| Texto completo | |
| Autor(es): Mostrar menos - |
Jiang, Wenfeng
[1, 2, 3]
;
Qu, Zhi-bei
[1, 2, 3]
;
Kumar, Prashant
[1, 2]
;
Vecchio, Drew
[1, 2]
;
Wang, Yuefei
[4, 5]
;
Ma, Yu
[1, 2, 6]
;
Bahng, Joong Hwan
[7]
;
Bernardino, Kalil
[8]
;
Gomes, Weverson R.
[9]
;
Colombari, Felippe M.
[10]
;
Lozada-Blanco, Asdrubal
[9]
;
Veksler, Michael
[1, 2]
;
Marino, Emanuele
[11]
;
Simon, Alex
[1, 2]
;
Murray, Christopher
[11]
;
Muniz, Sergio Ricardo
[12]
;
de Moura, Andr F.
[9]
;
Kotov, Nicholas A.
[1, 2, 13, 4, 14]
Número total de Autores: 18
|
| Afiliação do(s) autor(es): Mostrar menos - | [1] Univ Michigan, Biointerfaces Inst, Ann Arbor, MI 48109 - USA
[2] Univ Michigan, Dept Chem Engn, Ann Arbor, MI 48109 - USA
[3] Shanghai Jiao Tong Univ, Sch Chem & Chem Engn, Frontiers Sci Ctr Transformat Mol, Shanghai 200240 - Peoples R China
[4] Univ Michigan, Dept Mat Sci, Ann Arbor, MI 48109 - USA
[5] Tianjin Univ, Sch Chem Engn & Technol, Tianjin 300072 - Peoples R China
[6] Lanzhou Univ, Sch Stomatol, Lanzhou 730000 - Peoples R China
[7] CALTECH, Pasadena, CA 91125 - USA
[8] Univ Sao Paulo, Inst Chem, Sao Paulo 05508000, SP - Brazil
[9] Univ Fed Sao Carlos, Dept Chem, Sao Carlos 13565905, SP - Brazil
[10] Brazilian Ctr Res Energy & Mat CNPEM, Brazilian Nanotechnol Natl Lab LNNano, Campinas 13083970, SP - Brazil
[11] Univ Penn, Dept Chem, Philadelphia, PA 19104 - USA
[12] Univ Sao Paulo, Sao Carlos Inst Phys, Sao Carlos 13560970, SP - Brazil
[13] Univ Michigan, Dept Macromol Sci & Engn, Ann Arbor, MI 48109 - USA
[14] Michigan Inst Translat Nanotechnol MITRAN, Ypsilanti, MI 48198 - USA
Número total de Afiliações: 14
|
| Tipo de documento: | Artigo Científico |
| Fonte: | Science; v. 368, n. 6491, SI, p. 642+, MAY 8 2020. |
| Citações Web of Science: | 0 |
| Resumo | |
The structural complexity of composite biomaterials and biomineralized particles arises from the hierarchical ordering of inorganic building blocks over multiple scales. Although empirical observations of complex nanoassemblies are abundant, the physicochemical mechanisms leading to their geometrical complexity are still puzzling, especially for nonuniformly sized components. We report the self-assembly of hierarchically organized particles (HOPs) from polydisperse gold thiolate nanoplatelets with cysteine surface ligands. Graph theory methods indicate that these HOPs, which feature twisted spikes and other morphologies, display higher complexity than their biological counterparts. Their intricate organization emerges from competing chirality-dependent assembly restrictions that render assembly pathways primarily dependent on nanoparticle symmetry rather than size. These findings and HOP phase diagrams open a pathway to a large family of colloids with complex architectures and unusual chiroptical and chemical properties. (AU) | |
| Processo FAPESP: | 09/54035-4 - EMU: facility para estudos avançados de materiais nanoestruturados e biossistemas / FAMA |
| Beneficiário: | Igor Polikarpov |
| Linha de fomento: | Auxílio à Pesquisa - Programa Equipamentos Multiusuários |
| Processo FAPESP: | 17/12063-8 - Dinâmica molecular de não-equilíbrio de líquidos iônicos |
| Beneficiário: | Kalil Bernardino |
| Linha de fomento: | Bolsas no Brasil - Pós-Doutorado |
| Processo FAPESP: | 13/07296-2 - CDMF - Centro de Desenvolvimento de Materiais Funcionais |
| Beneficiário: | Elson Longo da Silva |
| Linha de fomento: | Auxílio à Pesquisa - Centros de Pesquisa, Inovação e Difusão - CEPIDs |
| Processo FAPESP: | 12/15147-4 - Estudo computacional da termodinâmica de associação de sistemas auto-organizados |
| Beneficiário: | André Farias de Moura |
| Linha de fomento: | Auxílio à Pesquisa - Regular |