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您的检索式：作者名="Samuel Tozer"
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| 1 | Dual-color deep-tissue three-photon microscopy with a multiband infrared laser显示文摘Multiphoton microscopy combined with genetically encoded fluorescent indicators is a central tool in biology.Threephoton(3P)microscopy with excitation in the short-wavelength infrared(SWIR)water transparency bands at 1.3 and 1.7μm opens up new opportunities for deep-tissue imaging.However,novel strategies are needed to enable in-depth multicolor fluorescence imaging and fully develop such an imaging approach.Here,we report on a novel multiband SWIR source that simultaneously emits ultrashort pulses at 1.3 and 1.7μm that has characteristics optimized for 3P microscopy:sub-70 fs duration,1.25 MHz repetition rate,and μJ-range pulse energy.In turn,we achieve simultaneous 3P excitation of green fluorescent protein(GFP)and red fluorescent proteins(mRFP,mCherry,tdTomato)along with third-harmonic generation.We demonstrate in-depth dual-color 3P imaging in a fixed mouse brain,chick embryo spinal cord,and live adult zebrafish brain,with an improved signal-to-background ratio compared to multicolor twophoton imaging.This development opens the way towards multiparametric imaging deep within scattering tissues. | Khmaies Guesmi Lamiae Abdeladim Samuel Tozer Pierre Mahou Takuma Kumamoto Karolis Jurkus Philippe Rigaud Karine Loulier Nicolas Dray Patrick Georges Marc Hanna Jean Livet Willy Supatto Emmanuel Beaurepaire Frédéric Druon | 2018 | Light(Science & Applications)2018，7，1： | 3 |
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