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Nitric oxide fluorescence

Figure 1. Dye laser system for nitric oxide fluorescence measurements in CH,—... Figure 1. Dye laser system for nitric oxide fluorescence measurements in CH,—...
G. Kychakoff, K. Knapp, R.D. Howe, R.K. Hanson Flow visualization in combustion gases using nitric oxide fluorescence. AIAA J. 22, 153 (1984)... [Pg.385]

G. Kychakoff, K. Knapp, R.D. Howe, R.K. Hanson Flow visualization in combustion gases using nitric oxide fluorescence. AIAA J, 22, 153 (1984) G. Kychakoff, R.D. Howe, R.K. Hanson, M.C. Drake, R.W. Pitz, M. Lapp, C.M. Penney Visualization of turbulent flame fronts with planai" laser-induced fluorescence. Science 224, 382 (1984)... [Pg.552]

Chemiluminescence. Chemiluminescence (262—265) is the emission of light duting an exothermic chemical reaction, generaUy as fluorescence. It often occurs ia oxidation processes, and enzyme-mediated bioluminescence has important analytical appHcations (241,262). Chemiluminescence analysis is highly specific and can reach ppb detection limits with relatively simple iastmmentation. Nitric oxide has been so analyzed from reaction with ozone (266—268), and ozone can be detected by the emission at 585 nm from reaction with ethylene. [Pg.320]

Chang CJ, Javorski J, Nolan EM, Shaeng M, Lippard SJ (2004) A tautomeric zinc sensor for ratiometric fluorescence imaging application to nitric oxide-release of intracellular zinc. Proc Natl Acad Sci USA 101 1129-1134... [Pg.24]

Smith RC, Tennyson AG, Lim MH, Lippard SJ (2005) Conjugated polymer-based fluorescence tum-on sensor for nitric oxide. Org Lett 7 3573-3575... [Pg.387]

The fluorescence properties of derivatives of oxazolo[4,5- ]pyridine has been reported by Mac et al. <2007JPP(A)188>. Martin et al. have reported the preparation of oxazolo[4,5- ]pyridine derivatives as inducible nitric oxide synthase inhibitors <2007W0045622>. [Pg.488]

Destruction of nitric oxide by superoxide in the buffers is more likely to account for the short half-life of nitric oxide in vitro. Superoxide dismutase (15-100 U/ml) substantially increased the apparent half-life of EDRF, strongly suggesting that superoxide contributes to the short biological half-life of nitric oxide. In the perfusion cascade bioassay system, the buffers are bubbled with 95% oxygen, contain 11 mM glucose as well as trace iron plus copper contamination and are incubated under the weak ultraviolet (UV) radiation of fluorescent lights. These are prime conditions for the autoxidation of glucose to form small amounts of superoxide in sufficient amounts to account for the short half-life of nitric oxide in nanomolar concentrations. The rate of reaction between superoxide and nitric oxide is 6.7 X 10 M sec L The shortest half-life of nitric oxide measured is approximately 6 sec. To achieve a half-life of 6 sec, the steady state concentration of superoxide would only need to be 17 pM, calculated as ln(2)/ (6 sec X 6.7 X 10 M" sec )-... [Pg.13]

CIO and BrO abundances are detected simultaneously and continuously as the airstream passes through the instrument. They are not detected directly but are chemically converted to Cl and Br atoms by reaction with reagent nitric oxide gas that is added to the airstream inside the instrument. The Cl and Br atoms are then detected directly with resonance fluorescence in the 2D5/2 -> 2P3/2 transitions in the vacuum ultraviolet region of the spectrum. In resonance fluorescence, the emissions from the light sources are resonantly scattered off of the Cl and Br atoms in the airstream and are detected by a photomultiplier tube set at right angles to both the light source and the flow tube. The chemical conversion reactions... [Pg.180]

Quenching of Fluorescence in Anthaquinone Derivatives by Nitric Oxide ... [Pg.265]

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