Publications by authors named "Maximiliano Mendez-Lopez"
Design and Optimization of PEDOT/Graphene Oxide and PEDOT/Reduced Graphene Oxide Electrodes to Improve the Performance of Microbial Fuel Cells, Accompanied by Comprehensive Electrochemical Analysis.
Polymers (Basel)
November 2024
A comprehensive investigation into the design and electrochemical optimization of composite electrodes consisting of poly(3,4-ethylenedioxythiophene) (PEDOT)/graphene oxide (GO)/ and reduced graphene oxide (rGO)/ hybrids, anchored onto stainless-steel (SS) substrates, has been conducted. The GO and rGO materials were synthesized using a modified Hummer method. The resulting SS/PEDOT/GO and SS/PEDOT/rGO composite electrodes were subjected to systematic electrochemical characterization, focusing on the PEDOT p-type and n-type doping/undoping processes within diverse solvent environments (CHCN and HO) and electrolyte compositions (LiClO and KCl).
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- The study investigates using density functional theory (DFT) to design biodegradable hydrogels for capturing carbon dioxide (CO) to reduce greenhouse gas emissions.
- The research identifies four hydrogel models—polyethylene glycol, polyvinylpyrrolidone, chitosan, and poly-2-hydroxymethacrylate—that show strong binding affinities to CO, with binding energies indicating physisorption.
- Findings suggest that these materials are stable at high temperatures and highlight the potential for developing new CO capture technologies, although further optimization and environmental performance assessments are needed.
Article Synopsis
- Three unsymmetrical 7-(diethylamino)quinolone chalcones were created through a Claisen-Schmidt reaction, utilizing 7-(diethylamino)quinolone and vanillin as electron donors linked by an α,β-unsaturated carbonyl as the electron acceptor.
- The photophysical analysis showed significant Stokes shifts and solvatofluorochromism due to intramolecular charge transfer (ICT) and twisted intramolecular charge transfer (TICT), with density functional theory (DFT) calculations supporting these findings.
- Cytotoxic tests on various cancer cell lines showed moderate activity, particularly against LNCaP cells, and the compounds demonstrated potential as imaging agents with strong emission and good cell permeability,
Arterial hypertension (AH) is a multifactorial and asymptomatic disease that affects vital organs such as the kidneys and heart. Considering its prevalence and the associated severe health repercussions, hypertension has become a disease of great relevance for public health across the globe. Conventionally, the classification of an individual as hypertensive or non-hypertensive is conducted through ambulatory blood pressure monitoring over a 24-h period.
View Article and Find Full Text PDFThe occurrence, persistence, and accumulation of antibiotics and non-steroidal anti-inflammatory drugs (NSAIDs) represent a new environmental problem due to their harmful effects on human and aquatic life. A suitable absorbent for a particular type of pollutant does not necessarily absorb other types of compounds, so knowing the compatibility between a particular pollutant and a potential absorbent before experimentation seems to be fundamental. In this work, the molecular interactions between some pharmaceuticals (amoxicillin, ibuprofen, and tetracycline derivatives) with two potential absorbers, chitosan and graphene oxide models (pyrene, GO-1, and coronene, GO-2), were studied using the ωB97X-D/6-311G(2d,p) level of theory.
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