Tungsten Diselenide Nanoparticles Produced via Femtosecond Ablation for SERS and Theranostics Applications.

Due to their high refractive index, record optical anisotropy and a set of excitonic transitions in visible range at a room temperature, transition metal dichalcogenides have gained much attention. Here, we adapted a femtosecond laser ablation for the synthesis of WSe nanoparticles (NPs) with diameters from 5 to 150 nm, which conserve the crystalline structure of the original bulk crystal. This method was chosen due to its inherently substrate-additive-free nature and a high output level.

N-protein vaccine is effective against COVID-19: Phase 3, randomized, double-blind, placebo-controlled clinical trial.

Background: Despite the success of first-generation COVID-19 vaccines targeting the spike (S) protein, emerging SARS-CoV-2 variants have led to immune escape, reducing the efficacy of these vaccines. Additionally, some individuals are unable to mount an effective immune response to S protein-based vaccines. This has created a need for alternative vaccine strategies that are less susceptible to mutations and capable of providing broad and durable protection.

Exploring the molecular reorientations in amorphous rosuvastatin calcium.

Molecular reorientations in rosuvastatin calcium, a drug that is widely used to prevent cardiovascular disease, were explored thoroughly by means of solid state nuclear magnetic resonance (H and C NMR) combined with calculations of steric hindrances. The experimental results reveal rich internal reorientational dynamics. All relaxation processes were tested in a broad range of temperatures and described in terms of their type and the associated energy barriers.

Prevalence of sensu lato and in ixodid ticks in the Far East of Russia.

sensu lato (s.l.) DNA was detected by PCR in Schulze, 1930, Koch, 1844 Nuttall et Warburton, 1915 and Olenev, 1932 ticks collected in the Amur region, the Jewish Autonomous region, the Sakhalin region and on the Khabarovsk territory.