Bergmann Stephan, Mönkemöller Viola, Huser Thomas
Biomolecular Photonics Group, Department of Physics, University of Bielefeld, 33615 Bielefeld, Germany.
Phys Chem Chem Phys. 2017 Feb 8;19(6):4887-4890. doi: 10.1039/c6cp05108a.
Certain fluorophores, in particular those that can undergo photoinduced radical pair reactions are known to exhibit a magnetic field dependent fluorescence summarized in the term magnetic field effect (MFE). We tried to reproduce experiments that reported magnetic field enhanced fluorescence for commonly used organic dyes with a high quantum yield suitable for single molecule localization microscopy. We find that the enhanced fluorescence is due to fluorescence reflected by the magnet's surface rather than MFE.
某些荧光团,特别是那些能够发生光诱导自由基对反应的荧光团,已知会表现出磁场依赖性荧光,这一现象被概括为磁场效应(MFE)。我们试图重现一些实验,这些实验报道了对于具有适合单分子定位显微镜的高量子产率的常用有机染料,磁场增强了其荧光。我们发现,荧光增强是由于磁体表面反射的荧光,而非磁场效应。