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Page 62
Volume 4
December 10-12, 2018
Rome, Italy
Nano Research & Applications
ISSN: 2471-9838
Advanced Materials 2018
Nano Engineering 2018
JOINT EVENT
22nd International Conference on
Advanced Materials
and Simulation
&
22 nd Edition of International Conference on
Nano Engineering &
Technology
C onducting polymer polypyrrole (Ppy) has a long history of
application in electrochemical sensor design. The polypyrrole
has the following key features: low cost, easy preparation
by chemical or electrochemical polymerization methods on
various types of electrodes, it is a very suitable and convenient
polymer as matrix for immobilization of biomolecules or
for molecular imprinting [1,2,3]. In present investigation we
studied the application of the Ppy as an electrochromic sensor.
Polypyrrole was electrochemically polymerized on the indium
tin oxide coated glass (ITO) electrode. In previous studies it was
demonstrated, that electrode surface modification affects the
polymer film adhesion to electrode. So adhesion of Ppy on the
surface of ITO was alternated by ITO surface modification with
two types of silanes. In previous studies were shown that initial
electrochemical polymerization conditions principally determine
the redox behavior of Ppy. These properties of the obtained
Ppy layer are closely related to the electrochromic properties of
the polymer. Therefore several electrochemical polymerization
techniques were applied to obtain the Ppy on the ITO electrode.
Hereby we compared cyclic voltammetry, potential pulse
sequence and alternating current initiating electropolymerization
method. Alternating current initiating electropolymerization
method gives the ability to obtain thickest polypyrrole layer, but
this layer was less stable on ITO electrode. All obtained Ppy layers
were evaluated as possible candidates for the development of pH
and CO2 sensor.
Recent Publications
1. Ratautaite, V.; Plausinaitis, D.; Baleviciute, I.; Mikoliunaite,
L.; Ramanaviciene, A.; Ramanavicius, A. (2015)
Characterization of Caffeine-Imprinted Polypyrrole by
a Quartz Crystal Microbalance and Electrochemical
Impedance Spectroscopy. Sensor Actuat B-Chem,
212:63-71.
2. Ratautaite, V.; Topkaya, S. N.; Mikoliunaite, L.; Ozsoz, M.;
Oztekin, Y.; Ramanaviciene, A.; Ramanavicius, A. (2013)
Molecularly ImprintedPolypyrrole for DNADetermination
Electroanalysis 25 (5):1169-1177.
3. Ratautaite, V.; Nesladek, M.; Ramanaviciene, A.;
Baleviciute, I.; Ramanavicius, A. (2014) Evaluation of
Histamine Imprinted Polypyrrole Deposited on Boron
Doped Nanocrystalline Diamond. Electroanalysis
26:2458–2464.
4. Plausinaitis, D.; Ratautaite, V.; Mikoliunaite, L.;
Sinkevicius, L.; Ramanaviciene, A.; Ramanavicius, A.
(2015) Quartz Crystal Microbalance-Based Evaluation
of the Electrochemical Formation of an Aggregated
Polypyrrole Particle-Based Layer. Langmuir 31
(10):3186-3193.
5. Ratautaite, V.; Ramanaviciene, A.; Oztekin, Y.; Voronovic,
J.; Balevicius, Z.; Mikoliunaite, L.; Ramanavicius, A.
(2013) Electrochemical stability and repulsion of
polypyrrole film. Colloid Surface A 418 (0): 16-21.
Biography
Dr. Vilma Ratautaite received the PhD degree in Chemistry from Vytautas
Magnus University, Kaunas, Lithuania in 2009. Currently she is researcher
at the Institute of chemistry, Faculty of Chemistry and Geosciences, Vilni-
us University. She has research interests related in application of conduct-
ing polymers, such as polypyrrole, for electrochemical sensor design. She
has investigated the polypyrrole in purpose use it as molecularly imprinted
polymer, or electrochromic polymer. Other fields of scientific interests are
a chromatography and electro-migration (capillary electrochromatography
and capillary electrophoresis) methods.
Vilma Ratautaite, Gintautas Bagdžiunas, Arunas Ramanavicius and Almira
Ramanaviciene
Vilnius University, Lithuania
Vilma Ratautaite, Nano Res Appl 2018, Volume 4
DOI: 10.21767/2471-9838-C7-028
Application of conducting polymer polypyrrole as
electrochromic sensor of pH and CO2