FLUID-FET: An Ionic Switch for Biological and Chemical Species
IR@CEERI: CSIR-Central Electronics Engineering Research Institute, Pilani
View Archive Info| Field | Value | |
| Title |
FLUID-FET: An Ionic Switch for Biological and Chemical Species
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| Creator |
Maurya, RK
Agarwal, A |
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| Subject |
Sensors and Nanotechnology
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| Description |
Fluidic field effect transistor (Fluid-FET) is referring to an embedded micro/nanofluidic channel with an electrically controllable gate electrode; providing the way to modulate the surface charge property within the channel and leads to control the ionic movement in nanochannels. This work reports an ionic switch named as Fluid-FET, similar to the conventional Field Effect Transistor (FET) with the aim to control the delivery of biological and chemical species in Lab-on-a-chip integrated systems. This device gives much better rectifying degree (better diodic behavior) at very low voltages (<2V) due to very low surface charges without any chemical modification using single gate electrode.
The precise movement of the ions (i.e. K+, Ca2+ etc.) in a preferred direction is demonstrated by asymmetrically positioned external gate electrode. Fluid-FET is realized using standard silicon process techniques with poly-silicon as sacrificial material, allowing thermally grown silicon oxide as capping layer with low surface charges.Various micro-fluidic devices for drug delivery/ discovery applications may need such controlled delivery of ions or drugs.
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| Date |
2015
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| Type |
Conference or Workshop Item
PeerReviewed |
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| Format |
application/pdf
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| Identifier |
http://ceeri.csircentral.net/262/1/12_2015%285%29.pdf
Maurya, RK and Agarwal, A (2015) FLUID-FET: An Ionic Switch for Biological and Chemical Species. In: Indo-UK Work Shop on Micro-Nano Fluidics for Health and Diagnostics (FluidicsHD-2015), CSIR-CEERI, Pilani, August 27-28, 2015, CSIR-CEERI. (Submitted) |
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| Relation |
http://ceeri.csircentral.net/262/
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