In glucose biofuel cells (G-BFCs), glucose oxidation at the anode and oxygen reduction at the cathode yield electrons, which generate electric energy that can power a wide range of electronic devices. Research associated with the development of G-BFCs has increased in popularity among researchers because of the eco-friendly nature of G-BFCs (as related to their construction) and their evolution from inexpensive bio-based materials. In addition, their excellent specificity towards glucose as an energy source, and other properties, such as small size and weight, make them attractive within various demanding applied environments. For example, G-BFCs have received much attention as implanted devices, especially for uses related to cardiac activities. Envisioned pacemakers and defibrillators powered by G-BFCs would not be required to have conventional lithium batteries exchanged every 5–10 years. However, future research is needed to develop G-BFCs demonstrating more stable power consistency and improved lifespan, as well as solving the challenges in converting laboratory-made implantable G-BFCs into implanted devices in the human body. The categorization of G-BFCs as a subcategory of different biofuel cells and their performance is reviewed in this article.

Green synthesis of iron oxide nanoparticles using Argemone mexicana leaf extract serves as a sustainable route. The biosynthesized nanoparticles exhibit strong antioxidant activity, demonstrating potential for therapeutic applications.

This study presents the synthesis of polyaniline-coated silver (PANI-Ag) nanocomposites via in situ oxidative polymerization and their application in the removal of piracetam, an anti-Alzheimer drug, from aqueous solutions. The nanocomposites were characterized using XRD, FTIR, SEM-EDX, DLS, UV-Vis, and HRTEM. Adsorption experiments optimized key parameters, including pH (7), drug concentration (800 ppm), contact time (180 min), and temperature (65 °C), achieving a 99% removal efficacy. Kinetic and isotherm studies confirmed a Langmuir monolayer adsorption model with pseudo-second-order kinetics, indicating chemisorption. Additionally, the antioxidant activity of PANI-Ag nanocomposites was evaluated using DPPH (56.42%) and ABTS (76.43%) assays, demonstrating superior free radical scavenging compared to PANI alone. These findings highlight the dual potential of PANI-Ag nanocomposites as efficient drug removal agents and antioxidant materials, offering promising applications in environmental remediation and biomedical fields.