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We report here a lasing “turn-on” sensory mechanism for highly sensitive vapor detection of amines, utilizing a polyfluorene/palladium tetraphenylporphyrin (PFO/PdTPP) composite film as the sensing medium. A rational ratio of PdTPP could effectively quench the fluorescence of PFO, and the fluorescence recovery occurs after electron donating amine binds to PdTPP, which resulting in a “turn-on” lasing...
One of the main challenges in developing wireless biometric sensors is the requirement for integration of various systems into a very compact device. Such systems include sensing units, conditioning electronics, transmitters and power supplies. In this work, a novel system integration architecture is presented. A unique feature of this new architecture is that the sub-systems are selected and designed...
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