查询词典 fluorescent

Based on the changes in spectrum characters of the fluorescent probes reacting with reactive oxygen species, we have carried out three aspects of investigation:First, two fluorescent probes of O2- vanillin-8-aminoquinoline and 2-(2-pyridil)-benzothiazoline were synthesized.

因此，针对动、植物生物活体内自由基开创新的分析与检测技术是分析化学学科发展中具有挑战性的前沿课题之一。

Therefore, dioxotetraamine combined fluorene by methylene is a fluorescentsupermolecule used as fluorescent switch and fluorescent sensor.

因此，二氧四胺与芴的亚甲基相连即构成水溶性的可用作荧光开关的超分子体系。

The biomechanical tests showed that two kinds of artificial bones had not significant difference on compressive strength and Young\'s modulus(P＞0.05),while the flexural strength of nano-nacre artificial bone was less than the control group(P＜0.05).3.The results of CCK-8 showed that the difference were not significant in each group,the proliferation of osteoblast reached the peak at the 5th day;7 days after being co-cultured,the total protein content of study group was higher than control group and blank group(P＜0.05),while the difference between control group and blank group was not significantP＞0.05The difference of alkaline phosphatase activities among three groups was not significant(P＞0.05The SEM view showed that osteoblast attached and grew well in two kinds of artificial bone.4.X-ray photography showed that two kinds of powder started to degrade in 2 weeks;this phenomenon became more appear in 4 weeks,nano-nacre powder degraded faster than micron-nacre powder,while the hole shadow was easy to be found;in 8 weeks,all the femoral holes recovered and returned to normal bone mineral density in all groups.Analysis of tetracycline fluorescent double marks in the hard tissue grinding slices indicated that new bone grew fastest around the bone defect area in study group,while most slowly in blank groupP＜0.05 SEM(scanning electron microscope observation showed that nano-nacre powder degraded more quickly.The same result can be found through the demineralized sections morphometric analysis,and both of the composite artificial bones made from those two kinds of nacre powder had the good connection with the adjacent tissue in rats body without apparent inflammatory response.5.X-ray photography showed that rabbit\'s bone defects healed faster in study group since NNAB implanted than in control group since MNAB implanted.At 24 weeks after operation,bone density in radial defects had nearly accessed to the normal area,while lower in control group,and turned up nonunion in blank group;The checking of BMD showed that results in study group were higher than those in control group at 8,16 and 24 week(P＜0.05), and the difference between the BMD values in study group at 24 week and those in blank group was not significant(P＞0.05).The gross specimens showed satisfactory histocompatibility both in study group and in control group,with bone tissue growing from two sides into the center of implanted materials; Normal slices in HE stain and hard tissue grinding slices in Stevenel\'s blue/Van Geison\'s picro-fuchsin stain showed that the bone growth tendency was better in study group than that in control group,and the medullary cavity had been penetrated to the implanted materials in study group at 24 week;Analysis of tetracycline fluorescent double marks in the hard tissue grinding slices indicated that new bone in both groups grew fastest 8 weeks after surgery,while slow down at 16 week.

纳米珍珠层/消旋聚乳酸复合人工骨与微米珍珠层/消旋聚乳酸复合人工骨分别与成骨细胞共培养后，其各时间点CCK-8法检测值与空白对照无显著差异(P＞0.05)，成骨细胞均在第5天达到增殖高峰期；培养7天后，实验组细胞蛋白含量高于对照组及空白组(P＜0.05)，后两者之间则无显著差异P＞0.05碱性磷酸酶活性在三组间均无显著差异(P＞0.05电镜下可见成骨细胞在两种人工骨上都有良好生长贴附能力。4.X-ray显示两种粉体在大鼠股骨骨洞植入第2周时都开始出现了降解，第4周时更为明显，纳米珍珠层粉较之微米珍珠层粉降解更快，而空白对照组骨洞阴影仍可见，至8周时，则所有组骨洞均己闭合修复，X-ray下已不可见原钻孔痕迹，恢复正常骨质密度；硬组织磨片四环素荧光双标记结果显示纳米珍珠层粉植入组较其余两组在骨缺损区周围新骨生长速度更快，空白组速度最慢P＜0.05电镜观察及常规脱钙切片亦可见到纳米粉体降解较快；由以上两种原材料制得的纳米珍珠层/消旋聚乳酸复合人工骨与微米珍珠层/消旋聚乳酸复合人工骨在大鼠体内均与周围组织结合良好，无明显炎症反应。5.X-ray显示纳米珍珠层/消旋聚乳酸复合人工骨植入兔桡骨缺损区后其骨愈合速度较对照组微米珍珠层/消旋聚乳酸复合人工骨植入的快，至植入术后24周，实验组骨缺损区接近正常骨密度，对照组骨缺损区密度较低，空白组则呈现骨不连状态；骨密度测量结果显示术后8周、16周、24周实验组的骨密度值高于对照组(P＜0.05，24周实验组的骨密度值与术前所测得的正常值无显著性差异P＞0.05动物取材大体所见均显示组织相容性良好，骨组织逐渐由植入材料两端向中央生长；常规切片HE染色及硬组织磨片Stevenel\'s blue/Van Geison\'s picro-fuchsin联合染色均可见实验组骨缺损区长势优于对照组，至术后24周，实验组骨髓腔与材料已呈相交通状；硬组织磨片荧光显微镜下观察，两组材料在术后8周处于骨生长最快速时期，16周时速度开始减慢，术后4、8、16周时实验组的新骨生长速度均较对照组的快

Since the molecular clip of glycoluril is also an important supramolecular host but few studies have been done in the field of fluorescent chemosensor,we proceeded with some experiments and research in this field as a trial and designed a series of novel fluorescent chemsensors including different three-dimensional cavities by introducing the fluorophores into the receptor.Their recognition and sensing abilities toward various metal ions and neutral guests were studied.

因此，我们(来源：A1dBC论文网www.abclunwen.com)做了一些尝试性的研究，在传统的甘脲主体化合物上引入荧光发色团，设计了一系列新型的、拥有不同立体空腔的荧光分子夹，并研究了它们对各种金属阳离子以及酚类中性客体分子的识别和荧光传感性能。

Objective:Through observing the positive detect rate of hemoculture, Widal reaction,lipopolysaccha-ride passive hemagglutination assay and fluorescent quantitation polymerase chain reaction in those fever patients who have highly suspected infectious with salmonella paratyphi A.We explored the clinical value of early diagnosis of fluorescent quantitation PCR regarding paratyphoid A and evaluated its specificity,sensitivity and repeatability.

目的：通过观察血培养、Widal reaction、脂多糖—被动血凝试验及荧光定量聚合酶链反应在临床高度怀疑为甲型副伤寒沙门菌感染发热患者中的检出阳性率，初步探讨荧光定量PCR早期诊断甲型副伤寒的临床价值，并评价荧光定量PCR特异性、敏感性和可重复性。

MATERIALS AND METHODS: hMSCs labeled with enhanced green fluorescent protein were transplanted into the lateral ventricle of neonatal mouse brain. At 0, 9 and 14 days post-transplantation, MICE were sacrificed and their brains were fixed with 4% paraformaldehyde. The engraftment of transplanted cells in coronal section of the recipient mouse brain was examined wider a fluorescent microscope. Indirected immunofluorescent staining was used to detect the expression of neural proteins of these grafted cells.

材料与方法：将标记绿色荧光蛋白的人骨髓间充质于细胞植入到新生3d的小鼠侧脑室中，分别于移植后0d，9d和14d处死受休鼠，取其脑组织，4%多聚甲醛固定后行冠状面冰冻切片，荧光显微镜下观察hMSCs的植入，激光共聚焦显微镜检测植入细胞神经特异性蛋白的表达，定位双重标记的植入细胞。

After 48h exposure to 50mg/L ox-LDL, under the fluorescent microscope partial cells Showed typical apoptotic morphological changes such as nacarat fluorescent body shrinking and fragment of the nucleus. At the same time, the cellular cholesterol content also increased obviously, and many lipid droplets accumulated in cells.

RAW264.7细胞经50mg／L ox-LDL处理48h后，AO／EB染色显示明显的细胞凋亡形态学特征，出现核固缩、碎裂，同时细胞内胆固醇含量显著增加(由76.3μg／mg蛋白上升至368.5μg／mg蛋白)，油红O显示细胞内有大量的脂滴存在。

Organic fluorescent compound;(benzothiazol-2-yl)naphtho[1; 2-d]oxzole derivatives; UV spectroscopy; Fluorescent spectroscopy; Quantum yield

工程科技I，化学，有机化学有机荧光化合物；苯并噻唑基-萘并噁唑衍生物；紫外光谱；荧光光谱；量子产率

DCHF is a nonfluorescent compound that can beoxidized to 2', 7'-dichlorofluorescin, a fluorescent product, by ROS in cells,which can be monitored by fluorescent microscope or confocal laser scanningmicroscope.

DCHF进入细胞后被ROS夺取二氢后氧化成二氯荧光素，用荧光显微镜和激光共聚焦显微镜观察DCF的荧光强度，表示ROS生成量的多少。

These novel indocyanines haveing good water solubility, fluorescent properties and photostability, can be used in biological analysis as fluorescent labeling reagents.

设计、合成的新荧光染料具有较好的水溶性、光稳定性和荧光性能，可望在生物分子标记、分析和分离等领域中得到重要应用。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。