SPR Based Fiber Optic Sensor for the Detection of Vitellogenin: An Endocrine Disruption Biomarker in Aquatic Environments

Sachin K Srivastava, Roli Verma, Banshi D Gupta, Isam Khalaila, Ibrahim Abdulhalim

Research output: Contribution to journalArticlepeer-review

Abstract

We have fabricated a fiber optic SPR biosensor for the detection of vitellogenin (Vg), an endocrine disruption biomarker in aquatic environments. The sensor was fabricated by immobilizing anti-Vg antibodies on the sensor surface. Control experiments performed on another similar protein, fetuin and on a sensing probe without the anti-Vg antibody receptor confirmed the specificity of the sensor. The limit of detection of the sensor was found to be as small as 1 ng/ml in our experimental window. The sensitivity of the sensor was 0.48 nm/(ng/ml). This sensor can be utilized for remote monitoring of the water bodies for any endocrine disruption phenomena.
Original languageAmerican English
Article number1000114
Number of pages5
JournalBiosensors
Volume4
Issue number1
DOIs
StatePublished - May 2015

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