1370349-51-1Relevant articles and documents
Multifunctional imaging cross-linked stable nanometer drug-loading micelles and preparation method thereof
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, (2017/12/28)
The present invention discloses multifunctional imaging cross-linked stable nanometer drug-loading micelles and a preparation method thereof. The preparation method comprises: adding 200 mg of an amphiphilic drug carrier mPEG-S-Trityl-Cys-Dopa and a hydrophobic anti-cancer drug to an organic solvent, dissolving, and carrying out dialysis by using a dialysis bag to remove free Fe; carrying out centrifugation, and filtering the supernatant by using a 0.45 [mu]m microporous filtration membrane; and carrying out freeze drying on the filtrate, wherein the freeze-dried product is the multifunctional imaging cross-linked stable nanometer drug-loading micelles mPEG-S-Trityl-Cys-Dopa-Fe/hydrophobic anti-cancer drug. According to the present invention, the obtained nanometer micelles have the stability and the pH-sensitivity, and can be visible by MRI, can break through the single-function mode of the traditional drug delivery system, can integrate the MRI imaging function and the drug carrier function, and can achieve the synchronous diagnosis and treatment of cancers.