Cellexus Biosystems installs first customer CellMaker Lite2 disposable bioreactor in Ireland

    PRESS RELEASE

February 11th 2008

Cellexus Biosystems installs first customer CellMaker Lite2 disposable bioreactor in Ireland

Cellexus Biosystems plc (PLUS Markets: CBIO), the specialist in the design, manufacture and commercialisation of
novel disposable technology for growing cells, announced it has sold a CellMaker Lite2(TM) disposable bioreactor to
its first customer in Ireland.  The customer is Dr Amir Khan, who is a Principal Investigator at Trinity College
in Dublin.

Dr Khan is using the system to grow E.coli to produce proteins for structural studies.

Commenting on his reasons for purchase, Dr Khan commented:

"The production of milligram amounts of recombinant human proteins in E.coli for subsequent purification,
crystallization and X-ray structure determination is essential for the research goals of my laboratory. The
CellMaker Lite2 was an attractive option over vessel fermentors for its ease-of-use and minimal maintenance
requirements for my small research group. The utility of the system has already been demonstrated in the case of a
marginally folded protein, whose levels of soluble expression exceeded those of traditional shaker-incubators by 3-
4 fold in our hands.

Dr Ian Taylor, Commercial Director for Cellexus Biosystems, commented:

"We are very pleased to have a customer unit in Dublin since this area represents such a hotspot within the
biopharmaceutical community. It is a great location for many potential customers from academia and industry to
visit and see the system. I am also delighted that Dr Khan is having so much immediate tangible success using the
system, with demonstrated protein yield improvements."

More information about the CellMaker Lite2 and other disposable systems can be can be found on the web site
www.cellexusbiosystems.com.

Ends

Further information:

Cellexus Biosystems plc:

Dr Ian Taylor
Commercial Director
12 Ramsay Court, Hinchingbrooke Business Park
Huntingdon, Cambridgeshire PE29 6FY
United Kingdom

Tel: [phone]

[e-mail]

www.cellexusbiosystems.com

Media enquiries:
Bishopsgate Communications Ltd.
Nick Farmer
[phone]
[e-mail]

Trade Press enquiries:
Jessica Auton
[phone]
[e-mail]

Notes to editors:

Cellexus Biosystems sells high performance, single-use, bioreactors to the biopharmaceutical industry.  Our
products have proven performance advantages and save our customers time, expense and reduce risk.
Biopharmaceuticals are molecules made by cells cultured in vessels called bioreactors.
Reducing the time to market is driving every biopharmaceutical company to adopt single-use technologies.  These
are less expensive to buy, faster to adopt and have shorter turnaround times between experiments or batches.

The bioreactor systems we sell are:  the CellMaker Lite2(TM) (for bacteria and yeast cells) and the CellMaker PLUS(TM)
(a highly sophisticated system for mammalian and insect cells, in addition to bacteria and yeast).  The single-use
element is a medical-grade bag in which the cells are cultured.  There are two variants of these cell culture
bags:  CellexusBag(TM) (bacteria and yeast cells) and the HybridBag(TM) (bacteria and yeast cells mammalian cells and
insect cells).

Our vision is to be a major supplier of single-use technologies to the biopharmaceutical industry, provide cutting-
edge technologies and to be recognized as a consistent innovator in our vertical market.  The Company has a wholly
owned Subsidiary in the USA.  The majority of our products are purchased by customers in the USA and EU.

Images of the CellMaker Lite2 can be downloaded from the Company's website
http://www.cellexusbiosystems.com/index_files/CellexusBiosystemsMediaResources.htm

								
Cellexus Biosystems PLC