The Chinese University of Hong Kong announced on December 17 that Chen Shiqi, a professor of the Department of Mechanical and Automation Engineering at the School of Engineering, and his team's “Digital Holographic Nano 3D Printer” were selected by the Global Top 100 Technology R&D Awards (R&D 100) as 2018 One of the world's top 100 innovative inventions. The printer uses revolutionary digital holographic laser scanning and beam shaping technology to print complex, fine hair-like fine components at high speeds and achieve nanometer-level printing accuracy.
Chen Shiqi said that the printer's multi-focus scanning technology can move to any point in the printing space at the same speed, even without the structure and material support, it can print complex overhang structure and precise and delicate micro-finished products. For example, photonic crystals, micro-nano fluid devices, simulated biological tissues and scaffolds, drug delivery tools, etc., have created innovative technologies for nanotechnology, advanced materials and medical tools.
In optogenetic research applications, the printer can also accurately stimulate multiple neurons in the biological brain without harming surrounding structures. It can be used to study brain circuits and specific functions, such as mouse olfaction, zebrafish vision, etc. The advantages of 3D laser scanning extend to medical and basic biological research.
According to reports, the 56-year-old global top 100 technology research and development awards are known as "creative science Oscar", in recognition of the global research and development pioneer and its technological revolution. Innovative inventions that have won awards over the years include inkjet printers (1967), lithium batteries (1971), ATM teller machines (1973), HDTV HDTV (1998), and artificial retina (2009).