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:
Aug. 02, 2011
Filed:
Sep. 21, 2006
Zhibing HU, Denton, TX (US);
Jun Zhou, Denton, TX (US);
Tong Cai, Denton, TX (US);
Shijun Tang, Denton, TX (US);
Manuel Marquez, Midlothian, VA (US);
Zhibing Hu, Denton, TX (US);
Jun Zhou, Denton, TX (US);
Tong Cai, Denton, TX (US);
Shijun Tang, Denton, TX (US);
Manuel Marquez, Midlothian, VA (US);
University of North Texas, Denton, TX (US);
Abstract
The compositions of hydrogel colloidal crystals are made from mixing an aqueous suspension of poly-N-isopropylacrylamide ('PNIPAM')-co-allylamine microgels with dichloromethane, forming a PNIPAM-co-allylamine/dichloromethane mixture. The PNIPAM-co-allylamine/dichloromethane mixture is incubated for a period of time at a given temperature, forming the colloidal crystal material. The colloidal crystals can be stabilized by diffusing a glutaric dialdehyde solution into the colloidal crystal material. The concentration of polymer matrix microgels can determine the orientation of random or columnar crystals.