Buscar

Mostrando ítems 1-10 de 13

Reduction of nitrate by heterogeneous photocatalysis over pure and radiolytically modified TiO2 samples in the presence of formic acid

Hérissan, Alexandre; Meichtry, Jorge Martin; Remita, Hynd; Colbeau Justin, Christophe; Litter, Marta Irene (Elsevier Science, 2017-03)

Heterogeneous photocatalytic reduction of nitrate (2 mM) in the presence of formic acid (FA, 10 mM) using pure and modified TiO2 samples under UV–vis irradiation was performed at pH 3, and the evolution of the intermediate ...

PREPARATION OF SILVER AND GOLD NANOPARTICLES: A SIMPLE METHOD TO INTRODUCE NANOTECHNOLOGY INTO TEACHING LABORATORIES.

Melo, MA; Santos, LSS; Goncalves, MD; Nogueira, AF (Soc Brasileira QuimicaSao PauloBrasil, 2012)

Irradiation of phenylalanine at 300 K by MeV ions

da Costa, Cintia; Mejia Guaman, Christian Fernando; da Silveira, Enio; Iza Toapanta, Peter (2022)

Phenylalanine (Phe) is an amino acid that has been identified in carbonaceous meteorites; its formation mechanism in space is unknown, and its radioresistance has been object of investigation. This work aims to study, in ...

Photochemical and Photophysical Reactions of f ac -Rhenium(I) Tricarbonyl Complexes. Effects from Binucleating Spectator Ligands on Excited and Ground State Processes

Guerrero, J.; Piro, Oscar Enrique; Wolcan, Ezequiel; Feliz, Mario Ruben; Ferraudi, G.; Moya, S. A. (American Chemical Society, 2001-12)

Ground and excited state properties of the newly prepared complexes Re(CO)3(2,2¢-biquinoline) LS3(2,2¢-biquinoline) LSS +, LS ) pyrazine or 4,4¢-bipyridine, and Re(CO)3(2,2¢-bipy)(2-pyrazinecarboxylate) were investigated ...

Comparison between gold nanoparticles synthesized by radiolysis and by EGCG-driven gold reduction

FREITAS, LUCAS F. de; CRUZ, CASSIA P.C. da; CAVALCANTE, ADRIANA K.; BATISTA, JORGE G. dos S.; VARCA, GUSTAVO H.C.; MATHOR, MONICA B.; LUGAO, ADEMAR B. (2020)

Information on the presence of 2- Alkylcyclobutanones in animal feed after ionizing radiation treatment

CAMPOS, A.M.; BARBEZAN, A.B.; VILLAVICENCIO, A.L.C.H.; INTERNATIONAL NUCLEAR ATLANTIC CONFERENCE (Associa????o Brasileira de Energia Nuclear, 2018)

Estudo fitoquímico e biológico das partes aéreas de Lychnophora pinaster Mart

Viviane Gomes da Costa Abreu (Universidade Federal de Minas GeraisUFMG, 2013-08-14)

Ethnopharmacological studies have indicated the use of extracts of the genus Lychnophora (Asteraceae) as anti-inflammatory. The aerial parts of Lychnophora pinaster Mart. have been subjected to cold extraction in hexane ...

Converging fate of the oxidation and reduction of 8-thioguanosine

Taras Goslinska, Katarzyna; Vetica, Fabrizio; Barata Vallejo, Sebastian; Triantakostanti, Virginia; Marciniak, Bronislaw; Chatgilialoglu, Chryssostomos (Molecular Diversity Preservation International, 2019-08)

Thione-containing nucleobases have attracted the attention of the scientific community for their application in oncology, virology, and transplantology. The detailed understanding of the reactivity of the purine derivative ...

Avaliação da integridade de constituintes químicos de Echinodorus macrophyllus (chapéu-de-couro) tratada por irradiação gama

Thiago de Melo Silva (Universidade Federal de Minas GeraisUFMG, 2010-07-23)

The herbal drugs used in popular medicine show a high level of microbiological contamination (bacteria and fungi). Gamma irradiation has been an alternative to increase shelf life and reduce microbial contamination of ...

Spectral and Kinetic Properties of Radical Cations Derived from Oxoisoaporphines: Relevance to Electron-Transfer Processes Involving Phytoalexins

Fuente Urrutia, Julio de la; Kciuk, Gabriel; Aliaga Silva, Christian Marcelo; Bobrowski, Krzysztof (American Chemical Society, 2014)

The thermally induced intermolecular electron transfer reaction in acetonitrile between the tetracyanoethylene (TCNE), a [pi]-electron acceptor with a large electron affinity, and six oxoisoaporphines (2,3-dihydro-7H-d ...