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Easy DIY Gecko Tape
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Luminosa Renzullo
Dec 23, 2023, 10:01:31 AM12/23/23
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The way geckos stick to surfaces is through the use of nano-scale hairs on their feet. These hairs dramatically increase the surface area of contact between the gecko and the surface in question. This allows the usually-small intermolecular forces to stack up and keep the gecko adhered.
Easy DIY Gecko Tape
DOWNLOAD https://t.co/EhiVspcb9O
Nano tape, also called gecko tape; marketed under the name Alien Tape, is a synthetic adhesive tape consisting of arrays of carbon nanotubes transferred onto a backing material of flexible polymer tape. These arrays are called synthetic setae and mimic the nanostructures found on the toes of a gecko; this is an example of biomimicry. The adhesion is achieved not with chemical adhesives, but via van der Waals forces, which are weak electric forces generated between two atoms or molecules that are very close to each other.[1][2]
On a gecko's foot, micrometer-sized elastic hairs called setae are split into nanometer-sized structures called spatulas. The shear adhesion is achieved by forming and breaking van der Waals forces between these microscopic structures and the substrate.[4]
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 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.[5]
Nano tape is one of the first developments of synthetic setae, which arose from a collaboration between the Manchester Centre for Mesoscience and Nanotechnology, and the Institute for Microelectronics Technology in Russia. Work started in 2001 and two years later results were published in Nature Materials.[6]
The group prepared flexible fibers of polyimide as the synthetic setae structures on the surface of a 5 μm thick film of the same material using electron beam lithography and dry etching in an oxygen plasma. The fibres were 2 μm long, with a diameter of around 500 nm and a periodicity of 1.6 μm, and covered an area of roughly 1 cm2 (see figure on the left). Initially, the team used a silicon wafer 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.[citation needed]
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 mm2) 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 (816).[citation needed]
Commercial nano tape is usually sold as double-sided tape 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.[2]
Geckos use millions of adhesive setae on their toes to climb vertical surfaces at speeds of over 1 m s(-1). Climbing presents a significant challenge for an adhesive since it requires both strong attachment and easy, rapid removal. Conventional pressure-sensitive adhesives are either strong and difficult to remove (e.g. duct tape) or weak and easy to remove (e.g. sticky notes). We discovered that the energy required to detach adhering tokay gecko setae (W(d)) is modulated by the angle (theta) of a linear path of detachment. Gecko setae resist detachment when dragged towards the animal during detachment (theta = 30 degrees ) requiring W(d) = 5.0+/-0.86(s.e.) J m(-2) to detach, largely due to frictional losses. This external frictional loss is analogous to viscous internal frictional losses during detachment of pressure-sensitive adhesives. We found that, remarkably, setae possess a built-in release mechanism. Setae acted as springs when loaded in tension during attachment and returned elastic energy when detached along the optimal path (theta=130 degrees ), resulting in W(d) = -0.8+/-0.12 J m(-2). The release of elastic energy from the setal shaft probably causes spontaneous release, suggesting that curved shafts may enable easy detachment in natural, and synthetic, gecko adhesives.
Prof. Kellar Autumn of Lewis and Clark College (Oregon)has identified 7key properties for gecko adhesives. The polypropylenegecko adhesive is the first synthetic gecko adhesive to demonstrate 5of these 7 properties in a single material:
The Magic Gecko Tape is designed to be the most reliable, useful and strong tool for sticking items. Inspired by the gecko, we used advanced technology to create a strong and reliable tape that is has the best quality and value for money.
We are a team of passionate DIY lovers who came together to reinvent what an adhesive tape can do.
We know that using adhesive tapes can be a sticky mess. Sometimes it doesn't hold things up well. Other times, removing the tape would take with it parts of your wall or paint and leave a sticky mark behind. What's more, they are all single use.
I tried to test the claims of this tape by hanging a bookshelf filled with books on the wall. Amazingly, after 2 weeks, it is still holding strong. I've also hung up a canvas print on the wall and that's also staying put. I would definitely buy more.
Synth. Gecko is a thick, durable, shock absorbing bar tape made with 100% silicone foam. Available in nine colors, there is sure to be one that will fit the color scheme of your machine.
The subtle pavé pattern of the tape provides a surface texture to improve tactile feel and grip. The additional grip is beneficial, particularly on blistering hot days when palms get sweaty, or during the occasional downpour. The natural texture of silicone foam is comparable to brake hoods; it is tacky, squishy but firm, while also providing excellent vibration dampening.
This hands-on activity will guide you in making a synthetic gecko tape with micron sized hairs that mimics that behavior of the gecko foot. The process is called "nanomolding." Also described is an easy setup using Legos for testing how much weight the gecko tape can hold. Significant amount of research is ongoing in the field of synthetic Gecko tape due to its wide variety of applications. This program gives a glimpse of one of the methods used by researchers for making a synthetic gecko tape and its properties.
The toes of a gecko are divided into nanoscale hair-like structures. When a gecko places its foot on the wall and curls its toes, these nanoscale structures interact with the wall on the atomic level. The forces (van-der-waals forces) between the nano-structured hairs of the gecko foot and the atoms of the wall are strong enough to hold up the gecko. Scientists are working to make materials that use gecko-like nano-structures for adhesion.
The Arundel Bicycle Company specialises in bottle cages, but they also offer two types of bar tape: Cork and Gecko. Both are available in black, white, red, blue and yellow. Arundel products are supplied by Artisan Cycles in Albert Park.
Cork bar tapes like the Arundel Cork have been around for a long time. I have often thought about putting on some yellow bar tape to match my frame, but hesitated because of worries about discolouration from my black mitts which seem to stain anything that comes in contact with them. Arundel however, claim their bar tape is easy to clean, so it was time to give the Arundel Cork bar tape in yellow a try.
Opening the box you find two rolls of tape, two pieces of the above mentioned black finishing tape and two bar end plugs with the Arundel logo of an old stone castle, namely Arundel Castle in West Sussex, England.
The colour was not a perfect match for my frame but it was near enough and certainly changed the appearance of the bike. On the road I could not discern any difference from the Cinelli tape in either grippiness or softness. It only took a few hours riding in fine weather for the inevitable staining from my mitts to occur, but a quick wipe with a damp sponge was enough to clean off the stains. The speckled look from the cork may also have helped hide any lighter staining but it looked clean to my eye.
The tape got a better workout by accident while I was doing some maintenance and grabbed the handlebars with my greasy hands. Wiping with a damp sponge was not enough, but a spray with mild cleaning liquid and a wipe with a sponge did the job. I had occasion to re-wrap some of the tape and underneath was brighter in colour but without that contrast the discolouration was of no concern.
The Arundel Gecko tape is a new style of tape that that offers a better grip than cork. The Gecko tape is made of foam and polyurethane with a dimpled surface. The one I tested was black and the colour is uniform.
It is a bit thinner than the Cork and feels very different. Interestingly, the Gecko comes with two pieces of bar tape about 8cm long, already cut to fit around the brake levers. The box has the same fitting instructions as the Cork tape and the same warning about the adhesive applies. As with the Cork tape I had no problems wrapping it on. I took the bike for a longish ride with the Gecko tape on one side and my older tape on the other to provide a direct comparison. The Gecko felt slightly grippier with my gloves on, but the real difference was when I was riding bare handed. In the drops, putting some power down, I found the feel of the Gecko grip to be very comfortable and easier to maintain a tight hold of.
0aad45d008
Easy DIY Gecko Tape
DOWNLOAD https://t.co/EhiVspcb9O
Nano tape, also called gecko tape; marketed under the name Alien Tape, is a synthetic adhesive tape consisting of arrays of carbon nanotubes transferred onto a backing material of flexible polymer tape. These arrays are called synthetic setae and mimic the nanostructures found on the toes of a gecko; this is an example of biomimicry. The adhesion is achieved not with chemical adhesives, but via van der Waals forces, which are weak electric forces generated between two atoms or molecules that are very close to each other.[1][2]
On a gecko's foot, micrometer-sized elastic hairs called setae are split into nanometer-sized structures called spatulas. The shear adhesion is achieved by forming and breaking van der Waals forces between these microscopic structures and the substrate.[4]
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 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.[5]
Nano tape is one of the first developments of synthetic setae, which arose from a collaboration between the Manchester Centre for Mesoscience and Nanotechnology, and the Institute for Microelectronics Technology in Russia. Work started in 2001 and two years later results were published in Nature Materials.[6]
The group prepared flexible fibers of polyimide as the synthetic setae structures on the surface of a 5 μm thick film of the same material using electron beam lithography and dry etching in an oxygen plasma. The fibres were 2 μm long, with a diameter of around 500 nm and a periodicity of 1.6 μm, and covered an area of roughly 1 cm2 (see figure on the left). Initially, the team used a silicon wafer 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.[citation needed]
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 mm2) 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 (816).[citation needed]
Commercial nano tape is usually sold as double-sided tape 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.[2]
Geckos use millions of adhesive setae on their toes to climb vertical surfaces at speeds of over 1 m s(-1). Climbing presents a significant challenge for an adhesive since it requires both strong attachment and easy, rapid removal. Conventional pressure-sensitive adhesives are either strong and difficult to remove (e.g. duct tape) or weak and easy to remove (e.g. sticky notes). We discovered that the energy required to detach adhering tokay gecko setae (W(d)) is modulated by the angle (theta) of a linear path of detachment. Gecko setae resist detachment when dragged towards the animal during detachment (theta = 30 degrees ) requiring W(d) = 5.0+/-0.86(s.e.) J m(-2) to detach, largely due to frictional losses. This external frictional loss is analogous to viscous internal frictional losses during detachment of pressure-sensitive adhesives. We found that, remarkably, setae possess a built-in release mechanism. Setae acted as springs when loaded in tension during attachment and returned elastic energy when detached along the optimal path (theta=130 degrees ), resulting in W(d) = -0.8+/-0.12 J m(-2). The release of elastic energy from the setal shaft probably causes spontaneous release, suggesting that curved shafts may enable easy detachment in natural, and synthetic, gecko adhesives.
Prof. Kellar Autumn of Lewis and Clark College (Oregon)has identified 7key properties for gecko adhesives. The polypropylenegecko adhesive is the first synthetic gecko adhesive to demonstrate 5of these 7 properties in a single material:
The Magic Gecko Tape is designed to be the most reliable, useful and strong tool for sticking items. Inspired by the gecko, we used advanced technology to create a strong and reliable tape that is has the best quality and value for money.
We are a team of passionate DIY lovers who came together to reinvent what an adhesive tape can do.
We know that using adhesive tapes can be a sticky mess. Sometimes it doesn't hold things up well. Other times, removing the tape would take with it parts of your wall or paint and leave a sticky mark behind. What's more, they are all single use.
I tried to test the claims of this tape by hanging a bookshelf filled with books on the wall. Amazingly, after 2 weeks, it is still holding strong. I've also hung up a canvas print on the wall and that's also staying put. I would definitely buy more.
Synth. Gecko is a thick, durable, shock absorbing bar tape made with 100% silicone foam. Available in nine colors, there is sure to be one that will fit the color scheme of your machine.
The subtle pavé pattern of the tape provides a surface texture to improve tactile feel and grip. The additional grip is beneficial, particularly on blistering hot days when palms get sweaty, or during the occasional downpour. The natural texture of silicone foam is comparable to brake hoods; it is tacky, squishy but firm, while also providing excellent vibration dampening.
This hands-on activity will guide you in making a synthetic gecko tape with micron sized hairs that mimics that behavior of the gecko foot. The process is called "nanomolding." Also described is an easy setup using Legos for testing how much weight the gecko tape can hold. Significant amount of research is ongoing in the field of synthetic Gecko tape due to its wide variety of applications. This program gives a glimpse of one of the methods used by researchers for making a synthetic gecko tape and its properties.
The toes of a gecko are divided into nanoscale hair-like structures. When a gecko places its foot on the wall and curls its toes, these nanoscale structures interact with the wall on the atomic level. The forces (van-der-waals forces) between the nano-structured hairs of the gecko foot and the atoms of the wall are strong enough to hold up the gecko. Scientists are working to make materials that use gecko-like nano-structures for adhesion.
The Arundel Bicycle Company specialises in bottle cages, but they also offer two types of bar tape: Cork and Gecko. Both are available in black, white, red, blue and yellow. Arundel products are supplied by Artisan Cycles in Albert Park.
Cork bar tapes like the Arundel Cork have been around for a long time. I have often thought about putting on some yellow bar tape to match my frame, but hesitated because of worries about discolouration from my black mitts which seem to stain anything that comes in contact with them. Arundel however, claim their bar tape is easy to clean, so it was time to give the Arundel Cork bar tape in yellow a try.
Opening the box you find two rolls of tape, two pieces of the above mentioned black finishing tape and two bar end plugs with the Arundel logo of an old stone castle, namely Arundel Castle in West Sussex, England.
The colour was not a perfect match for my frame but it was near enough and certainly changed the appearance of the bike. On the road I could not discern any difference from the Cinelli tape in either grippiness or softness. It only took a few hours riding in fine weather for the inevitable staining from my mitts to occur, but a quick wipe with a damp sponge was enough to clean off the stains. The speckled look from the cork may also have helped hide any lighter staining but it looked clean to my eye.
The tape got a better workout by accident while I was doing some maintenance and grabbed the handlebars with my greasy hands. Wiping with a damp sponge was not enough, but a spray with mild cleaning liquid and a wipe with a sponge did the job. I had occasion to re-wrap some of the tape and underneath was brighter in colour but without that contrast the discolouration was of no concern.
The Arundel Gecko tape is a new style of tape that that offers a better grip than cork. The Gecko tape is made of foam and polyurethane with a dimpled surface. The one I tested was black and the colour is uniform.
It is a bit thinner than the Cork and feels very different. Interestingly, the Gecko comes with two pieces of bar tape about 8cm long, already cut to fit around the brake levers. The box has the same fitting instructions as the Cork tape and the same warning about the adhesive applies. As with the Cork tape I had no problems wrapping it on. I took the bike for a longish ride with the Gecko tape on one side and my older tape on the other to provide a direct comparison. The Gecko felt slightly grippier with my gloves on, but the real difference was when I was riding bare handed. In the drops, putting some power down, I found the feel of the Gecko grip to be very comfortable and easier to maintain a tight hold of.
0aad45d008
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