Hydrogen Sulfide (H2S)SOLID-STATE ELECTROCHEMICAL SENSOR (New) - Synkera Technologies - #1

Synkera Technologies is developing a line of solid-state amperometric gas sensors for the detection of toxic gases. These novel sensors are expected to be lower cost and more robust than traditional electrochemical sensors (which utilize a liquid electrolyte) while maintaining similar performance. The current development focus is on hydrogen sulfide, carbon monoxide and ethanol. Many other gases (including nitrogen oxides, sulfur dioxide and chlorine) are planned for eventual development.

Synkera's solid-state amperometric gas sensors are based on the use of solid polymer electrolytes in conjunction with microelectrodes in a novel band geometry. By eliminating the gas permeable membranes that are traditionally used to seal electrochemical sensors, which contain liquid electrolytes, the gas diffusion path is reduced and sensor response times may be improved. Also, the elimination of liquid electrolytes eliminates the possibility of sensor failures due to leakage under harsh environmental conditions. Additionally, the multilayer manufacturing methods used to produce the sensor elements allows for fabrication of a very small sensor element, with significant cost savings, when compared to traditional electrochemical sensors.

• Linear output

• Low detection limits (sub ppm H₂S detection)

• Low power (ambient temperature) operation

• Leak free

• Small size

• Rugged

• Low cost

• Solid state

• Sensor elements can be directly integrated with electronics for applications such as Smartcards

Synkera is currently working on H₂S sensor development under a SBIR Phase II grant funded by the NIH. It is anticipated that H₂S sensors based on this technology will be available for sale by Summer 2005. Development work on carbon monoxide and ethanol sensors has been proposed, and is expected to commence during 2005, with prototype sensors available by the end of 2005.

Partnerships are of interest for the continued development of solid-state amperometric gas sensors. This includes the development of sensors for the detection of other gases, sensor evaluation, and instrument development. To discuss this further opportunities or if you would like additional information, please contact:

Michael Anderson VP Marketing

Debra Deininger Product Manager

720-494-8401 x 111 manderson@synkera.com

720-494-8401 x 105 ddeininger@synkera.com