查询词典 peg

PEG-PLA block copolymers were synthesized using polyethylene glycol and lac-tide in the presence of low toxic stannous octoate. The copolymer structure was determined by 13C NMR and the average block leng this were calculated.

本文报道聚乙二醇在辛酸亚锡存在下与丙交酯反应合成PEG-PLA嵌段共聚物，用~(13)C NMR测定了共聚物的结构，估算了平均链段长度。

The star shaped block copolymers were prepared by ring opening polymerization of ε caprolactone in the presence of multiarm PEG using stannous octoate as a catalyst.

以辛酸亚锡为催化剂，通过星型聚乙二醇引发ε己内酯开环聚合，制备了PEG b PCL嵌段共聚物，进一步以丙烯酸酯封端，合成了 3种水溶性大分子单体。

With the increase in PEG block content in copolymer, in vitro uptake percentage was decrease and opsonization was enhanced.

PEG-PBLG胶束随MeO-PEG嵌段比例的增加，体外细胞摄取率有降低趋势，抵抗血浆蛋白的调理作用增强。

In vitro test indicated that the PEG-PBLG micelles could avoid the uptake by mouse peritoneal macrophage and decrease opsonization by plasma proteins.

通过体外细胞吞噬实验，考察PEG-PBLG胶束抗巨噬细胞吞噬及血浆蛋白调理的作用。

PEG-PBLG micelles are characterized by solubilizing hydrophobic drug, increasing the nano-particles stability, avoiding the uptake by MPS at some extent, and decreasing opsonization by plasma proteins, sustained-release drug and decreasing the side effect.

PEG-PBLG载体材料结构明确，合成产率高，可生物降解；PEG-PBLG胶束可增溶疏水性药物，增强微粒制剂的稳定性及一定程度避免MPS的摄取，减小血浆蛋白的调理；载药胶束可缓释药物，降低药物毒性。

From two elevation altitude habitats of 3600 m, 2500 m at cold regions were analyzed and compared by means of light and scanning electron microscope using a new embedding method with PEG and Epon-812. Our results indicated that Papaver croceum Ldb.

采自乌鲁木齐河源区海拔3600m、2500m两种海拔高度，采用PEG和Epon-812两次包埋方法，在光学显微镜和扫描电子显微镜下叶片剖面结构进行了观察。

The results showed that in this experiment condition the optimal preparation condition for TiO2 films which have better photoactivity was found to be: TiO2 sol concentration 0.7mol/l, the amount of PEG 0.5g, coating cycles 3, heat-treated terms 480 C, Ih.

研究结果表明：在本实验条件下，具有较好光催化活性的TiO_2薄膜的最佳制备条件为：TiO_2溶胶的浓度为0.7mol／1，聚乙二醇的加入量为0.5g，镀膜层数为3，热处理温度为480℃，保温1h。

RESULTS The solubility, photostability and release rate of CPT were increased in PEG 350-3.0 PAMAM solution in comparison with that in G 3.0 PAMAM solution.

结果 PEG350-3.0PAMAM较之同代PAMAM对喜树碱具有更强的增溶作用和更快的释药速度，同时可改善喜树碱的光敏性，增加其稳定性。

The epidermis dominant the changes. Mesenchymal is subordination.β-catenin expression begin from placode epidermis stage and go up increasingly as well as peak value maintain to hair follicle. The range of mesenchymal change is less. SHH expression transform is dramatically to stimulate the placode-germ-peg-hair follicle.

结果表明，在睫毛毛囊的形态发生中表皮－间充质相互作用以表皮为主导间充质随着表皮而变化，β-catenin从基板表皮开始表达，逐渐增强，从毛芽至形成毛囊维持高水平，间充质变化幅度较小；Shh则在睫毛形态发生中变化剧烈，刺激基板－毛芽－毛钉－毛囊。

Catenin was detected in suprabasal, epidermal basal layer, placode, hair bud in early phase(E68～93),and expressed strongly in epidermal basal layer, placode, and hair bud, in suprabasal expressed less strongly; in metaphase(E94～184),β-catenin was detected in epidermis, hair peg, and in suprabasal, epidermal basal layer, hair follicle bulge, inner root sheath, outer root sheath, follicular infundibulum expressed less strongly; in late phase(E184～225),β-catenin expressed weakly in epidermal basal layers, while expressed strongly in epidermal keratinocytes.

结果显示：β-catenin在胎牛蹄边缘毛囊形态发生早期(68～93天)表达于表皮、基底层、基板和毛芽中，其中基底层、基板、毛芽中呈强阳性，表皮中呈中阳性；在毛囊形态发生中期(94～184天)表达于基底层、表皮和毛钉中，其中基底层、表皮、隆突区、内外根鞘和漏斗部呈中阳性；在毛囊形态发生晚期(184～225天)只在表皮及基底层有表达，其中基底层呈弱阳性，表皮呈强阳性。

There had been a moment during the breakfast meeting, though, after the backslapping and the small talk and when all of us were seated, with Vice President Cheney eating his eggs Benedict impassively and Karl Rove at the far end of the table discreetly checking his BlackBerry, that I witnessed a different side of the man.

那次早餐会期间，在表示过关心和寒暄以后，我们所有人坐了下来，我注意观察了一下，副总统切尼面无表情地吃着班尼迪克蛋（Eggs benedict，源自美国，以英式松饼、火腿、水煮蛋以及荷兰酱组合而成），卡尔。罗夫在餐桌的远端谨慎地经常查看他的黑莓手机，我目睹了他所不为人知的一面。

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