Search Results - "Hurtado, John J."

Electrochemical Determination of Morin in Natural Food Using a Chitosan–Graphene Glassy Carbon Modified Electrode by Nagles, Edgar, Bello, Monica, Hurtado, John J

“…This report presents a new application for the chitosan–graphene glassy carbon electrode (Ch-G/GCE) system in the determination of the hydroxyflavonoid morin…”
Get full text

Simultaneous determination of tartrazine, sunset yellow and allura red in foods using a new cobalt-decorated carbon paste electrode by Penagos-Llanos, Johisner, García-Beltrán, Olimpo, Calderón, Jorge A., Hurtado-Murillo, John J., Nagles, Edgar, Hurtado, John J.

“…A simple, sensitive and economical sensor based on carbon paste decorated with a cobalt complex (CoC/CPE) was developed and applied to the simultaneous…”
Get full text

Electrochemical determination of paracetamol in a pharmaceutical dose by adsorptive voltammetry with a carbon paste/La 2 O 3 microcomposite by Nagles, Edgar, Ceroni, Mario, Hurtado-Murillo, John J, Hurtado, John J

“…This paper presents a new application for microcomposites based on carbon paste (CP) and La2O3 (LaOX). This simple and versatile microcomposite (LaOX/CPE) was…”
Get more information

Development of Antibacterial and Antifungal Triazole Chromium(III) and Cobalt(II) Complexes: Synthesis and Biological Activity Evaluations by Murcia, Ricardo A, Leal, Sandra M, Roa, Martha V, Nagles, Edgar, Muñoz-Castro, Alvaro, Hurtado, John J

“…In this work, six complexes ( ⁻ ) of Cr(III) and Co(II) transition metals with triazole ligands were synthesized and characterized. In addition, a new ligand,…”
Get full text

Development of a microcomposite with single-walled carbon nanotubes and Nd2O3 for determination of paracetamol in pharmaceutical dosage by adsorptive voltammetry by Arancibia, Verónica, Penagos-Llanos, Johisner, Nagles, Edgar, García-Beltrán, Olimpo, Hurtado, John J.

“…This study presents for the first time a new composite of carbon paste (CP), single-walled carbon nanotubes (SWCNTs) and Nd2O3 (NdOX). This versatile composite…”
Get full text

Antibacterial Activities of Azole Complexes Combined with Silver Nanoparticles by Bello-Vieda, Nestor J, Pastrana, Homero F, Garavito, Manuel F, Ávila, Alba G, Celis, Adriana M, Muñoz-Castro, Alvaro, Restrepo, Silvia, Hurtado, John J

“…Growing antimicrobial resistance is considered a potential threat for human health security by health organizations, such as the WHO, CDC and FDA, pointing to…”
Get full text

Electrocomposite Developed with Chitosan and Ionic Liquids Using Screen-Printed Carbon Electrodes Useful to Detect Rutin in Tropical Fruits by Muñoz, Lili, Arancibia, Verónica, García-Beltrán, Olimpo, Nagles, Edgar, Hurtado, John J

“…This work reports the development of a composite of the ionic liquid 1-butyl-3-methylimidazolium tetrafluoroborate ([BMIM]BP₄) and chitosan (CS) described in…”
Get full text

Salophen-type Organocatalysts for the Cycloaddition of CO2 and Epoxides under Solvent, Halide, and Metal-Free Conditions by Fonseca-López, Daniela, Ezenarro-Salcedo, David, Zapata-Rivera, Jhon, Rojas, René S., Hurtado, John J.

“…8-Formyl-7-hydroxycoumarin (A) and their derived salophen-type organocatalysts L1, L2, and L3 were used for the synthesis of cyclic carbonates from carbon…”
Get full text

Inhibition of C. albicans Dimorphic Switch by Cobalt(II) Complexes with Ligands Derived from Pyrazoles and Dinitrobenzoate: Synthesis, Characterization and Biological Activity by Fonseca, Daniela, Leal-Pinto, Sandra M, Roa-Cordero, Martha V, Vargas, José D, Moreno-Moreno, Erika M, Macías, Mario A, Suescun, Leopoldo, Muñoz-Castro, Álvaro, Hurtado, John J

“…Seven cobalt(II) complexes of pyrazole derivatives and dinitrobenzoate ligands were synthesized and characterized. The single-crystal X-ray diffraction…”
Get full text

Coordination Polymers Containing 1,3-Phenylenebis-((1H-1,2,4-triazol-1-yl)methanone) Ligand: Synthesis and ε-Caprolactone Polymerization Behavior by Bello-Vieda, Nestor J, Murcia, Ricardo A, Muñoz-Castro, Alvaro, Macías, Mario A, Hurtado, John J

“…The reaction of isophthaloyl dichloride with 1 -1,2,4-triazole afforded the new ligand 1,3-phenylenebis(1,2,4-triazole-1-yl)methanone ( ). A series of Co(II),…”
Get full text

Antifungal activity of Co(II) and Cu(II) complexes containing 1,3-bis(benzotriazol-1-yl)-propan-2-ol on the growth and virulence traits of fluconazole-resistant Candida species: synthesis, DFT calculations, and biological activity by Murcia-Galán, Ricardo A., Durán, Sandra M., Leal-Pinto, Sandra M., Roa-Cordero, Martha V., Vargas, Jose D., Herrera, Laura V., Muñoz-Castro, Alvaro, MacLeod-Carey, Desmond, Naranjo, Tonny W., Rodríguez-Kessler, Peter L., Hurtado, John J.

“…Relevant virulence traits in Candida spp. are associated with dimorphic change and biofilm formation, which became an important target to reduce antifungal…”
Get full text

Polymers of ε-Caprolactone Using New Copper(II) and Zinc(II) Complexes as Initiators: Synthesis, Characterization and X-Ray Crystal Structures by Posada, Andrés F, Macías, Mario A, Movilla, Santiago, Miscione, Gian Pietro, Pérez, León D, Hurtado, John J

“…Five of six new Zn(II) and Cu(II) complexes were active in the ring-opening polymerization (ROP) of ε-caprolactone (CL) under solvent-free conditions,…”
Get full text

Unconventional Yeasts Isolated from Chilean Honey: A Probiotic and Phenotypic Characterization by Rodríguez Machado, Adrian, Caro, Camila Mella, Hurtado-Murillo, John J, Gomes Lobo, Cristian J, Zúñiga, Rommy N, Franco, Wendy

“…This study explores the potential probiotic properties of yeasts isolated from various Chilean honeys, focusing on Ulmo, Quillay, and Mountain honeys. Six…”
Get full text

A New Electrochemical Method to Detect Sunset Yellow, Tartrazine and Thiomersal in a Pharmaceutical Dose Using a Carbon Paste Electrode Decorated with Molybdenum Oxide by Penagos‐Llanos, Johisner, García‐Beltrán, Olimpo, Nagles, Edgar, Hurtado, John J.

“…This report allowed the detection of three substances using a carbon paste decorated with MoO2 (MoO/CPE). Tartrazine (TZ), sunset yellow (SY) and thiomersal…”
Get full text

Air-Stable Cobalt(III) and Chromium(III) Complexes as Single-Component Catalysts for the Activation of Carbon Dioxide and Epoxides by Fonseca-López, Daniela, Ezenarro-Salcedo, David, Nachtigall, Fabiane M., Santos, Leonardo S., Macías, Mario A., Rojas, René S., Hurtado, John J.

“…Cobalt­(III) and chromium­(III) salophen chloride complexes were synthesized and tested for the cycloaddition of carbon dioxide (CO2) with epoxides to obtain…”
Get full text

Development of a microcomposite with single-walled carbon nanotubes and Nd 2 O 3 for determination of paracetamol in pharmaceutical dosage by adsorptive voltammetry by Arancibia, Verónica, Penagos-Llanos, Johisner, Nagles, Edgar, García-Beltrán, Olimpo, Hurtado, John J

“…This study presents for the first time a new composite of carbon paste (CP), single-walled carbon nanotubes (SWCNTs) and Nd O (Nd ). This versatile composite…”
Get full text

Novel complexes with ONNO tetradentate coumarin schiff-base donor ligands: x-ray structures, DFT calculations, molecular dynamics and potential anticarcinogenic activity by Mestizo, Paula Daniela, Narváez, Diana M., Pinzón-Ulloa, Jesús Alberto, Di Bello, Daniela Torres, Franco-Ulloa, Sebastian, Macías, Mario A., Groot, Helena, Miscione, Gian Pietro, Suescun, Leopoldo, Hurtado, John J.

“…The synthesis of eight novel Zn(II), Co(II), Cu(II), Ni(II) and Pt(II) complexes ( 2–9 ) derived from the ONNO tetradentate coumarin Schiff-Base donor ligands,…”
Get full text

Cu(II) and Zn(II) Complexes with Dinitrobenzoates and Pyrazolyl Ligands: Structural and Thermal Stability Influence of N–H Moiety by Torres, Juan F, Macías, Mario A, Franco-Ulloa, Sebastian, Miscione, Gian Pietro, Cobo, Justo, Hurtado, John J

“…The synthesis and characterization of air-stable Cu­(II) and Zn­(II) complexes with 3,5-dinitrobenzoate (DNB) and 3,5-dimethylpyrazole (L1) or…”
Get full text

Nature of mercury inclusion in intermediate 6‐valence electron [M@Au8Hgx(PPh3)8]n+ (M = Au, Pd, Pt; x = 0‐2) protected gold superatoms: Insights from relativistic density functional theory calculations by Quintana, Constanza G., Ocayo, Fernanda, Guajardo Maturana, Raul, Hurtado, John J., Muñoz‐Castro, Alvaro

“…Superatomic clusters offer useful templates displaying distinctive physical and chemical characteristics. Here, we explore the [M@Au8(PPh3)8]n+ (M = Au, n = 3;…”
Get full text

Salophen-type Organocatalysts for the Cycloaddition of CO 2 and Epoxides under Solvent, Halide, and Metal-Free Conditions by Fonseca-López, Daniela, Ezenarro-Salcedo, David, Zapata-Rivera, Jhon, Rojas, René S, Hurtado, John J

“…8-Formyl-7-hydroxycoumarin ( ) and their derived salophen-type organocatalysts , , and were used for the synthesis of cyclic carbonates from carbon dioxide (CO…”
Get full text