Gold NanoUrchins Provided by Merck

Gold NanoUrchins exhibit distinctive optical properties compared to spherical gold nanoparticles of equivalent core diameter. The spiky and uneven surface induces a red shift in the surface plasmon peak, and there is a greater enhancement of the electromagnetic field at the tips of the Gold NanoUrchin spikes when compared to spherical particles.

For instance, 100 nm spherical gold nanoparticles have a surface plasmon resonance (SPR) peak at 570 nm, while 100 nm Gold NanoUrchins display an SPR peak around 680 nm.

TEM of 100 nm Gold NanoUrchins. Image Credit: Merck

Left - UV-VIS spectra of 100 nm Gold NanoUrchins (blue) and 100 nm standard gold nanoparticles (green). Note the red-shift in the SPR-peak. Right - UV-VIS spectra of Gold NanoUrchins ranging in size from 50 nm to 100 nm in diameter. Image Credit: Merck

Materials

Source: Merck

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	Gold nano-urchins 70 nm, maleimide functionalized, conjugation kit
	Gold nano-urchins 100 nm, NHS ester functionalized, conjugation kit
	Gold nano-urchins 50 nm avg. part. size, in 0.1 mM PBS
	Gold nano-urchins 90 nm avg. part. size, in 0.1 mM PBS
	Gold nano-urchins 80 nm avg. part. size, in 0.1 mM PBS
	Gold nano-urchins 100 nm avg. part. size, in 0.1 mM PBS