DNA-Mediated Liposome Fusion Observed by Fluorescence Spectrometry.
Methods Mol Biol
; 2063: 101-118, 2020.
Article
em En
| MEDLINE
| ID: mdl-31667766
ABSTRACT
DNA-programmed and controlled fusion of lipid membranes have recently been optimized to reliably mix the contents between two populations of liposomes, each functionalized with complementary lipidated DNA (LiNA) oligomer. In this chapter we describe a procedure for DNA-controlled fusion of liposomes mediated by LiNAs that are designed to force bilayers into close proximity. Using a self-quenching fluorescent dye (Sulforhodamine B) to monitor both the mixing of the internal volumes and leakage of the dye into the outer volume we measure the efficiency of content mixing in the bulk population, allowing for direct comparison between different LiNA designs. By generating samples for calibration corresponding to different amounts of content mixing, the average number of fusion events per labeled liposome can be estimated.
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Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Espectrometria de Fluorescência
/
DNA
/
Lipossomos
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Fusão de Membrana
Idioma:
En
Ano de publicação:
2020
Tipo de documento:
Article