ArticleBiomedical optics express2019
Dual-band refractometric terahertz biosensing with intense wave-matter-overlap microfluidic channel.
Article in Biomedical optics express, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.
What it found
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Who cites it
8 citing papers in PubMed.
- Tunable terahertz biosensing and shielding using a graphene-enhanced dielectric resonator absorber.Scientific reports · 2025Article
- Label-free sensing technology of two Staphylococcus species based on a terahertz metasurface.Biomedical optics express · 2025Article
- A novel sandwich-type terahertz metasurface sensor integrated ultrathin microfluidic channel for direct detection of aqueous solutions.Nanophotonics (Berlin, Germany) · 2025Article
- Overview of Optical Biosensors for Early Cancer Detection: Fundamentals, Applications and Future Perspectives.Biology · 2023Review
- Bipolar charge trapping for absorption enhancement in a graphene-based ultrathin dual-band terahertz biosensor.Nanoscale advances · 2021Article
- All-metal terahertz metamaterial biosensor for protein detection.Nanoscale research letters · 2021Article
- Terahertz Metamaterial with Multiple Resonances for Biosensing Application.Nanomaterials (Basel, Switzerland) · 2020Article
- Terahertz polarization sensing based on metasurface microsensor display anti-proliferation of tumor cells with aspirin.Biomedical optics express · 2020Article
Corrections and comments
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Authors and funding
15 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
We theoretically and experimentally demonstrate a label-free terahertz biosensor with ultrahigh sensitivity and distinctive discretion. By constructing a metal-air-metal (MAM) metamaterial perfect absorber (MPA) with a metallic paired-ring resonator array, a hollow microfluidic channel, and a backed reflector, a novel dual-band absorptive sensing platform is proposed in the THz range. The near field coupling by dipole-induced trapped modes and the magnetic momentum caused a vertical to transverse power flux that dramatically enhanced the electromagnetic field on top of the metasurface and in the microfluidic channel, respectively. Both the resonant modes exhibit perfect absorption and produce ultrahigh normalized sensitivities of 0.47/RIU (refractive index unit, RIU) and 0.51/RIU at 0.76 THz and 1.28 THz, respectively. Compared with conventional microfluidic sensors, the salient advantages of our design are the perfect spatial overlap for light-matter interaction and polarization insensitivity. Characterized by THz time domain spectroscopic absorption quantification measurements with different concentrations of bovine serum albumin (BSA), the proposed sensor exhibits promising applications in microfluidic biosensing.
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.