Experts of Stanford University have claimed that gold nano particles
might help doctors detect colon cancer sooner. This could lead to easier and
more successful treatment. Larger polyps can be easily detected by
colonoscopy, but small ones may be overlooked.
For testing purpose the patients will have to drink a fluid containing billions
of the microscopic nano particles. Scientists added a surface layer of peptides or
larger proteins to the nano particles which are designed to attach to the cancer
cells. As this fluid makes its way down the bowel, the particles stick to the
tumor cells they encounter. While performing colonoscopy the doctor will see
the bright reflection of these ingested nano particles which have got attached
to the cancer cells. Now scientists are looking forward to use nano particles
to look at other cancers.
These nano particles have been safely used in mouse studies
and now scientists are hoping to conduct human trials. According to the scientists
regulatory FDA approval for the procedure would come by the next year end. The study
has been published in the journal Science Translational Medicine.