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Page 60
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
Among different electrochromic materials conducting
polymers and their derivatives are attractive due to their
ease of processability, good stability, rapid response time and
perfect optical properties. Conducting polymers are widely
used in the fabrication of many devices such as transistors,
sensors, biosensors and fuel cells. Furthermore, these polymers
possess unique electrochromic and electrochemical properties
and are perfect candidates for designing smart windows,
optical and electrochromic sensors. In this work a film of
electrochromic conducting polymers polyaniline and poly (3,
4-ethylenedioxythiophene) (PANI-PEDOT) was electrodeposited
on a transparent indium tin oxide (ITO) modified glass from a
water-based solution, characterized and applied for pH sensing.
The optical properties and response time of the developed
PANI-PEDOT film-based sensor was compared with PANI film.
In addition, the PANI-PEDOT, PANI and PEDOT films thickness,
surface activity, charge density and diffusion coefficient were
calculated and compared. The doping of PANI by PEDOT improved
conductivity of the synthesized film and shortened the response
time of developed sensor. Absorbance at maximum of the three
peaks (448, 602 and 895 nm) of PANI-PEDOT film depended
linearly on the pH value of the solution in the range from 3.8 to
7.4. The developed sensor can be used for pH determination
in physiologically important pH interval, especially when
acidification of physiological fluids occurs during the course of
the disease. In addition, synthesized PANI-PEDOT film can be
used in the design of CO2 gas sensors sensitive to the pH change
of solution after the dissolution of gas.
Recent Publications
1. Gicevicius M, Celiesiute R, Kucinski J, Ramanaviciene
A, Bagdziunas G and Ramanavicius A (2018) Analytical
evaluation of optical pH-sensitivity of polyaniline layer
electrochemically deposited on ITO electrode. Journal of
The Electrochemical Society 165(14):H903-H907.
2. Naveen M H, Gurudatt N G and Shim Y B (2017)
Applications of conducting polymer composites to
electrochemical sensors: a review. Applied Materials
Today 9:419-433.
3. Deshmukh M A, Gicevicius M, Ramanaviciene A,
Shirsat M D, Viter R and Ramanavicius A (2017) Hybrid
electrochemical/ electrochromic Cu(II) ion sensor
prototype based on PANI/ITO-electrode. Sensors and
Actuators B Chemical 248:527-535.
4. Das T K and Prusty S (2012) Review on conducting
polymers and their applications. Polymer Plastics
Technology Engineering 51(14):1487-1500.
Biography
Almira Ramanaviciene has completed her PhD in Biomedicine in the Insti-
tute of Immunology at Vilnius University, Lithuania in 2002. During 16 years
of her research experience she gathered deep knowledge in biosensors de-
velopment using electrochemical, optical and acoustic signal transducers.
She has comprehensive experience in the synthesis of conducting poly-
mers; metallic and polymeric nanoparticles and surface modification with
different nanostructures and biomolecules. She is the co-author of more
than 160 peer-reviewed research papers and reviews.
Almira Ramanaviciene, Anton Popov, Benediktas Brasiunas, Lina Mikoliunaite and
Arunas Ramanavicius
Vilnius University, Lithuania
Almira Ramanaviciene et al., Nano Res Appl 2018, Volume 4
DOI: 10.21767/2471-9838-C7-028
Sensing properties of electrochemically
deposited polyaniline film doped with poly (3,
4-ethylenedioxythiophene)