Rhein-loaded lactoferrin nanoparticle and preparation method and application thereof
A lactoferrin and nanoparticle technology, applied in the field of rhein-loaded lactoferrin nanoparticles and their preparation, can solve the problems of poor colon targeting ability, low water solubility, low bioavailability and the like, and achieve biocompatibility Good properties, simple preparation method and good stability
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[0070] Embodiment 1, preparation of lactoferrin rhein nanoparticles of the present invention
[0071]Lactoferrin rhein nanoparticles (lactoferrin nanoparticles loaded with rhein) were prepared by dialysis technology. Lactoferrin (LF) 50 mg was dissolved in 20 mL of deionized water to prepare an LF solution. At the same time, 5 mg of rhein (RH) was completely dissolved in 1 mL of DMSO to obtain a RH solution. Under constant magnetic stirring, the above RH solution was added dropwise into the LF solution. The mixture was then placed in an ice bath and sonicated using a probe sonicator (Sonicator XL, Misonix, Melville, NY, USA) at 50% amplitude power for 5 minutes to form an emulsion. Then, the emulsion was dialyzed against deionized water (molecular weight cut-off 1000 Da) for 6 h to remove DMSO. Subsequently, it was filtered with a 0.45 μm filter to remove dust and free drug, and RH-NPs were obtained after filtration.
[0072] Afterwards, 20 mg of hyaluronic acid (HA) was a...
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