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Buildup of Exponentially Growing Multilayer Polypeptide Films with Internal Secondary Structure
Abstract
The buildup and secondary structure of poly( l -glutamic acid)/poly(allylamine) (PGA/PAH) multilayer films were investigated by means of optical waveguide lightmode spectroscopy, quartz crystal microbalance, and Fourier transform infrared spectroscopy in attenuated total reflection mode. The thickness and the mass of these films grow exponentially with the number of deposited bilayers. Moreover, PGA undergoes a random/α-helix transition when interacting with PAH during the film buildup process. This structural transition leads to (PGA/PAH) i films with an α-helix content (contribution of the α-helices to the amide I band) that switches regularly between 30% and 40% during the film buildup, when the multilayer is alternatively brought into contact with the PAH and PGA solutions. The secondary structure of the film is thus entirely driven by the last deposited layer. The independence of the α-helix content with the number of deposited bilayers also strongly suggests that the film is structurally homogeneous over its whole thickness.
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Cites
Control of Aragonite or Calcite Polymorphism by Mollusk Shell Macromolecules
Falini, G., Albeck, S., Weiner, S., & Addadi, L. (1996) · Science · doi:10.1126/science.271.5245.67 · Cited by 1,437
Cited by
Biomedical Applications of Layer‐by‐Layer Assembly: From Biomimetics to Tissue Engineering
Tang, Z., Wang, Y., Podsiadlo, P., & Kotov, N. A. (2006) · Advanced Materials · doi:10.1002/adma.200600113 · Cited by 1,302
Composite Layer-by-Layer (LBL) Assembly with Inorganic Nanoparticles and Nanowires
Srivastava, S., & Kotov, N. A. (2008) · Accounts of Chemical Research · doi:10.1021/ar8001377 · Cited by 606
Internal structure of polyelectrolyte multilayer assemblies
v. Klitzing, R. (2006) · Physical Chemistry Chemical Physics · doi:10.1039/b607760a · Cited by 431
Yetisen, A. K., Butt, H., Volpatti, L. R., Pavlichenko, I., Humar, M., Kwok, S. J. J., Koo, H., Kim, K. S., Naydenova, I., Khademhosseini, A., et al. (2016) · Biotechnology Advances · doi:10.1016/j.biotechadv.2015.10.005 · Cited by 192
Metadata
- Authors
- Boulmedais, F., Ball, V., Schwinte, P., Frisch, B., Schaaf, P., & Voegel, J.-C.
- Venue
- Langmuir
- Publisher
- American Chemical Society (ACS)
- Published
- 2002-12-21
- Volume
- 19
- Issue
- 2
- Pages
- 440-445
- ISSN
- 0743-7463 (ISSN-L)
- 1520-5827
- OpenAlex
- W2094994567
- Cited by
- 185
- References
- 1
- FWCI
- 5.11
- Type
- journal article
- Language
- en
- Open access
- closed
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