PET Imaging of Carbon Nanotubes in Mice
Author Information
Author(s): Michael R. McDevitt, Debjit Chattopadhyay, Jaspreet S. Jaggi, Ronald D. Finn, Pat B. Zanzonico, Carlos Villa, Diego Rey, Juana Mendenhall, Carl A. Batt, Jon T. Njardarson, David A. Scheinberg
Primary Institution: Memorial Sloan-Kettering Cancer Center
Hypothesis
How do functionalized carbon nanotubes distribute in vivo and how do they clear from the body?
Conclusion
The study found that soluble, sidewall-functionalized carbon nanotubes primarily accumulate in the kidneys, liver, and spleen, with rapid blood clearance, which could be beneficial for diagnostic applications.
Supporting Evidence
- The constructs were characterized spectroscopically, microscopically, and chromatographically.
- The whole-body distribution and clearance of yttrium-86 was characterized at 3 and 24 hours post-injection using PET.
- Differential uptake in target tissues was observed following intravenous or intraperitoneal injection.
Takeaway
Scientists used special carbon tubes to see where they go in mice. They found that these tubes mostly go to the kidneys and liver and leave the blood quickly.
Methodology
The study involved synthesizing carbon nanotubes, labeling them with yttrium-86, and using PET imaging to track their distribution in mice.
Potential Biases
Potential bias in the interpretation of imaging data and the small sample size may affect generalizability.
Limitations
The study was limited to a small sample size and only evaluated biodistribution in mice.
Participant Demographics
Ten male athymic nude mice, 10–12 weeks old.
Statistical Information
P-Value
0.023
Statistical Significance
p<0.05
Digital Object Identifier (DOI)
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