Development of a liposome immunosorbent assay for human interferon-y

Autor: G.W.K. Hugenholtz, W.P. van Bennekom, Auke Bult, P. H. Van Der Meide, H.A.H. Rongen, H.M. van der Horst
Rok vydání: 1994
Předmět:
Zdroj: Analytica Chimica Acta. 287:191-199
ISSN: 0003-2670
DOI: 10.1016/0003-2670(93)e0592-u
Popis: A novel and sensitive liposome immunosorbent assay (LISA) for IFN- y is described. Biotinylated liposomes with encapsulated carboxyfluorescien comprise a universal label for immunoassays. Stability of the liposomes is proven to be adequate for long-term storage, without loss of encapsulated marker. Sensitivity of the LISA of 6×10 −1 M is comparable to the best colorimetric immunoassays for IFN- y , and the linear detection range (6−2400×10 −12 M) exceeds the colorimetric range. Analysis of biological samples with the LISA showed no interference on the liposomes from potential disturbing factors in either plasma or blood cell culture supernatants.
Databáze: OpenAIRE