Please use this identifier to cite or link to this item: http://hdl.handle.net/1822/26882

TitlePolymeric layer-by-layer films composed by natural polymers and based on the adhesive properties of mussels for biomedical applications
Author(s)Neto, Ana I.
Cibrão, Ana
Correia, Clara R.
Luz, Gisela
Ferrer, Glória G.
Botelho, Gabriela
Picart, Catherine
Alves, N. M.
Mano, J. F.
KeywordsAdhesion
Dopamine
Marine mussels
Multilayer films
Surface modification
Issue dateSep-2013
PublisherJohn Wiley and Sons
CitationNeto A. I., Cibrão A. C., Correia C. R., Carvalho R. R., Luz G. M., Ferrer G. G., Botelho G., Picart C., Alves N. M., Mano J. F. Polymeric layer-by-layer films composed by natural polymers and based on the adhesive properties of mussels for biomedical applications, Journal of Tissue Engineering and Regenerative Medicine, Vol. 7, Issue 1, pp. 6-52, doi:DOI: 10.1002/term.1822, 2013
Abstract(s)Some marine species, such as mussels, can strongly attach themselves to rocks in the diffficult conditions of the sea. In fact, marine mussels secrete adhesive proteins that show a high adhesion to both inorganic and organic surfaces in aqueous environments. These proteins have an amino acid designated as 3,4-dihydroxy-L-phenylalanine (DOPA) which in turn possesses catechol groups that are primarily responsible for these strong adhesive bonds. Inspired by this behaviour, layer-by-layer (LbL) films based on polymers that contain catechol groups were developed. It is expected that such materials will present an enhanced cell adhesion when they are applied in biomedical applications. Dopamine-modified hyaluronic acid (HA-DN), which possesses catechol groups, was prepared by carbodiimide chemistry. This conjugate was characterized by distinct techniques, such as nuclear magnetic resonance (NMR) and ultra-violet spectrophotometry (UV). Then films were developed based on chitosan (CHT) and HA-DN using the Layer-by-Layer (LbL) technique. The formation of these films was investigated in-situ by quartz crystal microbalance with dissipation monitoring (QCM-D). The adhesion properties of the coatings were also analyzed. In vitro tests using distinct cell sources revealed an enhanced cell adhesion, proliferation and viability for the films that contain catechol groups, which demonstrates their potential to be used in biomedical applications.
TypeAbstract
DescriptionPublicado em "Journal of Tissue Engineering and Regenerative Medicine", vol. 7, supp. 1 (2013)
URIhttp://hdl.handle.net/1822/26882
Publisher versionhttp://onlinelibrary.wiley.com/doi/10.1002/term.2013.7.issue-s1/issuetoc
Peer-Reviewedyes
AccessOpen access
Appears in Collections:3B’s - Resumos em livros de atas de conferências - indexados no ISI Web of Science

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