Docetaxel albumin nano composition and preparation method thereof
A technology of nano-albumin and docetaxel, which is applied in the field of pharmaceutical preparations and can solve the problems of lack, no targeting, and low toxicity and side effects
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[0067] Preparation of docetaxel-albumin nanocomposite
[0068] The present invention adopts the emulsification method to prepare the albumin nanometer composition for injection, and can selectively adopt ultrasonic or high pressure homogenization process to further control the particle size. In one embodiment of the present invention, docetaxel in a given prescription is dissolved in an appropriate amount of ethanol or other suitable solvent, and stabilizers such as phospholipids and fatty acids are dissolved in an appropriate amount of dichloromethane, and the two are mixed as an oil phase ; Dissolve albumin in an appropriate amount of deionized water (water phase), drop the oil phase into the magnetically stirred water phase at room temperature or in an ice-water bath, and continue to stir for a certain period of time, and then remove ethanol and Dichloromethane to prepare docetaxel-loaded albumin nanocomposites.
[0069] In the present invention, after the docetaxel drug i...
Embodiment 1
[0084] Example 1: Prescription and preparation process of docetaxel albumin nanocomposite
[0085] Table 1 Proportion (mg) of each component in the formulation of docetaxel-encapsulated albumin nanocomposites
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[0087]
[0088] Dissolve docetaxel in prescription F01-20 in Table 1 in an appropriate amount of chloroform or other suitable solvent, dissolve the stabilizer in an appropriate amount of ethanol, and mix the two as an oil phase; dissolve albumin in an appropriate amount of deionized water. In water (aqueous phase), drop the oil phase into the water phase at room temperature or in an ice-water bath, stir and disperse the initial emulsification for a certain period of time, and then carry out nano-dispersion in a high-pressure homogenizer or an emulsifying machine, and then perform rotary evaporation or thin film in a water bath at 50°C. The organic solvent is removed by evaporation to obtain an albumin nanocomposition comprising docetaxel.
[0089] The resu...
Embodiment 2
[0095] Example 2: Characterization of Docetaxel Albumin Nanocomposition - Morphology and Particle Size
[0096] A small amount of albumin nanocomposites were taken on a copper mesh, negatively stained with phosphotungstic acid, and the morphology of the nanocomposites was observed under a transmission electron microscope. The particle size of the prepared docetaxel albumin nanocomposites was measured by dynamic light scattering particle size analyzer, and the average particle size was measured to be 132.4±0.59nm. The results of electron microscopy and particle size distribution are as follows: figure 1 shown in. The results show that the nano-composition of the present invention is spherical, and the appearance is round and relatively uniform.
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