Nanotechnology Now







Heifer International

Wikipedia Affiliate Button


DHgate

Home > Press > NJIT professor obtains patent to uncover trace elements of airborne pollutants

Abstract:
A breakthrough patent awarded to a New Jersey Institute of Technology (NJIT) researcher will enable manufacturers to create a device to uncover miniscule amounts of airborne pollutants. Using computer chip technology, Somenath Mitra, PhD, professor and chair of NJIT's Department of Chemistry and Environmental Sciences, has developed and patented what could eventually become a simple keychain device to detect tiny, though potentially lethal, amounts of airborne carcinogens.

NJIT professor obtains patent to uncover trace elements of airborne pollutants

Newark, NJ | Posted on March 20th, 2007

Calling the invention a microconcentrator, Mitra said his NJIT research team has created a novel, cost-effective and efficient method to concentrate pollutants. By doing so, pollutants can then be introduced onto a sensor to identify trace pollutants.

"Our chip has a polymer enabling it to concentrate the pollutants and a tiny built-in heater that drives them onto the sensor," Mitra said. "It works like a bicycle pump. First our chip accumulates the pollutants as a pump fills with air. Then, the chip directs the tiny heater to send a large enough sampling of pollutants—if they exist-- to the sensor's head. With a large sample, the sensor can recognize that pollutants exist."

"A Microfabricated Microconcentrator For Sensors and Gas Chromatography," US Patent 7147695B2, was awarded to Mitra in December of 2006. Research about the invention was previously published in Sensors and Materials ("Design and Fabrication of Microheaters for Microfluidic Channels") in 2006 and The Journal of Chromatography A ("A Microfabricated Microconcentrator for Sensors and Gas Chromatography") in 2003.

"The value of our sensing system is that it can see pollutants even when they are present at very low concentrations," said Mitra. "Down the road, we hope to see this technology pave the way for developing a small, inexpensive device to fit on a key chain. These devices would do the same job as larger instruments used in chemical laboratories for monitoring organic and other pollutants in air and water."

Although many advances have been made in science, it is still not as simple as many people imagine for scientists to monitor pollutants. The consequences from automobile exhaust, the dilution of cleaning solvents in air or the problems that occur when tankers spill gasoline, remain of concern to scientists.

"Typical concentrations of many pollutants can be small--only a few molecules of pollutants in every part per billion of air or water molecules," Mitra said. "But even at these levels, these pollutants pose a threat to human and public health."

"For example, we know that benzene, a by-product of automobile exhaust, causes cancer," Mitra said. "The organics from auto exhaust fumes also lead to smog formation in urban areas like Los Angeles. Measuring benzene and similar chemicals, though, is costly and difficult. One must have access to large instruments that cost thousands of dollars. But using the microconcentrator, this will no longer be the case."

Although the market currently features affordable miniature sensors, the technology is not there yet for the tiniest amounts of pollutants, said Mitra. "I'm talking about creating an instrument sensitive enough to measure concentrations of pollutants such as benzene, which may range in just a few parts per million or even billion."

Mitra's research interests are two-pronged. He looks for novel analytical techniques and sensors to discover low-level trace elements in air, water and soil. His current projects include developing instrumentation and methods for continuous, on-line analysis of trace levels of organic pollutants in air and water. These methods range from using gas chromatography or mass spectrometry to micro-scale, lab-on-a-chip devices.

Mitra also looks for new ways to assemble and modify carbon nanotubes to create novel and new materials to be used in applications ranging from tennis rackets to rocket ships. Other uses might include developing smaller nano chips for electronics (also known as nano-electronics) and inexpensive, high-performance throw-away chemical sensors. The latter might range from sensors for clinical diagnostic purposes to using sensors to find toxic chemicals in air, food or water.

Mitra has published 70 journal papers and is the coauthor of Environmental Chemical Analysis (CRC Press, New York, 1998). He also edited Sample Preparation Techniques in Analytical Chemistry (John Wiley, New York, 2003). Mitra holds five patents and has made more than 150 presentations conferences.

Mitra received his PhD from Southern Illinois University in 1988.

####

About New Jersey Institute of Technology
NJIT, New Jersey's science and technology university, at the edge in knowledge, enrolls more than 8,000 students in bachelor's, master's and doctoral degrees in 92 degree programs offered by six colleges: Newark College of Engineering, New Jersey School of Architecture, College of Science and Liberal Arts, School of Management, Albert Dorman Honors College and College of Computing Sciences. NJIT is renowned for expertise in architecture, applied mathematics, wireless communications and networking, solar physics, advanced engineered particulate materials, nanotechnology, neural engineering and e-learning. In 2006, Princeton Review named NJIT among the nation's top 25 campuses for technology and top 150 for best value. U.S. News & World Report's 2007 Annual Guide to America's Best Colleges ranked NJIT in the top tier of national research universities.

For more information, please click here

Contacts:
Sheryl Weinstein

973-596-3436

Copyright © New Jersey Institute of Technology

If you have a comment, please Contact us.

Issuers of news releases, not 7th Wave, Inc. or Nanotechnology Now, are solely responsible for the accuracy of the content.

Bookmark:
Delicious Digg Newsvine Google Yahoo Reddit Magnoliacom Furl Facebook

Related News Press

Possible Futures

GS7 Graphene Sensor maybe Solution in Fight Against Cancer January 25th, 2015

Nanotechnology in Energy Applications Market Research Report 2014-2018: Radiant Insights, Inc January 15th, 2015

'Mind the gap' between atomically thin materials December 23rd, 2014

A novel method for identifying the body’s ‘noisiest’ networks November 19th, 2014

Chip Technology

Creating new materials with quantum effects for electronics January 29th, 2015

Advantest to Exhibit at SEMICON Korea in Seoul, South Korea February 4-6 Showcasing Broad Portfolio of Semiconductor Products, Technologies and Solutions January 29th, 2015

Nanometrics to Present at the Stifel 2015 Technology, Internet and Media Conference January 27th, 2015

New pathway to valleytronics January 27th, 2015

Sensors

Detection of Heavy Metals in Samples with Naked Eye January 26th, 2015

GS7 Graphene Sensor maybe Solution in Fight Against Cancer January 25th, 2015

Nanosensor Used for Simultaneous Determination of Effective Tea Components January 24th, 2015

Iranian Scientists Produce Graphene-Based Oxygen Sensor January 23rd, 2015

Nanoelectronics

Electronic circuits with reconfigurable pathways closer to reality January 26th, 2015

Rice-sized laser, powered one electron at a time, bodes well for quantum computing January 15th, 2015

Rapid journey through a crystal lattice: Researchers measure how fast electrons move through single atomic layers January 14th, 2015

A new step towards using graphene in electronic applications January 14th, 2015

Announcements

Crystal light: New light-converting materials point to cheaper, more efficient solar power: University of Toronto engineers study first single crystal perovskites for new solar cell and LED applications January 30th, 2015

Park Systems Announces Innovations in Bio Cell Analysis with the Launch of Park NX-Bio, the only 3-in-1 Imaging Nanoscale Tool Available for Life Science Researchers January 29th, 2015

2015 Nanonics Image Contest January 29th, 2015

Iranian Scientists Use MOFs to Eliminate Dye Pollutants January 29th, 2015

Patents/IP/Tech Transfer/Licensing

Industrial Nanotech, Inc. Announces New OEM Customer January 27th, 2015

Carbon nanotube finding could lead to flexible electronics with longer battery life January 14th, 2015

Liquipel Receives US Patent on Environmentally Friendly, Watersafe Treatment of Electronics: U.S. Patent Office Finds Watersafe™ Treatment Covers Cell Phones, Smart Phones, Tablets, Computers and More January 5th, 2015

New non-invasive method can detect Alzheimer's disease early: MRI probe technology shows brain toxins in living animals for first time December 22nd, 2014

Environment

Iranian Scientists Use MOFs to Eliminate Dye Pollutants January 29th, 2015

Detection of Heavy Metals in Samples with Naked Eye January 26th, 2015

Magnetic Nanosorbents Able to Eliminate Chemical Contaminants January 19th, 2015

Malaysian Nanotechnology Company Nanopac Innovation Ltd. lists on the NSX January 19th, 2015

Sports

Researchers use nanotechnology to engineer ACL replacements: Researchers created a tri-component, synthetic graft for reconstructing torn anterior cruciate ligaments December 30th, 2014

‘Small’ transformation yields big changes September 16th, 2014

CEA-Leti and CORIMA Team up on Force Sensors Integrated in Cycle Wheels to Measure Rider Power Output June 26th, 2014

‘Four!' Heads Up, Wide Use of More Flexible Metallic Glass Coming Your Way: Advances in Glass Alloys Lead to Strength, Flexibility March 4th, 2014

Aerospace/Space

Asteroid Mining 101: A New Book by World-Renowned Expert Dr. John S. Lewis - Exclusive Sneak-Peek Opportunity for Book Reviewers and Media January 29th, 2015

Scientists 'bend' elastic waves with new metamaterials that could have commercial applications: Materials could benefit imaging and military enhancements such as elastic cloaking January 23rd, 2015

Teijin to Participate in Nano Tech 2015 January 22nd, 2015

Production of Special Nanocomposite in Iran with Application in Railways December 23rd, 2014

NanoNews-Digest
The latest news from around the world, FREE



  Premium Products
NanoNews-Custom
Only the news you want to read!
 Learn More
NanoTech-Transfer
University Technology Transfer & Patents
 Learn More
NanoStrategies
Full-service, expert consulting
 Learn More










ASP
Nanotechnology Now Featured Books




NNN

The Hunger Project







© Copyright 1999-2015 7th Wave, Inc. All Rights Reserved PRIVACY POLICY :: CONTACT US :: STATS :: SITE MAP :: ADVERTISE