Gold Nanoparticles - Nanotechnology-enhanced, High-precision Optical And Electronic Properties, Versatile Applications In Diagnostics, Therapy, And Electronics

Gold Nanoparticles or Colloidal gold was being used in paintings by artists in ancient time due to the various colors produced by their interaction with visible light. But, now days this optoelectrical property is being used vastly such as conjugation of antibodies/antigen in biomedical field, electronic conductor, drug delivery etc. The color and electronic property of gold Nanoparticles are depends on its shape and size.

Applications
Gold Nanoparticles have so many applications in real world; some of major applications are as below:

1. Diagnostics : Gold Nanoparticles are being used in conjugation of various antigens and antibodies in lateral flow assays.
2. Therapy : Specific sizes of gold Nanoparticles absorb the specific wavelength of infrared light and get heated to a certain temperature. Coating of these gold Nanoparticles to infected cell can kill the tumor cells and patient could be cured without any side effect of drug dosages.
3. Probes : biological imaging applications and transmission electron microscopy.
4. Electronics : a Printable inks for the chip design.