Towards a remote portable bio-affinity surface plasmon resonance analyser for environmental steroidal-pollutants

Show simple item record

dc.contributor.advisor Cullen, David C. en_UK Sesay, Adama Marie en_UK 2005-11-23T13:49:10Z 2005-11-23T13:49:10Z 2003-10 en_UK
dc.description.abstract The widespread presence of chemicals with the capacity to disrupt the endocrine system in both wildlife and humans in our natural environment has increasingly become of major concern in the last ten years. Endocrine disrupting compounds (EDCs) are a group of compounds that pose a potentially dangerous and real threat to the health of both humans and wildlife. These substances can mimic or interfere with the biological pathways of natural endogenous signalling chemicals controlling the endocrine system (e.g. sex hormones). Endocrine disrupters are ubiquitous in water. The detection, monitoring and treatment of wastewaters and surface waters for EDCs would significantly help minimise the environmental burden imposed by these natural and synthetic compounds. To optimise such processes, an economical, in-situ or field-based detection technique for EDCs is required. The research presented in this thesis describes the development of a portable surface plasmon resonance device for the detection of endocrine disrupters in wastewater and surface waters. The first two result chapters describe the construction, development and optimisation of the portable analyser and immunoassay protocol using anti-estrogenic antibodies. A novel approach for regenerating the SPR sensing surface was achieved by using Persil biological laundry liquid (1%). The developed immunoassay showed a working range between 0.2 - 7µg/L for Estrone-3-Gulcuronide (E13G) in buffer. The detection of 17beta- Estradiol (E2) in buffer, synthetic wastewater and real wastewater samples was also carried out; the working range was 0.1 - 10µg/L; 0.3-7µg/L and 0.1-10µg/L respectively. The second part of the thesis describes the synthesis and protocol development of a photo-chromic dye and its application to immuno-sensing systems en route to a reversible bio-affinity antibody for application to regenerating biosensing surfaces. This approach was to demonstrate the concept of remote regeneration of the active sensing surface for a portable optical sensor. en_UK
dc.format.extent 1944 bytes
dc.format.extent 3255070 bytes
dc.format.mimetype text/plain
dc.format.mimetype application/pdf
dc.language.iso en_UK en_UK
dc.publisher Cranfield University en_UK
dc.title Towards a remote portable bio-affinity surface plasmon resonance analyser for environmental steroidal-pollutants en_UK
dc.type Thesis or dissertation en_UK
dc.type.qualificationlevel Doctoral
dc.type.qualificationname PhD
dc.publisher.department Institute of Bioscience and Technology

Files in this item

This item appears in the following Collection(s)

Show simple item record

Search CERES


My Account