Publications by authors named "B Arredondo-Tamayo"

Article Synopsis
  • Evaluating compostability is crucial for commercial bio-based cutlery and packaging to ensure they biodegrade quickly under controlled conditions, especially in Mexico where single-use materials are prevalent, but regulations are unclear.
  • The study analyzed three types of bio-based polymeric materials (bags, dishes, and forks) using various techniques over 90 days, revealing that bags had the highest decomposition rate (80%), while dishes and forks showed minimal changes in biodegradability.
  • Analytical techniques demonstrated that while bags and dishes exhibited surface degradation, forks remained stable, leading to the conclusion that only the bags truly meet compostability criteria, contradicting manufacturer claims.
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A hybrid ultra-light and porous cellulose aerogel was prepared by extracting cellulose fibers from white paper, alkali/urea as a crosslinker agent, and functionalized with CNTs and pure anatase TiO nanoparticles. Since CNTs work as mechanical reinforcement for aerogels, physical and mechanical properties were measured. Besides, since TiO acts as a photocatalyst for degrading dyes (rhodamine B and methylene blue), UV-Vis spectroscopy under UV light, visible light, and darkroom was used to evaluate the degradation process.

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The use of nanoparticles (NPs) in various industries has experienced significant growth due to the advantages they offer, so the increase in their use has generated the continuous discharge of these products in numerous water bodies, which can affect the organisms that inhabit them. Previous studies have shown that Al is capable of producing oxidative stress in aquatic organisms; however, so far the impact of AlNP on hydrobionts is limited. Therefore, the objective of this work was to determine the oxidative stress produced by AlNP in liver, gill and blood of Cyprinus carpio, as well as their bioconcentration factor (BCF) in various tissues.

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