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Christoforidou, Theodora; Giasafaki, Dimitra; Andriotis, Eleftherios G; Bouropoulos, Nikolaos; Theodoroula, Nikoleta F; Vizirianakis, Ioannis S; Steriotis, Theodore; Charalambopoulou, Georgia; Fatouros, Dimitrios G
International journal of molecular sciences, 02/2021, Letnik: 22, Številka: 4Journal Article
Two different types of ordered mesoporous nanoparticles, namely MCM-41 and MCM-48, with similar pore sizes but different pore connectivity, were loaded with aprepitant via a passive diffusion method. The percentage of the loaded active agent, along with the encapsulation efficiency, was evaluated using High-performance Liquid Chromatography (HPLC) analysis complemented by Thermogravimetric Analysis (TGA). The determination of the pore properties of the mesoporous particles before and after the drug loading revealed the presence of confined aprepitant in the pore structure of the particles, while Powder X-ray Diffractometry(pXRD), Differential Scanning Calorimetry (DSC), and FTIR experiments indicated that the drug is in an amorphous state. The release profiles of the drug from the two different mesoporous materials were studied in various release media and revealed an aprepitant release up to 45% when sink conditions are applied. The cytocompatibility of the silica nanoparticles was assessed in Caco-2 cell monolayers, in the presence and absence of the active agent, suggesting that they can be used as carriers of aprepitant without presenting any toxicity in vitro.
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JCR | SNIP | JCR | SNIP | JCR | SNIP | JCR | SNIP |
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