Design of a system on-chip-based device with embedded temperature sensing, fall detection and acoustic readout circuit for geriatric care monitoring

Silverio, Angelito A.; Chung, Wen-Yaw

doi:10.1109/innocit.2017.8319129

Cited by 1 publication

(4 citation statements)

References 6 publications

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“…The EGFET's pH sensitivity has also been verified since the trapping of Ca 2+ ions by the immobilized ionophore causes the pH to change proportionally which is detected by the EGFET. The average sensitivities of these sensors to pH are: 45.6 mV/pH (ISFET), and 53.2 mV/pH (EGFET) (14).…”

Section: Potentiometric Sensing Resultsmentioning

confidence: 99%

“…The circuit is based from (13,14) which utilizes a self-biased driver, (OTA2 and R5 -R8), that tracks the difference between the applied potential VDD/2 and the FETsensor source potential; this maintains the drain-source voltage (V DS ) of the active FET sensor. The readout circuit also consists of a floating bridge circuit (OTA1 and R1 -R4) that sets up the V DS and the FET-sensor drain-source current (I DS ).…”

Section: ( )mentioning

confidence: 99%

“…The circuit also can have an auxiliary amplifier for sensitivity adjustments. This can be configured into a variable-gain amplifier which can couple an on-chip temperature sensor for compensation (13,14). Based on the practical research of urolithiasis, experiments were conducted on the concentrations of hydrogen ions and calcium ions to obtain linear measurement results; and through the integration of digital signal processing circuit to complete the multiparameter potentiometric sensing platform.…”

Section: ( )mentioning

confidence: 99%

“…The circuit consists of a current source front-end, formed by a Folded Cascoded Operational Transconductance Amplifier (FCOTA) and the PMOS transistor M10. The front-end utilizes a PMOS transistor to maintain sensor current direction, from WE and CE and also to generate a low input impedance node necessary to have a wide input sensing range (14). The potentiostat is created by utilizing the analog ground feature of an OTA.…”

Section: Amperometric Sensingmentioning

confidence: 99%

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(Invited)Point-of-Care Based System Development for Urolithiasis Recurrence Prevention

Chung
¹
,

Heythem
²
,

Silverio
³

et al. 2018

ECS Trans.

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0

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This research presents a Point-Of-Care Test (POCT) system developed for urolithiasis recurrence prevention. The system can be used to assist a patient in assessing the condition of his urinary system through urine quality indicators pH, Ca2+, uric acid, conductivity, etc. Several major types of sensors were used to monitor key parameters in human’s urine. Ion Sensitive Field Effect Transistor and Extended Gate Field Effect Transistor potentiometric-type sensors are used for pH and Ca2+ monitoring, the enzyme based two or three-electrode amperometric type sensor is used for urine’s uric acid sensing, and the self-developed electrodes are used for conductivity measuring. The prototype with these sensors and CMOS readout circuits were integrated and tested in the laboratory and clinically. The test results show the acceptable and promising performance referred to corresponding meters for individual parameter sensing. Through the following data analysis and risk evaluation by urologists, the developed POCT system has a potential value and contribution to kidney stone of urolithiasis recurrence prevention.

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Section: Potentiometric Sensing Resultsmentioning
confidence: 99%

Section: ( )mentioning
confidence: 99%

Section: Amperometric Sensingmentioning
confidence: 99%

See 2 more Smart Citations
(Invited)Point-of-Care Based System Development for Urolithiasis Recurrence Prevention
Chung
¹
,
Heythem
²
,
Silverio
³

et al. 2018
ECS Trans.
0
0
0
0
View full text Add to dashboard Cite
This research presents a Point-Of-Care Test (POCT) system developed for urolithiasis recurrence prevention. The system can be used to assist a patient in assessing the condition of his urinary system through urine quality indicators pH, Ca2+, uric acid, conductivity, etc. Several major types of sensors were used to monitor key parameters in human’s urine. Ion Sensitive Field Effect Transistor and Extended Gate Field Effect Transistor potentiometric-type sensors are used for pH and Ca2+ monitoring, the enzyme based two or three-electrode amperometric type sensor is used for urine’s uric acid sensing, and the self-developed electrodes are used for conductivity measuring. The prototype with these sensors and CMOS readout circuits were integrated and tested in the laboratory and clinically. The test results show the acceptable and promising performance referred to corresponding meters for individual parameter sensing. Through the following data analysis and risk evaluation by urologists, the developed POCT system has a potential value and contribution to kidney stone of urolithiasis recurrence prevention.
show abstract

Design of a system on-chip-based device with embedded temperature sensing, fall detection and acoustic readout circuit for geriatric care monitoring

Cited by 1 publication

References 6 publications

(Invited)Point-of-Care Based System Development for Urolithiasis Recurrence Prevention

(Invited)Point-of-Care Based System Development for Urolithiasis Recurrence Prevention

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