Journal
ELECTRONICS LETTERS
Volume 44, Issue 3, Pages 185-U7Publisher
INST ENGINEERING TECHNOLOGY-IET
DOI: 10.1049/el:20083551
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Characterisation of a BioFET for detection of albumin in a mixture of human urine is presented. To avoid electrolyte effect of the urine, it was measured in PBS (phosphate buffer saline) at a fixed pH after albumin binding. The drain current was modulated by the albumin bound to the anti-albumin immobilised on the gate surface of the BioFET. The current variation ratio was likely to be proportional to the concentration of the albumin in the range 50 - 250 mg/1. The results show the feasibility of the BioFET as a urinary albumin sensor.
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