HOME >> BIOLOGY >> NEWS
ORNL technology puts power of lab into the field

OAK RIDGE, Tenn., May 14, 2001 A point-and-shoot portable instrument to protect people and the environment is a product of some 20 years of research by the Department of Energys Oak Ridge National Laboratory (ORNL) scientist Tuan Vo-Dinh.

Whats unique about the instrument, which analyzes chemicals in just seconds, is that it is the first battery-operated portable device with tunable filters and performance comparable to that of laboratory-scale instruments. It uses Raman technology, employing a helium neon laser, acousto-optic tunable filters and a photo sensor to detect toxic chemicals, TNT, byproducts from explosives, drugs and hundreds of chemicals. The material can be in liquid or powder form.

Raman technology involves illuminating a sample with a laser beam and measuring the reflected light. The light shows the vibration energies, which are unique to each compound in the sample, and that information helps scientists identify the substance. Its a technology that, until the development of acousto-optic tunable filters, was impractical for use in the field.

An acousto-optic tunable filter is a solid-state optical bandpass filter that can be tuned to various wavelengths. Because the filter is solid-state and has no moving parts, it is rugged and ideal for this application.

"The recent development of acousto-optic tunable filters has made the use of Raman technology practical for applications in a variety of environments," Vo-Dinh said.

Operation of the instrument is simple, according to Vo-Dinh, who noted that he and colleagues designed it to be used by people with no special skills. The user merely points a probe at the substance to be tested and touches the start button on the touch-screen display. In 11 seconds, the prototype instrument, dubbed RAMiTS (RAMan Tunable Integrated Sensor), provides a spectral analysis. The final product will translate that into a readout identifying the chemical or compound.

Vo-Dinh, a group leader and corpor
'"/>

Contact: Ron Walli
wallira@ornl.gov
865-576-0226
DOE/Oak Ridge National Laboratory
13-May-2001


Page: 1 2

Related biology news :

1. Yale digital diagnostic technology is basis of new company, HistoRx Inc.
2. AACR applauds NCI initiative on nanotechnology
3. Rensselaer marks the opening of the center for biotechnology and interdisciplinary studies
4. New imaging technology at Joslin shown to detect early signs of type 1 diabetes
5. Researchers show how to assemble building blocks for nanotechnology
6. Jefferson Lab detector technology aids development of cystic fibrosis therapy
7. National Academies Advisory: Sept. 18-19 Nanotechnology Conference
8. New diagnostic technology helps justify earlier cataract surgery
9. New textbook introduces students to the foundations, applications of nanotechnology
10. UK biotechnology business plan competition now open to students in the US and Canada
11. The future of nanotechnology

Post Your Comments:
*Name:
*Comment:
*Email:


(Date:8/12/2020)... ... August 11, 2020 , ... Both Roche, based ... entered into license agreements with Housey Pharma’s HMI subsidiary to gain access to ... have annual Research and Development spending in excess of US $10 billion. , ...
(Date:8/7/2020)... ... 06, 2020 , ... Nine middle school teachers from eight ... a unique professional development program that provides advanced STEM (science, technology, engineering and ... nationwide. , Created in partnership between the National Stem Cell Foundation and The ...
(Date:7/31/2020)... ... July 30, 2020 , ... BioFactura, ... contract awarded by the Joint Science & Technology Office—Chemical and Biological Defense (JSTO-CBD) ... develop, optimize, and scale-up a highly efficient mammalian cell culture-based bioprocess suitable to ...
Breaking Biology News(10 mins):
(Date:7/18/2020)... ... , ... After research model surgery and catheter implantation, the long journey of ... beginning of a successful study, while protecting and accessing the catheter or device post-surgery ... Surgery from Envigo in a live webinar on Wednesday, August ...
(Date:7/10/2020)... ... July 09, 2020 , ... PathSensors Inc., ... has expanded the company’s exclusive license to include clinical applications for CANARY™ ... market, focusing initially on the SARS-CoV-2 biosensor. CANARY’s™ fast and highly ...
(Date:7/1/2020)... ... June 29, 2020 , ... MedShift , a leading ... despite many obstacles created as a result of COVID-19. As a provider at ... medical practices and medical manufacturers by expanding access to device offerings, technology services, ...
(Date:6/28/2020)... , ... June 25, 2020 , ... ... advance photodynamic therapy for treating cancer, today announced the company has entered a ... Park”). The agreement provides Lumeda globally exclusive rights to Roswell Park intellectual ...
Breaking Biology Technology:
Cached News: