Light attenuating formulations
AssigneesAdámas Nanotechnologies, Inc., International Technology Center
InventorsOlga Alexander Shenderova, Varvara Grichko
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Abstract
A preparation provides light or radiation attenuation between about 190 and 800 nm has an amount of diamond nanoparticles in a medium, where the diamond nanoparticles have a size between about 1 nm and 1000 nm are modified to enhance absorption or photoluminescence. This abstract is not to be considered limiting, since other embodiments may deviate from the features described in this abstract.
Claims25
A diagnostic or therapeutic agent for imaging, labeling, tracing, tagging, sensing or biodetection, comprising:
- an effective amount of diamond nanoparticles in a physiologically compatible carrier medium, where a plurality of the diamond nanoparticle comprise a size greater than about 1 nm and less than about one micron;
- the diamond nanoparticles having an attached diagnostic agent or an attached therapeutic agent;
- where at least a portion of the diamond nanoparticles are modified to enhance absorption and photoluminescence when exposed to light due to increased amount of internal defects or color centers within the diamond nanoparticles;
- and
- where enhanced absorption or photoluminescence occurs when exposed to excitation light having a wavelength between approximately 190 and 400 nm.
An imaging, tagging, marking or bar code material, comprising:
- a carrier medium containing a dispersion of diamond particles, where a plurality of the diamond particles comprise a size less than 50 micron;
- where at least a portion of the diamond particles comprise modified diamond particles that are modified to enhance absorption and photoluminescence when exposed to an excitation light source with a wavelength between approximately 190 and 1100 nm;
- and
- whereby, presence of the material is detected by inducing photoluminescence of the diamond particles by excitation with light of a prescribed excitation wavelength between approximately 190 and 1100 nm.
A material, comprising:
- a carrier medium;
- a plurality of diamond particles having size less than 50 microns dispersed in the carrier medium;
- where at least a portion of the diamond particles comprise modified diamond particles that are modified to enhance absorption and photoluminescence when exposed to an excitation light source with a wavelength between approximately 190 and 1100 nm.
Dependencies are inferred from the claim text.