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A Hydrogen-Bonded,Hexagonally Networked,Layered Framework with Large Aperture Designed by Structural Synchronization of a Macrocycle and Supramolecular Synthon

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Precision Chemistry 2024年第5期2卷 221-228页

作者： Hiroki Yoshimura Ryusei Oketani Miki Naruoka norimitsu tohnai Ichiro Hisaki Division of Chemistry Graduate School of Engineering ScienceOsaka UniversityToyonakaOsaka 560-8531Japan Department of Applied Chemistry Graduate School of EngineeringOsaka UniversitySuitaOsaka 565-0871Japan

To develop porous organic frameworks,precise control of the stacking manner of two-dimensional porous motifs and structural characterization of the resultant framework are *** these points of view,porous molecular crystals formed through reversible intermolecular hydrogen bonds,such as;hydrogen-bonded organic frameworks(HOFs),can provide deep insight because of their high crystallinity,affording single-crystalline X-ray diffraction *** this study,we demonstrate that the stacking manner of hydrogen-bonded hexagonal network(HexNet)sheets can be controlled by synchronizing a homological triangular macrocyclic tecton and a hydrogen-bonded cyclic supramolecular synthon called the phenylene triangle.A structure of the resultant HOF was crystallographically characterized and revealed to have a large channel aperture of 2.4 *** HOF also shows thermal stability up to 290°C,which is higher than that of the conventional HexNet frameworks.

关键词： hydrogen-bonded organicframeworks hexagonalnetwork macrocycle carboxylicacid porosity

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Regulation of Anthracene Arrangement and Photoluminescence Properties by Using Organic Salts

Regulation of Anthracene Arrangement and Photoluminescence P...

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亚洲晶体学联合大会

作者： Tomoaki Hinoue norimitsu tohnai Ichiro Hisaki Mikiji Miyata Osaka University 2-1YamadaokaSuita-CityOsaka565-0871 Japan

＜正＞Solid-state photoluminescent properties depend strongly on molecular arrangement as well as molecular structure of the constituent molecules. However, it is difficult to regulate the arrangements and therefore t...

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Antimicrobial Effect of Silver Ionised Water Prepared with the Sintering Coating Method—Effect on Acid Production in Plaque

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Health 2021年第3期13卷 299-305页

作者： Shiho Morishita Shigeru Watanabe Kei Miyazawa Iwai tohnai Department of Oral Health Sciences Meikai University School of Health Sciences Akemi 1 Urayasu Chiba Japan

Purpose: To investigate the effect of silver ionised water on acid production in plaque. Methods: After injecting 0.5 mL of silver ionised water (concentration: 5 ppm) produced with the sintering coating method in the sensor part of the pH metre, plaque collected from the oral cavity by one platinum loop was mixed in. Immediately after that, a 5% sucrose solution (1 g/20 mL) was added and the pH was continuously measured for 30 minutes at 1-minute intervals (A). Similarly, silver ionised water was mixed with 5% sucrose solution in the same way as in (A) at 3 (B), 5 (C), 10 (D) and 15 minutes (E) after plaque contamination. The pH was measured at 1-minute intervals. The pH of the purified water containing no silver ionised water mixed with plaque and sugar solution at the same time was measured and used as a control. Each experiment was conducted three times, and the pH measured every minute was compared as a percentage of the pH at the beginning of the measurement (100%). Results: Analysis of variance of the repeated measurements to determine the effect of silver ionised water on the decrease in pH revealed a main effect of silver ionised water and an interaction between time and group [F(1.302,20.826) = 39.145, p Conclusion: Silver ionised water was found to inhibit the acid production in plaque.

关键词： Silver Ionised Water Antimicrobial Effect Plaque Stephan Curve pH

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Chemotherapy using new superselective intra-arterial infusion for advanced oral cancer

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中国口腔颌面外科杂志 2008年第B5期6卷 42-42页

作者： Iwai tohnai Kenji Mitsudo Takefumi Fukui Toshinori Iwai Kei Watanuki Yoshiro Matsui Department of Oral and MaxiUofacial Surgery Yokohama City University Graduate School of Medicine. Yokohama 236-0004 Japan

Purpose: We developed a new method of superselective intra-arterial infusion via the superficial temporal artery (HFT method: Hattori, Fuwa and tohnai reported) and preoperatively performed daily concurrent radiotherapy and chemotherapy with docetaxel (DOC) and cisplatin (CDDP) using this method for 46 patients with stage Ⅲ, Ⅳ oral cancer.

关键词：化学疗法口腔癌治疗方法临床分析

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