ABOUT US
The Piñero Group's efforts are directed towards the study of new metal complexes formed from the modification of four family of ligands: dithiolenes, salen-type, phthalocyanines, and pyrazoles. We are interested in the tuning of the magnetic and electrochemical properties of the complexes synthesized by directly functionalizing the ligands and connecting the building units with paramagnetic linkers. The study of each complex brings new fundamental questions to be answered by the in depth study of their structural, spectroscopic magnetic and electrochemical characterization. The research activity of the group is directed towards the PIs four projects in Materials Science and Nanomedicine concerning the topics of molecular magnets, bioimaging, cancer therapy, sensors and catalysis
THE PI: DR. DALICE M. PIÑERO CRUZ
Dr. Piñero Cruz is a former student of the University of Puerto Rico, Rio Piedras campus. She obtained her doctoral degree in 2009 with a thesis titled: “Coordination Chemistry of Fe-Pyrazole/ate Complexes Based on the Study of their Structural, Electrochemical, Magnetic and Spectroscopic Properties”, mentored by Raphael G. Raptis. As a student, she had the opportunity of becoming an invited researcher at the University of Notre Dame, Indiana, to work at the Radiation Laboratories on the “Mechanistic and Energetic Aspects of the Thermal and Photochemical Redox Chemistry of the Octanuclear Cubane Complexes, Fe(III)8(μ4-O4) (pyrazolate)12X4 (X = Cl or Br)” through a collaboration with Guillermo Ferraudi.
She obtained a thesis dissertation award from the National Science Foundation that founded three visits to the Institute of Material Science in Demokritos, Greece, for conducting “Mössbauer Spectroscopic Studies of Redox-Active Fe4O4-Cubanes” with the training and supervision of Yiannis Sanakis.
In June 2009 Dr. Piñero joined the ‘Groupe de Sciences Moléculaires: Matériaux Photo-, Piézo-, Thermo-sensibles’ at the ‘Institut de Chimie de la Matière Condensée de Bordeaux’, France, as a postdoctoral fellow from the Centre National de la Recherche Scientifique. She worked under the supervision of Corine Mathonière on the project of “Multi-Shell Magnétiques Nanoparticules de Coordination (MS MGNP)” while collaborating with Rodolphe Clérac from the Centre de Recherche Paul Pascal, Pessac, on the “Synthesis of pyridine-based ligands for magnetic studies of cyanide linked transition metal complexes capable of undergoing photo-induced electron transfer processes”. Thereafter, she joined the MaCSE Group at the University of Rennes, France, to work on the synthesis and magnetic properties of “Nickel-Dithiolene Complexes as Metallo-Ligands”under the supervision ofMarc Fourmigué. Lastly, she joined the University of Bordeaux as an adjunct assistant professor and worked as a researcher at the Centre de Recherche Paul Pascal, on the “Synthesis of Single Molecule Magnets from polyamines spyder-like building blocks”. In 2014 she was hired as an assistant professor of the Chemistry Department at the UPR-RP where she has started a research laboratory group on Coordination Chemistry.
University of Puerto Rico-Rio Piedras Campus
Chemistry Graduate Program
Email: dalice.pinero@upr.edu
MEMBERS
Graduate Students
Keysha T. Cordero Giménez
Ph. D. Candidate
Born in San Juan, Puerto Rico. She received her B.S. (2016) from the University of Puerto Rico-Cayey Campus. She joined Piñero’s Lab on Spring 2018. Her research is focused on the design of theranostic agents dithiolene-based systems with nickel and paramagnetic manganese and iron, for the development of MRI contrast agents and photothermal agents for monitoring and cancer therapy.
Javier O. Rivera Reyes
Ph. D. Candidate
Born in San Juan, Puerto Rico. He received his B.S. in Chemistry (2018) from the University of Puerto Rico-Cayey. He joined Piñero's Lab on Spring of 2020. His research is in the development of Schiff bases Metal Complexes as electro-catalyst for CO2 reduction (CORR).
Carmen L. Metzler Fernández
Ph. D. Candidate
Born in Pennsylvania, USA. She received her B.S. in Chemistry (2019) from the Emory University. She joined Piñero's Lab on Spring of 2020. Her research is in the development of metal phthalocyanine gas sensors with single molecule magnet components.
John A. Cruz Lozada
Ph. D. Candidate
Born in Humacao, Puerto Rico. He received his B.S. in Chemistry (2019) from the University of Ana G. Méndez-Gurabo. He joined Piñero's Lab on Spring of 2020. His research is in the development of heterojunction base gas sensors.
Crystal Otero Vélez
Ph. D. Student
Born in Caguas, Puerto Rico. She received her B.S. in Chemistry (2019) from the University of Ana G. Méndez-Gurabo. She joined Piñero's Lab on Spring of 2020. Her research is in the development of metal
phthalocyanine NOx gas sensing.
Undergraduate Students
Alanys V. Luna Ramírez
Undergraduate Chemistry Student
Born in BayamÏŒn, Puerto Rico. She is currently pursuing a bachelor’s degree in chemistry. She entered the Coordination Chemistry Lab in August 2021, where she is currently working on using Metal Salen Complexes as Electro-catalysts for CO2 Conversion to CO with the guidance of Javier O. Rivera Reyes.
Christian González Dumeng
Undergraduate Chemistry Student
Born in Moca, Puerto Rico. He is currently pursuing a bachelor's degree in Chemistry at the University of Puerto Rico, Rio Piedras Campus. He joined the Coordination Chemistry lab on the fall of 2020 as part of his transfer from the University of Puerto Rico, Aguadilla. His research focus on the development of dithiolene complexes for their application in photothermal therapy. At the same time, Christian works with his graduate student Keysha T. Cordero Gimenez.
Keythzannette Colón Báez
Undergraduate Chemistry Student
Born in Caguas, Puerto Rico. She is currently pursuing a bachelor’s degree in chemistry. She entered the Coordination Chemistry Lab in August 2022, where she is currently working on the synthesis of doped-iron oxide nanoparticles under the guidance of Victoria Soto.
Victoria Y. Soto Díaz
Ph. D. Candidate
Born in Caguas, Puerto Rico. She received her B.S. in Chemistry(2018) from the University of Puerto Rico-Río Piedras Campus. She joined Piñero’s Lab on Spring 2019. Her research is focused on the developement of a nanotheranostic agentsd for the development of MRI contrast agents and photothermal agents for monitoring and cancer therapy.
Past Graduate Students:
Dr. Keily Gutiérrez
Dr. Jean C. González Espiet
Giancarlo Berrios
Post-bachelors student
Born in Bayamón, Puerto Rico. He received his B.Sc. in Chemistry at the University of Puerto Rico-Rio Piedras Campus on June 30th of 2022. He joined Dr. Piñero’s Laboratory in January of 2022. His researched is focused on developing fluorinated metal phthalocyanines for gas sensing nanomaterial development to detect specific toxic gas for laboratory and industrial purposes.
Past Undergraduate Students:
José Muñoz
Priscilla Marie Rodríguez
Jesbaniris Bas
Jean Marcos Vidal
Wilfredo Pedreira
Adrian Rivera
Kistian Calderón
Yarixa Cintrón
Claudia Ortíz
Keissa Hernández
Kianira Santiago
Alexia Guzmán
Stephanie Ortíz
Nicole Santiago
Jéssica Ríos
Mario Vendrell
Diego Vélez
Grace Méndez
Gretchen Garay
Carlos González
Juan Cintrón
Daniel Rivera
Angel Hernández
Pablo Hernández
Cristina Nieves
Jazmin Calimano
Oliver Pichardo
Mariely Cruz
Dara Rodríguez
Karlie Díaz
Glorimar Miranda
Sebastian Montes
Alfonso Rivero
Andrea Guerrero
Isis Carmona
Sebastian Suárez
Valeria Schultz