A field-effect transistor (FET) based on ultrathin Ti3 C2 -MXene micropatterns is developed and utilized as a highly sensitive biosensor. The device is produced with the microcontact printing technique, making use of its unique advantages for easy fabrication. Using the MXene-FET device, label-free probing of small molecules in typical biological environments and fast detection of action potentials in primary neurons is demonstrated.

Ultrathin Ti3 C2 -MXene micropatterns in field-effect transistors enable label-free, fast detection of action potentials in primary neurons, offering potential for biosensor applications.

Paper

Ultrathin MXene‐Micropattern‐Based Field‐Effect Transistor for Probing Neural Activity

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