Nanoscience and nanotechnology represent groundbreaking and innovative domains dedicated to the exploration, manipulation, and application of materials at the nanoscale, which ranges from 1 to 100 nm. At this minute scale, materials display distinct physical, chemical, and biological characteristics, facilitating the creation of advanced technologies that surpass conventional approaches. The objective of nanoscience is to uncover the fundamental mechanisms and processes occurring at the nanoscale, while nanotechnology leverages this understanding to engineer new tools, systems, and devices with diverse practical applications. This field has revolutionized the creation of new materials by altering the properties of bulk substances. Notably, materials science has evolved to incorporate nanometer-sized components, leading to the fabrication of materials and structures that are unattainable through traditional techniques. Nanostructures are typically lightweight, robust, and highly adjustable, making them essential for the advancement of sophisticated manufacturing systems and tools. In the context of the marine environment, marine nanoscience investigates natural nanosystems and processes within the oceans, examining their mechanisms and impacts on structure and function. Subsequently, marine nanotechnology applies this knowledge to devise innovative tools, systems, and devices aimed at addressing challenges faced by marine ecosystems. Together, nanoscience and nanotechnology provide sustainable solutions for the future of marine systems, enhancing environmental protection and advancing scientific understanding.