![](http://pinterest.com/pin/create/button/?url=https://trecnews4u.blogspot.com/2014/08/kaki-gecko-memegang-petunjuk-untuk.html&media=https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjqexqzQy8ILqsXZcSqZMix0PVW60UY32JBmDcwzEi2_iiC0GmnEvmt-WJLUEs3Ja2HyzGKpzhEPPG3vp7IYDowdJcWahvBYsuyn2gaK5THOYbzuJvgHRAtz1a_gLacpxDob0M6ebV4J3tF/s72-c/120809162706-large.jpg&description=SILAHKAN MENGGUNAKAN " MESIN TRANSLATE "..GOOGLE TRANSLATEÂ DISAMPING KANAN INI............. PLEASE USE ........ " TRA...){kind=link}
DISAMPING KANAN INI.............
PLEASE USE ........ "TRANSLATE MACHINE" .. GOOGLE TRANSLATE BESIDE RIGHT THIS
.................
Kaki Gecko memegang petunjuk untuk menciptakan perban
yang tetap lengket saat basah
Pemahaman
yang lebih baik dari tokek batu mencengkeram dalam kondisi basah dapat
menyebabkan peningkatan bandages dan sutures...............
Gecko feet hold clues to creating bandages that stick when wet
Date:
August 9,
2012
Source:
University of Akron
Summary:
A better understanding of geckos'
gripping power in wet conditions may lead to improvements in bandages and
sutures.
............................
Scientists already know that the tiny hairs on geckos' toe
pads enable them to cling, like Velcro, to vertical surfaces. Now, University
of Akron researchers are unfolding clues to the reptiles' gripping power in wet
conditions in order to create a synthetic adhesive that sticks when moist or on
wet surfaces.
Place a
single water droplet on the sole of a gecko toe, and the pad repels the water.
The anti-wetting property helps explain how geckos maneuver in rainy tropical
conditions. However, saturate that same toe pad in water or drench the surface
on which it climbs, and adhesion slips away, the researchers say.
As
researcher Alyssa Stark, a doctoral candidate in UA's Integrated Bioscience
Program and research team leader explains, geckos don't fall from trees during
downpours in the tropics. What, then, makes them stick? The team hopes to make
that discovery in order to create synthetic materials that hold their grip in
wet environments, such as inside the body, for surgical procedures.
Findings by
Stark, Timothy Sullivan, who received his bachelor's degree in biology in May,
and Peter Niewiarowski, UA professor of biology and integrated bioscience, are
published in the August 9, 2012 issue of The Journal of Experimental Biology.
"We're
gathering many clues about how geckos interact with wet surfaces and this gives
us ideas of how to design adhesives that work under water," says Ali
Dhinojwala, UA department of polymer science chair and Morton professor of
polymer science. "Nature gives us a certain set of rules that point us in
the right direction. They help us understand limitations and how to manipulate
materials."
Stark and
her research team members tested gecko toe hair adhesion in a series of
scenarios: dry toe pads on dry, misted and wet surfaces and soaked toe pads on
dry, misted and wet glass. The soaked toe pads demonstrated low to no adhesion
proportionately with the wetness of the surface on which they were applied and
pulled. Likewise, dry toe pads lost their adhesive grip increasingly with the
amount of water applied to the surface upon which they were pulled. For the
experiments, geckos were pulled on a glass surface by way of a small, gentle
harness placed around their midsections.
"There
were anecdotes before the study that geckos can't stick to wet glass. We now
know it is a bit more complicated than that. What we expect to learn is going
to be relevant to synthetics and ther capabilities to work not only on dry
surfaces, but also wet and maybe, submerged ones," Niewiarowski says.
"This implies a more versatile adhesive capability."
Gecko-inspired
dry adhesive
After close
study of the tiny hairs at the bottom of gecko feet that enable them to cling
to surfaces, Dhinojwala and his colleagues have already developed a dry
synthetic adhesive, composed of carbon nanotubes, that outperforms nature's
variety. Now, with these new findings, Dhinojwala and his colleagues are one
step closer to unfolding the secrets behind gecko toe adhesion in wetness.
The
researchers plan to further study the lizards in their natural habitats and in
laboratory conditions that simulate them. They'll investigate grasping and
release mechanisms, habits of the geckos in wet environments and other factors
that enable the lizards to adhere to surfaces in wetness, such as to trees
during rainfalls.
"Our
goal is to go back and look at what they're doing in nature and at what kind of
surfaces they are walking or running on," says Stark, noting that UA
researchers have already studied such behavior of geckos in Tahiti.
Story
Source:
The above
story is based on materials provided by University of Akron. Note: Materials may be edited
for content and length.
Journal
Reference:
- A. Y. Stark, T. W. Sullivan, P. H. Niewiarowski. The effect of surface water and wetting on gecko adhesion. Journal of Experimental Biology, 2012; 215 (17): 3080 DOI: 10.1242/jeb.070912
T-REC -TUGUMUDA
REPTILES COMMUNITY-INDONESIA
More info :
minat
gabung : ( menerima keanggotaan seluruh kota dan daerah di Indonesia )
08995557626
..................................
KSE –
KOMUNITAS SATWA EKSOTIK – EXOTIC PETS COMMUNITY-- INDONESIA
Visit Our Community and Joint W/
Us....Welcome All Over The World
KSE = KOMUNITAS SATWA
EKSOTIK
MENGATASI KENDALA MINAT DAN JARAK
KAMI ADA DI TIAP KOTA DI INDONESIA
MENGATASI KENDALA MINAT DAN JARAK
KAMI ADA DI TIAP KOTA DI INDONESIA
DETAIL TENTANG KSE-----KLIK : www.komunitassatwaeksotik-pendaftaran.blogspot.com
GABUNG......... ( menerima keanggotaan seluruh kota dan daerah di Indonesia )
HUBUNGI : 089617123865
......................... 