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82:, which are weak electric forces generated between two atoms or molecules that are very close to each other. So far there is little evidence to support nano tape being recyclable in the same way as plastic bottles, but it is reusable. More data is needed to know how environmentally safe nano tape is.
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Nano tapes mimic these structures with carbon nanotube bundles, which simulate setae, and individual nanotubes, which simulate spatulas, to achieve macroscopic shear adhesion and to translate the weak van der Waals interactions into high shear forces. The shear adhesion allows the tape to be easily
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The result of this "gecko tape" was tested by attaching a sample to the hand of a 15 cm high plastic Spider-Man figure weighing 40 g, which enabled it to stick to a glass ceiling, as is shown in the figure. The tape, which had a contact area of around 0.5 square centimetres (50 mm)
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as a substrate, but found that the tape's adhesive power increased by almost 1,000 times if they used a soft bonding substrate such as Scotch tape. This is because the flexible substrate yields a much higher ratio of the number of setae in contact with the surface over the total number of setae.
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that is useful for hanging lightweight items such as pictures and decorative items on smooth walls without punching holes in the wall. Using superaligned carbon nanotubes, some nano tapes can stay sticky in extreme temperatures.
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with the glass, was able to carry a load of more than 100 grams (3.5 oz). However, the adhesion coefficient was only 0.06, which is low compared with real geckos (8~16).
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peeled off, in the manner a gecko lifts its foot. Since the carbon nanotube arrays leave no residue on the substrate, the tape can be reused many times.
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show a remarkable ability to climb smooth vertical surfaces at high speeds, exhibiting both strong attachment and easy rapid removal, or
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128:, and the Institute for Microelectronics Technology in Russia. Work started in 2001 and two years later results were published in
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The group prepared flexible fibers of polyimide as the synthetic setae structures on the surface of a 5
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Philosophical
Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences
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453:, Zhukov, A.A. and Shapoval, S.Y. (2003), "Microfabricated adhesive mimicking gecko foot-hair",
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Ge, Liehui; Sethi, Sunny; Ci, Lijie; Ajayan, Pulickel M.; Dhinojwala, Ali (2007-06-26).
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transferred onto a backing material of flexible polymer tape. These arrays are called
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thick film of the same material using electron beam lithography and
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280:"Carbon nanotube tape stays sticky in extreme temperatures"
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On a gecko's foot, micrometer-sized elastic hairs called
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104:are split into nanometer-sized structures called
389:Proceedings of the National Academy of Sciences
124:, which arose from a collaboration between the
120:Nano tape is one of the first developments of
385:"Carbon nanotube-based synthetic gecko tapes"
330:"Gecko adhesion: evolutionary nanotechnology"
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328:Autumn, Kellar; Gravish, Nick (2008-05-13).
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256:Bourzacarchive, Katherine (2008-10-09).
160:Commercial nano tape is usually sold as
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31:Nano tape used to hang household items.
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449:, Dubonos, S.V., Grigorieva, I.V.,
209:Micro and nano view of gecko's toe
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23:Commercially available nano tape.
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141:dry etching in an oxygen plasma
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297:Autumn, Kellar (2006-01-01).
286:. American Chemical Society.
278:Nanowerk News (2019-07-10).
197:Close view of a gecko's foot
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42:; marketed under the name
97:adhesion, of their feet.
185:climbing a glass surface
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410:10.1073/pnas.0703505104
221:Micro view of nano tape
16:Synthetic adhesive tape
354:10.1098/rsta.2007.2173
299:"How Gecko Toes Stick"
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262:MIT Technology Review
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80:van der Waals forces
401:2007PNAS..10410792G
395:(26): 10792–10795.
346:2008RSPTA.366.1575A
340:(1870): 1575–1590.
315:10.1511/2006.58.124
284:Nanowerk Newsletter
303:American Scientist
237:test" of nano tape
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258:"Sticky Nanotape"
162:double-sided tape
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494:Carbon nanotubes
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64:toes of a gecko
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484:Biomimetics
86:Explanation
479:Biophysics
468:Categories
447:Geim, A.K.
309:(2): 124.
243:References
235:Spider-Man
78:, but via
68:biomimicry
40:gecko tape
76:adhesives
36:Nano tape
429:17578915
370:16412336
362:18192170
106:spatulas
72:adhesion
420:1904109
397:Bibcode
342:Bibcode
169:Gallery
116:History
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91:Geckos
70:. The
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183:Gecko
102:setae
95:shear
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415:PMC
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