The effect of ionic strength on the sensing performance of liquid-gated biosensors
Research output: Chapters, Conference Papers, Creative and Literary Works › RGC 32 - Refereed conference paper (with host publication) › peer-review
Author(s)
Detail(s)
| Original language | English |
|---|---|
| Title of host publication | 2017 IEEE 17th International Conference on Nanotechnology (IEEE-NANO) |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. |
| Pages | 242-245 |
| ISBN (electronic) | 9781509030286 |
| ISBN (print) | 9781509030293 |
| Publication status | Published - Jul 2017 |
Publication series
| Name | Proceedings of the IEEE Conference on Nanotechnology |
|---|---|
| Volume | 2017 |
| ISSN (electronic) | 1944-9380 |
Conference
| Title | 17th IEEE International Conference on Nanotechnology (IEEE NANO 2017) |
|---|---|
| Location | Pittsburgh Marriott City Center |
| Place | United States |
| City | Pittsburgh |
| Period | 25 - 28 July 2017 |
Link(s)
Abstract
We experimentally demonstrated that the effect of ionic strength of electrolyte on the electrical signal of liquid-gated graphene field-effect transistors (G-FETs) in sensing of E. coli. Phosphate buffered saline (PBS) with different concentrations, which affects the ionic strength, was employed as the electrolyte for biosensor operation. The results showed that larger response (4.16%) was obtained by using the PBS with smaller ionic strength (1.627 mM). When the ionic strength is too low (0.1627 mM), it causes negative effect on the antibody-E. coli interaction, resulting in a smaller response (2.98%). This study provides a simple method to optimize the operation conditions of graphene biosensors, which enables the optimization of the electrical response.
Citation Format(s)
The effect of ionic strength on the sensing performance of liquid-gated biosensors. / Wu, Guangfu; Tang, Xin; Lin, Zihong et al.
2017 IEEE 17th International Conference on Nanotechnology (IEEE-NANO). Institute of Electrical and Electronics Engineers, Inc., 2017. p. 242-245 8117313 (Proceedings of the IEEE Conference on Nanotechnology; Vol. 2017).
2017 IEEE 17th International Conference on Nanotechnology (IEEE-NANO). Institute of Electrical and Electronics Engineers, Inc., 2017. p. 242-245 8117313 (Proceedings of the IEEE Conference on Nanotechnology; Vol. 2017).
Research output: Chapters, Conference Papers, Creative and Literary Works › RGC 32 - Refereed conference paper (with host publication) › peer-review
