Artificial Microfluidic Skin For in Vitro Perspiration Simulation and Testing
An artificial skin has also been recently demonstrated at the University of Cincinnati for in-vitro sweat simulation and testing, capable of skin-like texture, wetting, sweat pore-density, and sweat rates. The sweat simulator employs a simple bi-layer membrane design to resolve all drawbacks associated with use of commercial membranes. A bottom 0.2 µm track etched polycarbonate membrane layer provides flow-rate control by creating a pressure drop and therefore a constant sweat flow. A top photo-curable layer provides skin-like features such as sweat pore density, hydrophobicity, and wetting hysteresis. Key capabilities of this sweat simulator include: constant ‘sweat’ rate density without bubble-point variation even down to ~1 L/hr/m2; replication of the 2 pores/mm2 pore-density and the ~50 µm texture of human skin; simple gravity-fed flow control; low-cost and disposable construction.
Read more about this topic: Artificial Skin
Famous quotes containing the words artificial, skin, simulation and/or testing:
“There is natural ignorance and there is artificial ignorance. I should say at the present moment the artificial ignorance is about eighty-five per cent.”
—Ezra Pound (1885–1972)
“An old man, sir, and his wits are not so blunt as, God help, I would desire they were; but, in faith, honest as the skin between his brows.”
—William Shakespeare (1564–1616)
“Life, as the most ancient of all metaphors insists, is a journey; and the travel book, in its deceptive simulation of the journey’s fits and starts, rehearses life’s own fragmentation. More even than the novel, it embraces the contingency of things.”
—Jonathan Raban (b. 1942)
“Today so much rebellion is aimless and demoralizing precisely because children have no values to challenge. Teenage rebellion is a testing process in which young people try out various values in order to make them their own. But during those years of trial, error, embarrassment, a child needs family standards to fall back on, reliable habits of thought and feeling that provide security and protection.”
—Neil Kurshan (20th century)