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Objective: To discuss the influences of the concentrations of sodium cholate, cholesterol and drug, preparation temperature, ultrasonic time and power on the particle size and encapsulation efficiency of Flos Magnoliae volatile oil nano-liposome through film-ultrasonic wave technique together with membrane filter method.

目的:采用薄膜分散-超声-膜过滤法制备辛夷挥发油纳米脂质体,考察胆酸钠、胆固醇、药物浓度、超声功率和超声时间等因素对辛夷挥发油纳米脂质体粒径及包封率的影响,并对纳米脂质体的形貌、稳定性进行分析。

Under normal temperature.the Ca2+-ATPase activity was found on the innerside of the PM.on the vacuole envelope and the chloroplast envelope,and theenzyme activity declined upon heat stress.The Ca2+-ATPase activity on the vacuoleenvelope,PM.and the chloroplast envelope in both Ca2+-and oxalate-treated peppermesophyll cells was higher than that in the control under the same condition.TheCa2+-ATPase was also found at the granum lamella,and it was activatedsignificantly by exogenous Ca2+ and oxalate treatments.Under heat stress.the Ca2+-ATPase activity declined slowly in both Ca2+- and oxalate-treated mesophyll cells.But La3+ treatment inhibited the enzyme activity under both normal condition andheat stress.

常温下生长的叶肉细胞,在质膜、液泡膜、叶绿体被膜等处有Ca2+-ATPase活性,热胁迫后酶活性下降;外源Ca2+和草酸预处理对辣椒叶肉细胞各种膜上Ca2+-ATPase活性具有促进作用,特别是定位于液泡膜、质膜和叶绿体被膜上的酶活性明显比对照提高;在叶绿体基粒和基质片层上也有酶活性,并且Ca2+和草酸预处理对该部位上的酶活性激活作用更明显;La3+处理的作用与Ca2+和草酸处理的效果相反。

Through ultracentrifuge method the encapsulation efficiency was measured easily. Single factor investigation was carried out , and optimal formulation was decided .

建立了瑞利散射光测定微量NGF含量的方法;以超声法制备了小粒径的NGF脂质体;建立了超速离心法测定NGF脂质体包封率的方法;对影响NGF脂质体的包封率的因素进行考察,确定了最优处方。

The oxidation of solid biurea with chlorine in aqueous solution to produce azodicarbonamide was experimentally studied in a 1 L agitated glass vessel with a four-blade paddle stirrer. Based on the film theory, a model is first developed for this system by taking the gas-liquid and solid-liquid mass transfer, solid dissolution, and instantaneous reaction between the dissolved reactants into consideration.

在玻璃搅拌反应器中进行了固体联二脲与氯气液相氧化反应生成发泡剂 ADC过程的传质与动力学实验,提出了基于双膜理论的数学模型,以描述这一反应系统所涉及的气液和固液传质、固体溶解以及溶解物在液相中发生瞬间反应,特别是随反应进行固体反应物粒径变小导致固液传质速率减小的复杂过程。

Studies on stability indicated that PHGF proliposomes should be stored at low temperature and against light, which ensured unchange of their redispersity, content of drug, encapsulation efficiency, acid value and peroxide value. Liposomes were multilamellar vesicle structure under transmission electron microscopy. Average particle size was 0.65 micrometer, ranging from 0.09 micrometer to 1.21 micrometer. Cryoscopic value was 0.64 C determined by cryoscopic method, which was a little higher than that of isotonic solution.

以透射电镜观测PHGF前体脂质体再分散后的形态为囊泡状;激光散射法测得平均粒径为0.65μm,且粒度分布在0.09μm~1.21μm之间;该脂质体荷负电,ζ电位为-44.23mV;冰点降低法测得冰点降低度数为0.64℃,略高于等渗溶液冰点降低度数;测得粘度为1.83mPa·s,达到生理要求;此外,对PHGF脂质体的刺激性、溶血性、热原、异常毒性和过敏沈阳药科大学硕士学位论文拘要性检查表明均符合静脉注射给药的标准。

The medium-grained sandstones and medium-fine-grained sandstones form good reservoirs and the poststones medium reservoirs, while siltstones form poor reservoirs and pelitic siltstones poorest reservoirs. Sand bodies mostly develop in sand-flats, tidal channels and distributary channels of braided stream delta microfacies. The reservoir rocks of sand-flat and tidal channel are best with the physical property. Diagenesis such as compaction, cementation and dissolution has strongly reformed the reservoir rocks and the late dissolution has greatly improved their porosity and permeability.

中粒砂岩、中细粒砂岩属好储层,细粒砂岩属中等储层,粉细砂岩,粉砂岩属较差储层,而泥质粉砂岩则属差储层;砂坪、潮道和辫状河三角洲分流河道微相中的砂体最发育,它们决定了储集岩的发育、分布及原始物性条件;砂坪和潮道储集岩的物性最好,辫状河三角洲分流河道储集岩的物性次之,砂泥混合坪、辫状河三角洲分流河道间储集岩的物性较差;成岩作用对本区CⅠ油组的储层有强烈的改造作用,尤其是较晚期的溶蚀作用对岩石的储集性能有明显的改善,对本区CⅠ油组中孔高渗透储层的形成有很大的贡献。

There appeared prominent signals on pericentric regions of all the other chromosomes besides chromosome 4. The signals were strong on most of the chromosomes and weak only on one chromosome pair.

这一克隆除在第4染色体近着丝粒区显示明显的信号外,其它染色体的近着丝粒区同样具有信号,多数染色体为强信号,仅1对染色体信号较弱,还有3对染色体具有像着丝粒两侧异染色质块(pericentric heterochromatin block)的信号,中间有一个缢痕。

Immunoelectron microscopy showed that the distinct ultrastructure of fibroblast and the group, spot gold particle specificity distribution shape. The positive markers of CTGF were mainly located in the RER,while there are expression in RER ribosome, Cf, ECM, desmosome connection, euchromatin,et al.

免疫电镜标记显示成纤维细胞细胞超微结构清晰,金颗粒呈团状、点灶状分布,特异性强,CTGF蛋白阳性标记主要位于粗面内质网,粗面内质网核糖体、胶原纤维、细胞外基质、桥粒连接、常染色质等部位也有表达。

The granulite xenoliths, as the product of basaltic underplating and the representative of the present-day lower crust, are different from the local Archean granulite terrains There is a systematic variation of Sr-Nd isotopes from the granulites to the pyroxenites and the peridotites, indicating the possible crust-mantle interaction beneath Hannuoba area.

麻粒岩类捕掳体所代表的年轻大陆下地壳为玄武质底垫作用的产物,与麻粒岩地体所代表的古老大陆下地壳不同。橄榄岩类捕掳体则具亏损特征,辉石岩类捕掳体的性质介于麻粒岩类和橄榄岩类捕掳体之间,但石榴子石辉石岩显示了其特殊性。

The final coated particle exiting from the condenser is then introduced into the aerodynamic particle sizer spectrometer or home-built aerosol laser time-of-flight mass spectrometer, and its aerodynamic size directly effects on the matrix to analyte molar ratio, which is very important for MALDI technique.

利用自行研制的蒸发/冷凝实验装置作为基质辅助激光解吸/电离飞行时间质谱仪的特种接口,通过冷凝方式在线添加基质,冷凝管出口处的最终粒子直接引入空气动力学粒径分析仪或自行研制的飞行时间质谱仪,可对实验室产生的生物气溶胶粒子进行实时检测。

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