Avancerad sökning

Hittade 2 avhandlingar som matchar ovanstående sökkriterier.

1. 1. Interfacial and material aspects of powders with relevance to pharmaceutical tableting performance

   Författare :Maria Badal Tejedor; Mark W. Rutland; William Ducker; KTH; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; atomic force microscopy; excipients; surface characterization; tableting; milling; amorphisation; Kemi; Chemistry;

   Sammanfattning : Tablets are the most common forms of drug administration. They are convenient to administer and easy to manufacture. However, problems associated with the adhesion of the powders to the tableting tools are common. This phenomenon is known as sticking and even though it has been well documented and studied, it remains poorly understood. LÄS MER

3. 2. Interactions of cellulose and model surfaces

   Författare :Johanna Stiernstedt; Mark Rutland; William Ducker; KTH; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Surface and colloid chemistry; Yt- och kolloidkemi;

   Sammanfattning : The focus of this thesis is fundamental surface force and friction studies of silica and cellulose surfaces, performed mainly with the atomic force microscope (AFM). The normal interactions between model cellulose surfaces have been found to consist of a longer range double layer force with a short range steric interaction, the nature of which is extensively discussed. LÄS MER