News Column

Patent Issued for Carbon Nanotubes with Fluorescent Surfactant

August 20, 2014



By a News Reporter-Staff News Editor at Journal of Engineering -- International Business Machines Corporation (Armonk, NY) has been issued patent number 8796642, according to news reporting originating out of Alexandria, Virginia, by VerticalNews editors.

The patent's inventors are Boday, Dylan J. (Tucson, AZ); Kuczynski, Joseph (Rochester, MN); Wertz, Jason T. (Wappingers Falls, NY); Zhang, Jing (Poughkeepsie, NY).

This patent was filed on November 29, 2012 and was published online on August 5, 2014.

From the background information supplied by the inventors, news correspondents obtained the following quote: "Carbon nanotubes are cylindrical nanostructures containing carbon atoms in a hexagonal arrangement primarily through sp.sup.2 bonds. They can be created by a number of techniques, including chemical vapor deposition, arc discharge, and laser ablation. Carbon nanotubes have generally inert surfaces. Their surfaces may be covalently modified, which may change the electrical and fluorescent properties of the carbon nanotubes."

Supplementing the background information on this patent, VerticalNews reporters also obtained the inventors' summary information for this patent: "In an embodiment of the invention, a fluorescent material includes a medium, carbon nanotubes dispersed in the medium, and a fluorescent surfactant. The fluorescent surfactant is adsorbed to a surface of some of the carbon nanotubes in a concentration sufficient to make the material fluoresce in the presence of radiation.

"In another embodiment of the invention, a method for producing a fluorescent material includes dispersing carbon nanotubes and a fluorescent surfactant in a medium and adsorbing the fluorescent surfactant to a surface of the carbon nanotubes in a concentration sufficient to make the material fluoresce in the presence of radiation

"In another embodiment of the invention, a method for verifying the authenticity of a product having a material includes exposing the material to incident radiation and detecting emissive radiation having a first emission wavelength to verify the authenticity of the product. The material includes a medium, carbon nanotubes dispersed in the medium, and a fluorescent surfactant adsorbed to a quantity of the carbon nanotubes in a concentration sufficient to make the material fluoresce at the emission wavelength in the presence of radiation."

For the URL and additional information on this patent, see: Boday, Dylan J.; Kuczynski, Joseph; Wertz, Jason T.; Zhang, Jing. Carbon Nanotubes with Fluorescent Surfactant. U.S. Patent Number 8796642, filed November 29, 2012, and published online on August 5, 2014. Patent URL: http://patft.uspto.gov/netacgi/nph-Parser?Sect1=PTO1&Sect2=HITOFF&d=PALL&p=1&u=%2Fnetahtml%2FPTO%2Fsrchnum.htm&r=1&f=G&l=50&s1=8796642.PN.&OS=PN/8796642RS=PN/8796642

Keywords for this news article include: Fullerenes, Nanotechnology, Carbon Nanotubes, Emerging Technologies, International Business Machines Corporation.

Our reports deliver fact-based news of research and discoveries from around the world. Copyright 2014, NewsRx LLC


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Source: Journal of Engineering


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