Colloidal Silver Nanoparticles

Introduction

Colloidal silver is a mineral solution containing silver ions and small charged particles which are suspended in a liquid medium. When the particles have the same electrostatic charges, they repel each other; this creates a uniform suspension of particles throughout the medium. Although silver ions are important, a 100% solution of silver ions is not colloidal silver. Various names have been used to describe colloidal silver, such as silver sols. Sometimes colloidal silver is also called Nano Silver, which contains particles in the range of 1 to 100 nm.