Microgold Products and Applications

Nanopartz™ Microgold nanoparticles are produced using exclusive techniques that ensure precise sizes, uniform shapes, extended shelf lives, and enhanced reactivity. These rod-shaped gold nanoparticles have diameters ranging from 75 to 100 nanometers and lengths of up to 1 micron. They are the largest nanoparticles available that can still be classified as such. Their longitudinal dimensions align with the wavelength of light, enabling easy detection under white light microscopy with basic equipment. In fact, they possess approximately 100 times the scattering cross section of a 100 nm spherical gold nanoparticle and 100,000 to 1,000,000 times the scattering of a 1.4 nm gold nanoparticle. Like all Nanopartz products, they exhibit high monodispersity and undergo thorough characterization, including size analysis, aggregation assessment, residual chemical evaluation, and concentration determination. Each order is accompanied by a Certificate of Analysis (COA) containing TEM and UV-VIS images and data, as well as DLS data. We maintain a 99% stock availability and provide same-day shipping. For more information, please select the page for the Microgold you are interested in below.

Nanopartz Microgold come in a wide variety of ligands and applications. These include adsorbed ligands such as citrate and PVP, covalent functionalizations with PEG and our own proprietary polymer in both in vitro and in vivo conditions, ligands for organic applications, and self-assembled monolayers. Applications include one step antibody functionalizations, oligo and DNA conjugations, click chemistry, lateral flow, and more.