Fluorescent Agent Injection
Fluorescent Agent Injection - Related Videos
02:57
Catheter Based Intravenous Injection of Experimental Agents: A Technique for Delivering Experimental Agents Intravenously Through Jugular Vein in Mouse Model
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2025
In this video, we describe a method for implanting a catheter into the jugular vein of a mouse model through which experimental agents such as drugs and tracer dyes can be delivered intravenously in vivo. Such an arrangement when connected to other systems can also be used for monitoring hemodynamics and blood sampling.
05:55
Delivery of Therapeutic Agents Through Intracerebroventricular (ICV) and Intravenous (IV) Injection in Mice
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Cited by 122 •
2011
This article demonstrates two very different methods of injection: 1) into the brain (intracerebroventricular) and 2) systemic (intravenous) to introduce the therapeutic agents into the central nervous system of neonatal mice.
07:52
Simultaneous Electrophysiological Recording and Micro-injections of Inhibitory Agents in the Rodent Brain
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Cited by 3 •
2015
Here, we craft a glass pipette with dual functions: inhibition of deep brain structures by microinjections of drugs and real-time monitoring of their effects through simultaneous electrophysiological recordings.
06:46
Non-invasive In Vivo Fluorescence Optical Imaging of Inflammatory MMP Activity Using an Activatable Fluorescent Imaging Agent
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Cited by 4 •
2017
This paper explains the application of fluorescent imaging using an activatable optical imaging probe to visualize the in vivo activity of key matrix metalloproteinases in two different experimental models of inflammation.
10:19
Reducing Agents
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2023
Source: Vy M. Dong and Daniel Kim, Department of Chemistry, University of California, Irvine, CA Controlling the reactivity and selectivity during the synthesis of a molecule is very important criteria for chemists. This has led to the development of many reagents that allow chemists to pick and choose reagents suitable for a given task. Quite often, a balance between reactivity and selectivity needs to be achieved. This experiment will use IR spectroscopy to monitor the reaction and to...
FAQs
The excitation wavelength must match the fluorophore's light-responsive properties so the compound absorbs energy and emits light at a longer wavelength. This separation allows specialized cameras to distinguish emitted fluorescence from the illuminating light and record the agent's location. In practice, appropriate illumination and detection are essential for producing interpretable images.
After administration, distribution depends on chemical properties or biological targets. That behavior determines whether the signal highlights vessels, specific tissues, or a physiological process. Consequently, interpreting an image requires linking fluorescence location with how the agent moves or interacts in the body. This helps distinguish an observed pattern from the underlying anatomy or function.
Specialized cameras are required because the emitted light must be captured after excitation. Their role is not simply to photograph anatomy; they detect the fluorophore's longer-wavelength emission and convert it into visual information. The usefulness of the result therefore depends on coordinated illumination and detection, enabling real-time or near-real-time assessment during imaging.
A basic workflow begins with administration of the fluorescent agent, followed by its distribution through the body. The relevant region is then illuminated at an appropriate excitation wavelength, while a specialized camera records the emitted longer-wavelength light. Clinicians or researchers can interpret the resulting signal in relation to tissue, vessels, or physiological activity.
Fluorescent agent injection can support assessment of blood flow and tissue perfusion, where signal distribution provides visual information about these processes. It can also help identify anatomical structures and guide minimally invasive or surgical procedures. These uses make the technique valuable when clinicians need visual guidance during an intervention.
In medical research, fluorescent imaging can investigate disease-related changes and support monitoring. Its real-time or near-real-time capability lets researchers and clinicians observe relevant information during an examination or procedure rather than relying only on a later assessment. This temporal advantage is especially relevant to studies of perfusion, anatomy, and physiological processes.