Silver Oak University is located in Ahmedabad, Gujarat, India.
The increasing environmental problems concerning the accumulation of poly lactic acid (PLA) based bio-composite, nonbiodegradable packaging waste with Reduced Graphene Oxide-treated Sisal Fiber (SF) and banana fiber has been developed with the addition of lignin as bio-filler. The aim were come up with biodegradable packaging material which has a high-level of environmental and chemical strength as sustainable modification to conventional plastics. It produces 5 composites that hold a fixed PLA concentration of 60wt
Wearable electronics necessitate flexible, safe, and high-efficiency energy storage systems to power integrated sensors for real-time health monitoring; however, traditional metal-ion supercapacitors are hindered by limited energy density, mechanical rigidity, and safety issues for skin-contact applications. To tackle these issues, a band-aid-style portable AIHSC was created utilizing a Ti₃C₂Tₓ/ WSe2 nanocomposite for positive electrode, activated carbon for negative electrode, and a PVA/(NH₄)₂SO₄ gel electrolyte on flexible textile substrate. The Ti₃C₂Tₓ/WSe2 heterostructure was synthesized to synergistically improve electrical conductivity, ion transport, and pseudocapacitive charge storage, while flexible electrodes were produced using a scalable doctor-blade coating method. The electrochemical assessment demonstrated that Ti₃C₂Tₓ/WSe2 electrode exhibited a substantial specific capacitance of 252 F g⁻¹ in 1 M (NH₄)₂SO₄, whereas the constructed AIHSC attained a specific power density of 1332 W kg⁻¹, capacitance of 120 F g⁻¹, and an energy density of 60 Wh kg⁻¹, maintaining 92
This paper provides a green and analytical design for improving the dielectric performance of epoxy-based composites through biochar from rice husk and by hybridizing with Fe3O4 nanoparticles. Biochar from rice husk was produced through pyrolysis to 500 degrees C and resulted in a carbon-based porous material characterized by microscopic, structural and elemental analysis (SEM, XRD, EDX). The epoxy composites were prepared with biochar and biochar-Fe3O4 fillers, and with 1, 2 and 3 wt.% loadings. The dielectric performance with 2 wt.% loading, specifically in hybrid, form had the best dielectric performance and included significant increases in dielectric constant and AC conductivity due to interfacial polarization and charge migration. Further analysis was provided through the electric modulus method that scrutinized the dielectric loss and gave consistent responses for relaxation. Prediction of the real (epsilon ') and imaginary parts (epsilon '') of permittivity was achieved through ensemble learning models with a high degree of accuracy (R-2 > 0.99) and demonstrated the use of predictive analytics for materials research. The outcome discussed here provides evidence that endorsement of these biochar-based fillers, along with computational methods, could encourage sustainable and successful usages of advanced materials in electronics, energy stores and EMI shielding.
Over the past four decades, fluorescence-based sensors have evolved into the most efficient methods for precise and reliable detection of small-molecule toxicants. Nitroaromatic compounds, have utmost significant concern due to their high toxicity, environmental persistence, and potential threat to human health and safety. Herein, we report the design, synthesis, and comprehensive characterization of a di-fluorescein-functionalized oxacalix[4] arene (DFOC), developed as a highly selective fluorescence "Turn-Off" sensor capable of sensitive and discriminating detection of 4-nitrophenol (4-NP). The probe demonstrates excellent photophysical stability and marked fluorescence quenching upon interaction with 4-NP. Spectrofluorometric titration confirms that the quenching is primarily governed by a photoinduced electron transfer (PET) process, which is aided by strong host-guest interactions, such as pi-pi stacking and hydrogen-bonding interactions between DFOC and the electron-deficient aromatic nitro group. Among a library of structurally analogous nitroaromatics, DFOC displays notable selectivity toward 4-NP, establishing its potential as a practical and efficient fluorescence-based platform for real-time detection of nitroaromatic compounds in environmental samples.
