The other GlycoBAR flagship product is the BAR molecule (BAR stands for Blood-group Antibody Remover). This is tetraose blood group antigen sugars immobilized on a cellulosic support. It exists under two versions: BAR-A and BAR-B; the BAR molecule is represented here below in it’s A version:
This product has been designed to be disposable (once the blood group antibodies are captured and fixed on the BAR molecule, the product of interest is filtered and the used BAR product is thrown away. This approach is made possible by the low cost approaches that have been chosen in the product design and the high scale production of the sugars themselves. Note however that BAR can be recycled thanks to 1M NaOH washing solution.