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Colorantes Nucleares

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Colorantes Nucleares

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La química de los colorantes

Created by

Yeimi
Yeimi
Spain

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Colorantes Nucleares
 

Colorantes NuclearesOnline version

La química de los colorantes

by Yeimi
1

Fórmula que utiliza yodato de sodio como oxidante, no contiene alcohol, ideal como contraste en inmunohistoquímica

2

Colorante básico que se une a estructuras ácidas, tiñe el núcleo de azul intenso o violeta, el mas usado en histología.

3

Tipo de tinción que consiste en teñir en exceso el tejido y luego 'eliminar el sobrante en una solución de alcohol-ácido hasta ver los detalles nucleares nítidos

4

Artefacto oscuro que aparece sobre el tejido, simulando estructuras que no existen. este aparece por almacenamiento prolongado o falta de agitación. ¿Cómo debemos prevenirlo ?

5

La Hematoxilina Férrica a diferencia de los lagos de aluminio que dan tonos azulados, esta es menos estable pero esencial para teñir fibras elásticas o colágeno. ¿Qué color proporciona a los núcleos?

6

Tinte natural que necesita un "mordiente metálico" para adherirse al ADN, y el resultado es un núcleo azul-violáceo o púrpura intenso

7

Catión metálico usual, cuya función es unirse a los grupos fenólicos de la hemateína para crear una carga positiva que atraiga al ADN.

8

Busca específicamente los grupos fosfato del DNA. ¿Por qué el 'lago' de hematoxilina prefiere el núcleo antes que las proteínas del citoplasma?"

9

Fenómeno que ocurre cuando la hemateína se combina con el mordiente metálico (aluminio) y se precipita fuera de la solución en lugar de unirse de forma ordenada al núcleo , se le conoce como?

 
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