.... To address this, a finite element model of the impact and penetration of a 2 μ m gold particle into the human dermis was developed and calibrated using experiments found in the literature. Using dimensional analysis, the model was linked to a larger scale steel ball-gelatin system in order to extract key...

...Chao Chen; Aili Zhang; Xiaodong Zhang; Jun Hu; Lisa X. Xu Gold nanoparticles have been found to greatly enhance the polymerase chain reaction (PCR) specificity and yield in recent studies. However, the underlying mechanism is still unclear, though different hypotheses have already been proposed...