Skip to main content

Research Repository

Advanced Search

Imaging immunoassay in negative: surface-catalysed chemiluminescence for the detection of pregnancy hormones in artificial saliva

Wright, Kevin J; Oiaidha, Zeid O; Love, Daniel P; Aljohani, Mohammed; Greenway, Gillian M; Wadhawan, Jay D

Authors

Kevin J Wright

Zeid O Oiaidha

Daniel P Love

Mohammed Aljohani

Gillian M Greenway

Jay D Wadhawan j.wadhawan@hull.ac.uk (JDW)



Abstract

A novel and rapid (45 min), quantitative chemiluminescence-based, surface immunoassay is reported for the detection of progesterone and œstriol in artificial saliva. The detection limits for these pregnancy hormones are 2.3 and 2.5 pg mL−1, respectively. The assay is based on the use of ferrocene-tagged, monoclonal antibodies immobilised on a surface, so that the oxidised ferricenium catalyses the reaction between luminol and hydrogen peroxide. The immunoassay is performed in negative, such that increasing the antigen concentration gives rise to decreasing light intensity that is observed, and is unaffected by antibody orientation on the surface. This affords a method of calibration that is readily translated to pregnancy hormone detection in a primary point-of-care environment. Biomolecules with similar structures to these pregnancy hormones found in saliva are demonstrated not to interfere with the immunoassay.

Citation

Wright, K. J., Oiaidha, Z. O., Love, D. P., Aljohani, M., Greenway, G. M., & Wadhawan, J. D. (2018). Imaging immunoassay in negative: surface-catalysed chemiluminescence for the detection of pregnancy hormones in artificial saliva. New journal of chemistry = Nouveau journal de chimie, 42(23), 18641-18648. https://doi.org/10.1039/c8nj02974a

Journal Article Type Article
Acceptance Date Oct 12, 2018
Online Publication Date Oct 12, 2018
Publication Date Oct 25, 2018
Deposit Date Dec 29, 2018
Publicly Available Date Oct 13, 2019
Print ISSN 1144-0546
Publisher Royal Society of Chemistry
Peer Reviewed Peer Reviewed
Volume 42
Issue 23
Pages 18641-18648
DOI https://doi.org/10.1039/c8nj02974a
Public URL https://hull-repository.worktribe.com/output/1114004
Publisher URL https://pubs.rsc.org/en/Content/ArticleLanding/2018/NJ/C8NJ02974A#!divAbstract
Additional Information The Decision Letter should be placed in the usual and appropriate place following the guidance from UoH Library and Information Services

Files






You might also like



Downloadable Citations