Investigation on Dynamic Chemical Etching of Fiber Probe for Cell Isolation
A novel single fiber optic tweezers was proposed for cell isolation. Fiber tips were fabricated by dynamic chemical etching. The mechanically cleaved bare single mode fiber was dipped into Hydrofluoric acid containing a protective layer of Toluene at the top. By moving the fiber at variable speeds, a variety of tip shapes could be created. In our experiments, tip angle could be adjusted from 7deg to 55deg. Three-dimensional optical trap of a yeast cell could be formed by the fiber tip with less than 23deg tip.
Tojiro Aoyama, Hideki Aoyama, Atsushi Matsubara, Hayato Yoshioka and Libo Zhou
K. Taguchi et al., "Investigation on Dynamic Chemical Etching of Fiber Probe for Cell Isolation", Key Engineering Materials, Vols. 523-524, pp. 1065-1069, 2012