查询词典 cell membrane

Pt nano particles decorated with nafion ionomers were synthesized and used as electrocatalyst in proton exchange membrane fuel celldue to plentiful proton channels provided by the enwrapping polymers.Then decorated Pt particles were deposited on carbon nanotubes,which enwind each other into interconnect nets and form the framework of the catalyst layer for PEM fuel cell.

介绍了Nafion聚合物作为修饰离子，合成具有原位质子导电能力的纳米Pt颗粒；TEM分析显示Pt颗粒的平均粒径为4nm，颗粒之间界限明显，分散状态良好；将这种离子导体修饰的纳米Pt沉积到纳米碳管表面作为质子交换膜燃料电池催化电极，纳米碳管相互缠绕在催化层形成交联的电子通道。

Ni-P-mCMC/mCS bipolar membrane was prepared from carboxymethyl cellulose modified with phosphorylated agent as a cation exchange layer and chitosan modified with glutaraldehyde as an anion exchange layer. The electrolysis cell was constituted by Ni-P-mCMC/mCS BPM as a septum for electrogenerating furfural alcohol and furoic acid.

以磷酸化试剂改性羧甲基纤维素钠制备了阳膜层，以戊二醛改性壳聚糖制备了阴膜层溶胶，将阴膜层溶胶流延于阳膜层上，制备了P-mCMC/mCS双极膜，而后以化学镀方法在阳膜层表面镀镍，制备了Ni-P-mCMC/mCS双极膜，并应用于成对电合成糠醇、糠酸。

Methods:We compared the scaffold structure,the result of hypodermal embeding test and cell growth curve of using collagen membrane with those of PHB.

目前临床应用的人造心脏瓣膜有机械瓣和生物瓣两种，尽管其能改善和延长患者的生命，但均未达到理想程度。

Results The intramural capillary lymphatics of rat's rectum were observed in deep lamina propria of tunica membrane and the dermal papilla layer of anal pectin. The intramural capillary lymphatics and lymphatics were both observed in tela submucosa, reticular layer, hypodermis and intermuscular and serosa. The capillary lymphatics in rectums' wall have the similar ultrastructure feature to normal ones. Three kinds of endothelial cells junctions are overlapping junctions, embedding-junctions and end to-end-type junctions. About 21% of cell-junctions are opening types. There are normal organelles and many vesicals in the endothelial of capillary lymphatics.

结果 直肠壁内的毛细淋巴管见於黏膜固有层深部和肛梳区真皮乳头层；在黏膜下层和肛梳区的网状层、皮下组织以及肌层和浆膜层内均有毛细淋巴管和淋巴管，直肠壁内毛细淋巴管的超微结构具有一般毛细淋巴管超微结构的特点，内皮细胞连接有重叠、嵌插和端端连接3种类型，处於开放状态约占21%；胞质内含有一般的细胞器，幷含有大量的囊泡。

Moreover, because the decompounding to the basement membrane and intramatrical is extremely important to the move of endothelium cell which is essential to the blood vessel forming.

另外，因为对基底膜和基质组织的降解对血管生成所必需的内皮细胞迁移极为重要，所以，认为MMPs是肿瘤血管生成的关键之一。

The main injury of kidney was located in proximal tubular epithelial cell ,it peaked at 12 hours and 24 hours after reperfusion,the sporadic karyopyknosis and karyorrhexis could be seen,but the basement membrane preserved well.48 hours later,the restoration could be seen.7 days later it restored obviously.

肾脏损害主要以近曲肾小管上皮细胞为主，12h、24h损伤达到高峰，可见核固缩、核碎裂，但基底膜保留完好。48h开始出现修复现象。7d后明显修复。

Result 1 Magnetic nanoparticles, magnetic nanoparticles modified with antisense oligodeoxynucleotide of human telomerase reverse transcriptase induced HL-60 tumor cells to apoptosis, we could see typical morphologic change of apoptosis cells: karyopyknosis, chromation"s condensing and aggregation in nuclear, forming crescent-shaped or annulus structures to lean on edge of cell nucleus"s membrane and posing apoptosis body by Atomic Force Microscope, Fluorescence microscope, transmission electron Microscope 2 There was a significant difference compared with control group(p.01), inhibition ratio had significant positive correlation with medication dosage and time ;during 0.8-8μM dosage amplitude, inhibition ratio accrescenced by dosages increasing. However, the inhibition ratio would decrease when dosage over 8-80μM.

结果 1 磁性纳米粒子、修饰有端粒酶反义寡核苷酸的磁性纳米粒子诱导HL-60细胞发生凋亡，原子力显微镜、光学显微镜、荧光显微镜和透射电镜下均观察到HL-60细胞呈现典型的凋亡细胞的形态变化：细胞核固缩，核内染色质浓缩、凝聚、形成新月形或环状结构紧靠在细胞核膜边缘，并形成凋亡小体。2 磁性纳米粒子、修饰有端粒酶反义寡聚脱氧核苷酸的磁性纳米粒子对HL-60肿瘤细胞的生长和增殖有明显的抑制作用，与对照组相比有显著性差异(p＜0.01)，在剂量为0.8-8μmol／L范围内，抑制率随剂量的增加而增加，当剂量超过8μmol／L时，抑制率反而下降；3 磁性纳米粒子、修饰有端粒酶反义寡聚脱氧核苷酸的磁性纳米粒子可增强p53基因的表达活性，引起DNA降解损伤，反向调节细胞周期活动，促使细胞从G0期进入G1期，抑制肿瘤细胞的生长。4 修饰有端粒酶反义寡聚脱氧核苷酸的量子点能通过内吞作用进入HL-60肿瘤细胞的细胞核，可以在细胞内进行定位和促进HL-60肿瘤细胞的凋亡。

Under electron microscope, tumor cell emerged karyopyknosis, new-moon shaped or circular, nucleus membrane was clesr, endoplasmic reticulum was dilated, and mitochondrion was swollen. A lot of apoptosis cells emerged in the tumor foci under light microscope.

光镜下显示肿瘤灶中出现许多凋亡细胞；肿瘤组织电镜观察，瘤细胞核染色质浓集成块，在核膜内呈新月形或环形排列，核膜清楚，瘤细胞内质网扩张，线粒体肿胀。

SDS could dissolve the protein envelop as well as the lipide membrane of pathogen and cell. SDS is applied in light industry widely and safely, SDS is also made as microbicides in topical vaginal formulations to prevent the transmission of herpes and possibly other pathogens that cause sexually transmitted diseases,including HSV.

十二烷基硫酸钠(Sodium dodecyl sulfate，SDS)是一种阴离子型表面活性剂，为生物膜的最有效的溶解剂，它可以同病菌和各种高等动物的细胞膜的磷脂等脂质体结合而溶解，与蛋白质结合而变性。

Strains D1 and D2 have the highest lipolytic activity in culture supernatent, great amounts lipase produced by remainder strains was located on the outer membrane of the cell envelope and was not released into the culture medium .

在摇瓶发酵水平上进行产酶优化试验，确定D2产脂肪酶的最佳培养方案为：培养温度9℃，摇床转速180r/min，培养时间40h，以2216为基础培养基，5g/l牛肉膏做碳源，6g/l氯化铵做氮源，分别替代酵母膏和蛋白胨。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。