A5000211208- Gold and Silver Nanoparticles Synthesis and Applications
- Advanced Chemical Sensor Technologies
- Meat and Animal Product Quality
- Educational and Organizational Development
- Catalytic Processes in Materials Science
- nanoparticles nucleation surface interactions
- Olfactory and Sensory Function Studies
- Laser-induced spectroscopy and plasma
- Educational Innovations and Technology
- Laser-Ablation Synthesis of Nanoparticles
- Food Supply Chain Traceability
- E-Learning and Knowledge Management
Universidad de Los Andes
2019-2025
University of Cundinamarca
2023-2025
The global commitment to ending hunger by 2030 has driven Colombia align its Sustainable Development Goals (SDGs) toward reducing food waste and ensuring access safe, nutritious food. A critical need is monitoring cumulative temperatures across supply networks, prioritizing products over transport or storage infrastructure. This study introduces a Functional Time-Temperature Indicator (TTI) using nanodispersions of silver (Ag) gold (Au) nanoparticles housed in 3D-printed plant-based resin...
Gold nanoparticles (AuNPs) are extensively employed in colorimetric sensing, taking advantage of their optical properties to detect variables via observable color changes. These primarily driven by localized surface plasmon resonance (LSPR), particularly pronounced AuNPs within the visible spectrum. In this study, were synthesized pulsed laser ablation liquids (PLAL) with a pulse energy (Ep) ranging from 25 mJ 75 mJ. Size distributions, hydrodynamic diameters, polydispersity indices (PDI),...
Gold nanoparticles (AuNPs) are commonly synthesized using the citrate reduction method, reducing Au3+ into Au1+ ions and facilitating disproportionation of aurous species to Au atoms (Au0). This method results on citrate-capped AuNPs with valence single states Au0. Here, we report a methodology that allows obtaining by dewetting process three different (Au3+, Au1+, Au0), which can be fine-tuned ion bombardment. The chemical surface changes binding state NPs were investigated core-level X-ray...
Abstract This work presents the results of production and characterization silver nanoparticles (AgNPs) to applications in Time Temperature Indicators (TTIs). AgNPs were synthetized by chemical processes. The suspensions (AgNPs water) characterized for different temperatures (4°C 22°C) time (0 5h). energy dispersive X-ray spectrometry (EDS), UV–vis spectrophotometry dynamic light scattering (DLS). with diameters between 40 160nm produced. UV-Vis spectra reveal a characteristic absorption...
El avance tecnológico ha generado la necesidad de reinventar educación universitaria, especialmente en el campo ingeniería. Se busca formar a los estudiantes con habilidades digitales y adaptarse desafíos laborales actuales. Según ABET, ingenieros requieren competencias comunicación, trabajo equipo, liderazgo, inteligencia emocional creatividad. Para abordar estos cambios, Facultad Ingeniería Universidad Cundinamarca implementado estrategias formación activa autónoma, enfocadas desarrollo...