Graphene barristor-based sensors for low-concentration hexanal detection
Introducing an advanced graphene barristor sensor with modulated Schottky barrier for highly sensitive, low-concentration Hexanal detection, offering significant improvements over traditional FETs and PCR-based methods.
Overview
The graphene barristor sensor represents a cutting-edge innovation for point-of-care diagnostics, specifically designed for the detection of Hexanal at extremely low concentrations. Utilizing a Schottky barrier formed between graphene and silicon, this sensor offers an exponentially modulated current response, significantly enhancing sensitivity compared to traditional transistor-based sensors. This technology promises to surpass existing rapid testing methods like lateral flow and PCR by providing rapid, robust, and highly sensitive measurements.
Technical specifications
- Graphene barristor technology: Exploits the Schottky barrier effect between a monolayer graphene and a semiconductor, offering high on/off current ratio modulation.
- Ultra-sensitive detection: Capable of detecting minute concentrations of Hexanal due to the exponential modulation of current with charge on graphene.
- Antibody coating: Utilizes a specific antibody coating on the graphene surface to accurately detect Hexanal molecules.
- Collaborative development: Developed in collaboration with key industry and research partners from the UK and South Korea, leveraging significant patent portfolios and expertise in CVD graphene and biosensor platforms.
Technology readiness level
The graphene barristor sensor is currently at Technology Readiness Level 4. The technology has been demonstrated in a laboratory environment and is undergoing further validation in collaboration with Versarien, ABC, and KRIBB, with a project timeline of 12 months divided into focused work packages.
About Versarien
Versarien plc is an intellectual property-led advanced engineering materials group that develops and manufactures innovative solutions based on proprietary technology. The group operates through multiple subsidiaries that specialize in the production and application of advanced materials, including graphene and tungsten carbide. By leveraging scientific research and its internal manufacturing capabilities, Versarien aims to transform intellectual property into commercially viable engineering products. The company focuses on expanding its material portfolio, establishing licensing arrangements, and acquiring companies that align with its goal of commercializing advanced materials technology across diverse industrial sectors.
These material solutions are designed to address specific technological and engineering challenges faced by modern manufacturers, offering potential improvements in areas such as energy storage and industrial application performance. Through its subsidiaries, Versarien provides industry sectors with graphene-enhanced products and other engineered nanomaterials. The group maintains a focus on verification and quality standards, having been the first company to achieve the Verified Graphene Producer certification. By providing working capital, plant, and operational expertise, the company works to integrate these advanced materials into existing industrial supply chains, solving material-related problems for its customers and partners.
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