Figure 7.

(A) Photograph showing the arrangement of spinach leaf on the Bio-LSI chip (a), real-time imaging of O₂ reduction current without illumination (b) and with illumination at 30 klx (c). DCMU (5 μM) was added after 13 min from the start of illumination (30 klx) and subsequent images were obtained at 0 min (d), 3 min (e), 6 min (f), 9 min (g), 12 min (h) and 15 min (i). (B) The change in reduction current on an electrode indicated by a red open square in Fig. 7A(c). The arrow indicates the time of turning on the light (at 10 min) and subsequent addition of DCMU (at 23 min).