3D Printing of Reservoir Devices for Oral Drug Delivery: From Concept to Functionality through Design Improvement for Enhanced Mucoadhesion.

So far, microdevices for oral drug delivery have been fabricated as square or cylindrical reservoir structures with a localized and unidirectional release. The fabrication is usually carried out using sophisticated and costly microfabrication techniques. Here, 3D printing of microreservoirs on sacrificial substrates is presented.

First principles investigation of zinc-anode dissolution in zinc-air batteries.

With surging interest in high energy density batteries, much attention has recently been devoted to metal-air batteries. The zinc-air battery has been known for more than a hundred years and is commercially available as a primary battery, but recharging has remained elusive, in part because the fundamental mechanisms still remain to be fully understood. Here, we present a density functional theory investigation of the zinc dissolution (oxidation) on the anode side in the zinc-air battery.