Compositions – Light transmission modifying compositions – Displaying color change
Reexamination Certificate
2005-09-20
2005-09-20
Gulakowski, Randy (Department: 1712)
Compositions
Light transmission modifying compositions
Displaying color change
C516S099000, C424S010300, C436S116000, C116S206000
Reexamination Certificate
active
06946086
ABSTRACT:
Crystalline colloidal arrays (CCA) which have been encapsulated in a polymer matrix to produce more robust polymerized crystalline colloidal arrays (PCCA) are provided. The PCCA's of the present invention can be in the form of a hydrogel which can be compatible for use with a biological system. The polymer matrix of the PCCA is formed of polymerized poly(ethylene glycol) based monomer units which can provide a desired functionality to the PCCA. The PCCA can be formed to exhibit a photonic bandgap at a certain wavelength. The photonic bandgap can be capable of shifting upon some form of environmental stimulation rendering the PCCA suitable for many optical applications, including active photonic switching and sensory applications.
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Ballato John
Baughman Travis
Foulger Stephen H.
Jiang Ping
Lattam Amanda C.
Clemson University
Dority & Manning P.A.
Gulakowski Randy
Kugel Tim
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