Chemical sensors with non-covalent, electrostatic surface modification of graphene

US11293914B2 · 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
• Justin Theodore Nelson · Minneapolis, US

Key dates

• Filing date: Apr 24, 2019
• Grant date: Apr 5, 2022
• Expiry date: Oct 17, 2039

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02E10/549
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

Embodiments include chemical sensors, devices and systems including the same, and related methods. In an embodiment, a medical device is provided. The medical device can include a graphene varactor, including a graphene layer and a self-assembled monolayer disposed on an outer surface of the graphene layer through electrostatic interactions between a partial positive charge on hydrogen atoms of one or more hydrocarbons of the self-assembled monolayer and a it-electron system of graphene. The self-assembled monolayer can include one or more substituted porphyrins or substituted metalloporphyrins, or derivatives thereof. Other embodiments are also included herein.