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Optical oxygen sensors comprise an indicator fluorophore in a sol-gel host matrix that’s applied to an adhesive patch or fiber tip. The indicator changes optical properties in response to analytes in its environment and a fluorometer measures the response.
Ocean Insight optical oxygen sensing materials can be applied to various surfaces including probes and patches, making them customizable to each application. Because the sensors consume no oxygen, they can be used in continuous contact with viscous samples. Also, unlike oxygen electrodes, optical oxygen sensors do not require continuous stirring.