Tamm Plasmon Resonance as Optical Fingerprint of Silver/Bacteria Interaction.

The incorporation of responsive elements into photonic crystals is an effective strategy for fabricating active optical components to be used as sensors, actuators, and modulators. In particular, the combination of simple multilayered dielectric mirrors with optically responsive plasmonic materials has proven to be successful. Recently, Tamm plasmon (TP) modes have emerged as powerful tools for these purposes.

Chest x-ray in the COVID-19 pandemic: Radiologists' real-world reader performance.

Purpose: To report real-world diagnostic performance of chest x-ray (CXR) readings during the COVID-19 pandemic.

Methods: In this retrospective observational study we enrolled all patients presenting to the emergency department of a Milan-based university hospital from February 24th to April 8th 2020 who underwent nasopharyngeal swab for reverse transcriptase-polymerase chain reaction (RT-PCR) and anteroposterior bedside CXR within 12 h. A composite reference standard combining RT-PCR results with phone-call-based anamnesis was obtained.