Flexible Hybrid Diamond Biosensor

Executive Summary

A unique fabrication method creates a new flexible and implantable thin film sensor for the biochemical, medical and neural engineering fields. This diamond-polymer hybrid demonstrates improved biocompatibility, durability and chemical sensing capabilities. 

Description of Technology

The rigidness and attachment incompatibilities of boron-doped polycrystalline diamond (BDD) limits its use as an implantable biosensor on soft tissue. A hybrid polycrystalline diamond/polymer thin film developed by MSU resolves these fabrication issues while improving dopamine detection capabilities in the presence of chemical interference. This new technology circumvents BDD’s rigidity by growing a thin flexible diamond film. It also creates a more secure bond by partially wrapping the polymer around the diamond.

Key Benefits

• Diamond sensor with flexibility
• Strong and secure diamond attachments
• One sensor to detects many chemicals
• Biocompatible Young’s modulus
• Improved signal to noise ratio

Applications

• Brain implant
• Explosive chemical detection
• Sweat chemical detection
• Optogenetics

Patent Status:

Patent Pending

Licensing Rights Available

Full licensing rights available

Inventors:

Dr. Li Wen, Fan Bin

Tech ID: 2016-0024, 2017-0104