pH measurements of FET-based (bio)chemical sensors using portable measurement system
| Autor: | Klaus-Juergen Wolter, Gianaurelio Cuniberti, F. Zörgiebel, Karlheinz Bock, Tetiana Voitsekhivska, Eike Suthau |
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| Rok vydání: | 2016 |
| Předmět: |
Silicon
Materials science Transistors Electronic Nanotubes Carbon System of measurement Interface (computing) Microfluidics chemistry.chemical_element Water Biosensing Techniques Ph measurement Hydrogen-Ion Concentration Microfluidic Analytical Techniques Gate voltage Multiplexing Data acquisition chemistry Hardware_INTEGRATEDCIRCUITS Electronic engineering |
| Zdroj: | EMBC |
| ISSN: | 2694-0604 |
| Popis: | In this study we demonstrate the sensing capabilities of a portable multiplex measurement system for FET-based (bio)chemical sensors with an integrated microfluidic interface. We therefore conducted pH measurements with Silicon Nanoribbon FET-based Sensors using different measurement procedures that are suitable for various applications. We have shown multiplexed measurements in aqueous medium for three different modes that are mutually specialized in fast data acquisition (constant drain current), calibration-less sensing (constant gate voltage) and in providing full information content (sweeping mode). Our system therefore allows surface charge sensing for a wide range of applications and is easily adaptable for multiplexed sensing with novel FET-based (bio)chemical sensors. |
| Databáze: | OpenAIRE |
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