El envejecimiento en las enfermedades neurológicas y psiquiátricas

MARISOL LOPEZ LOPEZ NANCY MONROY JARAMILLO ALBERTO ORTEGA VAZQUEZ ERNESTO SOTO REYES SOLIS (2023)

Es un placer presentar el libro "El envejecimiento en las enfermedades neurológicas y psiquiátricas" escrito por un grupo de autores destacados y expertos en diversas áreas del conocimiento. Cada capítulo ha sido cuidadosamente elaborado para ofrecer una visión actualizada y rigurosa de los temas abordados, en los cuales se ha integrado una amplia gama de enfoques interdisciplinarios y de técnicas de investigación. Este libro se enfoca en el tema del envejecimiento desde varios vértices relacionados con las enfermedades neurológicas y psiquiátricas. A través de sus trece capítulos, los autores discutes detalladamente la relación del envejecimiento con la enfermedad del Alzheimer, la enfermedad de Parkinson, la enfermedad de Huntington, la esquizofrenia, el trastorno bipolar, la epilepsia y otras enfermedades neurológicas que impactan en la salud

Libro

MEDICINA Y CIENCIAS DE LA SALUD Vejez y salud mental - México Envejecimiento - Aspectos sociales - México Enfermedades mentales - México Enfermedades de los ancianos -aspectos sociales - México

Synthesis of hollow carbon spheres by chemical activation of carbon nanoparticles for their use in electrochemical capacitor

Cesar Eduardo Sanchez Rodriguez EDUARDO TOVAR MARTINEZ MARISOL REYES REYES Luis Felipe Cházaro Ruiz ROMAN LOPEZ SANDOVAL (2022)

"Naphthalene combustion has been used to synthesize grams per hour of solid carbon spheres (CS). The carbon soot was activated by acid treatment consisting in a mixture of HNO3 and H2SO4 (1/3 v/v) to produce hollow carbon spheres (HCS). The effect of two concentrations of CSs (5 and 10 mg mL−1) in the acid mixture, on the physicochemical properties of the activated HCSs was studied. The HSCs were subjected to a thermal treatment to increase their graphitization to enhance their electrical conductivity. High-resolution transmission electron microscopy confirmed the formation of HCSs due to the acid treatment whereas FTIR spectra showed that the chemical activation produced functional groups on the carbon spheres surface and the heat treatment effect to remove some of them as well. A specific surface area of 300 m2 g−1 and a large density of micropores for the acid-treated CSs as well as the heat-treated CSs were estimated by analysis of N2 adsorption-desorption isotherms. A specific capacitance 70 F g−1 was calculated by cyclic voltammetry of the acid and thermally treated HCSs at 5 mV s−1, for both CS concentrations, indicating the possibility of synthesizing these HCSs using a simple method in large quantities for their use in electrochemical capacitors."

Artículo

Physicochemical properties Carbon nanoparticles Chemical activation Electrochemical capacitor BIOLOGÍA Y QUÍMICA QUÍMICA QUÍMICA