نتایج جستجو برای: peroxyoxalate chemiluminescence

تعداد نتایج: 5578  

Journal: :iranian journal of chemistry and chemical engineering (ijcce) 2011
mohammad javad chaichi zahra va'ezi morteza hosseini saman hosseinkhani mojtaba shamsipur

the reaction of hydrogen peroxide and  pheny -9-acridinecarboxylate in the presence of rhodamin b as a fluorophore leads to the emission of either bright blue light  or bright red light, depending on the structure of fluorescer and reaction conditions. the light emitter responsible for the chemi luminescence (cl) reaction is acridone and that the blue light produced with out the fluorescers is ...

Journal: :The Journal of Experimental Medicine 1982
S L Helfand J Werkmeister J C Roder

The binding of tumor cells or fetal fibroblasts to human natural killer (NK) cells led to a rapid chemiluminescence response within seconds of target-effector interaction. The degree of chemiluminescence was dependent on the concentration of NK-enriched lymphocytes or target cells, and plasma membrane vesicles from K562 also induced a chemiluminescence response. Mild glutaraldehyde treatment of...

Journal: :Biomedical chromatography : BMC 1997
J H Miyawa S G Schulman J H Perrin

A broad range of compounds containing the beta-lactam ring were screened for enhancement of luminol chemiluminescence. A selection of these compounds were found to enhance the chemiluminescence of luminol. A high-performance liquid chromatographic method for the analysis of some beta-lactams employing postcolumn chemiluminescence was developed via flow injection analysis studies.

Journal: :Zeitschrift fur Naturforschung. C, Journal of biosciences 1992
Z Czuba W Krol S Scheller J Shani

Fourteen derivatives of cinnamic and acrylic acids were evaluated for their ability to modulate chemiluminescence, evoked by neutrophils that had been exposed to luminol and phorbol-myristate-acetate. Compounds with one or two hydroxyl groups on the phenyl ring demonstrated significant inhibition of the chemiluminescence, but this inhibition was diminished by methoxylation. Saturation of the do...

Journal: :Applied physics letters 2006
Mustafa H Chowdhury Kadir Aslan Stuart N Malyn Joseph R Lakowicz Chris D Geddes

In this letter, we report the observation of metal-enhanced chemiluminescence. Silver Island films, in close proximity to chemiluminescence species, can significantly enhance luminescence intensities; a 20-fold increase in chemiluminescence intensity was observed as compared to an identical control sample containing no silver. This suggests the use of silver nanostructures in the chemiluminesce...

Journal: :Chemical physics letters 2007
Mustafa H Chowdhury Stuart N Malyn Kadir Aslan Joseph R Lakowicz Chris D Geddes

In this letter, we report the first observation of surface plasmon-coupled chemiluminescence (SPCC), where the luminescence from chemically induced electronic excited states couples to surface plasmons in a thin continuous silver film. The SPCC is highly directional and predominantly p-polarized, strongly suggesting that the emission is from surface plasmons instead of the luminophores directly...

Journal: :Gut 1992
G R Davies N J Simmonds T R Stevens A Grandison D R Blake D S Rampton

To investigate the hypothesis that reactive oxygen metabolites are important in the pathophysiology of duodenal ulcer disease, their production by duodenal mucosal biopsy specimens was measured using luminol and lucigenin amplified chemiluminescence. Luminol chemiluminescence, expressed as background corrected median photon emission/mg/min x 10(3) (95% confidence intervals), was increased in du...

Journal: :The Journal of clinical investigation 1978
E L Mills J M Gerrard D Filipovich J D White P G Quie

Human platelets and platelet particulate fractions were found to emit a burst of chemiluminescence during incubation with arachidonic acid. The magnitude of light emission was directly related to the number of platelets in the reaction mixture and varied little for the same individual from day to day. The chemiluminescence response of platelets was localized to the particulate fraction and was ...

2007
Jing Chen Yanjun Fang

A review with 90 references is presented to show the development of acidic chemiluminescence methods for biochemical analysis by use of flow injection technique in the last 10 years. A brief discussion of both the chemiluminescence and flow injection technique is given. The proposed methods for biochemical analysis are described and compared according to the used chemiluminescence system.

Journal: :Journal of lipid research 1995
S L Arnsmeier A S Paller

We describe a method for the detection of gangliosides on thin-layer chromatography plates using enhanced chemiluminescence. In contrast to previously published colorimetric techniques, the use of chemiluminescence of detect antibody binding to gangliosides has increased sensitivity and simplicity. In addition, the use of chemiluminescence lacks the hazards of radioactivity, and produces a perm...

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