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Direct electrochemistry and electrocatalysis of hemoglobin based on poly(diallyldimethylammonium chloride) functionalized graphene sheets/room temperature ionic liquid composite film
- Source :
-
Electrochemistry Communications . Mar2010, Vol. 12 Issue 3, p402-405. 4p. - Publication Year :
- 2010
-
Abstract
- Abstract: The functionalized graphene nanosheets (PDDA-G) with poly(diallyldimethylammonium chloride) (PDDA) were synthesized and used to combine with room temperature ionic liquid (RTIL). The resulting RTIL/PDDA-G composite displayed an enhanced capability for the immobilization of hemoglobin to realize its direct electrochemistry. Moreover, the RTIL/PDDA-G based biosensor exhibited excellent electrocatalytic activity for the detection of nitrate with a wide linear range from 0.2 to 32.6μM and a low detection limit of 0.04μM at 3σ. This work opens a new way to functionalized graphene nanosheets with good biocompatibility and solubility in biosensors. [Copyright &y& Elsevier]
Details
- Language :
- English
- ISSN :
- 13882481
- Volume :
- 12
- Issue :
- 3
- Database :
- Academic Search Index
- Journal :
- Electrochemistry Communications
- Publication Type :
- Academic Journal
- Accession number :
- 48220372
- Full Text :
- https://doi.org/10.1016/j.elecom.2010.01.004