Description

A diffusion cell to model the permeation of salicylate drugs through the skin using lowcost materials and a sensitive colorimetric analytical technique is described. The diffusion apparatus has been used at a further education college by a student for her AS-level Extended Project to investigate the permeation rates of salicylic acid (2-hydroxybenzoic acid), its methyl ester and its sodium salt. The diffusion cell could be used for further investigations including studying other salicylic acid derivatives and/or various salicylic acid topical formulations.

More from this issue

Many science teachers may be unfamiliar with Hooper's rule (sometimes, but incorrectly, referred to as Hooper's hypothesis). The rule...

Jan 2012
Journal Article

Finding an old notice on a canal towpath inspired a consultation with colleagues and search for evidence in an old book to help us look into how...

Jan 2012
Journal Article

The EU as a context for science lessons may be given scant attention but EU decisionmaking is a vital factor in everyday life. Lessons on the...

Jan 2012
Journal Article