ArticleNature photonics2025
Plasmonic biosensor enabled by resonant quantum tunnelling.
Article in Nature photonics, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.
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Who cites it
5 citing papers in PubMed.
- Hexagonal Au Nanostructure SERS Metasurface for AI-Driven Detection of Pesticide Residues in Real Food Samples.ACS applied nano materials · 2026Article
- Nano calligraphy via optical electro-aligning manipulation.Microsystems & nanoengineering · 2026Article
- Extreme sensitivity label-free biosensing platform based on topologically disruptive phase nano-optics.Microsystems & nanoengineering · 2026Article
- Sensitivity enhancement of surface plasmon resonance biosensors based on versatile nanostructures: principle, fabrication, and illustrative applications.Microsystems & nanoengineering · 2026Review
- A dynamically tunable terahertz human serum albumin biosensor based on Dirac semimetal nanozyme.Frontiers in bioengineering and biotechnology · 2025Article
Corrections and comments
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Authors and funding
13 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Metasurfaces provide an ideal platform for optical sensing because they produce strong light-field confinement and enhancement over extended regions that allow us to identify deep-subwavelength layers of organic and inorganic molecules. However, the requirement of using external light sources involves bulky equipment that hinders point-of-care applications. Here we introduce a plasmonic sensor with an embedded source of light provided by quantum tunnel junctions. An optically resonant, doubly periodic nanowire metasurface serves as a top contact for the junction and provides extremely uniform emission over large areas, amplified by plasmonic nanoantenna modes that simultaneously enhance the spectral and refractive index sensitivity. As a proof of concept, we demonstrate spatially resolved refractometric sensing of nanometre-thick polymer and biomolecule coatings. Our results open exciting prospects based on a disruptive platform for integrated electro-optical biosensors.
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Registered trials
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