What Is Biotinylated Polyethylene Glycol?

What Is Biotinylated Polyethylene Glycol? ?

Mindy Hausler , 28 Aug 2026

1 Answers

Biotinylated polyethylene glycol (Biotin-PEG) is a versatile bifunctional compound that combines the high-affinity binding capability of biotin with the solubility, flexibility, and biocompatibility of polyethylene glycol (PEG). This hybrid structure enables site-specific, stable conjugation to a wide range of biological molecules, making it an indispensable tool in drug delivery, molecular imaging, diagnostics, and nanotechnology.