It is well-known that graphene is a new type of material with a wide range of applications and promising prospects, but the production cost of a good-quality graphene material is not low, which makes many companies afraid to use graphene in large quantities to produce products. When people realize this, many research teams hope to find new materials that are substituted or close to graphene, or find a simple and economical way to make graphene.
A research team at the Delft University of Technology in the Netherlands has carried out such studies, and recently published a research result in the ACS Synthetic Biology. The team used 3D printing to print certain types of bacteria on precise lines, and then removed the oxygen atoms of the graphene oxide to obtain graphene-like materials.
The research team said that graphene needs to be involved in a variety of toxic compounds during the production process, and then through a complex reaction to get graphene, graphene oxide is one of the raw materials, through the metabolic process of bacteria, can be The oxygen atoms of the graphene oxide are consumed, and the oxide is reduced. The entire reduction process needs to be supplemented with heating or the addition of certain compounds. Importantly, this method is more economical and safe.
Of course, the 3D printer used in the experiment was specially modified by the research team. It can print bacteria on a straight line that is only 1mm wide. The researchers said that this method of 3D printing and bacterial binding is not the first time. Some people have previously used a similar method to mix E. coli with a colloid produced by algae, and then printed on a plate containing calcium ions. Colloids will be fixed on the plate for positioning purposes.
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