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  Controlled-alignment patterns of dipeptide micro- and nanofibers

Liu, X., Danglad-Flores, J. A., Eickelmann, S., Sun, B., Hao, J., Riegler, H., et al. (2022). Controlled-alignment patterns of dipeptide micro- and nanofibers. ACS Nano, 16(7), 10372-10382. doi:10.1021/acsnano.2c00443.

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 Creators:
Liu, Xingcen, Author
Danglad-Flores, José Angél1, Author           
Eickelmann, Stephan1, Author           
Sun, Bingbing, Author
Hao, Jingcheng, Author
Riegler, Hans1, Author           
Li, Junbai, Author
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1Hans Riegler, Theorie & Bio-Systeme, Max Planck Institute of Colloids and Interfaces, Max Planck Society, ou_1863502              

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Free keywords: dipeptide; assembly; controlled alignment; microfiber/nanofiber; dip coating
 Abstract: Ordered assemblies of the peptide diphenylalanine (FF) are produced and deposited on planar substrates. The FF aggregate growth is achieved through precipitation from aqueous ammonia solutions induced by solvent evaporation. The applied dip-coating technique confines the FF assembly growth to a narrow zone near the three-phase contact. The growth was observed online by optical microscopy and was investigated systematically as a function of the process parameters. Depending on the external gas flow (to influence solvent evaporation), the withdrawal speed, the initial FF, and the initial ammonia concentrations, FF forms long, straight, and rigid microfibers and/or shorter, curved nanofibers. Under certain process conditions, the FF fibers can also aggregate into stripes. These can be deposited as large arrays of uniform stripes with regular widths and spacings. Scenarios leading to the various types of fibers and the stripe formation are presented and discussed in view of the experimental findings.

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Language(s): eng - English
 Dates: 2022-07-052022
 Publication Status: Published in print
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 Rev. Type: -
 Identifiers: DOI: 10.1021/acsnano.2c00443
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Title: ACS Nano
  Other : ACS Nano
Source Genre: Journal
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Publ. Info: Washington, DC : American Chemical Society
Pages: - Volume / Issue: 16 (7) Sequence Number: - Start / End Page: 10372 - 10382 Identifier: ISSN: 1936-0851