Re: Radio opaque biomolecule?


It largely depends on the wavelength whether this is useful. According to wikipedia, the smallest wavelength that still counts as "radio waves" is 1 millimeter, so you can only see stuff bigger than that. That rules out any subcellular structures. And at this size, you can just as well put the thing in MRI (Not really diybio though ;) )
Next to that, the reason that radio waves are harmless is probably because no biological structures are organised enough on that wavelength scale to take up energy from it.

On Mon, Jan 2, 2012 at 7:40 AM, Veera <drveerammc@gmail.com> wrote:
Recently i had some ideas about radioimaging gene expression. There
are many ways to study gene expression like using flourescent protien
tags. but all those requires sacrificing the animal for taking tissue
sections for immuno histochemistry. so i was searching some concepts
for visualizing gene expression within specific tissues inside the
body by some imaging techniques.Incidentally i came across bio
activated contrast agents.You can see that in this link <link>http://
www.nibib.nih.gov/HealthEdu/eAdvances/23Oct06<link>. But instead of
using contrast agent i'm just curious to know is there anything like
any protien or any biomolecule which is naturally radio opaque whose
gene can be sandwiched with the promoter of the gene of interest and
so we can image the the tissue and study the gene expression without
killing the animal.....

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