Recent developments in plasmonic nanostructures for metal enhanced fluorescence-based biosensing

Mohsin Ali Badshah, Na Yoon Koh, Abdul Wasy Zia, Naseem Abbas, Zahra Zahra, Muhammad Wajid Saleem

Research output: Contribution to journalReview articlepeer-review

59 Scopus citations


Metal-enhanced fluorescence (MEF) is a unique phenomenon of surface plasmons, where light interacts with the metallic nanostructures and produces electromagnetic fields to enhance the sensitivity of fluorescence-based detection. In particular, this enhancement in sensing capacity is of importance to many research areas, including medical diagnostics, forensic science, and biotechnology. The article covers the basic mechanism of MEF and recent developments in plasmonic nanostructures fabrication for efficient fluorescence signal enhancement that are critically reviewed. The implications of current fluorescence-based technologies for biosensors are summarized, which are in practice to detect different analytes relevant to food control, medical diagnostics, and forensic science. Furthermore, characteristics of existing fabrication methods have been compared on the basis of their resolution, design flexibility, and throughput. The future projections emphasize exploring the potential of non-conventional materials and hybrid fabrication techniques to further enhance the sensitivity of MEF-based biosensors.

Original languageEnglish
Article number1749
Pages (from-to)1-22
Number of pages22
Issue number9
StatePublished - Sep 2020


  • Biosensors
  • Localized surface plasmon resonance
  • Low-dimensional materials
  • Metal-enhanced fluorescence
  • Metallic nanostructures
  • Nanofabrication
  • Plasmonic nanostructures


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