Fitxers
Tipus de document
ArticleVersió
Versió publicadaData de publicació
Llicència de publicació
Si us plau utilitzeu sempre aquest identificador per citar o enllaçar aquest document: https://hdl.handle.net/2445/152689
Low-cost impedance measurements for lab-on-a-chip architectures: Towards potentiostat miniaturization
Títol de la revista
Director/Tutor
ISSN de la revista
Títol del volum
Recurs relacionat
Resum
The development of miniaturized potentiostats capable of measuring in a wide range of conditions and with full characteristics (e.g., wide bandwidth and capacitive/inductive contribution to sensor's impedance) is still an unresolved challenge in bioelectronics. We present a simple analogue design coupled to a digital filter based on a lock-in amplifier as an alternative to complex architectures reported hitherto. A low-cost, miniaturized and fully integrated acquisition electronic system was developed, tested for a fully integrated three-lead electrochemical biosensor and benchmarked against a commercial potentiostat. The portable potentiostat was coupled to an array of miniaturized gold working electrodes to perform complex impedance analyses for tumor necrosis factor α (TNF-α) cytokine detection. This wearable potentiostat is very promising for the development of low-cost point-of-care (POC) with low power consumption.
Matèries (anglès)
Citació
Citació
PRUNA MORALES, Raquel, et al. Low-cost impedance measurements for lab-on-a-chip architectures: Towards potentiostat miniaturization. MDPI Proceedings. 2017. Vol. 1, núm. 4, pàgs. 604. ISSN 2504-3900. [consulta: 7 de maig de 2026]. Disponible a: https://hdl.handle.net/2445/152689