Journal
BIOMEDICAL OPTICS EXPRESS
Volume 5, Issue 6, Pages 1926-1940Publisher
OPTICAL SOC AMER
DOI: 10.1364/BOE.5.001926
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Funding
- Spanish Ministerio de Economia y Competitividad
- Fondo Europeo de Desarrollo Regional (FEDER) [FIS2010-16646]
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The ability to extract different bio-medical parameters from one single wristwatch device can be very applicable. The wearable device that is presented in this paper is based on two optical approaches. The first is the extraction and separation of remote vibration sources and the second is the rotation of linearly polarized light by certain materials exposed to magnetic fields. The technique is based on tracking of temporal changes of reflected secondary speckles produced in the wrist when being illuminated by a laser beam. Change in skin's temporal vibration profile together with change in the magnetic medium that is generated by time varied glucose concentration caused these temporal changes. In this paper we present experimental tests which are the first step towards an in vivo noncontact device for detection of glucose concentration in blood. The paper also shows very preliminary results for qualitative capability for indication of dehydration. (C) 2014 Optical Society of America
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