Gold nanoparticles covalently assembled onto vesicle structures as possible biosensing platform

Autor: M. Fátima Barroso, M. Alejandra Luna, Juan S. Flores Tabares, Cristina Delerue-Matos, N. Mariano Correa, Fernando Moyano, Patricia G. Molina
Jazyk: angličtina
Rok vydání: 2016
Předmět:
Zdroj: Beilstein Journal of Nanotechnology, Vol 7, Iss 1, Pp 655-663 (2016)
Druh dokumentu: article
ISSN: 2190-4286
DOI: 10.3762/bjnano.7.58
Popis: In this contribution a strategy is shown to covalently immobilize gold nanoparticles (AuNPs) onto vesicle bilayers with the aim of using this nanomaterial as platform for the future design of immunosensors. A novel methodology for the self-assembly of AuNPs onto large unilamellar vesicle structures is described. The vesicles were formed with 1,2-dioleoyl-sn-glycero-3-phosphocholine (DOPC) and 1-undecanethiol (SH). After, the AuNPs photochemically synthesized in pure glycerol were mixed and anchored onto SH–DOPC vesicles. The data provided by voltammetry, spectrometry and microscopy techniques indicated that the AuNPs were successfully covalently anchored onto the vesicle bilayer and decorated vesicles exhibit a spherical shape with a size of 190 ± 10 nm. The developed procedure is easy, rapid and reproducible to start designing a possible immunosensor by using environmentally friendly procedures.
Databáze: Directory of Open Access Journals