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Title |
A Short Review on Micro Fluidic Sensors Based on Recent Meta-Surfaces Structures |
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Author |
Nadeem Naeem, Sajida Parveen, Farhana Umer, Jherna Devi, Insaf Ali Siming |
| Citation |
Vol. 18 No. 12 pp. 255-258 |
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Abstract |
Some recent structures in the field of meta-surface based dielectric sensors is presented in this paper. Sensors based on meta-surface structures have shown their effectiveness in microfluidic sensing of various biochemicals samples. Microchannels that are formed to sense the samples require only few milli grams of substance. Such sensors can easily detect the presence of bio samples due to their higher sensitivity caused by surface electric field distribution which results in higher quality factors. Meta-surface microfluidic sensors are reusable, smaller in size, easy to implement and highly sensitive as compared to conventional sensors. The existing sensor technology lacks in accuracy and requires measuring equipment that limits their portability. In contrast to conventional sensors meta-surface sensors are fabricated on portable sensing plate forms that enable them to be used as single lab on chip sensing devices to be used in different environments. This article provides a quick review about latest microfluidic sensors performances tested on chemicals with changed dilutions and the performance is characterized using quality factors that indicate their sensitivity. Meta-surface sensors are highly suitable for noninvasive sensing of biological samples. They exhibit low quantum energy when are designed to operate from microwave to terahertz frequency (0.1-1.5 THz) due to the fact that terahertz has non-ionizing effects. The existing designs can further be improved by using terahertz technology. |
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Keywords |
Meta-surface, Dielectric material, Micro channel, Split ring resonator, Lab-on-chip. |
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