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Browsing by Subject "Chemistry"

Now showing items 1-20 of 79

2'-Methoxyacetophenone as DNA photosensitiser for mono and biphotonic processes

Rodríguez Alzueta, Ofelia (Universitat Politècnica de València, 2021-01-17)

[ES] La luz solar es necesaria para la vida en la Tierra y sus efectos beneficiosos están fuera de toda duda. Sin embargo, la radiación ultravioleta (UV), que forma parte del espectro solar, puede resultar dañina para los ...
A NIR light-triggered drug delivery system using core-shell gold nanostars-mesoporous silica nanoparticles based on multiphoton absorption photo-dissociation of 2-nitrobenzyl PEG

Hernández-Montoto, Andy; Gorbe, Mónica; Llopis-Lorente, Antoni; Terrés-Haro, José Manuel; Montes-Robles, Roberto; Cao Milán, Roberto; Díaz de Greñu-Puertas, Borja; Alfonso-Navarro, María; Orzaez, Mar; Marcos Martínez, María Dolores; Martínez-Máñez, Ramón; Sancenón Galarza, Félix (The Royal Society of Chemistry, 2019-08-07)

[EN] Gold nanostars coated with a mesoporous silica shell and functionalized with poly(ethylene glycol) containing photolabile 2-nitrobenzyl moieties are able to release doxorubicin after NIR light irradiation at low power ...
Analysis of the effect of saturation gas, solution temperature and concentration on OH radical formation by ultrasonic irradiation for hydrogen production optimization

Erades de Quevedo, Raúl (Universitat Politècnica de València, 2020-05-22)

[ES] En el siguiente Trabajo de Fin de Máster se estudian los métodos dosimétricos de Weissler y Fricke para caracterizar la formación de radicales hidroxilo por radiación ultrasónica. Se emplea un transductor de frecuencia ...
Analysis of two Leveling Courses in Chemistry: objectives, methodology, assessments and future prospects

Arroyo-de Dompablo, Elena; Ibáñez-González, María (Editorial Universitat Politècnica de València, 2018-07-02)

[EN] The purpose of this report is to analyze different aspects of two levelling courses in Chemistry, offered to entry-levels students in the Degree in Geology (Universidad Complutense de Madrid) and in the degree in ...
Azo dyes functionalized with alkoxysilyl ethers as chemodosimeters for the chromogenic detection of the fluoride anion

Agostini, Alessandro; Milani, Michele; Martínez Mañez, Ramón; Licchelli, Maurizio; Soto Camino, Juan; Sancenón Galarza, Félix (Wiley-VCH Verlag, 2012-09)

Finding fluoride: An azo dye functionalized with tert-butyldimethylsilyl ether has been synthesized and used as a selective chromogenic fluoride sensor in the acetonitrile/water mixtures. The chromogenic response arises ...
Bottom-up assembly of bimetallic nanocluster catalysts from oxide-supported single-atom precursors

Sarma, Bidyut B.; Agostini, Giovanni; Garcia-Farpon, Marcos; Marini, Carlo; Pfaender, Norbert; Prieto González, Gonzalo (The Royal Society of Chemistry, 2021-04-07)

[EN] The precise synthesis and stabilization of oxide-supported bimetallic clusters in the low-to-sub nanometer size regime is highly relevant in various fields, from optics and sensing to electrochemistry and catalysis. ...
BYOD as a gamification tool for improving learning of an experimental subject in Chemistry Degree

Ares, Ana; Toribio, Laura; Nieto, José; De la Fuente, Adrián; Bernal, José (Editorial Universitat Politècnica de València, 2022-05-31)

[EN] Given the impact of smartphones in all areas of society, the education at the university should not be conceived without the use of technological tools inside classrooms. The present study examines the use of “Bring ...
Carbon nanoparticles in lateral flow methods to detect genes encoding virulence factors of Shiga toxin-producing Escherichia coli

Noguera Murray, Patricia Silvestre; Posthuma-Trumpie, G.A.; van Tuil, M.; van der Wal, F.J.; de Boer, A.; Moers, A.P.H.A.; van Amerongen, A. (Springer Verlag, 2011)

The use of carbon nanoparticles is shown for the detection and identification of different Shiga toxin-producing Escherichia coli virulence factors (vt1, vt2, eae and ehxA) and a 16S control (specific for E. coli) based ...
Characterization of gas emissions from a Mediterranean broiler farm

Calvet Sanz, Salvador; Cambra López, María; Estellés, F.; Torres Salvador, Antonio Germán (Poultry Science Association, 2011)

[EN] Gas emissions from broiler production have been the subject of intensive research. However, little experimental information exists for farms under the particular management and environmental conditions of the European ...
Characterizing and modeling backscattering in silicon microring resonators

Ballesteros García, Guillem; Matres Abril, Joaquín; Martí Sendra, Javier; Oton Nieto, Claudio José (Optical Society of America, 2011)

We present an experimental technique to characterize back-scattering in silicon microring resonators, together with a simple analytical model that reproduces the experimental results. The model can extract all the key ...
Chemistry for engineering students: A key factor for social and technological development

Llorens Molina, Juan Antonio; Pinto, Gabriel (OmniaScienceUniversitat Politécnica de Catalunya, 2014)

The peculiarity of Chemistry as a basic subject in Engineering Studies and its embedded potential difficulties are matters which are now common to universities worldwide. In particular, the learning of Chemistry in the new ...
Crystal structure of sinhalite MgAlBO4 under high pressure

Santamaría Pérez, David; Errandonea, Daniel; Gomis, O.; Sans Tresserras, Juan Ángel; Pereira, A. L. J.; Manjón Herrera, Francisco Javier; Popescu, Catalin; Rodríguez Hernández, Plácida; Muñoz, Alfonso (American Chemical Society, 2015-03-26)

We report on high-pressure angle-dispersive X-ray diffraction data up to 27 GPa for natural MgAlBO4 sinhalite mineral and ab initio total energy calculations. The experimental bulk modulus of sinhalite is B-0 = 171(3) GPa ...
Cucurbit[7]uril-stabilized gold nanoparticles as catalysts of the nitro compound reduction reaction

Blanco, Elias; Esteve-Adell, Iván; Atienzar Corvillo, Pedro Enrique; Casas, J.A.; Hernández, P.; Quintana, C. (Royal Society of Chemistry, 2016)

[EN] The catalytic performance of cucurbit[7]uril-protected gold nanoparticles is reported for the first time for the reductive degradation of the banned but still used antibacterial compound nitrofurantoin. The ...
Dansyl labeling to modulate the relative affinity of bile acids for the binding sites of human serum albumin

Rohacova, Jana; Sastre Navarro, German Ignacio; Marín García, Mª Luisa; Miranda Alonso, Miguel Ángel (American Chemical Society, 2011-09-08)

[EN] Binding of natural bile acids to human serum albumin (HSA) is an important step in enterohepatic circulation and provides a measure of liver function. In this article, we report on the use of four dansyl (Dns) derivatives ...
Defective graphene as a metal-free catalyst for chemoselective olefin hydrogenation by hydrazine

Dhakshinamoorthy, Amarajothi; He, Jinbao; Franconetti, Antonio; Asiri, Abdullah M.; Primo Arnau, Ana Maria; García Gómez, Hermenegildo (The Royal Society of Chemistry, 2018-03-21)

[EN] A series of defective graphenes containing or not containing N, B, S and other heteroatoms exhibited general activity as metal-free catalysts for the hydrogenation of C=C double bonds by hydrazine in the presence of ...
Demonstration of near infrared gas sensing using gold nanodisks on functionalized silicon

Rodríguez Cantó, Pedro Javier; Martínez Marco, Mª Luz; Rodríguez Fortuño, Francisco José; Tomás Navarro, Begoña; Ortuño Molinero, Rubén; Peransi Llopis, Sergio Manuel; Martínez Abietar, Alejandro José (Optical Society of America, 2011)

[EN] In this work, we demonstrate experimentally the use of an array of gold nanodisks on functionalized silicon for chemosensing purposes. The metallic nanostructures are designed to display a very strong plasmonic resonance ...
Development of a Mass Sensitive Quartz Crystal Microbalance (QCM)-Based DNA Biosensor Using a 50 MHz Electronic Oscillator Circuit,

García-Martinez, Gonzalo; Alonso Bustabad, Enrique; Perrot, Hubert; Gabrielli, Claude; Bucur, Bogdan; Lazerges, Mathieu; Rose, Daniel; Rodriguez-Pardo, Loreto; Fariña Tojo, Jose; Compère, Chantal; Arnau Vives, Antonio (MDPI, 2011)

This work deals with the design of a high sensitivity DNA sequence detector using a 50 MHz quartz crystal microbalance (QCM) electronic oscillator circuit. The oscillator circuitry is based on Miller topology, which is ...
Development of monoclonal antibody-based immunoassays for the analysis of bisphenol A in canned vegetables

Moreno Tamarit, Mª José; D'Arienzo, Pasquale; Manclus Ciscar, Juan José; Montoya Baides, Ángel (2011)

The aim of this work was the development of monoclonal antibodies (MAbs) and highly sensitive immunoassays (ELISAs) to bisphenol A (BPA), a well-known endocrine disruptor able to migrate from the internal coating of cans ...
Diseño e implementación de un juego de apoyo a la docencia

Castellano Mínguez, Emilio Pedro (Universitat Politècnica de València, 2016-10-03)

[ES] El objetivo del Proyecto es el desarrollo desde cero de una aplicación para ayudar a la docencia. Fue propuesto por un profesor de Química de la Escuela de Agrónomos de la Universidad Politécnica de Valencia e intenta ...
Diseño y desarrollo de un MOOC como estrategia para el aprendizaje propedéutico de la química

Gómez Benito, Carmen; Llorens Molina, Juan Antonio; Morera Bertomeu, Isabel María; Pardo Vicente, María Teresa (Editorial Universitat Politècnica de València, 2014-07-16)

[EN] The design and development of a chemistry propedeutic course based on the Massive Online Open Course (MOOC) model as educational innovation, is shown in this work. Its aim is to help students to overcome well ...