분야
docxIntroduction
Experimental
Result
1. Morphology of MWCNT biosensor surface
2. Cyclic voltammetry
Summary
In fabrication of MWCNT based glucose enzyme sensor, MWCNTs were grown on the sensing chip of which detection is for obtaining the electrical signal of the input source counting the difference from the original value which is read on the reference electrode. 10ml glucose oxidase was prepared in a standard of 0.4mg/ml solution. On this CNT-grown area, place some of this glucose oxidase solution before storing it under the low temperature of -4C. before the storage, synthesize EDC and NHS of which are each produced for 0.1M solution. spread EDS and NHS on the CNT surface which was activated by -COOH radicals, and store EDS-spread sample for 1 hour and NHS-spread sample for 2 hours under the low temperature. After all these prodecures, store the chip under the low temperature for 24 hours.
For analysis of the sensing properties, analyze the morphology of the sample with AFM. As analyzing its electrical properties, measure time-variant IV shifting curve for analyzing sensing reactivity of the samples by electrical methods; cyclic voltametric measurements.
Fig 1. CNT-COOH immobilization under the EDC-NHS process
Result
1. Morphology of MWCNT biosensor surface
