Smartphone based optical biosensor for the detection of urea in saliva

•We developed a noninvasive smartphone based biosensor for urea using saliva as sample, which is first such report.•The sensor was fabricated by co-immobilization of urease & pH indicator on filter paper strip which changed color with reaction to salivary urea.•This color change can be used to d...

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Bibliographische Detailangaben

Veröffentlicht in:	Sensors and actuators. B, Chemical Chemical, 2018-09, Vol.269, p.346-353
Hauptverfasser:	Soni, Anuradha, Surana, Rajat Kumar, Jha, Sandeep Kumar
Format:	Artikel
Sprache:	eng
Schlagworte:	Biosensors Body fluids Calibration Color Filter paper Non-invasive biosensor Optical biosensor Pixels Response time Saliva Salivary urea Smartphone based biosensor Smartphones Ureas
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