Resultados de investigación

Supplementary data: Briefly, lifetime dependence on power (Fig. S1), lifetime fitting components (Fig. S2), emission intensity according with the different measurements necessary to get pure PL QY (Fig. S3), explanation on the error bars of PL QY measurements, TEM images of CNDs (Fig. S4), Raman spectrum (Fig. S5), FTIR (Fig. S6), nitrogen absorption feature in N-doped CNDs (Fig. S7)., Peer reviewed

The resistance of an ordered 3D-Bi2Te3 nanowire nanonetwork was studied at low temperatures. Below 50 K the increase in resistance was found to be compatible with the Anderson model for localization, considering that conduction takes place in individual parallel channels across the whole sample. Angle-dependent magnetoresistance measurements showed a distinctive weak antilocalization characteristic with a double feature that we could associate with transport along two perpendicular directions, dictated by the spatial arrangement of the nanowires. The coherence length obtained from the Hikami–Larkin–Nagaoka model was about 700 nm across transversal nanowires, which corresponded to approximately 10 nanowire junctions. Along the individual nanowires, the coherence length was greatly reduced to about 100 nm. The observed localization effects could be the reason for the enhancement of the Seebeck coefficient observed in the 3D-Bi2Te3 nanowire nanonetwork compared to individual nanowires., No

According to the open access nature and its exceptions in the datasets regulation of the Call ERC-2021-ADG, and having reflected the following statements in the Data Management Plan of such project (ID: 101052603; POWERbyU; ERC-2021-ADG), the authors of the data associated with this publication state the following: The datasets associated with this publication will be available upon request, due to these datasets being subjected to Intellectual Property Restrictions; requests by externals for the use of these datasets will be approved by the project coordinator. Please, contact Prof. Marisol Martín-González: marisol.martin@csic.es This modus operandi will remain in effect, at least until the end of the project., This Dataset is referring to thefollowing study, which presents an approach for powering wearable sensors by integrating nanostructured bismuth telluride (Bi2Te3 and Te legs) into flexible polyester substrates. The choice of polyester as the substrate is because it is widely used in clothing, especially in items such as shirts, blouses, dresses, and sportswear. This enables seamless integration with wearable devices. By capturing wasted body heat, our small and flexible thermoelectric generators (TEGs) offer long-term operation without the need to plug the batteries. We demonstrate the feasibility of using commercially available polyester for reproducible electrochemical deposition of highly oriented Bi2Te3 and Te material. Through electrodeposition, we embed Bi2Te3 and Te legs within the flexible polyester, creating a cost-effective and easily scalable hybrid system for wearable energy harvesting. Our optimized TEG design, which can be worn on the arm or forehead, achieves impressive power density compared to existing state-of-the-art solutions. With a mere 3.5 °C temperature difference, only two pairs of p- and n-type legs, and a thickness of approximately 15 µm, our TEG generates a maximum open circuit voltage of ∼0.1 mV and a maximum power density of ∼0.04 mW·K-1·cm−2. With 250 pairs, 10 mV can be reached. This cost-effective design also integrates electrical contacts, surpassing previous flexible TEG performances. These advancements make our TEGs suitable for driving microwatt-level electronic sensors and open new avenues for efficient energy harvesting in wearable applications., We acknowledge the European Synchrotron Radiation Facility (ESRF) for provision of synchrotron radiation facilities under proposal number MA-4864 and we would like to thank Dr. Federico Monaco and Dr. Peter Cloetens for assistance and support in using beamline ID16A-NI. O.C-C would also like to acknowledge fruitful discussions with Dr. Germán Alcalá, David López Romero and the assistance with SEM images from Raquel Álvaro Bruna. The authors would like also to acknowledge the service from the MiNa Laboratory at IMN, and its funding from CM (project SpaceTec, S2013/ICE2822), MINECO (project CSIC13–4E-1794), and EU (FEDER, FSE). This work has been supported by the Ramon Areces Foundation through the micro-TENERGY project and by the ERC PowerbyU., No

According to the open access nature and its exceptions in the datasets regulation of the Call ERC-2021-ADG, and having reflected the following statements in the Data Management Plan of such project (ID: 101052603; POWERbyU; ERC-2021-ADG), the authors of the data associated with this publication state the following: The datasets associated with this publication will be available upon request, due to these datasets being subjected to Intellectual Property Restrictions; requests by externals for the use of these datasets will be approved by the project coordinator. Please, contact Prof. Marisol Martín-González: marisol.martin@csic.es This modus operandi will remain in effect, at least until the end of the project., Nanowires are excellent model systems for investigating the effects of low dimensionality in materials. Controlling the diameter of the nanowires, and hence its surface-to-volume ratio, the presence or relevance of surface-related characteristics can be addressed. This is of particular interest in the case of topological insulators owing to electronic surface states (topologically protected) independent from bulk states. Tetradymite chalcogenides Bi2Te3, Bi2Se3, and Sb2Te3 are small band gap semiconductors with wide application in state-of-the-art Peltier cooling devices or thermoelectric power generators. They are also strong 3D-topological insulator, with topologically protected states predicted to appear on any free surface regardless of the crystallographic orientation. This Dataset is referring to the following study, in which the resistance of an ordered 3D-Bi2Te3 nanowire nanonetwork was studied at low temperatures. Below 50 K the increase in resistance was found to be compatible with the Anderson model for localization, considering that conduction takes place in individual parallel channels across the whole sample. Angle-dependent magnetoresistance measurements showed a distinctive weak antilocalization characteristic with a double feature that we could associate with transport along two perpendicular directions, dictated by the spatial arrangement of the nanowires. The coherence length obtained from the Hikami–Larkin–Nagaoka model was about 700 nm across transversal nanowires, which corresponded to approximately 10 nanowire junctions. Along the individual nanowires, the coherence length was greatly reduced to about 100 nm. The observed localization effects could be the reason for the enhancement of the Seebeck coefficient observed in the 3D-Bi2Te3 nanowire nanonetwork compared to individual nanowires., The authors would like to acknowledge the financial support from the projects ERC Adv. POWERbyU 101052603, PID2020-118430GB-100, and PID2019-106165GB-C21 (MICINN) and project 2D-MESES from CSIC. This work was also cofinanced by the 2014–2020 ERDF Operational Programme and the Department of Economy, Knowledge, Business and University of the Regional Government of Andalusia, project reference no. FEDER-UCA18-107139. The authors would also like to acknowledge the service from the MiNa Laboratory at IMN, and its funding from CM (project SpaceTec, S2013/ICE2822), MINECO (project CSIC13-4E-1794), and EU (FEDER, FSE). F.P. acknowledges the support from ICREA Academia 2022 and 2021SGR00242, Generalitat de Catalunya., No

Datos de investigación: Bibliografía del proyecto "Al-Andalus and the Maghrib in the Islamic East: mobility, migration and memory", AMOI II (ref. PID2020-116680GB-I00), financiado por MICIN/AEI/10.13039/501100011033 y dirigido por Mayte Penelas y Maribel Fierro., Peer reviewed

Supporting file and references, Peer reviewed

[Objectives] Inflammatory biomarkers, as indicators of biological states, provide a valuable approach for accurate and reproducible measurements, crucial for the effective management of mild traumatic brain injury (mTBI) in pediatric patients. This study aims to assess the diagnostic utility of blood-based inflammatory markers IL6, IL8, and IL10 in children with mTBI, including those who did not undergo computed tomography (CT) scans., [Methods] A prospective multicentric cohort study involving 285 pediatric mTBI patients was conducted, stratified into CT-scanned and non-CT-scanned groups within 24 h post-trauma, alongside 74 control subjects. Biomarker levels were quantitatively analyzed using ELISA. Sensitivity and specificity metrics were calculated to determine the diagnostic efficacy of each biomarker., [Results] A total of 223 mTBI patients (78%) did not undergo CT scan examination but were kept in observation for symptoms monitoring at the emergency department (ED) for more than 6 h (in-hospital-observation patients). Among CT-scanned patients (n = 62), 14 (23%) were positive (CT+). Elevated levels of IL6 and IL10 were found in mTBI children compared to controls. Within mTBI patients, IL6 was significantly increased in CT+ patients compared to both CT– and in-hospital-observation patients. No significant differences were observed for IL8 among the compared groups. IL6 yielded a specificity of 48% in identifying CT– and in-hospital-observation patients, with 100% sensitivity in excluding all CT+ cases. These performances were maintained whether IL6 was measured within 6 h or within 24 h after the trauma., [Conclusion] The inflammatory marker IL6 emerges as a robust biomarker, showing promising stratification value for pediatric mTBI patients undergoing CT scans or staying in observation in a pediatric ED., Peer reviewed

Technical details for the experimental setups used to characterize the physicochemical properties of ZEO-1, along with the computational details for the DFT modeling; PXRD, nitrogen adsorption/desorption, TGA figures, and SEM images for different ZEO-1 samples synthesized under different conditions; 29Si, 27Al (1D and MQMAS), 31P, and 1H solid-state NMR results; in situ IR spectroscopy results illustrating the determination of the molar extinction coefficient of the 1545 cm–1 pyridinium band, comparison between the protonic form of ZEO-1 and its Cs form, and the series of spectra recorded after sending discrete monodoses of CO into the IR cell; DFT modeling figures presenting the relative stability of the ZEO-1 structure, the calculated aluminum distribution based on the Boltzmann distribution, and the relative deprotonation energy of all the bridging hydroxyl groups versus the Al positions; catalytic test results of the initial yields of the principal cracking products as a function of initial n-hexane conversion and the n-hexane conversion as a function of TOS for ZEO-1, Beta, and USY; T–O–T bond angles corresponding to the aluminum substitution for each T-atom within the ZEO-1 framework and its corresponding isotropic chemical shift; and relative stability of the modeled 21 anionic structures and 84 neutral structures with different locations of Al and of the charge-compensating proton around them., Peer reviewed

HERFD-XANES spectra taken at the maximum of Ru Lα1 emission line for the whole Ca3Mn2–xRuxO7 (0.05 ≤ x ≤ 0.9) samples at room temperature, k2-weighted EXAFS oscillations in k-space as a function of Ru concentration (x) at Mn K and Ru K edges, and detailed EXAFS analysis for the Ca3Mn2–xRuxO7 (0.1 ≤ x ≤ 0.7) series at the Mn and Ru K-edges., Peer reviewed

Sample description, electron microscopy images and analysis, XRD of time and temperature series, TEM and SEM images of annealed samples, FIB cross sections, and schematic of synchrotron experiment., Peer reviewed