本文第一部分中叙述的各种人工合成微球,如通过物理吸附或化学交联,使抗原或抗体包被其上,即成为免疫微球。这种免疫微球在参与免疫反应中具有以下特点:(1)如与相应的抗体或可溶性抗原起反应,可发生微球的凝集;(2)如与细胞表面的抗原或抗体起 The various synthetic microspheres described in the first part of this article, such as by physical adsorption or chemical crosslinking, so that the antigen or antibody coated thereon, that become immune microspheres. Such immune microspheres have the following characteristics in participating in the immune response: (1) agglutination of the microspheres may occur if they react with the corresponding antibodies or soluble antigens; (2) if agglutination with the antigens or antibodies on the cell surface