Antigen-antibody reaction studied by laser light scattering

Static light scattering (SLS) has been used to study the antigen-antibody reaction in buffer medium. B-group blood was mixed with its antibody and the clustering studied using static laser light scattering technique. A home made scattering set up has been used and the clusters formed were modeled as dasiafractalspsila with fractal dimension D_f. The static Structure factor, Correlation length (xi) and the radius of gyration R_e have been determined assuming a Gaussian distribution for cluster size and a Gaussian cut off function for the cluster boundaries..