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. Author manuscript; available in PMC: 2019 Aug 21.
Published in final edited form as: Adv Funct Mater. 2018 Apr 14;28(24):1706635. doi: 10.1002/adfm.201706635

Figure 3.

Figure 3.

Optical waveguides made from biological cells. (a) Pictures showing light scattering of a laser beam propagating in seawater containing suspended Synechococcus cyanobacteria when the optical power is low (top) or high (bottom) enough to optically trap the tiny bacteria along the beam so that they form a light guide.[38] (b) Simulation of optical trapping of E. coli bacteria by a laser beam light and light propagation.[39] (c) Adipocyte cells containing lipid droplets that generate WGM optical resonance.[4i]