Nanoemulsion-Loaded Capsules for Controlled Delivery of Lipophilic Active Ingredients.

Nanoemulsions have become ideal candidates for loading hydrophobic active ingredients and enhancing their bioavailability in the pharmaceutical, food, and cosmetic industries. However, the lack of versatile carrier platforms for nanoemulsions hinders advanced control over their release behavior. In this work, a method is developed to encapsulate nanoemulsions in alginate capsules for the controlled delivery of lipophilic active ingredients.

High-Throughput Contact Flow Lithography.

is achieved by combining flow contact lithography in a multichannel microfluidic device and a high capacity 25 mm LED UV source. Production rates of chemically homogeneous particles are improved by two orders of magnitude. Additionally, the custom-built contact lithography instrument provides an affordable solution for patterning complex microstructures on surfaces.

Adsorption-Mediated Electrochemical Sensing of Halides.

A new strategy for detecting halides is presented that employs gold electrodes plated to expose a monolayer of silver atoms. Cl , Br , and I ions each adsorb onto this surface and stochastically produce electrochemical changes (see picture; upd=underpotentially deposited) in the stripping characteristic of the silver layer that reflect the identity and surface coverage of these halides. The latter provides measurements that relate to the solution concentrations of the halides.