首页> 中文会议>第八届全国发光学术会议 >深红色发射荧光体Ln(Mg,Ca)B<,5>O<,10>:Mn(Ln=Ce,Gd,Y)的光谱性质

深红色发射荧光体Ln(Mg,Ca)B<,5>O<,10>:Mn(Ln=Ce,Gd,Y)的光谱性质

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摘要

该文研究五硼酸盐Ｌｎ（Ｍｇ，Ｃａ）Ｂ〈，５〉Ｏ〈，１０〉：Ｍｎ（Ｌｎ＝Ｃｅ，Ｇｄ，Ｙ）的光谱性质，在五硼酸盐中，Ｍｎ〈’２＋〉呈现深红色发射。

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来源
《第八届全国发光学术会议》|1998年|144|共1页
会议地点南昌
作者
黄京根;
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作者单位

中国物理学会中国稀土学会;

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会议组织
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原文格式 PDF
中图分类显示材料;
关键词
发射荧光体;

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1. LnMgB_5O_（10）：Mn^（2＋）（Ln＝La，Gd，Y，Ce）体系中Mn^（2＋）的双重谱与配位场参数 [J] . 胡林学 ,段聂晶 ,宋功武 . 湖北大学学报：自然科学版 . 1994,第3期
2. BACKGROUND： Vibrio vulnifi cus inside the body could activate the NF-!B signaling pathwayand initiate the inflammatory cascade. The lung is one of the earliest organs affected by sepsisassociated with acute lung injury. High mobility group protein B1 （HMGB1） is an important late-actingpro-infl ammatory cytokine involving in the pathophysiology of sepsis. It is also involved in the injuryprocess in the lung, liver and intestine. There has been no report on the involvement of HMGB1 inVibrio vulnifi cus sepsis-induced lung injury.METHODS： Sixty rats were randomly divided into a normal control group （group A, n=10） anda Vibrio vulnificus sepsis group （group B, n=50）. Sepsis was induced in the rats by subcutaneousinjection of Vibrio vulnificus （concentration 6×108 cfu/mL, volume 0.1 mL/100g）） into the left lowerlimbs. The rats in group B were sacrifi ced separately 1, 6, 12, 24, and 48 hours after the infection.Their lungs were stored as specimens, lung water content was measured, and lung pathology wasobserved under a light microscope. The expressions of the HMGB1 gene and protein in the lungswere detected by RT-PCR and Western blot. Data were analyzed with one-way analysis of variance（ANOVA） and the LSD method for pair-wise comparison between the two groups. P〈0.05 wasconsidered statistically signifi cant.RESULTS： Compared to group A （0.652±0.177）, HMGB1 mRNA expression in the lungs ofgroup B was signifi cantly higher at 0 hour （1.161±0.358, P=0.013）, 24 hours （1.679±0.235, P=0.000）,and 48 hours （1.258±0.274, P=0.004）（P〈0.05）, and peaked at 24 hours. Compared to group A（0.594±0.190）, HMGB1 protein expression at 6 hours （1.408±0.567, P=0.026） after infection wassignificantly increased （P〈0. 05）, and peaked at 24 hours （2.415±1.064, P=0.000） after infection.Compared to group A （0.699±0.054）, lung water content was significantly increased at 6 hours（0.759±0.030, P=0.001）,12 hours （0.767±0.023, P=0.000）, 24 hours （0.771±0.043, P=0.000） and 48hours （0.789±0.137, P=0.000） after infection （P〈0.05）. Compared to group A, pathological changesat 12 hours in group B indicate marked pulmonary vascular congestion, interstitial edema andinfl ammatory infi ltration. Alveolar cavity collapse and boundaries of the alveolar septum could not beclearly identifi ed.CONCLUSION： Vibrio vulnifi cus sepsis can lead to injury in rat lungs, and increased HMGB1expression in lung tissue may be one of the mechanisms for injury from Vibrio vulnifi cus sepsis. [J] . Qiao-meng Qiu ,Zhong-wang Li ,Lu-ming Tang . 世界急诊医学杂志(英文) . 2011,第4期
3. Relationship between Crystal Structure and Luminescence Properties of (Y_(0.96-x)Ln_xCe_(0.04))_3Al_5O_(12) (Ln=Gd, La, Lu) Phosphors [J] . 孔丽 ,甘树才 ,洪广言 . 稀土学报：英文版 . 2007,第6期
4. LnAlOs中Ce3+，Tb3+，Dy3+的发光及Ce-Tb，Ce-Dy的敏化发光(Ln=La，Gd，Y) [J] . 王瑞萍 ,李有谟 . 发光学报 . 1990,第001期
5. Luminescence of Eu ^(3+) in LnAlO_3 (Ln=Gd,Y) under UV and VUV Excitation [J] . 王育华 ,Endo Tadshi ,李峰 . 稀土学报：英文版 . 2004,第1期
6. LnBaB<,9>O<,16>:Gd<'3+>(Ln=La,Gd,Y,Lu)的发光性质 [C] . 杨智 ,林建华 ,苏勉曾 . 中国稀土学会第四届学术年会 . 2000
7. Mn2+掺杂的NaGdF4:Yb3+,Ln(Ln=Er3+,Tm3+)纳米粒子的制备及性能 [A] . 霍晓梅 . 2014

深红色发射荧光体Ln(Mg,Ca)B<,5>O<,10>:Mn(Ln=Ce,Gd,Y)的光谱性质

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