The test technology is based on an extremely high total binding capacity, achieved through a high binding capacity per mg cellulose in combination with an optimal amount of cellulose in each solid phase. This ensures binding of all relevant antibodies, regardless of antibody affinity still giving low non-specific binding.
The ImmunoCAP solid phase consists of a cellulose derivative enclosed in a capsules. The hydrophilic, highly branched polymer provides an ideal microenvironment for rallergens, binding them irreversibly while mainitaining their native structure.
The test is designed as a sandwich immunoassay.