Ozone Chemiluminescence
Ozone Chemiluminescence - Related Videos
07:49
Measuring Tropospheric Ozone
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2023
Source: Laboratories of Margaret Workman and Kimberly Frye - Depaul University Ozone is a form of elemental oxygen (O3), a molecule of three oxygen atoms bonded in a structure that is highly reactive as an oxidizing agent. Ozone occurs in both the stratosphere and the troposphere levels of the atmosphere. When in the stratosphere (located approximately 10-50 km from the earth’s surface), ozone molecules form to the ozone layer and help prevent harmful UV rays from reaching Earth’s surface. In...
03:35
Chemiluminescent Western Blot Assay for Protein Processing
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2025
This video describes the chemiluminescence-based western blotting of immunoprecipitated lysates. The technique helps determine protein processing and activation. The chemiluminescent signal detected is proportional to the level of protein processing during its activation.
08:17
Generation of a Chronic Obstructive Pulmonary Disease Model in Mice by Repeated Ozone Exposure
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Cited by 7 •
2017
This study describes the successful generation of a new chronic obstructive pulmonary disease (COPD) animal model by repeatedly exposing mice to high concentrations of ozone.
08:57
A Novel Technique for Generating and Observing Chemiluminescence in a Biological Setting
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2017
This protocol describes a new intraoperative imaging technique that uses a ruthenium complex as a source of chemiluminescent light emission, thereby producing high signal-to-noise ratios during in vivo imaging. Intraoperative imaging is an expanding field that could revolutionize the way that surgical procedures are performed.
04:25
Endotoxin Activity Assay: A Chemiluminescence-Based Bioassay for Investigating Endotoxin Activity in Blood Sample
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2025
This video demonstrates a rapid bioassay for investigating endotoxin activity in a whole blood sample via a chemiluminescence-based method. This assay is a rapid and sensitive biomarker test for early-stage diagnosis of endotoxin-mediated sepsis.
FAQs
Electronically excited nitrogen dioxide serves as the light-producing intermediate in the detection reaction. After nitric oxide reacts with ozone, the resulting nitrogen dioxide occupies a higher-energy state. As it returns to a lower-energy state, it releases photons. Measuring those photons connects the chemical reaction to an optical signal that can be analyzed for nitric oxide.
The emitted light intensity corresponds to the amount of nitric oxide present because nitric oxide participates directly in the ozone reaction that generates excited nitrogen dioxide. More nitric oxide produces a related change in photon emission, allowing the detector signal to represent nitric oxide concentration. This relationship makes the technique useful for sensitive analytical measurements.
Nitric oxide measurements can provide information about airway inflammation, vascular signaling, oxidative stress, and disease-related changes in nitric oxide metabolism. These processes give the measurements biological meaning beyond the detector response. In medical research, interpreting nitric oxide levels in this context can help connect chemical measurements with respiratory, cardiovascular, and broader biomedical questions.
Medical applications include analysis of exhaled breath, blood, and other biological samples. Using more than one sample type allows investigators to examine nitric oxide in different physiological settings, including the airways and circulation. The selected sample therefore depends on whether the study focuses on respiratory processes, vascular signaling, oxidative stress, or systemic metabolism.
In respiratory research, measurements from exhaled breath can be used to investigate nitric oxide associated with the airways. Such data may support studies of airway inflammation and disease-related changes in nitric oxide metabolism. The method is valuable because it links a measurable breath signal with biological processes relevant to respiratory investigation.
Blood and other biological samples can extend nitric oxide analysis beyond the respiratory system. In cardiovascular research, the measurements help investigate vascular signaling, while broader biomedical studies can examine oxidative stress and altered nitric oxide metabolism. These applications make the technique useful for relating nitric oxide chemistry to disease-related physiological changes.