A general strategy to achieve see-through devices through the micro-structuring of colored functional materials.

Irrespective of the specific see-through device, obtaining optimal transparency remains the primary goal. In this work, we introduce a general strategy to enhance the transparency of various see-through devices. We achieve this by structuring the colored functional materials into imperceptible three-dimensional mesh lines, addressing a common challenge in multi-layer structures where each layer causes a reduction in transparency due to their color or opacity.

One-Step Palladium-Catalyzed Heterocyclic Ring Closure of Benzofurans with Aryl Iodides through a Heck-Type Pathway.

An operationally simple and robust method for the direct arylation and ring closure of benzofurans is reported. Besides the mild conditions and good reaction yields, the methodology is applicable for a wide range of derivatives using commercially available aryl iodides with complete C regioselectivity. The reaction is proposed to follow a Heck-type oxyarylation mechanism.

Correlation of Processing and Structure in an Ethylene-Glycol Side-Chain Modified Polythiophene via Combined X-Ray Scattering and 4D Scanning Transmission Electron Microscopy.

The results of a combined grazing incidence wide-angle X-ray scattering (GIWAXS) and 4D scanning transmission microscopy (4D-STEM) analysis of the effects of thermal processing on poly(3[2-(2-methoxyethoxy)ethoxy]-methylthiophene-2,5-diyl) are reported, a conjugated semiconducting polymer used as the active layer in organic electrochemical transistor devices. GIWAXS provides a measure of overall crystallinity in the film, while 4D-STEM produces real-space maps of the morphology and orientation of individual crystallites along with their spatial extent and distribution. The sensitivity of the 4D-STEM detector allows for collection of electron diffraction patterns at each position in an image scan while limiting the imparted electron dose to below the damage threshold.

Astodrimer sodium nasal spray forms a barrier to SARS-CoV-2 in vitro and preserves normal mucociliary function in human nasal epithelium.

COVID-19 remains a severe condition for many including immunocompromised individuals. There remains a need for effective measures against this and other respiratory infections, which transmit via virus-laden droplets that reach the nasal or oral mucosae. Nasal sprays offer potential protection against viruses.