Gold Nanoparticle Properties: PEG Length vs. Molecular Weight

Important reference for determining the diameter increase of gold nanoparticles

The following .exe calculates the PEG length and overall gold nanoparticle + PEG diameter given a PEG Molecular Weight and gold nanoparticle diameter. The PEG length is calculated based on the PEO unit length of 0.28 nm in water [Oesterhelt F, Rief M, Gaub HE (1999) Single molecule force spectroscopy by AFM indicates helical structure of poly(ethylene-glycol) in water. New J Phys 1: 6.1–6.11].

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