Quantum particles and Medical science

[pranab]

How much is it possible that semiconductors nano crystallites are applicable in the medical sciences,particularly through a bioimmaging technologies,cellular immaging technologies and in erliest screening of cancer. Do any one know about it?
Dr.pranab Kr. Bhattacharya
Mr.Rupak Bhattacharya
Mr, RitwikBhattacharya
Mr.Bholanath Bhattacharya
www.unipathos.com

[pranab]

I think that such nano crystaloids can be a good delivery system for Gene therapy
Quantum particles with Fluorescent dye mixed can be a good tracer for detection of cancer & metastasis( Distant spread of cancer cell) without a biopsy or invasive technology
Nano quantum particles can act as Robot in our circulatory system to locate & clear up atherosclerosis
Do you agree with me?
Dr. Pranab Kr Bhattacharya
www.unipathos.com

[Swift]

I know that quantum dots (nano-scale semiconductors) have been investigated for medical imaging (one reference). A little googling will find a ton more.

I don't know about the gene therapy, and I think we are a very long way from nano-robots / nanites.

[pranab]

Look at the Editorial of the Lancet
"Nanoparticles—which are the width of 2–10 atoms, that is, less than 100 nanometres—could potentially invade body systems with possible health consequences. For example, nanomaterials, such as metal oxides and carbon nanotubes, could theoretically behave like quartz dust or asbestos particles and result in similar damaging effects on the respiratory system. Studies to date show that the human body's normal defence mechanisms treat nanoparticles like micro-organisms but nanoparticles could link together to form fibres that are too large to be engulfed by macrophages. Nanoparticles with a high proportion of transition metals might have reactive surfaces that could alter the particles' toxicity and consequently harm human cells.
The rapid recent rise in nanomedicine has led to exciting developments in gene therapies, targeted drug-delivery systems, array techniques, molecular imaging, and implant devices. Most of these rely on techniques that manipulate nanoparticles so that they can bypass the human body's defence mechanisms, which might imply that less desirable nanoparticles could also penetrate into cells or cross natural barriers. ...The Lancet July 7 Vol 369:2007
Professor Pranab Kumar Bhattacharya