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. Author manuscript; available in PMC: 2015 Mar 1.
Published in final edited form as: IEEE J Sel Top Quantum Electron. 2014 March-April;20(2):6800907. doi: 10.1109/JSTQE.2013.2280501

Fig. 6.

Fig. 6

Validation of magnetic Dynabead response from cancer cells. Instantaneous spatial light interference microscopy (iSLIM) image of cancer cells with targeted Dynabeads show high standard deviations in time at the location of the Dynabeads. The data were taken using iSLIM with a 40×/0.75NA objective. The time lapse was taken at 13 Hz for 2 s, and then processed to map the standard deviation of each pixel. The red and blue colors indicate areas with high and low standard deviations of the optical path length, respectively. Scale bar indicates 30 µm. Color bar units are radians. Dotted line approximates the contour of the cell.