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Aggregate 2021年第6期2卷 99-108页

作者： Tomohiko Nishiuchi Hikaru Sotome Risa Fukuuchi kenji kamada Hiroshi Miyasaka Takashi Kubo Department of Chemistry Graduate School of ScienceOsaka UniversityToyonakaOsakaJapan Innovative Catalysis Science Division Institute for Open and Transdisciplinary Research Initiatives(ICS-OTRI)Osaka UniversitySuitaOsakaJapan Division of Frontier Materials Science and Center for Advanced Interdisciplinary Research Graduate School of Engineering ScienceOsaka UniversityToyonakaOsakaJapan Nanomaterial Research Institute(NMRI) National Institute of Advanced Industrial Science and Technology(AIST)IkedaOsakaJapan Department of Chemistry Graduate School of Science and TechnologyKwansei Gakuin UniversitySandaHyogoJapan

Since the discovery of the triphenylmethyl(trityl)cation 120 years ago,a variety of aromatic cations having various colors and luminescence properties have been rigorously ***,differently substituted trityl cations have been synthesized,and their optical properties have been ***,the optical properties of the parent,non-substituted and highly reactive trityl cation,which was observed to be very weakly luminescent,have not been subjected to detailed *** the effort described herein,we explored the optical nature of non-substituted trityl hexafluorophosphate(PF_(6))in the crystalline *** PF_(6) was found to exist as two crystal polymorphs including a yellow(Y)and an orange(O)***,we observed that these crystalline forms display crystalline-state emission with different *** results of X-ray crystallographic analysis showed that the two polymorphs have totally different molecular packing ***,an investigation of their optical properties revealed that the O-crystal undergoes a distinct color change to yellow upon cooling as a consequence of a change in the nature of the charge transfer interaction between the cation and PF6 anion,and that both the Y-and O-crystal exhibit phosphorescence.

关键词： aggregation induced emission carbocation phosphorescence crystal phase transition thermochromism

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Aggregation-enhanced direct S_(0)-T_(n) transitions and room-temperature phosphorescence in gold(I)-complex single crystals

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Aggregate 2022年第1期3卷 159-167页

作者： Akihiro Ando Kazuhisa Ozaki Urara Shiina Eikichi Nagao Kyohei Hisano kenji kamada Osamu Tsutsumi Department of Applied Chemistry Ritsumeikan UniversityKusatsuJapan Nanomaterials Research Institute(NMRI) National Institute of Advanced Industrial Science and Technology(AIST)IkedaJapan

The design of efficient aggregation-induced emission materials requires an improved understanding of photophysical processes in aggregated ***,the photophysical behavior of an Au(I)complex(R6)that exhibits intense roomtemperature phosphorescence(RTP)in crystals is *** addition,the photophysical processes related to RTP are discussed based on the structure of the molecular aggregates and the primary structure of the *** extremely efficient S_(0)-T_(n) direct transition is found to occur in the R6 ***,intermolecular Au-Au interactions and the internal/external heavy-atom effects of Au atoms are demonstrated to enhance the electronic transitions involving intersystem crossing,namely,direct S_(0)-T_(n) excitation,radiative T_(1)-S_(0) transition(phosphorescence),and S_(1)-T_(n) intersystem *** of the dense molecular packing,both Au-Au interactions and heavy-atom effects play important roles in the *** a result,R6 shows more efficient RTP in crystals than in *** insights into the mechanism of highly efficient RTP in Au(I)-complex crystals are expected to advance the development of new luminogens for a variety of sensing and imaging applications.

关键词： aggregation-induced emission aurophilic interaction gold(I)complex phosphorescence spin-forbidden transition

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Foreign body granulomas mimic peritoneal dissemination caused by incarcerated femoral hernia perforation:A case report

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World Journal of Clinical Oncology 2021年第11期12卷 1083-1088页

作者： Shinpei Ogino Tatsuya Matsumoto Yosuke kamada Noriaki Koizumi Hiroshi Fujiki kenji Nakamura Takeshi Yamano Chouhei Sakakura Department of Surgery Akashi City HospitalAkashi 673-8501HyogoJapan Department of Pathology Akashi City HospitalAkashi 673-8501HyogoJapan

BACKGROUND Foreign body granuloma(FBG)is a well-known type of granulomatous formation,and intraabdominal FBG(IFBG)is primarily caused by surgical *** IFBGs caused by gastrointestinal perforation is an extremely rare and interesting clinicopathological condition that resembles peritoneal ***,we present a case of IFBGs mimicking peritoneal dissemination caused by bowel perforation and describe the value of intraoperative pathological examinations for rapid IFBG *** SUMMARY An 86-year-old woman with an incarcerated femoral hernia was admitted to the hospital and underwent *** the operation,the incarcerated ileum was perforated during repair due to hemorrhage necrosis,and a small volume of enteric fluid leaked from the *** incarcerated ileum was resected,and the femoral hernia was repaired without *** months later,a second operation was performed for an umbilical incisional *** the second operation,multiple small,white nodules were observed throughout the abdominal cavity,resembling peritoneal *** results of peritoneal washing cytology in Douglas’pouch and the examination of frozen nodule sections were compatible with IFBG diagnosis,and incisional hernia repair was *** IFBGs can mimic *** pathological examinations and operation history are valuable for the rapid diagnosis to avoid excessive treatments.

关键词： Foreign body granuloma Peritoneal dissemination Peritoneal seeding Perforation Operation Case report

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