A wide range of applications are based on microfluidic devices made of silicone rubbers such as polydimethylsiloxane (PDMS), including materials synthesis, separation and sorting, diagnostics and bioanalysis. The popularity ...
Materials Science
Feb 8, 2019
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5
Introductory chemistry students learn that oil and water repel each other. So do other hydrophobic substances, which carry no electric charge, and hydrophilic substances, which carry an electric charge that allows them to ...
Materials Science
Jul 9, 2013
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0
Lab-on-a-chip devices are microfluidic cells that incorporate pipes, reaction vessels, valves and a host of other implements typically found in laboratories. These components are typically carved into a flat plastic plate ...
Analytical Chemistry
Jul 4, 2013
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0
(Phys.org)—A nanoscale coating that's at least 95 percent air repels the broadest range of liquids of any material in its class, causing them to bounce off the treated surface, according to the University of Michigan engineering ...
Nanomaterials
Jan 16, 2013
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2
(Phys.org)—Researchers have created a new type of miniature pump activated by body heat that could be used in drug-delivery patches powered by fermentation.
Biochemistry
Sep 11, 2012
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0
Professor Keon- Jae Lee's research team, KAIST (Korea), has developed a nanocomposite-based nanogenerator that successfully overcomes the critical restrictions existed in previous nanogenerators and builds a simple, low-cost, ...
Nanomaterials
May 7, 2012
1
1
A new kind of flexible, transparent pressure sensor, developed at the University of California, Davis, for use in medical applications, relies on a drop of liquid.
Analytical Chemistry
Mar 5, 2012
0
1
(PhysOrg.com) -- Physicists Praveen Ashok, Bavishna Praveen, and K. Dholakia working together at the University of St Andrews in Scotland have developed a method for testing whiskey for authenticity using a crafted device ...
(PhysOrg.com) -- Studying chemical modifications in the chromosomes of cells is akin to searching for changes in coiled spaghetti. Scientists at Cornell have figured out how to stretch out tangled strands of DNA from chromosomes, ...
Analytical Chemistry
Oct 31, 2011
0
0
(PhysOrg.com) -- Researchers from the University of Arizona have created a fluid-based opthalmic lens in which the amount of fluid can be constantly adjusted to provide customized eye correction. The lens may one day be incorporated ...
Polydimethylsiloxane (PDMS) belongs to a group of polymeric organosilicon compounds that are commonly referred to as silicones. PDMS is the most widely used silicon-based organic polymer, and is particularly known for its unusual rheological (or flow) properties. PDMS is optically clear, and, in general, is considered to be inert, non-toxic and non-flammable. It is occasionally called dimethicone and is one of several types of silicone oil (polymerized siloxane). Its applications range from contact lenses and medical devices to elastomers; it is present, also, in shampoos (as dimethicone makes hair shiny and slippery), food (anti-foaming agent), caulking, lubricating oils, and heat-resistant tiles.
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