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Marker ink transforms into graphene-based electric circuit for low-cost sensors  

Marker ink transforms into graphene-based electric circuit for low-cost sensors  

The first case of an electric circuit created using a simple marker and a laser beam shows that simple and sustainable materials can generate innovative applications on any surface, such as a coffee cup. 

The first case of an electric circuit created using a simple marker and a laser beam shows that simple and sustainable materials can generate innovative applications on any surface, such as a coffee cup. 

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