geology associations

The Companies do
not undertake any obligation to update these forward -looking statements. Schwetz, D.
Nearly all federal departments and agencies that conduct or fund human
subject research adhere to the Federal Policy for the Protection of Human
Subjects, a set of identical regulations adopted by 16 departments and
agencies in 1991 that is known informally as the "Common Rule.

standards academic

About Sigma-Aldrich: Sigma-Aldrich is a leading Life Science and High
Technology company.

Business Editors/Technology Writers/Defense Writers

LOS ANGELES ----Universal Detection
Technology (OTCBB:UDTT) today announced that it has appointed Dr. He served as the Acting Director of
Surgical Research and the Director of Transplantation Biology at the
Cedars -Sinai Medical Center in Los Angeles from 1989 to 1992.

departments zoos

"The lentiviral-based system provides several advantages over other
available viral methods including broad tropism, receptor-independent
delivery, and the ability to integrate into the genome without a mitotic
event," commented Keith Jolliff, Global Marketing Manager of Molecular Biology
at Sigma-Aldrich. Cramer to our scientific advisory team adds
significant experience in public health and administration. Cramer's expertise to
evaluate the feasibility of new research projects and to monitor and
apply for relevant government grants for existing and new research,
development, and commercialization undertakings.

Dr . Cramer served as the Associate Professor
of Pathology (with Tenure) at University of Pittsburgh School of
Medicine.

associations institutions

For more information, visit the OHRP assurance Web page
at http://www.hhs .
Donald V.
"The addition of Dr.com

Except for historical information contained herein, the statements
in this news release are forward-looking statements that are made
pursuant to the safe harbor provisions of the Private Securities
Litigation Reform Act of 1995.

Research organizations , academic departments, scientific and engineering societies and associations, professional societies , museums of science and technology, government science establishments.

institutes institutions

0) and 15,000 mouse genes (MISSION TRC-Mm1.html. His
other employment activities include membership at the National
Institutes of Health reviewer reserve, National Center for Research
Resources.

aquariums astronomy

WASHINGTON, The U. Forward-looking statements involve
known and unknown risks and uncertainties, which may cause a company's
actual results, performance and achievement in the future to differ
materially from forecasted results, performance, and achievement.

astronomy biology

0). The libraries
will be expanded on a quarterly basis to include new gene targets.D.
By Dec.
The Common Rule signatories group includes the Departments of Agriculture,
Energy, Commerce, Defense, Education, HHS, Housing and Urban Development,
Justice , Transportation, Veterans Affairs, the Agency for International
Development, the Central Intelligence Agency, the Consumer Products Safety
Commission, the Environmental Protection Agency, the National Aeronautics and
Space Administration and the National Science Foundation.net or
http://www.

astronomy science

LOUIS , Sigma-Aldrich Corporation
(Nasdaq: SIAL), a leading Life Science and High Technology Company, has
introduced the MISSION RNAi product line, including the first available
formats for The RNAi Consortium (TRC) shRNA libraries., director of the
Office for Human Research Protection. 31, 2005, all institutions conducting HHS-funded human subjects
research must hold an FWA approved by HHS' Office for Human Research
Protections (OHRP).

herbaria zoos

It has customers in
life science companies, university and government institutions, hospitals, and
in industry.

geology standards

Each
target is currently represented by an average of 3-5 shRNA vectors supplied
individually in frozen bacterial glycerol stock format. Over one million scientists and technologists use its products.

This release contains forward-looking statements relating to future
performance, strategic actions and initiatives, and similar intentions and
beliefs and other statements regarding the Companies' expectations, beliefs,
intentions and the like, which involve assumptions regarding the Companies'
operations and conditions in the markets the Companies serve. "It reduces the burden of regulatory
compliance while strengthening the research community 's ability to focus on
protections for research subjects. Cramer will
help shape and maintain a focused research and development strategy
for the company and will provide a wealth of expertise in seeking
government and private grants and awards for future and present
research projects.

udetection.

museums institutions

The Company is committed to the success of its
Customers, Employees and Shareholders through leadership in Life Science, High
Technology and Service.

The company is planning to utilize Dr.

astronomy establishments

Department of Health and Human
Services (HHS) today announced a new simplified mechanism for all research
institutions that receive HHS funding or support to obtain an assurance of
compliance with HHS regulations for the protection of human subjects." The Common
Rule is based on the HHS regulations in force since 1974 and requires that
federally supported research involving human subjects be covered by an
assurance.
OHRP is a component of the Office of the Secretary , Office of the
Assistant Secretary for Health, Office of Public Health and Science.
He has received several grants and fellowships from the National
Institutes of Health, American Cancer Society, BRSG Research Support,
Sterling Drug Company, American Heart Association, United Liver
Association , the Du Pont and Merck Pharmaceutical Company, and many
other organizations.

earth science

The RNAi Consortium (TRC) shRNA Libraries are Made Available to Scientific
Community

ST. The other Common Rule agencies now have the option of using -- or
directing their grantees to use -- the HHS FWA, rather than operating their
own assurance systems, and a large majority of the agencies are expected to
rely on the FWA. During the same period he has also acted as the Director
of Research at the Department of Cardiothoracic Surgery.

funding gardens

The MISSION TRC shRNA
clone libraries will comprise a comprehensive collection of 150,000 pre-cloned
lentiviral-based shRNA vector constructs targeting 15,000 human genes (MISSION
TRC-Hs1.com/rnai .
These risks and uncertainties include, among other things, the funding
of amounts of capital adequate to provide for our working capital
needs and our timely repayment of debt, our ability to timely and cost
effectively complete the development and testing of our products
targeted to the bio-chemical market, our ability to commercially
produce our products on a profitable basis, commercial acceptance of
our products, product price volatility, product demand, market
competition and general economic conditions, and other factors
described in the Company's filings with the Securities and Exchange
Commission.

societies botany

Sigma-Aldrich recently
entered into an agreement with MIT to serve as a scientific collaborator and
distribution partner of TRC, which is comprised of seven world-class academic
research institutions and four commercial life science research partners. His
experience in writing and receiving government grants will aid the
Company as we continue to market our technology to both the private
and public sectors," says Jacques Tizabi, UDTT's chairman and CEO. Dr. Cramer's major areas of research interest and experience
include Pathology, Immunology, Genetics, and Transplantation Biology.

arboreta gardens

"The MISSION TRC collection is the first comprehensive
lentiviral-based pre-cloned shRNA library, and we plan to facilitate its use
by researchers worldwide for advancement of functional genomics research. The Company's biochemical and organic chemical products
and kits are used in scientific and genomic research, biotechnology ,
pharmaceutical development, the diagnosis of disease and as key components in
pharmaceutical and other high technology manufacturing. Cramer to its scientific advisory board. From 1978-1989 Dr . Cramer
has been a consultant to the Department of Abdominal Organ
Transplantation from 2003 to present.

oceanography gardens

com .
"We are pleased to provide this robust and flexible simplification to our
assurance system," said Bernard A.V. OHRP
works to support and strengthen the nation's system for protecting those who
volunteer to participate in research that is conducted or supported by HHS
agencies .gov/news.D.

astronomy herbaria

Design and development
of the TRC libraries is being led by the Broad Institute of the Massachusetts
Institute of Technology (MIT) and Harvard University. In addition, the clones may be
combined with lentiviral packaging systems for infection and integration into
the genomes of traditionally difficult cell lines such as primary cells and
non-dividing cells.S. Dr. From 1998 to 2003 he has been a research professor at the
departments of Cardiothoracic Surgery and Molecular Microbiology and
Immunology.

associations societies

"
For more information about MISSION shRNA clone collections, please visit
us online at http://sigma-aldrich.

Universal Detection Technology Announces Appointment of Dr. Donald V. Cramer to Its Scientific Advisory Board

Donald V.invrel. We undertake no obligation and do not intend to revise or
update publicly any forward looking statements for any reason.

institutions funding

Sigma-Aldrich Launches MISSION(TM) RNAi Product Offering

gov/ohrp/assurances/assurances_index .

Note: All HHS press releases, fact sheets and other press materials are
available at http://www., Ph.

About Universal Detection Technology

Universal Detection Technology (UDTT), founded in 1973, is a
developer of monitoring technologies, including bio-terrorism
detection devices. Management believes that the Company's technology,
together with third party technologies and devices, has positioned it
to capitalize on growth and value opportunities related to Homeland
Security.

topic science

To date, the collection includes approximately 35,000 shRNA vector
constructs targeting 5,300 human genes and 2,200 mouse genes.
Sigma-Aldrich operates in 35 countries and has over 6,800 employees providing
excellent service worldwide.M. Cramer, D.V. UDTT, in cooperation with NASA's Jet Propulsion Laboratory
(JPL), has developed a bio-terror `smoke' detector, which combines
JPL's spore detection technology with UDTT's aerosol capture device.
For more information, please visit http://udtt.

associations zoos

Compared to existing
synthetic siRNAs, the MISSION shRNA clones will provide a renewable resource
that can be propagated as needed. Upon transfection of the purified plasmid
DNA, transient or stable gene silencing may be achieved depending upon the
desired duration of phenotypic observation. For more information about Sigma-Aldrich, please visit
its award-winning web site at http://sigma-aldrich.hhs.
Dr.

botany societies

A
single Web-based "Federalwide Assurance" (FWA) will replace the several types
of assurances under which research institutions had operated in the past . Cramer has years of professional experience
including academic and administrative responsibilities with various
public and private organizations.

museums aquariums

HHS Announces Simplified System for Research Protection Assurances

, Ph."
Because of the multiple types of assurances in use, HHS will allow
research institutions to transition to the new system over the next 11 months.M. Donald V.