the technique used for the physical or chemical fixation of cells, organelles, enzymes, or other proteins (e.g monoclonal antibodies) onto a solid support, into a solid matrix or retained by a membrane , in order to increase their stability and make possible their repeated or continued use, tehnika rakkude, organellide, valkude jm sidumiseks tahkele maatriksile või tõkestamiseks membraani abil