Tag: sensor

Heavy metals sensor platform developed during the COMMON SENSE project

From left to right: Pablo Fanjul (DropSens), Cesar Fernández (CNM), Martí Gich (NN Group), Carla Navarro (DropSens), Anna Roig (NN Group), Margaret McCaul (DCU)

A sensor platform to detect heavy metals has been developed within the COMMON SENSE project and presented during its final event, last Friday 27th January.

The partners that participated in the development of this sensor platform are Dublin City University (DCU), DropSens, National Center of Microelectronics (CNM-IMB) (CSIC), and the Nanoparticles and Nanocomposites Group (NN) at ICMAB (CSIC)

Highlights of the heavy metals sensor platform (photo):

  • Autonomous system for the detection of cadmium (Cd2+), lead (Pb2+), copper (Cu2+) and mercury (Hg2+) ions at trace level.
  • Modular design.
  • Adjustable flow control for heavy metals detection.
  • No pre-treatment of samples necessary.
  • No pre-concentraton of samples necessary. The sensor directly operates on-site and pre-concentrates the heavy metals on the surface of the electrode.
  • Complete mixing of the sample and buffer in a microfluidic chip.
  • Storage container for reagent waste designed for easy on-site maintenance. 
Heavy metals sensor platform, with a TRL=7

Apart from this sensor, in which the NN Group has participated, the COMMON SENSE project has developed prototypes of other in situ next generation marine monitoring sensors:

  • Microplastics analyser
  • Underwater noise sensor
  • Eutrophication sensor
  • Autonomous pH and pCO2 sensors
  • Innovative temperature and pressure sensors

For more information, please visit the COMMON SENSE project website or contact the leader of the Dissemination and Knowledge Management Work Package, Cliona Ní Cheallachain (cliona@aquatt.ie). 

The COMMON SENSE project has received funding from the European Union’s Seventh Framework Program (Ocean 2013-2) under grant agreement no 614155.

COMMON SENSE RESULTS: First test of the newly developed heavy metal sensors for Cd and Pb in natural sea water samples

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This first test using natural Mediterranean seawater has shown that the method and electrodes worked correctly.

Studies were done at the Institut de Ciències del Mar (ICM-CSIC) in the Aquaria and Experimental Chambers (ZAE) facilities.

The water salinity of the samples was ~38, that is, nearly the highest values (40) that can be found in open seas worldwide. Neither “recent” nor “old” seawater analysed showed significant values of Cd and Pb. However, Cu was detected in the “old” seawater. These results are in accordance to the periodic control analyses carried out in the ZAE.

Laura Asturias (NAPCOM-CSIC) and Jordi Salat (ICM-CSIC)

See complete NOTE: First Tests

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COLLABORATION PROJECT WITH CNM-CSIC. FIRST PAPER ACCEPTED!

altFirst published results on the electrochemichal sensor for heavy metals project as a part of the PhD thesis of Pengfei that is co-supervised by Martí Gich of our group and Cesar Fernandez-Sanchez of the CNM-CSIC                                           

Facile Synthesis of Porous Bismuth-Carbon Nanocomposites for the Sensitive Detection of Heavy Metals
Marti Gich, Cesar Fernandez-Sanchez, Liviu Cosmin Cotet, Pengfei Niu and Anna Roig  

J. Mater. Chem. A, 2013, Accepted Manuscript DOI: 10.1039/C3TA12190A, Paper

 http://pubs.rsc.org/en/Content/ArticleLanding/2013/TA/C3TA12190A