A5036881415- Dye analysis and toxicity
- Advanced Drug Delivery Systems
- Nanoparticles: synthesis and applications
- biodegradable polymer synthesis and properties
- Essential Oils and Antimicrobial Activity
- Hydrogels: synthesis, properties, applications
- Copper-based nanomaterials and applications
- Polymer Synthesis and Characterization
- Advanced Combustion Engine Technologies
- SARS-CoV-2 and COVID-19 Research
- Polysaccharides Composition and Applications
- Biodiesel Production and Applications
- Cell Image Analysis Techniques
- Gas Sensing Nanomaterials and Sensors
- Drug Solubulity and Delivery Systems
- Natural Antidiabetic Agents Studies
- Advanced Photocatalysis Techniques
- Energy, Environment, and Transportation Policies
National Polytechnic School
2024
Escuela Politécnica del Ejército
2020-2023
Pontificia Universidad Católica del Ecuador
2019
Poly(lactic-co-glycolic acid) is one of the most used polymers for drug delivery systems (DDSs). It shows excellent biocompatibility, biodegradability, and allows spatio-temporal control release a by altering its chemistry. In spite this, few formulations have reached market. To characterize optimize process, mathematical models offer good alternative as they allow interpreting predicting experimental findings, saving time money. However, there no general model that describes all types...
The search for new strategies to curb the spread of SARS-CoV-2 coronavirus, which causes COVID-19, has become a global priority. Various nanomaterials have been proposed as ideal candidates inactivate virus; however, because high level biosecurity required their use, alternative models should be determined. This study aimed compare effects two types gold (AuNPs) and silver nanoparticles (AgNPs), recognized antiviral activity affinity with coronavirus spike protein using PhiX174 enveloped...
The quality of fuel depends on its chemical composition, which influences engine performance. Gas chromatography, a cornerstone global oil and R&D, remains crucial for ensuring the petroleum products regulatory compliance. Scientists use most accurate analysis (PIONA) as tool derived from gas chromatography coupled with mass spectrometry to identify quantify hydrocarbons that influence resistance detonation, is determined by research octane number (RON). This study introduces “average...
Debido a la importancia de una alternativa en decoloración aguas residuales provenientes industria alimentos, se reporta remoción del colorante tartrazina, utilizando nanopartículas hierro cerovalentes. Las prepararon por reducción química cloruro férrico con borohidruro sodio medio inerte. Para evaluar remoción, emplearon concentraciones 25, 50 100, 150 y 200 mg/L nanopartículas, tiempos contacto agua 10, 20 30 minutos pH 3, 5, 7, 9 11. obtenidas caracterizaron Microscopía Electrónica...
Se han descrito muchos estudios de biosíntesis nanopartículas plata usando el extracto del bulbo ajo (Allium sativum) como agente reductor. Sin embargo, uso sus hojas es poco conocido, por considerarse un producto desecho. En este estudio, se comparó tamaño obtenidas con acuoso las dos técnicas diferentes calentamiento: placa y microondas. Las caracterizaron espectrofotometría UV-Visible, microscopía transmisión electrónica (TEM, siglas en inglés), dispersión dinámica luz (DLS, inglés)...
Background: Nanoparticles are structures up to 100 nm in size. Estimation of their size is usually determined by assessing images obtained from scanning electron microscopy (SEM) and/or transmission (TEM) techniques. Studies on the effect visual cognition analysis these types limited. Objective: The aim research was determine whether students’ influences identification, analysis, and measurement nanoparticle through SEM TEM imaging using ImageJ software. Methods: each participant evaluated...
Background: Natural and synthetic polymeric materials can be used in the fields of biomedicine pharmaceuticals as a material for controlled drug delivery. Among polymers, polyesters are synthesized from two natural monomers: lactic glycolic acid, which biocompatible biodegradable. Objective: Here we review broad aspects including its properties, synthesis, characterization, particle delivery applications. Conclusion: Finally, have concluded that certainly very versatile is continuously...
El uso de colorantes azoicos puede causar un sin número enfermedades alérgicas e incluso incluirse como sustancias cancerígenas. En este estudio se analizó el nanopartículas Cero Valentes hierro recubiertas con extracto acuoso vegetal Solanum mammosum L. (8,9±2,8 nm) sobre los rojo Congo y violeta metilo en agua. La metodología constó del acondicionamiento proceso remociónusando blanco recubrimiento usadas (24,8±6,1 nm). Se obtuvieron espectros absorción UV-Vis determinó las condiciones...