Fundamentos del nano secado por aspersión y su aplicación como etapa de purificación de nanofármacos.

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Bibliographic Details
Title: Fundamentos del nano secado por aspersión y su aplicación como etapa de purificación de nanofármacos.
Authors: Ramirez-Guerrero, N.1, Gonzalez-Rodriguez, O.1, Casañas-Pimentel, R.1 rcasanas@ipn.mx
Source: Latin-American Journal of Physics Education. Jun2025, Vol. 19 Issue 2, p1-8. 8p.
Subject Terms: Spray drying, Nanoparticles manufacturing, Pharmaceutical industry, Drying apparatus, Size reduction of materials, Nanomedicine
Abstract (English): Spray drying is a technique that has long been used in diverse industries, including pharmaceutical, to convert liquids into solids and form products with a uniform appearance. The construction of the spray dryer is designed to atomize the liquid into small droplets, ensuring a large surface area for heat and mass transfer and significantly shortening processing times, protecting chemical substances from thermal degradation. Each droplet dries to form an individual solid particle with characteristics that can be customized by optimizing formulation variables and critical process parameters. In recent years, the use of nano spray drying technology has gained momentum as a method for manufacturing nanoparticles at the laboratory scale. This approach is of particular interest when seeking to improve the properties or effect of a drug by reducing the size of the obtained particles. Therefore, the nebulization technique is used to atomize the feed fluid, while the laminar flow of gas in the drying chamber ensures gentle drying conditions. Furthermore, electrostatic collectors, unlike cyclone separators, guarantee high efficiency in the production of solid nanoparticles, even when processing a small sample volume. [ABSTRACT FROM AUTHOR]
Abstract (Portuguese): El secado por aspersión es una técnica que se ha empleado durante mucho tiempo en diversas industrias, incluyendo la farmacéutica, para convertir líquidos en sólidos y formar productos de apariencia uniforme. La construcción del secador por aspersión está diseñada de tal manera que permite atomizar el líquido en pequeñas gotas, lo que garantiza una gran área de superficie para la transferencia de calor y de masa, y acorta significativamente el procesamiento, protegiendo a las sustancias químicas de su degradación térmica. Cada gota se seca formando una partícula sólida individual con características que pueden personalizarse optimizando las variables de formulación y los parámetros críticos del proceso. En los últimos años, ha tomado fuerza el uso de la tecnología de nanosecado por aspersión como método para la fabricación de nanopartículas a escala de laboratorio, así como para su purificación. Este enfoque es de especial interés cuando se busca mejorar las propiedades o el efecto de un fármaco al reducir el tamaño de las partículas obtenidas o mejorar su estabilidad. Es por eso que se utiliza la técnica de nebulización para la atomización del fluido de alimentación, mientras que el flujo laminar de gas en la cámara de secado garantiza condiciones de secado suaves. Además, los colectores electrostáticos, a diferencia de los separadores ciclónicos, garantizan una alta eficacia en la producción de nanopartículas sólidas, incluso si se procesa un pequeño volumen de muestra. [ABSTRACT FROM AUTHOR]
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Database: Education Research Complete
Description
Abstract:Spray drying is a technique that has long been used in diverse industries, including pharmaceutical, to convert liquids into solids and form products with a uniform appearance. The construction of the spray dryer is designed to atomize the liquid into small droplets, ensuring a large surface area for heat and mass transfer and significantly shortening processing times, protecting chemical substances from thermal degradation. Each droplet dries to form an individual solid particle with characteristics that can be customized by optimizing formulation variables and critical process parameters. In recent years, the use of nano spray drying technology has gained momentum as a method for manufacturing nanoparticles at the laboratory scale. This approach is of particular interest when seeking to improve the properties or effect of a drug by reducing the size of the obtained particles. Therefore, the nebulization technique is used to atomize the feed fluid, while the laminar flow of gas in the drying chamber ensures gentle drying conditions. Furthermore, electrostatic collectors, unlike cyclone separators, guarantee high efficiency in the production of solid nanoparticles, even when processing a small sample volume. [ABSTRACT FROM AUTHOR]
ISSN:18709095