Zirconium 89 Labeling
Zirconium 89 Labeling - Related Videos
09:29
The Bioconjugation and Radiosynthesis of 89Zr-DFO-labeled Antibodies
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Cited by 81 •
2015
Due to its multi-day radioactive half-life and favorable decay properties, the positron-emitting radiometal 89Zr is extremely well-suited for use in antibody-based radiopharmaceuticals for PET imaging. In this protocol, the bioconjugation, radiosynthesis, and preclinical application of 89Zr-labeled antibodies will be described.
08:54
Synthesis and Exfoliation of Discotic Zirconium Phosphates to Obtain Colloidal Liquid Crystals
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Cited by 3 •
2016
A two dimensional model material of discotic zirconium phosphate was developed. The inorganic crystal with lamellar structure was synthesized by hydrothermal, reflux, and microwave-assisted methods. On exfoliation with organic molecules, layered crystals can be converted to monolayers, and nematic liquid crystal phase was formed at sufficient concentration of monolayers.
09:19
Simultaneous Label-Free Autofluorescence Multi-Harmonic Microscopy
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Cited by 3 •
2025
This protocol presents a step-by-step guide for the Simultaneous Label-free Autofluorescence Multi-harmonic (SLAM) microscopic technique, including details on how to generate the laser light source, prepare a tissue sample, conduct imaging, and analyze the data. SLAM advances nonlinear microscopy by measuring four complementary label-free contrasts to investigate the tissue microenvironment.
08:28
Metabolic Labeling
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2023
Metabolic labeling is used to probe the biochemical transformations and modifications that occur in a cell. This is accomplished by using chemical analogs that mimic the structure of natural biomolecules. Cells utilize analogs in their endogenous biochemical processes, producing compounds that are labeled. The label allows for the incorporation of detection and affinity tags, which can then be used to elucidate metabolic pathways using other biochemical analytical techniques, such as SDS-PAGE...
09:06
Labeling hESCs and hMSCs with Iron Oxide Nanoparticles for Non-Invasive in vivo Tracking with MR Imaging
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Cited by 18 •
2008
For the evaluation of new stem cell therapies it is important to non-invasively track the injected cells in vivo. This video will show you how to label human mesenchymal and embryonic stem cells with iron oxide based contrast agents in vivo for subsequent MR imaging in vivo.
FAQs
Chelators such as desferrioxamine provide the coordination environment that associates zirconium-89 with a molecular targeting agent. The chelator can be linked to an antibody or another molecule, creating a labeled construct without changing the imaging principle. This chemical arrangement connects radionuclide coordination with the biological targeting properties needed for tracking molecular distribution.
The approximately 78-hour physical half-life allows the radioactive signal to remain available while antibodies and related targeting molecules undergo extended circulation. That timing makes the radionuclide particularly relevant when researchers need to examine molecular behavior beyond an immediately observable interval. It supports imaging strategies designed around the slower distribution and clearance patterns of these compounds.
Positrons emitted by the labeled compounds are detected with positron emission tomography, producing information about where the compounds travel in a living system. Researchers can use these measurements to assess biodistribution, target engagement, and clearance. Together, these outcomes show how a molecular imaging agent behaves over time and whether it reaches its intended biological target.
A conceptual workflow combines radionuclide coordination with molecular attachment. Zirconium-89 is associated with a chelator such as desferrioxamine, and that chelator is linked to an antibody or another targeting molecule. The resulting construct can then be followed through positron emission tomography, connecting its chemical preparation to measurements of distribution, target engagement, and clearance.
This approach is useful when investigators need to follow antibodies or other targeting molecules that require extended circulation times. Its applications include immuno-PET, antibody development, and evaluation of radiopharmaceuticals. In each setting, positron emission tomography supplies a way to study the behavior of the labeled molecule in living systems rather than relying only on isolated chemical measurements.
Coordination chemistry supplies the molecular association between zirconium-89 and a chelator, while molecular imaging converts the radionuclide’s positron emission into measurable biological information. Linking the chelator to an antibody or other targeting molecule adds molecular specificity to that signal. This combination enables researchers to relate chemical design to biodistribution, target engagement, and clearance in living systems.