ABSTRACT
A ferrocene-based capsule is spontaneously and quantitatively formed in water by the assembly of bent amphiphiles carrying two ferrocene units. The disassembly and assembly of the new organometallic capsule, with a well-defined and highly condensed ferrocene core, are demonstrated by chemical redox stimuli in a fully reversible fashion under ambient conditions. In contrast to previously reported multiferrocene assemblies, only the present capsule efficiently encapsulates typical organic/inorganic dyes as well as electron-accepting molecules in water. As a result, unusual host-guest charge-transfer (CT) interactions, displaying relatively wide absorption bands in the visible to near-infrared region (λ=650-1350â nm), are observed upon the encapsulation of acceptors (i.e., chloranil and TCNQ). The resultant encapsulation-induced CT interactions can be released by a redox stimulus through the disassembly of the capsule.
ABSTRACT
We report the case of a 52-year-old woman with May-Hegglin Anomaly (MHA) and a platelet count of 1.9 x 10(4) x mm(-3). She was scheduled to undergo abdominal total hysterectomy and adnexectomy with uterine fibroids. Anesthesia was maintained by inhalation of sevoflurane (1.5%), continuous intravenous infusion of remifentanil (0.2-0.3 µg x kg(-1) x min(-1)), intermittent intravenous infusion of fentanyl (35 µg), and the transversus abdominis plane block with 20 ml of 0.375% ropivacaine. The amount of bleeding during surgery was 150 ml and her postoperative course was uneventful. MHA is a rare hematological disorder inherited as an autosomal dominant trait that is characterized by thrombocytopenia, giant platelets, and inclusion bodies in the granulocytes. A decrease in platelet count is detectable with a blood test But function of platelets is generally normal. Anesthesiologist should understand the characteristics of MHA, and administer anesthetics without giving platelets.