Figure 3: Quanta BioDesign’s NHS-dPEG®n-Biotin line of biotinylation products. The products are functionalized with biotin through an amide bond on one end of a discrete PEG (dPEG®) spacer consisting of 4, 12, or 24 ethylene oxide units, and with N-hydroxysuccinimide (NHS) on the opposite end. The NHS is joined as an ester to a propanoic acid group.
