alexa A Novel Optical Bioassay For The Detection Of Pesticides In Marine Environment Exploiting An Array Of Green Photosynthetic Microalgae
ISSN: 2155-6210

Journal of Biosensors & Bioelectronics
Open Access

Like us on:
OMICS International organises 3000+ Global Conferenceseries Events every year across USA, Europe & Asia with support from 1000 more scientific Societies and Publishes 700+ Open Access Journals which contains over 50000 eminent personalities, reputed scientists as editorial board members.

Open Access Journals gaining more Readers and Citations

700 Journals and 15,000,000 Readers Each Journal is getting 25,000+ Readers

This Readership is 10 times more when compared to other Subscription Journals (Source: Google Analytics)

Share This Page

Additional Info

Loading Please wait..
In Association with

7th Euro Biosensors and Bioelectronics Conference
July 10-11, 2017 Berlin, Germany

Laura Moro, Maria Teresa Giardi, Mehmet Turemis, Giuseppe Fusella, Amina Antonacci, Josep Sanchis, Renata Denaro, Maria Grazia Giacobbe, Francesca Crisafi and Viviana Scognamiglio
Biosensor Srl, Italy
Istituto di Cristallografia, Italy
Institute of Environmental Assessment and Water Research, Spain
Institute for Coastal Marine Environment-CNR, Italy
Posters & Accepted Abstracts: J Biosens Bioelectron
DOI: 10.4172/2155-6210-C1-034
Increasing pollution of marine environment requires development of sensitive, cheap and adaptable early warning systems for on-site monitoring of chemical contaminants. Herein, we present an optical bioassay exploiting an array of green photosynthetic microalgae as a promising alternative for monitoring seawater pollutants, which can provide rapid and quantitative toxicity information while assessing the harmful effect on marine ecosystems. For bioassay optimization, several microalgae species from Chlorophycea, Trebouxiophycea, dinoflagellates, diatoms and Eustigmatophycea groups with different marine and non-marine origins were studied in marine environmental conditions. The lipid content of selected species was analyzed, since lipids have been proposed to be involved in protection mechanisms against salt stress. The fluorescence response of the algae photosystem II was examined in real-time in the presence of three commonly found marine pollutants that act as photosynthesis inhibitors: Simazine, diuron and irgarol. Algae from marine origin were discarded because of their low fluorescence response. The chemical pollutants were tested alone or in combination in a seawater matrix with non-marine algae species, and results validated by LC-MS. Pesticides were detected in seawater samples in the ng/L - low μg/L range, and a synergistic effect was observed when analyzing pesticide mixtures. The different algae species showed slightly diverse sensitivities for the three pollutants, being Chlorella mirabilis the most sensitive with a limit of detection of 67 ng/L for diuron. Therefore, a green microalgae-based bioassay was successfully developed for real-time monitoring of marine water quality and evaluation of bio-toxicity by the fluorescence analysis of photosystem II.

Email: [email protected]

image PDF   |   image HTML

Relevant Topics

Peer Reviewed Journals
Make the best use of Scientific Research and information from our 700 + peer reviewed, Open Access Journals
International Conferences 2017-18
Meet Inspiring Speakers and Experts at our 3000+ Global Annual Meetings

Contact Us

© 2008-2017 OMICS International - Open Access Publisher. Best viewed in Mozilla Firefox | Google Chrome | Above IE 7.0 version