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Dr. Rodrigo Segura

E-mail: 
rodrigo.segura@usach.cl

Biografía: 
Profesor Asociado en la Universidad de Santiago de Chile desde el año 2008.  Obtuvo su título de Químico y grado de  Licenciatura en Química en el año 1998. Actualmente, es Doctor en Ciencias Exactas mención Química en el 2005 de la Pontificia Universidad de Chile. 
Realizó su Posdoctorado en el Laboratorio de Aguas, Ingeniería Hidráulica y Ambiental en la Facultad de Ingeniería de la Pontificia Universidad Católica de Chile (2005). Posdoctorado FONDECYT(2006-2008). 
Lineas de Investigación: 
  • Desarrollo de metodologías analítica para la determinación de metales  pesados y compuestos orgánicos aplicando técnicas electroanalíticas  utilizando electrodos modificados con nanomateriales.
  • Estudio del efecto del agua  de mar en el proceso de flotación de minerales sulfurados 
 
Proyectos: 
  • FONDECYT 3060070 (2006-2007). “Caracterización y aplicación analítica del electrodo de bismuto”. Investigador Responsable.
  • FONDECYT 11070046 (2007-2010). “Optimization of methodology of stripping voltammetry for the determination of trace metals in environmental samples using a bismuth film electrode”. Investigador Responsible.
  • FONDECYT 11070046 (2012-2015). “Syntheses and reactivity of crown ether and mixed-aza-macrocyles cyclopentadienyl rhenium complexes as a potential electrochemical and optical sensors”. Co-Investigador.
  • DICYT 021242SS (2012-2014). “Development of analytical methods for the determination of trace metals in natural water used electrochemical technical with modified bismuth film electrodes”. Investigador Responsable.
  • FONDECYT 11402206 (2014-2017). “Chemically modified electrodes based on macrocyclic compounds type crown ethers for electroanalytical determination of trace metal in real samples”. Investigador Responsable.
  • FONDECYT 1180804 (2018-2021). “Development of analytical methodology based on electrochemical sensors with carbon and/or gold nanomaterials for the determination of metal ions”. Investigador Responsable.
  • FONDECYT 1191130 (2019-2023). “Organometallic complexes linked to macrocycle groups by a chelating bridging ligand, as potential water-soluble or immobilized sensors for the detection of metal ions”. Coinvestigador.
  • FONDECYT 1211637 (2021-2023: “Development of electroanalytical methodologies for redox speciation of metal(loids) (As, Cr, se) and chromatographic methodologies for the determination of organometallics species (As, Hg, sS) in different matrices.” Coinvestigador
  • Proyecto CORFO CODIGO 21SNM-15668888 (2021). Sensor electroquímico para la determinación de litio en salmueras productivas. Investigador.
 
Últimas Publicaciones: 
• 32 publicaciones
• Participación en congresos: 40 internacionales y 28 nacionales 
 
  • I.Crivelli, B. Loeb, R. Segura, C. Andrades, M.A. Francois. “Experimental evidence of the disproportionation equilibrium in copper mixed valence complexes”. Polyhedron (2000), 19, 22-23, 2289-2295. https://doi.org/10.1016/S0277-5387(00)00491-5
  • V. Arancibia, R. Segura, J.C. Leiva, R. Contreras, M. Valderrama. “Supercritical Fluid Extraction-Gas Chromatography or SFE-Electroanalysis of Metal Chelates from Different Sample Matrices”. Journal Chromatographic Sience (2000), 38,1, 21-26. https://doi.org/10.1093/chromsci/38.1.21
  • V. Arancibia, M. Valderrama, P. Rodríguez, F. Hurtado, R. Segur. “Quantitative extraction of sulfonamides in meats by supercritical methanol-modified carbon dioxide: A foray into real-world sampling”. Journal of Separation Science (2003), 26, 18, 1710-1716. https://doi.org/10.1002/jssc.200301501
  • Verónica Arancibia, Mauricio Valderrama, Andrea Madariaga, María Carolina Zúñiga and Rodrigo Segura. “Extraction of nitrofurantoin and its toxic metabolite from urine by supercritical fluids. Quantitation by high performance liquid chromatography with UV detection”. Talanta (2003), 61, 3, 377-383. https://doi.org/10.1016/S0039-9140(03)00276-5
  • Verónica Arancibia, Loreto Alarcón, Rodrigo Segura. “Supercritical fluid extraction of cadmium as Cd-oxine complex from human hair - Determination by square wave anodic or adsorptive stripping voltammetry”. Analytica Chimica Acta (2004), 502, 2, 189-194. https://doi.org/10.1016/j.aca.2003.10.007
  • V. Arancibia M , M Valderrama, Alex López M. R. Segura, M. Carolina Zuñiga. “Extraction of arsenic as diethyl dithiophosphate complex with supercritical fluid and quantitation by cathodic stripping voltammetry”. Talanta (2006), 68, 1567-1573. https://doi.org/10.1016/j.talanta.2005.08.017 
  • R. Segura, V. Arancibia, M.C. Zúñiga. “Distribution of copper, zinc, lead and cadmium concentration in stream sediments from the Mapocho River in Santiago, Chile”. Journal of Geochemical Exploration (2006), 91, 71-80. https://doi.org/10.1016/j.gexplo.2006.03.003
  • Claudia Peña., Verónica Arancibia, Rodrigo Segura. “Evaluation of powdered infant formula milk as chelating agents for copper under gastric conditions of a stimulated baby stomach”. Analytical Sciences (2006), 22, 1197-1200.  https://doi.org/10.2116/analsci.22.1197
  • R. Segura, M. I. Toral, V. Arancibia. “Determination of Fe (III) by Adsorptive Stripping Voltammetric with 1-(2-pyridylazo)-2- naphthol using a Bismuth Films electrode”. Talanta (2008), 75, 973-977. https://doi.org/10.1016/j.talanta.2007.12.038.
  • Veronica Arancibia, Manuel Zuñiga, Maria Carolina Zuñiga, Rodrigo Segura Miquel Esteban “Optimization of experimental parameters in the determination of Zinc in sea water by adsorptive stripping voltammetry”. Journal of The Brazilian Chemical (2010), 21, 2, 255-261. https://doi.org/10.1590/S0103-50532010000200010
  • Rodrigo Segura, Milenco Pradena, Deny Pinto, Fernando Godoy, Verónica Arancibia and Edgar Nagles. “Adsorptive Stripping Voltammetry of Nickel with 1-nitroso-2-napthol using a Bismuth Film electrode”. Talanta (2011), 85, 5, 2316 -2319. https://doi.org/10.1016/j.talanta.2011.07.062
  • Mattos, IL; Padilla, F; Zagal, JH; Falcao, EHL; Segura R. “Screen-printed electrode modified with silver hexacyanoferrate-nafion (r) for ascorbic acid determination”. Journal of the Chilean Chemical Society (2011), 56, 3, 803-807. http://dx.doi.org/10.4067/S0717-97072011000300018
  • Nagles, Edgar; Arancibia, Veronica; Rojas, Carlos; Segura, Rodrigo. “Nafion-mercury coated film electrode for the adsorptive stripping voltammetric determination of lead and cadmium in the presence of pyrogallol red”. Talanta (2012), 99, 119-124. https://doi.org/10.1016/j.talanta.2012.05.028
  • Manuel A. Leiva G., Sandra Morales and Rodrigo Segura. “Comparative Measurements 1 and their Compliance with Standards of 2 Total Mercury Analysis in Soil by Cold Vapour and Thermal 3 Decomposition, Amalgamation, and Atomic Absorption Spectrometry”. Water, Air, & Soil Pollution (2013), 224, 3, 1390. https://doi.org/10.1007/s11270-012-1390-3
  • Y. Tapia, O. Diaz , C. Pizarro, R. Segura, M. Vines, G. Zúñiga, E. Moreno-Jiménez. “Atriplex atacamensis and Atriplex halimus resist As contamination in Pre-Andean soils (northern Chile)”. Science of the Total Environment (2013), 450-451, 188-196. https://doi.org/10.1016/j.scitotenv.2013.02.021
  • Rodrigo Segura, Jorge Vélez, Fernando Godoy, María P. Oyarzun, Pamela Sepúlveda “Determination of cadmium and lead by anodic Stripping Voltammetry with glassy carbon electrode modified with polymeric meso-tetrakis tetrabromo thenyl porphyrin. (TBrTP)”. International Journal of Electrochemical Science (2013), 8, 10, 12005-12014.
  • Fernando Godoy, Alejandra Gómez, Rodrigo Segura, Fabio Doctorovich, Juan Pellegrino, Carina Gaviglio, Paulina Guerrero, A. Hugo Klahn , Mauricio Fuentealba , María Teresa Garland. “Synthesis, structure, and reactivity of (h5:h1-C5Me4(CH2)2NMe2) Re(CO)2. Electron transfer behavior of a nitrosyl derivative. Journal of Organometallic Chemistry (2014). 765, 8-16. https://doi.org/10.1016/j.jorganchem.2014.04.019. 
  • Fernando Godoy, Alejandra Gómez, Nicolas Agurto, Michelle Muñoz, Rodrigo Segura, Carlos P. Silva, Jorge Pavez, José H. Zagal, A. Hugo Klahn, M. Fuentealba, Andres Ibañez, Maria Teresa Garlan. “Synthesis, reactivity, electrochemical behaviour, and molecular structure of crown ether cyrhetrene complexes”. Journal of Organometallic Chemistry (2015), 788, 2-48. https://doi.org/10.1016/j.jorganchem.2015.04.031.
  • Rodrigo Segura, Jaime Pizarro, Eduardo Pino, Karina Diaz Alan Placencio Fernando Godoy and Francisco Recio. “Development of electrochemical sensors for the determination of selenium using electrodes modified with gold nanoparticles (AuNPs)”. Sensors & Actuators: B. Chemical (2015), 220, 263-269. https://doi.org/10.1016/j.snb.2015.05.016.
  • Karina Vázquez, Christian Espinosa-Bustos, Jorge Soto-Delgado, Ricardo A. Tapia , Javier Varela , Estefanía Birriel , Rodrigo Segura, Jaime Pizarro, Hugo Cerecetto, Mercedes González , Margot Paulino and Cristian O. Salas. “New aryloxy-quinone derivatives as potential Anti-Chagasic agents: Synthesis, trypanosomicidal activity, electrochemical properties, pharmacophore elucidation and 3D-QSAR analysis”. RSC Advances (2015), 220, 263-269. https://doi.org/10.1039/C5RA10122K.
  • Rodrigo A. Segura, Jaime A. Pizarro, María P. Oyarzun, Alejandra Castillo, Alan Placencio. “Determination of lead and cadmium in water samples by adsorptive stripping voltammetry using a bismuth film/1-Nitroso-2-Napthol/Nafion modified glassy carbon electrode. International Journal of Electrochemical Science 2016, 11, 1707-1719. http://electrochemsci.org/papers/vol11/110201707.pdf
  • Oscar P. Díaz, Yasna Tapia, Rubén Pastene3, Marcia Cazanga, Rodrigo Segura, Santiago Peredo. Lupinus microcarpus Growing in Arsenic—Agricultural Soils from Chile: Toxic Effects and It Potential Use as Phytoremediator Plant. Journal of Environmental Protection 2016, 7, 116-128. IF=. https://www.scirp.org/journal/paperinformation.aspx?paperid=63069.
  • Erick Flores, Jaime Pizarro, Fernando Godoy, Rodrigo Segura, Alejandra Gómez, Nicolás Agurto, Pamela Sepúlveda. “An electrochemical sensor for the determination of Cu(II) using a modified electrode with ferrocenyl crown ether compound by square wave anodic stripping voltammetry”. Sensors & Actuators: B. Chemical 2017,251,433-439. https://doi.org/10.1016/j.snb.2017.05.058
  • Margarita Montoya, Jaime A Valderrama, Rodrigo Segura, Judith Faundes, Sophia Mejías, J. Andrea Ibacache. “Synthesis and Antiproliferative Evaluation of New Aminoisoquinolinequinones Derived from p-Phenylenediamine, Benzidine and Dapsone”. Journal of Chemical and Pharmaceutical Research 2017,9, 6, 127-134. 
  • Rodrigo Segura, Karina Díaz, Jaime Pizarro, Alan Placencio, Diego Tapia and Ángelo Fajardo. “Anodic Stripping Voltammetric Determination of Lead using a Chemically Modified Electrode based on Aza Crown Ether”. Journal of the Chilean Chemical Society. 2017, 62, 4, 3726-3730. http://dx.doi.org/10.4067/s0717-97072017000403726
  • Jaime Pizarro, Erick Flores, Victor Jimenez, Tamara Maldonado, Claudio Saitz Andres Vega, Fernand Godoy, Rodrigo Segura. “Synthesis and characterization of the first cyrhetrenyl-appended calix[4]arene macrocycle and its application as an electrochemical sensor for the determination of Cu(II) in bivalve molluscs using square wave anodic stripping voltammetry”. Sensors & Actuators: B. Chemical 2019, 281, 115-122. https://doi.org/10.1016/j.snb.2018.09.099
  • Rodrigo Segura, Angelo Fajardo, Jaime Pizarro, Diego Tapia, Pablo Jara. “Determination of norepinephrine using a glassy carbon electrode modified with graphene quantum dots and gold nanoparticles by square wave stripping voltammetry”. Journal of Applied Electrochemistry 2019, 49, 4, 423-432. https://doi.org/10.1007/s10800-019-01288-0
  • Jaime Pizarro, Rodrigo Segura, Diego Tapia, Soledad Bollo, Paulina Sierra‐Rosales. “Electroanalytical determination of Cd(II) and Pb(II) in bivalve mollusks using electrochemically reduced graphene oxide-based electrode”. Electroanalysis 2019, 31. 2199-2205. https://doi.org/10.1002/elan.201900061 
  • Christian Espinosa‐Bustos, Karina Vázquez, Javier Varela, Hugo Cerecetto,Margot Paulino, Rodrigo Segura, Jaime Pizarro, Brenda Vera, Mercedes González, Ana M. Zarate, Cristian O. Salas. “New Aryloxy-Quinone Derivatives with Promising Activity on Trypanosoma cruzi”. Archiv der Pharmazie 2020, 353, 1900213. https://doi.org/10.1002/ardp.201900213
  • Pizarro, J., Segura, R., Tapia, D., Navarro, F., Fuenzalida, F., & Aguirre, M. J. “Inexpensive and green electrochemical sensor for the determination of Cd(II) and Pb(II) by square wave anodic stripping voltammetry in bivalve mollusks”. Food Chemistry, 2020, p. 126682. https://doi.org/10.1016/j.foodchem.2020.126682
  • Paulina Meza, Silvana Vaccaro, Judith Faundes, Rodrigo Segura, Juana Andrea Ibacache. “Short and Improved Synthesis of Cytotoxic Homodimers with an Isoquinoline Structure”. 2020,71, 5, 58-64. https://doi.org/10.37358/RC.20.5.8113. 
  • Claudia Núñez, Juan José Triviño, Rodrigo Segura, Verónica Arancibia. Development of a fast and sensitive method for determination of As(III) at trace levels in urine by differential pulse anodic voltammetry using a simple graphene screen-printed electrode. Microchemical Journal 159 (2020): 105393. https://doi.org/10.1016/j.microc.2020.105393