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handle: 10261/28501
[ES] La presente invención describe la preparación de las superficies del poliestireno químicamente modificadas con una amplia variedad de grupos funcionales. Esto implica una modificación húmeda realizada en dos etapas. La primera etapa es la activación de la superficie en crear a grupos del chlorosulphonyl sumergiendo los sustratos del poliestireno en una solución de ácido chlorosulphonic en las temperaturas bajas. Después de lavarse, el sustrato modificado se sumerge en una solución acuosa que contenga un compuesto bifuncional, uno del ser de los grupos funcionales una amina alifática primaria que sirva como anclaje a la superficie por medio de un enlace covalente de la sulfamida. El segundo grupo funcional está disponible en la superficie modificada y el bote sea utilizado inmovilizar biomoléculas cuando se crea una conexión covalente o ajustar parámetros de la superficie tales como humectabilidad o adhesión. La calidad óptica de las muestras es inalterada mantenido durante la modificación, que permite el uso de las superficies modificadas como herramienta ideal para los ensayos de diagnóstico del ELISA o de la DNA parecida a las patatas fritas.
[EN] The present invention describes the preparation of polystyrene surfaces chemically modified with a wide variety of functional groups. This involves a wet modification performed in two steps. The first step is the activation of the surface on creating chlorosulphonyl groups by immersing the polystyrene substrates in a chlorosulphonic acid solution at low temperatures. After washing, the modified substrate is immersed in an aqueous solution that contains a bifunctional compound, one of the functional groups being a primary aliphatic amine that serves as anchorage to the surface by means of a sulphonamide covalent bond. The second functional group is available on the modified surface and can be used to immobilize biomolecules when a covalent connection is created or to adjust surface parameters such as wettability or adhesion. The optical quality of the samples is maintained unaltered during the modification, which allows the use of the modified surfaces as an ideal tool for diagnostic assays of the ELISA or DNA chip type.
Consejo Superior de Investigaciones Científicas (España),Fundación Inasmet
A1 Solicitud de patente con informe sobre el estado de la técnica
Peer reviewed
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