selected publications academic article Single and Multi-component Adsorptive Removal of Bisphenol A and 2,4-Dichlorophenol from Aqueous Solutions with Transition Metal Modified Inorganic-Organic Pillared Clay Composites: Effect of pH and Presence of Humic Acid. Single and Multi-component Adsorptive Removal of Bisphenol A and 2,4-Dichlorophenol from Aqueous Solutions with Transition Metal Modified Inorganic-Organic Pillared Clay Composites: Effect of pH and Presence of Humic Acid. 312:262-271. 2016 Transition Metal Modified Mesoporous Silica Adsorbents with Zero Microporosity for the Adsorption of Contaminants of Emerging Concern (CECs) from Aqueous Solutions.. Chemical Engineering Journal . 264:152-164. 2015 A Hierarchical Porous Carbon – Mn+[FAU] (Mn+=Ni2+ or Cu2+) Adsorbent: Synthesis, Characterization and Adsorption of Salicylic Acid from Water. Microporous and Mesoporous Materials. 200:225-234. 2014 Antimicrobial nanomaterials as water disinfectant: Applications, limitations and future perspectives . Science of the Total Environment . 466-467:1047-1059. 2014 Quantum Dots of ZnSe(S) Doped with Copper as Nanophotocatalyst in the Degradation of Organic Dyes. J. Nanosci. Nanotechnol.. 14:1-7. 2014 Removal of Salicylic Acid and Carbamazepine from Aqueous Solution with Y-Zeolites Modified with Extraframework Transition Metal and Surfactant Cations: Equilibrium and Fixed-Bed Adsorption . Journal of Environmental Chemical Engineering . 2:899-906. 2014 Single and Multi-Component Adsorption of Salicylic Acid, Clofibric Acid, Carbamazepine and Caffeine from Water onto Transition Metal Modified and Partially Calcined Inorganic-Organic Pillared Clay Fixed Beds . Journal of Hazardous Materials. 2014 Size-controlled synthesis of MgO nanoparticles and the assessment of their bactericidal capacity . Materials Research Society Symposium Proceedings . 1547:135-140. 2014 Effect of surface functionalization on the adsorption of arsenic using magnetite nanocrystals . Adsorption Science and Technology. 31:807-822. 2013 Entrapment of tyre crumb rubber in calcium-alginate beads for triclosan removal . Adsorption Science and Technology. 31:931-942. 2013 LC-ICPMS speciation of arsenite and arsenate oxyanions mixtures during their adsorption with dried sludge. Anal. Methods. 5:1583-1589. 2013 Photocatalytic activity of quantum dot-magnetite nanocomposites to degrade organic dyes in the aqueous phase . Journal of Materials Chemistry A. 1:5509-5516. 2013 Removal of inorganic arsenic oxyanions using Ca-Fe(III) alginate beads. Desalin, Water Treat. 51:2162-2169. 2013 Preparative size-exclusion chromatography for separation and purification of water-stable Cd-based quantum dots. Anal. Methods. 4:3127. 2012 Sorption of triclosan onto tyre crumb rubber . Adsorption Science and Technology. 30:831-845. 2012 Transition Metal Modified and Partially Calcined Inorganic-Organic Pillared Clays for the Adsorption of Salicylic Acid, Clofibric Acid, Carbamazepine and Caffeine from Water . Journal of Colloid Interface . 386:381-391. 2012 Transition metal modified and partially calcined inorganic-organic pillared clays for the adsorption of salicylic acid, clofibric acid, carbamazepine, and caffeine from water. J. Colloid Interface Sci.. 386:381. 2012 Titanium(IV) Complexes : Cytotoxicity and Cellular Uptake of Titanium(IV) Complexes on Caco-2 Cell Line. Toxicology in Vitro. 24:178-183. 2010 Use of human bronchial epithelial cells (BEAS-2B) to study immunological markers resulting from exposure to PM 2.5 organic extract from Puerto Rico. Toxicol. Appl. Pharmacol.. 243:381. 2010 Removal of As from Aqueous Solutions with Alginate Based-Magnetic Nancomposites . Nanotechnology. 1:395-398. 2009 Removal of Cu(II) from aqueous solutions by recycled tire rubber . Desalination. 249:515-518. 2009 Synthesis and Characterization of Alginate Based-Magnetic Nancomposite . Nanotechnology. 2:495-498. 2009 Structure-Activity Studies of Ti(IV) Complexes: Aqueous Stability and Cytotoxic properties in colon cancer HT-29 cells. Journal of Biological Inorganic Chemistry (JBIC). 13:685-692. 2008 Optimization of Magnetic Properties in Cobalt Ferrite Nanocrystals . Nanotechnology. 4:281-284. 2007 Tuning of Magnetic Properties in Cobalt Ferrite Nanocrystals . Journal of Applied Physics. 103:75-12. 2007 Molybdeonoce-oligonucleotide binding study at Physiological pH using NMR spectroscopy and cyclic voltammetry. Biorg. Med. Chem.. 14:8683. 2006 Characterization and Differentiation of High Energy Cyclic Organic Peroxides by GC/FT-IR, GC-MS, FT-IR, and Raman Microscopy. Proceedings of SPIE. 5778:347-358. 2005 Characterization and differentiation of high energy cyclic organic peroxides by GC/FT-IR, GC-MS, FT-IR, and Raman microscopy, Sensors, and Command, Control, Communications, and Intelligence (C3I) Technologies for Homeland Security and Homeland Defense IV 2005 Study of titanocene-DNA and molybdenocene-DNA interactions by inductive coupled plasma atomic absorption spectroscopy. Anal. Bioanal. Chem.. 379:399-403. 2004 Sorption of Triclosan onto Tire Crumb Rubber (In Press)2012. Adsorption Science and Technology. Sorption study of toluene and xylene in aqueous solutions by recycled tires crumb rubber. J. Hazard. Mater.. 185:107-111. conference poster Fixed-bed Adsorption of Contaminants of Emerging Concern from Water using Cu2 Amino Grafted SBA-15. 253th ACS National Meeting & Exposition. 2017 Transition Metal Modified Mesoporous Silica Adsorbents with Zero Surface Microporosity for the Adsorption of Contaminants of Emerging Concern from Aqueous Solutions. 250th National Meeting & Exposition. 2015
other research activities Fostering experiential learning to establish a pipeline from K-12 to graduate programs into a synergistic collaboration between STEM disciplines: agricultural, environmental and nanoscale science and engineering PI 2012 - 2015 UPR-Mayaguez center for education and training in agricultural and related sciences (CETARS): consolidating the pipeline in agriculture and natural resources from K-12 to the field PI 2011 - 2015 Center for Education and Training in Agricultural and Related Sciences (CETARS), Division of Community and Education PI 2010 - 2013 Development of Audiovisual Tools for Integrating the Analytical Laboratory and Class Sessions Collaborator - 2000
reviewer of Journal of Environmental Science and Technology (Journal) Journal of Hazardous Materials (Journal)
professional service activities Interamerican University of Puerto Rico San German Associate Professor 1989 - 1996
education and training Ph.D. in Analytical Chemistry, University of Nebraska, Lincoln 1989 M.Sc. in Analytical Chemistry, University of Nebraska, Lincoln 1986 B.Sc. in Chemistry, Interamerican University of Puerto Rico 1981 Armed Forces Institute of Pathology 1991