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Volumn 112, Issue 36, 2008, Pages 13846-13850

Active Pt nanoparticles stabilized with glucose oxidase

Author keywords

[No Author keywords available]

Indexed keywords

FOOD ADDITIVES; GLUCOSE; GLUCOSE SENSORS; NANOPARTICLES; NANOSTRUCTURED MATERIALS; NANOSTRUCTURES; NUCLEAR PROPULSION; PLATINUM;

EID: 52649139485     PISSN: 19327447     EISSN: 19327455     Source Type: Journal    
DOI: 10.1021/jp800779c     Document Type: Article
Times cited : (19)

References (33)
  • 30
    • 52649085556 scopus 로고    scopus 로고
    • This was thought to have resulted from a change in surface modification, i.e, a possible loss in the coupled heterostructure between NP and enzyme during ultracentrifugation. After being ultracentrifuged at 15 000 rpm, the Pt NPs still exhibited the average nanocrystal size of ca. 4.0 nm Figures 1 and 2, but they were no longer readily solvated in aqueous medium and resuspension required sonication; possibly indicating some NP agglomeration. By comparison, prior to this procedure, the Pt NP-GOx as-prepared structures were fully solvated forming a golden-brown solution as shown in Supporting Information Figure SI. This apparent change in solvation properties led us to believe that there may have been a change in surface modification by this procedure which prevented NP assembly on PDDA, explaining the lack of measurable electrocatalytic activity of the film thus assembled
    • This was thought to have resulted from a change in surface modification, i.e., a possible loss in the coupled heterostructure between NP and enzyme during ultracentrifugation. After being ultracentrifuged at 15 000 rpm, the Pt NPs still exhibited the average nanocrystal size of ca. 4.0 nm (Figures 1 and 2), but they were no longer readily solvated in aqueous medium and resuspension required sonication; possibly indicating some NP agglomeration. By comparison, prior to this procedure, the Pt NP-GOx as-prepared structures were fully solvated forming a golden-brown solution as shown in Supporting Information Figure SI. This apparent change in solvation properties led us to believe that there may have been a change in surface modification by this procedure which prevented NP assembly on PDDA, explaining the lack of measurable electrocatalytic activity of the film thus assembled.
  • 32
    • 49049088169 scopus 로고    scopus 로고
    • Karam, P.; Halaoui, L. Anal. Chem. 2008, SO, 5441-5448.
    • Karam, P.; Halaoui, L. Anal. Chem. 2008, SO, 5441-5448.


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.