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Lipid DNA nanoparticles exhibit an intrinsic affinity to the ocular surface and can be loaded with travoprost by hybridizing an aptamer that binds the medication. In travoprost-loaded nanoparticles, the drug is bound by specific, non-covalent interactions, not requiring any chemical modification of the active pharmaceutical ingredient. Fluorescently labeled travoprost-loaded nanoparticles show a long-lasting adherence to the eye, up to sixty minutes after eye drop instillation. Biosafety of the nanoparticles was proved in vivo. Ex vivo and in vivo quantification of travoprost via LC-MS revealed that the nanoparticles deliver at least twice the amount of the drug at every time-point investigated compared to the pristine drug. The data successfully show the applicability of a DNA-based drug delivery system in the field of ophthalmology for the treatment of glaucoma.
Fig. 2 Preparation and characterization of travoprost-loaded nanoparticles. (Schnichels S.; et al. 2020)
References
Cat NO.: API100986865-1
CAS NO.: 100986-86-5
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