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Listar por palabra clave "Raman spectroscopy"

Mostrando ítems 1-20 de 31

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A Multi-Core Fibre Photonic Lantern-Based Spectrograph for Raman Spectroscopy

Betters, Christopher H.; Bland-Hawthorn, Joss; Sukkarieh, Salah; Gris-Sánchez, Itandehui; Leon-Saval, Sergio G. (Institute of Electrical and Electronics Engineers, 2020-04-01)

[EN] We report on the development of a compact (volume approximate to 100 cm(3)), multimode diffraction-limited Raman spectrograph and probe designed to be compact as possible. The spectrograph uses 'off the shelf' optics, ...
A Prato Tour on Carbon Nanotubes: Raman Insights

Lucío, María Isabel; Giacalone, Francesco; La Parola, Valeria; Gámez-Valenzuela, Sergio; Muñoz-Alba, Fernando; Ruiz Delgado, M. Carmen; Herrero, M. Antonia; Vázquez, Ester (John Wiley & Sons, 2023-11)

[EN] The functionalisation of carbon nanotubes has been instrumental in broadening its application field, allowing especially its use in biological studies. Although numerous covalent and non-covalent functionalisation ...
Aerobic epoxidation of propene over silver (111) and (100) facet catalysts

Pulido Junquera, Maria Angeles; Concepción Heydorn, Patricia; Boronat Zaragoza, Mercedes; Corma Canós, Avelino (Academic PressElsevier, 2012-08)

Catalytic performance of single-crystal Ag(100) and Ag(111) catalysts for propene oxidation has been investigated by means of Raman spectroscopy and mass spectrometry, and the energy profile has been obtained at the DFT-D ...
Characterization of molecular monolayers on photonic nanostructures for integrated THz detectors

Camarena Pérez, María (Universitat Politècnica de València, 2022-06-15)

[ES] La combinació de la plasmónica i la optomecánica molecular està demostrant ser un camp potencialment prometedor per al desenvolupament de sensors de THz integrats que permeten acoblar aquest senyal a la de l'espectre ...
Characterization of thermal oxide films formed on a duplex stainless steel by means of confocal-Raman microscopy and electrochemical techniques

Sánchez Tovar, Rita; Leiva García, Rafael; García Antón, José (Elsevier, 2015-02-02)

In this work oxide films have been developed on the surface of a duplex stainless steel (UNS 1.4462) using high temperature confocal microscopy to follow their growth. The characteristics of these oxide films have been ...
Diagnosis of Myalgic Encephalomyelitis/Chronic Fatigue Syndrome With Partial Least Squares Discriminant Analysis: Relevance of Blood Extracellular Vesicles

González-Cebrián, Alba; Almenar-Pérez, Eloy; Xu, Jiabao; Yu, Tong; Huang, Wei E.; Giménez-Orenga, Karen; Hutchinson, Sarah; Lodge, Tiffany; Nathanson, Lubov; Morten, Karl J.; Ferrer, Alberto; Oltra, Elisa (Frontiers Media, 2022-04-01)

[EN] Myalgic Encephalomyelitis/Chronic Fatigue Syndrome (ME/CFS), a chronic disease characterized by long-lasting persistent debilitating widespread fatigue and post-exertional malaise, remains diagnosed by clinical criteria. ...
Diseño y caracterización de sustratos SERS con nanoestructuras de Silicio

González Llácer, Ignacio (Universitat Politècnica de València, 2020-10-06)

[ES] La espectroscopia Raman es una técnica espectroscópica molecular basada en la dispersión inelástica de la luz con la materia (efecto Raman) para obtener información sobre la composición o las características de un ...
Effect of phospholipid composition on the structure and physicochemical stability of proliposomes incorporating curcumin and cholecalciferol

Chaves, Matheus; Pinho, Samantha (Editorial Universitat Politècnica de València, 2018-09-07)

[EN] Proliposomes are dry phospholipid-based particles in which bioactives can be entrapped, and that can produce liposomal suspensions if adequately hydrated. In our study, curcumin and cholecalciferol were incorporated ...
Electropolymerized conducting polyaniline coating on nickel-aluminum bronze alloy for improved corrosion resistance in marine environment

Amegroud, Hicham; Boudalia, Maria; Elhawary, Maha; Garcia-Anton, Jose; Bellaouchou, Abdelkbir; Amin, Hatem M. A. (Elsevier, 2024-06-20)

[EN] Corrosion of metals in marine environments is a vital problem with significant negative economic impacts and coating is an effective measure of protection. In this work, polyaniline (PANI) conducting polymer was ...
Enhanced Drug Photosafety by Interchromophoric Interaction Due to Intramolecular Charge Separation

Li, Ming-De; Yan, Zhiping; Zhu, Ruixue; Phillips,David Lee; Aparici-Espert, Maria Isabel; Lhiaubet, Virginie Lyria; Miranda Alonso, Miguel Ángel (John Wiley & Sons, 2018-05-02)

[EN] Imatinib is a synthetic tyrosinase inhibitor that is employed for the treatment of some kinds of human cancer. This drug has a low phototoxicity towards DNA, but its pyridylpyrimidine (1) fragment by itself exhibits ...
Epoxidación de propileno con oxigeno molecular: mecanismo y centros activos

Jimaré Benito, María Teresa (Universitat Politècnica de València, 2015-06-15)

[EN] Variables which can influence upon propilene epoxidation are discussed. Because the analogy with epene epoxidation silver-based catalyzers are taken as a start point. Studies based on theoric calculus show different ...
Espectroscopia Raman del compuesto Bi2O2Se bajo altas presiones

Escrig Villalonga, Marc (Universitat Politècnica de València, 2020-10-16)

[ES] El presente TFM tiene por objetivo la medición y análisis del espectro Raman del compuesto Bi2O2Se, con interesantes propiedades termoeléctricas, en condiciones de alta presión. Por tanto, el trabajo del alumno ...
Estudio experimental de sustratos SERS basados en nanoantenas de silicio para la interacción Raman mejorada de materiales 2D y monocapas de moléculas autoensambladas

Bonilla Hernández, Laura (Universitat Politècnica de València, 2021-07-26)

[ES] La nanofotónica resonante totalmente dieléctrica basada en resonancias de tipo Mie dipolares y multipolares ha surgido recientemente como un nuevo campo de investigación para el diseño de metadispositivos en la ...
Fast route to obtain Al2O3-based nanocomposites employing graphene oxide: Synthesis and Sintering

Benavente Martínez, Rut; Pruna, Alina Iuliana; Borrell Tomás, María Amparo; Salvador Moya, Mª Dolores; Pullini, Daniele; Penaranda-Foix, Felipe L.; Busquets Mataix, David Jerónimo (Elsevier, 2015-04)

A fast approach based on microwave technology was employed for the sintering of novel composites of alumina and using graphene oxide (GO) as susceptor. The thermal stability and structure of GO materials produced by chemical ...
Flexible CuInSe2 photovoltaic cells fabricated by non-vacuum techniques

Samantilleke, Anura Priyajith; Sahal, Mustapha; Ortiz Moya, Laura; Cerqueira, M.F.; Marí Soucase, Bernabé (Elsevier, 2011-08)

In this work, CuInSe 2 based flexible photovoltaic cells have been fabricated completely using non-vacuum low-cost techniques. Thin films were deposited on molybdenum thin foil substrates by electrodeposition using a ...
High-pressure characterization of multifunctional CrVO4

Botella, P.; López-Moreno, S.; Errandonea, D.; Manjón, Francisco-Javier; Sans-Tresserras, Juan Ángel; Vie, D.; Vomiero, A. (IOP Publishing, 2020-09-09)

[EN] The structural stability and physical properties of CrVO(4)under compression were studied by x-ray diffraction, Raman spectroscopy, optical absorption, resistivity measurements, andab initiocalculations up to 10 GPa. ...
High-pressure lattice-dynamics of NdVO4

Panchal, V.; Errandonea, D.; Manjón, F. J.; Muñoz, A.; Rodríguez-Hernández, P.; Achary, S.N.; Tyagi, A.K. (Elsevier, 2017-01)

High-pressure Raman-scattering measurements and ab initio calculations on NdVO4 have been carried out up to 30 GPa. Our combined experimental and theoretical study confirms that beyond 5.9 GPa NdVO4 undergoes an irreversible ...
High-pressure polymorphs of TbVO4: A Raman and ab initio study

Errandonea, D.; Manjón Herrera, Francisco Javier; Muñoz, A.; Rodríguez-Hernández, P.; Panchal, V.; Achary, S. N.; Tyagi, A. K. (Elsevier, 2013-11-15)

Raman measurements on TbVO4 show the occurrence of three pressure-induced phase transitions. The first one, an irreversible transition from the zircon to the scheelite structure, occurs beyond 6.7 GPa. In addition, two ...
High-pressure Raman investigation of high index facets bounded alpha-Fe2O3 pseudocubic crystals

Bushiri, M. Junaid; Gopi, Divya Neravathu; Monteseguro, Virginia; Sans-Tresserras, Juan Ángel (IOP Publishing, 2021-02-24)

[EN] High index facet bounded alpha-Fe2O3 pseudocubic crystals has gained the attention of the scientific community due to its promising electrochemical sensing response towards aqueous ammonia. The structural stability ...
In Situ Raman Characterization of SOFC Materials in Operational Conditions: A Doped Ceria Study

Solís, Cecilia; Balaguer Ramirez, Maria; Serra Alfaro, José Manuel (MDPI AG, 2020-07)

[EN] The particular operational conditions of electrochemical cells make the simultaneous characterization of both structural and transport properties challenging. The rapidity and flexibility of the acquisition of Raman ...