Lipscomb I, Pinchin H, Collin R, Harris K, Keevil C. The sensitivity of approved Ninhydrin and Biuret tests in the assessment of protein contamination on surgical steel as an aid to prevent iatrogenic prion transmission. J Hosp Infect. 2006;64:288-92 pubmed
..The application of more sensitive cleanliness evaluation methods should be applied to reduce the risk of iatrogenic transmission of prion disease in 'high-risk' instruments such as neurosurgical devices. ..
Lipscomb I, Pinchin H, Collin R, Harris K, Keevil C. Are surgical stainless steel wires used for intracranial implantation of PrPsc a good model of iatrogenic transmission from contaminated surgical stainless steel instruments after cleaning?. J Hosp Infect. 2006;64:339-43 pubmed
..These results indicate that the application of wires as a realistic means of assessing the removal or inactivation of the prion infectious agent from surgical instruments should be treated with caution. ..