Fritjof Helmchen

Resting Microglial Cells Are Highly Dynamic Surveillants of Brain Parenchyma in Vivo

Axel Nimmerjahn, Frank Kirchhoff, Fritjof Helmchen · Science · 2005 · 5.8K citations

Medicine, Neurobiology, Neuroscience +15

Transgenic Mice for Intersectional Targeting of Neural Sensors and Effectors with High Specificity and Performance

Linda Madisen, Aleena R. Garner, Daisuke Shimaoka et al. · Neuron · 2015 · 1.2K citations · Full text

Life Sciences, Neurobiology, Neuroscience +11

Fluctuations and stimulus-induced changes in blood flow observed in individual capillaries in layers 2 through 4 of rat neocortex

David Kleinfeld, Partha P. Mitra, Fritjof Helmchen et al. · Proceedings of the National Academy of Sciences · 1998 · 837 citations · Full text

Life Sciences, Neurobiology, Neuroscience +17

Sulforhodamine 101 as a specific marker of astroglia in the neocortex in vivo

Axel Nimmerjahn, Frank Kirchhoff, Jason N. D. Kerr et al. · Nature Methods · 2004 · 786 citations

Medicine, Neurobiology, Neuroscience +12

A Miniature Head-Mounted Two-Photon Microscope

Fritjof Helmchen, Michale S. Fee, David W. Tank et al. · Neuron · 2001 · 622 citations · Full text

Natural Sciences, Physics, Microfabrication +11