Marine toxins produced by harmful algae have a significant threat to human health and environmental safety. In order to reduce the risk of marine toxins, rapid and accurate detection of the toxins is one of the effective methods. Electrochemical biosensors provide a new technique for accurate marine toxins analysis due to their characteristics of time saving, simplicity, high sensitivity, low detection limit, and low cost. Nowadays, the electrochemical biosensors used in marine toxin detection mainly include immunosensors, enzyme sensors and DNA sensors. In this article, the achievements on marine toxin electrochemical biosensor made so far are reviewed. Meanwhile, the current problems and development trend of marine toxins biosensors are discussed and prospected.
Contents
1 Introduction
2 Physicochemical properties and toxicity of marine toxins
2.1 Diarrheic shellfish poisoning
2.2 Neurologic shellfish poisoning
2.3 Amnesic shellfish poisoning
2.4 Paralytic shellfish poisoning