Characterization and Applications of New Hyper-Cross-Linked Cyclodextrins
Nanosponges are recently developed hyper-cross-linked cyclodextrin polymers nanostructured to form 3-dimensional networks; they are obtained by reacting cyclodextrin with a cross-linker such as carbonyldiimidazole. Nanosponges can be synthesized in neutral or acidic forms, depending in turn on the a...
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Published in | Composite interfaces Vol. 16; no. 1; pp. 39 - 48 |
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Language | English |
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Taylor & Francis Group
01.01.2009
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Abstract | Nanosponges are recently developed hyper-cross-linked cyclodextrin polymers nanostructured to form 3-dimensional networks; they are obtained by reacting cyclodextrin with a cross-linker such as carbonyldiimidazole. Nanosponges can be synthesized in neutral or acidic forms, depending in turn on the agent used as cross-linker. They are solid nanoparticles and can be prepared in crystalline form with spherical shape using an ultrasound-assisted preparation method. The average diameter of a nanosponge is below 1 μm but fractions below 500 nm can be selected. Nanosponges can encapsulate various types of molecules by forming inclusion and non-inclusion complexes. In this study we used dexamethasone as model molecule; up to 35% could be incorporated. Nanosponges could be used to increase aqueous solubility of poorly water-soluble drugs, to remove pollutants from contaminated water, or as nanocarriers for biomedical applications. |
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AbstractList | Nanosponges are recently developed hyper-cross-linked cyclodextrin polymers nanostructured to form 3-dimensional networks; they are obtained by reacting cyclodextrin with a cross-linker such as carbonyldiimidazole. Nanosponges can be synthesized in neutral or acidic forms, depending in turn on the agent used as cross-linker. They are solid nanoparticles and can be prepared in crystalline form with spherical shape using an ultrasound-assisted preparation method. The average diameter of a nanosponge is below 1 μm but fractions below 500 nm can be selected. Nanosponges can encapsulate various types of molecules by forming inclusion and non-inclusion complexes. In this study we used dexamethasone as model molecule; up to 35% could be incorporated. Nanosponges could be used to increase aqueous solubility of poorly water-soluble drugs, to remove pollutants from contaminated water, or as nanocarriers for biomedical applications. |
Author | Trotta, Francesco Cavalli, Roberta |
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Title | Characterization and Applications of New Hyper-Cross-Linked Cyclodextrins |
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