Journal article 962 views 224 downloads
Printable and flexible graphene pH sensors utilising thin film melanin for physiological applications
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S P Whelan,
Bernard Mostert ,
J V Paulin,
Muhammad Ali,
Ehsaneh Daghigh Ahmadi,
C F O Graeff,
Owen Guy ,
David Gethin
2D Materials, Volume: 7, Issue: 2, Start page: 024008
Swansea University Authors:
Zari Tehrani , Bernard Mostert , Muhammad Ali, Ehsaneh Daghigh Ahmadi, Owen Guy , David Gethin
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DOI (Published version): 10.1088/2053-1583/ab72d5
Abstract
The application of highly sensitive pH sensors manufactured in volume at low cost has great commercial interest due to an extensive array of potential applications. Such areas include industrial processing, biotechnology and medical diagnostics particularly in the development of point of care (POC)...
| Published in: | 2D Materials |
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| ISSN: | 2053-1583 |
| Published: |
IOP Publishing
2020
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| Online Access: |
Check full text
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| URI: | https://cronfa.swan.ac.uk/Record/cronfa53387 |
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| Abstract: |
The application of highly sensitive pH sensors manufactured in volume at low cost has great commercial interest due to an extensive array of potential applications. Such areas include industrial processing, biotechnology and medical diagnostics particularly in the development of point of care (POC) devices. A novel printable electrochemical pH sensor based on graphene and pigment melanin (PGM), was designed and produced by using a screen printing process that enables up scaling for potential commercial application. We demonstrate a highly sensitive pH sensor (62 mV pH−1 ± 7) over a pH range from 5 to 8, with high stability and superior performance when compared with a number of existing devices and making it suitable for physiological applications. |
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| Keywords: |
graphene, pH Sensor, melanin, screen print, blood plasma, low cost manufacturing |
| College: |
Faculty of Science and Engineering |
| Issue: |
2 |
| Start Page: |
024008 |