The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 01, 2012
Filed:
Nov. 13, 2007
Applicants:
Huan-cheng Chang, Taipei, TW;
Wunshain Fann, Taipei, TW;
Chau-chung Han, Taipei, TW;
Inventors:
Assignee:
Academia Sinica, Taipei, TW;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C12N 13/00 (2006.01); C09K 11/08 (2006.01); B01J 19/08 (2006.01);
U.S. Cl.
CPC ...
Abstract
A method for preparing luminescent diamond particles (e.g., fluorescent nanodiamonds). The method includes irradiating diamond particles with an ion beam and heating the irradiated diamond particles in a non-oxidizing atmosphere at a temperature between 600 and 1000° C. The diamond particles have a diameter of 1 nm to 1 mm and the ion beam has a kinetic energy of 1 KeV to 900 MeV. Also disclosed are luminescent diamond particles prepared by this method and methods of using them.