Artículos SUPRABUR
http://hdl.handle.net/10259/4355
2024-03-29T09:40:34ZInteractive Computer Game That Engages Students in Reviewing Organic Compound Nomenclature
http://hdl.handle.net/10259/8481
Interactive Computer Game That Engages Students in Reviewing Organic Compound Nomenclature
Silva Júnior, José Nunes da; Nobre, Davi Janô; Nascimento, Rômulo Silva do; Torres, Giancarlo Schaffer; Leite, Antonio José Melo; Monteiro, André Jalles; Alexandre, Francisco Serra Oliveira; Rodríguez Rodríguez, Mª Teresa; Rojo Cámara, Mª Josefa
This report provides information about an interactive computer game named Say My Name that allows high school and undergraduate students to review individually nomenclature of organic compounds in an engaging and fun way by answering up to 600 questions distributed in three difficulty levels. Responses from students and teachers who have played the game have been quite positive. An assessment of students’ knowledge gains was also performed; the results reveal that students who used the game as a complementary didactic tool in their studies had higher numbers of correct answers than did students who studied using conventional learning methods. Say My Name can be played in Portuguese, Spanish, and English online (free of charge) via a Web browser.
2018-05-01T00:00:00ZPalladium nanodendrites uniformly deposited on the surface of polymers as an efficient and recyclable catalyst for direct drug modification via Z-selective semihydrogenation of alkynes
http://hdl.handle.net/10259/8459
Palladium nanodendrites uniformly deposited on the surface of polymers as an efficient and recyclable catalyst for direct drug modification via Z-selective semihydrogenation of alkynes
García Calvo, José; Calvo Gredilla, Patricia; Vallejos Calzada, Saúl; García Pérez, José Miguel; Cuevas Vicario, José Vicente; García Herbosa, Gabriel; Avella, Manuel; Torroba Pérez, Tomás
The preparation of new monodisperse polycrystalline palladium nanoparticles uniformly distributed on the surface of polymers, by simply adding a palladium(II) solution in water to the polymers, is described. The polymer supported palladium nanoparticles material was used as an efficient portable and reusable catalyst for the stereoselective semihydrogenation reaction of internal alkynes to (Z)-alkenes in green solvents.
2018-07-01T00:00:00ZSurface functionalized silica nanoparticles for the off–on fluorogenic detection of an improvised explosive, TATP, in a vapour flow
http://hdl.handle.net/10259/8384
Surface functionalized silica nanoparticles for the off–on fluorogenic detection of an improvised explosive, TATP, in a vapour flow
García Calvo, José; Calvo Gredilla, Patricia; Ibáñez Llorente, Marcos; Romero Velásquez, Daisy Carolina; Cuevas Vicario, José Vicente; García Herbosa, Gabriel; Avella, Manuel; Torroba Pérez, Tomás
We report the development of new fluorogenic silica nanomaterials that were able to generate
fluorescence in the presence of vapours of triacetone triperoxide, TATP, an improvised explosive used in
terrorist attacks. The materials worked in a vapour flow of TATP, giving a permanent and strongly
fluorescent response.
2018-02-01T00:00:00ZSilica Nanoparticle/Fluorescent Dye Assembly Capable of Ultrasensitively Detecting Airborne Triacetone Triperoxide: Proof-of-Concept Detection of Improvised Explosive Devices in the Workroom
http://hdl.handle.net/10259/8222
Silica Nanoparticle/Fluorescent Dye Assembly Capable of Ultrasensitively Detecting Airborne Triacetone Triperoxide: Proof-of-Concept Detection of Improvised Explosive Devices in the Workroom
Revilla Cuesta, Andrea; Abajo Cuadrado, Irene; Medrano, María; Martín Salgado, Mateo; Avella, Manuel; Rodríguez Rodríguez, Mª Teresa; García Calvo, José; Torroba Pérez, Tomás
We describe the proof of concept of a portable testing setup for the detection of triacetone triperoxide (TATP), a common component in improvised explosive devices. The system allows for field testing and generation of real-time results to test for TATP vapor traces in air by simply using circulation of the air samples through the sensing mechanism under the air conditioning system of an ordinary room. In this way, the controlled trapping of the analyte in the chemical sensor gives reliable results at extremely low concentrations of TATP in air under real-life conditions, suitable for daily use in luggage storage for airlines or a locker room for a major sporting event. The reported fluorescent methodology is very sensitive and selective, allowing for the trapping of triacetone triperoxide in the chemical sensor to give reliable results at very low concentrations in air under ambient conditions, by comparing the fluorescence of the material before and after exposition to TATP traces in air.
2023-01-01T00:00:00Z