NHS Activated Gold NanoUrchins (GUN10K)

NHS-activated Gold NanoUrchin Conjugation Kits optimized for high efficiency one-step conjugations of proteins and other primary amine-containing ligands to gold nanoparticles with diameters in the size range of 5nm-100nm. Non-functionalized Gold NanoUrchins have unique optical properties compared to spherical gold nanoparticles of the same core diameter. The spiky uneven surface causes a red shift in the surface plasmon peak and a larger enhancement of electromagnetic fields at the tips of the Gold NanoUrchin spikes compared to that of a spherical particle. As an example, 100nm spherical gold nanoparticles have an SPR peak at 570nm while 100nm Gold NanoUrchins have a SPR peak at around 680nm. In addition, binding of ligands such as proteins to the Gold NanoUrchin surface causes a larger shift in the surface plasmon peak compared to standard spherical gold nanoparticles. The kit contains ready-to-use pre-made mixtures. No activation or manipulation of the gold nanourchins is required p