I'm trying to find out the main characteristics that differentiate a microfluidic asssay versis a lateral flow strip and which drawbacks exist.
I will focus on paper micro fluidic devices, as they are more similar to lateral flow strips (at least from my understanding).
Microfluidic assays take less time to complete than the lateral flow strip, taking advantage of the capillary effect.
Paper devices are quite cheap to produce, 10$ per square meter [Source]
So mainly they are cheaper and yield results much faster. Since they are a relatively new thing (first introduced in 2007 1) I'm not sure if that might mean that these assays are not as widespread as lateral flow strips or if they have any limitations that lateral flow strips don't have.
Also I'm not sure if this ought to be here in Biology, Chemistry or even Physics stack exchange, so feel free to redirect me if you consider this not to be the proper board.