Double-response drug release MOFs@IBU nanofiber transdermal slow-release material as well as preparation method and application thereof
A nanofiber and sustained-release material technology, applied in the field of biomedical materials, can solve problems such as side effects and severe gastrointestinal problems, and achieve the effects of less side reactions, single product, and simple and easy-to-control reaction conditions.
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Embodiment 1
[0041] A method for preparing a MOFs@IBU nanofiber transdermal sustained-release material with dual response drug release, comprising steps:
[0042] (1) Weigh 0.0505g ligand 4,4'-((4-(4H-1,2,4-triazol-4-yl)benzene)azodiacyl)dibenzoic acid, 0.074g hexahydrate Zinc nitrate and 0.0505g ibuprofen crude drug are dissolved in the mixed solvent of the pure water of 30ml and N, N-dimethylformamide (DMF) (pure water: N, N-dimethylformamide (DMF)= 1:1 (v / v)), and add diethanolamine (DEA) 150uL, mix well. After standing at room temperature for 24 hours, it was centrifuged and filtered, washed three times with DMF, and vacuum-dried at 63 °C to obtain a brown powder solid, that is, MOFs@IBU solid. The microscopic morphology of the obtained MOFs@IBU is a flower-shaped structure with a particle size of 90-400 nm.
[0043] (2) Weigh 0.7g of polyacrylonitrile (PAN, weight average molecular weight Mw=85000) and dissolve it in 10ml of N,N-dimethylformamide (DMF) to make a solution. Add 0.028...
Embodiment 2
[0046] A method for preparing a MOFs@IBU nanofiber transdermal sustained-release material with dual response drug release, comprising steps:
[0047] (1) Weigh 0.0505g ligand 4,4'-((4-(4H-1,2,4-triazol-4-yl)benzene)azodiacyl)dibenzoic acid and 0.0555g hexahydrate Zinc nitrate and 0.0505g ibuprofen crude drug are dissolved in the mixed solvent of the pure water of 30ml and N, N-dimethylformamide (DMF) (pure water: N, N-dimethylformamide (DMF)= 1:1 (v / v)), and add 140uL of diethanolamine (DEA), mix well. Stand at room temperature for 24 h, then centrifuge filter, wash with DMF three times, and vacuum-dry at 68 °C to obtain a brown powder solid, that is, MOFs@IBU solid. figure 1 For the SEM photographs of the resulting MOFs@IBU, from figure 1 It can be seen that the prepared MOFs@IBU has a flower-shaped structure with a size of about 90-300nm.
[0048] (2) Weigh 0.7g of polyacrylonitrile (PAN, weight average molecular weight Mw=150000) and dissolve it in 10ml of N,N-dimethylfo...
Embodiment 3
[0051] A method for preparing a MOFs@IBU nanofiber transdermal sustained-release material with dual response drug release, comprising steps:
[0052] (1) Weigh 0.0505g ligand 4,4'-((4-(4H-1,2,4-triazol-4-yl)benzene)azodiacyl)dibenzoic acid and 0.074g hexahydrate Zinc nitrate and 0.101g ibuprofen crude drug are dissolved in the mixed solvent of pure water and N,N-dimethylformamide (DMF) of 30ml (pure water: N,N-dimethylformamide (DMF)= 1:1 (v / v)), and add diethanolamine (DEA) 150uL, mix well. After standing at room temperature for 24 h, it was centrifuged and filtered, washed three times with DMF, and vacuum-dried at 70 °C to obtain a brown powder solid, that is, MOFs@IBU solid. figure 2 For the SEM photographs of the resulting MOFs@IBU, from figure 2 It can be seen that the prepared MOFs@IBU has a flower-shaped structure with a size of about 90-300nm.
[0053] (2) Weigh 0.7g of polyacrylonitrile (PAN, weight average molecular weight Mw=150000) and dissolve it in 10ml of N...
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