Chemiluminescent Imaging
Chemiluminescent Imaging - Related Videos
03:35
Chemiluminescent Western Blot Assay for Protein Processing
0 Views •
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.
08:57
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.
07:10
In vivo Imaging Method to Distinguish Acute and Chronic Inflammation
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Cited by 25 •
2013
We describe a non-invasive imaging method for distinguishing inflammatory stages. Systemic delivery of luminol reveals areas of acute inflammation dependent upon MPO activity in neutrophils. In contrast, injection of lucigenin allows for visualization of chronic inflammation dependent upon Phox activity in macrophages.
08:23
Chemiluminescence-based Assays for Detection of Nitric Oxide and its Derivatives from Autoxidation and Nitrosated Compounds
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Cited by 6 •
2022
Here, we present protocols for detecting nitric oxide and its biologically relevant derivatives using chemiluminescence-based assays with high sensitivity.
FAQs
At the reaction level, luciferase catalyzes the oxidation of luciferin, and the resulting chemical reaction releases photons. Required cofactors support this catalytic process, so signal generation depends on having the reaction components available in the biological system. A sensitive camera then records the emitted light, linking enzyme activity to a measurable readout of biological activity.
Because the signal is generated by the reaction itself, image acquisition does not require external illumination. This avoids the need to illuminate the sample while measuring reporter activity and contributes to high contrast in the recorded image. For bioengineering studies, that contrast can make changes in cellular or engineered-system activity easier to detect over background.
A camera converts emitted photons into image data that can be quantified, allowing researchers to follow signal changes rather than relying only on a single visual observation. Repeated measurements can therefore reveal dynamic behavior over time, such as changing activity in tracked cells, gene-expression reporters, or engineered biological systems. The approach supports monitoring in living models.
A basic workflow starts by associating the biological process of interest with a luciferase reporter, then ensuring luciferin and required cofactors are available for the reaction. A sensitive camera captures the emitted photons, and the resulting signal is quantified. This sequence connects reporter activity with an optical measurement that can be compared across time or experimental conditions.
The method can support biosensor development, therapeutic evaluation, tissue engineering, and analysis of cellular behavior in living models. In each case, the useful output is a noninvasive optical measure of activity rather than a destructive endpoint. This makes it suitable for following engineered systems or biological responses while they change over time.
When luciferase is used as a reporter for gene expression, emitted light provides an indirect readout of the activity associated with that reporter. Imaging therefore helps connect gene-expression behavior to observable activity in cells or engineered constructs. In bioengineering, this relationship can be used to evaluate designed biological systems and monitor how their activity evolves in living models.