Development of HPTLC method for simultaneous determination of quercetin and kaempferol in leaf extract of Hibiscus mutabilis.

The aim of this study was to develop and validate a densitometric High-Performance Thin-Layer Chromatography (HPTLC) method for the simultaneous quantification of quercetin (Q) and kaempferol (K) in Hibiscus mutabilis leaf extracts. The analyses were performed on silica gel 60 F254 plates using a mobile phase composed of toluene, formic acid, and ethyl acetate (6:0.4:4, v/v/v).

Physical, optoelectronic and thermoelectric characteristics of double perovskite (SrScBiO) for green energy technology using computations.

This work presents the investigation of physical characteristics including structural, electronic, elastic, optical and thermoelectric, of the double perovskite (DP) oxide SrScBiO with the aid of the FP-LAPW method, dependent on DFT combined with BoltzTraP code. To incorporate the inclusion of exchange as well as correlation effects, approximations like LDA and three different forms of GGA [PBE-GGA, WC-GGA & PBEsol-GGA] are applied. The mBJ-GGA method including spin-orbital coupling (SOC) & not including SOC was utilised in this investigation and it was carried out in the WIEN2k code.

Modeling and simulation of multifaceted properties of XNaIO (X = Ca and Sr) double perovskite oxides for advanced technological applications.

Context: In this study, the authors have investigated the structural, optoelectronic, thermoelectric, and thermodynamic properties of CaNaIO and SrNaIO double perovskite oxides. Both materials exhibit semiconductor behavior with direct band gaps (E) of 0.353 eV and 0.

Progress in theoretical study of lead-free halide double perovskite NaAgSbX (X = F, Cl, Br, and I) thermoelectric materials.

Context: Herein, we have studied progressively novel metal lead-free halide double perovskite renewable energy materials. Due to their potential use in electronic devices, researchers have investigated these materials with a lot of interest. From the electronic structure, we have found that these are the indirect band gap semiconductors within the range between 1.

COVID-19: Consequences on pregnant women and neonates.

Introduction: Human species is confronting with a gigantic global COVID-19 pandemic. Initially, it was observed in Wuhan, China, and the COVID-19 cases spread across the globe with lightning speed and resulted in the 21st century pandemic. If scientific reports are taken care of, it is noteworthy that this virus possesses more specific characteristics due to its structure.