Hospital Care for Opioid use in Illinois, 2016-2019.

This study analyzes trends in hospital emergency room visits and admissions for patients with opioid diagnoses seen at 214 hospitals in Illinois over 42 months. Visits were coded hierarchically for opioid overdose, dependence, abuse, or use. Visit rates per 100,000 were stratified by zip code level of poverty.

A versatile valving toolkit for automating fluidic operations in paper microfluidic devices.

Failure to utilize valving and automation techniques has restricted the complexity of fluidic operations that can be performed in paper microfluidic devices. We developed a toolkit of paper microfluidic valves and methods for automatic valve actuation using movable paper strips and fluid-triggered expanding elements. To the best of our knowledge, this is the first functional demonstration of this valving strategy in paper microfluidics.