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:
“When I hear the hypercritical quarreling about grammar and style, the position of the particles, etc., etc., stretching or contracting every speaker to certain rules of theirs ... I see that they forget that the first requisite and rule is that expression shall be vital and natural, as much as the voice of a brute or an interjection: first of all, mother tongue; and last of all, artificial or father tongue. Essentially your truest poetic sentence is as free and lawless as a lamb’s bleat.”
—Henry David Thoreau (1817–1862)
“Western hospitality prevails; it is reminiscent of the kind displayed earlier here by a host who said to an unexpected guest, “Stranger, you take the wold skin and the chaw o’ sowbelly—I’ll rough it.””
—Administration in the State of Texa, U.S. public relief program (1935-1943)
“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)
“No testing has overtaken you that is not common to everyone. God is faithful, and he will not let you be tested beyond your strength, but with the testing he will also provide the way out so that you may be able to endure it.”
—Bible: New Testament, 1 Corinthians 10:13.