Nanodiamond UV protectant formulations
AssigneeInternational Technology Center
InventorsOlga A. Shenderova, Varvara P. Grichko
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Abstract
A dispersion preparation provides transmission attenuation of ultraviolet A and ultraviolet B and ultraviolet C light comprises a dispersion of an effective amount of diamond nanoparticles in a physiologically compatible medium, where the diamond nanoparticles have a size greater than about 60 nm and are modified to enhance absorption of UV radiation. This abstract is not to be considered limiting, since other embodiments may deviate from the features described in this abstract.
Claims40
An ultraviolet light attenuating preparation, comprising:
- a dispersion of an effective amount of diamond nanoparticles in a physiologically compatible medium, where a plurality of the diamond nanoparticle comprise a size greater than about 60 nm and less than about one micron;
- where the diamond nanoparticles provide ultraviolet radiation transmission attenuating properties for ultraviolet radiation having a wavelength between approximately 190 and 400 nm;
- and
- where at least a portion of the diamond nanoparticles comprise modified diamond nanoparticles that are modified to exhibit internal defects or color centers within the diamond nanoparticles.
An ultraviolet light attenuating preparation, comprising:
- a dispersion of an effective amount of diamond nanoparticles in a physiologically compatible medium, where a plurality of the diamond nanoparticle comprise a size greater than about 60 nm and less than about one micron;
- where the diamond nanoparticles provide ultraviolet radiation transmission attenuating properties for ultraviolet radiation having a wavelength between approximately 190 and 400 nm;
- where at least a portion of the diamond nanoparticles comprise:
- first modified diamond nanoparticles that are modified by doping to create color centers;
- and
- second modified diamond nanoparticles that are modified to exhibit enhanced photoluminescence and enhanced absorption of ultraviolet radiation compared to unmodified diamond nanoparticles, where the second modified diamond nanoparticles comprise diamond nanoparticles that are modified by:
- electron, ion or gamma-ray irradiation of the diamond nanoparticles;
- and
- annealing of the irradiated diamond nanoparticles.
An ultraviolet light attenuating preparation, comprising:
- a dispersion of an effective amount of diamond nanoparticles in a physiologically compatible medium, where a plurality of the diamond nanoparticle comprise a size greater than about 5 nm and less than about one micron;
- where the diamond nanoparticles provide ultraviolet radiation transmission attenuating properties for ultraviolet radiation having a wavelength between approximately 190 and 400 nm;
- and
- where at least a portion of the diamond nanoparticles comprise modified diamond nanoparticles that are modified to exhibit internal defects or color centers within the diamond nanoparticles.
An ultraviolet light attenuating preparation, comprising:
- a dispersion of an effective amount of diamond nanoparticles in a physiologically compatible medium, where a plurality of the diamond nanoparticle comprise a size greater than about 60 nm and less than about one micron;
- where the diamond nanoparticles provide ultraviolet radiation transmission attenuating properties for UVC radiation;
- and
- where at least a portion of the diamond nanoparticles comprise modified diamond nanoparticles that are modified to exhibit internal defects or color centers within the diamond nanoparticles.
An ultraviolet light attenuating preparation, comprising:
- a dispersion of an effective amount of diamond nanoparticles in a physiologically compatible medium, where a plurality of the diamond nanoparticle comprise a size greater than about 60 nm and less than about one micron;
- where the diamond nanoparticles provide radiation transmission attenuating properties for radiation having a wavelength between approximately 190 and 800 nm;
- and
- where at least a portion of the diamond nanoparticles comprise modified diamond nanoparticles that are modified to exhibit internal defects or color centers within the diamond nanoparticles.
Dependencies are inferred from the claim text.