Altair
Nanotechnologies has assembled a unique team of material scientists who,
coupled with collaborative ventures with industry partners and leading
academic centers, has pioneered an impressive array of intellectual
property and product achievements. For
additional information on Altair and its nano-materials , visit
www.

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com. The company expressly disclaims any obligation to
update or revise any forward -looking statements found herein to reflect any
changes in company expectations or results or any change in events.

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Nanogen's ten years of pioneering research involving
nanotechnology may also have future applications in medical diagnostics,
biowarfare and other industries.nanogen. Prior to modeMD , Graham held several
senior roles including Executive Vice President of Sales for RetailOne, and
Executive Vice President of Sales, Marketing and Customer Service for Be,
Inc.

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Nanogen disclaims any intent or obligation to update these
forward-looking statements., a digital media operating system company which successfully completed
a $200 million IPO.

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"

About Roy Graham

Roy Graham brings to Altair more than 30 years of industry experience in
senior management roles with startup and publicly traded companies.

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The new nanotechnology patent relates to a nanofabrication technology that
combines an electric field assisted manufacturing platform and programmable
self-assembling nanostructures (for example, DNA building blocks) for the
fabrication of a wide range of unique higher -order nano and microscale
devices, structures and materials. Graham received a Bachelor
of Science degree with honors from Sussex University in the United Kingdom. The
company has a scalable manufacturing capability to meet emerging
nanomaterials demands, with capacity today to produce hundreds of tons of
nanomaterials., Altair Nanomaterials, Altairnano,
TiNano, RenaZorb, NanoCheck, TiNano Spheres and the Hydrochloride
Pigment Process are trademarks or registered trademarks of Altair
Nanotechnologies , Inc. In addition, other risks are
identified in the company's most recent Annual Report on Form 10-K, as
filed with the SEC.

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com

Altair Nanotechnologies, Inc.

Altair Nanotechnologies , Inc. These risks and
uncertainties include, without limitation, the risks that Altair expenses
will rise during the following quarters as a result of unexpected cash or
non-cash expenses; Altair 's numerous development stage products will not be
developed to the point of commercialization or that, even if
commercialized, no market will exist for such products or Altair will fail
to effectively market to customers in a market, the risks that Altair will
be unable to enter into license agreements regarding its pigment process
(AHPP), RenaZorb, its TiNano Sphere or other developing products, that even
if Altair enters into such license agreements, short term revenues from
such agreements will not be sufficient to fund Altair's operations in the
long run, and that animal testing or future testing of RenaZorb or other
products of the company will not be successful and that development will
need to be terminated.

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0943158B1, "Affinity Based
Self-Assembly Systems and Devices for Photonic and Electronic Applications,"
by the European Patent Office. These forward-looking statements speak only as of the
date hereof. He has an extensive emerging technology
background and proven track record in driving revenue, building brand,
securing strategic partnerships, and building sales and customer support
teams, which will serve us well as we launch into commercialization during
2005 . His
industry experience includes the high-tech, telecommunications, financial
services and healthcare markets.

Forward-Looking Statements

This release may contain forward-looking statements as well as historical
information.

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(Nasdaq: NGEN), developer of advanced diagnostic products, announced today
that it has been issued European Patent No.

Graham comes to Altair from modeMD , Inc.

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Alan J. He has also held senior vice president and
director-level sales and marketing roles with Wyse Technology, Tandem
Computers, and Digital Equipment Corporation. Such forward-looking statements speak only as of the
date of this release.

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Nanogen has exclusively licensed the interests of the University
of California where there is joint inventorship. For additional information please visit
Nanogen's website at http://www.com.

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, a developer of wireless
application software and systems for the healthcare industry, where he held
the position of President and CEO.

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The U. The SynX subsidiary offers a line of
point-of-care diagnostic tests and is building expertise in cardiac related
health conditions."

In this role, Graham is tasked with driving worldwide revenue, increasing
market awareness and securing collaborative partnerships.

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S. (NASDAQ: ALTI)
announced today that it has appointed Roy Graham to the position of Senior
Vice President, Sales and Marketing. Gotcher.

Altair Nanotechnologies has developed robust proprietary technology
platforms for manufacturing a variety of crystalline and non-crystalline
nanomaterials of unique structure, performance, quality and cost .

The company is organized into two divisions: Life Sciences and Performance
Materials. The Life Sciences Division is pursuing market applications in
pharmaceuticals, drug delivery, dental materials, cosmetics and other
medical markets.

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The position is
also responsible for functional areas including sales, marketing, customer
support, business development and corporate development .

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S. "We have aggressive revenue
growth objectives and commercialization milestones projected for 2005 and
believe it is crucial to begin the year with a seasoned sales and marketing
executive of Roy's caliber.
I look forward to working with Altair's management team, as we build an
outstanding sales, marketing and customer support team.

photomask nanotubes

The nanofabrication platform and process
would be used for: producing nanoscale electronic and photonic devices and
structures; assembly of nanostructures and submicron components onto silicon
wafers and other materials; integration of nanostructures within preformed
microelectronic and optoelectronic structures; production of nanoparticles
(for example , photonic crystals, nanospheres and quantum dots); and
fabrication of selectively addressable DNA nanoarray substrates and materials.

Altair Nanotechnologies Appoints Senior Vice President of Sales and Marketing

nanopowders nanotube

Nanogen Issued European Patent for Key Nanomanufacturing and Nanotechnology Methods

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Nanogen's advanced diagnostics provide physicians and patients worldwide
with sophisticated information to predict, diagnose and treat disease.

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patent was issued in December 2003.

About Nanogen, Inc.
Altair Nanotechnologies, Inc.

Altair Nanotechnologies, through product innovation, is a leading supplier
of advanced ceramic nanomaterial technology worldwide.

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The European patent is jointly owned by Nanotronics, Inc. Nanogen also offers a broad portfolio of patented
nucleic acids chemistries and molecular tools that accelerate genomic analysis
and are compatible with many systems. In general, Altair is, and expects to be in the
immediate future, dependent upon funds generated from sales of securities,
grants, testing agreements, and licensing agreements to fund its testing,
development and ongoing operations.

hydrophobic paramagnetic

This patent is similar to U .
The patent represents a unique nanofabrication technology that combines
the best aspects of top-down microfabrication processes with bottom-up
biological self-assembly processes for producing novel nanodevices and
nanostructures.

Nanogen Forward-Looking Statement
This press release contains forward-looking statements that are subject to
risks and uncertainties that could cause actual results to differ materially
from those set forth in the forward-looking statements , including whether
patents owned or licensed by Nanogen will be developed into products, whether
the patents owned by Nanogen offer any protection against competitors with
competing technologies , whether products under development can be successfully
developed and commercialized, whether results reported by our customers or
partners can be identically replicated, and other risks and uncertainties
discussed under the caption "Factors That May Affect Results" and elsewhere in
Nanogen's Form 10-K or Form 10-Q most recently filed with the Securities and
Exchange Commission.

http://www. Forward-looking statements, which are included in accordance
with the "safe harbor" provisions of the Private Securities Litigation
Reform Act of 1995, may involve risks, uncertainties and other factors that
may cause the company 's actual results and performance in future periods to
be materially different from any future results or performance suggested by
the forward-looking statements in this release.

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Research and clinical reference labs use the highly accurate and reliable
NanoChip(R) Molecular Biology Workstation, NanoChip (R) Electronic Microarray
and broad suite of analyte specific reagents to develop diagnostic tests for
variety of diseases.

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SAN DIEGO, Nanogen, Inc. Patent
6,652,808, the parent of a series of patent applications that significantly
broaden Nanogen's proprietary position in the nanotechnology and
nanomanufacturing areas.

"This is an opportune time to join the Altair team," commented Graham. "We
are seeing the nanotechnology sector moving rapidly toward
commercialization, and Altair is uniquely positioned to capitalize on this
burgeoning industry and secure a leadership position in its target markets. The Performance Materials Division is pursuing market
applications in Advanced Materials for paints and coatings; titanium metal
manufacturing, catalysts and water treatment; and alternative energy.altairnano.

qinetiq confocal

, a
wholly owned subsidiary of Nanogen, and the Regents of the University of
California.

"We are pleased to have Roy join our executive team," said Altair
Nanotechnologies CEO Dr.altairnano.