Ranchi University is a public state university in Ranchi, Jharkhand, India. It was established in 1960 by an Act of the Bihar legislature. Ranchi University offers degrees in undergraduate, post-graduate, M. Phil and doctorate programs..
A novel high-entropy perovskite, Ba(Ti0.2Zr0.2Hf0.2Sn0.2Ce0.2)O-3, was successfully synthesized through a conventional solid-state reaction route and finally sintered at 1350 degrees C for 12 h. Powder X-ray diffraction and Rietveld refinement confirmed the formation of a single-phase cubic structure with space group Pm-3m. Scanning electron microscopy coupled with EDX mapping revealed an uniform microstructure and homogeneous elemental distribution. The electrical properties were investigated using impedance spectroscopy over a temperature range of 35 to 495 degrees C and a frequency range of 100 Hz to 1 MHz. The real part of impedance decreased with increasing temperature, indicating negative temperature coefficient of resistance (NTCR) behaviour. The imaginary impedance and electrical modulus spectra exhibited temperature-dependent relaxation with peak shifting toward higher frequencies, confirming thermally activated charge transport. The Nyquist plot analysis revealed separate contributions from grains and grain boundaries, demonstrating mixed bulk and interfacial conduction mechanisms. These results establish Ba(Ti0.2Zr0.2Hf0.2Sn0.2Ce0.2)O-3 as a promising candidate for high-temperature electronic and sensing applications.
Introduction This study aims to conduct a comprehensive transcriptome analysis of Grewia asiatica (Phalsa) to identify molecular markers and differential gene expression in leaf and root tissues. G. asiatica is recognized for its medicinal properties, attributed to its rich phytochemical profile, including antioxidant, anti-inflammatory, antimicrobial, and hypoglycemic effects. However, genetic insights into the molecular basis of these bioactive properties remain limited.Methodology High-throughput Illumina sequencing was performed, generating 32.97 million clean reads from roots and 33.96 million from leaves. A 98.75% complete de novo assembly yielded 41,678 unigenes. SNP and SSR markers were identified, and transcription factors across 100 families were characterized. Differential gene expression analysis was conducted, followed by Gene Ontology (GO) and Kyoto Encyclopedia of Genes and Genomes (KEGG) enrichment analyses. Key differentially expressed genes (DEGs) were validated through qRT-PCR.Results A total of 316,613 SNPs were identified in roots and 247,967 SNPs in leaves. SSR analysis revealed 21,634 markers, with mononucleotide repeats being predominant. A total of 5,781 transcription factors (TFs) were characterized, including members of the C2H2, MYB-HB-like, and bHLH families. Differential expression analysis identified 4,643 DEGs, with flavonoid biosynthesis genes upregulated in leaves and lignin-associated genes upregulated in roots.Discussion GO and KEGG analyses highlighted significant enrichment of metabolic and biosynthetic pathways. The medicinal benefits of G. asiatica are linked to its antioxidant properties, which combat oxidative stress; anti-inflammatory effects, which may aid in arthritis relief; antimicrobial activity against pathogens; hypoglycemic effects for blood sugar regulation; and iron content, which is beneficial for anemia treatment.Conclusion This study provides valuable SNP and SSR markers and offers insights into the genetic mechanisms underlying the medicinal properties of G. asiatica. These findings support future molecular breeding programs and pharmacological research on this underutilized medicinal plant.
The concept of high-entropy has recently emerged as a promising strategy in the development of advanced thermal barrier coating (TBC) materials. By introducing mass and size disorder through the incorporation of multiple distinct cations at a single crystallographic site in mixed oxides, high-entropy oxides (HEOs) can be designed to exhibit stabilized single-phase structures with intrinsically low thermal conductivities. In this work, we report the successful solid state synthesis and comprehensive characterization of three novel single-phase high-entropy perovskites: Ba(Ti1/5Zr1/5Hf1/5Sn1/5Mn1/5)O3, Ba(Ti1/5Zr1/5Hf1/5Sn1/5Ce1/5)O3, and Sr(Ti1/4Zr1/4Hf3/20Sn1/4Mn1/10)O3. The compounds Ba(Ti1/5Zr1/5Hf1/5Sn1/5Mn1/5)O3, Ba(Ti1/5Zr1/5Hf1/5Sn1/5Ce1/5)O3, and Sr(Ti1/4Zr1/4Hf3/20Sn1/4Mn1/10) exhibit the low thermal conductivities of approximately 1.84 Wm−1 K−1, 1.72 Wm−1 K−1, and 0.72 Wm−1 K−1, respectively, at 800 K. The Sr-based compound exhibits an ultra-low average thermal conductivity of 0.63 W·m⁻1·K⁻1, which remains nearly constant over the temperature range of 300–800 K. This value corresponds to an almost 68
With few simplifying but reasonable assumptions, some mathematical aspects of electroinitiated polymerization has been discussed in this research. The mathematical relationship between electrolysis current and the initial rate of free radical polymerization was derived. In the case of free radical polymerization, the initial rate was proportional to the half power of electrolysis current. The relationship between electrolysis current and the average degree of polymerization was also derived. Here, the mathematical relationship between electrolysis current and kinetic chain length for direct current control of a polymerizing system was also deduced.
Biosynthetic approaches for nanoparticle production have garnered considerable attention amid growing interest in green and sustainable chemistry. Plant-derived materials have been used as an alternative method for synthesizing metal and metal oxide nanoparticles, as these approaches are eco-friendly, cost-effective, and energy-efficient, and they eliminate the need for toxic chemicals. Plant extracts have attracted the most interest among bio-entities because of their unique natural properties, which enable them to reduce and stabilize metal nanoparticles in a single-step synthesis. Cannabis sativa has emerged as a highly promising source of green nanoparticles, owing to its unique and diverse phytochemical profile, warranting thorough exploration of its benefits and mechanisms. In this review, we focus on the synthesis of certain metal and metal oxide nanoparticles (M/MO NPs) by using Cannabis sativa plant extract. It is a natural source that may serve as a stabilizing, capping, and reducing agent as it contains various bioactive phytochemicals. Cannabinoids and non-cannabinoid components are among the complex variety of secondary metabolites found in it, including non-cannabinoid phenols, flavonoids, terpenes, alkaloids, and other substances. These constituents result in smaller particles and significantly affect the activities of M/MO NPs.
