Ceylon Graphite Outperforms Other Graphite Materials in a Groundbreaking Graphene-based Sensing Platform for Chemical Analysis Study Conducted by Imperial College London

Vancouver, BC, July 19, 2023 (GLOBE NEWSWIRE) -- Ceylon Graphite Corp. ("Ceylon") (TSX-V: CYL) (OTC: CYLYF) (FSE: CCY) is pleased to announce that Ceylon graphite achieved new concentration and conductivity records when studied in the manufacture of an adaptable sensing platform for chemical sensing. The research, published in the Royal Society of Chemistry’s “Nanoscale” Journal, was conducted by partners at the Molecular Sciences Research Hub at Imperial College London and specifically incorporated Ceylon’s vein graphite to produce a low-surface-tension sprayable graphene ink that was key to the sensor’s functionality.

A summary of the test results, completed in January 2023¹ is highlighted below:

• Ceylon graphite was used to create high concentration, graphene/polyvinylpyrrolidone inks, with record-breaking concentrations as high 3.2 mg mL⁻¹.
• Raman spectroscopy was used to show high-quality graphene flakes produced via liquid phase exfoliation.
• The Ceylon-based graphene device was successfully used to detect for pH within the range of pH 3 – 11.
• These results demonstrate the potential of high-quality graphite to empower the next generation of nanomaterial-based diagnostics for biological and chemical sensing.

“Our findings highlight the promising pH sensing capabilities of the Ceylon graphene-based devices for pH sensing, which can be deployed for a variety of medical and environmental applications,” said Dr. Felice Torrisi, corresponding author of this work and principal investigator. “In particular, the sprayed “Electrolyte-gated Graphene Field-effect transistor” (EG-GFET) fabricated using Ceylon graphite outperforms any other EG-GFET prepared by any other technique, demonstrating the unique characteristics of Ceylon graphite for high quality graphene inks with electronic grade suitable for large area printed electronics, integrated circuits and sensing. We see this as a breakthrough with Ceylon vein graphite aiming to uncap the potential of graphene inks for printed electronics by demonstrating high-performance devices suitable for applications ranging from flexible and wearable electronics to sensing and automotive.”