Poly(allylamine hydrochloride) (PAH) and Bovine Serum Albumin (BSA) Protein Nanostructured as Layer-by-Layer Thin Films.
J Nanosci Nanotechnol
; 18(6): 3908-3915, 2018 Jun 01.
Article
em En
| MEDLINE
| ID: mdl-29442726
ABSTRACT
In this work it was studied the production of nanostructured thin films containing alternating layers of poly(allylamine hydrochloride) (PAH) and bovine serum albumin protein (BSA). It was studied the adsorption processes of these materials onto solid surfaces, which included adsorption kinetics and film growth studies by using UV-Vis spectroscopy. The film morphology, thickness and roughness were studied by using atomic force microscopy (AFM). The AFM results showed that the film presented a globular-like surface morphology and a thickness within the nanoscale, which could be controlled by the number of deposited layers. The roughness and thickness of the film depend on the number of deposited bilayers, where the film roughness increased for films with a number of bilayers up to five, after which the film roughness remained almost constant. This is an indicative that the adsorption and growth processes might occur under two different mechanisms, first under the influence of the substrate (films containing up to five bilayers of PAH/BSA), and second under the influence of the film previously deposited (films containing more than five bilayers of PAH/BSA), respectively.
Texto completo:
1
Base de dados:
MEDLINE
Assunto principal:
Poliaminas
/
Soroalbumina Bovina
/
Nanoestruturas
Limite:
Animals
Idioma:
En
Ano de publicação:
2018
Tipo de documento:
Article