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RF Remote Blood Glu...
RF Remote Blood Glucose Sensor and a Microfluidic Vascular Phantom for Sensor Validation
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- Yunos, Muhammad Farhan Affendi Mohamad (författare)
- Int Islamic Univ Malaysia, Malaysia
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- Manczak, Remi (författare)
- Univ Limoges, France
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- Guines, Cyril (författare)
- Univ Limoges, France
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- Mansor, Ahmad Fairuzabadi Mohd (författare)
- Int Islamic Univ Malaysia, Malaysia
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- Mak, Wing Cheung (författare)
- Linköpings universitet,Sensor- och aktuatorsystem,Tekniska fakulteten
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- Khan, Sheroz (författare)
- Onaizah Coll Engn, Saudi Arabia
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- Ramli, Noor Amalina (författare)
- Int Islamic Univ Malaysia, Malaysia
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- Pothier, Arnaud (författare)
- Univ Limoges, France
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- Nordin, Anis Nurashikin (författare)
- Int Islamic Univ Malaysia, Malaysia
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(creator_code:org_t)
- 2021-12-03
- 2021
- Engelska.
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Ingår i: Biosensors. - : MDPI. - 2079-6374. ; 11:12
- Relaterad länk:
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https://liu.diva-por... (primary) (Raw object)
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https://www.mdpi.com...
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https://urn.kb.se/re...
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https://doi.org/10.3...
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Abstract
Ämnesord
Stäng
- Diabetes has become a major health problem in society. Invasive glucometers, although precise, only provide discrete measurements at specific times and are unsuitable for long-term monitoring due to the injuries caused on skin and the prohibitive cost of disposables. Remote, continuous, self-monitoring of blood sugar levels allows for active and better management of diabetics. In this work, we present a radio frequency (RF) sensor based on a stepped impedance resonator for remote blood glucose monitoring. When placed on top of a human hand, this RF interdigital sensor allows detection of variation in blood sugar levels by monitoring the changes in the dielectric constant of the material underneath. The designed stepped impedance resonator operates at 3.528 GHz with a Q factor of 1455. A microfluidic device structure that imitates the blood veins in the human hand was fabricated in PDMS to validate that the sensor can measure changes in glucose concentrations. To test the RF sensor, glucose solutions with concentrations ranging from 0 to 240 mg/dL were injected into the fluidic channels and placed underneath the RF sensor. The shifts in the resonance frequencies of the RF sensor were measured using a network analyzer via its S-11 parameters. Based on the change in resonance frequencies, the sensitivity of the biosensor was found to be 264.2 kHz/mg center dot dL(-1) and its LOD was calculated to be 29.89 mg/dL.
Ämnesord
- NATURVETENSKAP -- Biologi -- Biokemi och molekylärbiologi (hsv//swe)
- NATURAL SCIENCES -- Biological Sciences -- Biochemistry and Molecular Biology (hsv//eng)
Nyckelord
- blood glucose monitoring; diabetes; non-invasive sensor; PDMS; vascular phantom; glucometer; RF sensor
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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