ArticleNanophotonics (Berlin, Germany)2022
Ultrasensitive, light-induced reversible multidimensional biosensing using THz metasurfaces hybridized with patterned graphene and perovskite.
Article in Nanophotonics (Berlin, Germany), 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.
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7 citing papers in PubMed.
- Design of a polarization-insensitive terahertz metamaterial biosensor for glioma tissue identification.Biomedical optics express · 2025Article
- Recent progress in terahertz sensors based on graphene metamaterials.Discover nano · 2025Review
- A terahertz graphene-metamaterial sensor for highly sensitive detection of trace pesticide metaldehyde.PloS one · 2025Article
- Ultra-sensitive, graphene metasurface sensor integrated with the nonradiative anapole mode for detecting and differentiating two preservatives.Nanophotonics (Berlin, Germany) · 2024Article
- Terahertz Biosensor Engineering Based on Quasi-BIC Metasurface with Ultrasensitive Detection.Nanomaterials (Basel, Switzerland) · 2024Article
- Terahertz phase shift sensing and identification of a chiral amino acid based on a protein-modified metasurface through the isoelectric point and peptide bonding.Biomedical optics express · 2023Article
- Tunable resonance of a graphene-perovskite terahertz metasurface.Nanoscale advances · 2023Article
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15 authors.
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Abstract
Biosensors based on terahertz (THz) metasurfaces have recently attracted widespread attention. However, few have been reported so far because it is a challenge to achieve ultrasensitive multidimensional detection in the THz spectrum. Here, we propose a novel THz biosensor that consists of a metasurfaces and a metal oxide semiconductor-like structure (MOSLS), which is based on patterned graphene-polyimide-perovskite. We varied the photoconductivity of the MOSLS via the electrostatic doping effect. The biosensor could detect whey protein down to a concentration limit of 6.25 ng/mL. Significant responses in frequency, phase, and transmission amplitude were all detected for different protein concentrations. The transmission value difference, frequency shift, and phase difference increased with the concentration of whey protein, clearly demonstrating multidimensional biosensing. Moreover, by applying lasers with different wavelengths, we have realized reversible biosensing in THz region for the first time. These results are very promising for applications of THz metasurfaces in the field of biosensing.
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