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- Publications
- Influence
Atomic force microscopy analysis and confocal Raman microimaging of coated pellets.
- Ann Ringqvist, L. Taylor, K. Ekelund, G. Ragnarsson, S. Engström, A. Axelsson
- Chemistry, Medicine
- International journal of pharmaceutics
- 28 November 2003
Polymer-coated pellets with different coating thicknesses have been studied regarding coating morphology and drug release properties with atomic force microscopy (AFM) and confocal Raman microscopy.… Expand
Coated formulations: new insights into the release mechanism and changes in the film properties with a novel release cell.
- M. Marucci, J. Hjärtstam, G. Ragnarsson, Frida Iselau, A. Axelsson
- Chemistry, Medicine
- Journal of controlled release : official journal…
- 19 June 2009
The effect of the blend ratio of water-insoluble ethyl cellulose (EC) and water-soluble hydroxypropyl cellulose (HPC-LF), on the properties of sprayed films and on the drug release mechanism of… Expand
Is the full potential of the biopharmaceutics classification system reached?
- Christel A.S. Bergström, Sara B.E. Andersson, Jonas H. Fagerberg, G. Ragnarsson, A. Lindahl
- Chemistry, Medicine
- European journal of pharmaceutical sciences…
- 16 June 2014
In this paper we analyse how the biopharmaceutics classification system (BCS) has been used to date. A survey of the literature resulted in a compilation of 242 compounds for which BCS classes were… Expand
Review article: Targeted drug delivery in treatment of intestinal diseases
- M. Wikberg, J. Ulmius, G. Ragnarsson
- Medicine
- Alimentary pharmacology & therapeutics
- 1 December 1997
Topical therapy within the treatment of intestinal diseases presents realistic formulation challenges for targeted drug delivery. Some relevant oral formulation concepts are reviewed. The basic… Expand
Osmotic pumping release from ethyl-hydroxypropyl-cellulose-coated pellets: a new mechanistic model.
- M. Marucci, G. Ragnarsson, Bernt Nilsson, A. Axelsson
- Materials Science, Medicine
- Journal of controlled release : official journal…
- 25 February 2010
A new mechanistic model of drug release by osmotic pumping and diffusion from pellets coated with a semipermeable film developing pores created by the leaching of water-soluble compounds initially… Expand
Compressibility and tablet properties of two polymorphs of metoprolol tartrate.
- G. Ragnarsson, J. Sjoegren
- Chemistry, Medicine
- Acta pharmaceutica Suecica
- 1984
Determination of a diffusion coefficient in a membrane by electronic speckle pattern interferometry: a new method and a temperature sensitivity study
- M. Marucci, Sven-Göran Pettersson, G. Ragnarsson, A. Axelsson
- Chemistry
- 19 April 2007
In this work, a method has been developed to easily determine the effective diffusion coefficient (De) of a solute in a permeable membrane using electronic speckle pattern interferometry. Fringes are… Expand
Ethanol effects on apparent solubility of poorly soluble drugs in simulated intestinal fluid.
- Jonas H. Fagerberg, Y. Al-Tikriti, G. Ragnarsson, C. Bergström
- Chemistry, Medicine
- Molecular pharmaceutics
- 20 June 2012
Ethanol intake can lead to an unexpected and possibly problematic increase in the bioavailability of druglike compounds. In this work we investigated the effect of ethanol on the apparent solubility… Expand
Work of friction and net work during compaction
- G. Ragnarsson, J. Sjoegren
- Medicine, Materials Science
- The Journal of pharmacy and pharmacology
- 1 April 1983
Series of tablets were compressed in a reciprocating tablet machine with a gradually increasing die wall friction. The force needed on the upper punch to maintain the tablet dimensions constant… Expand