A photosensitive liposome carrying water-soluble drugs
A photosensitive lipid, water-soluble technology, used in liposome delivery, drug combination, anti-tumor drugs, etc., can solve the problems of slow drug release, incapable of encapsulated drug release, low local drug concentration in tumors, etc.
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Embodiment 1
[0050] Composition of photosensitive liposomes:
[0051] Doxorubicin Hydrochloride (DOX·HCI) 2.76mg
[0052] Dipalmitoylphosphatidylcholine (DPPC ) 31.64mg
[0053] Hydrogenated Soy Lecithin (HSPC) 11.42mg
[0054] Cholesterol 5.0mg
[0055] Polyethylene glycol phospholipids (DSPE-PEG 2000 ) 7.2mg
[0056] OMP-modified hollow gold nanoparticles (OMP-HAuNS) 1.0mg (~2.5×10 12 particles)
[0057] Prescription amounts of DPPC, HSPC, Cholesterol, DSPE-PEG 2000 and OMP-HAuNS (HAuNS:OMP=1:0.0279w / mol), placed in an eggplant-shaped bottle, dissolved in an organic solvent (chloroform:dichloromethane=1:1v / v), and vacuum decompressed in a water bath at 45°C Rotary evaporated overnight, a thin film formed on the vial walls. Add ammonium sulfate solution with pH = 5.4 into the eggplant-shaped bottle, and hydrate in a water bath at 60°C for 1 hour, the film falls off and dissolves to form a multilayered liposome solution. Sonicate the above solution to the desired particle size us...
Embodiment 2
[0075] Composition of photosensitive liposomes:
[0076] Doxorubicin Hydrochloride (DOX·HCI) 2.76mg
[0077] Dipalmitoylphosphatidylcholine (DPPC) 31.64mg
[0078] Hydrogenated Soy Lecithin (HSPC) 11.42mg
[0079] Cholesterol 5.0mg
[0080] Polyethylene glycol phospholipids (DSPE-PEG 2000 ) 7.2mg
[0081] Hollow gold nanoparticles (HAuNS) 1.0mg (~2.5×10 12 particles)
[0082] Prescription amounts of DPPC, HSPC, Cholesterol, DSPE-PEG 2000 and HAuNS were placed in an eggplant-shaped bottle, dissolved in an organic solvent (chloroform: dichloromethane = 1:1 v / v), and evaporated overnight in a 45°C water bath under vacuum under reduced pressure to form a thin film on the bottle wall. Add ammonium sulfate solution with pH = 5.4 into the eggplant-shaped bottle, and hydrate in a water bath at 60°C for 1 hour, the film falls off and dissolves to form a multilayered liposome solution. Sonicate the above solution to the desired particle size using probe sonication. The resultin...
Embodiment 3
[0084] Composition of photosensitive liposomes:
[0085] Doxorubicin Hydrochloride (DOX·HCI) 2.76mg
[0086] Dipalmitoylphosphatidylcholine (DPPC) 31.64mg
[0087] Hydrogenated Soy Lecithin (HSPC) 11.42mg
[0088] Cholesterol 5.0mg
[0089] Polyethylene glycol phospholipids (DSPE-PEG 2000 ) 7.2mg
[0090] Polyethylene glycol phospholipid modified hollow gold nanoparticles (DSPE-PEG 2000 -HAuNS) 1.0mg (~2.5×10 12 particles)
[0091] Prescription amounts of DPPC, HSPC, Cholesterol, DSPE-PEG 2000 and DSPE-PEG 2000 -HAuNS(HAuNS:DSPE-PEG 2000 -SH=1:0.0279w / mol), placed in an eggplant-shaped bottle, dissolved in an organic solvent (chloroform:dichloromethane=1:1v / v), and evaporated in a water bath at 45°C under vacuum and rotary evaporation overnight. Form a thin film. Add ammonium sulfate solution with pH = 5.4 into the eggplant-shaped bottle, and hydrate in a water bath at 60°C for 1 hour, the film falls off and dissolves to form a multilayered liposome solution. Sonic...
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