Results 41 to 50 of about 758 (179)

A suggested modification of the nitrito-nitro isomerization kinetic experiment [PDF]

Journal of Chemical Education, 1993
Some suggestions to enhance an experiment that appeared in the past in this Journal (September 1981, page 734).
Smadar Goren, Marcos Zayat, Carla Heitner-Wirguin   +2 more
openaire   +1 more source

Robust Chemiresistive Behavior in Conductive Polymer/MOF Composites

Advanced Materials, Volume 36, Issue 27, July 4, 2024.
Described in this study is a hybridization strategy combining conductive metal‐organic frameworks (MOFs) and polymers for improved gas sensing. Significant enhancements in sensor recovery kinetics, cycling stability, and dynamic range at room temperature are demonstrated. Mechanistic insights into energy band alignments and sorbate–analyte interactions
Heejung Roh, Dong‐Ha Kim, Yeongsu Cho, Young‐Moo Jo, Jesús A. del Alamo, Heather J. Kulik, Mircea Dincă, Aristide Gumyusenge   +7 more
wiley   +1 more source

Report on the establishment of the safe shelf life of certain ready‐to‐eat foods, sliced and prepacked in retail, in relation to the risk of Listeria monocytogenes

Food Risk Assess Europe, Volume 2, Issue 3, July 2024.
Abstract The Barcelona Public Health Agency (ASPB) asked the Scientific Advisory Committee on Food Safety for an opinion on the safe shelf life of Listeria monocytogenes in certain products (cheeses, cooked meats, including pâtés, and cured meats) sliced and prepackaged prior to retail sale.
Sara Bover Cid, José Juan Rodríguez Jerez, Samuel Portaña Tudela, Santiago Rodellar Torras, Montserrat Vila Brugalla, Maria Victòria Castell Garralda, Laura Alcalde Sanz   +6 more
wiley   +1 more source

Radiação gama e nitrito de sódio na composição química e textura de mortadelas

Ciência Rural, 2014
Um delineamento composto central rotacional (DCCR) foi conduzido para estudar os efeitos simultâneos da adição de nitrito (43,6; 150; 256,4; e 300 ppm) e de doses de radiação gama (2,9; 10; 17,1; e 20 kGy) nos atributos de textura e parâmetros físico ...
Monalisa Pereira Dutra, Eduardo Mendes Ramos, Carolina Naves Aroeira, Alcinéia de Lemos Souza Ramos, Mauricio Henriques Louzada Silva, José Luís Contado, Marcio Tadeu Pereira   +6 more
doaj   +1 more source

Crystal structure ofcis-diamminebis(nitrito-κN)platinum(II) [PDF]

Acta Crystallographica Section E Crystallographic Communications, 2015
Single crystals ofcis-[Pt(NO2)2(NH3)2], were obtained by means of hypersaturation directly out of a plating electrolyte. The square-planar coordination environment of the divalent PtIIatom is formed by four N atoms belonging to two ammine and two monodentate nitrite ligands. The ligands adopt acisconfiguration.
Volker Kahlenberg, Thomas Gelbrich, Richard Tessadri, Frederik Klauser   +3 more
openaire   +3 more sources

Smart bistable coordination complexes

Smart Molecules, Volume 2, Issue 2, June 2024.
Smart bistable complexes play a vital role in various applications such as sensors, data storage, spintronics, smart windows, optical switches, information encryption and decryption, displays, actuators, and so on. In this review, we summarize smart bistable complexes in terms of external stimulus approach and discuss their design guidelines ...
Xiong Xiao, Zong‐Ju Chen, Russell J. Varley, Cheng‐Hui Li   +3 more
wiley   +1 more source

Electrocatalytic Nitrite Reduction in Neutral Water with Ni(II) and Co(II) Macrocycle Complexes: Catalytic Evaluation and Mechanistic Elucidation

ChemCatChem, Volume 16, Issue 7, April 8, 2024.
The selective electrocatalytic reduction of nitrite anion, a key species in the global nitrogen cycle, is demonstrated using redox‐active macrocyclic complexes of Ni(II) and Co(II) as catalysts. This process yielded ammonia as the major product with excellent Faradaic efficiency and robust activity.
Jonathan Ferguson, Joshua Brown, Darrin Richeson   +2 more
wiley   +1 more source

QUALIDADE DE PRODUTOS CÁRNEOS FABRICADOS SOB INSPEÇÃO FEDERAL NO ESTADO DO PARANÁ

Ciência Animal Brasileira, 2011
Objetivou-se com o presente estudo avaliar amostras de produtos cárneos fabricados sob inspeção federal no Estado do Paraná quanto às suas características microbiológicas, segundo a legislação vigente.
Heitor Daguer, Heidi Derksen Silva, Emilia Tirie Higashiyama, Cristina Maria Zanette, Luciano dos Santos Bersot   +4 more
doaj   +1 more source

Introducing Weakly Ligated Tris(trifluoromethyl)copper(III)

ChemistryEurope, Volume 2, Issue 2, March 8, 2024.
Unique, high‐valent tris(trifluoromethyl)copper species were prepared in the form of DMF or MeCN adducts, isolated and characterized, including X‐ray crystallography. Theoretical studies confirmed the free Cu(CF3)3 to be an elusive T‐shaped molecule, and Cu(III) trifluoromethyl carboxylate and nitrito complexes were accessed from (DMF)2Cu(CF3)3 by ...
Vladimir Motornov, Martin Procházka, Nora Alpuente, Pedro Salvador, Petr Slavíček, Blanka Klepetářová, Xavi Ribas, Petr Beier   +7 more
wiley   +1 more source

ESTUDO QUALI-QUANTITATIVO DA MICROBIOTA ANAERÓBIA EM AMOSTRAS DE QUEIJOS PROVOLONE, PARMESÃO E PRATO

Ciência Animal Brasileira, 2006
O presente estudo teve o propósito de quantificar, isolar e identificar as bactérias mais freqüentes em amostras de queijos provolone, parmesão e prato, consideradas estufadas e normais, assim como determinar o pH e os níveis de nitrito e nitrato.
Edmar Soares Nicolau, Gabriela Teixeira Borges, Antônio Nonato de Oliveira, Albenones José de Mesquita, Albertina Alves Gundim Dutra Souza   +4 more
doaj   +3 more sources