1 research outputs found
Salt-Assisted Ultrasonic Deaggregation of Nanodiamond
We
report a new facile, inexpensive, and contaminant-free technique of
salt-assisted ultrasonic deaggregation (SAUD) of nanodiamond into
single-digit particles stable in aqueous colloidal solution in a wide
pH range. The technique utilizes the energy of ultrasound to break
apart nanodiamond aggregates in sodium chloride aqueous slurry. In
contrast to current deaggregation techniques, which introduce zirconia
contaminants into nanodiamond, the single-digit nanodiamond colloids
produced by SAUD have no toxic or difficult-to-remove impurities and
are therefore well-suited to produce nanodiamonds for numerous applications,
including theranostics, composites, and lubrication, etc. Requiring
only aqueous slurry of sodium chloride and standard horn sonicator,
and yielding highly pure well-dispersed nanodiamond colloids, the
technique is an attractive alternative to current nanodiamond deaggregation
protocols and can be easily implemented in any laboratory or scaled
up for industrial use