Preparation method of targeted ferroferric oxide-porphyrin containing composite nanoparticles

[0026] Specific embodiment 1: This embodiment has a method for preparing targeted ferroferric oxide-porphyrin composite nanoparticles, which is specifically carried out according to the following steps:

[0027] 1. Using FeCl 3 ·6H 2 O prepares FeCl with a concentration of 0.1 mol / L 3 Solution using FeSO 4 ·4H 2 O prepares FeSO with a concentration of 0.1 mol / L 4 Solution

[0028] Under nitrogen protection and mechanical stirring conditions, according to Fe 3+ With Fe 2+ The molar ratio is 2:1, and 100mL FeCl with a concentration of 0.1mol / L 3 Solution and 50mL FeSO with a concentration of 0.1mol / L 4 Mix the solution to get FeCl 3 And FeSO 4 Then, use hydrochloric acid with a concentration of 1mol / L to adjust the pH to 5, and then add an aqueous ammonia solution with a mass concentration of 25% until the mixed solution appears black precipitation, and then continue to stir for 1h to obtain a solid-liquid mixture;

[0029] Under the action of an external magnetic field, the uppe

[0035] Specific embodiment two: This embodiment is different from specific embodiment one in that step one uses a mixture of twice distilled water and ethanol with a volume ratio of twice distilled water and ethanol of 1:1 for washing. Others are the same as the first embodiment.

[0036] Specific embodiment three: This embodiment is different from specific embodiment one in that 100 mL of double distilled water is added in step two. Others are the same as the first embodiment.