Raman spectroscopy applied to diatoms (microalgae, Bacillariophyta): Prospective use in the environmental diagnosis of freshwater ecosystems

• Tipo: Outra Publicação em Revista Científica Internacional
• Data: 2021

Autores

Pinto, R (Autor) Outra; Vilarinho, R (Autor) Outra; Carvalho, AP (Autor) FCUP; Agostinho Moreira, JA (Autor) FCUP; Guimaraes, L (Autor) Outra; Luis Oliva Teles (Autor) FCUP

Revista

Título: Water Research

Vol. 198

ISSN: 0043-1354

Editora: Elsevier

Indexação

ISI Web of Knowledge - 7 Citações

Scopus - 6 Citações

Outras Informações

ID Authenticus: P-00T-PWM

DOI: 10.1016/j.watres.2021.117102

Abstract (EN): Diatom species are good pollution bioindicators due to their large distribution, fast response to changes in environmental parameters and different tolerance ranges. These organisms are used in ecological water assessment all over the world using autoecological indices. Such assessments commonly rely on the taxonomic identification of diatom species-specific shape and frustule ornaments, from which cell counts, species richness and diversity indices can be estimated. Taxonomic identification is, however, time-consuming and requires years of expertise. Additionally, though the diatom autoecological indices are region-specific, they are often applied indiscriminately across regions. Raman spectroscopy is a simpler, fast and label-free technique that can be applied to environmental diagnosis with diatoms. However, this approach has been poorly explored. This work reviews Raman spectroscopy studies involving the structure, location and conformation of diatom cell components and their variation under different conditions. A critical appreciation of the pros and cons of its application to environmental diagnosis is also given. This knowledge provides a strong foundation for the development of environmental protocols using Raman spectroscopy in diatoms. Our work aims at stimulating further research on the application of Raman spectroscopy as a tool to assess physiological changes and water quality under a changing climate.

Idioma: Inglês

Tipo (Avaliação Docente): Científica

Nº de páginas: 15