Technical Articles

IgG is the most abundant and functionally core antibody molecule in human humoral immunity, featuring a Y-shaped tetrapeptide chain glycoprotein structure composed of two heavy chains and two light chains connected by disulfide bonds, with a molecular weight of approximately 150 kDa.

Antibody labeling technology is one of the core tools in immunological research and diagnostic reagent development. Traditional fluorescent dye-labeled antibodies often face limitations such as high background signals, poor photostability, and insufficient pH sensitivity in applications.