Algae for biofuels as an alternative to fossil fuels. Copyright: toa555@AdobeStock

This review discusses important role of activated carbon derived from biomass in increasing the environmental quality and energy sustainability. It differentiates green and non-green activated carbon and gives in-depth knowledge of the synthesis techniques. Applications in clean fuel production and wastewater remediation, as well as implications for greenhouse gas reduction, have been examined.

This review is an invaluable resource to enhance biodiesel production processes while aligning with sustainability goals. It offers a deep dive into the latest process intensification technologies and advancements, presenting a clear pathway toward more efficient and eco-friendly biodiesel production. The review comprehensively explores various process intensification technologies, including reactive distillation, microwave, ultrasonic, and microreactors, providing detailed descriptions of each. It delves into recent advancements in these technologies, highlighting strategies for improving efficiency and sustainability. Additionally, it addresses the challenges posed by these advanced technologies, offering insights into potential solutions.

This study presents a sustainable method for treating industrial wastewater using HAP-based nanocomposites. The approach features a fixed-bed column system that effectively removes harmful heavy metals such as Cr²⁺, Cu²⁺, and Ni²⁺ from contaminated water. The purified water is stored for reuse, thereby enhancing environmental health and supporting the circular economy. This innovative method addresses wastewater management challenges while transforming waste into a valuable resource.

Fluorescence-based biosensors are transforming diagnostics through real-time, sensitive, and specific detection of biological and chemical targets. This review highlights key design principles, biosensor types, and emerging applications while addressing challenges and future directions in the field.

This review explores key bioactives in brown algae and their antioxidant, anti-inflammatory, anticancer, and antimicrobial properties. Covering studies from 2014 to 2024, it highlights their relevance in pharmaceuticals, nutraceuticals, cosmetics, and foods, while addressing challenges and future directions to unlock their full potential.