Metasurfaces-Driven Hyperspectral Imaging via Multiplexed Plasmonic Resonance Energy Transfer

Inki Kim, Hongyoon Kim, Seungyeon Han, Joohoon Kim, Yangkyu Kim, Seonghyeon Eom, Aleksandr Barulin, Inhee Choi, Junsuk Rho, Luke P. Lee

Research output: Contribution to journalArticlepeer-review

16 Scopus citations

Abstract

Obtaining single–molecular–level fingerprints of biomolecules and electron–transfer dynamic imaging in living cells are critically demanded in postgenomic life sciences and medicine. However, the possible solution called plasmonic resonance energy transfer (PRET) spectroscopy remains challenging due to the fixed scattering spectrum of a plasmonic nanoparticle and limited multiplexing. Here, multiplexed metasurfaces-driven PRET hyperspectral imaging, to probe biological light–matter interactions, is reported. Pixelated metasurfaces with engineered scattering spectra are first designed over the entire visible range by the precision nanoengineering of gap plasmon and grating effects of metasurface clusters. Pixelated metasurfaces are created and their full dark-field coloration is optically characterized with visible color palettes and high-resolution color printings of the art pieces. Furthermore, three different biomolecules (i.e., chlorophyll a, chlorophyll b, and cytochrome c) are applied on metasurfaces for color palettes to obtain selective molecular fingerprint imaging due to the unique biological light–matter interactions with application-specific biomedical metasurfaces. This metasurface-driven PRET hyperspectral imaging will open up a new path for multiplexed real-time molecular sensing and imaging methods.

Original languageEnglish
Article number2300229
JournalAdvanced Materials
Volume35
Issue number32
DOIs
StatePublished - 10 Aug 2023

Keywords

  • biological electron transfer
  • biosensors
  • label-free detection
  • metasurfaces
  • multiplexed nanospectroscopy
  • plasmonic resonance energy transfer
  • scattering engineering

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