Quantum Dots Toxically Safe

25 May 2012

A study was conducted on non-human primates indicate no adverse effect of quantum dots and this study open ways to treat the diseases like cancer through nanomedicine. The research findings are published in the online journal Nature Nanotechnology of dated May 20.

The researchers carried out the experimental work on four rhesus monkeys and injected them with cadmium selenide quantum dots and found that the health of the monkeys is normal for the period of 90 days and no abnormalities in major organs were developed during the period. Researchers also found all vital parameters of these monkeys are within normal range and these animals also didn’t lose weight. The visual observations on these animals were also carried out for one more year and no abnormalities were found.

Quantum dots are tiny luminescent particles that glows under different lights and among quantum dots, cadmium selenide are most common and these are not only have potential applications in the area of nanomedicine but can also find applications in other areas including solar cells, light emitting diodes and computers.

The toxicological studies completed at the multiple locations including the University of Buffalo, the Chinese PLA General Hospital, Nanyang Technology University, Singapore and ChangChun University of Science and Technology China, however researchers still believe that more studies needed to establish the harmfulness of the quantum dots.

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