Patterned Microstructure Fabrication: Polyelectrolyte Complexes vs Polyelectrolyte Multilayers; Scientific Reports; Vol. 6

Patterned Microstructure Fabrication: Polyelectrolyte Complexes vs Polyelectrolyte Multilayers; Scientific Reports; Vol. 6

Detalhes bibliográficos
Parent link:Scientific Reports
Vol. 6.— 2016.— [37000, 11 p.]
Autor Corporativo: Национальный исследовательский Томский политехнический университет (ТПУ) Управление проректора по научной работе и инновациям (НРиИ) Центр RASA в Томске Лаборатория изучения механизмов нейропротекции (Лаб. ИМН)
Outros Autores: Gai M. Meiyu, Frueh J. С. Johannes Christoph, Kudryavtseva V. L. Valeriya Lvovna, Mao R. Rui, Kiryukhin M. V. Maxim, Sukhorukov G. V. Gleb Borisovich
Resumo:Title screen
Polyelectrolyte complexes (PEC) are formed by mixing the solutions of oppositely charged polyelectrolytes, which were hitherto deemed “impossible” to process, since they are infusible and brittle when dry. Here, we describe the process of fabricating free-standing micro-patterned PEC films containing array of hollow or filled microchambers by one-step casting with small applied pressure and a PDMS mould. These structures are compared with polyelectrolyte multilayers (PEM) thin films having array of hollow microchambers produced from a layer-by-layer self-assembly of the same polyelectrolytes on the same PDMS moulds. PEM microchambers “cap” and “wall” thickness depend on the number of PEM bilayers, while the “cap” and “wall” of the PEC microchambers can be tuned by varying the applied pressure and the type of patterned mould. The proposed PEC production process omits layering approaches currently employed for PEMs, reducing the production time from ~2 days down to 2?hours. The error-free structured PEC area was found to be significantly larger compared to the currently-employed microcontact printing for PEMs. The sensitivity of PEC chambers towards aqueous environments was found to be higher compared to those composed of PEM.
Idioma:inglês
Publicado em: 2016
Assuntos:
электронный ресурс
труды учёных ТПУ
Acesso em linha:http://dx.doi.org/10.1038/srep37000
Formato: Recurso Eletrônico Capítulo de Livro
KOHA link:https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=654726

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