New Skin? A Plastic That Heals Itself, Conducts Electricity, and is Sensitive To Touch
Skin is a material with astonishing capabilities: the flexible, waterproof layer constantly regenerates itself, heals itself after scratches and cuts, and, through its nerves, conducts electricity, relaying the sense of touch to the brain. Engineers have long been trying to come up with a synthetic polymer that does all those things, and does them under standard conditions rather than the carefully calibrated set-up of a lab. Now engineers have created a polymer with a combination of skin’s most elusive attributes that no polymer had achieved before: This new material, reported in Nature Nanotechnology, can conduct electricity and, when it is sliced open with a razor, can heal itself at room temperature.
The material can come back together thanks to the hydrogen bonds, which break and reform easily and reversibly, connecting its molecules. Due to the addition of nickel particles, it can also conduct electricity. The researchers found that after the material was cut open, it regained 90 percent of its electrical conductivity within 15 seconds. What’s more, the material’s electrical resistance changes in response to pressure—giving this synthetic skin what is, essentially, a sense of touch. The material may eventually be used to make touch-sensitive prosthetic limbs. Meanwhile, the resilient, conductive material should aid in the development of better on-skin electronic devices, such as wearable heart-rate monitors.
Mystery of Bizarre Duck-Like Ocean Sound 2014 04 23 If it quacks like a duck... it’s not always a duck.
Scientists have reportedly gotten to the bottom of the mysterious ’Bio-Duck’ sound in the Antarctic.
Here’s a recording of the strange sound (it’s kind of a stretch to say it sounds like a duck, but who are we to second guess the biologists?).
Mystery of Bizarre Duck-Like Ocean Sound Solved
By Tanya Lewis ...
’Extreme’ Carbon Dioxide Reduction will be a Death Sentence for Humanity & Planet Earth 2014 04 23 If we allow a fraudulent pseudo-environmentalist cult to control every aspect of our lives then our children are doomed to a totalitarian existence which Stalin could only have dreamed of.
“The common enemy of humanity is man.
In searching for a new enemy to unite us, we came up with the idea that pollution, the threat of global warming, water shortages, famine ...
Agenda 21: The BLM Land Grabbing Endgame 2014 04 23 Why is the federal government so obsessed with grabbing more land? After all, the federal government already owns more than 40 percent of the land in 9 different U.S. states.
Why are federal bureaucrats so determined to grab even more? Well, the truth is that this all becomes much clearer once you understand that there is a ...
Fukushima radiation killing children, government hiding the truth 2014 04 22 Katsutaka Idogawa, former mayor of Futaba, a town near the disabled Fukushima nuclear plant, is warning his country that radiation contamination is affecting Japan’s greatest treasure - its children.
Asked about government plans to relocate the people of Fatuba to the city of Iwaki, inside the Fukushima prefecture, Idogawa criticized the move as a "violation of human rights."
Compared with Chernobyl, radiation ...
Why your fingerprints may not be unique 2014 04 22 Assumption that everyone has a unique fingerprint from which they can be identified through a computer database is flawed, says Home Office expert Mike Silverman
Fingerprint evidence linking criminals to crime scenes has played a fundamental role in convictions in Britain since the first forensic laboratory was set up in Scotland Yard in 1901.
But the basic assumption that everyone has a ...