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Nano Research & Applications
ISSN: 2471-9838
Volume 4
December 10-12, 2018
Rome, Italy
Advanced Materials 2018
Nano Engineering 2018
Page 14
JOINT EVENT
22
nd
International Conference on
Advanced Materials
and Simulation
&
22
nd
Edition of International Conference on
Nano Engineering &
Technology
C
ultural heritage is seriously threatened by the presence of low
concentrations of destructive gases and VOCs from indoor
air at museums. Typically, primarily responsible of artefact
degeneration are composed of acetic acid and NO/NO
2
. Thus,
a device that can detect those gases and O
2
simultaneously
would be most beneficial in preservation of the cultural heritage.
In this study, we are aimed to develop a sensor array, within
the NEMOSINE project GA760801, composed of three sensing
module to detect acetic acid, NO and O
2
simultaneously. At the
first stage, 1D ZnO nanorods and nanowires were synthesized and
conducting polymers of polyaniline (PANI) and polypyrrole (PPy) was
formed by solution polymerization method. Interaction between
ZnO nanoparticle and conducting polymers has been studied
using X-ray diffraction (XRD), SEM and PL spectroscopy. The
ammonia gas sensing behaviours of the ZnO/PANI and ZnO/
PPy composites were examined at various ambient conditions.
Newly designed chamber was used to hold sensing layer,
excitation light and detectors. The acetic acid sensor, changes its
photoluminescence when the sensing film adsorbs or desorbs
acetic acid in gas status. An optical fibre is employed tomeasure
variations in photoluminescence of the ZnO-conducting polymer
in the presence of acetic acid vapour. Experimental results
show that the sensitivity of the acetic acid is about 0.4 ppm at
operating temperatures ranging from 25 to 40°C in air with a
linear range 0.5-100 ppm. The response time was very short,
which was 3.5 s when the target gases switched from 0 ppm to
1 ppm, and 10 s for regeneration of initial signal for subsequent
measurements. Comparatively, we assembled complementary
metal oxide semiconductor substrate (CMOS) composed of
metal oxide semiconductor (MOS) nanostructures as a resistive
type sensor integrated with a readout circuit and heater on a chip
formonitoring thepresenceof VOCsamples in the air.The results
suggest that this novel ZnO/PANI composite based nanosensor
and complementary miniaturized CMOS sensor shows great
potential in the field of mobile environmental air monitoring and
could also be modified by different sensitive materials to detect
various molecules or ions in the future.
Recent Publications
1. Turemis M et al., (2018) Optical biosensor based
on microalga-paramecium symbiosis for improved
marine monitoring. Sensors and Actuators B: Chemical
270:424-432.
2. TuremisMet al., (2017) Anovel optical/electrochemical
biosensor for real time measurement of physiological
effect of astaxanthin on algal photoprotection. Sensors
and Actuators B: Chemical 241:993-1001.
3. Viter R et al., (2014) Application of room temperature
photoluminescence fromZnONano-rods forSalmonella
detection. IEEE Sensors Journal 14:2028-2034.
4. Viter R et al., (2016) Bioanalytical system for detection
of cancer cells with photoluminescent ZnO nanorods.
Nanotechnology 27:465101.
Biography
MTuremis received his MSc degree in Biochemistry from Ege Universitesi,
Izmir, Turkey in 2010 and a PhD degree in Biotechnology from the Univer-
sità della Tuscia of Viterbo within ITN Marie Curie project. Currently he is
working as an experienced researcher at Biosensor S.r.l. His research in-
terests focus on the development and characterization of biosensors and
their applications in the field of medicine, water treatment, and biotechnol-
ogies.
m.turemis@biosensor.it1-D ZnO/PANI and ZnO/
PPy composites based
photoluminescence sensor for
detection of acetic acid involved in
cultural heritage deterioration
M Turemis
Biosensor Srl, Italy
M Turemis, Nano Res Appl 2018, Volume 4
DOI: 10.21767/2471-9838-C7-026