GRAM-SCALE FRACTIONATION OF NANODIAMONDS BY DENSITY GRADIENT ULTRACENTRIFUGATION
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United States of America Patent
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Aug 4, 2016
app pub date -
Sep 12, 2014
filing date -
Sep 12, 2013
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Disclosed herein are compositions comprising purified nanoparticles and methods of generating and using the same, preferably a composition comprising purified nanodiamonds, wherein the diamond nanocrystals have a size distribution equal to or between 1 and 10 nm and a method of purifying the composition comprising nanoparticles, preferably nanodiamonds, comprising: centrifuging at least two tubes comprising a first sample comprising nanoparticles, preferably nanodiamonds, to create a density gradient, wherein the at least two tubes are tilted at least 45°; and collecting a second composition containing purified nanoparticles, preferably nanodiamonds.
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