Optical Cavity Fibre Sensor for Detection of Microcystin-LR in Water

• Tipo: Artigo em Livro de Atas de Conferência Internacional
• Data: 2010

Autores

Queiros, RB (Autor) Outra; Susana Silva (Autor) FCUP; Sales, MGF (Autor) Outra; Noronha, JP (Autor) Outra; Frazao, O (Autor) FCUP; Jorge, PAS (Autor) FCUP; Aguilar, GG (Autor) Outra

Ata de Conferência Internacional

Título: FOURTH EUROPEAN WORKSHOP ON OPTICAL FIBRE SENSORS

Fourth European Workshop on Optical Fibre Sensors

Porto, PORTUGAL, SEP 08-10, 2010

Indexação

ISI Web of Knowledge - 4 Citações

Scopus - 6 Citações

Outras Informações

ID Authenticus: P-003-AZS

DOI: 10.1117/12.865004

Abstract (EN): The deterioration of water quality by Cyanobacteria causes outbreaks and epidemics associated with harmful diseases in Humans and animals because of the released toxins. Microcystin-LR (mcyst) is one of the most widely studied hepatotoxin and World Health Organization recommends a maximum value of 1 mu g L-1 of mcyst in drinking-water. Therefore, there is a great demand for remote, real-time sensing techniques to detect and quantify the presence of mcyst. In this work a Fabry-Perot sensing probe based on a fibre tip coated with a mcyst sensitive thin film is presented. Highly specific recognition membranes, using sol-gel based Molecular Imprinted Polymers (MIPs), were developed to quantify microcystins in water, showing great potential in the analysis of this kind of samples. The fibre Fabry-Perot MIP sensor shows a linear response to mcyst concentration with a sensitivity of -13.2 +/- 0.4 nm L mu g(-1).

Idioma: Inglês

Tipo (Avaliação Docente): Científica

Nº de páginas: 4