Gold is a precious metal that is popular worldwide, whether used in jewelry or in electronic industries. Although gold is known for its beautiful yellow color, which is considered a hallmark of distinction, this color can change to other colors based on the nano size of gold particles.

This scientific phenomenon was recently studied by a team of researchers at the University of California, Berkeley. They discovered that the change in the nano size of gold particles leads to a change in their color, which could help improve many industrial and medical applications.

The color of gold depends on the nano size of its particles, which can be controlled by adjusting their size. When the nano size of gold particles changes, the color changes as well, and this is done by controlling the "surface plasmon resonance wavelength" of gold.

This process is achieved by changing the size of gold particles to a specific size, which leads to a change in the shape of gold atoms and a change in the frequency of surface absorption of light in the electromagnetic spectrum. By changing this frequency, the color of gold changes, and it can be easily controlled.

This phenomenon provides great opportunities for developing new technologies in many fields, especially in electronic and medical industries. This technology can be used in developing modern medical devices that use gold to improve medical imaging, as well as in developing UV protection technologies that require the use of gold.

In addition, this technology can be used in developing efficient solar panels, where gold can be used to design solar panels that work more effectively by improving the efficiency of light absorption.

It is important to note that this scientific study is an important step in developing gold technology and may open up new horizons for many industries and applications. It is expected that research in this field will continue to identify more potential uses for changing the color of gold based on the nano size of its particles.

You can conduct an experiment to change the color of gold based on the nano size of its particles at the following link