DNA nanotechnology involves the design and manipulation of DNA molecules for various applications in nanotechnology. This field utilizes the unique properties of DNA, such as its ability to self-assemble into complex nanostructures, to create nanoscale devices and materials. DNA nanotechnology has been used in a wide range of applications, including drug delivery, biosensing, and nanoelectronics. Researchers in this field are working to further develop and optimize DNA-based nanostructures for use in various fields of science and technology.