Daniel Jaramillo-Vélez
Current Organizations / Institutes
The organizations/institutes from the scholar's latest article
Daniel Jaramillo-Vélez has a total of 7 co-authors. Here are the top co-authors by number of shared publications:
- Andrea Flórez-Caro
Programa de Ingeniería en Nanotecnología, Universidad Pontificia Bolivariana, Circular 1—No 70-01, Medellín 050031, Colombia
1 shared publication - Catalina Gómez Hoyos
Programa de Ingeniería en Nanotecnología, Universidad Pontificia Bolivariana, Circular 1—No 70-01, Medellín 050031, Colombia
1 shared publication - Esteban Eduardo Ureña-Benavides
The University of Texas at San Antonio
1 shared publication - Jorge Velásquez-Cock
Programa de Ingeniería en Nanotecnología, Universidad Pontificia Bolivariana, Circular 1—No 70-01, Medellín 050031, Colombia
1 shared publication - Luis David Botero
Programa de Ingeniería en Nanotecnología, Universidad Pontificia Bolivariana, Circular 1—No 70-01, Medellín 050031, Colombia
1 shared publication - Mariana Ochoa-Castaño
Grupo de Investigaciones Agroindustriales, Universidad Pontificia Bolivariana, Circular 1 No. 70-01, Medellín 050031, Colombia
1 shared publication
Latest Publications
- Open Access
Green Synthesis of Silica Nanoparticles from Sugarcane Bagasse Ash for Stable Pickering Oil-in-Water Emulsions
The present study explores novel alternatives for the exploitation of sugarcane bagasse ash by obtaining and modifying SiO2 nanoparticles through a green synthesis method. The hydrophilic nature of the nanoparticles was modified using oleic acid. The nanoparticles were characterized using FTIR, FESEM, and DLS, and their performance in the stabilization of Pickering emulsions was also studied. FESEM micrographs of the nanoparticles revealed an irregular and agglomerated structure. EDS confirmed that their main components are oxygen and silicon, and ATR-FTIR spectra demonstrated that oleic acid effectively modified the nanoparticles. Subsequently, O/W Pickering emulsions were fabricated by combining rotor–stator homogenization and probe ultra-sonication, using dodecane and liquid paraffin as model oil phases and SiO2 NPs as stabilizers. Static light scattering measurements showed that the emulsions exhibited polydispersity, while photographic monitoring confirmed that their physical stability was affected by the concentrations of oleic acid and nanoparticles: concentrations of up to 20.0 wt% and 1.0 wt%, respectively, produced emulsions that remained stable for 7 to 15 days. This study identifies the behavior and challenges associated with novel pathways for the valorization of sugarcane bagasse ash. The stabilization of Pickering emulsions using the obtained SiO2 NPs highlights their potential in pharmaceutical, cosmetic, and food applications.
Open AccessGreen Synthesis of Silica Nanoparticles from Sugarcane Bagasse Ash for Stable Pickering Oil-in-Water Emulsions
The present study explores novel alternatives for the exploitation of sugarcane bagasse ash by obtaining and modifying SiO2 nanoparticles through a green synthesis method. The hydrophilic nature of the nanoparticles was modified using oleic acid. The nanoparticles were characterized using FTIR, FESEM, and DLS, and their performance in the stabilization of Pickering emulsions was also studied. FESEM micrographs of the nanoparticles revealed an irregular and agglomerated structure. EDS confirmed that their main components are oxygen and silicon, and ATR-FTIR spectra demonstrated that oleic acid effectively modified the nanoparticles. Subsequently, O/W Pickering emulsions were fabricated by combining rotor–stator homogenization and probe ultra-sonication, using dodecane and liquid paraffin as model oil phases and SiO2 NPs as stabilizers. Static light scattering measurements showed that the emulsions exhibited polydispersity, while photographic monitoring confirmed that their physical stability was affected by the concentrations of oleic acid and nanoparticles: concentrations of up to 20.0 wt% and 1.0 wt%, respectively, produced emulsions that remained stable for 7 to 15 days. This study identifies the behavior and challenges associated with novel pathways for the valorization of sugarcane bagasse ash. The stabilization of Pickering emulsions using the obtained SiO2 NPs highlights their potential in pharmaceutical, cosmetic, and food applications.