mPEG-Biotin

Methoxy-poly(ethylene glycol)-biotin (mPEG-Biotin) is a monofunctional precision PEG derivative with a defined chain length. One end bears a methoxy group. The other end bears a biotin group. Discrete chain lengths with different degrees of polymerization are available. Biotin can bind avidin or streptavidin. The PEG spacer separates the recognition unit from the immobilization surface. Capping one end defines the direction of derivatization, enabling the hydrophilic PEG segment to be attached to a target molecule and functional linkers of the required length to be constructed.

Customization available.