Hyaluronic-acid-modified lipid-polymer hybrid nanoparticles as an efficient ocular delivery platform for moxifloxacin hydrochloride was written by Liu, Dan;Lian, Yunfei;Fang, Qiuyu;Liu, Lu;Zhang, Jundong;Li, Juan. And the article was included in International Journal of Biological Macromolecules in 2018.Reference of 923-61-5 The following contents are mentioned in the article:
To improve the ocular bioavailability of the strongly hydrophilic moxifloxacin hydrochloride, hyaluronic-acid-modified lipid-polymer hybrid nanoparticles (HA-LCS-NPs) were designed and characterized. An in vivo precorneal retention study in rabbits showed that the mean residence time (MRT) and area under the curve (AUC0-6h) of HA-LCS-NPs were up to 6.74-fold and 4.29-fold higher than those of the com. product. An in vitro corneal penetration study in rabbits demonstrated that the apparent permeability coefficient (Papp) of HA-LCS-NPs was increased by 3.29-fold compared to the com. product, which might be observed because the surface-modified hyaluronic acid could expedite the cellular uptake of HA-LCS-NPs by receptor-mediated endocytosis. Moreover, in contrast with other formulations, the results of ex vivo fluorescence imaging showed that the fluorescence intensity was higher in the cornea and conjunctiva after administration of HA-LCS-NPs. Finally, an ocular irritation study indicated that HA-LCS-NPs displayed excellent ocular tolerance. In summary, the hyaluronic-acid-modified lipid-polymer hybrid nanoparticles with multifunctional properties might be a promising ocular drug delivery system for prolonged precorneal retention, better corneal permeability and enhanced ocular bioavailability. This study involved multiple reactions and reactants, such as (2R)-3-(((2-Aminoethoxy)(hydroxy)phosphoryl)oxy)propane-1,2-diyl dipalmitate (cas: 923-61-5Reference of 923-61-5).
(2R)-3-(((2-Aminoethoxy)(hydroxy)phosphoryl)oxy)propane-1,2-diyl dipalmitate (cas: 923-61-5) belongs to alcohols. Similar to water, an alcohol can be pictured as having an sp3 hybridized tetrahedral oxygen atom with nonbonding pairs of electrons occupying two of the four sp3 hybrid orbitals. Secondary alcohols are easily oxidized without breaking carbon-carbon bonds only as far as the ketone stage. No further oxidation is seen except under very stringent conditions.Reference of 923-61-5
Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts