Silver nanoparticles/multiwalled carbon nanotube/polyaniline film for amperometric glutathione biosensor

Narang, Jagriti; Chauhan, Nidhi; Jain, Preeti; Pundir, C.S.

doi:10.1016/j.ijbiomac.2012.01.023

Cited by 73 publications

(32 citation statements)

References 47 publications

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“…CNTs are promising materials for polymer composites [4][5][6] , energy conversion [7][8][9] , sensing [10][11][12] and biological application [13][14][15][16][17] . However, processing CNT´s and introducing them into real applications is severely limited by their low solubilities in organic solvents.…”

Section: Introductionmentioning

confidence: 99%

Structure of a carbon nanotube–dendrimer composite

et al. 2013

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Using all atomistic molecular dynamics (MD) simulations we report the microscopic picture of the nanotube-dendrimer complex for PAMAM dendrimer of generation 2 to 4 and carbon nanotube of chirality (6,5). We find compact wrapping conformations of dendrimer onto the nanotube surface for all the three generations of PAMAM dendrimer. The degree of wrapping is more for non-protonated dendrimer compared to the protonated dendrimer. For comparison we also study the interaction of another dendrimer, poly(propyl ether imine) (PETIM), with nanotube and show that PAMAM dendrimer interacts strongly as compared to PETIM dendrimer as is evident from the distance of closest approach as well as the number of close contacts between the nanotube and dendrimer. We also calculate the binding energy between the nanotube and the dendrimer using MM/PBSA methods and attribute the strong binding to the charge transfer between them. Dendrimer wrapping on CNT will make it soluble and can act as an efficient dispersing agent for nanotube.

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Section: Introductionmentioning

confidence: 99%

Structure of a carbon nanotube–dendrimer composite

et al. 2013

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“…The decrease in the optimum temperature compared to free enzyme (30 • C) might be due to the improvement in the enzyme rigidity upon immobilization through covalent binding. The biosensor showed optimum response within 4 s, which is better than earlier reports [44][45][46]. Fig.…”

Section: Optimization Of Biosensormentioning

confidence: 51%

“…The current response resulting from the CHIT/Fe@Au modified Pt electrode bound enzyme-catalyzed reaction achieved a maximum value at pH 7.0, which is higher than that for silver nanoparticles/MWCNT/polyaniline film (6.0) [44], clarktype oxygen electrode (6.5) [45] but lower than that of pyrolytic graphite electrode (7.8) [46]. This shift in optimum pH from earlier reported biosensor could be related to the functional groups ( NH 2 ) of the polymer side chain.…”

Section: Optimization Of Biosensormentioning

confidence: 72%

An amperometric glutathione biosensor based on chitosan–iron coated gold nanoparticles modified Pt electrode

Chauhan

Narang

Meena

et al. 2012

International Journal of Biological Macromolecules

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“…Decreasing of response time and increasing of sensitivity because of increasing electron transfer rate in the presence of the CNTs were reported [44][45][46][47]. Moreover, CNT's have excellent catalytic activity which decrease their oxidative potential to avoid fouling problems.…”

Section: Carbon Nanotube Biosensormentioning

confidence: 99%