Especialidad:
Simulación computacional aplicada a procesos industriales y medio ambiente. Enfoque en dinámica molecular, modelado multiescala, floculación, separación de minerales y sostenibilidad de procesos industriales.
 

Sus principales áreas de investigación son:

• Recuperación de aguas en relaves arcillosos y en agua de mar en industria minera.
• Remoción de contaminantes de iones poliatómicos en aguas de riego para la agricultura.
• Adsorción de compuestos por métodos de simulación computacional.
• Estudio de materiales laminares adsorbentes.

Proyectos

1. Engineered core-corona nanoflocculants for enhanced tailings densification and water recovery in freshwater and saline environments. Fondecyt Regular. Integrante del equipo de trabajo.
2. Geochemical stabilization of salt crusts in copper mine tailings under arid and semi-arid climates using additives to mitigate metal release under variable environmental conditions. Fondecyt Regular. Integrante del equipo de trabajo.
3. Improvement of additives for water treatment processes in mining using simulation and experiments. Fondecyt de Iniciación. Integrante del equipo de trabajo.

Publicaciones (2022 - Actualidad)

1. Luis Ríos-Colque; Pedro A. Robles; Gonzalo Renato Andrés Quezada Escalona; Víctor Ríos-Colque. Adsorption Characteristics and Mechanistic Role of Ionic Species on the Chalcopyrite (112) Surface Based on DFT Simulations. International Journal of Molecular Sciences 2026. https://doi.org/10.3390/ijms27094012.
2. Gonzalo Renato Andrés Quezada Escalona; Karien I. García; Enoque Diniz Mathe; Williams Leiva; Eder Piceros; Pedro A. Robles; Ricardo I. Jeldres. Effect of Charge Distribution Along Anionic Polyacrylamide Chains on Quartz Adsorption: A Molecular Dynamics Study. Polymers 2026. https://doi.org/10.3390/polym18030414.
3. Luis A. Ríos; Melanny J. Barraza; Pedro A. Robles; Gonzalo Renato Andrés Quezada Escalona. Chalcopyrite Flotation, Molecular Design and Smart Industry: A Review. International Journal of Molecular Sciences 2025. https://doi.org/10.3390/ijms2608361
4. Steven Nieto; Eder Piceros; Yanko Castañeda; Pedro A. Robles; Williams Leiva; Gonzalo Renato Andrés Quezada Escalona; Ricardo I. Jeldres. Compressibility and Rheology of Clay Tailings: Effects of Sodium Polyacrylate in Presence of Divalent Cations. Polymers 2025. https://doi.org/10.3390/polym17141903.
5. Steven Nieto; Eder Piceros; Gonzalo Renato Andrés Quezada Escalona; Fernando Betancourt; Pedro A. Robles; Williams Leiva; Ricardo I. Jeldres. Experimental and Molecular Dynamics Study of Pyrite Effects on the Flocculation of Clayey Tailings in Seawater. Polymers 202 https://doi.org/10.3390/polym17212895.
6. Jahir Ramos; Eder Piceros; Tiare D. Medina; Pedro A. Robles; Gonzalo Renato Andrés Quezada Escalona; Williams Leiva; Ricardo I. Jeldres. Fractionated Anionic PAM Dosing Under High Salinity: Controlling Floc Growth and Stability. Polymers 2025. https://doi.org/10.3390/polym18010050.
7. Jorge Hernán Saavedra Molina; Gonzalo Renato Andrés Quezada Escalona; Paola Daniela Bustos Gutiérrez; Joaquim Contreras; Ignacio Salazar; Pedro G. Toledo; Leopoldo Gutiérrez. Impact of Temperature, pH, Electrolytes, Approach Speed, and Contact Area on the Coalescence Time of Bubbles in Aqueous Solutions with Methyl Isobutyl Carbinol. Polymers 2025. https://doi.org/10.3390/polym17141974.
8. Gonzalo Renato Andrés Quezada Escalona; Antonia A. Vargas; Steven Nieto; Karien I. García; Pedro A. Robles; Ricardo I. Jeldres. Molecular Dynamics Study of Polyacrylamide and Polysaccharide-Derived Flocculants Adsorption on Mg(OH)? Surfaces at pH 11. Polymers 2025. https://doi.org/10.3390/polym17020227.
9. Williams Leiva; Norman Toro; Pedro A. Robles; Gonzalo Renato Andrés Quezada Escalona; Iván Salazar; Javier Flores-Badillo; Ricardo I. Jeldres. Rheology Modifying Reagents for Clay-Rich Mineral Suspensions: A Review. Polymers 2025. https://doi.org/10.3390/polym17172427.
10. Steven Nieto; Eder Piceros; Gonzalo Renato Andrés Quezada Escalona; Pedro A. Robles; Ricardo I. Jeldres. Structure–Performance Relationship of Anionic Polyacrylamide in Pyrite-Containing Tailings: Insights into Flocculation Efficiency. Polymers 2025. https://doi.org/3390/polym17081055.
11. Williams H. Leiva; Norman Toro; Pedro A. Robles; Gonzalo Renato Andrés Quezada Escalona; Iván Salazar; Ricardo I. Jeldres. Clay Tailings Flocculated in Seawater and Industrial Water: Analysis of Aggregates, Sedimentation, and Supernatant Quality. Polymers 2024. https://doi.org/10.3390/polym16101441.
12. Steven Nieto; Pedro G. Toledo; Pedro A. Robles; Gonzalo Renato Andrés Quezada Escalona; Ricardo I. Jeldres. Impact of Magnesium on the Flocculation, Sedimentation and Consolidation of Clay-Rich Tailings in Lime-Treated Seawater. Separation and Purification Technology 2024. https://doi.org/10.1016/j.seppur.2023.125633.
13. José I. Retamal; Pedro A. Robles; Gonzalo Renato Andrés Quezada Escalona; Ricardo I. Jeldres. Molecular Design and Spodumene Flotation—A Review. International Journal of Molecular Sciences 2024. https://doi.org/10.3390/ijms25063227.
14. Gonzalo Renato Andrés Quezada Escalona; Camilo Solar; Jorge Hernán Saavedra Molina; Karla Petit; Francisco J. Martin-Martínez; Luis Ernesto Arteaga-Pérez; José Ernesto Norambuena-Contreras. Operando FTIR-ATR with Molecular Dynamic Simulations to Understand the Diffusion Mechanism of Waste Tire-Derived Pyrolytic Oil for Asphalt Self-Healing. Fuel 2024. https://doi.org/10.1016/j.fuel.2023.129834.
15. Jahir J. Ramos; Steven Nieto; Gonzalo Renato Andrés Quezada Escalona; Williams Leiva; Pedro A. Robles; Fernando Betancourt; Ricardo I. Jeldres. Rheological Behavior of Clay Tailings in the Presence of Divalent Cations and Sodium Polyacrylate: Insights from Molecular Dynamics Simulations. Polymers 2024. https://doi.org/10.3390/polym16213091.
16. Miguel Segovia; Felipe M. Galleguillos Madrid; Carlos Portillo; Ezequiel Martínez Rojas; Sandra Gallegos; Jonathan Castillo; Iván Salazar; Gonzalo Renato Andrés Quezada Escalona; Norman Toro. The Positive Impact of the Open Access Scientific Publishing in Chile. Publications 2024. https://doi.org/10.3390/publications12040041.
17. Omar Alvarado; Gonzalo Renato Andrés Quezada Escalona; Jorge Hernán Saavedra Molina; Roberto Eduardo Rozas Cárdenas; Leopoldo Gutiérrez; Pedro G. Toledo. Alkali Halide and MIBC Interaction at Typical Flotation Interfaces in Saline Water as Determined by Molecular Dynamics Simulations. Minerals 2023. https://doi.org/10.3390/min13050665.
18. Gonzalo Renato Andrés Quezada Escalona; Norman Toro; R. S. Krishna; Subhabrata Mishra; Pedro A. Robles; Iván Salazar; Enoque Mathe; Ricardo I. Jeldres. Experimental and Simulation Studies on Hematite Interaction with Na-Metasilicate Pentahydrate. Molecules 2023. https://doi.org/10.3390/molecules28083629.
19. Karien I. García; Gonzalo Renato Andrés Quezada Escalona; José L. Arumí; Pedro G. Toledo. Phosphate Aggregation, Diffusion, and Adsorption on Kaolinite in Saline Solutions by Molecular Dynamics Simulation. Applied Clay Science 2023. https://doi.org/10.1016/j.clay.2023.106844.
20. Gonzalo Renato Andrés Quezada Escalona; Francisco Retamal; Matías Jeldres; Ricardo I. Jeldres. Understanding the Behavior of Sodium Polyacrylate in Suspensions of Silica and Monovalent Salts. Polymers 2023. https://doi.org/10.3390/polym15193861.
21. Gonzalo Renato Andrés Quezada Escalona; Williams Leiva; Jorge Hernán Saavedra Molina; Pedro A. Robles; Edelmira Gálvez; Ricardo I. Jeldres. A Molecular Dynamics Simulation of Polymers’ Interactions with Kaolinite (010) Surfaces in Saline Solutions. Polymers 2022. https://doi.org/10.3390/polym14183851.
22. Gonzalo Renato Andrés Quezada Escalona; Andrés Mejía; Eder Piceros; Pedro A. Robles; Steven Nieto; Edelmira Gálvez; Ricardo I. Jeldres. Describing the Adsorption of Sodium Tripolyphosphate on Kaolinite Surfaces in a Saline Medium by Molecular Dynamics. Minerals Engineering 20 https://doi.org/10.1016/j.mineng.2021.107280.
23. Gonzalo Renato Andrés Quezada Escalona; Eder Piceros; Jorge Hernán Saavedra Molina; Pedro A. Robles; Ricardo I. Jeldres. Polymer Affinity with Quartz (101) Surface in Saline Solutions: A Molecular Dynamics Study. Minerals Engineering 2022. https://doi.org/10.1016/j.mineng.2022.107750.
24. Omar Alvarado; Gonzalo Renato Andrés Quezada Escalona; Jorge Hernán Saavedra Molina; Roberto Eduardo Rozas Cárdenas; Pedro G. Toledo. Species Surface Distribution and Surface Tension of Aqueous Solutions of MIBC and NaCl Using Molecular Dynamics Simulations. Polymers 2022. https://doi.org/10.3390/polym14101967.