id author title date pages extension mime words sentences flesch summary cache txt cord-262442-kjgpriow Scalia, Santo Quercetin solid lipid microparticles: A flavonoid for inhalation lung delivery 2013-05-13 .txt text/plain 5525 310 53 The quercetin SLMs were characterised for morphology, drug loading (15.5% ± 0.6, which corresponded to an encapsulation efficiency of 71.4%), particle size distribution, response to humidity, crystallinity, thermal behaviour and in vitro respirable fraction. Furthermore, the toxicity and the in vitro transport of the SLMs on an air liquid interface model of the Calu-3 cell line were also investigated using a modified twin-stage impinger apparatus. RESULTS: Results showed that quercetin SLMs could be formulated as dry powder suitable for inhalation drug delivery (20.5 ± 3.3% fine particle fraction ⩽4.46 μm) that was absorbed, via a linear kinetic model across the Calu-3 monolayer (22.32 ± 1.51% over 4 h). A modified in vitro aerosol testing apparatus (twin stage impinger TSI, Radleys, Essex, UK) that allows the attachment of a Transwell containing Calu-3 epithelial cells was used to study the mechanis m of drug deposition, dissolution and diffusion/transp ort (Haghi et al., 2010 (Haghi et al., , 2012 . ./cache/cord-262442-kjgpriow.txt ./txt/cord-262442-kjgpriow.txt