%0 Journal Article
%T Formation of Photosensitizing Crystalline C<sub>60</sub> Particles by Ink-Jet Method
%A Masahito Ban
%A Fusako Sasaki
%J World Journal of Nano Science and Engineering
%P 110-115
%@ 2161-4962
%D 2012
%I Scientific Research Publishing
%R 10.4236/wjnse.2012.22014
%X The crystalline fullerene C<sub>60</sub> particles were formed and immobilized on poly(dimethylsiloxane) (PDMS) substrates under the various discharge conditions by an ink-jet method, and investigated for the reactive oxygen species (ROS) generation property under visible light irradiation. The particles were synthesized by discharging a toluene solution dissolved C<sub>60</sub> and poly(methyl methacrylate) (PMMA) with the ink-jet spotting system. The ROS generation was evaluated by comparisons of the fluorescence intensities measured for the formed particles under green laser irradiation and in a dark room using fluorescent dyes, 2กฏ,7กฏ-dichlorofluorescein diacetate and dihydroethidium. The results of transmission electron microscope (TEM) observation showed that the formed particles consisted of crystalline C<sub>60</sub>. The optimal ink-jet discharge conditions for synthesizing the particles to generate more ROS were found. In the case of the optimal conditions, the structure in which the needle-like particles were three-dimensionally formed was confirmed. The surface area of the crystalline C<sub>60</sub> particles was calculated using the SEM observation results, and it was suggested that when the needle-like finer particles were three-dimensionally formed under the optimal conditions, increasing the surface area lead to an increase in the ROS generation amount.
%K Fullerene
%K Particle
%K Ink-Jet
%K Reactive Oxygen Species
%U http://www.scirp.org/journal/PaperInformation.aspx?PaperID=20165