Graphene is a new type of nano-material with high electric and thermal conductivity, which is 10 times stronger than low-carbon steel. In the latest graphene-based innovations, MIT engineers used this material to develop a new type of membrane that can filter nanoscale molecules in solution more than 10 times faster than current dialysis systems. Completely changed the dialysis process.
In addition to hemodialysis, which helps the kidneys do not work properly, patients remove waste from their blood. Scientists use dialysis (or dialysis) to separate impurities, purify drugs, and remove unwanted residues from chemical solutions. Modern dialysis membranes work quite slowly due to their thickness, but this new graphene membrane accelerates the filtration process by less than a nanometer thickness.
The MIT team developed a process for making ultra-thin layers of graphene that essentially functions as a molecular sieve. Then, the team created a film with holes of different sizes. This highly specific ability to customize pore size allows researchers to test the ability of different membranes to filter specific molecules.
They designed a graphene film with very small pores to pass only 0.66 nanometers wide potassium chloride molecules. The researchers found that the membrane can effectively pass through these molecules.
The researchers pointed out that although this new type of dialysis membrane has special application in accelerating the laboratory-scale separation process, it also has the potential to improve the hemodialysis system. The current hemodialysis treatment takes up to four hours.
The team’s research was published in the magazine “Advance Materialsâ€.
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