Optically micropatterned culture of adherent cells.
We used a liquid-crystal spatial light modulator to project 473 nm light patterns surrounding a region of adherent cells and achieved an arbitrarily micropatterned cell culture. For a group of ∼60 cells, the cell boundaries fit the pattern of light within 15% deviation of the side length. We also demonstrated a wound-healing experiment with a definite starting temporal point by using this technique. While observing mitochondrial structures in the illuminated cells, we found that the 473 nm light damaged the integrity of mitochondria and thus prohibited cell proliferation in the illuminated region.
National Yang-Ming University, Institute of Biophotonics, Taipei 11221, Taiwan.
Jian-Long
JL
Xiao
Huei-Jyuan
HJ
Pan
Chau-Hwang
CH
Lee
D062028:Bioprinting / Q000295:instrumentation*; D002448:Cell Adhesion / Q000528:radiation effects*; D018929:Cell Culture Techniques / Q000295:instrumentation*; D045744:Cell Line, Tumor; D002469:Cell Separation / Q000295:instrumentation*; D004867:Equipment Design; D019544:Equipment Failure Analysis; D006801:Humans; D008175:Lung Neoplasms / Q000473:pathology / Q000503:physiopathology*; D052898:Optical Tweezers