Robots are becoming more and more miniaturized. In July of this year, MIT engineers successfully designed a cell-sized robot that can carry and collect data on the surrounding body environment, helping people monitor their health and even Carry medicine. Now MIT engineers have successfully found a way to synthesize this cell robot on a large scale, prepared by a controllable graphene splitting process.
In July, the Massachusetts Institute of Technology (MIT) in the United States newly designed a robot the size of a human egg cell, through the design of installing 2D electronic devices on colloids. But at that time, no process method was found to quickly prepare such micro-robots on a large scale. The team recently produced such robots on a large scale by "automatically perforating" 2D graphene materials and circuit materials.
First, the 2D circuit components are etched in a polymer sheet, the polymer circuit material layer is fixed on a sheet of graphene 2D material, and another graphene material substrate is perforated through a microarray printer, which contains electronic circuits. The material will form three layers of dots, and the substrate has only one layer of graphene. Then the researchers will split the substrate material under controllable pressure. The available part of the dots will remain intact, and the substrate material will split. .
The co-signed researcher Albert Liu of the papers involved in the research stated that “this general method of controllable splitting can be used as many large-scale manufacturing processes.†Basically any 2D material can be selected, which allows future researchers to tailor-made robots. Become possible, its thickness can reach atomic level. These synthesized cells can store information in a memory array, which can then be read using electrodes, or even erased and reused. In the experiment, the team has successfully encoded the information of the three letters M, I, and T into the memory array of the synthetic cell, and it has been proven that it can still be read after being suspended in water for several months.
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