38 results match your criteria: "Tallinn University of Technology (Taltech)[Affiliation]"
Front Digit Health
December 2024
Department of Health Technologies, TalTech, Tallinn, Estonia.
Introduction: Ecosystem-centered healthcare innovations, such as digital health platforms, patient-centric records, and mobile health applications, depend on the semantic interoperability of health data. This ensures efficient, patient-focused healthcare delivery in a mobile world where citizens frequently travel for work and leisure. Beyond healthcare delivery, semantic interoperability is crucial for secondary health data use.
View Article and Find Full Text PDFBMC Health Serv Res
December 2024
Faculty of Medicine and Health Sciences, Department of Health, Medicine and Caring Sciences, Linköping University, Linköping, 581 83, Sweden.
Background: The transfer of innovations into healthcare is laden with challenges. Although healthcare professionals are expected to adopt and fulfil new policies, a more person-centered healthcare with conditions for preference-based patient participation is anticipated.
Methods: The aim of the study was to evaluate two implementation strategies for person-centered patient participation in kidney care, including dissemination of a clinical toolkit, and additional training and support of internal facilitators.
ACS Omega
November 2024
Department of Chemistry and Biotechnology, Tallinn University of Technology (TalTech), Akadeemia tee 15, 12618 Tallinn, Estonia.
In this study, we explored the selectivity of softwood lignin toward esterification through chloromethylation. Organosolv pine lignin chloromethylated by a novel greener protocol was subjected to esterification with decanoic acid (C10), tetradecanoic acid (C14), and stearic acid (C18). The success of lignin esterification was confirmed by using FTIR and NMR spectroscopy.
View Article and Find Full Text PDFBioinspir Biomim
November 2024
Centre for Biorobotics, School of IT, Department of Computer systems, Tallinn University of Technology (Taltech), Tallinn, Estonia.
Locomotion on soft yielding grounds is more complicated and energetically demanding than on hard ground. Wet soft ground (such as mud or snow) is a particularly difficult substance because it dissipates energy when stepping and resists extrusion of the foot. Sinkage in mud forces walkers to make higher steps, thus, to spend more energy.
View Article and Find Full Text PDFBiomolecules
October 2024
Department of Chemistry and Biotechnology, Tallinn University of Technology (TalTech), Akadeemia tee 15, 12618 Tallinn, Estonia.
Poly(ADP-ribose) polymerases (PARPs) are crucial nuclear proteins that play important roles in various cellular processes, including DNA repair, gene transcription, and cell death. Among the 17 identified PARP family members, PARP1 is the most abundant enzyme, with approximately 1-2 million molecules per cell, acting primarily as a DNA damage sensor. It has become a promising biological target for anticancer drug studies.
View Article and Find Full Text PDFACS Appl Mater Interfaces
October 2024
Microcellular Plastics Manufacturing Laboratory, Department of Mechanical and Industrial Engineering, University of Toronto, Toronto, Ontario, Canada, M5S 3G8.
This study addresses the inherent fragility and fractal limitations of traditional silica aerogels by developing a bio-templated aerogel fiber. Integrating cellulose nanofibers (CNFs), thermoplastic polyurethane (TPU), and silica aerogel (SA) in a dimethyl sulfoxide (DMSO) dispersion, a gel-spinning technique was employed to create aerogel fibers with superior thermomechanical performance. CNF also provided excellent rheological modification for successful spinnability, fast gelation, and fiber formation.
View Article and Find Full Text PDFACS Omega
September 2024
Department of Chemistry and Biotechnology, Tallinn University of Technology (TalTech), 15 Akadeemia Road, 12618 Tallinn, Estonia.
The ongoing demand for effective antimicrobial materials persists, and lignin emerges as a promising natural antibacterial material with renewable properties. The adaptability of lignin to various chemical modifications offers avenues to enhance its antimicrobial activity. Here, we employed chloromethylation and subsequent functionalization with variable tertiary alkyl dimethyl amines to produce C6-C18 quaternary ammonium lignins (QALs) from hardwood (aspen), softwood (pine), and grass (barley straw).
View Article and Find Full Text PDFFront Med (Lausanne)
July 2024
Department of Health Technologies, TalTech, Tallinn, Estonia.
Introduction: This paper addresses the dilemmas of accessibility, comprehensiveness, and ownership related to health data. To resolve these dilemmas, we propose and justify a novel, globally scalable reference architecture for a Personal Health Data Space (PHDS). This architecture leverages decentralized content-addressable storage (DCAS) networks, ensuring that the data subject retains complete control and ownership of their personal health data.
View Article and Find Full Text PDFJ Acoust Soc Am
July 2024
Department of Mechanical and Industrial Engineering, Tallinn University of Technology-TalTech, Tallinn, 19086, Estonia.
Thermoacoustic waveguides are systems of hollow tubes and thermally graded porous segments that can operate as active materials where acoustic waves receive energy from an external heat source. This work demonstrates that by adjusting the pore geometry several unique low-frequency propagation features arise from the complex-valued band structure of periodic thermoacoustic waveguides that reflect into the acoustic pressure field within finite-length systems. Numerical methods have been employed to model waveguides with porous segments constituted by cylindrical inclusions (parallel pins).
View Article and Find Full Text PDFSci Rep
June 2024
Institute of Technology, University of Tartu, Nooruse 1, 50411, Tartu, Estonia.
In advanced drug delivery, versatile liposomal formulations are commonly employed for safer and more accurate therapies. Here we report a method that allows a straightforward production of synthetic monodisperse (~ 100 μm) giant unilamellar vesicles (GUVs) using a microfluidic system. The stability analysis based on the microscopy imaging showed that at ambient conditions the produced GUVs had a half-life of 61 ± 2 h.
View Article and Find Full Text PDFAnal Chem
June 2024
Department of Chemistry and Biotechnology, Tallinn University of Technology (TalTech), Akadeemia tee 15, Tallinn 12618, Estonia.
Droplet-based methods for optical biodetection enable unprecedented high-throughput experimental parameters. The methods, however, remain underused due to the accompanying multidisciplinary and complicated experimental workflows. Here, we provide a tutorial for droplet-based optical biodetection workflows with a focus on the key aspect of label selection.
View Article and Find Full Text PDFChemSusChem
April 2024
Department of Chemistry and Biotechnology, Tallinn University of Technology (TalTech), Akadeemia tee 15, 12618, Tallinn, Estonia.
Invited for this issue's cover are researchers from Tallinn University of Technology (TalTech). The image depicts the lignin chemical evolution route from raw biomass through a greener chloromethylation procedure developed by the research team. It showcases the transformation into lignin-supported metal nanoparticles, serving as a catalyst for various chemical reactions in both batch and continuous flow conditions.
View Article and Find Full Text PDFFEMS Microbes
February 2024
TFTAK, Mäealuse 2/4B, 12618 Tallinn, Estonia.
Adequate consumption of fiber has a positive effect on health. The crossover study examined the effect of a pectin-enriched smoothie on gut microbiota and health parameters. During 3 weeks, 31 adults consumed two smoothies (11.
View Article and Find Full Text PDFChemSusChem
April 2024
Department of Chemistry and Biotechnology, Tallinn University of Technology (TalTech), Akadeemia tee 15, 12618, Tallinn, Estonia.
We present a novel, greener chloromethylation procedure for organosolv aspen lignin under mild reaction conditions without Lewis acid as a catalyst and in acetic acid as a solvent. This synthetic protocol provides a reliable approach to chloromethylated lignin (CML) and means to obtain valuable lignin derivatives. The resulted CML was subsequently transformed into 1-methylimidazolium lignin (ImL), which effectively serves as a stabilizing agent for Pd/CuO nanoparticles (Pd/CuO-NPs).
View Article and Find Full Text PDFMagn Reson Chem
March 2024
Institute of Quantum Optics, University Ulm, Ulm, Germany.
Solid state NMR is widely used to study the orientation and other structural features of proteins and peptides in lipid bilayers. Using data obtained by PISEMA (Polarization Inversion Spin Exchange at Magic Angle) experiments, periodic spectral patterns arise from well-aligned α-helical molecules. Significant problems in the interpretation of PISEMA spectra may arise for systems that do not form perfectly defined secondary structures, like α-helices, or the signal pattern is disturbed by molecular motion.
View Article and Find Full Text PDFSensors (Basel)
September 2023
Eesti Lairiba Arenduse Sihtasutus (ELASA), Narva maantee 5, 10117 Tallinn, Estonia.
Performing 5G coverage planning across borders introduces real-life challenges related to legalities, intercountry agreements, and binding documents. This work provides RF network modelling exercise results to provide uninterrupted 5G coverage to the Via Baltica and Rail Baltica transport corridors crossing Estonia and Latvia and on the border with Lithuania, as well as the Tallinn-Tartu-Valga and Valka-Valga roads (Latvia-Estonia), capable of cross-border 5G services. The study starts by identifying and interviewing stakeholders from different sectors of operation in the Baltic states and Europe and then provides an overview of some of the main legal acts and documents regulating the electronic communications sector in the Baltic states and Europe.
View Article and Find Full Text PDFBMC Nephrol
September 2023
Department of Health, Medicine and Caring Sciences, Linköping University, 581 83, Linköping, Sweden.
3D Print Addit Manuf
August 2023
Department of Mechanical and Industrial Engineering, Tallinn University of Technology (TalTech), Tallinn, Estonia.
Commercially pure (cp) molybdenum (Mo) is one of the high-temperature materials of immense potential. It has a body-centered cubic (bcc) structure so it is hard to fabricate using nonequilibrium processes such as the selective laser melting (SLM) without the formation of cracks due to its inherent brittleness. This study deals with the fabrication of dense and near crack-free cp-Mo samples produced by the SLM.
View Article and Find Full Text PDFInt J Med Inform
September 2023
School of Natural Sciences and Health, Tallinn University, Narva mnt. 25, 10120, Tallinn, Estonia. Electronic address:
Background: The condition of fatigue is a complex and multifaceted disorder that encompasses physical, mental, and psychological dimensions, all of which contribute to a decreased quality of life. Smartphone-based systems are gaining significant research interest due to their potential to provide noninvasive monitoring and diagnosis of diseases.
Objective: This paper studies the feasibility of using smartphones to collect motor skill related data for machine learning based fatigue detection.
Sensors (Basel)
May 2023
Thomas Johann Seebeck Department of Electronics, Tallinn University of Technology (TalTech), Ehitajate tee 5, 19086 Tallinn, Estonia.
Molecules
May 2023
Department of Chemistry and Biotechnology, Tallinn University of Technology (TalTech), 12618 Tallinn, Estonia.
The solubilization capacity of a series of sustainable phenylalanine-derived surface-active ionic liquids (SAILs) was evaluated towards polycyclic aromatic hydrocarbons-naphthalene, anthracene and pyrene. The key physico-chemical parameters of the studied systems (critical micelle concentration, spectral properties, solubilization parameters) were determined, analyzed and compared with conventional cationic surfactant, CTABr. For all studied PAH solubilization capacity increases with extension of alkyl chain length of PyPheOC SAILs reaching the values comparable to CTABr for SAILs with n = 10-12.
View Article and Find Full Text PDFSensors (Basel)
April 2023
Vediafi Ltd., Valimotie 13A, 00380 Helsinki, Finland.
This paper provides a study of the different alternatives that are being considered in the 5G-ROUTES project to establish seamless 5G connectivity in a maritime environment both from an architectural point of view and also from the definition of field trials to evaluate the performance and dependability of the proposed solution. As expected, the main challenge in providing 5G connectivity on the sea is to provide coverage over large areas of open water. Thus, as a starting point, this paper presents a measurement campaign that was conducted to assess the current coverage in the Baltic Sea, which concluded that the current terrestrial networks cannot guarantee sufficient coverage.
View Article and Find Full Text PDFEnviron Pollut
April 2023
International Laboratory for Air Quality and Health, School of Earth and Atmospheric Sciences, Faculty of Science, Queensland University Technology, 2 George Street, Brisbane, Queensland, 4001, Australia; Global Centre for Clean Air Research, Department of Civil and Environmental Engineering, Faculty of Engineering and Physical Sciences, University of Surrey, Guildford, Surrey, United Kingdom.
PM-associated potential toxic elements (PTEs) can enter the respiratory system and cause health problems. In the current study, the health risk indices caused by PM inhalation by adults, children, and infants in 158 European cities between 2013 and 2019 were studied to determine if Europeans were adversely affected by carcinogenic and non-carcinogenic factors or not. The Mann-Kendall trend test examined PM's increasing or decreasing trend.
View Article and Find Full Text PDFMolecules
January 2023
Institute of Organic Chemistry NAS of Ukraine, Akademika Kuharya Str., 5, 02660 Kyiv, Ukraine.
A practical method of selective alkylation of the third hydroxyl group of disubstituted -butyl-calix[4]arenes using anhydrous barium hydroxide as a base was developed in this study. The use of this method in the synthesis of inherently chiral derivatives is shown herein.
View Article and Find Full Text PDFAnal Chem
January 2023
Institute of Physical Chemistry, Polish Academy of Sciences, Kasprzaka 44/52, 01-224 Warsaw, Poland.
Water-in-oil droplet microfluidics promises capacity for high-throughput single-cell antimicrobial susceptibility assays and investigation of drug resistance mechanisms. Every droplet must serve as an isolated environment with a controlled antibiotic concentration in such assays. While technologies for generation, incubation, screening, and sorting droplets mature, predictable retention of active molecules inside droplets remains a major outstanding challenge.
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