Nanoarchitectured CuTe Thin Films: A Next-Generation Platform for Ultra-Sensitive Biosensing

Efficient and cost-effective biosensing platforms are difficult to maintain. Recently, researchers have begun to explore the use of materials that are alternative to traditional noble metals. On this note, the present work focuses on the biosensing capabilities of nanoarchitectured copper telluride (CuTe) semiconductor thin films. The vast surface area established within the mesoporous framework facilitates effective current transfer in traditional electrolytes, rendering them highly suitable for applications in biological sensing by demonstrating their ability in glucose sensors, showing an exceptionally low detection threshold (57.38 nM) and a notable sensitivity of 682.4 μA·cm^-2·μM^-1, which is approximately three times higher than that of mesoporous gold (mAu) films. Our findings indicate that nanoarchitectured CuTe semiconductor thin films possess substantial potential for integration into advanced biosensing technologies, enabling possibilities for the enhanced and ultrasensitive detection of biological molecules.