Electrocatalytic reduction of nitric oxide at electrodes modified with electropolymerized films of [Cr(v-tpy){sub 2}]{sup 3+} and their application to cellular NO determinations

Journal Article · Sun Sep 15 00:00:00 EDT 1996 · Analytical Chemistry (Washington)

DOI:https://doi.org/10.1021/ac951063g· OSTI ID:420880

Maskus, M; Wu, Q; Shapleigh, J P; Abruna, H D ^[1]; Pariente, F ^[2]; Toffanin, A ^[3]

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1. Cornell Univ., Ithaca, NY (United States)
2. Universidad Autonoma de Madrid (Spain)
3. Ciudad Universitaria, Madrid (Spain)

Nitric oxide can be electrocatalytically reduced at electrodes modified with electropolymerized films of [Cr(v-tpy){sub 2}]{sup 3+}. Upon further modification with a thin film of Nafion (to prevent interferences from anions, especially nitrite), these electrodes can be employed as NO sensors in solution with submicromolar detection limits and fast response. We have carried out preliminary studies of cellular NO release from Rhodobacter sphaeroides bacterial cells with excellent results. 21 refs., 7 figs., 1 tab.

• DOE Contract Number: FG02-95ER20206
• OSTI ID: 420880
• Journal Information: Analytical Chemistry (Washington), Vol. 68, Issue 18; Other Information: PBD: 15 Sep 1996
• Country of Publication: United States
• Language: English

Related Subjects

40 CHEMISTRY
36 MATERIALS SCIENCE
NITRIC OXIDE
REDUCTION
ELECTROCHEMISTRY
CHROMIUM COMPLEXES
THIN FILMS
ELECTRODES
BACTERIA
BIOCHEMISTRY
BIOLOGY
POLYMERS