Comment on "Magnetic-field-enabled resolution enhancement in super-resolution imaging" by M. Zhang et al., Phys. Chem. Chem. Phys., 2015, 17, 6722–6727. Issue 6 (24th January 2017)

• Record Type: Journal Article
• Authors: Bergmann, Stephan; Mönkemöller, Viola; Huser, Thomas
• Is Part Of: Physical chemistry chemical physics. Volume 19:Issue 6(2017)
• Page Start: 4887
• Page End: 4890
• Publication Date: 2017-01-24
• Subjects: Chemistry, Physical and theoretical -- Periodicals; 541.3
• DOI: 10.1039/c6cp05108a
• Languages: English
• ISSNs: 1463-9076

Abstract

Abstract : Spectral fluorimetry demonstrates that common organic fluorophores such as Alexa 647 exhibit no magnetic field enhanced fluorescence in the absence/presence of a strong magnet. Abstract : 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.