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April 15-16, 2019 | Frankfurt, Germany
Applied Physics & Laser, Optics and Photonics
International Conference on
Materials Science and Nanotechnology | Volume: 3
Sensors of Triclosan on complex solutions
Maria Raposo
University of Lisbon, Portugal
C urrently, water supplies, water courses and
aquifers are known to be contaminated by
pesticides, industrial products and emergent
pharmaceuticals and personal care products
(PPCPs), with strong impact and inauspicious
effects in human and biota. In order to have
control over water quality with simple and
cheaper methods, it will be necessary to develop
sensors that allow the detection of pollutants
traces in a fast way. In this talk the achieved results
on the detection of Triclosan, a bacteriostatic
molecule used in PPCPs such as toothpaste or
soaps, on complex matrixes as effluent water, will
be presented. Electronic tongue concept based
in electrochemical or impedance measurements
are the most common methods to classify the
presence of molecules on complex solutions, and
the experimental results demonstrate that it is
possible with these techniques detect Triclosan in
aqueous complex solutions with concentrations
in the range of 10-15 to 10-6 M. However, optical
techniques as optical fibers, surface plasmon
resonance and light absorption can also be used
to detect Triclosan. A comparison of the results
obtained by the different methods will be also
presented and discussed.
Speaker Biography
Maria Raposo has completed her PhD in 1999 from Sao Paulo University,
Brazil. She is professor of University of Lisbon, Portugal. Since 2008,
she is head of the Functional Molecular Systems group which research
interests include electric and optical properties of ultra-thin films of
polymers and biomolecules, interfaces and nanotechnology, colloids,
molecular architectures for electronics, photonics and magnetism,
biomimetic membranes and radiation effect in biological systems. She
has over 100 publications that have been cited over 1000 times, and
her publication H-index is 18 and has been serving as an editorial board
member of some Journals.
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