Laser ablation in a liquid environment is of considerable interest

as a new tool for preparing nanoparticles. Pioneering work by

Patil, Henglein, and others proved the possibility of nanoparticle

fabrication by quenching.1−3 Mafune´ et al. introduced a chemical approach to laser ablation in liquid by reporting the surfactant

effects on noble metal nanoparticle formation in water by laser

ablation of bulk noble metal,4 and their work triggered the

application of this technique to various material systems. Carbon-

related materials have also been the target of this technique for

exotic nanomaterial fabrication (e.g., nanodiamond, nanohorn, and


The advantages of “laser ablation in liquid” are (1) inexpensive

equipment for controlling the ablation atmosphere, (2) simplicity of

the procedure, and (3) the minimum amount of chemical species

required for synthesis, compared with the conventional chemical

process. Because of these advantages, laser ablation in liquid has

attractedmuch attention as a novel tool for nanoparticle fabrication.