Low Energy Fluence Photoacoustic Spectroscopy for Non-invasive Glucose Monitor : Coherent photoacoustic beam orthogonally propagating to light beam

Determining and improving the wellbeing of people is one of the priorities of the OECD countries. Nowadays many sensors allow monitoring different parameters in regard to the wellbeing of people. These sensors can be deployed in smartphones, clothes or accessories like watches. Many studies have been performed on wearable devices that monitor certain aspects of the health of people, especially for specific diseases. In this paper, we propose a non-invasive low-cost and low-energy physical wellbeing monitoring system that provides a wellness score based on the obtained data. We present the architecture of the system and the disposition of the sensors on the sock. The algorithm of the system is presented as well. The wellness threshold evaluation module allows determining if the monitored parameter is within healthy ranges. The message forwarding module allows decreasing the energy consumption of the system by detecting the presence of alerts or changes in the data. Finally, a simulation was performed in order to determine the energy consumption of the system. Results show that our algorithm allows saving 44.9% of the initial energy in 10,000 min for healthy people.

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Resonant photoacoustic spectroscopy for a non-invasive blood glucose monitoring: human interface and temperature correction technology

Photons Plus Ultrasound: Imaging and Sensing 2019 ◽

10.1117/12.2508095 ◽

2019 ◽

Author(s):

Kayo Waki ◽

Yujiro Tanaka ◽

Takuro Tajima ◽

Michiko Seyama

Keyword(s):

Blood Glucose ◽

Photoacoustic Spectroscopy ◽

Glucose Monitoring ◽

Temperature Correction ◽

Blood Glucose Monitoring ◽

Human Interface ◽

Non Invasive

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Photoacoustic spectroscopy as a non-invasive tool for farmacokinetic studies in blood

10.1063/1.3682874 ◽

2011 ◽

Author(s):

S. Stolik ◽

S. A. Tomás ◽

E. Ramón-Gallegos ◽

J. A. Delgado-Atencio ◽

Luis Manuel Montaño Zentina ◽

...

Keyword(s):

Photoacoustic Spectroscopy ◽

Non Invasive

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Magnetic Resonance Spectroscopy in Migraine

Cephalalgia ◽

10.1046/j.1468-2982.1995.1504323.x ◽

1995 ◽

Vol 15 (4) ◽

pp. 323-327 ◽

Cited By ~ 20

Author(s):

P Montagna

Keyword(s):

Energy Metabolism ◽

Magnetic Resonance ◽

Magnetic Resonance Spectroscopy ◽

Energy Demand ◽

Low Energy ◽

Resonance Spectroscopy ◽

Non Invasive ◽

Relevant Role ◽

Brain Ph ◽

Brain Energy

31-phosphorus Magnetic Resonance Spectroscopy (MRS) is a technique developed for the non-invasive study of energy metabolism in living subjects. It determines the concentrations of high and low energy phosphates in resting and activated conditions, and of intracellular pH. 31P-MRS has been applied to the study of migraine, both during and in between attacks. Intracellular brain pH remains unchanged during the migraine attack, suggesting that ischemia does not play a relevant role in the origin of the neuro-logical signs. During and in-between attacks, migraineurs display abnormalities in energy metabolism of brain and muscle, consisting of reduced levels of phosphocreatine, reduced cellular-free energy and increased rate of ATP biosynthesis. We suggest that these abnormalities in energy metabolism predispose migraineurs to develop an attack under conditions of increased brain energy demand.

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