Posted in | Nanomaterials

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.

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.

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

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