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pp. 2789-2798
S&M4469 Research paper https://doi.org/10.18494/SAM5913 Published: May 29, 2026 Supercritical CO2-assisted Deposition of TiO2 Nanoparticles for High-performance Nonenzymatic Glucose Sensors [PDF] Yu-Chun Huang and Cong-Yi Sun (Received August 21, 2025; Accepted May 14, 2026) Keywords: nonenzymatic glucose sensor, rutile/anatase TiO2, supercritical CO2 deposition, hydrothermal synthesis, electrochemical detection
In this study, a nonenzymatic glucose sensor was fabricated through a three-step process on fluorine-doped tin oxide (FTO) conductive glass. First, rutile-phase TiO2 nanorods were synthesized via a hydrothermal method to form a stable sensing structure. Subsequently, anatase-phase TiO2 nanoparticles were deposited using a supercritical carbon dioxide (scCO2)-assisted static deposition technique, which increased surface roughness and the number of electroactive sites. Finally, Au nanoparticles were sputtered onto the TiO2 heterostructure to enhance conductivity and electron transfer efficiency. In this paper, we present a feasible approach for developing high-performance nonenzymatic glucose sensors with potential applications in wearable healthcare devices, point-of-care diagnostics, and biochemical sensing systems.
Corresponding author: Yu-Chun Huang![]() ![]() This work is licensed under a Creative Commons Attribution 4.0 International License. Cite this article Yu-Chun Huang and Cong-Yi Sun, Supercritical CO2-assisted Deposition of TiO2 Nanoparticles for High-performance Nonenzymatic Glucose Sensors, Sens. Mater., Vol. 38, No. 5, 2026, p. 2789-2798. |