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Nomadics was established in 1994 in order to introduce products that take advantage of
emerging technologies. In particular, we have established ourselves as an innovative
developer of point-of-use sensors and instruments. The company is primarily a product
development company; however, our contract research and development projects also serve
as a means of providing discretionary research funds. The original company objective was
the development of a family of instruments based on the PC Card (PCMCIA Card) platform. We
invented and hold a patent on technologies that allow instruments and data logging equipment
to be implemented on the credit card-sized PCMCIA device for use with personal computers.
Using the PC Card as an instrument platform, we believed we would be able to develop and
deploy computer-based portable instrumentation.
Initially, we developed a family of instruments focused on the electrochemistry industry
including pH, ISE, conductivity, and dissolved oxygen sensors. These designs are currently
produced by us and private labeled for a well-known US company, allowing us to take
advantage of existing requisite marketing channels while concentrating our own efforts
on developing new products. Mentioned in recent articles in Science Week (November 21)
and Business Week (December 7) magazines, Nomadics has established itself as a leader in
developing sensors for field applications that provide sensitivity and capabilities that
were once limited to laboratory instruments. Nomadics is incorporated under Oklahoma
state laws, with headquarters in Stillwater, Oklahoma, and offices in Stillwater and
Oklahoma City. Employment currently stands at 44. The company's 11,000 square-foot
Stillwater facilities house dedicated electrical engineering and chemistry labs, as
well as computer-assisted design and precision test equipment.
Nomadics has several ongoing activities with OSU. Many of these are focused through the
Center for Sensors and Sensor Technologies and have been invaluable in furthering our
research efforts. Nomadics views our relationship with OSU as a key element in our
success. OSU is a source of high quality talent. Eleven of our employees are recent
graduates of OSU. We also employ six to ten interns year-round and more during the summer.
OSU is also a source of key technology.
Nomadics is currently developing a sensor for determining the quality of cooking oil used
in the foodservice industry. We are partnered with Sonic Industries and the OSU Food and
Agricultural Products Center in this effort. This project has the potential to reduce
costs significantly for the food industry and has positive health and environmental
implications.
The pace of technological change is so rapid in today's world that it is imperative that
a small company partner with other organizations in order to make an impact. Nomadics has
made it a priority to establish and cultivate research collaborations. We also have
collaborations with the University of Oklahoma, MIT, Sandia National Laboratory, Armstrong
Laboratory, Frontier Engineering, and DataCritical Corporation. Our objective is to carry
compelling technology from the laboratory to the marketplace, a goal that requires
significant capital. Our approach to meeting this challenge is to leverage our limited
private capital with funds from other sources. We have been successful in doing this both
at a state level through the OCAST Applied Research Program and at the federal level with
six Phase I and three Phase II SBIR awards. These efforts have resulted in a number of
commercial products.
Nomadics is involved in a broad specturm of R&D activities. The Nomadics spectrometer
(Figure 1) is the newest addition to our family of high-quality, PC Card-based portable
analytical instruments. Unlike miniature spectroscopy systems available elsewhere, the
Nomadics spectrometer is self-contained. A broadband light source, user-configurable
sample holder, diffraction grating, photodiode detector array, and interface circuitry
are all enclosed within a single-bodied unit that connects to the PCMCIA slot of a laptop
or handheld computer without the use of cables or external power supplies. The instrument
collects visible spectra from samples held in standard 1 inch or 1 cm cuvettes. Designed
for long-term use in the field, the spectrometer requires less than 50 mA while operating
and 5 mA in sleep mode. It draws its power from a laptop or palmtop host computer without
significantly affecting the host's battery life.
We incorporated a Micro-Electrical Mechanical Systems (MEMS) microspectrometer (Figure 2)
along with miniaturized electronics packaging to meet the size requirements for our PC
Card spectrometer. MicroParts of Germany is a world leader in the development of MEMs-based
sensors. They employ the LIGA based method for implementing deep aspect ratio devices.
They have developed a microspectrometer based on LIGA technology. This device receives
light via an optical fiber and uses a focusing diffraction grating to disperse the beam.
The micromachined device is bonded to a Hammamatsu diode array using a proprietary method.
Nomadics has obtained an exclusive license from MicroParts for use of the device in our
PCMCIA-based spectrometer.
We are embarking on a Small Business Innovation Research (SBIR) funded development of an
advanced water analysis system based on related MEMS technology. The product also includes
a miniaturized reagent storage and pumping system. The reagent mixing and analysis volume
is extremely small, thus requiring very small amounts of reagent and allowing the unit to
operate unattended for up to three months depending on sampling frequency.
Nomadics is currently developing a Surface Acoustic Wave (SAW) based instrument for
measuring extremely low levels of certain environmentally sensitive compounds such as
trichloroethylene (TCE). In 1995, Nomadics received an SBIR award from Armstrong Laboratory
to integrate advanced sensor technologies into fieldable environmental instrumentation.
We entered into a Cooperative Research and Development Agreement (CRADA) with Sandia
National Laboratories to integrate a SAW sensor developed by them (Figure 3) for
measurement of Volatile Organic Compounds (VOCs). This sensor technology had been proven
in testing at Savannah River, Hanford, and Kansas City sites. During the Phase I effort,
Nomadics succeeded in developing a small portable instrument based on this technology.
In addition to working with SAWs, we are also working with Quartz Crystal Microbalances
(QCMs) in collaboration with ICM Corporation.
The development of environmental sensors and instruments targeted at trace levels of
environmental analytes led Nomadics to pursue development of explosive detectors. Nomadics
is currently developing a particle sampler and sensor for use in the detection of landmines
for humanitarian demining purposes under a contract from Defense Advanced Research Projects
Agency (Figure 4). Nomadics is one of several teams funded by DARPA to exploit new vapor
detection and sampling technologies to improve land mine detection methods. The DARPA
program is focused on developing technologies that are biomimetic or utilize technologies
that deect chemical vapors emanating from landmines. Nomadics is teamed with Sandia
National Laboratories. Other organizations that are part of this DARPA effort include MIT,
Caltech, Tufts, Auburn, Texas Instruments, Rockwell, Quantum Dynamics, and Research
International. This sampler is based on electrostatic precipitation technology. The
Nomadics sensor employs a novel fluorescence quenching polymer licensed from MIT. This
polymer effectively amplifies the response of the detector to TNT and other nitroaromatics.
Because the vapor pressure of TNT is so low (10 ppb) some type of amplification is key to
achieving detection in the real world.
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