Analysis of the Consequences of the COVID-19 Pandemic on People with Severe Mental Disorders.

For people with severe mental disorders (SMDs) the COVID-19 pandemic may pose a number of risks. These include the loss of needed care, a higher probability of infection, and the worsening of their mental health. To analyze the pandemic's impact on care received, relapses, loss of employment, and adherence to preventive guidelines in SMD sufferers, a multicenter retrospective cohort study was carried out comparing 185 patients diagnosed with SMD and 85 with common disorders.

Full solution processed mesostructured optical resonators integrating colloidal semiconductor quantum dots.

Herein we show a solution based synthetic pathway to obtain a resonant optical cavity with embedded colloidal semiconductor quantum dots (CSQDs). The optical cavity pore network, surrounded by two dense Bragg mirrors, was designed ad hoc to selectively host the quantum dots, while uncontrolled infiltration of those in the rest of the layered structure was prevented. Coupling between the optical resonant modes of the host and the natural emission of the embedded nanoparticles gives rise to the fine tuning of the luminescence spectrum extracted from the ensemble.

Characterization of mesoporous thin films by specular reflectance porosimetry.

The pore size distribution of mesoporous thin films is herein investigated through a reliable and versatile technique coined specular reflectance porosimetry. This method is based on the analysis of the gradual shift of the optical response of a porous slab measured in quasi-normal reflection mode that occurs as the vapor pressure of a volatile liquid varies in a closed chamber. The fitting of the spectra collected at each vapor pressure is employed to calculate the volume of solvent contained in the interstitial sites and thus to obtain adsorption-desorption isotherms from which the pore size distribution and internal and external specific surface areas are extracted.

Mesostructured thin films as responsive optical coatings of photonic crystals.

A synthetic route is presented to attain high-optical-quality multilayered structures that result from coupling ordered mesoporous titanium oxide thin films to the surface of a dense one-dimensional photonic crystal. Such architectures present spectrally well-defined photon resonant modes localized in the outer coating that finely respond to physicochemically induced modifications of its pore volume. The potential of these porous coatings in detection of environmental changes through variations of the photonic response of the ensemble is demonstrated by performing isothermal optical reflectance measurements under controlled vapor-pressure conditions.