Sustainable and Intelligent Technologies in the Modern Nail Industry: A Review of Biopolymer Materials, Adaptive Photopolymerization Systems and Digital Education

The modern nail industry is undergoing a profound transformation driven by sustainability, intelligent materials, and digital technologies. This review article synthesizes recent advances in biodegradable biopolymer coatings, adaptive UV/LED photopolymerization systems, nanotechnology-based safety innovations, and the digitalization of professional education in nail services. Special attention is given to eco-friendly cellulose- and chitosan-based coatings that replace toxic solvents and persistent polymers, significantly reducing environmental and occupational health risks. Intelligent curing systems employing real-time optical feedback and adaptive control are reviewed as a new standard for safe photopolymerization. The article also examines the growing role of nanomaterials in enhancing mechanical strength, antibacterial protection, and optical performance of nail coatings. Finally, the integration of digital learning platforms into vocational education is discussed as a key driver of sustainable technological adoption. Collectively, these developments demonstrate the emergence of the nail industry as a science-driven, environmentally responsible, and digitally enabled sector.