Skip to main content
. Author manuscript; available in PMC: 2020 Aug 7.
Published in final edited form as: Adv Funct Mater. 2017 Sep 20;28(12):1702009. doi: 10.1002/adfm.201702009

Figure 6.

Figure 6.

A) The thin dual-layered microfluidic device integrated on a metal probe. i) Top view and ii) magnified top view with microchannel in orange color. B) Brightfield image of the GelMA/PEG hydrogel coating inside the microchannel. i) Top view; ii) cross-sectional view; and iii) porous PDMS membrane. C) Fluorescence images showing the diffusion of FITC-dextran (20-kDa MW) at different time points. D) Quantification of fluorescence intensities measured from the middle to the side along its radius of the microchannel at different time points. E) Time-lapse fluorescent signal change at a point 30 μm from the middle of the microchannel.