Video Experimental Relacionado

Updated: Aug 4, 2026

Using Polystyrene-block-poly(acrylic acid)-coated Metal Nanoparticles as Monomers for Their Homo- and Co-polymerization

Using Polystyrene-block-poly(acrylic acid)-coated Metal Nanoparticles as Monomers for Their Homo- and Co-polymerization

Published on: July 9, 2015

Las nanopartículas cúbicas bicontinuas polimerizadas (cubosomas) de un monoacilglicerol reactivo

Da Yang¹, David F O'Brien, Seth R Marder

¹C. S. Marvel Laboratories, Department of Chemistry, University of Arizona, Tucson 85721, USA.

Journal of the American Chemical Society

|November 7, 2002

Resumen

Los investigadores desarrollaron cubosomas polimerizables a partir de monoacilgliceroles y Poloxamer 407. Estas nuevas nanopartículas ofrecen una mayor estabilidad a través de enlaces cruzados, allanando el camino para aplicaciones tecnológicas avanzadas.

Área de la Ciencia:

Ciencia de los materiales Ciencia de los materiales.
Nanotecnología La nanotecnología es la nanotecnología.
Química de Polímeros La Química de Polímeros es la química de los polímeros.

Sus antecedentes:

Las fases cúbicas bicontinuas formadas por monoacilgliceroles y Poloxamer 407 pueden formar partículas submicrónicas llamadas cubosomas.
Mejorar la robustez de la arquitectura no lamelar cubosómica es crucial para las aplicaciones tecnológicas.

Objetivo del estudio:

Para sintetizar un monoacilglicerol polimerizable para crear cubosomas más robustos.
Para investigar la polimerización y la estabilidad de estos nuevos cubosomas.

Principales métodos:

Síntesis de un monoacilglicerol heterobifuncional polimerizable: 3-(2,4,13-(E,E) -tetradecatrienoil) -sn-glicerol. también conocido como monoglicerol.
Formación de gel de fase cúbica y dispersión en nanopartículas mediante ultrasonidos en presencia de Poloxamer 407.
Iniciación de la polimerización de los cubosomas utilizando el fotoiniciador o la química redox.

Principales resultados:

Se formaron con éxito geles ópticamente transparentes y nanopartículas de 300 nm de diámetro.
La polimerización de los cubosomas se logró a través de la fotoiniciación o la química redox.
Los cubosomas polimerizados demostraron una mayor estabilidad, resistiendo la interrupción por Tritón X-100, lo que indica un enlace cruzado exitoso.

Conclusiones:

Un nuevo monoacilglicerol polimerizable permite la creación de cubosomas reactivos.
El enlace cruzado mejora significativamente la integridad estructural y la estabilidad de los cubosomas.
Estos hallazgos apoyan el potencial de aplicaciones tecnológicas avanzadas de cubosomas robustos.

Más Videos Relacionados

Facile Synthesis of Worm-like Micelles by Visible Light Mediated Dispersion Polymerization Using Photoredox Catalyst

Facile Synthesis of Worm-like Micelles by Visible Light Mediated Dispersion Polymerization Using Photoredox Catalyst

Published on: June 8, 2016

Synthesis of Monodisperse Cylindrical Nanoparticles via Crystallization-driven Self-assembly of Biodegradable Block Copolymers

Synthesis of Monodisperse Cylindrical Nanoparticles via Crystallization-driven Self-assembly of Biodegradable Block Copolymers

Published on: June 20, 2019

Videos de Conceptos Relacionados

Colloids

Colloids

Children at play often make suspensions such as mixtures of mud and water, flour and water, or a suspension of solid pigments in water known as tempera paint. These suspensions are heterogeneous mixtures composed of relatively large particles that are visible to the naked eye or can be seen with a magnifying glass. They are cloudy, and the suspended particles settle out after mixing. On the other hand, a solution is a homogeneous mixture in which no settling occurs and in which the dissolved...

Characteristics and Nomenclature of Copolymers

Characteristics and Nomenclature of Copolymers

Copolymers are the products obtained from the polymerization of multiple monomer species. So, in a polymer chain itself, there can be multiple repeating units that come from different monomers. The process of synthesizing a polymer from different monomer species is called copolymerization. When two monomers are involved, the polymer is known as a bipolymer. Polymers with three and four monomers are termed terpolymers and quaterpolymers, respectively. Figure 1 depicts the copolymerization of...

Step-Growth Polymerization: Overview

Step-Growth Polymerization: Overview

Step-growth or condensation polymerization is a stepwise reaction of bi or multifunctional monomers to form long-chain polymers. As all the monomers are reactive, most of the monomers are consumed at the early stages of the reaction to form small chains of reactive oligomers, which then combine to form long polymer chains in the late stages. Hence, the reaction has to proceed for a long time to achieve high molecular weight polymers.
Many natural and synthetic polymers are produced by...

Micelles

Micelles

Micelle formation is an intricate process that hinges on the properties of amphiphilic or amphipathic molecules and the conditions of the system in which they are found. Amphiphilic molecules, which have both hydrophilic (water-attracting) and hydrophobic (water-repelling) parts, play a critical role in this process.In aqueous environments, these molecules arrange themselves such that their hydrophilic heads are turned towards the water phase, while their hydrophobic tails are oriented away...