This issue addresses carbon footprint reduction and energy efficiency in the healthcare sector, secure audio steganography based on vectorized LSB and chaos-driven encryption, and EMG-based multi-class gesture recognition, highlighting advances in sustainability, information security, and biomedical signal processing. It also includes an evaluation of data center energy efficiency in Türkiye, the development of fullerene–graphene hybrid photovoltaic devices, and a comparative assessment of deep learning architectures for tile defect detection, demonstrating the practical impact of AI in industrial inspection and quality control.