A5005772272- Biodiesel Production and Applications
- Nanoparticles: synthesis and applications
- Enzyme Catalysis and Immobilization
- Algal biology and biofuel production
- Genetics, Aging, and Longevity in Model Organisms
- Environmental Toxicology and Ecotoxicology
- Educational Research and Science Teaching
- Dye analysis and toxicity
- Adsorption and biosorption for pollutant removal
- Heavy metals in environment
- Effects and risks of endocrine disrupting chemicals
- Microbial Metabolic Engineering and Bioproduction
- Constructed Wetlands for Wastewater Treatment
- Business, Innovation, and Economy
- Heavy Metal Exposure and Toxicity
- SARS-CoV-2 and COVID-19 Research
- Water Resource Management and Quality
- Mercury impact and mitigation studies
- Public Health and Environmental Issues
- Chromium effects and bioremediation
- Occupational Health and Safety in Workplaces
- Healthcare and Environmental Waste Management
- E-Learning and Knowledge Management
- Science, Technology, and Education in Latin America
- Psychology Research and Bibliometrics
University of Cartagena
2015-2024
ORCID
2014
Air pollution by particulate matter (PM) is one of the main threats to human health, particularly in large cities where levels are continually exceeded. According their source emission, geography, and local meteorology, pollutant particles vary size composition. These conditioned aerodynamic diameter thus classified as coarse (2.5–10 μm), fine (0.1–2.5 ultrafine (<0.1 degree toxicity becomes greater for smaller particles. can get into lungs translocate vital organs due size, causing...
Bisphenol A (BPA) is a ubiquitous plasticizer which absorbed by ingestion and dermal contact; propyl paraben (PPB) inhibits the microbiome extends shelf life of many personal care products, whereas triclosan (TCS) commonly found in antiseptics, disinfectants, or additives. In this work, Caenorhabditis elegans was used as biological model to assess toxic effects BPA, PPB, TCS. The wild type strain, Bristol N2, bioassays with endpoints lethality, growth, reproduction; green fluorescent protein...
Nickel (Ni) is one of the most toxic metals in human health. Its bioaccumulation gluten-free crops limits progressing demand safe foods for allergic people to gluten. Nanoparticles have shown promising results enhancing crop yield and reducing risk heavy metal uptake. However, their nanotoxicity has been raised environmental concerns. This study investigated behavior Ni (II) with co-presence Zinc Oxide (ZnO-NPs) sorghum bicolor. The plants were exposed different treatments Ni, ZnO-NPs, or...
<p>El uso creciente del biodiésel ha impulsado la búsqueda de nuevas materias primas, dentro las que se destacan microalgas. En esta investigación estudió el cultivo microalgas Chlorella sp. y Dunaliella salina bajo diferentes condiciones pH concentración nitrógeno (mgL-1), caracterización los aceites obtenidos, con fin evaluar su potencial como materia prima en producción biodiésel. La D. alcanzó una máxima celular 1.15x106 células mL-1 6 días unas 8.5 0.1 mg L-1 nitrógeno, mientras...
In an era where environmental sustainability has become paramount, the scientific community is continually pushing boundaries of innovation to address pressing challenges posed by pollution and degradation [...]
Introduccion. El cromo se encuentra en efluentes industriales principalmente como Cr (III) y (VI); este ultimo es altamente toxico para todas las formas de vida, ademas mutagenico carcinogenico el hombre. Los metodos convencionales tratamiento con metales pesados, tales la reduccion, oxidacion, intercambio ionico, filtracion, tecnologias membrana resultan ser costosos e ineficientes a bajas concentraciones metal. empleo biomasa elimina problema toxicidad, permite recuperar los pesados...
The effect of changes to activated charcoal and chitosan coating lignocellulosic biomass obtained from banana orange peels for the absorption Cr (VI) was studied. Characterization functional groups in suitable adsorption monitored by elemental analysis (CHON) infrared spectroscopy (IR), while carbon surface area determined BET analysis. content solution measured UV-vis spectrophotometer, using diphenylcarbazide method. results showed a removal ions 66.6 93 ppm respectively; carbons removed...
Biodiesel is a biofuel produced from fats and oils because of the disadvantages fossil use, its production consumption has increased in recent years. In this work esterification waste oil by acid catalysis alkaline transesterification to obtain biodiesel was studied. The oil-methanol (6:1 5:1) ratio conditions catalyst concentration were varied select most favorable for process. used collected restaurants city Cartagena. It found that variable greater effect on reaction yield ratio, favoring...
El objetivo del presente estudio fue obtener ácido láctico (AL) a partir almidón de ñame espino post-cosecha (Dioscorea rotundata) mediante fermentación usando Lactobacillus delbrueckii ssp. bulgaricus y Streptococcus thermophilus 37 ºC. Se lavaron 5 Kg tubérculos frescos, descortezaron, redujo tamaño, licuó filtró; el filtrado se decantó lavándose sedimento con agua destilada, filtrados al vacío secados 60 ºC por 12 h, seguido molienda para su posterior empaque. caracterizó determinando...
Los problemas de la corrosión son frecuentes en industria química, petrolífera, naval, construcción civil, los medios transporte, sistemas comunicación, entre otros. inhibidores ampliamente utilizados el control y prevención este fenómeno, mayoría compuestos usados para fin resultan demasiado tóxicos, costosos dañinos medio ambiente ser humano. Esta situación ha creado necesidad encontrar que sean ambientalmente amigables bajo costo. extractos plantas biodegradables representan una fuente...
The study of mercury content in marine sediments is presented nine sampling stations Estero Huaylá Puerto Bolívar (Ecuador), by means spectrophotometry atomic absorption with flame nebulization and the generation hydrides atomization a quartz cell. ecological risk assessment was determined calculating pollution factor (fi) potential index (IREP) at each point. result obtained, for metal, compared values existing sediment quality guide: CEL (Concentration limit effect) CEP probable effect)....
Las bolsas plásticas son de uso desechable y se liberan al medio ambiente en cantidades crecientes. Por esta razón muchos fabricantes las están produciendo a base materiales poliméricos degradables, como por ejemplo, los polihidroxialcanoatos polilactatos. En este trabajo evaluó la degradabilidad exposición declaradas degradables sus fabricantes, compararon con convencionales. Se estudiaron tres parámetros pérdida masa, absorción agua resistencia mecánica. Los resultados mostraron que...