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紫色半导体发光二极管激发下Sm^(3+)掺杂的铋碲酸盐玻璃的光谱能量分布与量子产率计算

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光谱学与光谱分析 2007年第12期27卷 2385-2388页

作者：王雪影林海李长敏杨殿来 setsuhisa tanabe 大连轻工业学院化工与材料学院辽宁大连116034 京都大学人间环境学研究科

采用积分球光谱测试系统,在紫色半导体发光二极管激发下,对Sm3+掺杂的低声子能量、高折射率铋碲酸盐玻璃的荧光光谱进行测试。荧光测试系统由直径为25.4 cm的积分球,配以CCD探测器组成,通过标准卤素灯定标,辅助卤素灯校正积分球内环境变... 详细信息

采用积分球光谱测试系统,在紫色半导体发光二极管激发下,对Sm3+掺杂的低声子能量、高折射率铋碲酸盐玻璃的荧光光谱进行测试。荧光测试系统由直径为25.4 cm的积分球,配以CCD探测器组成,通过标准卤素灯定标,辅助卤素灯校正积分球内环境变化,解析出样品的绝对光谱能量分布,并进一步计算出光通量分布、光量子数分布,求得辐射通量、光通量、荧光量子产率等荧光特征参数。测试与计算结果表明,对应可见区Sm3+四个特征发射峰,总辐射通量为55μW,总荧光量子产率为4.07%;可见区内,样品受激后光通量为0.02 lm。文章首次将积分球法应用于多通道跃迁稀土离子荧光性能的测试,实现了荧光特性准确评价为目的的绝对光谱能量分布测试,为发光与激光材料光学性能的精确测量与表征提供了一种新方法。

关键词： Sm^3+ 铋碲酸盐玻璃光谱能量分布光通量量子产率

稀土钐离子可见荧光量子产率的精确测试与计算

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光学学报 2008年第2期28卷 311-315页

作者：王雪影李长敏于晓波杨殿来林海 setsuhisa tanabe 大连工业大学化工与材料学院辽宁大连116034 日本京都大学大学院日本京都606-8501

采用积分球配以CCD光谱测试系统,在蓝色半导体发光二极管激发下,对Sm3+掺杂的低声子能量、高折射率铋碲酸盐玻璃的荧光光谱进行测试。实现了荧光发射特性绝对评价为目的的绝对光谱功率分布测定,为发光与激光材料荧光发射特性的精确测量... 详细信息

采用积分球配以CCD光谱测试系统,在蓝色半导体发光二极管激发下,对Sm3+掺杂的低声子能量、高折射率铋碲酸盐玻璃的荧光光谱进行测试。实现了荧光发射特性绝对评价为目的的绝对光谱功率分布测定,为发光与激光材料荧光发射特性的精确测量与表征提供了一种准确方法。荧光测试系统由直径为25.4cm的积分球配以CCD探测器组成,通过标准卤素灯定标,辅助卤素灯校正积分球内环境变化,解析出样品的绝对光谱功率分布,并进一步计算出光量子数分布,求得荧光量子产率等荧光特征参量。测试与计算结果表明,对应可见区Sm3+四个特征发射峰,总荧光量子产率为7.55%。

关键词：光学材料量子产率积分球测试 Sm^3+离子光谱功率分布

铈掺杂钆镓铝石榴石相玻璃陶瓷的光学及光谱参数

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光谱学与光谱分析 2010年第1期30卷 128-132页

作者：龚桦赵昕于晓波 setsuhisa tanabe 林海大连工业大学化工与材料学院辽宁大连116034 大连工业大学信息科学与工程学院辽宁大连116034 日本京都大学大学院人间环境学研究科

根据X射线衍射图谱对铈掺杂的钆镓铝石榴石相玻璃陶瓷的晶体结构进行分析,采用直径10英寸积分球结合CCD(charge coupled device)探测器系统,对蓝色半导体发光二极管激发下铈掺杂钆镓铝石榴石相玻璃陶瓷的荧光光谱进行测试,解析出样品发... 详细信息

根据X射线衍射图谱对铈掺杂的钆镓铝石榴石相玻璃陶瓷的晶体结构进行分析,采用直径10英寸积分球结合CCD(charge coupled device)探测器系统,对蓝色半导体发光二极管激发下铈掺杂钆镓铝石榴石相玻璃陶瓷的荧光光谱进行测试,解析出样品发光的绝对光谱功率分布,推导出光量子数分布,求得荧光量子产率和组合白光的色坐标及其相关色温。结果表明,所调查的铈掺杂钆镓铝石榴石相玻璃陶瓷在蓝光LED激发下的荧光量子产率为29.2%,所获得组合白光的色坐标x=0.319,y=0.349,相关色温为6 086K。尽管该混晶陶瓷的荧光量子产率稍小于铈掺杂YAG玻璃陶瓷,但其与蓝光LED组合后发光的色温也明显低于后者,从而为舒适型LED照明玻璃陶瓷的进一步优化提供了新思路。

关键词：玻璃陶瓷晶相光谱功率分布量子产率相关色温

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Mn4+激活氧氟化物红光荧光粉的研究进展

无机材料学报 2020年第8期35卷 847-856页

作者：姬海鹏张宗涛 XU Jian tanabe setsuhisa 陈德良解荣军郑州大学材料科学与工程学院郑州450001 Graduate School of Human and Environmental Studies Kyoto UniversityKyoto 606-8501Japan 厦门大学材料学院厦门361000

稳定可靠的高光子能量发光(620~650nm)红光荧光粉,对于构建低色温、高显指荧光粉转换型白光发光二极管(WLED)至关重要。Mn4+激活红光荧光粉是当前WLED用荧光粉研究热点之一。本文介绍了Mn4+离子的能级跃迁与光致发光特性,详细叙述了目... 详细信息

稳定可靠的高光子能量发光(620~650nm)红光荧光粉,对于构建低色温、高显指荧光粉转换型白光发光二极管(WLED)至关重要。Mn4+激活红光荧光粉是当前WLED用荧光粉研究热点之一。本文介绍了Mn4+离子的能级跃迁与光致发光特性,详细叙述了目前所报道的七种Mn4+激活含d0/d10/s0离子氧氟化物系列红色荧光粉(如Na2WO2F4:Mn4+等)的制备方法、晶体结构及其发光特性。目前Mn4+在氧氟化物结构中得到强R线(零声子线)发光的情况少,微观配位体仍是[MnF6]或[MnO6],其化学稳定性和量子效率研究也很缺乏。最后对Mn4+激活氧氟化物红光荧光粉的研究进行了展望。

关键词：白光LED 荧光粉 Mn4+ 氧氟化物综述

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用于旋翼飞机开发研究的多分野解析框架

Transactions of Nanjing University of Aeronautics and Astronautics 2024年第1期41卷 43-52页

作者： tanabe Yasutada SUGAWARA Hideaki KIMURA Keita 日本宇宙航空研究开发机构航空技术部日本东京181-0015

介绍了日本宇宙航空研究开发机构研发的用于旋翼飞机的多分野解析框架。Heli Design是在各种旋翼飞机初期概念设计时使用的软件;rFlight可以提供在各种飞行条件下的平衡解析和线性化飞行模型;rBET/RMT是基于叶片要素理论的低保真度空力... 详细信息

介绍了日本宇宙航空研究开发机构研发的用于旋翼飞机的多分野解析框架。Heli Design是在各种旋翼飞机初期概念设计时使用的软件;rFlight可以提供在各种飞行条件下的平衡解析和线性化飞行模型;rBET/RMT是基于叶片要素理论的低保真度空力解析软件,和rMode提供的结构模型结合,可以推测旋转翼的弹性变形和各种飞行条件下的空力负载;rFlow3D是基于CFD计算的高保真度数值模拟软件;rGrid系列自动网格构造工具为其提供简单的网格生成;基于rFlow3D的计算结果,r Noise可以预测在任何观测点的噪声。这些软件已经广泛地被应用在各种新型旋翼飞机的开发研究中,其计算精度也已被各种实验结果所应证。

关键词：旋翼飞机多分野解析高保真模拟设计工具

Glutathione-depleted cyclodextrin pseudo-polyrotaxane nanoparticles for anti-inflammatory oxaliplatin(Ⅳ) prodrug delivery and enhanced colorectal cancer therapy

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Chinese Chemical Letters 2024年第4期35卷 280-286页

作者： Wenjia Wang Xingyue He Xiaojie Wang Tiantian Zhao Osamu Muraoka Genzoh tanabe Weijia Xie Tianjiao Zhou Lei Xing Qingri Jin Hulin Jiang State Key Laboratory of Natural Medicines China Pharmaceutical UniversityNanjing 210009China Faculty of Pharmacy Kinki University HigashiosakaOsaka 577-8502Japan State Key Laboratory of Natural Medicines(SKLNM)and Department of Medicinal Chemistry School of PharmacyChina Pharmaceutical UniversityNanjing 210009China School of Pharmacy Hangzhou Medical CollegeHangzhou 311399China College of Pharmacy Yanbian UniversityYanji 133002China

Oxaliplatin(Oxa) is the first-line chemotherapeutic drug for the treatment of colorectal cancer(CRC). However, long-term Oxa chemotherapy can induce inflammation and increase the levels of cyclooxygenase-2(COX-2) and prostaglandin E2(PGE2), which can promote tumor metastasis. Moreover,high glutathione(GSH) levels in CRC cells significantly reduce Oxa sensitivity and seriously restrict the clinical application of Oxa. Herein, an Oxa(Ⅳ) prodrug with anti-inflammatory properties(desmethyl naproxe, DN) and GSH-depleting cyclodextrin pseudo-polyrotaxane carriers were prepared and further self-assembled into micellar nanoparticles(designated DNPt@PPRI). The relesae of DN from DNPt@PPRI can reduce the level of PGE2 to inhibit inflammation and tumor metastasis by decreasing COX-2 protein,and also synergize with Oxa to inhibit tumor. More importantly, GSH depletion can reduce the detoxification of Oxa and further enhance chemotherapy-induced apoptosis. DNPt@PPRI have a good GSH depletion ability to enhance the sensitivity of Oxa, indicating a potential in the synergistic chemotherapy and chemo-sensitization of colorectal cancer.

关键词： Oxaliplatin Glutathione depletion Tetravalent platinum prodrug Synergistic therapy Colorectal cancer

Surgical strategies for challenging common bile duct stones in the endoscopic era: A comprehensive review of current evidence

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World Journal of Gastrointestinal Endoscopy 2024年第6期16卷 305-317页

作者： Tharathorn Suwatthanarak Vitoon Chinswangwatanakul Asada Methasate Chainarong Phalanusitthepha Minoru tanabe Keiichi Akita Thawatchai Akaraviputh Minimally Invasive Surgery Unit Department of SurgeryFaculty of Medicine Siriraj HospitalMahidol UniversityBangkok Noi 10700BangkokThailand Graduate School of Medical and Dental Sciences Tokyo Medical and Dental UniversityBunkyo 113-8519TokyoJapan Department of Hepatobiliary and Pancreatic Surgery Tokyo Medical and Dental UniversityBunkyo 113-8519TokyoJapan Department of Clinical Anatomy Tokyo Medical and Dental UniversityBunkyo 113-8519TokyoJapan

While endoscopic retrograde cholangiopancreatography(ERCP)remains the primary treatment modality for common bile duct stones(CBDS)or choledocho-lithiasis due to advancements in instruments,surgical intervention,known as common bile duct exploration(CBDE),is still necessary in cases of difficult CBDS,failed endoscopic treatment,or altered anatomy.Recent evidence also supports CBDE in patients requesting single-step cholecystectomy and bile duct stone removal with comparable outcomes.This review elucidates relevant clinical anatomy,selection indications,and outcomes to enhance surgical understanding.The selection between trans-cystic(TC)vs trans-choledochal(TD)approaches is described,along with stone removal techniques and ductal closure.Detailed surgical techniques and strategies for both the TC and TD approaches,including instrument selection,is also provided.Additionally,this review comprehensively addresses operation-specific complications such as bile leakage,stricture,and entrapment,and focuses on preventive measures and treatment strategies.This review aims to optimize the management of CBDS through laparoscopic CBDE,with the goal of improving patient outcomes and minimizing risks.

关键词： Choledocholithiasis Common bile duct stone Difficult common bile duct stone Common bile duct exploration Laparoscopic common bile duct exploration

Matrine promotes neural circuit remodeling to regulate motor function in a mouse model of chronic spinal cord injury

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Neural Regeneration Research 2019年第11期14卷 1961-1967页

作者： Norio tanabe Tomoharu Kuboyama Chihiro Tohda Division of Neuromedical Science Institute of Natural Medicine University of Toyama

In chronic phase of spinal cord injury, functional recovery is more untreatable compared with early intervention in acute phase of spinal cord injury. In the last decade, several combination therapies successfully improved motor dysfunction in chronic spinal cord injury. However, their effectiveness is not sufficient. We previously found a new effective compound for spinal cord injury, matrine, which induced axonal growth and functional recovery in acute spinal cord injury mice via direct activation of extracellular heat shock protein 90. Although our previous study clarified that matrine was an activator of extracellular heat shock protein 90, the potential of matrine for spinal cord injury in chronic phase has not been sufficiently evaluated. Thus, this study aimed to investigate whether matrine ameliorates chronic spinal cord injury in mice. Once daily intragastric administration of matrine(100 μmol/kg per day) to spinal cord injury mice were starte at 28 days after injury, and continued for 154 days. Continuous mat rine treatment improved hindlimb motor function in chronic spinal cord injury mice. In injured spinal cords of the matrine-treated mice, the density of neurofilament-H-positive axons was increased. Moreover, matrine treatment increased the density of bassoon-positive presynapses in contact with choline acetyltransferase-positive motor neurons in the lumbar spinal cord. These findings suggest that matrine promotes remodeling and reconnection of neural circuits to regulate hindlimb movement. All protocols were approved by the Committee for Animal Care and Use of the Sugitani Campus of the University of Toyama(approval No. A2013 INM-1 and A2016 INM-3) on May 7, 2013 and May 17, 2016, respectively.

关键词： matrine chronic spinal cord injury axonal growth synaptogenesis hindlimb locomotor presynapse immunohistochemistry Basso Mouse Scale Body Support Score Sophora flavescens

Molecular evidence for biochemical diversification of phenolamide biosynthesis in rice plants

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Journal of Integrative Plant Biology 2016年第11期58卷 903-913页

作者： Kimiaki tanabe Yuko Hojo Tomonori Shinya Ivan galis Institute of Plant Science and Resources Okayama University Kurashiki 710-0046 Japan

Two phenolamides （PAs）, p-coumaroylputrescine and feruloylputrescine strongly accumulate in rice （Oryza sativa cv. Nipponbare） leaves subjected to attack of chewing and sucking herbivores. Here we identified and characterized in vitro three novel rice genes that mediated coumaroyI-CoA/ feruloyI-CoA conjugation to polyamines, putrescine and agmatine. Interestingly, two genes were highly specific for their polyamine substrates, encoding putresdne N-hydrox- ycinnamoyltransferase and agmatine N-hydroxycinnamoyl- transferase, while the third enzyme could use both polyamines and it was therefore annotated as putrescine/ agmatine N-hydroxycinnamoyltransferase. All genes were preferentially expressed in rice roots and developing flowers, and in addition, the putrescine/agmatine N-hydroxycinnamoyl- transferase transcripts were strongly induced by wounding in the young rice leaves. Because the wound response of this gene was only partially suppressed in the jasmonoyI-L-isoleucine deficient plants （Osjarl）, it suggests that its upregulation （as well as inducible PAs in rice） may be largely independent of jasmonoyI-L-isoleucine signaling pathway. The finding of three closely related genes with a similar and/or overlapping activity in PA biosynthesis provides another striking example of rapid diversification of plant metabolism in response to environmental stresses in nature.

关键词： Acyltransferase p-coumaroylputrescine defense feruloylputrescine phenolamides rice （Oryza sativa）