❮ Plasmonic

NanoXact Gold Nanoshells – PEG

Gold nanoshells consist of a silica core surrounded by a gold shell. By changing the ratio of the size of the core to the thickness of the shell, the plasmon resonance can be tuned across the visible and infrared. Learn more ❯

Polyethylene glycol (PEG) is a 5 kDa ligand that is covalently bound to the particle’s surface. The PEG surface provides the highest stability in aqueous buffers and protic solvents. Learn more ❯

NanoXact materials are high quality, unagglomerated and monodisperse nanoparticles. Learn more ❯

Provided at 0.05 mg/mL or 1 mg/mL in water.

Peak Wavelength (> 90% peak absorbance)	Silica Core Diameter	Gold Shell Thickness
660 nm	83 nm ± 5 nm	30 nm ± 7 nm
800 nm	120 nm ± 4 nm	20 nm ± 7 nm
980 nm	200 nm ± 10 nm	20 nm ± 7 nm

Peak Wavelength (> 90% peak absorbance)	Optical Density	Example Certificate of Analysis
660 nm	0.05 mg/mL	Download Example CoA
660 nm	1 mg/mL	Download Example CoA
800 nm	0.05 mg/mL	Download Example CoA
800 nm	1 mg/mL	Download Example CoA
980 nm	0.05 mg/mL	Download Example CoA
980 nm	1 mg/mL	Download Example CoA