underwater infrastructure. The motivation for conducting the research was the growing need to develop durable and ecological building materials that will be resistant to long-term exposure to moisture and aggressive chemical agents, typical for the underwater environment, where traditional cement concretes undergo gradual degradation due to long-term water impact, including hydrotechnical and underwater infrastructure. Geopolymer binders were produced based on metakaolin activated by alkaline solutions containing sodium hydroxide.
View Article and Find Full Text PDFMaterials (Basel)
August 2025
Department of Material Science, Faculty of Mechanical Engineering, Technical University of Liberec, Studentská 1402/2, 461 17 Liberec, Czech Republic.
This study investigates the effects of varying filler content on the thermal and mechanical performance of metakaolinite-based geopolymer composites designed for thermal energy storage applications. The composites were formulated using a geopolymer binder, combined with a thermally stable filler (ground chamotte) and a thermal energy storage filler (waste steel chips) in different proportions. Chamotte content within the binder matrix (binder + chamotte) ranged from 20 to 40 wt.
View Article and Find Full Text PDFMaterials (Basel)
August 2025
Department of Material Science and Manufacturing Technology, Faculty of Engineering, Czech University of Life Sciences Prague, Kamycka 129, Suchdol, 165 00 Prague, Czech Republic.
This study deals with the mechanical performance in the case of hybrid polymer composites developed from sandwiched reinforcements using natural fibre and glass fibre-based fabrics. The composites developed by using different combinations and arrangements of the glass and flax fabrics were tested for the interlaminar shear strength (ILSS). Finite element analysis based on ANSYS was used to determine the ILSS for the hybrid composites.
View Article and Find Full Text PDFInt J Mol Sci
August 2025
Department of Propaedeutic, Physical Diagnostics and Dental Physiotherapy, Faculty of Medicine and Dentistry, Pomeranian Medical University in Szczecin, 70-204 Szczecin, Poland.
This study evaluated the physicochemical and morphological properties of tooth enamel in patients with caries-predisposing SNPs (rs4694075 in and rs2337359 in genes), based on the DMFT index. We included 40 of 120 individuals (aged 19-43), collecting stimulated saliva and 58 healthy teeth extracted for orthodontic/surgical reasons. Saliva DNA was genotyped.
View Article and Find Full Text PDFAppl Environ Microbiol
August 2025
Department of Applied Biology, Institute for Nanomaterials, Advanced Technologies and Innovation, Technical University of Liberec, Liberec, Czech Republic.
Metamorphic Devonian rocks in the northern Moravian Jeseník district (Czech Republic) contain non-vein polymetallic, copper, and gold deposits. Sulfide leaching following previous mining activities has caused significant chemical and physical alterations in the local environment, resulting in biological process shifts. Here, we present a detailed microbiological survey of the Zlaté Hory mine and its adjacent features, including tailings, sediments, and treated mine water.
View Article and Find Full Text PDFMembranes (Basel)
July 2025
Faculty of Engineering in Earth Sciences, ESPOL Polytechnic University, Campus Gustavo Galindo, Km. 30.5 Vía Perimetral, Guayaquil 090902, Ecuador.
Groundwater is one of the main water sources for consumption, domestic use, agriculture, and tourism in coastal communities. However, high total dissolved solids (TDS) levels in the water (700-2000 mg L TDS) and electrical conductivity (3000-5000 µS cm) threaten the health and economic growth opportunities for residents. This research aims to evaluate the performance of a laboratory-scale electrodialysis system as a technology for desalinating brackish water.
View Article and Find Full Text PDFSci Rep
August 2025
Department of Technologies and Structures, Technical University of Liberec, Liberec, Czech Republic.
This study investigates and discusses the thread crimp in the jacquard woven two-dimensional (2D) fabrics. The study of thread crimp is important for technologists and weavers from a practical point of view, as it has a considerable influence on the behavior of the fabric during weaving on the weaving machine, and subsequently in the finishing process. The basis of the study is the creation of an analytical approach that allows estimating the thread crimp before weaving.
View Article and Find Full Text PDFWater Res
August 2025
Hubei Key Laboratory of Wetland Evolution & Ecological Restoration, Wuhan Botanical Garden, Chinese Academy of Sciences, Wuhan 430074, China; Key Laboratory of Lake and Watershed Science for Water Security, Wuhan Botanical Garden, Chinese Academy of Sciences, Wuhan, 430074, China; Danjiangkou Wetlan
Tire microplastics (TMPs) significantly contribute to global plastic pollution, entering aquatic environments primarily through runoff, where they pose potential threats to aquatic ecosystems. Beyond the particles themselves, TMPs-derived leachates further exacerbate environmental risks. Despite growing concern over plastic pollution, the influences of TMPs and their leachates on aquatic systems remain largely understudied.
View Article and Find Full Text PDFTalanta
July 2025
Charles University, Faculty of Pharmacy in Hradec Králové, Department of Analytical Chemistry, Ak. Heyrovského 1203, 500 05, Hradec Králové, Czech Republic. Electronic address:
New polyamide (PA) homopolymers and copolymers nanofibers with different alkyl chain lengths as novel materials have been investigated for the automation of on-line sample preparation step and extraction of polycyclic aromatic hydrocarbons (PAHs) from the environment. PA 4/6 nanofiber copolymer showed the highest extraction yield of tested analytes and comparable performance with commercial reversed phase C18 sorbent. Our study presents an automation of on-line solid phase extraction method coupled with ultra-high performance liquid chromatography with fluorescence detection for the analysis of nine PAHs in river water.
View Article and Find Full Text PDFJ Phycol
July 2025
Faculty of Science, Department of Botany, Charles University, Prague, Czech Republic.
We conducted a survey of Synurales diversity in Florida (United States), focusing on two established hotspots-Ocala National Forest and Myakka River State Park-and two previously unexplored sites-Manatee Lake and Lake Lee. Using transmission electron microscopy (TEM), we identified 69 species, increasing the total number recorded from Florida to 90. Among these, three species-Mallomonas cornea sp.
View Article and Find Full Text PDFGels
July 2025
Department of Material Engineering, Faculty of Textile Engineering, Technical University of Liberec, Studentská 1402/2, 46117 Liberec, Czech Republic.
Fiber-aerogel composites have gained significant attention as high-performance thermal insulation materials due to their unique microstructure, which suppresses conductive, convective, and radiative heat transfer. At room temperature, silica aerogels in particular exhibit ultralow thermal conductivity (<0.02 W/m·K), which is two to three times lower than that of still air (0.
View Article and Find Full Text PDFTalanta
July 2025
Charles University, Faculty of Pharmacy in Hradec Králové, Department of Analytical Chemistry, Akademika Heyrovského 1203, 50003, Hradec Králové, Czechia.
Automation and hyphenation of multiple steps were used for the sensitive determination of xenobiotic residues in surface waters. The online hyphenated sequential injection analysis instrumentation used surface-modified microfibrous sorbent for the effective solid phase extraction of 1.0 mL of sample into 100 μL zone, then subjected to the reversed-phase ultra-high performance liquid chromatography (SIA-SPE-UHPLC).
View Article and Find Full Text PDFACS Appl Mater Interfaces
July 2025
Institute of Macromolecular Chemistry of the Czech Academy of Sciences, Heyrovského nám. 2, 162 00 Prague 6, Czech Republic.
In the diagnostics of diabetes, specific targeting of drugs (e.g., liraglutide) to insulin-deficient β-cells with their simultaneous noninvasive imaging is currently needed.
View Article and Find Full Text PDFCent Eur J Public Health
June 2025
Department of Toxicology and Molecular Epidemiology, Institute of Experimental Medicine, Czech Academy of Sciences, Prague, Czech Republic.
Objectives: Nanotechnology is a fast-growing field in both science and industry. However, experimental studies brought warning data concerning the negative effect of engineered nanoparticle exposure leading to oxidative stress, inflammation, decreased immune cell viability, and genotoxicity. The consequences of human exposure may appear with decades of latency.
View Article and Find Full Text PDFBiotechnol Appl Biochem
August 2025
Department of Science and Research in Biomedical Applications, Faculty of Health Studies, Technical University of Liberec, Liberec, Czech Republic.
Appropriate in vitro systems are needed to evaluate effective strategies to prevent implant-associated infections, which remain a significant complication in today's medicine. Conventional in vitro models involving monocultures cannot fully reflect the tissue environment in vivo. Coculturing eukaryotic and prokaryotic pathogenic and commensal cells in in vitro models configured according to the needs of each tissue could better mimic complex tissue structures and actual clinical conditions.
View Article and Find Full Text PDFBioresour Technol
November 2025
Institute of Microbiology of the Czech Academy of Sciences, Vídeňská 1083, 142 00 Prague, Czech Republic. Electronic address:
Sulfamethoxazole (SMX) and its residues exhibit high environmental persistence due to their resistance to conventional degradation processes. The bacterial strain Kocuria rhizophila SA117, isolated from polluted soils, was characterized biochemically, phylogenetically, and -omically. Herein, we describe a complete degradation pathway for SMX and determine two putative pathways: cleavage of the benzene ring and the degradation of the substituted isoxazole, leading to the formation of non-toxic Krebs cycle metabolites.
View Article and Find Full Text PDFChild Care Health Dev
July 2025
Faculty of Physical Culture, Palacký University Olomouc, Olomouc, Czech Republic.
Background: Adolescents' movement behaviours (MB) vary between schooldays and weekends, potentially impacting health-related quality of life (HRQoL) and well-being. This study aimed to identify transitions between 24-h MB profiles on schooldays and weekends and examine their associations with HRQoL and well-being.
Methods: This is a cross-sectional study of 1070 Czech adolescents (average age: 13.
Materials (Basel)
June 2025
Department of Machine Parts and Mechanism, Faculty of Mechanical Engineering, Technical University of Liberec, Studentská 1402/2, 46117 Liberec, Czech Republic.
Geopolymer composite materials are a viable alternative to conventional construction materials. The research problem of geopolymer composites revolves around the imperative to comprehensively address their synthesis, structural performance, and environmental impact. The derived mathematical model facilitates precisely determining the optimal proportions of two crucial constituents in the geopolymer matrix: silica sand and secondary aluminum by-product.
View Article and Find Full Text PDFJ Hazard Mater
September 2025
Faculty of Sciences, Department of Microbiology, University of Granada, Granada, Spain.
One of the major challenges for future Deep Geological Repositories (DGRs) for radioactive waste is to ensure long-term safety over timescales exceeding 100,000 years. The effect of gamma radiation on bentonite microorganisms remains poorly understood, with even less research exploring its combined impact with other key repository conditions. This study investigates the combined effects of high bentonite compaction density (1.
View Article and Find Full Text PDFTrials
June 2025
Department of Clinical Pharmacy, Na Homolce Hospital, Prague, Czech Republic.
Introduction: Heart surgery is associated with a sternotomy in most patients. Low serum calcidiol level below 80 nmol/l carries the risk of bone loss as a risk factor in sternotomy healing.
Objectives: The primary objective was to compare postoperative complications of sternotomy healing in two groups of patients treated with cholecalciferol or placebo.
Sci Data
June 2025
Institute of New Technologies and Applied Informatics, Faculty of Mechatronics, Informatics and Interdisciplinary Studies, Technical University of Liberec, Liberec, 461 17, Czechia.
In silico analysis is key to understanding bone structure-function relationships in orthopedics and evolutionary biology, but its potential is limited by a lack of standardized, high-quality human bone morphology datasets. This absence hinders research reproducibility and the development of reliable computational models. To overcome this, BoneDat has been developed.
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