Enhanced modulation of magnetic field on surface plasmon coupled emission (SPCE) by magnetic nanoparticles |
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| Authors: | Kaixin Xie Shuohui Cao Yanyun Zhai Min Chen Xiaohui Pan Hitoshi Watarai Yaoqun Li |
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| Affiliation: | Department of Chemistry and the MOE Key Laboratory of Spectrochemical Analysis & Instrumentation, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China; Department of Chemistry, Taiyuan Normal University, Taiyuan 030031, China; Institute for NanoScience Design, Osaka University, Osaka 560-8531, Japan |
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| Abstract: | The obvious enhancement effect of magnetic nanoparticles (MNPs) introduced in Cr/Co/Cr/Au substrate on the pulsed magnetic field-modulated surface plasmon coupled emission (SPCE) was investigated, and the observed enhancement factor was 4 comparing with the magnetic field modulated SPCE without MNPs. This is the new observation for the magnetic field modulated SPCE, and this method was designed as a biosensor, which to our knowledge, is the first application of magnetic field-modulated SPCE in biosensing and detection field. This strategy is a universal approach to increase the fluorescence signal and helps to build the new SPCE based stimulus-response system. |
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| Keywords: | Surface plasmon coupled emission (SPCE) Magnetic field modulation Magnetic nanoparticle Fluorescence enhancement Biosensor |
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