ETEB Technology, one of the leading manufacturers and suppliers in China, now brings you quality and reliable size-controlled synthesis 4nm gold(au) nanoparticle unique optoelectronic properties, applied in organic photovoltaics, sensory probes, therapeutic agents, drug delivery in biological and medical applications, electronic conductors and catalysis. Welcome to buy the quality bulk products with us and customized orders are also welcome.
Particle size ：4nm
Colloidal gold is a sol or colloidal suspension of nanoparticles of gold in a fluid, usually water. The liquid is usually either an intense red colour (for particles less than 100 nm) or blue/purple (for larger particles).
Due to the unique optical, electronic, and molecular-recognition properties of gold nanoparticles, they are the subject of substantial research, with applications in a wide variety of areas, including electron microscopy, electronics, nanotechnology, and materials science.
The properties of colloidal gold nanoparticles, and thus their applications, depend strongly upon their size and shape. For example, rodlike particles have both transverse and longitudinal absorption peak, and anisotropy of the shape affects their self-assembly.
Detection of toxic gas
Gold nanoparticle based biosensor