Single-layered molybdenum disulfide based field effect transistor for bacteria detection.
The atomically thin layer of molybdenum disulfide (MoS2), analogue of graphene, has stimulated exploding interests due to its direct-gap properties and potential applications in electronics. In this report, we have investigated three preparation processes towards single-layered MoS2 and developed a...
Saved in:
| Main Author: | |
|---|---|
| Other Authors: | |
| Format: | Final Year Project |
| Language: | English |
| Published: |
2013
|
| Subjects: | |
| Online Access: | http://hdl.handle.net/10356/52714 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| Institution: | Nanyang Technological University |
| Language: | English |
| Summary: | The atomically thin layer of molybdenum disulfide (MoS2), analogue of graphene, has stimulated exploding interests due to its direct-gap properties and potential applications in electronics. In this report, we have investigated three preparation processes towards single-layered MoS2 and developed a label-free, selective and sensitive FET based sensor for bacteria detection by using CVD grown MoS2 thin film as its sensing element. Low detection limit of 100cfu/ml was achieved. In addition, functionalization of anti-E.coli antibody on MoS2 monolayer ensured specificity of the sensor. To our best knowledge, this is the first single-layered MoS2 based electrical sensor for detection of bacteria. It provided a high throughput platform for screening of antibacterial drugs and functional studies. |
|---|