Our country has developed a three-dimensional optical fiber micro-tweezers at the end of commercial optical fibers. The output power of the micro-tweezers is more than 100,000 times that of traditional optical tweezers.

According to Anhui University, Pan Deng, a young teacher from the National Key Laboratory of Optoelectronic Information Acquisition and Protection Technology, has collaborated with a team from the University of Science and Technology of China to propose a femtosecond laser composite manufacturing method for fiber-based integrated devices. They have constructed a three-dimensional optical fiber tweezer at the end of a commercial optical fiber, achieving high precision, low damage, and programmable three-dimensional manipulation of micrometer-scale targets. The research results were recently published in the international journal "Nature". The output force of the three-dimensional optical fiber tweezer built by the research team is over 100,000 times that of traditional optical tweezers, enabling precise manipulation of micrometer-scale targets and accurate assembly of complex microstructures, demonstrating important application value in the field of micro-manipulation. At the same time, this optical fiber tweezer acts like a "micro-dexterous hand" at the cellular scale, allowing for precise manipulation of microscopic objects such as single cells and micro-scale sampling within spaces as narrow as hundreds of micrometers, providing a new technological pathway for life health and minimally invasive medical applications.