Study of disordered mesoporous silica regarding intrinsic compound affinity to the carrier and drug-accessible surface area
Vorschaubild nicht verfügbar
Autor:innen
Autor:in (Körperschaft)
Publikationsdatum
2023
Typ der Arbeit
Studiengang
Sammlung
Typ
01A - Beitrag in wissenschaftlicher Zeitschrift
Herausgeber:innen
Herausgeber:in (Körperschaft)
Betreuer:in
Übergeordnetes Werk
Molecular Pharmaceutics
Themenheft
DOI der Originalpublikation
Link
Reihe / Serie
Reihennummer
Jahrgang / Band
20
Ausgabe / Nummer
12
Seiten / Dauer
6301-6310
Patentnummer
Verlag / Herausgebende Institution
ACS
Verlagsort / Veranstaltungsort
Auflage
Version
Programmiersprache
Abtretungsempfänger:in
Praxispartner:in/Auftraggeber:in
Zusammenfassung
There is increasing research interest in using mesoporous silica for the delivery of poorly water-soluble drugs that are stabilized in a noncrystalline form. Most research has been done on ordered silica, whereas far fewer studies have been published on using nonordered mesoporous silica, and little is known about intrinsic drug affinity to the silica surface. The present mechanistic study uses inverse gas chromatography (IGC) to analyze the surface energies of three different commercially available disordered mesoporous silica grades in the gas phase. Using the more drug-like probe molecule octane instead of nitrogen, the concept of a “drug-accessible surface area” is hereby introduced, and the effect on drug monolayer capacity is addressed. In addition, enthalpic interactions of molecules with the silica surface were calculated based on molecular mechanics, and entropic energy contributions of volatiles were estimated considering molecular flexibility. These free energy contributions were used in a regression model, giving a successful comparison with experimental desorption energies from IGC. It is proposed that a simplified model for drugs based only on the enthalpic interactions can provide an affinity ranking to the silica surface. Following this preformulation research on mesoporous silica, future studies may harness the presented concepts to guide formulation scientists. © 2023 American Chemical Society.
Schlagwörter
Drug-silica interaction prediction, Inverse gas chromatography, Mesoporous silica carrier, Modeling-based prediction, Monolayer capacity
Fachgebiet (DDC)
600 - Technik, Medizin, angewandte Wissenschaften
Veranstaltung
Startdatum der Ausstellung
Enddatum der Ausstellung
Startdatum der Konferenz
Enddatum der Konferenz
Datum der letzten Prüfung
ISBN
ISSN
1543-8384
1543-8392
1543-8392
Sprache
Englisch
Während FHNW Zugehörigkeit erstellt
Ja
Publikationsstatus
Veröffentlicht
Begutachtung
Peer-Review der ganzen Publikation
Open Access-Status
Closed
Lizenz
Zitation
NIEDERQUELL, Andreas, Barbora VRANÍKOVÁ und Martin KUENTZ, 2023. Study of disordered mesoporous silica regarding intrinsic compound affinity to the carrier and drug-accessible surface area. Molecular Pharmaceutics. 2023. Bd. 20, Nr. 12, S. 6301–6310. DOI 10.1021/acs.molpharmaceut.3c00690. Verfügbar unter: https://irf.fhnw.ch/handle/11654/44034