4/2/2015 Experiments reveal how collagen straightens and stretches when pulled | Daily Mail Online
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Up to 150 killed in Nuclear deal Two Queens Apple's first Hooray! You CAN 'Let's hope I don't Could implants give al-Shabaab Easter agreed: Obama women arrested in experiment with a eat fast food after get punched': Girl humans week massacre: says 'historic' ISIS bomb plot: Pair watch was an exercise: Burgers attempts to kiss superpowers? Brain Why your skin is so tough: Revolting Site Web Enter your search experiment reveals how collagen straightens and stretches when pulled Researchers at the Lawrence Berkeley National Laboratory used real skin samples to study microscopic changes that resist tears when pulled apart They found collagen fibres in dermis change structure when under strain The fibres go from being a disorganised tangle to straighten and stretch Scientists hope their findings can help develop new tear-resistant materials
By RICHARD GRAY FOR MAILONLINE
PUBLISHED: 06:10 EST, 1 April 2015 | UPDATED: 08:11 EST, 1 April 2015
21 5 Like Follow shares View comments Daily Mail @dailymailtech http://www.dailymail.co.uk/sciencetech/article-3021302/Why-skin-tough-Revolting-experiments-reveal-collagen-straightens-stretches-pulled.html 1/26 4/2/2015 Experiments reveal how collagen straightens and stretches when pulled | Daily Mail Online
It is probably the most unpleasant experiment you will read about today: what happens when your Follow +1 skin starts to tear. Daily Mail Daily Mail Researchers have uncovered the reason why skin is so difficult to tear even when put under extreme pressures, by cutting samples of real skin and attempting to pull them apart. Today's headlines Most Read They found that rather than simply tearing, mammalian skin actually has sophisticated stress The kamikaze mission that could save resistance properties that prevent holes and cuts from expanding. Earth: Lander to be sent crashing into an asteroid at 14,000mph to see... Seen a ghost? Then you may have inhaled toxic mould: Poor air quality in old buildings may lead to haunting... Why your skin is so tough: Revolting experiment reveals how collagen straightens and stretches when pulled The werewolf of the plant world: Conifer cousin waits for full moon to produce nectar to seduce pollinating... 'War camel' is unearthed in Austrian cellar: Scientists reveal the beast was used by Ottoman Empire in the... Do babies understand PHYSICS? Infants The researchers cut real skin samples and then attempted to rip them by pulling them apart (shown above) are surprised by magic tricks because they understand its basic... Using X-ray beams they were able to directly observe the microscopic changes that take place in skin The implant that could give you to help it resist tearing during their stomach churning experiments. SUPERPOWERS: Brain hack lets rats feel geomagnetic signals - and it may help... SHARE THIS RELATED ARTICLES Apple's first experiment with a watch was an iPhone with a velcro strap: Firm reveals how ARTICLE the project... The perfect SHAVE Bugs breakthrough paves revealed: Scientist way for 'super deodorant': Are 4G speeds getting SLOWER? explains what you... Bacteria... Networks are half as fast promised - and will get worse as more people use... Neanderthals suffered The eye drops that give Close shave for Rosetta: Probe briefly loses from psoriasis too: DNA you NIGHT VISION: Liquid contact with Earth during swoop down to study suggests... solution... investigate comet 67P 21 shares Was the first musical instrument just a chewed bone? Neanderthal ‘flutes’ were They discovered that the curly fibers of collagen that make up dermis of the skin straighten and made by hyenas, study claims stretch in response to a tear to share the load and prevent further damage. Why DO humans have such large penises? Difference in size between men and great The findings help to explain why the thin layer of HOW TO GET THE PERFECT SHAVE cells that cover our bodies is able to provide apes may be a way of keeping... such an effective barrier to the outside world. Scientists at Gillette have spent nine years Mice recognise fear in their friends' faces: Rodents may use expressions to warn Scientists behind the research also hope their studying how to get the perfect shave. others of danger or ask for... findings could eventually lead to stronger new Their work has shown why washing the skin is materials that do not easily tear that could be so vital and why you should never, ever tap Did woolly mammoths die out because of OSTEOPOROSIS? Bone analysis reveals used in aircraft, for example. your razor on the sink, and also settles the beasts were riddled with disease Professor Robert Ritchie, a materials scientist at debate about whether you should go with, or against the grain Facebook launches Riff: App lets you the Lawrence Berkeley National Laboratory in create video montages with friends and Berkeley, California, who was one of the co- Here are their main findings: strangers authors of the research, said: 'Our study is the http://www.dailymail.co.uk/sciencetech/article-3021302/Why-skin-tough-Revolting-experiments-reveal-collagen-straightens-stretches-pulled.html 2/26 4/2/2015 Experiments reveal how collagen straightens and stretches when pulled | Daily Mail Online first to model and directly observe in real time Before the shave, hydrate the hair by MORE HEADLINES the micro-scale behavior of the collagen fibrils washing the skin with a gentle associated with the skin’s remarkable tear cleanser: This softens the hair and resistance. significantly reduces the force needed to cut it. DON'T MISS 'Collagen fibrils and fibers rotate, straighten, Apply plenty of shave gel: This provides a Great British Bake Off stretch and slide to carry load and reduce the protective anti-friction layer and improves razor favourite Ruby Tandoh stresses at the tip of any tear in the skin. glide for a smoother, more comfortable shave. comes out on Twitter... 'The movement of the collagen acts to effectively Shave with a multi-blade razor using light and jokes she's finally diminish stress concentrations associated with strokes: Gillette said the razor should do the putting those Paul any hole, notch or tear.' work, not the person shaving. Hollywood rumours to bed To conduct the experiment the researchers used Change direction: Begin by shaving with the the skin taken from dead rabbits, carefully grain of the hair before switching and going Meet our little prince! removed the hair and placed it in equipment against this grain. Kourtney Kardashian designed to pull the skin apart. shares first picture of Make sure blades are not old or dull: The son Reign Aston on They then cut a small notch or hole in the skin lifespan of razors can vary depending on how Instagram three months and watched how it changed shape as the skin often they are used and how hard. As a after birth was stretched in a way intended to cause the general rule if the razor begins to drag or Has kept him 'secret' tear to increase. doesn't cut as closely as before, replace the blades. 'I can't do this However, rather than getting bigger as the skin anymore!': Desperate tore, the notches simply yawned open. Use aftershave: This can be any product Khloe breaks down containing moisturiser to rehydrate and comfort The researchers, whose work is published in the while pleading with the skin. journal Nature Communications, then used brother Rob to accept the x-ray beams produced by the Advanced Many aftershaves contain alcohol that acts as help on Keeping Up With Light Source at the Lawrence Berkeley National an astringent to sterilise the skin and provide a The Kardashians Laboratory, to study the structural changes that barrier against infection. 'No one would touch took place in the skin. me with a barge pole They found the collagen in the dermis, the thickest of the three main layers that make up skin, because I was on Big changed its alignment at the edge of the tear. Brother': 2006 winner Pete Bennett is now The collagen, which is normally in a disordered tangle, straightened and began to slide against each homeless after battling other to absorb the stress and provide extra strength. addiction to ketamine
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The researchers found the collagen in the skin dermis changes from being a disordered tangle (shown left) to line up in straight parallel rows (shown right) when skin is damaged to provide strength and tear resistance One big happy family! Peter Andre shares Dr Marc Meyers, a materials scientist at the University of California San Diego who also took part in sweet snap of fiancee Emily MacDonagh http://www.dailymail.co.uk/sciencetech/article-3021302/Why-skin-tough-Revolting-experiments-reveal-collagen-straightens-stretches-pulled.html 3/26 4/2/2015 Experiments reveal how collagen straightens and stretches when pulled | Daily Mail Online the research, said: 'Straightening and stretching allow the uptake of strain without much stress larking around with his increase, and sliding allows more energy dissipation during inelastic deformation. children on ski holiday Cute kids 'This reorganization of the fibrils is responsible for blunting the stress at the tips of tears and notches.' Research on skin's mechanical properties dates back nearly 200 years, when physicians began examining stab wounds.
PICTURE EXCLUSIVE: Gwyneth Paltrow slips into a bandeau string bikini during Mexican holiday with estranged husband Chris Martin Clean-living has paid off
'You always feel guilty': Stanley Tucci admits the The graphic above shows what happens to a notch in skin when it is stretched (left) compared to bone (right) tragic death of first wife Kathryn casts a long Unlike bone and teeth, which are also made of collagen fibres but tear and crack when under stress, shadow over marriage the collagen in the skin appears to change its structure when placed under stress. to Felicity Blunt The researchers behind the latest study are working with the US Air Force Office of Scientific Research. From fried insects to Professor Ritchie added: 'Natural inspiration is a powerful motivation to develop new synthetic coffee with BUTTER: The materials with unique properties. weird and wonderful foods we will all be 'For example, the mechanistic understanding we’ve identified in skin could be applied to the eating this summer improvement of artificial skin, or to the development of thin film polymers for applications such as SPONSORED flexible electronics.' Read more: Look away, Alec! Tear resistance of skin in comparison to bone materials. : On the tear resistance of skin : Nature Ireland Baldwin posts Communications : Nature Publishing Group topless photos to Instagram from new racy lingerie shoot... and Share or comment on this article even poses naked from 21 the waist down shares
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Just Dona, Metropolis, United Kingdom, a day ago Smiling James May appears carefree during Given the DM's love of picture articles involving animal and human death and suffering, it's a bit lunch date in central rich to call this 'revolting'. London...as the future of Top Gear hangs in the New Comment Reply Click to rate 25 1 balance Not a care in the world
LeftBlank, somewhere, United Kingdom, a day ago Clocking off! Billie Don't understand what's revolting about stretching some skin taken from a dead rabbit. Faiers and Ferne McCann take a break in quirky outfits for Mad New Comment Reply Click to rate 25 4 Hatters themed TOWIE party David_Winters, Monte Carlo, Monaco, a day ago Getting in party spirit What does 'the perfect shave' have to do with this?
New Comment Reply Click to rate 25 2
Maggie, Shropshire, United Kingdom, a day ago Really? April Fools anyone?
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Just Dona, Metropolis, United Kingdom, about 21 hours ago In the DM, how would you know?
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Dailymail.com gives its verdict on the Apple Watch
Apple's Watch does what Pebble's smartwatch failed at - create a beautiful, elegant device that works as a piece of jewellery, without even switching it on, says US technology editor Mark Prigg in Berlin. 314 comments 2 videos
$99 'morphing' Phorm case adds physical keys to iPad
Californian-built Phorm (pictured) consists of a case and screen protector lined with microfluidics - small amounts of fluid that raises up from the screen when a button on the case is pressed. 4 comments 1 video
Apple iPhone 6 and 6 Plus
MailOnline has spent a week with Apple's new handsets - and found they could change the way we shop - and put clear water between Apple and it's rivals.
633 comments 1 video
The tiny $299 wireless headphones that could mean the end of tangled wires
The Dash headphones are wireless, and even contain their own MP3 player and fitness trackers, and won a best in show award at CES in Las Vegas.
106 comments 1 video
Headphones: Musical Fidelity EB-33
The Musical Fidelity EB-33 in-ear headphones are impressive. They http://www.dailymail.co.uk/sciencetech/article-3021302/Why-skin-tough-Revolting-experiments-reveal-collagen-straightens-stretches-pulled.html 22/26 4/2/2015 Experiments reveal how collagen straightens and stretches when pulled | Daily Mail Online offer a strong performance which more than matches their value - and look good too. comments
Gadget of the week: Orbotix Sphero 2.0
The Sphero 2.0 is a modern Christmas present. In years past you would have had a remote- control racing car running on AA batteries.
1 comment
Gadget review: Snugs fitted earphones
Sound quality is normally the purpose of a headphones review - but not in the case of Snugs, because they can be used on any earphones.
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Gadget of the week: Waka Waka solar powered lamp
The Waka Waka lamp and phone charger is a useful camping tool and something that could be extremely useful in the developing world.
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Gadget review: Tivoli Radio Silenz noise cancelling headphones
The Tivoli Audio Radio Silenz headphones are light, comfortable and portable, which makes them good for travel. They feature stylish wood panels.
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Gadget review: Jawbone Mini Jambox
Fun. That's the first word that comes to mind when reviewing the Jawbone Mini Jambox. As you would expect from a product with mini in its name, it's small.
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Gadget of the week: Philips Wake-up http://www.dailymail.co.uk/sciencetech/article-3021302/Why-skin-tough-Revolting-experiments-reveal-collagen-straightens-stretches-pulled.html 23/26 4/2/2015 Experiments reveal how collagen straightens and stretches when pulled | Daily Mail Online Light can make the mornings easier
Nobody likes getting up in the morning. That's a fact. So spending money on anything that makes it less painful is probably a sound investment.
3 comments
Gadget review: Skullcandy Crusher Headphones
The Crusher does exactly what it says on the tin. Unleash an unrelenting torrent of deep bass through your eardrums. Be warned, these are not for the faint-hearted.
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Gadget review: Klipsch Image X7i in-ear headphones with 3-button control
The Klipsch X7i headphones are nearly perfect. Nearly. The sound is excellent - and in headphones, that's 90 per cent of the battle won. Just some blips hold them back.
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Big Jambox speakers
MailOnline reviews wireless speaker systems to find out which one should soundtrack your summer. Best on show was Jawbone's Big Jambox.
2 comments
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Published by Associated New spapers Ltd Part of the Daily Mail, The Mail on Sunday & Metro Media Group http://www.dailymail.co.uk/sciencetech/article-3021302/Why-skin-tough-Revolting-experiments-reveal-collagen-straightens-stretches-pulled.html 25/26 4/2/2015 Experiments reveal how collagen straightens and stretches when pulled | Daily Mail Online
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