Nature Methods online: January 13, 2013 An optimized fluorescent probe for visualizing glutamate neurotransmission Jonathan S. Marvin, Bart G. Borghuis, Lin Tian, Joseph Cichon, Mark T. Harnett, Jasper Akerboom, Andrew Gordus, Sabine L. Renninger, Tsai-Wen Chen, Cornelia I. Bargmann, Michael B. O...