Nanotechnology Now

Our NanoNews Digest Sponsors

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

Host-guest nanowires for efficient water splitting and solar energy storage February 7th, 2016

Graphene is strong, but is it tough? Berkeley Lab scientists find that polycrystalline graphene is not very resistant to fracture February 7th, 2016

Scientists take key step toward custom-made nanoscale chemical factories: Berkeley Lab researchers part of team that creates new function in tiny protein shell structures February 6th, 2016

Discovery of the specific properties of graphite-based carbon materials February 6th, 2016

Chip Technology

The iron stepping stones to better wearable tech without semiconductors February 8th, 2016

Organic crystals allow creating flexible electronic devices: The researchers from the Faculty of Physics of the Moscow State University have grown organic crystals that allow creating flexible electronic devices February 5th, 2016

Scientists guide gold nanoparticles to form 'diamond' superlattices: DNA scaffolds cage and coax nanoparticles into position to form crystalline arrangements that mimic the atomic structure of diamond February 4th, 2016

Polar vortices observed in ferroelectric: New state of matter holds promise for ultracompact data storage and processing February 4th, 2016

Sensors

Scientists have put a high precision blood assay into a simple test strip: Researchers have developed a new biosensor test system based on magnetic nanoparticles February 3rd, 2016

Nanosheet growth technique could revolutionize nanomaterial production February 1st, 2016

New record in nanoelectronics at ultralow temperatures January 28th, 2016

NBC LEARN DEBUTS SIX-PART VIDEO SERIES, “NANOTECHNOLOGY: SUPER SMALL SCIENCE” Produced by NBC Learn in partnership with the National Science Foundation, and narrated by NBC News/MSNBC’s Kate Snow, series highlights leading research in nanotechnology January 25th, 2016

Nanoelectronics

The iron stepping stones to better wearable tech without semiconductors February 8th, 2016

Cornell researchers create first self-assembled superconductor February 1st, 2016

Spin dynamics in an atomically thin semi-conductor February 1st, 2016

New type of nanowires, built with natural gas heating: UNIST research team developed a new simple nanowire manufacturing technique February 1st, 2016

Announcements

The iron stepping stones to better wearable tech without semiconductors February 8th, 2016

Host-guest nanowires for efficient water splitting and solar energy storage February 7th, 2016

UTHealth research looks at nanotechnology to help prevent preterm birth February 7th, 2016

Graphene is strong, but is it tough? Berkeley Lab scientists find that polycrystalline graphene is not very resistant to fracture February 7th, 2016

Patents/IP/Tech Transfer/Licensing

Joint Efforts by Iranian, Malaysian Scientists Produce Antibacterial Coatings for Isolated Areas February 4th, 2016

Silicon-based metamaterials could bring photonic circuits February 1st, 2016

Therapeutic Solutions International Licenses Dexosome Clinical Stage Cancer Immunotherapy Product From Gustave Roussy European Cancer Centre: FDA Cleared Immuno-Oncology Technology to Resume Clinical Development for Solid Tumor Patients January 27th, 2016

Light-activated nanoparticles prove effective against antibiotic-resistant 'superbugs' January 19th, 2016

Environment

Scientists have put a high precision blood assay into a simple test strip: Researchers have developed a new biosensor test system based on magnetic nanoparticles February 3rd, 2016

Herbal Extracts Applied to Synthesize Titanium Dioxide Nanoparticles January 28th, 2016

FLEXcon shares insights on developments and safety guidelines in nanotechnology: FLEXcon hosted New England Nanotechnology Association event, discussing latest industry activities and innovations January 25th, 2016

Highly efficient heavy metal ions filter January 25th, 2016

Sports

Imec and Cloudtag Collaborate on High Quality Frictionless Wearables for Lifestyle Coaching: Next-generation health and fitness tracker Cloudtag TrackTM launched at CES 2016 January 7th, 2016

New stretchable, wearable sensor made with chewing gum (video) December 2nd, 2015

Make mine a decaf: Breakthrough in knowledge of how nanoparticles grow: University of Leicester and CNRS researchers observe how nanoparticles grow when exposed to helium July 23rd, 2015

New composite material as CO2 sensor June 8th, 2015

Aerospace/Space

Researchers develop completely new kind of polymer: Hybrid polymers could lead to new concepts in self-repairing materials, drug delivery and artificial muscles January 30th, 2016

Scientists build a neural network using plastic memristors: A group of Russian and Italian scientists have created a neural network based on polymeric memristors -- devices that can potentially be used to build fundamentally new computers January 28th, 2016

NBC LEARN DEBUTS SIX-PART VIDEO SERIES, “NANOTECHNOLOGY: SUPER SMALL SCIENCE” Produced by NBC Learn in partnership with the National Science Foundation, and narrated by NBC News/MSNBC’s Kate Snow, series highlights leading research in nanotechnology January 25th, 2016

Deep Space Industries teams with UTIAS Space Flight Laboratory to demonstrate autonomous spacecraft maneuvering: SFL and DSI demonstrate enabling technology for low-cost asteroid missions and constellations January 25th, 2016

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







Car Brands
Buy website traffic