Publication Date:
2015-04-25
Description:
Self-assembly of rigid building blocks with explicit shape and symmetry is substantially influenced by the geometric factors and remains largely unexplored. We report the selective assembly behaviors of a class of precisely defined, nanosized giant tetrahedra constructed by placing different polyhedral oligomeric silsesquioxane (POSS) molecular nanoparticles at the vertices of a rigid tetrahedral framework. Designed symmetry breaking of these giant tetrahedra introduces precise positional interactions and results in diverse selectively assembled, highly ordered supramolecular lattices including a Frank-Kasper A15 phase, which resembles the essential structural features of certain metal alloys but at a larger length scale. These results demonstrate the power of persistent molecular geometry with balanced enthalpy and entropy in creating thermodynamically stable supramolecular lattices with properties distinct from those of other self-assembling soft materials.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Huang, Mingjun -- Hsu, Chih-Hao -- Wang, Jing -- Mei, Shan -- Dong, Xuehui -- Li, Yiwen -- Li, Mingxuan -- Liu, Hao -- Zhang, Wei -- Aida, Takuzo -- Zhang, Wen-Bin -- Yue, Kan -- Cheng, Stephen Z D -- New York, N.Y. -- Science. 2015 Apr 24;348(6233):424-8. doi: 10.1126/science.aaa2421.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Polymer Science, College of Polymer Science and Polymer Engineering, University of Akron, Akron, OH 44325, USA. ; Department of Chemistry and Biotechnology, School of Engineering, University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan. ; Key Laboratory of Polymer Chemistry and Physics of Ministry of Education, Center for Soft Matter Science and Engineering, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, P.R. China. scheng@uakron.edu ky13@zips.uakron.edu wenbin@pku.edu.cn. ; Department of Polymer Science, College of Polymer Science and Polymer Engineering, University of Akron, Akron, OH 44325, USA. scheng@uakron.edu ky13@zips.uakron.edu wenbin@pku.edu.cn.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/25908818" target="_blank"〉PubMed〈/a〉
Print ISSN:
0036-8075
Electronic ISSN:
1095-9203
Topics:
Biology
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Chemistry and Pharmacology
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Computer Science
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Medicine
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Natural Sciences in General
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Physics
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