Chemical compositions comprising crystalline colloidal arrays
First Claim
1. A composition comprising:
- a crystalline colloidal array comprising ordered particles; and
a polymeric matrix encapsulating said crystalline colloidal array, wherein said polymeric matrix comprises polymerized poly(ethylene glycol) based monomer units polymerized among the ordered particles of the crystalline colloidal array.
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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.
40 Citations
34 Claims
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1. A composition comprising:
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a crystalline colloidal array comprising ordered particles; and
a polymeric matrix encapsulating said crystalline colloidal array, wherein said polymeric matrix comprises polymerized poly(ethylene glycol) based monomer units polymerized among the ordered particles of the crystalline colloidal array. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A composition comprising:
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a crystalline colloidal array comprising ordered polystyrene-based colloidal particles in an aqueous medium; and
a polymeric matrix encapsulating said crystalline colloidal array, wherein said polymeric matrix comprises polymerized poly(ethylene glycol) based monomer units represented by;
wherein R2 comprises a functional group having at least two active bonding sites, R1, R4 and R5 are each independently selected from the group consisting of alkanes, alkenes, arenes, halides, ethers, acrylates, amine groups, amides, thiols, esters, ketones, nitro compounds, carboxy groups, hydroxy groups, and hydrogen, R3 is selected from the group consisting of alkanes, alkenes, arenes, halides, ethers, acrylates, amine groups, amides, thiols, esters, ketones, nitro compounds, carboxy groups, hydroxy groups, hydrogen, proteins, nucleotides, and antibodies, and a crosslinking agent polymerized with said monomer units, wherein said monomer units are polymerized among the ordered particles of the crystalline colloidal array. - View Dependent Claims (13, 14, 15, 16, 17, 18)
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19. A sensory device comprising:
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a crystalline colloidal array comprising an ordered lattice structure defining a visible bandgap at a first wavelength;
a polymerized matrix encapsulating said crystalline colloidal array, said polymerized matrix comprising poly(ethylene glycol) based monomer units polymerized among the ordered lattice structure of the crystalline colloidal array; and
wherein upon stimulation of said sensory device said visible bandgap is capable of shifting to a second wavelength. - View Dependent Claims (20, 21, 22, 23, 24, 25, 26, 27)
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28. A composition comprising:
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an aqueous solution comprising a high molecular weight poly(ethylene glycol) based macromolecule in a concentration such that the viscosity of the solution is increased due to the presence of the macromolecule concentration; and
a crystalline colloidal array within the aqueous solution. - View Dependent Claims (29, 30, 31, 32, 33, 34)
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Specification