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:
“Before I finally went into winter quarters in November, I used to resort to the north- east side of Walden, which the sun, reflected from the pitch pine woods and the stony shore, made the fireside of the pond; it is so much pleasanter and wholesomer to be warmed by the sun while you can be, than by an artificial fire. I thus warmed myself by the still glowing embers which the summer, like a departed hunter, had left.”
—Henry David Thoreau (1817–1862)
“If Americans could understand what a painful, searing experience it is when Negro children first begin to realize that the mere color of their skin is to be the source of a lifelong discrimination, it might do more to end our cruelty toward the Negro than all the preaching on justice and equality.”
—Agnes E. Meyer (1887–1970)
“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)
“Traditional scientific method has always been at the very best 20-20 hindsight. It’s good for seeing where you’ve been. It’s good for testing the truth of what you think you know, but it can’t tell you where you ought to go.”
—Robert M. Pirsig (b. 1928)