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Technologies

Sensing Approach

Nanoporous Gold Electrocatalytic Sensor Element

Exhalix has developed a proprietary and patented electrocatalytic sensor element for its gas biomarker detection platform. We have successfully combined this highly sensitive sensor with unique sampling methods to non-intrusively measure biomarkers that are indications of different disorders. A fundamentally different approach than standard electrochemical sensing, electrocatalysis is based on metallized Nafion® or solid polymer electrolyte membranes.  The nanoporous metallic electrocatalyst in direct contact with gas phase molecules reacts to generate a measurable signal (i.e. Clark-type sensor). The characteristics of an electrocatalytic sensor combined with extremely high surface area leads to high mass transfer, high reaction rates, prominent amperometric signal, and rapid rise and fall in the signal allowing accurate real-time detection.

We have successfully used electrocatalytic sensors to detect multiple gasses in ppb levels, including H2S, NO, and ethylene. Our ethylene sensor has already been successfully commercialized and deployed for non-medical applications (www.fluid-analytics.com).

SEM Image of Gold Electrocatalyst at 100,000X Magnification
H2S Sensor Linearity

Nanoporous Gold Electrocatalytic Sensor Element

Exhalix has developed a proprietary and patented electrocatalytic sensor element for its gas biomarker detection platform. We have successfully combined this highly sensitive sensor with unique sampling methods to non-intrusively measure biomarkers that are indications of different disorders. A fundamentally different approach than standard electrochemical sensing, electrocatalysis is based on metallized Nafion® or solid polymer electrolyte membranes.  The nanoporous metallic electrocatalyst in direct contact with gas phase molecules reacts to generate a measurable signal (i.e. Clark-type sensor). The characteristics of an electrocatalytic sensor combined with extremely high surface area leads to high mass transfer, high reaction rates, prominent amperometric signal, and rapid rise and fall in the signal allowing accurate real-time detection.

We have successfully used electrocatalytic sensors to detect multiple gasses in ppb levels, including H2S, NO, and ethylene. Our ethylene sensor has already been successfully commercialized and deployed for non-medical applications (www.fluid-analytics.com).

SEM Image of Gold Electrocatalyst at 100,000X Magnification
H2S Sensor Linearity

Sensors

H2S-1010™ Desktop Hydrogen Sulfide Sensor

H2S-1010™ is a complete system including hardware, software and accessories to detect trace levels (low ppb) of Hydrogen Sulfide (H2S). H2S-1010™ is able to provide extremely rapid and linear responses to H2S from 2 to 300 ppb, with a tested limit-of-detection of 2 ppb (SNR>3).

H2S-1010™ has menu-driven options for adjustment of the measurement protocols and sampling parameters to allow the system to be configured to measurement needs. With H2S-1010™, a reading can be obtained within a few seconds with just a push of a button.

The device is an ideal alternative to Gas Chromatography (GC) or Mass Spectrometry (MS), which are cost prohibitive and cumbersome for most laboratory studies.

H2S-1010™ Device

H2S-510™ Miniature Hydrogen Sulfide Sensor

A miniature version of the H2S sensor, H2S-510™, provides the performance of H2S-1010™ in a battery operated compact formfactor to allow full mobility. The interface software to control the device settings may run on personal computer or a mobile phone.

The underlying components of our H2S sensor product family are low cost, compact and configurable for easy adoption to meet many different application end-product requirements.

H2S-510™ Device

H2S-1010™ Desktop Hydrogen Sulfide Sensor

H2S-1010™ is a complete system including hardware, software and accessories to detect trace levels (low ppb) of Hydrogen Sulfide (H2S). H2S-1010™ is able to provide extremely rapid and linear responses to H2S from 2 to 300 ppb, with a tested limit-of-detection of 2 ppb (SNR>3).

H2S-1010™ has menu-driven options for adjustment of the measurement protocols and sampling parameters to allow the system to be configured to measurement needs. With H2S-1010™, a reading can be obtained within a few seconds with just a push of a button.

The device is an ideal alternative to Gas Chromatography (GC) or Mass Spectrometry (MS), which are cost prohibitive and cumbersome for most laboratory studies.

H2S-1010™ Device

H2S-510™ Miniature Hydrogen Sulfide Sensor

A miniature version of the H2S sensor, H2S-510™, provides the performance of H2S-1010™ in a battery operated compact formfactor to allow full mobility. The interface software to control the device settings may run on personal computer or a mobile phone.

The underlying components of our H2S sensor product family are low cost, compact and configurable for easy adoption to meet many different application end-product requirements.

H2S-510™ Device

Dermal Interface

DermalPuck™ Samplers

DermalPuck™

Designed to comfortably attach to the skin and collect transdermal gases for sampling during a few minute collection period. The proprietary DermalPuck™ provides a sample to the device without interference or loss of sample, in both a flexible as well as rigid materials.

DermalPuck™

Designed to comfortably attach to the skin and collect transdermal gases for sampling during a few minute collection period. The proprietary DermalPuck™ provides a sample to the device without interference or loss of sample, in both a flexible as well as rigid materials.

SamplerDressing™

SamplerDressing™

This patent-pending flexible dressing is designed to cover a wound area for treatment, while providing a sample of transdermal H2S both during treatment and in between treatments.

SamplerDressing™

This patent-pending flexible dressing is designed to cover a wound area for treatment, while providing a sample of transdermal H2S both during treatment and in between treatments.