Knot theory intersects with various fields of mathematics, including topology and algebra, providing insights into the properties of space and shape. It has practical applications in biology, particularly in understanding DNA structure and behavior, as well as in chemistry for studying molecular structures. In physics, knot theory aids in the analysis of quantum field theories and the behavior of particles. Additionally, it finds relevance in computer science, particularly in algorithms related to data organization and network topology. Overall, knot theory serves as a crucial interdisciplinary tool with significant implications across multiple domains.