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

US11867596B2 · kind B2 · utility

Assignee

• 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: Mar 29, 2022
• Grant date: Jan 9, 2024
• Expiry date: Mar 29, 2042

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 π-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.