Prasanna Doddakunche Shivaramu

Creating polymer nanocomposites with tunable optical features is crucial for UV shielding and optoelectronic uses. Herein, a hydrothermal method was employed to synthesize Co ₂ SnO ₄ nanoparticles, which were then integrated into polyvinyl alcohol (PVA) at different concentrations (0.0, 0.25, 0.5, 1.0, 1.5, and 2.0 wt%) via the solution casting technique. The structural, morphological, and optical characteristics of these PVA/Co ₂ SnO ₄ nanocomposites were comprehensively analyzed. Spectroscopic Techniques such as X‐ray diffraction (XRD), Fourier‐transform infrared spectroscopy (FTIR), Raman spectroscopy, scanning electron microscopy (SEM), transmission electron microscopy (TEM), and energy‐dispersive X‐ray spectroscopy (EDX) were utilized for detailed characterization. Increasing Co ₂ SnO ₄ content shifted the surface from hydrophilic to hydrophobic behavior, improving moisture resistance and stability. Optical assessments showed strong absorption in the UV‐C range (250–300 nm), indicating excellent UV blocking. The optical band gap decreased from 4.78 to 4.04 eV with more filler showing direct energy band gap, along with increases in refractive index, extinction coefficient, Urbach energy, and optical conductivity, reflecting enhanced electronic transitions and charge transfer. Photoluminescence measurements showed a broad emission at 491 nm under UV excitation, with a notable Stokes shift, confirming effective UV–visible photonic conversion. Overall, the PVA/Co ₂ SnO ₄ nanocomposites, in the form of flexible thin films, exhibit tunable surface wettability, strong UV‐shielding capability, and enhanced optical properties. These characteristics enable their use as protective coatings and functional layers in UV‐filtering devices, flexible optoelectronics components, and photonic applications.

We report a supercritical fluid (SCF)-assisted synthesis of a tightly integrated MXene/MoS ₂ /PANI ternary heterostructure for high-performance supercapacitor applications. The SCF route enables rapid nucleation, controlled crystallization, and intimate interfacial coupling between Ti ₃ C ₂ T _x MXene and MoS ₂ nanosheets, followed by uniform in situ polymerization of polyaniline (PANI) to construct a hierarchical conductive network. This rationally engineered architecture synergistically combines electric double-layer capacitance and pseudocapacitance while minimizing charge-transfer resistance and enhancing ion transport kinetics. The optimized composite delivers a high specific capacitance of ∼325 F g ⁻¹ along with excellent cycling durability over 10,000 cycles, exhibiting progressive capacitance activation attributed to improved electrolyte accessibility and interfacial conductivity. The study introduces a time-efficient and structurally controlled strategy for fabricating MXene-based ternary heterostructures and establishes a scalable pathway toward advanced hybrid electrode materials for next-generation energy storage systems.

Flexible and high-performance supercapacitors are emerging as pivotal components in next-generation energy storage systems. In this work, a novel ternary Cu ₂ ZnSnS ₄ /MoS ₂ /CNT (CZTS/MoS ₂ /CNT) heterostructure was synthesized via a one-pot hydrothermal method and systematically evaluated for its electrochemical performance. Structural and morphological analyses (XRD, Raman, SEM, and TEM) confirmed the formation of a well-integrated heterostructure with uniform anchoring of CZTS and MoS ₂ nanoparticles on conductive CNT networks, fostering enhanced charge transport and ion diffusion. The ternary composite exhibited an impressive specific capacitance of 273.2 F g ⁻¹ at 1.25 A g ⁻¹ , significantly outperforming pristine CZTS (141.9 F g ⁻¹ ) and binary CZTS/MoS ₂ (154.8 F g ⁻¹ ). Furthermore, it demonstrated exceptional energy and power densities of 97.13 Wh kg ⁻¹ and 1.076 kW kg ⁻¹ , respectively, along with 98% capacitance retention over 1000 cycles. The superior performance arises from the synergistic interplay of MoS ₂ ’s redox-active surfaces and CNT’s high electrical conductivity, which together enhance electrochemical reversibility and mechanical robustness. This facile, scalable, and eco-friendly synthesis approach underscores the CZTS/MoS ₂ /CNT heterostructure as a promising electrode material for flexible and sustainable supercapacitor applications.

Epoxides are well‐known compounds as anticancer agents. In this article, we present the synthesis of novel 3′‐phenyl‐1‐((1‐aryl‐1H‐1,2,3‐triazol‐5‐yl)methyl)spiro[indoline‐3,2′‐oxiran]‐2‐one derivatives by the regioselective reaction of sulfur ylides with 1,2,3‐triazole‐tethered isatins and their anticancer effects on hepatocellular carcinoma (HCC) cells HepG2 and HCCLM3. The cell viability assays indicated that RR‐01 and RR‐07 had emerged as the most potent cytotoxic agents on the tested cell lines. Colony formation and migration assay results confirmed the anticancer effects of these compounds by inhibiting the formation of colonies and migration. Further, nuclear fragmentation staining assay showed that the compounds induce apoptosis. Acridine orange staining assays showed that our lead candidates (RR‐01 and RR‐07) induced autophagy in liver cancer cells.

A novel microwave assisted protocol for the rapid synthesis of methyl 1-benzyl-2-(4-fluoro-3- nitrophenyl)-1H-benzo[d]imidazole-5-carboxylate (TJ08) with potent antileukemic activity has been developed with excellent yields in 31 min of reaction time over 5 steps, whereas the conventional heating method required around 17 h. In this method, n-propanephosphonic acid anhydride (T3P) was used as a coupling reagent for amidation, during this reaction the in situ generated byproduct n-propylphosphonic acid subsequently catalyzes the cyclization reaction to form benzimidazole ring and hence this novel protocol affords to synthesize the novel benzimidazole derivatives expeditiously to develop new druggable compounds.