advanced-materials-nano-engineering-2018-posters

9 / 31

Page 61
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
Electrochemical arrays and sensors can be made from
conducting polymers and applied in different fields such as
environmental and biomedical sciences and industry front due
to their attractive physical and chemical properties. Conducting
polymers are not expensive and easy to synthesize while being
distinguished by good stability and electrical conductivity.
Nanotechnology and nano science have a significant impact on
analytical chemistry, medicine, pharmacy and is still growing
every year. Gold nanoparticles and nanostructures are one of
the most widely used metal nano objects due to their desirable
physical and optical properties. Combining conducting polymers
with gold nano structures can significantly change the optical
and electrochemical properties of polymeric films. Gold
nanostructures are known as excellent chromophores due to
excitation of surface plasmons, leading to higher conductivity
and selectivity in addition to a change in optical properties of
polymers. The aim of this work was to investigate electrochromic
and optical properties of a polymer composite consisting of poly
(3, 4-ethylenedioxythiophene) (PEDOT) and polyaniline (PANI)
electrodeposited on indium tin oxide (ITO) coated glass pre-
modified with gold nano structures (AuNS). Different methods
were used for the electrochemical synthesis of AuNS onto
ITO coated glass slide. Electrochromic properties, absorbance
spectra, conductivity and stability of distinctly modified polymer
layers were determined and compared. In addition, sensitivity of
formed polymeric films to pH changes was evaluated.
Recent Publications
1. 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.
2. German N, Popov A, Ramanaviciene A and Ramanavicius
A(2017) Evaluationof enzymatic formationof polyaniline
nanoparticles. Polymer 115:211-216.
3. Ramanaviciene A, Voronovic J, Popov A, Drevinskas
R, Kausaite-Minkstimiene A and Ramanavicius A
(2016) Investigation of biocatalytic enlargement of
gold nanoparticles using dynamic light scattering and
atomic force microscopy. Colloids and Surfaces A:
Physicochemical and Engineering Aspects 510:183-189.
4. Mazeiko V, Kausaite-Minkstimiene A, Ramanaviciene
A, Balevicius Z and Ramanavicius A (2013) Gold
nanoparticle and conducting polymer-polyaniline-based
nanocomposites for glucose biosensor design. Sensors
and Actuators B: Chemical 189:187-193.
5. Ramanavicius A, Oztekin Y, Balevicius Z, Kausaite-
Mikstimiene A, Krikstolaityte V, Baleviciute I, Ratautaite
V and Ramanaviciene A (2012) Conducting and
electrochemically generated polymers in sensor design
(mini review). Procedia Engineering 47:825-828.
Biography
Benediktas Brasiunas is pursuing his Master’s degree in Chemistry in the
Institute of Chemistry, Faculty of Chemistry and Geosciences at Vilnius Uni-
versity, Lithuania. His subjects of interests and expertise are in nanotechnol-
ogy, glucose and other reducing sugar sensors and biosensors, conductive
polymers and their composites with nanostructures.
Benediktas Brasiunas, Anton Popov, Arunas Ramanavicius, Anzelika Damaskaite
and Almira Ramanaviciene
Vilnius University, Lithuania
Benediktas Brasiunas et al., Nano Res Appl 2018, Volume 4
DOI: 10.21767/2471-9838-C7-028
Preparation of gold nanostructures conducting
polymer composites for electrochemical and
optical sensors