1. Nanotechnology

Category Archives: Nanotechnology

IBM100 – Nanotechnology

Posted on by

Can a tiny structure, 10,000 times thinner than a human hair, provide us with the answers to the worlds greatest challenges? Scientists at IBM think the answer is yes.

Nano comes from the Greek word for dwarf and broadly speaking, the field of nanotechnology can be defined as research and technology developments at the atomic or molecular level. Researchers in nanotechnology seek to understand and control some of the smallest objects known to humankind.

In terms of length, one nanometer is the equivalent of about four gold atoms or one millionth of a millimeter. Or to use an analogy, the diameter of an atom compares to the diameter of an orange as the orange compares to the Earth.

As the world becomes more instrumented, with billions of transistors embedded in everything from cars to appliances to livestock, nanotechnology will play an increasingly important role in the design of future computer chips that are smaller, smarter and more energy efficient.

To achieve these performance goals, sophisticated nanotechnology processes are needed to fabricate these increasingly small transistors. Just as cells are the basic building blocks for the human body, IBM envisions a world in which nanotechnology processes are the basic building blocks for transistors and microprocessors. IBM scientists are exploring the use of new materials, such as semiconducting nanowires, to improve the fundamental design of transistors, which is more than 50 years old.

IBM Research opened the door to the world of nanoscience in 1981 when Gerd Binnig and Heinrich Rohrer invented the scanning tunneling microscope, revolutionizing our ability to manipulate solid surfaces the size of atoms. [Read more about the Icon of Progress, Scanning Tunneling Microscope]. And since that time, IBM has achieved breakthrough upon breakthrough in the field.

In 1993, NEC researcher Sumio Iijima and IBM researcher Donald S. Bethune had independently discovered a unique new form of carbon called single-walled carbon nanotubes, which can behave like metals or semiconductors, can conduct electricity better than copper, can transmit heat better than diamond, and rank among the strongest materials known.*

Then in 1998, an individual carbon nanotube was made into a transistor by a groupwhich included Phaedon Avouris, who later joined IBMin Delft, Netherlands, and by a team at IBM. IBM continued the work and demonstrated that nanotubes could potentially scale up as building blocks for the future of electronics.

In 2001, this IBM team, led by Dr. Avouris, who had become manager of nanoscale science at IBM Research in Yorktown Heights, NY, devised the first transistors using arrays of carbon nanotubes. Nanotubes conduct electricity at rates that are approximately 70 times higher than silicon. Avouris team, which included Vincent Derycke, Richard Martel and Joerg Appenzeller, also succeeded in integrating the carbon nanotubes with existing chip-making technologies. Later that year, the IBM researchers announced they had built the worlds first circuit using an individual carbon nanotube that could perform a basic logic operation.

In 2002, IBM Research scientists proved that transistors based on carbon nanotubes could switch on and off faster and use less energy than current transistors etched into silicon chips. And most recently, IBM Research scientists in Zurich, Switzerland, have been able to capture an image of the anatomyor chemical structureinside a molecule with unprecedented resolution.

Though not an exact comparison, if you think about how a doctor uses an X-ray to image bones and organs inside the human body, we are using the atomic force microscope to image the atomic structures that are the backbones of individual molecules, said IBM researcher Gerhard Meyer. Scanning probe techniques offer amazing potential for prototyping complex functional structures and for tailoring and studying their electronic and chemical properties on the atomic scale.

Today, interest in carbon electronics has expanded to include transistors and circuits made with graphene, a single atom-thick layer of carbon atoms bonded in a hexagonal honeycomb-like arrangement. In 2010, Avouris team at IBM demonstrated the worlds fastest graphene transistor, capable of switching at a rate of 100 billion times a second, or 100 gigahertz. Most recently, this team produced the first graphene-integrated circuit, a radio-frequency mixer. (A mixer is used in radios and other communications equipment to switch a signal up or down to another frequency.) The same team applied graphene in optoelectronics and demonstrated the use of a single atomic layer of graphene to reliably detect optical data streams at rates of 10 gigabits per second. Graphene has many advantages because it can be used as a universalmeaning it has very wide wavelength rangephotodetector. Graphene also has an ultrafast response and is inexpensive.

The benefits of nanotechnology, however, extend beyond electronics. Nanoscale systems are already being tested by different companies to improve solar energy, water purification and desalination in the emerging markets, and to enable faster and more accurate healthcare diagnostic toolssuch as the IBM DNA Transistor [read more about this Icon of Progress]which offers a potential high-tech, low-cost method for reading the human genome sequence.

The most recent development in applying nanoscience to medicine is the development of a potential weapon against Methicillin-resistant Staphylococcus aureus (MRSA), an easily contracted form of Staph infection, which causes tens of thousands of hospital-stay deaths in the United States every year. When the Staph bacteria develops resistance to antibiotics, it can be deadly. IBM researchers have discovered a potential breakthrough method of treatment in which nanostructures are able to detect and destroy the antibiotic-resistant bacteria while leaving the healthy cells intact. Scientists used principles from semiconductor manufacturing and found that certain polymers can locate bacteria and break through the bacterial cell wall and membrane. When the membrane is destroyed, the cells are unable to mutate into antibiotic-resistant bacteria. The nanostructures, when finished fighting the bacteria, biodegrade in the body and are eliminated. While still experimental, using nanotechnology in this way could be a potential breakthrough in how to treat this disease.

With all of this potential, its no surprise that nanotechnology is attracting increasing attention from all over the world, and governments from the United States to Switzerland to Jordan to China are all investing in the science. IBM extended its commitment to the future of nanotechnology research and innovations in May 2011 with the opening of the Binnig and Rohrer Nanotechnology Center on the IBM Research campus in Zurich. The Center is a unique collaboration with ETH Zurich, a premier European science and engineering university.

* Citation to Sumio Iijima and Donald S. Bethune, James C. McGroddy Prize for New Materials, American Physical Society, March 2002

Continue reading here:
IBM100 - Nanotechnology

Nanotechnology News – Nanoscience, Nanotechnolgy, Nanotech …

Posted on by

15 hours ago feature

(Phys.org)A new study shows that a swarm of hundreds of thousands of tiny microbots, each smaller than the width of a human hair, can be deployed into industrial wastewater to absorb and remove toxic heavy metals. The ...

15 hours ago

A team of scientists from the University of Exeter have created a new type of device that could be used to develop cost-effective gas sensors.

16 hours ago

In order for touchscreens on smartphones and tablets to function, microscopically fine conductor paths are required on their surfaces. When the users' fingers tip on or wipe over them, electrical circuits open and close, ...

18 hours ago

By using innovative magnetic materials, an international collaborative of researchers has made a breakthrough in the development of microwave detectors devices that can sense weak microwave signals used for mobile communications, ...

Apr 08, 2016

For more than a decade, biomedical researchers have been looking for better ways to deliver cancer-killing medication directly to tumors in the body. Tiny capsules, called nanoparticles, are now being used to transport chemotherapy ...

Apr 08, 2016

Harnessing the power of the sun and creating light-harvesting or light-sensing devices requires a material that both absorbs light efficiently and converts the energy to highly mobile electrical current. Finding the ideal ...

Apr 08, 2016

Our current understanding of how the brain works is very poor. The electrical signals travel around the brain and throughout the body, and the electrical properties of the biological tissues are studied using electrophysiology. ...

Apr 08, 2016

A spy. A teacher. A bodyguard. That, in a nutshell, describes the different functions of a nanoparticle invented at the University at Buffalo that can improve therapies for autoimmune diseases, genetic disorders and other ...

Apr 07, 2016

The transistor is the most fundamental building block of electronics, used to build circuits capable of amplifying electrical signals or switching them between the 0s and 1s at the heart of digital computation. Transistor ...

Apr 07, 2016

Nanoparticles designed to block a cell-surface molecule that plays a key role in inflammation could be a safe treatment for inflammatory bowel disease (IBD), according to researchers in the Institute for Biomedical Sciences ...

Continue reading here:
Nanotechnology News - Nanoscience, Nanotechnolgy, Nanotech ...

Georgia Tech | Cleanroom

Posted on by

IEN Fall 2015 Microfabrication Workshop October 19

The Institute for Electronics and Nanotechnology (IEN) at Georgia Tech will offer a short course on microfabrication on Oct. 19-22, 2015. This intensive 3.5 day short course combines lectures and hands-on fabrication in the IEN cleanroom. The goal of the course is to impart a basic understanding of the science and technology of microfabrication.

This is a great online application for getting a better grasp of the nano scale. By zooming in and out you can see examples of objects in many different scales.

The Georgia Tech Institute for Electronics and Nanotechnology is a leader in the fields of Microelectronics and Nanotechnology. Our staff support your processing through our equipment, facilities and process support.

The IEN is comprosed of labs and cleanrooms in several buildings on the Georgia Tech campus with a wide variety of processing and materials support along with the expertise of the IEN staff.

The Georgia Tech Institute for Electronics and Nanotechnology is a proud member of the National Nanotechnology Infrastructure Network.

At the IEN we have replaced the controls systems on 12 pieces of semiconductor fabrication equipment. This gives us the ability to create a new control system for a piece of equipment with an obsolete or failing control system. By doing this we increase uptime of critical tools, reduce training time across tools, add any new features to the system we desire and have the ability to datalog and points on the tool to assist in staff troubleshooting and user documentation of processes. Please contact Jason Herrington at jasonherrington@gatech.edu if you would like more information on the controls projects or adding a feature to on of these tools.

Read more here:
Georgia Tech | Cleanroom

NANOMEDICINE 2: Introduction to the Healthcare Application of Nanotechnology – Video

Posted on by


NANOMEDICINE 2: Introduction to the Healthcare Application of Nanotechnology
Nanomedicine is the application of nanotechnology to the arts of the healthsciences, which show great promise in Medical Devices, as well as the nanoparticle...

By: NanoMedicine

Read the original:
NANOMEDICINE 2: Introduction to the Healthcare Application of Nanotechnology - Video

Solar Cell Materials Price Working Manufacturer Dealer Supplier Junction Efficiency Nanotechnology – Video

Posted on by


Solar Cell Materials Price Working Manufacturer Dealer Supplier Junction Efficiency Nanotechnology
Visit: http://bajstor.com/technology/solar-cell.html Call: +919560214267. Email: support@bajstor.com.

By: Bajstor.com

Read the original here:
Solar Cell Materials Price Working Manufacturer Dealer Supplier Junction Efficiency Nanotechnology - Video


  1. Nanotechnology