Dye-assisted Ros Generation
Dye-assisted Ros Generation - Related Videos
03:50
ROS Detection with DCFH-DA Staining: Measuring Total ROS in Colorectal Cancer Cell Lines
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2023
This video describes the protocol for detecting total cellular reactive oxygen species (ROS) using 2',7'-dichlorodihydrofluorescein diacetate (DCFH-DA). This method helps visualize ROS localization in the adherent cells using a fluorescence microscope and further quantify ROS intensity with a fluorescence plate reader.
05:16
High Throughput Screening Assessment of Reactive Oxygen Species (ROS) Generation using Dihydroethidium (DHE) Fluorescence Dye
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Cited by 33 •
2024
This protocol describes a novel method to quantify intracellular reactive oxygen species (ROS) using dihydroethidium (DHE) as a fluorescence dye probe using a high-throughput screening approach. The protocol describes the methods for quantitative assessment of intracellular reactive oxygen species (ROS) in the three different hepatocellular carcinoma cell lines.
03:47
Determination of ROS Production by Neutrophils upon Interaction with Opsonized Biofilm
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2025
In this video, we demonstrate an in vitro chemiluminescence assay to detect the generation of reactive oxygen species by neutrophils upon exposure to an opsonized bacterial biofilm.
12:07
Microwave-assisted Intramolecular Dehydrogenative Diels-Alder Reactions for the Synthesis of Functionalized Naphthalenes/Solvatochromic Dyes
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Cited by 2 •
2013
Microwave-assisted intramolecular dehydrogenative Diels-Alder (DA) reactions provide concise access to functionalized cyclopenta[b]naphthalene building blocks. The utility of this methodology is demonstrated by one-step conversion of the dehydrogenative DA cycloadducts into novel solvatochromic fluorescent dyes via Buchwald-Hartwig palladium-catalyzed cross-coupling reactions.
07:33
Visualization of Vascular Ca2+ Signaling Triggered by Paracrine Derived ROS
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Cited by 10 •
2011
An efficient method to gain insights into visualizing the paracrine-derived ROS induction of endothelial Ca2+ signaling is described. This method takes advantage of measuring paracrine derived ROS triggered Ca2+ mobilization in vascular endothelial cells in a co-culture model.
FAQs
The product depends on how the illuminated dye interacts with oxygen. Energy transfer produces singlet oxygen, whereas electron transfer produces superoxide. The dye’s molecular structure and the conditions governing its excited state therefore influence which reactive species predominates. Distinguishing these routes helps investigators connect a particular ROS profile with signaling, cellular damage, or defense responses.
Wavelength controls whether the dye can absorb photon energy and reach an excited state. Illumination at an appropriate wavelength is therefore necessary for efficient activation of the system. Because light conditions help determine whether the dye can transfer energy or electrons to oxygen, wavelength becomes an important variable when regulating oxidative stress in biological experiments.
Oxygen availability affects how much reactive oxygen can form after the dye is illuminated. The excited dye must interact with nearby oxygen molecules through energy or electron transfer, so limited oxygen can constrain production of singlet oxygen or superoxide. This relationship is important when interpreting differences in cellular signaling, damage, or defense under changing biological conditions.
A basic setup combines a suitable dye, illumination at a wavelength the dye can absorb, and an oxygen-containing biological environment. Researchers then examine the resulting cellular response, such as oxidative stress, damage, signaling, or defense. Controlling these elements helps relate the observed outcome to light activation and dye-mediated ROS formation rather than to the biological system alone.
Researchers use the approach to induce oxidative stress in a controlled, light-dependent manner and then examine how cells respond. Relevant outcomes include changes associated with cellular signaling, damage, and defense. This makes the method useful for investigating redox biology, where the relationship between reactive oxygen production and biological response is a central experimental concern.
The method supports studies of cell damage, redox biology, antimicrobial effects, and photodynamic therapy. In each context, illumination provides a way to initiate ROS formation through the dye, while the resulting oxidative activity supplies a basis for examining biological effects. It can therefore connect molecular photochemistry with cellular defense, injury, or treatment-related responses.