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http://hdl.handle.net/10773/20825
Título: | Evaporation-Driven Crystallization of Diphenylalanine Microtubes for Microelectronic Applications |
Autor: | Nuraeva, Alla Vasilev, Semen Vasileva, Dania Zelenovskiy, Pavel Chezganov, Dmitry Esin, Alexander Kopyl, Svetlana Romanyuk, Konstantin Shur, Vladimir Ya. Kholkin, Andrei L. |
Palavras-chave: | ASSEMBLED PEPTIDE NANOTUBES WATER NANOSTRUCTURES GROWTH NANOMATERIALS LUMINESCENCE DIPEPTIDES NANOWIRES CRYSTALS CHAINS |
Data: | 2016 |
Editora: | AMER CHEMICAL SOC |
Resumo: | Self-assembly of supramolecular biomaterials such as proteins or peptides has revealed great potential for their use in various applications ranging from scaffolds for cell culture to light-emitting diodes and piezoelectric transducers. Many of these applications require controlled growth,of individual objects in the configuration allowing simple transfer to the desired device. In this work, we grew millimeter-long diphenylalanine (FF) self-assembled microtubes with high aspect ratio via evaporation-driven crystallization of nonsaturated FF solutions, making use of the Marangoni flow in the drying droplets. The growth mechanism was investigated by measuring the microtube length as a function of time. Jerky (steplike) growth behavior was observed and explained by a self-activated process in which additional activation energy is provided through condensation. The calculated growth rate due to the diffusion-controlled process is in agreement with the experimentally measured values. The grown microtubes were successfully transferred to metallized patterned substrates, and their specific conductivity and piezoelectric properties were evaluated as a function of the applied voltage and frequency. A number of piezoelectric resonances were observed and attributed to different vibrational modes excited by the piezoelectric effect inherent to the FF structure. |
Peer review: | yes |
URI: | http://hdl.handle.net/10773/20825 |
DOI: | 10.1021/acs.cgd.5b01604 |
ISSN: | 1528-7483 |
Versão do Editor: | 10.1021/acs.cgd.5b01604 |
Aparece nas coleções: | CICECO - Artigos |
Ficheiros deste registo:
Ficheiro | Descrição | Tamanho | Formato | |
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Evaporation-Driven Crystallization of Diphenylalanine Microtubes for Microelectronic Applications_10.1021acs.cgd.5b01604.pdf | 5.12 MB | Adobe PDF |
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