Bio-inert interfaces via biomimetic anchoring of a zwitterionic copolymer on versatile substrates.
J Colloid Interface Sci
; 529: 77-89, 2018 Nov 01.
Article
em En
| MEDLINE
| ID: mdl-29886229
ABSTRACT
Bio-inert biomaterial design is vital for fields like biosensors, medical implants, and drug delivery systems. Bio-inert materials are generally hydrophilic and electrical neutral. One limitation faced in the design of bio-inert materials is that most of the modifiers used are specific to their substrate. In this work, we synthesized a novel zwitterionic copolymer containing a catechol group, a non-substrate dependent biomimetic anchoring segment, that can form a stable coating on various materials. No previous study was conducted using a grafting-to approach and determined the critical amount of catechol groups needed to effectively modify a material. The synthesized copolymers of sulfobetaine acrylamide (SBAA) and dopamine methacrylamide (DMA) in this work contains varying numbers of catechol groups, in which the critical number of catechol groups that had effectively modified substrates to have the bio-inert property was determined. The bio-inert property and capability to do coating on versatile substrates were evaluated in contact with human blood by coating different material groups such as ceramic, metallic, and polymeric groups. The novel structure and the simple grafting-to approach provides bio-inert property on various materials, giving them non-specific adsorption and attachment of biomolecules such as plasma proteins, erythrocytes, thrombocytes, bacteria, and tissue cells (85-95% reduction).
Palavras-chave
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Betaína
/
Materiais Biocompatíveis
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Acrilamidas
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Dopamina
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Catecóis
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Materiais Biomiméticos
Limite:
Animals
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Humans
Idioma:
En
Revista:
J Colloid Interface Sci
Ano de publicação:
2018
Tipo de documento:
Article
País de afiliação:
Taiwan