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. Author manuscript; available in PMC: 2012 Dec 12.
Published in final edited form as: Biomacromolecules. 2011 Oct 31;12(12):4178–4182. doi: 10.1021/bm201214r

Figure 1.

Figure 1

μ2rheology measurements combine sample preparation in a microfluidic device with passive microrheological characterization. (a) Microfluidic channels formed in treated PDMS generate 50–100 aqueous droplet samples in an immiscible fluid using a T-junction. (b) The sample streams contain food dyes in this image to aid visualization. After the droplets are made, the device is sealed. The scale bar is 10 mm. (c) Microrheology is performed on each stationary droplet sample by tracking the thermal motion of dispersed fluorescent particles. The scale bar is 25 μm.