Stratophase Ltd Release: Optical Biodetector Successfully Detects Anthrax and Ricin Toxin in Tests
Published: Aug 16, 2011
The project demonstrated the feasibility of using the complete system to collect biological factors from the atmosphere, concentrate them in a liquid sample, and then detect pre-defined hazardous materials within the sample using Stratophase’s optical microchip detector. The microchip was also tested separately in laboratories at Dstl’s bioagent exposure facility with real targets including several well-known bio-warfare factors, such as B. anthracis (the causative agent of anthrax) and Ricin toxin. This microchip employs Stratophase’s proprietary optical technology in combination with immunoassay receptor chemistry to detect biological agents with a high degree of specificity and sensitivity, forming an essential part of the prototype system.
The optical microchip technology developed by Stratophase detects changes in the refractive index of a liquid passing over its surface. When used as a bio-detector, the chip is coated with specific antibodies that bind with high specificity and affinity to biological targets. When a given toxin, bacteria or virus is present in the sample it binds and triggers a positive detection.
In response to the successful completion of the project, Richard Williams, Stratophase’s chief executive, commented: “The PIBBDT project represents a major development in the generation of a specific biological detection technology for use by the UK’s armed forces. This prototype system is an excellent example of how Stratophase’s robust, flexible optical microchip technology can be used to perform precise and dependable measurements.”
To find out more, visit the new Stratophase website at www.stratophase.com or visit our stand at this year’s Biotechnica in Hannover, Germany (11 - 13 October 2011).
Stratophase is a VC-funded spin-out from the University of Southampton in the UK. Its unique technology is an optical microchip sensor which measures chemical processes and detects biological targets. This core optical measurement technology can be realised in a vast array of sensing heads, offering a wide variety of system configurations applicable to a broad spectrum of industries including chemical and biochemical production as well as biological detection.