Search: onr:"swepub:oai:DiVA.org:ltu-11617" >
Surface thermodynam...
Surface thermodynamics of mucoadhesive dry powder formulation of zolmitriptan
-
- Alhalaweh, Amjad (author)
- Luleå tekniska universitet,Medicinsk vetenskap
-
- Vilinska, Annamaria (author)
- Luleå tekniska universitet,Industriell miljö- och processteknik
-
- Gavini, Elisabetta (author)
- Department of Drug Sciences, University of Sassari, Sassari, via Muroni 23, 07100, Sassari, Italy
-
show more...
-
- Rassu, Giovanna (author)
- Department of Drug Sciences, University of Sassari, Sassari, via Muroni 23, 07100, Sassari, Italy
-
- Velaga, Sitaram P. (author)
- Luleå tekniska universitet,Medicinsk vetenskap
-
show less...
-
(creator_code:org_t)
- 2011-09-15
- 2011
- English.
-
In: AAPS PharmSciTech. - : Springer Science and Business Media LLC. - 1530-9932. ; 12:4, s. 1186-1192
- Related links:
-
https://europepmc.or...
-
show more...
-
https://urn.kb.se/re...
-
https://doi.org/10.1...
-
show less...
Abstract
Subject headings
Close
- Microparticle powders for nasal delivery were formulated to contain the model drug, zolmitriptan, and varying proportions of different polymers. The objective of the study was to investigate the effects of these formulative parameters on the surface chemistry of the spray-dried microparticles and their potential for adhesion to the tested substrates, porcine mucin, and nasal tissue. The polymers used were chitosans of varying ionization states and molecular weights and hydroxypropyl methyl cellulose. The surface energies of the surfaces of the microparticles were determined using contact angle measurements and the van Oss model. The theory of surface thermodynamics was applied to determine the theoretical potential for the different materials to adhere to the substrates. It was found that the drug or polymers alone, as well as the various formulations, were more likely to adhere to mucin than to nasal tissue. Further, there was a trend for higher molecular weight chitosans to adhere better to the substrates than lower molecular weight chitosans. Similarly, adhesion was improved for formulations with a higher content of polymers. These theoretical predictions may be compared with further experimental results and be of use in making informed decisions on the choice of formulations for future expensive bio-studies.
Subject headings
- MEDICIN OCH HÄLSOVETENSKAP -- Hälsovetenskap -- Annan hälsovetenskap (hsv//swe)
- MEDICAL AND HEALTH SCIENCES -- Health Sciences -- Other Health Sciences (hsv//eng)
Keyword
- Health Science
- Hälsovetenskap
Publication and Content Type
- ref (subject category)
- art (subject category)
Find in a library
To the university's database