Chemiluminescence of luminol induced by dissolution of oxide-covered aluminum in alkaline aqueous solution

Kulmala, Sakari; Mãtãchescu, Cristina; Kulmala, A.; Papkovsky, Dmitri B.; Håkansson, Markus; Ketamo, Hanna; Canty, Philip

doi:10.1016/s0003-2670(01)01491-x

Cited by 17 publications

(13 citation statements)

References 40 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…It had been noticed that CL intensity of luminol would become stronger with the presence of O 2 in alkaline solutions [17,18], and the behavior of luminols ECL at gold electrode had been found to depend on the presence of O 2 under conventional cyclic voltammetric conditions in alkaline solutions [13]. It suggested that the mechanism of light emitting was relational with the O 2 whether in CL or ECL.…”

Section: The Enhancing Effect Of O 2 and H 2 O 2 For Ecl In Neutral Mmentioning

confidence: 99%

Study on Sensitization from Reactive Oxygen Species for Electrochemiluminescence of Luminol in Neutral Medium

Chu¹,

Guo²,

Di³

et al. 2009

Electroanalysis

View full text Add to dashboard Cite

In this paper, the sensitization on electrochemiluminescent (ECL) reaction of luminol from reactive oxygen species (ROSs) in neutral medium was studied. The powerful sensitization from ROSs even related with organics and organisms were examined under selected conditions which were suitable for biochemical analysis. The results indicated that whether the enhancers were dissolved in solutions or immobilized on the surface of conventional electrodes, stronger ECL intensity of luminol could be obtained. Enhanced ECL helped to provide groundwork for the detection of biomolecules for which would further enhance or quench the ECL signals. The technique may provide new means in a variety of fields such as clinical diagnostics, immunological analysis and environmental monitoring due to its simplicity and high efficiency.

show abstract

Section: The Enhancing Effect Of O 2 and H 2 O 2 For Ecl In Neutral Mmentioning

confidence: 99%

Study on Sensitization from Reactive Oxygen Species for Electrochemiluminescence of Luminol in Neutral Medium

Chu¹,

Guo²,

Di³

et al. 2009

Electroanalysis

View full text Add to dashboard Cite

show abstract

“…Then the relevant primary reaction mechanism is quite probably analogous to that previously studied by us in case of chemiluminescence of luminol induced by dissolution of aluminum metal in alkaline aqueous solution [42]. In addition, weak CL might be generated solely on the basis of reactions between lucigenin and hydroxide ions having very high concentration.…”

Section: Effect Of Ph On Eclmentioning

confidence: 53%

Cathodic electrochemiluminescence of lucigenin at disposable oxide-coated aluminum electrodes

Jiang

Håkansson

Suomi

et al. 2006

Journal of Electroanalytical Chemistry

View full text Add to dashboard Cite

Electrogenerated chemiluminescence (ECL) of lucigenin is induced at oxide-coated aluminum electrode in aqueous solution by cathodic pulse polarization. This ECL can be enhanced by the presence of coreactants such as peroxodisulfalte. The present method is based on the injection of hot electrons into the aqueous electrolyte solution, which probably results in the generation of hydrated electrons as reducing mediators.The successive one-electron redox reactions result in the excited states of lucigenin or its fragmentation products. The method can detect lucigenin over several orders of magnitude of concentration with detection limit below nanomolar concentration level.In addition, the relatively long lifetime of the ECL of lucigenin makes time-resolved detection possible. This study suggests that the derivatives of lucigenin can be utilized as electrochemiluminescent labels in aqueous solution in bioaffinity assays at thin insulating film-coated cathodes. The cathodic ECL reaction mechanisms are discussed.

show abstract

“…Kulmala et al [26] have shown that chemiluminescence of luminol solutions can occur through reactions with aluminium. In their paper it was argued that the high pH of the solution breaks down the microscopic aluminium oxide layer which prevents any further oxidation of aluminium and thus allows the solution to come in contact with the aluminium metal and react chemically with it.…”

Section: Cavitation Field Visualisationmentioning

confidence: 99%

A radial mode ultrasonic horn for the inactivation of Escherichia coli K12

Hunter

Lucas

Watson

et al. 2008

Ultrasonics Sonochemistry

View full text Add to dashboard Cite

Tuned cylindrical radial mode ultrasonic horns offer advantages over ultrasonic probes in the design of flow-through devices for bacterial inactivation. This study presents a comparison of the effectiveness of a radial horn and probe in the inactivation of E. coli K12. The radial horn is designed using finite element analysis and the predicted modal parameters are validated using experimental modal analysis. A validated finite element model of the probe is also presented. Visual studies of the cavitation fields produced by the radial horn and probe are carried out using luminol and also backlighting to demonstrate the advantages of radial horns in producing a more focused cavitation field with widely dispersed streamers. Microbiological studies show that, for the same power density, better inactivation of E. coli K12 is achieved using the radial horn and, also, the radial horn offers greater achievable power density resulting in further improvements in bacterial inactivation. The radial horn is shown to be more effective than the probe device and offers opportunities to design in-line flow-through devices for processing applications.

show abstract

Chemiluminescence of luminol induced by dissolution of oxide-covered aluminum in alkaline aqueous solution

Cited by 17 publications

References 40 publications

Study on Sensitization from Reactive Oxygen Species for Electrochemiluminescence of Luminol in Neutral Medium

Study on Sensitization from Reactive Oxygen Species for Electrochemiluminescence of Luminol in Neutral Medium

Cathodic electrochemiluminescence of lucigenin at disposable oxide-coated aluminum electrodes

A radial mode ultrasonic horn for the inactivation of Escherichia coli K12

Contact Info

Product

Resources

About