Microfluidics is great. I'd love to see opto-microfluidics work, which is when you coat a display in a thin layer of the same material you use to make photodiod

Microfluidics is great. I'd love to see opto-microfluidics work, which is when you coat a display in a thin layer of the same material you use to make photodiodes so that you can switch the power on/off using light from a normal LCD display. Anyone who can get that to work reliably will open up a whole lot of new form factors for microfluidics. (Bonus points if you couple that with LCD-driven resin 3D printing, so that you can move/mix resin around and harden it using one device)