Human quantitative Ig isotyping antibody arrays on glass slides are multiplex immunoassay platforms used to characterize immunoglobulin profiles in biological samples. Immunoglobulin classes and subclasses, including IgG subclasses, IgA, IgM and, depending on the assay, IgE and IgD, contribute to humoral immune responses. Their measurement supports research into antibody responses associated with infection, vaccination, autoimmunity and other immunological processes.

Key Features

• Multiplex immunoglobulin profiling: Parallel detection of selected human immunoglobulin classes or subclasses within a single assay.

• Glass-slide microarray format: Spatially arranged capture reagents enable multiplex detection, typically using fluorescence-based readout and a compatible laser scanner.

• Quantitative analysis: Calibrated standards can support concentration estimates for validated targets, whereas uncalibrated signals generally support relative or semi-quantitative comparisons.

• Sample-efficient analysis: Multiplexing can reduce the need for separate assays, depending on the number of targets and the assay design.

Usual Research Applications

Human Ig isotyping arrays can be used to compare immunoglobulin profiles in serum, plasma or other sample types validated for the selected platform. Applications include investigating vaccine-associated antibody responses, infection-related humoral immunity, autoimmune processes and differences in immunoglobulin profiles between experimental groups. Interpretation requires consideration of assay specificity, cross-reactivity, calibration, sensitivity and sample-matrix effects.