复合维生素纳米乳的制备及其质量评价     

张文娟  欧阳五庆  王金虎 《中国兽医学报》2010,30(3)

制备复合维生素纳米乳,并对其进行质量评价。绘制伪三元相图筛选处方,考察其形态、粒径分布及稳定性。通过高效液相色谱测定复合维生素纳米乳中维生素A醋酸酯、维生素D3、维生素E醋酸酯的含量。结果显示,制备的复合维生素纳米乳为黄色透明液体,乳滴呈球形,平均粒径为29.8nm,在湿度75%,4、25、40、60℃条件下放置1个月,常温下放置3个月,体系澄清透明,未见分层、絮凝等物理变化。复合维生素纳米乳中维生素A醋酸酯、维生素D3、维生素E醋酸酯的平均含量分别为1.872、0.021、20.020g/L。结果表明,复合维生素纳米乳稳定性好,是一种很有前途的复合维生素制剂。  相似文献   

恩诺沙星脂质纳米乳剂对断奶仔猪血液生化指标的影响   总被引：2，自引：0，他引：2  

郭亮 《中国兽药杂志》2012,46(11):20-23

为研究不同剂量恩诺沙星脂质纳米乳剂对断奶生长仔猪血液生化指标的影响,分别按0．6、1．25、2．5、5．0mg／kg剂量对仔猪进行给药,并在给药后2、6、8和96h前腔静脉采血制血清,测定仔猪谷草转氨酶（AST）、谷丙转氨酶（ALT）、碱性磷酸酶（ALP）、淀粉酶（AMY）、尿素（Urea）和肌酐（Crea）六项血液生化指标的含量。结果显示,四个不同剂量给药组的ALT、AST、ALP、AMY和Crea的含量在2、6、8和96h与对照组差异不显著（P〉0．05）;各剂量组的Urea在2h与对照组未见统计学差异,但5．0mg／kg剂量组在6h与对照组和0．6mg／kg剂量组差异显著（P〈0．05）,在8h和96h时间点的数值与对照组和其他剂量组差异显著（P〈0．05）。试验表明,随着剂量的增加,恩诺沙星脂质纳米乳可能会对仔猪肾脏功能产生一定影响。  相似文献   

Pilot clinical study of carmustine associated with a lipid nanoemulsion in combination with vincristine and prednisone for the treatment of canine lymphoma          下载免费PDF全文

S. R. R. Lucas  R. C. Maranhão  J. L. Guerra  B. M. P. Coelho  R. Barboza  D. H. B. Pozzi 《Veterinary and comparative oncology》2015,13(3):184-193

A lipid nanoemulsion (LDE) resembling low‐density lipoprotein can target malignant tumours. In in vivo and clinical studies, association of chemotherapeutic agents to LDE decreased their toxicity and increased pharmacological action. Here, safety of LDE as carmustine carrier (50 mg m^?2, intravenous) combined with vincristine and prednisone for the treatment of dogs with lymphoma was tested and compared with commercial carmustine with vincristine and prednisone. In five dogs from LDE‐carmustine and six from commercial carmustine, complete remission was achieved (P > 0.05). Partial remission occurred in two dogs from each group. In both groups, the median progression‐free intervals (119 and 199 days) and overall survival times (207 and 247 days) were equal. Neutropenia was observed in both groups, but no other major toxicities occurred. Therefore, no difference was observed between the treatments. LDE‐carmustine was shown to be safe and effective in a drug combination protocol, which encourages larger studies to investigate the use of this novel formulation to treat canine lymphomas.  相似文献   

Development and characterization of nanoemulsions loaded with essential oil and β-cypermethrin and their bioefficacy on insect pest of economic and medical importance     

Emiliano Jesser  Cristhian Alan Yeguerman  Rodrigo Iñaki Urrutia  Ana Paula Murray  Claudia Domini  Jorge Omar Werdin-González 《Pest management science》2023,79(11):4162-4171

  相似文献   

超高压均质对紫苏油纳米乳液稳定性的影响     

李杨  胡淼  谢凤英  齐宝坤  孙禹凡 《农业机械学报》2018,49(8):381-387

采用大豆分离蛋白(Soybean protein isolate,SPI)-磷脂酰胆碱作为表面活性剂,利用超高压均质技术制备紫苏油纳米乳液,探究不同SPI质量分数以及超高压均质压力对紫苏油纳米乳液稳定性的影响。结果表明:随着SPI质量分数和超高压均质压力的增加,紫苏油纳米乳液的平均粒径和PDI值逐渐降低,在SPI质量分数为4%、均质压力140 MPa条件下紫苏油纳米乳液均一稳定,粒径最小为241.03 nm,PDI值最低为0.13;经过21 d的储藏试验,用Turbiscan稳定性分析仪测定紫苏油纳米乳液的物理稳定性,在SPI质量分数4%、均质压力140 MPa条件下,紫苏油纳米乳液未发生脂肪上浮或溶液聚集等现象,同时纳米乳液的平均粒径也未发生较大的变化,表明紫苏油纳米乳液在这一条件下具有较强的储藏稳定性。通过圆二色谱测定紫苏油纳米乳液中界面蛋白的二级结构变化,结果表明,超高压均质使α-螺旋的相对含量降低,而无规卷曲和β-折叠的相对含量升高,这说明界面蛋白的二级结构的变化对紫苏油纳米乳液的稳定性有一定的影响。  相似文献