Abstract
The promising technique of laser ablation in liquid (LAL) is attracting much attention to produce
nanoparticles of various materials using a simple experimental procedure. Because of the differences in
the formation process of nanoparticles in LAL from those in laser ablation in gas, the important factors,
which influence the formation efficiency of nanoparticles, are different between LAL and LAG. In this
review, we introduce factors and methods to improve formation efficiency. The stability of colloidal
nanoparticles is also an important aspect of LAL as a colloid synthesis technique. Although one of the
most remarkable features of LAL is that pure colloids are obtained, the stability and the usability of
colloids are greatly improved by stabilizing reagents.
