Graphene hair dyes

The journal Chem has reported today a study by a team of scientists led by Jiaxing Huang, from Northwestern University, about the preparation of a graphene oxide gel and its use as hair dye. This original use of graphene reflects the need for non-toxic air dyes, at the same time resisting to at least 30 shampoo uses. The innovative dye created by Dr. Huang’s group is a gel containing water and chitosan–acting as vehicle–with graphene oxide and ascorbic acid (vitamin C)–acting as a reducing agent.  This dyeing process requires as little as 10 minutes.

(Source: Chem)