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Re: wooferwax post# 27909

Friday, 08/01/2014 12:35:22 PM

Friday, August 01, 2014 12:35:22 PM

Post# of 104537
wooferwax, QDots last depending on purpose used for

I have read for luminesce in biological markers for cancer and disease screening, the 'game changer' in using QDots is they remain detectable in the body for up to 20 minutes, depending on use, compared to present technologies which fade sometimes in seconds to no more than a few minutes. That allows movement of tagged cells within a body to be followed a much longer time than current methods provide. And as a delivery method for treatments, more time to see its aggregation where needed.

For the stress sensors in composite material skins, tetrapods tested in the lab, are shown to be stressed to the breaking point of a material they would impregnate (thus indicating failure when in practicable such as in composite aerospace, structural, or transportation), thousands of times. And when the stress is removed, the tetrapods return to their original dimensions, having in effect the accuracy of a 'new' sensor again. One would surmise having such sensors to warn of a failure impending, would be used to bring a process to a halt pre-failure, or indicate a small part of broader area needing repair before the complete apparatus is returned to normal use.

And with solar, among the ways present panels are graded, includes a loss of efficiency over time brought on by age, average temperature operated at, etc. Depending on mfgr, panels will be sold claiming a certain efficiency remaining at 20 years for example. Such knowing of the solar devices lifetime is critical to let consumers evaluate a 'time for solar system ROI'. If some shortcoming meant QDot solar could not be made to last long enough to 'be worth its cost in practical use/benefit' compared to current market offerings, research would have dried up before now.

Maximizing the potential in individual market applications seems to be a period we are in now, with shipment for certain application already. The many NDA collaborations (with QTMM and others), as they arrive at sought results will lead to more market utilization. Not the best answer but maybe shows QDot longevity is wide and varied depending on app.
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