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231223s2005 xx ||||| 00| ||eng c |
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|a pubmed24n0526.xml
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|a (DE-627)NLM157848817
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|a (NLM)16171320
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|a DE-627
|b ger
|c DE-627
|e rakwb
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|a eng
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| 100 |
1 |
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|a Sun, Z Q
|e verfasserin
|4 aut
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| 245 |
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|a Nonspherical colloidal crystals fabricated by the thermal pressing of colloidal crystal chips
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|c 2005
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|a Text
|b txt
|2 rdacontent
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|a ohne Hilfsmittel zu benutzen
|b n
|2 rdamedia
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|a Band
|b nc
|2 rdacarrier
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|a Date Completed 17.04.2007
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|a Date Revised 20.09.2005
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|a published: Print
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|a Citation Status PubMed-not-MEDLINE
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|a Nonspherical colloids and their ordered arrays may be more attractive in applications such as photonic crystals than their spherical counterparts because of their lower symmetries, although such structures are difficult to achieve. In this letter, we describe the fabrication and characterization of colloidal crystals constructed from nonspherical polyhedrons. We fabricated such nonspherical colloidal crystals by pressing spherical polymer colloidal crystal chips at a temperature slightly lower than the glass-transition temperature (T(g)) of these polymer colloids. During this process, the polymer microspheres were distinctively transformed into polyhedrons according to their crystal structures, whereas the long-range order of the 3D lattice was essentially preserved. Because a working temperature lower than T(g) effectively prevented the colloidal crystals from fusing into films, the spherical colloidal crystals were transformed greatly under pressure, which lead to obvious change in the optical properties of colloidal crystals. Besides their special symmetry and optical properties, these nonspherical colloidal crystals can be used as templates for 2D or 3D structures of special symmetry, such as 2D nano-networks. We anticipate that this fabrication technique for nonspherical colloidal crystals can also be extended to nonspherical porous materials
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|a Journal Article
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|a Chen, X
|e verfasserin
|4 aut
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1 |
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|a Zhang, J H
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Chen, Z M
|e verfasserin
|4 aut
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|a Zhang, K
|e verfasserin
|4 aut
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|a Yan, X
|e verfasserin
|4 aut
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| 700 |
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|a Wang, Y F
|e verfasserin
|4 aut
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| 700 |
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|a Yu, W Z
|e verfasserin
|4 aut
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| 700 |
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|a Yang, B
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t Langmuir : the ACS journal of surfaces and colloids
|d 1992
|g 21(2005), 20 vom: 27. Sept., Seite 8987-91
|w (DE-627)NLM098181009
|x 1520-5827
|7 nnns
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| 773 |
1 |
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|g volume:21
|g year:2005
|g number:20
|g day:27
|g month:09
|g pages:8987-91
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