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2 photon microscopy before (a) and after (b) silicon array insertion in visual cortex of Thy1-GCaMP mice. Capillaries with interrupted flow post-implantation are indicated by cyan ^. Stagnant red blood cells are observed as dark spots within the capillary. Vasculature labeled with intraperitoneal injection of SR101, depth of imaging: between 0–40 µm. Scale bars = 100 µm.
