English to Spanish Medical Medical: Instruments loosely and nonspecifically bound antibodies

Buenos días,

Espero que puedan ayudarme con una expresión al español: “loosely and nonspecifically bound antibodies”, relacionada con un tampón de lavado. Muchas gracias:

“Binding of an antibody to its epitopes involves electrostatic forces and hydrophobic forces. Certain antibodies have tendency to bind loosely and nonspecifically to unrelated epitopes, which create undesired background staining. To remove these loosely and nonspecifically bound antibodies, a thorough washing is required after each immunostaining step.”

GVL