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Tiny Robots Get A Grip On Nanotubes
ScienceDaily (Aug. 24, 2009) — How do you handle the tiny components needed for constructing nanoscale devices? A European consortium has built two microrobotic demonstrators that can automatically pick up and install carbon nanotubes thousands of times thinner than a human hair.
See also:
Matter & Energy
* Nanotechnology
* Materials Science
* Electronics
Computers & Math
* Mobile Computing
* Artificial Intelligence
* Robotics
Reference
* Nanorobotics
* Electron microscope
* Humanoid robot
* Scanning tunneling microscope
Carbon nanotubes, rolled up sheets of carbon only a few tens of nanometres in diameter, could become an essential part of the nanotechnologist’s construction kit. But there is a problem: how can you handle objects which are so thin that they cannot be seen at all with a normal optical microscope?
“The handling and characterisation of these objects has become more and more important in materials science and nanotechnology,” says Volkmar Eichhorn of the University of Oldenburg and its associated institute, OFFIS. “They have a huge application potential in various products.”
One solution, developed by the EU-funded NanoHand project, is to use mobile microrobots equipped with delicate handling tools. NanoHand builds on the work of ROBOSEM, an earlier EU project that developed the basic technologies that are now being put into effect.
The robots, about two centimetres in size, work inside a scanning electron microscope where their activities can be followed by an observer. “The whole set-up is integrated into the vacuum chamber of the microscope,” Eichhorn explains. “There is a glass plate where these mobile microrobots can walk around.”
Microgrippers
Each robot has a ‘microgripper’ that can make precise and delicate movements. It works on an electrothermal principle to open and close the jaws, much like a pair of tweezers.
The jaws open to about 2 micrometres and can pick up objects less than 100 nanometres in size. “[It is] really able to grip micro or even nano objects,” Eichhorn says. “We have handled objects down to tens of nanometres.”
At that scale, the intermolecular forces between objects are stronger than gravity. Once a nanotube has been picked up it will stick to the jaws of the gripper and cannot easily be dropped into position. The team have had to develop novel ‘pick-and-place’ techniques to get around this problem.
One approach is to glue the tube in its final position using electron beam-induced deposition. Another is to use geometrical principles to ensure that the intermolecular forces pulling the tube towards its intended location are greater than those holding it in the jaws of the gripper.
“Worldwide, we are the first project that has really realised the automated microgripper-based pick-and-place experiments,” Eichhorn notes. “The new thing is the high accuracy and the small scale of the objects – in the range of tens or hundreds of nanometres – and the excellent control and software architecture being built around this whole set-up facilitating a high degree of automation.”
Better microscope
An early success of the project was to improve the performance of an atomic force microscope, a workhorse of nanotechnology.
The microscope ‘feels’ a surface by dragging a fine probe over it. Individual atoms can be sensed and a picture built up. But conventional probes have a pyramid-shaped tip which cannot follow the hills and valleys of deeply corrugated surfaces. The NanoHand team used their microrobots to automatically pick up a carbon nanotube and attach it to the tip, so greatly improving the probe’s ability to sense deep valleys.
This achievement was made with the ‘NanoLab’ demonstrator, designed for use in experimental laboratory situations.
In parallel, the industrial partners have developed a more robust ‘NanoFab’ demonstrator, better suited to the needs of industry. They are exploring how the technology could be used for rapid prototyping of new designs for microchips. One idea is to use carbon nanotubes as ‘interconnects’, the fine wires that make the electrical connections to a chip. Because of their high electrical conductivity, carbon nanotubes dissipate less heat than copper and allow circuits to be packed more densely.
This application is of particular interest to STMicroelectronics, one of the project partners and a heavyweight maker of microchips. “They would like to have a nanorobotic system where they can do fast and rapid characterisation of these devices,” says Eichhorn. “Up to now, it was a manual, teleoperated characterisation which was very time consuming.”
Early exploitation
Many other industrial applications are possible, including novel devices that could not be constructed any other way. Applications in composite materials, displays and new kinds of transistors are all being talked about.
Other groups are working on methods of handling nanotubes, especially in the USA, Japan and China, but the NanoHand system of microrobots and microgrippers is proving effective and reliable. “It’s very promising for nanotechnology applications,” says Eichhorn.
From the start, the project has been run with commercialisation in mind and the first product is already on the market. Two of the industrial partners, Tescan and Klocke Nanotechnik, are collaborating to sell a scanning electron microscope equipped with a nanopositioning system based on NanoHand technology.
The Technical University of Denmark (DTU Nanotech) intends to set up a spin-off to market the microgrippers and the Ecoles Polytechniques Fédérale de Lausanne (EPFL) is seeking to further develop the microrobots to the point where they can be commercialised.
NanoHand received funding from the ICT strand of the EU’s Sixth Framework Programme for research.
Adapted from materials provided by ICT Results.
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ICT Results (2009, August 24). Tiny Robots Get A Grip On Nanotubes. ScienceDaily. Retrieved August 24, 2009, from http://www.sciencedaily.com /releases/2009/08/090819083905.htm
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Low cost, light weight robot arm for industial use.
www.universal-robots.com
Elicarb™ SW
Single-wall carbon nanotubes Commercial supplies
www.thomas-swan.co.uk
Carbon Nanotubes Research
Market report and analysis of CNT & Graphene industry from IDTechEx
www.IDTechEx.com/nano
Carbon Nanotubes for Sale
carbon nanotubes - SWNTs: raw, purified, water soluble
carbonsolution.com
NANO IRON
Zero valent iron nanoparticles For groundwater remediation
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Related Stories
Researchers Peer Into Water In Carbon Nanotubes (June 30, 2008) — Researchers have identified a signature for water inside single-walled carbon nanotubes, helping them understand how water is structured and how it moves within these tiny ... > read more
Bouncy Cell Phones And Car Bumpers May Be Workable With Springy Nanotubes (Aug. 14, 2008) — Electronic devices get smaller and more complex every year. It turns out that fragility is the price for miniaturization, especially when it comes to small devices, such as cell phones, hitting the ... > read more
Breakthrough In Production Of Double-walled Carbon Nanotubes (Dec. 29, 2008) — In recent years, the possible applications for double-walled carbon nanotubes have excited scientists and engineers, particularly those working on developing renewable energy technologies. These tiny ... > read more
New Serpentine Nanotube Structures Created (May 27, 2008) — Scientists are developing techniques to coax carbon nanotubes to self-assemble into ordered structures -- essentially making the nanotubes do the hard work for them. Ironically, the universal ... > read more
High Power Supercapacitors From Carbon Nanotubes (Feb. 20, 2005) — Supercapacitors that can deliver a strong surge of electrical power could be manufactured from carbon nanotubes using a technique developed by researchers at UC ... > read more
Honey, I Shrunk The Carbon Nanotubes! (Nov. 15, 2006) — Why would anyone want to shrink carbon nanotubes (CNTs), those cylinders of pure carbon with properties ideal for a new generation of sensors, transistors, super-strong fabrics, and nanoscale ... > read more
Scientists Stretch Carbon Nanotubes: Research May Influence Future Development Of Semiconductors, Nanocomposites (Jan. 26, 2006) — Physicists at Boston College have for the first time shown that carbon nanotubes can be stretched at high temperature to nearly four times their original length, a finding that could have ... > read more
Water Purification Down The Nanotubes: Could Nanotechnology Solve The Water Crisis? (Sep. 16, 2008) — Nanotechnology could be the answer to ensuring a safe supply of drinking water for regions of the world stricken by periodic drought or where water contamination is rife. Writing in the International ... > read more
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High-aspect ratio AFM imaging Straight, Strong and Durable
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Tiny Robots Get A Grip On Nanotubes
ScienceDaily (Aug. 24, 2009) — How do you handle the tiny components needed for constructing nanoscale devices? A European consortium has built two microrobotic demonstrators that can automatically pick up and install carbon nanotubes thousands of times thinner than a human hair.
See also:
Matter & Energy
* Nanotechnology
* Materials Science
* Electronics
Computers & Math
* Mobile Computing
* Artificial Intelligence
* Robotics
Reference
* Nanorobotics
* Electron microscope
* Humanoid robot
* Scanning tunneling microscope
Carbon nanotubes, rolled up sheets of carbon only a few tens of nanometres in diameter, could become an essential part of the nanotechnologist’s construction kit. But there is a problem: how can you handle objects which are so thin that they cannot be seen at all with a normal optical microscope?
“The handling and characterisation of these objects has become more and more important in materials science and nanotechnology,” says Volkmar Eichhorn of the University of Oldenburg and its associated institute, OFFIS. “They have a huge application potential in various products.”
One solution, developed by the EU-funded NanoHand project, is to use mobile microrobots equipped with delicate handling tools. NanoHand builds on the work of ROBOSEM, an earlier EU project that developed the basic technologies that are now being put into effect.
The robots, about two centimetres in size, work inside a scanning electron microscope where their activities can be followed by an observer. “The whole set-up is integrated into the vacuum chamber of the microscope,” Eichhorn explains. “There is a glass plate where these mobile microrobots can walk around.”
Microgrippers
Each robot has a ‘microgripper’ that can make precise and delicate movements. It works on an electrothermal principle to open and close the jaws, much like a pair of tweezers.
The jaws open to about 2 micrometres and can pick up objects less than 100 nanometres in size. “[It is] really able to grip micro or even nano objects,” Eichhorn says. “We have handled objects down to tens of nanometres.”
At that scale, the intermolecular forces between objects are stronger than gravity. Once a nanotube has been picked up it will stick to the jaws of the gripper and cannot easily be dropped into position. The team have had to develop novel ‘pick-and-place’ techniques to get around this problem.
One approach is to glue the tube in its final position using electron beam-induced deposition. Another is to use geometrical principles to ensure that the intermolecular forces pulling the tube towards its intended location are greater than those holding it in the jaws of the gripper.
“Worldwide, we are the first project that has really realised the automated microgripper-based pick-and-place experiments,” Eichhorn notes. “The new thing is the high accuracy and the small scale of the objects – in the range of tens or hundreds of nanometres – and the excellent control and software architecture being built around this whole set-up facilitating a high degree of automation.”
Better microscope
An early success of the project was to improve the performance of an atomic force microscope, a workhorse of nanotechnology.
The microscope ‘feels’ a surface by dragging a fine probe over it. Individual atoms can be sensed and a picture built up. But conventional probes have a pyramid-shaped tip which cannot follow the hills and valleys of deeply corrugated surfaces. The NanoHand team used their microrobots to automatically pick up a carbon nanotube and attach it to the tip, so greatly improving the probe’s ability to sense deep valleys.
This achievement was made with the ‘NanoLab’ demonstrator, designed for use in experimental laboratory situations.
In parallel, the industrial partners have developed a more robust ‘NanoFab’ demonstrator, better suited to the needs of industry. They are exploring how the technology could be used for rapid prototyping of new designs for microchips. One idea is to use carbon nanotubes as ‘interconnects’, the fine wires that make the electrical connections to a chip. Because of their high electrical conductivity, carbon nanotubes dissipate less heat than copper and allow circuits to be packed more densely.
This application is of particular interest to STMicroelectronics, one of the project partners and a heavyweight maker of microchips. “They would like to have a nanorobotic system where they can do fast and rapid characterisation of these devices,” says Eichhorn. “Up to now, it was a manual, teleoperated characterisation which was very time consuming.”
Early exploitation
Many other industrial applications are possible, including novel devices that could not be constructed any other way. Applications in composite materials, displays and new kinds of transistors are all being talked about.
Other groups are working on methods of handling nanotubes, especially in the USA, Japan and China, but the NanoHand system of microrobots and microgrippers is proving effective and reliable. “It’s very promising for nanotechnology applications,” says Eichhorn.
From the start, the project has been run with commercialisation in mind and the first product is already on the market. Two of the industrial partners, Tescan and Klocke Nanotechnik, are collaborating to sell a scanning electron microscope equipped with a nanopositioning system based on NanoHand technology.
The Technical University of Denmark (DTU Nanotech) intends to set up a spin-off to market the microgrippers and the Ecoles Polytechniques Fédérale de Lausanne (EPFL) is seeking to further develop the microrobots to the point where they can be commercialised.
NanoHand received funding from the ICT strand of the EU’s Sixth Framework Programme for research.
Adapted from materials provided by ICT Results.
Email or share this story:
| More
Need to cite this story in your essay, paper, or report? Use one of the following formats:
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ICT Results (2009, August 24). Tiny Robots Get A Grip On Nanotubes. ScienceDaily. Retrieved August 24, 2009, from http://www.sciencedaily.com /releases/2009/08/090819083905.htm
Ads by Google
Advertise here
Flexible robot arm
Low cost, light weight robot arm for industial use.
www.universal-robots.com
Elicarb™ SW
Single-wall carbon nanotubes Commercial supplies
www.thomas-swan.co.uk
Carbon Nanotubes Research
Market report and analysis of CNT & Graphene industry from IDTechEx
www.IDTechEx.com/nano
Carbon Nanotubes for Sale
carbon nanotubes - SWNTs: raw, purified, water soluble
carbonsolution.com
NANO IRON
Zero valent iron nanoparticles For groundwater remediation
www.nanoiron.cz
Related Stories
Researchers Peer Into Water In Carbon Nanotubes (June 30, 2008) — Researchers have identified a signature for water inside single-walled carbon nanotubes, helping them understand how water is structured and how it moves within these tiny ... > read more
Bouncy Cell Phones And Car Bumpers May Be Workable With Springy Nanotubes (Aug. 14, 2008) — Electronic devices get smaller and more complex every year. It turns out that fragility is the price for miniaturization, especially when it comes to small devices, such as cell phones, hitting the ... > read more
Breakthrough In Production Of Double-walled Carbon Nanotubes (Dec. 29, 2008) — In recent years, the possible applications for double-walled carbon nanotubes have excited scientists and engineers, particularly those working on developing renewable energy technologies. These tiny ... > read more
New Serpentine Nanotube Structures Created (May 27, 2008) — Scientists are developing techniques to coax carbon nanotubes to self-assemble into ordered structures -- essentially making the nanotubes do the hard work for them. Ironically, the universal ... > read more
High Power Supercapacitors From Carbon Nanotubes (Feb. 20, 2005) — Supercapacitors that can deliver a strong surge of electrical power could be manufactured from carbon nanotubes using a technique developed by researchers at UC ... > read more
Honey, I Shrunk The Carbon Nanotubes! (Nov. 15, 2006) — Why would anyone want to shrink carbon nanotubes (CNTs), those cylinders of pure carbon with properties ideal for a new generation of sensors, transistors, super-strong fabrics, and nanoscale ... > read more
Scientists Stretch Carbon Nanotubes: Research May Influence Future Development Of Semiconductors, Nanocomposites (Jan. 26, 2006) — Physicists at Boston College have for the first time shown that carbon nanotubes can be stretched at high temperature to nearly four times their original length, a finding that could have ... > read more
Water Purification Down The Nanotubes: Could Nanotechnology Solve The Water Crisis? (Sep. 16, 2008) — Nanotechnology could be the answer to ensuring a safe supply of drinking water for regions of the world stricken by periodic drought or where water contamination is rife. Writing in the International ... > read more
Search ScienceDaily
Number of stories in archives: 44,032
Find with keyword(s):
Enter a keyword or phrase to search ScienceDaily's archives for related news topics,
the latest news stories, reference articles, science videos, images, and books.
Ads by Google
Advertise here
Failure Analysis Systems
SEM and TEM sample preparation systems for semiconductor industry
www.sela.com
Carbon Nanotubes
Purified, length & diameter control Powders, arrays, papers, devices
www.nano-lab.com
Carbon Nanotube Probes
High-aspect ratio AFM imaging Straight, Strong and Durable
www.carbondesigninnovations.com
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* S.Korea seeks 4-year prison term for stem cell fraud
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* Singapore shoots down "rumor" of APEC attack plot
* Hurricane Bill kills 2 in U.S., drenches eastern Canada
* China trials over Xinjiang riot "likely this week"
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