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:
Feb. 07, 2017
Filed:
Jan. 15, 2014
Applicant:
Korea Basic Science Institute, Daejeon, KR;
Inventors:
Assignee:
KOREA BASIC SCIENCE INSTITUTE, Yuseong-gu, Daejeon, KR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C09K 11/65 (2006.01); C01B 31/02 (2006.01);
U.S. Cl.
CPC ...
C09K 11/65 (2013.01); C01B 31/0206 (2013.01);
Abstract
A method for preparing photoluminescent carbon nanodots includes preparing and drying a sample, ashing the sample, extracting the ashed sample with solvent, filtering the extracted sample, concentrating the filtered sample, dissolving the sample in water, and freeze-drying the dissolved sample. The sample is preferably a food waste residue or animal excrement.