Projects per year
Abstract
We prepare disposable single-walled carbon nanotube network electrodes for the detection of the potent opioid fentanyl, currently a leading cause for opioid overdose deaths in the USA. We show repeatable dry transfer of single-walled carbon nanotube (SWCNT) networks to produce robust electrodes. This process directly produces highly conductive SWCNT electrodes without the need for any further modifications required for conventional carbon electrodes. The realized electrode showed low background currents combined with spontaneous enrichment of fentanyl, resulting in a high signal-to-noise ratio. With this electrode, a detection limit of 11 nM and a linear range of 0.01-1 μM were found for fentanyl. In addition, selectivity is demonstrated in the presence of several common interferents.
| Original language | English |
|---|---|
| Pages (from-to) | 1203-1212 |
| Number of pages | 10 |
| Journal | ACS Applied Nano Materials |
| Volume | 3 |
| Issue number | 2 |
| DOIs | |
| Publication status | Published - 28 Feb 2020 |
| MoE publication type | A1 Journal article-refereed |
Funding
This work was supported by the Business Finland (FEDOC 211637 and FEPOD 2117731 projects). The authors acknowledge the provision of facilities by Aalto University Bioeconomy and Dr. Leena-Sisko Johansson for help with XPS analysis. The provisions of facilities of OtaNano are also acknowledged. Use of the Stanford Synchrotron Radiation Lightsource, SLAC National Accelerator Laboratory, is supported by the U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences, under Contract DE-AC02-76SF00515.
Keywords
- DPV
- electrochemical sensor
- fentanyl citrate
- SWCNT
- voltammetry
Fingerprint
Dive into the research topics of 'Single-Walled Carbon Nanotube Network Electrodes for the Detection of Fentanyl Citrate'. Together they form a unique fingerprint.Projects
- 2 Finished
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FEPOD-TUTLI, T40218
Laurila, T. (Principal investigator), Leppänen, E. (Project Member) & Verrinder, E. (Project Member)
01/06/2019 → 30/09/2021
Project: Business Finland: New business from research ideas (TUTLI)
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FEDOC: Fast electrochemical detection of opioids in blood sample by carbon nano hybrid electrodes
Koskinen, J. (Principal investigator), Etula, J. (Project Member), Lindqvist, T. (Project Member), Johansson, L.-S. (Project Member), Wester, N. (Project Member) & Durairaj, V. (Project Member)
01/06/2016 → 31/12/2018
Project: Business Finland: Other research funding
Equipment
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Bioeconomy Research Infrastructure
Seppälä, J. (Manager)
School of Chemical EngineeringFacility/equipment: Facility
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OtaNano - Nanomicroscopy Center
Seitsonen, J. (Manager) & Rissanen, A. (Other)
OtaNanoFacility/equipment: Facility