Chemical Sensors Based on Covalent Organic Frameworks.

Area of Science:

• Materials Science
• Nanotechnology
• Chemistry

Background:

• Covalent organic frameworks (COFs) are crystalline porous polymers built from light elements via strong covalent bonds.
• COFs possess unique, designable structures and excellent material properties, driving significant research interest.
• Their applications span gas storage, pollutant removal, catalysis, adsorption, and optoelectronics, with growing research in sensing.

Purpose of the Study:

• To provide a comprehensive review of covalent organic framework (COF)-based sensors.
• To elucidate the fundamental principles underlying COF sensor operation.
• To present recent advancements and applications of COF sensors in various detection fields.

Main Methods:

• Literature review focusing on COF-based sensor research.
• Analysis of fundamental principles governing COF sensor mechanisms.
• Categorization and summary of COF sensor applications and performance.

Main Results:

• COF-based sensors demonstrate significant potential across diverse sensing domains.
• Key application areas include sensing of gases, ions, organic compounds, and biomolecules.
• Recent advancements showcase the versatility and efficacy of COFs in sensor technology.

Conclusions:

• COF-based sensors are a rapidly developing field with broad applicability.
• Future research should address challenges to further enhance sensor performance and expand applications.
• COFs hold considerable promise for next-generation sensing technologies.