Experimental Apparatus and procedureVoltammetric measurements at an NB/W interface were performed with a four-electrode potentiostat (Hokuto, HA1010mM1A) controlled by a personal computer. The electrolytic cell, shown in Fig. 1(a), was machined from poly(chlorotrifluoroethylene) resin blocks, and was placed in a shield case in order to avoid electric noise. 3-or proton, absorption bands of C60 • -in a visible/near infrared absorption spectrum disappeared. This disappearance supports the ET across the NB/W interface. This finding is significant as both an example of ET at a liquid/liquid interface including photochemical reactions and the photochemistry of C60.

傍矢状静脈洞や大脳鎌に発生する大型髄膜腫により上矢状静脈洞 (superior sagittal sinus：SSS) が狭窄・閉塞するこ とがある． このような症例では板間静脈が正常脳灌流の側 副血行路となっている場合がある 1) 3) 5) 8) 10) 12) -14) 16) -19) 21) 24) ． 側副血行路として発達した板間静脈を損傷した際には大 出血や静脈性梗塞，空気塞栓症を起こす可能性が知られて おり，可能なかぎり損傷を避ける努力が必要とされてい る 6) 9) 11) 15) 18) 22