Biological control of nanoparticle nucleation, shape and crystal phase
First Claim
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1. A method for directed semiconductor formation comprising the steps of:
- contacting a polymeric organic material that binds a predetermined face specificity semiconductor material with a first ion to create a semiconductor material precursor; and
adding a second ion to the semiconductor material precursor, wherein the polymeric organic material directs formation of the predetermined face specificity semiconductor material.
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Abstract
The present invention includes compositions and methods for selective binding of amino acid oligomers to semiconductor materials. One form of the present invention is a method for controlling the particle size of the semiconductor materials by interacting an amino acid oligomer that specifically binds the material with solutions that can result in the formation of the material. The same method can be used to control the aspect ratio of the nanocrystal particles of the semiconductor material. Another form of the present invention is a method to create nanowires from the semiconductor material.
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Citations
51 Claims
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1. A method for directed semiconductor formation comprising the steps of:
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contacting a polymeric organic material that binds a predetermined face specificity semiconductor material with a first ion to create a semiconductor material precursor; and
adding a second ion to the semiconductor material precursor, wherein the polymeric organic material directs formation of the predetermined face specificity semiconductor material. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 49, 50)
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19. A method for directed semiconductor formation comprising the steps of:
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contacting a peptide that binds a predetermined face specificity semiconductor material with a first ion to create a semiconductor material precursor; and
adding a second ion to the semiconductor material precursor, wherein the peptide directs formation of the predetermined face specificity semiconductor material. The method of claim 19, wherein the peptide is on the face of a bacteriophage. - View Dependent Claims (21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34)
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35. A method for nucleating semiconductor material comprising the steps of:
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selecting a peptide that binds to a predetermined face specificity material;
preparing a portion of a gold surface that has been altered to have the peptide attached to the surface;
contacting the gold surface-peptide complex with a first ion needed for semiconductor crystal precursor formation; and
adding a second ions needed for semiconductor crystal formation. - View Dependent Claims (36, 37, 38, 39, 40, 41, 51)
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42. A method of constructing nanowires comprising the steps of:
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selecting peptides that bind a predetermined face specificity semiconductor material; and
expressing the peptides as a fusion protein with a protein that is capable of self-assembly. then interact fused with semiconductor precusors to direct formation of semiconductor nanocrystals. - View Dependent Claims (43, 44, 45, 46, 47, 48)
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Specification