Anna-Maria Spehar
I am currently working on development of bioapplications on mass sensitive multiarray chip and on its packaging into an easy to use, fully integrated product. My previous projects include working on Multisense EU-project, where I developed multiplex assay for rapid detection of pathogens on carbon and gold electrode arrays, and project developing wearable and implantable sensors for monitoring athlete's performance for a UK sports project. Overall, I have extensive experience in biosensing, surface chemistry, microfluidics and assay development.
less
Uploads
electrochemical sensors outside the laboratories, there is a
significant demand on electrochemical measurement systems to
be miniaturized. The paper presents a low-cost, portable
miniature device for electrochemical measurements. The device
consists of a 35mm x 20mm x 25mm wireless tag, which enables
potentiometric and amperometric measurement, and a base
station for data acquisition. Potentiometric performance is
evaluated using solid contact ion selective electrodes for pH and
sodium. High sensitivity, repeatability and fast response time
have been achieved. Amperometric measurement of hydrogen
peroxide shows that the measured current accuracy and
sensitivity are comparable to that of a commercial potentiostat.
Moreover, the device can be used for lactate concentration
sensing.
electrochemical sensors outside the laboratories, there is a
significant demand on electrochemical measurement systems to
be miniaturized. The paper presents a low-cost, portable
miniature device for electrochemical measurements. The device
consists of a 35mm x 20mm x 25mm wireless tag, which enables
potentiometric and amperometric measurement, and a base
station for data acquisition. Potentiometric performance is
evaluated using solid contact ion selective electrodes for pH and
sodium. High sensitivity, repeatability and fast response time
have been achieved. Amperometric measurement of hydrogen
peroxide shows that the measured current accuracy and
sensitivity are comparable to that of a commercial potentiostat.
Moreover, the device can be used for lactate concentration
sensing.