Gold nanoparticles functionalized with methyl-terminated polyethylene glycol (PEG).
 
	
Biologically inert surface chemistry
	
Highly resistant to non-specific serum protein adsorption and cell binding
	
Core diameter: 4 nm – 200 nm
	
Absorbance peak: 520 – 850 nm
	
Shelf life: > 1 year (4°C storage)
	
Supplied as liquid suspension in PBS or in water with 0.01% (w/v) Tween-20