Used in biomedical research to quantify levels of complement 3 (C3) associated with human platelets, this ELISA kit helps investigate the role of the complement system in platelet activation and thromboinflammatory conditions. It is applied in studies related to autoimmune diseases, sepsis, and cardiovascular disorders where platelet-complement interactions contribute to disease progression. Researchers use it to assess C3 deposition on platelets, evaluate the effects of therapeutic agents on complement activation, and explore mechanisms in conditions like antiphospholipid syndrome or heparin-induced thrombocytopenia.