Results 81 to 90 of about 150,986 (194)
SÍNTESIS DE MESO-TETRAFENILPORFIRINA Y SU COMPLEJACIÓN CON METALES USANDO QUÍMICA VERDE
Avances en Ciencias e Ingeniería, 2019 En este trabajo se describe la preparación del ligando meso-tetrafenilporfirina y de tres de sus complejos metálicos, preparados por reacción con sales de Ni(II), Cu(II) y Zn(II), mediante procedimientos sintéticos enmarcados en la llamada “Química Verde”
Sandra Rodríguez-Álvarez +2 more
doaj
Overcoming Aminoglycoside Enzymatic Resistance: Design of Novel Antibiotics and Inhibitors
Molecules, 2018 Resistance to aminoglycoside antibiotics has had a profound impact on clinical practice. Despite their powerful bactericidal activity, aminoglycosides were one of the first groups of antibiotics to meet the challenge of resistance.
Sandra G. Zárate +5 more
doaj +1 more source
Dendrimeric Antigens for Passive Mast Cell Activation in the Evaluation of Amoxicillin Allergy
Allergy, EarlyView.DeAns with defined nanoscale structure reveal that conjugate size and determinant density govern IgE‐mediated effector‐cell activation in AX allergy. All DeAn generations bind to sIgE in inhibition immunoassay, but only larger DeAns trigger FcεRI‐dependent responses in mouse MC, huRBL‐2H3, and LUVA cells.
Amene Tesfaye Ayane +12 more
wiley +1 more source
Influencia del proceso de evaluación continua en la calificación final de asignaturas de grado del área de Química Orgánica [PDF]
, 2014 En la presente memoria se detallan los resultados del análisis comparativo del proceso de evaluación continua, así como su influencia en la calificación final del alumno, en diferentes asignaturas de grado adscritas al área de conocimiento de Química ...
Alonso, Diego A. +9 more
core
Introducción a la química orgánica : un enfoque curricular [PDF]
, 1991 This article examines several alternative approaches to a teaching curriculum in Organic Chemistry at the University level. A special attention is devoted to basic, general concepts and their organization in the introductory ...
Seoane Prado, Carlos
core +2 more sources
British Journal of Pharmacology, EarlyView.Abstract Background and Purpose Immune tolerance prevents inflammation and autoimmunity, with dendritic cells (DCs) playing a key role. Reprogramming DCs towards a tolerogenic state represents a promising therapeutic strategy. Sulforaphane (SFN) has known immunomodulatory effects, but its clinical application is limited by poor stability and ...
María Elena Angarita‐Planchez +6 more
wiley +1 more source
CHEMSKETCH PARA APRENDER QUÍMICA ORGÁNICA [PDF]
, 2015 El aprendizaje de la química orgánica en el nivel medio superior (NMS) siempre ha sido complicado. Los estudiantes tienen serias dificultades para aprender la nomenclatura y la estructura de compuestos orgánicos, así como sus propiedades físicas y ...
Becerril, Fernando, Chávez, Ligia M.
core
ChemPhysChem, Volume 27, Issue 6, 27 March 2026.The host–guest complexation of a new fluorescent probe called 7‐(diethylamino)‐4‐hydroxyquinoline‐2(1H)‐one (QD) and its inclusion complex with the Cucurbit[7]uril (CB7) macrocycle were studied within a joint experimental and computational study. Confinement alters the photophysical properties of the synthesized quinolinone derivative also offering a ...
Kevin Droguett +4 more
wiley +1 more source
One-pot cross-enyne metathesis (CEYM)–Diels–Alder reaction of gem-difluoropropargylic alkynes
Beilstein Journal of Organic Chemistry, 2013 Propargylic difluorides 1 were used as starting substrates in a combination of cross-enyne metathesis and Diels–Alder reactions. Thus, the reaction of 1 with ethylene in the presence of 2nd generation Hoveyda–Grubbs catalyst generates a diene moiety ...
Santos Fustero +5 more
doaj +1 more source
Photocatalytic fluoroalkylation reactions of organic compounds [PDF]
, 2015 Photocatalytic methods for fluoroalkyl-radical generation provide more convenient alternatives to the classical perfluoroalkyl-radical (Rf) production through chemical initiators, such as azo or peroxide compounds or the employment of transition metals ...
Barata Vallejo, Sebastian +2 more
core +1 more source