Photoactive Brownmillerite Multiferroic KBiFeO and Its Potential Application in Sunlight-Driven Photocatalysis.

KBiFeO (KBFO) is an upcoming promising brownmillerite-structured multiferroic photoactive material for next-generation photovoltaic and photocatalytic applications. In the present work, KBFO has been developed using multistep thermal treatment method to reduce the volatility of constituent elements and improve the stability of compound. The band gap of KBFO (found to be ∼1.

Hybrid functional calculations of electronic and thermoelectric properties of GaS, GaSe, and GaTe monolayers.

Motivated by the recent success in the experimental synthesis of two-dimensional group-III monochalcogenides, we investigate the structural, electronic and thermoelectric properties of GaS, GaSe and GaTe monolayers based on the first-principles approach by using density functional theory and the semi-classical Boltzmann transport equation. The electronic band structures demonstrate that the GaS, GaSe, and GaTe monolayers are wide bandgap semiconductors having an indirect bandgap of 3.73 eV, 3.

HoCrO3 and YCrO3: a comparative study.

A comparative study on structural, optical and magnetic properties of orthorhombic perovskite-like isostructural compounds HoCrO3 and YCrO3 was carried out, wherein Ho(3(+)) is a magnetic ion and Y(3+) is non-magnetic. We found almost identical structural parameters for both compounds, however a significant difference was observed in low wavenumber Raman active phonon modes. The effect of local field on optical transitions of Cr ion is studied by diffused reflectance spectroscopy.

Immunoglobulin immobilized liposomal constructs for transmucosal vaccination through nasal route.

The aim of the present investigation was to evaluate the prospective of surface-engineered vesicular carriers for mucosal immunization via the nasal route. IgG antibody was immobilized on the surface of hepatitis B surface antigen (HBsAg) antigen-loaded liposomes. The developed formulations were characterized on the basis of physicochemical parameters, such as morphology, particle size, polydispersity index, entrapment efficiency, and zeta potential.