Chemical sensors with non-covalent surface modification of graphene

US11079371B2 · kind B2 · utility

Assignees

• Boston Scientific Scimed, Inc. · US
• Regents of the University of Minnesota · US

Inventors

• Xue Zhen · Minneapolis, US
• Philippe Pierre Joseph Buhlmann · Minneapolis, US
• Steven J. Koester · Toledo, US
• Yao Zhang · Beijing, CN
• Justin Theodore Nelson · Minneapolis, US

Key dates

• Filing date: Feb 20, 2019
• Grant date: Aug 3, 2021
• Expiry date: Nov 6, 2039

Classification

• Technology area (CPC G): Physics
• CPC primary: G01N27/4146
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

Embodiments herein relate to chemical sensors, devices and systems including the same, and related methods. In an embodiment, a medical device is included. The medical device can include a graphene varactor. The graphene varactor can include a graphene layer and a self-assembled monolayer disposed on an outer surface of the graphene layer through π-π stacking interactions. The self-assembled monolayer can provide a Langmuir theta value of at least 0.9. The self-assembled monolayer can include polycyclic aromatic hydrocarbons, tetraphenylporphyrins or derivatives thereof, metallotetraphenylporphyrins, or aromatic cyclodextrins. Other embodiments are also included herein.