The paper describes a disposable electrochemical biosensor for glucose monitoring. The sensor is based on carbon
paste immobilized with glucose oxidase and upon screen printed electrodes. The sensor has been tested effectively for
the blood glucose levels corresponding to normal (70 to 99 mg/dL or 3.9 to5.5 mmol/L), pre-diabetic (100 to 125
mg/dL or 5.6 to 6.9 mmol/L) and diabetic (>126 mg/dL or 7.0 mmol/L). The calibration curve and the sensitivity of
the sensor were measured.
Wearable health monitoring systems have recently attracted widespread interest for their application in long term patient
monitoring. Wireless wearable technology enables continuous observation of patients while they perform their normal
everyday activities. This involves the development of flexible and conformable sensors that could be easily integrated to
the smart fabrics. Carbon nanotubes are found to be one of the ideal candidate materials for the design of
multifunctional e-textiles because of their capability to change conductance based on any mechanical deformation as
well as surface functionalization. This paper presents the development and characterization of a carbon nanotube (CNT)-polymer nanocomposite flexible strain sensor for wearable health monitoring applications. These strain sensors can be
used to measure the respiration rhythm which is a vital signal required in health monitoring. A number of strain sensor
prototypes with different CNT compositions have been fabricated and their characteristics for both static as well as
dynamic strain have been measured.
It is known that multi walled carbon nanotubes (MWCNTs) is an excellent materials for biosensing applications and
with the introduction of Pt nanoparticles (Pt-MWCNTs) of about 3nm in diameter in MWCNTs greatly increases the
current sensitivity and also the signal to noise ratio. We fabricated the CNT- based glucose sensor by immobilization the
bio enzyme, glucose oxidase (GoX), on the Pt-MWCNT and electrode were prepared. The sensor has been tested
effectively for both the abnormal blood glucose levels- greater than 6.9 mM and less than 3.5 mM which are the
prediabetic and diabetic glucose levels, respectively. The current signal obtained from the Pt-MWCNT was much higher
compared to the MWCNT based sensors.
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