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Thermal Runaway of Lithium-Ion Batteries Employing Flame-Retardant Fluorinated Electrolytes

Energy & Environmental Materials 2023年第1期6卷 333-339页

作者： Junxian Hou Li Wang Xuning Feng Junpei Terada Languang Lu shigeaki Yamazaki Anyu Su Yoshiko Kuwajima Yongjiang Chen Tomoya Hidaka Xiangming He Hewu Wang Minggao Ouyang State Key Laboratory of Automotive Safety and Energy Tsinghua UniversityBeijing 100084China Institute of Nuclear and New Energy Technology Tsinghua UniversityBeijing 100084China Daikin Industries Ltd.1-1Nishi-HitotsuyaSettsu Osaka 566-8585Japan Sichuan New Energy Vehicle Innovation Center Yibin 644002China

Fluorinated electrolytes possess good antioxidant capacity that provides high compatibility to high-voltage cathode and flame retardance;thus,they are considered as a promising solution for advanced lithium-ion batteries carrying both high-energy density and high ***,the fluorinated electrolytes are widely used to form stable electrolyte interphase,due to their chemical reactivity with lithiated graphite or ***,the influence of this reactivity on the thermal safety of batteries is seldom ***,we demonstrate that the flame-retardant fluorinated electrolytes help to reduce the flammability,while the lithium-ion batteries with flame-retardant fluorinated electrolytes still undergo thermal runaway and disclose their different thermal runaway pathway from that of battery with conventional *** reduction in fluorinated components(e.g.,LiPF 6 and fluoroethylene carbonate(FEC))by fully lithiated graphite accounts for a significant heat release during battery thermal *** 13%of total heat is sufficient to trigger the chain reactions during battery thermal *** study deepens the understanding of the thermal runaway mechanism of lithium-ion batteries employing flame-retardant fluorinated electrolytes,providing guidance on the concept of electrolyte design for safer lithium-ion batteries.

关键词： battery safety flame retardance fluorinated electrolytes lithium-ion battery thermal runaway

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Primary signet-ring cell carcinoma of the colon at early stage: A case report and a review of the literature

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World Journal of Gastroenterology 2006年第21期12卷 3446-3449页

作者： Kuang-I Fu Yasushi Sano Shigeharu Kato Hiroki Saito Atsushi Ochiai Takahiro Fujimori Yutaka Saito Takahisa Matsuda Takahiro Fujii shigeaki Yoshida Division of Gastrointestinal Oncology and Digestive Endoscopy National Cancer Center Hospital East KashiwaChiba 277-8577Japan Department of Surgical and Molecular PathologyDokkyo University School of Medicine880 KitakobaysashiMibuShimotugaTochigi 321-0293Japan Division of Gastrointestinal Oncology and Digestive Endoscopy National Cancer Center Hospital East KashiwaChiba 277-8577Japan Division of Pathology National Cancer Center East Research Institute Chiba 277-8577Japan Department of Surgical and Molecular Pathology Dokkyo University School of Medicine 880 KitakobaysashiMibuShimotugaTochigi 321-0293Japan Division of Endoscopy National Cancer Center Hospital TsukijiTokyo 104-0045Japan

A 67-year-old man, who had undergone surgery to resect multiple gastric cancers 4 years ago, visited our hospital for surveillance colonoscopy. Colonoscopy revealed a discolored, 7-mm in diameter, flat-elevated lesion with central depression in the transverse colon near the splenic flexure. Although the findings of endoscopy and barium enema were suggestive of submucosal invasion, the patient chose to undergo endoscopic mucosal resection. Pathological examination of the resected specimen revealed signet-ring cell carcinoma and a positive surgical margin. A second operation was performed, and no residual tumor or metastasis to lymph nodes was found in the resected specimens. Primary colorectal cancers composed of signet-ring cell carcinoma detected and treated at an early stage are extremely rare. We present a case and review the literature.

关键词： Signet-ring cell carcinoma Early colorectal cancer Endoscopic mucosal resection

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Uveitis and Intraocular inflammation in Asia

Uveitis and Intraocular inflammation in Asia

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第三届全球华人眼科学术大会暨中华医学会第十一届全国眼科学术大会

作者： shigeaki Ohno Department of Ophthalmology and Visual Sciences Hokkaido University Graduate School of Medicine SapporoHokkaidoJapan

Uveitis and intraocular inflammation (Ⅱ) sometimes run a chronic course with recurrence. Visual prognosis is poor if correct diagnosis and proper management are not done. It is well known that the etiology and cause differ from one population to another. Therefore, it is important for us Asian to know what are the major uveitis entities in Asian populations.

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Pneumoscrotum: A rare manifestation of perforation associated with therapeutic colonoscopy

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World Journal of Gastroenterology 2005年第32期11卷 5061-5063页

作者： Kuang-I Fu Yasushi Sano Shigeharu Kato Takahiro Fujii Masanori Sugito Masato Ono Norio Saito Kiyotaka Kawashima shigeaki Yoshida Takahiro Fujimori Division of Gastrointestinal Oncology and Digestive EndoscopyNational Cancer Center Hospital East KashiwaChiba 277-8577Japan Division of SurgeryNational Cancer Center Hospital East KashiwaChiba 277-8577Japan Department of Surgical and Molecular PathologyDokkyo University School of Medicine 880 KitakobaysashiMibuShimotugaTochigi 321-0293Japan

Pneumoscrotum is uncommon and also rarely reported as a complication associated with colonic perforation. A case of colonic perforation in delayed fashion associated with EMR, revealed by pneumoscrotum, is reported and the associated literatures are reviewed. A 52-year-old male received piecemeal EMR for a laterally spreading tumor 35 mm in size in our hospital. He complained of enlargement of the scrotum and revisited our hospital the day alter the procedure. A diagnosis of pneumoscrotum was made, and as most such cases have been reported to be associated with pneumoperitoneum, colonic perforation was suspected. Free air but no fluid collection was found by abdominal computed tomography, and delayed colonic perforation was diagnosed. However, as there were no clinical signs of peritoneal irritation, conservative treatment was administered and the patient recovered uneventfully. Pneumoscrotum could be a sign of colonic perforation alter EMR, and treatment should be carefully chosen.

关键词： Pneumoscrotum Colonic perforation Endoscopic mucosal resection

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New treatment of uveitis and intraocular inflammation

New treatment of uveitis and intraocular inflammation

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中华医学会第十二届全国眼科学术大会

作者： shigeaki OHNO Hokkaido University Graduate School of Medicine

Exact etiology and disease mechanisms of intraocular in- flammation such as uveitis or uveoretinitis are still obscure in most cases,and the visual prognosis of the patients is general- ly *** mainstay of the treatmen...

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Epigentic regulators for nuclear receptors

Epigentic regulators for nuclear receptors

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21st IUBMB and 12th FAOBMB International Congress of Biochemistry and Molecular Biology

作者： shigeaki Kato Institute of Molecular and Cellular Biosciences The University of Tokyo Japan ERA TO Japan Science and Technology Agency Japan

＜正＞Transcriptional controls by nuclear receptors have been recently shown to require chromatin reorganization and histone *** modifying enzymes other than histone acetylases/deacetylases have been identified as transcriptional co-regulators as multi-subunit complexes. Using a granulocytic differentiation system of HL60 cells induced by retinoic acid（RA） signaling through nuclear RA receptors（RARs）,a histone lysine

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Changes in growth factor and cytokine expression in biliary obstructed rat liver and their relationship with delayed liver regeneration after partial hepatectomy

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World Journal of Gastroenterology 2006年第13期12卷 2053-2059页

作者： Hironobu Makino Hiroaki Shimizu Hiroshi Ito Fumio Kimura Satoshi Ambiru Akira Togawa Masayuki Ohtsuka Hiroyuki Yoshidome Atsushi Kato Hideyuki Yoshitomi shigeaki Sawada Masaru Miyazaki Department of General Surgery Graduate School of Medicine Chiba UniversityChibaJapan

AIM： To study the effects of obstructive jaundice on liver regeneration after partial hepatectomy. METHODS： Hepatocyte growth factor （HGF）, its receptor, c-Met, vascular endothelial growth factor （VEGF） and transforming growth factor-β1 （TGF-β1） mRNA expression in both liver tissue and isolated liver cells were investigated after biliary obstruction （BO） by quantitative reverse-transcription polymerase chain reaction （RT-PCR） using a LightCycler. Immunohistochemical staining for desmin and e-smooth muscle actin （α-SNA） was also studied. Regenerating liver weight and proliferating cell nuclear antigen （PCNA） labeling index, and growth factor expression were then evaluated after 70% hepatectomy with concomitant internal bUiary drainage in BO rats or sham-operated rats. RESULTS： Hepatic TGF-β1 mRNA levels increased significantly 14 days after BO, and further increased with duration of cholestasis. Meanwhile, HGF and VEGF tended to increase, but was not significant. In cell isolates, TGF-β1 mRNA was found mainly in the hepatic stellate cell （HSC） fraction. Immunohistochemical studies revealed an increased number of HSCs （desmin-positive cells） and activated HSCs （α-SMA-positive cells） in portal areas after BO. In a hepatectomy model, liver regeneration was delayed in BO rats, as compared to sham-operated rats. TGF-β1 mRNA was significantly up-regulated up to 48 h after hepatectomy, and the earlier HGF mRNA peak was lost in BO rats. CONCLUSION： BO induces HSCs proliferation and activation, leading to up-regulation of TGF-β1 mRNA and suppression of HGF mRNA in livers. These altered expression patterns may be strongly involved in delayed liver regeneration after hepatectomy with obstructive jaundice.

关键词： Biliary obstruction Liver regeneration Hepatocyte growth factor Transforming growth factor-β Hepatic stellate cells Hepatectomy

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Depressed-type (0-IIc) colorectal neoplasm in patients with family history of first-degree relatives with colorectal cancer:A cross-sectional study

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World Journal of Gastroenterology 2006年第19期12卷 3082-3087页

作者： Junko Iwasaki Yasushi Sano Kuang-I Fu Ai Machida Tatsuya Okuno Hikaru Kuwamura Takayuki Yoshino Kiyomi Mera Shigeharu Kato Atsushi Ohtsu shigeaki Yoshida Takahiro Fujii Division of Digestive Endoscopy and Gastrointestinal Oncology National Cancer Center Hospital East ChibaJapan TF Clinic Tokyo Japan

AIM： TO investigate the correlation of depressed-type （0-IIc） colorectal neoplasm and family history of firstdegree relatives （FDR） with colorectal cancer （CRC）. METHODS： This cross-sectional study was conducted from June 2000 to October 2002 at National Cancer Center Hospital East. Eligible patients undergoing initial total colonoscopy were surveyed regarding family history of CRC among FDR by a questionnaire prior to colonoscopic examinations. All endoscopic findings during colonoscopy were recorded and the macroscopic classification of the early stage neoplasm/cancer was classified into two types （0-IIc vs non 0-IIc）. Odds ratios （OR） and 95% confidence intervals （CI） were calculated by univariate and multivariate logistic regression to estimate the association between macroscopic features and clinicopathological data including gender, age, and family history of FDR with CRC. RESULTS： The OR of an association between family history of FDR with CRC and overall early stage neoplasm adjusted by gender and age was 1.85 （95% CI： 1.31-2.61, P = 0.0004）, that for non 0-IIc neoplasm was 1.71 （95% CI： 1.22-2.41, P = 0.0017） and for 0-IIc colorectal neoplasm was 2.78 （95% CI： 1.49-5.16, P = 0.0031）. CONCLUSION： Our study shows a significant association between a family history of FDR with CRC and 0-IIc colorectal neoplasm. When patients with a family history of FDR with CRC undergo colonoscopy, colonoscopists should check carefully for not only polypoid, but also depressed-type （0-IIc） lesions.

关键词： Depressed-type Family history Colorecta cancer First-degree relative Colonoscopy

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Structural insights into the assembly of the 30S ribosomal subunit in vivo： functional role of S5 and location of the 17S rRNA precursor sequence

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Protein & Cell 2014年第5期5卷 394-407页

作者： Zhixiu Yang Qiang Guo Simon Goto Yuling Chen Ningning Li Kaige Yan Yixiao Zhang Akira muto Haiteng Deng Hyouta Himeno Jianlin Lei Ning Gao Ministry of Education Key Laboratory of Protein Sciences Center for Structural Biology School of Life Sciences Tsinghua University Beijing 100084 China Department of-Biochemistry and Molecular Biology Faculty of Agriculture and Life Science Hirosaki University Hirosaki 036-8561 Japan

The in vivo assembly of ribosomal subunits is a highly complex process, with a tight coordination between protein assembly and rRNA maturation events, such as folding and processing of rRNA precursors, as well as modifications of selected bases. In the cell, a large number of factors are required to ensure the efficiency and fidelity of subunit production. Here we characterize the immature 30S subunits accumulated in a factor-null Escherichia coil strain （ArsgAArbfA）. The immature 30S subunits isolated with varying salt concentrations in the buffer system show interesting differences on both protein composition and structure. Specifically, inter- mediates derived under the two contrasting salt condi- tions （high and low） likely reflect two distinctive assembly stages, the relatively early and late stages of the 3＇ domain assembly, respectively. Detailed structural analysis demonstrates a mechanistic coupling between the maturation of the 5＇ end of the 17S rRNA and the assembly of the 30S head domain, and attributes a unique role of S5 in coordinating these two events. Furthermore, our structural results likely reveal thelocation of the unprocessed terminal sequences of the 17S rRNA, and suggest that the maturation events of the 17S rRNA could be employed as quality control mech- anisms on subunit production and protein translation.

关键词： RsgA RbfA ribosome assembly cryo-EM,quantitative mass spectrometry

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Actin filaments localization on the sorting endosomes

Actin filaments localization on the sorting endosomes

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Third Congress of the Asian-Pacific Organization for Cell Biology

作者： Hiroyuki Nakagawa shigeaki Miyamoto Dept.of Biochem. Eng. & Sci. Kyushu Inst. of Tech.IizukaFukuoka 820Japan

By immunofluorescence microscopic observation, monoclonal and polyclonal antibodies against a synthetic actin

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