As an important branch of microactuators, swimming micro/nanorobots provide revolutionary solutions for various fields such as biomedicine, environmental monitoring, and nanoengineering due to their small size, high thrust-to-weight ratio, and good controllability, and they can enter into narrow spaces that traditional robots cannot reach. In recent years, with the continuous development of material science, nanotechnology, and biotechnology, significant progress has been made in the research on swimming micro/nanorobots. However, the research and application of swimming micro/nanorobots still face many challenges such as efficient motion and control in complex environments, biocompatibility and biodegradability, and clinical applications. Therefore, this article reviewed the progress of swimming micro/nanorobots in the fields of drive, design, manufacturing, control, and application, analyzed their development trends, and proposed future development suggestions, so as to provide a reference and inspiration for scholars in related fields for developing and applying swimming micro/nanorobots.

Marine devices serve as the backbone of marine science research, marine resource exploitation, and marine environmental safety. This paper briefly analyzes the opportunities and challenges encountered by China in the field of marine devices. In terms of ship technologies industry, devices for marine resource exploitation and deep-sea exploration, the paper summarizes the technological status both in China and other marine powers and sorts the advanced technologies that are the most noteworthy as well as key directions for future development.