Terahertz Detection of Deoxyribonucleic Bases, Viruses and Nano Particles
At a Glance
Section titled āAt a Glanceā| Metadata | Details |
|---|---|
| Publication Date | 2022-10-30 |
| Journal | 2022 IEEE Sensors |
| Authors | Massood TabibāAzar |
| Institutions | University of Utah |
| Citations | 1 |
Abstract
Section titled āAbstractāA metamaterial composed of diamond-shaped (70 Ī¼m X 35 Ī¼m) copper patches was designed and used to detect nanoparticles with 0.75-1.1 terahertz transmission spectroscopy. Deoxyribonucleic acid (DNA) bases adenine, thymine, cytosine, and guanine were detected and identified. Cytosine showed 1.7 dB higher absorption around 0.975 THz than the other bases. SARS-CoV-2 infected saliva showed different spectrum and -10 dB higher absorption than uninfected saliva over 0.75-1.1 THz. Other nanoparticles consisting of 100-500 nm antimony, carbon black, zeolite aluminosilicate molecular sieves), Terfenol-D (Tb <inf xmlns:mml=āhttp://www.w3.org/1998/Math/MathMLā xmlns:xlink=āhttp://www.w3.org/1999/xlinkā>0.3</inf> Dy <inf xmlns:mml=āhttp://www.w3.org/1998/Math/MathMLā xmlns:xlink=āhttp://www.w3.org/1999/xlinkā>0.7</inf> Fe <inf xmlns:mml=āhttp://www.w3.org/1998/Math/MathMLā xmlns:xlink=āhttp://www.w3.org/1999/xlinkā>2</inf> ), Cu2s,Ag2S, dust collected from bench tops, 10-100 Ī¼m size diamond particles, red polystyrene beads, iron particles and graphene sheets were also tested. Sensor sensitivity for uninfected saliva was 0.3 dB/ng and for infected saliva was 0.8 dB/ng. The metamaterial surface studied here enables detection of airborne particles larger than 10 Ī¼m in diameter.
Tech Support
Section titled āTech SupportāOriginal Source
Section titled āOriginal SourceāReferences
Section titled āReferencesā- 2036 - Electronic Spiking Protein-Based COVID Sensors
- 2022 - Detection and discrimination of SARS-CoV-2 spike protein-derived peptides using THz metamaterials [Crossref]