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Low-Cost and Biodegradable Thermoelectric Devices Based on van der Waals Semiconductors on Paper Substrates

Energy & Environmental Materials 2024年第1期7卷 201-206页

作者： Gulsum Ersu Carmen Munuera Federico J.Mompean Daniel Vaquero Jorge Quereda João Elias F.S.rodrigues jose A.Alonso eduardo flores.jose r.ares Isabel J.Ferrer Abdullah M.Al-Enizi Ayman Nafady Sruthi Kuriakose Joshua O.Island Andres Castellanos-Gomez Materials Science Factory Instituto de Ciencia de Materiales de Madrid(ICMM-CSIC)Madrid E-28049Spain Nanotechnology Group USAL-NanolabUnivesidad de SalamancaSalamanca Junta de Castilla y León 37007Spain GISC Departamento de Física de MaterialesUniversidad Complutense de MadridMadrid E-28040Spain Departamento de Física Aplicada Centro de Investigación y Estudios AvanzadosMérida 97310Mexico MIrE Group Departamento de Física de MaterialesUniversidad Autónoma de MadridMadrid E-28049Spain Instituto Nicolás Cabrera Universidad Autónoma de MadridMadrid E-28049Spain Department of Chemistry College of ScienceKing Saud UniversityRiyadh 11451Saudi Arabia Department of Physics and Astronomy University of Nevada Las VegasLas Vegas NV 89154USA

We present a method to fabricate handcrafted thermoelectric devices on standard office paper *** devices are based on thin films of WS_(2),Te,and BP(P-type semiconductors)and TiS_(3)and TiS_(2)(N-type semiconductors),deposited by simply rubbing powder of these materials against *** thermoelectric properties of these semiconducting films revealed maximum Seebeck coefficients of(+1.32±0.27)mV K^(-1)and(-0.82±0.15)mV K^(-1)for WS_(2)and TiS_(3),***,Peltier elements were fabricated by interconnecting the P-and N-type films with graphite electrodes.A thermopower value up to 6.11 mV K^(-1)was obtained when the Peltier element were constructed with three *** findings of this work show proof-of-concept devices to illustrate the potential application of semiconducting van der Waals materials in future thermoelectric power generation as well as temperature sensing for low-cost disposable electronic devices.

关键词： paper-based electronics Seebeck effect semiconductors thermoelectrics van der Waals materials

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Strain-induced band gap engineering in layered TiS3

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Nano research 2018年第1期11卷 225-232页

作者： robert Biele eduardo flores.jose ramon ares Carlos Sanchez Isabel J. Ferrer Gabino rubio-Bollinger Andres Castellanos-Gomezs roberto D'Agosta Nano-Bio Spectroscopy Group and European Theoretical Spectroscopy Facility (EFSF) Universidad del Pals Vasco 20018 San Sebastidn Spain Materials of Interest in renewable Energies Group (MIrE Group) Dpto. de Fisica de Materiales Universidad Aut6noma de Madrid 28049 Madrid Spain Instituto de Ciencia de Materiales "Nicolds Cabrera" Campus de Cantoblanco 28049 Madrid Spain Dpto. de Ffsica de la Materia Condensada Condensed Matter Physics Center (IFIMAC) Universidad Aut6noma de Madrid Campus de Cantoblanco 28049 Madrid Spain Instituto de Ciencia de los Materiales de Madrid (ICMM-CSIC) Cantoblanco 28049 Madrid Spain IKErBASQUE Basque Foundation for Science 48013 Bilbao Spain

By combining ab initio calculations and experiments, we demonstrate how the band gap of the transition metal trichalcogenide TiS3 can be modified by inducing tensile or compressive strain. In addition, using our calculations, we predicted that the material would exhibit a transition from a direct to an indirect band gap upon application of a compressive strain in the direction of easy electrical transport. The ability to control the band gap and its nature could have a significant impact on the use of TiS3 for optical applications. We go on to verify our prediction via optical absorption experiments that demonstrate a band gap increase of up to 9% （from 0.99 to 1.08 eV） upon application of tensile stress along the easy transport direction.

关键词： band gap engineering titanium trisulfide 2-D materials strain

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Hydrogen Storage by Titanium Based Sulfides： Nanoribbons （TiS3） and Nanoplates （TiS2）

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Journal of Electrical Engineering 2015年第1期3卷 24-29页

作者： Mariam Barawi eduardo flores Marine Pomhieu jose ramon ares Fermin Cuevas Fabrice Leardini Isabel Jimenez Ferrer Carlos Sanchez Mire Group Science Faculty Autonomous University of Madrid Madrid 28012 Spain CEA LITEN Hydrogen Biomass Thermal Department Grenoble F-38054 France CMTr/ICMPE/CNrS-UPEC UMR7182 2-8 rue Henri Dunant Thiais Cedex 94320 France

Nowadays, finding cheap and non-toxic materials able to reversibly store high amounts of hydrogen is a challenge in the renewable energy field. Metal sulfides seem to be promising candidates to this purpose. Titanium sulfides are reported to be particularly interesting but their ability to store hydrogen remains unclear. In this work, titanium based sulfides TiS2 and TiS3 with two-dimensional nanostructures have been synthesized by solid-gas reaction between titanium powder and sulfur at temperatures between 500-600℃. The morphology and crystal structure of Ti-sulfides were characterized by SEM （scanning electronic microscopy） equipped with EDX （energy dispersion X-ray） and XrD （X-ray diffraction）, respectively. Their thermal stability was examined by TGA （thermal gravimetric analysis）. Their hydrogenation properties have been determined by manometric means using a Sieverts system and by DSC-HP （high-pressure differential scanning calorimetric）. Ti-sulfides hardly absorb/adsorb hydrogen for hydrogen pressures up to 80 bar and reaction temperatures up to 300℃.

关键词： Hydrogen storage titanium-sulfide nanoribbons nanoplates layer compounds.

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Arsenite provides a selective signal that coordinates arsenate uptake and detoxification through the regulation of PHr1 stability in Arabidopsis

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Molecular Plant 2021年第9期14卷 1489-1507页

作者： Cristina Navarro Cristian Mateo-Elizalde Thotegowdanapalya C.Mohan eduardo Sanchez-Bermejo Oscar Urrutia Maria Nieves Fernandez-Muniz jose M.Garcia-Mina riansares Munoz Javier Paz-ares Gabriel Castrillo Antonio Leyva Department of Plant Molecular Genetics Centro Nacional de Biotecnología-Consejo Superior de Investigaciones CientíficasMadrid 28049Spain Department of Environmental Biology Sciences SchoolUniversity of NavarraPamplona 31008Spain Department of Analytical Chemistry School of Chemical SciencesUniversidad Complutense de MadridMadrid 28040Spain Present address:Department of Biotechnology and Bioinformatics Faculty of Life SciencesJSS Academy of Higher Education and ResearchMysuruKarnataka 570015India Present address:S&A Fresh Produce.Brook Farm MardenHereford HR13ETUK Future Food Beacon of Excellence&School of Biosciences University of NottinghamNottingham LE125RDUK

In nature,plants acquire nutrients from soils to sustain growth,and at the same time,they need to avoid the uptake of toxic compounds and/or possess tolerance systems to cope with *** is particularly challenging when the toxic compound and the nutrient are chemically similar,as in the case of phosphate and *** this study,we demonstrated that regulatory elements of the phosphate starvation response(PSr)coordinate the arsenate detoxification machinery in the *** showed that arsenate repression of the phosphate transporter PHT1;1 is associated with the degradation of the PSr master regulator *** arsenic is sequestered into the vacuole,PHr1 stability is restored and PHT1;1 expression is ***,we identified an arsenite responsive SKP1-like protein and a PHr1 interactor F-box(PHIF1)as constituents of the SCF complex responsible for PHr1 *** found that arsenite,the form to which arsenate is reduced for compartmentalization in vacuoles,represses PHT1;1 expression,providing a highly selective signal versus phosphate to control PHT1;1 expression in response to ***,our results provide molecular insights into a sensing mechanism that regulates arsenate/phosphate uptake depending on the plant’s detoxification capacity.

关键词： arsenic signaling F-box protein arsenate uptake arsenic detoxification phosphate starvation phytoremediation

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Production and activity of matrix metalloproteinases during liver fibrosis progression of chronic hepatitis C patients

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World Journal of Hepatology 2021年第2期13卷 218-232页

作者： Moises Martinez-Castillo Abigail Hernandez-Barragan Ivonne flores-Vasconcelos Marina Galicia-Moreno Dorothy rosique-Oramas jose Luis Perez-Hernandez Fatima Higuera-De la Tijera eduardo E Montalvo-Jave Aldo Torre-Delgadillo Paula Cordero-Perez Linda Muñoz-Espinosa David Kershenobich Gabriela Gutierrez-reyes Liver Pancreas and Motility LaboratoryUnit of Experimental MedicineSchool of MedicineGeneral Hospital of MexicoUniversidad Nacional Autonoma de MexicoMexico City 06726Mexico Department of Molecular Biology and Genomics Institute of Molecular Biology in Medicine and Gene TherapyHealth Science University CenterUniversity of GuadalajaraGuadalajara 06726Mexico Department of Gastroenterology General Hospital of Mexico“Dr.Eduardo Liceaga”Mexico City 06726Mexico Department of General Surgery General Hospital of Mexico“Dr.Eduardo Liceaga”School of MedicineUniversidad Nacional Autonoma de MexicoMexico City 06726Mexico Hepatology and Liver Transplant National Institute of Medical Sciences and Nutrition“Salvador Zubirán”Mexico City 06726Mexico University Hospital“Dr.JoséEleuterio González ”Autonomous University of Nuevo LeonMonterrey 06726Mexico

BACKGrOUND Matrix metalloproteinases(MMPs)participate in the degradation of extracellular matrix compounds,maintaining the homeostasis between fibrogenesis and fibrolytic processes in the ***,there are few studies on the regulation of liver MMPs in fibrosis progression in *** To assess the production activity and regulation of matrix metalloproteinases in liver fibrosis stages in chronic hepatitis C(CHC).METHODS A prospective,cross-sectional,multicenter study was *** patients were categorized in fibrosis grades through FibroTest®and/or FibroScan®.Serum MMP-2,-7,and-9 were determined by western blot and multiplex suspension array *** were validated by the Kruskal-Wallis and Mann-Whitney U *** Spearman correlation coefficient and area under the receiver operating characteristic curve were *** and gelatinase activity was determined through the Azocoll substrate and zymogram test,whereas tissue inhibitor of metalloproteinase-1 production was determined by dot blot *** Serum concentrations of the MMPs evaluated were higher in CHC patients than in healthy ***-7 distinguished early and advanced stages,with a correlation of 0.32(Prea under the receiver operating characteristic displayed moderate sensitivity and specificity for MMP-7 in F4(area under the receiver operating characteristic,0.705;95%confidence interval:0.605-0.805;Preas gelatinase activity was not detected at any fibrosis *** inhibitor of metalloproteinase-1 determination showed upregulation in F0 and F1 but downregulation in F2(Prations of inactive MMPs were present in the serum of CHC patients,reflecting the impossibility to restrain liver fibrosis *** could be good diagnostic candidates and therapeutic targets for improving novel strategies to reverse liver fibrosis in CHC.

关键词： Extracellular matrix Matrix metalloproteinases Liver fibrosis Chronic hepatitis C Fibrogenesis Fibrolysis

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