2014 Small World In Motion Competition

DNA micro-machine rolling across a fluorescently labeled RNA surface

Kevin Yehl

Affiliation
Emory University
Atlanta, Georgia, USA
Technique
Brightfield

Enzymatic hydrolysis of fluorescently labeled fuel drives the autonomous linear motion of DNA-based particle motors, where typically at this length scale, only random Brownian motion is observed.

C. elegans (nematode) cell division

Shaohe Wang

Affiliation
University of California, San Diego
La Jolla, California, USA
Technique
Confocal
Magnification
63x

Seam cell divisions in a live C. elegans expressing GFP labeled tubulin and mCherry labeled histone. An L3 stage larvae of C. elegans was anesthetized and mounted on an agarose pad. Images were taken at 20 seconds intervals and 5x2 um z sections for 10 minutes. In-focus images are displayed at each time point.