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            <front>

                <journal-meta>
                                                                <journal-id>hittite j sci eng</journal-id>
            <journal-title-group>
                                                                                    <journal-title>Hittite Journal of Science and Engineering</journal-title>
            </journal-title-group>
                                        <issn pub-type="epub">2148-4171</issn>
                                                                                            <publisher>
                    <publisher-name>Hitit University</publisher-name>
                </publisher>
                    </journal-meta>
                <article-meta>
                                        <article-id pub-id-type="doi">10.17350/HJSE19030000308</article-id>
                                                                <article-categories>
                                            <subj-group  xml:lang="en">
                                                            <subject>Materials Engineering (Other)</subject>
                                                    </subj-group>
                                            <subj-group  xml:lang="tr">
                                                            <subject>Malzeme Mühendisliği (Diğer)</subject>
                                                    </subj-group>
                                    </article-categories>
                                                                                                                                                        <title-group>
                                                                                                                        <article-title>Electrochemical Dopamine Detection Using Palladium/Carbon Nano Onion Hybrids</article-title>
                                                                                                                                        </title-group>
            
                                                    <contrib-group content-type="authors">
                                                                        <contrib contrib-type="author">
                                                                    <contrib-id contrib-id-type="orcid">
                                        https://orcid.org/0000-0002-4906-9223</contrib-id>
                                                                <name>
                                    <surname>Ipekcı</surname>
                                    <given-names>Hasan Hüseyin</given-names>
                                </name>
                                                                    <aff>Necmettin Erbakan University</aff>
                                                            </contrib>
                                                                                </contrib-group>
                        
                                        <pub-date pub-type="pub" iso-8601-date="20230930">
                    <day>09</day>
                    <month>30</month>
                    <year>2023</year>
                </pub-date>
                                        <volume>10</volume>
                                        <issue>3</issue>
                                        <fpage>201</fpage>
                                        <lpage>209</lpage>
                        
                        <history>
                                    <date date-type="received" iso-8601-date="20230113">
                        <day>01</day>
                        <month>13</month>
                        <year>2023</year>
                    </date>
                                                    <date date-type="accepted" iso-8601-date="20230705">
                        <day>07</day>
                        <month>05</month>
                        <year>2023</year>
                    </date>
                            </history>
                                        <permissions>
                    <copyright-statement>Copyright © 2014, Hittite Journal of Science and Engineering</copyright-statement>
                    <copyright-year>2014</copyright-year>
                    <copyright-holder>Hittite Journal of Science and Engineering</copyright-holder>
                </permissions>
            
                                                                                                <abstract><p>In the given study, palladium-decorated carbon nano-onion nanostructures (Pd/CNO) were used as an electrochemical catalyst for detecting dopamine (DA). The physicochemical properties of the Pd/SO3H/CNO-based catalysts were studied by transmission electron microscopy (TEM), scanning electron microscopy (SEM), X-ray diffraction (XRD), and X-ray photoelectron spectroscopy (XPS) methods.  Pd/SO3H/CNO inks were dropped cast on a glassy carbon electrode (GCE) to prepare the electrochemical DA sensors.  The sensor performance was performed using cyclic voltammetry (CV), differential pulse voltammetry (DPV), and electrochemical impedance spectroscopy (EIS). The electroanalytical results indicated a LOD value of 2.44 M and the linear range of the sensors were found to be between 10 and 400 M DA. The enhanced electrocatalytic activity toward DA is attributed to the high active surface area, conductivity of CNO and the high electrocatalytic property of Pd. The results suggest that Pd/SO3H/CNO nanostructures can be used to detect electrochemical DA sensors with high selectivity, sensitivity, and low LOD.</p></abstract>
                                                                                    
            
                                                            <kwd-group>
                                                    <kwd>Carbon nano-onion</kwd>
                                                    <kwd>  palladium</kwd>
                                                    <kwd>  electrochemical sensor</kwd>
                                                    <kwd>  dopamine</kwd>
                                                    <kwd>  differential pulse voltammetry</kwd>
                                                    <kwd>  Carbon nano-onion</kwd>
                                                    <kwd>  palladium</kwd>
                                                    <kwd>  electrochemical sensor</kwd>
                                                    <kwd>  dopamine</kwd>
                                                    <kwd>  differential pulse voltammetry</kwd>
                                            </kwd-group>
                                                        
                                                                            <kwd-group xml:lang="tr">
                                                    <kwd>Carbon nano-onion</kwd>
                                                    <kwd>  palladium</kwd>
                                                    <kwd>  electrochemical sensor</kwd>
                                                    <kwd>  dopamine</kwd>
                                                    <kwd>  differential pulse voltammetry</kwd>
                                            </kwd-group>
                                                                                                            </article-meta>
    </front>
    <back>
                            <ref-list>
                                    <ref id="ref1">
                        <label>1</label>
                        <mixed-citation publication-type="journal">1. Zhao, K. and X. Quan, Carbon-Based Materials for Electrochemical
Reduction of CO2 to C2+ Oxygenates: Recent Progress and
Remaining Challenges. Acs Catalysis, 2021. 11(4): p. 2076-2097.</mixed-citation>
                    </ref>
                                    <ref id="ref2">
                        <label>2</label>
                        <mixed-citation publication-type="journal">2. Karimi, A., et al., Graphene based enzymatic bioelectrodes and
biofuel cells. Nanoscale, 2015. 7(16): p. 6909-6923.</mixed-citation>
                    </ref>
                                    <ref id="ref3">
                        <label>3</label>
                        <mixed-citation publication-type="journal">3. Najafi, A.S.G. and T. Alizadeh, One-step hydrothermal synthesis
of carbon nano onions anchored on graphene sheets for potential
use in electrochemical energy storage. Journal of Materials Science:
Materials in Electronics, 2022. 33(10): p. 7444-7462.</mixed-citation>
                    </ref>
                                    <ref id="ref4">
                        <label>4</label>
                        <mixed-citation publication-type="journal">4. Pallavolu, M.R., et al., A novel hybridized needle-like Co3O4/
N-CNO composite for superior energy storage asymmetric
supercapacitors. Journal of Alloys and Compounds, 2022. 908: p.
164447.</mixed-citation>
                    </ref>
                                    <ref id="ref5">
                        <label>5</label>
                        <mixed-citation publication-type="journal">5. Dalal, C., et al., Fluorescent carbon nano-onion as bioimaging
probe. ACS Applied Bio Materials, 2021. 4(1): p. 252-266.</mixed-citation>
                    </ref>
                                    <ref id="ref6">
                        <label>6</label>
                        <mixed-citation publication-type="journal">6. Kan, X., et al., 2008. - 112(- 13): p. - 4854.</mixed-citation>
                    </ref>
                                    <ref id="ref7">
                        <label>7</label>
                        <mixed-citation publication-type="journal">7. Yeon, J.H., et al., Generation of carbon nano-onions by laser
irradiation of gaseous hydrocarbons for high durability catalyst
support in proton exchange membrane fuel cells. Journal of
Industrial and Engineering Chemistry, 2019. 80: p. 65-73.</mixed-citation>
                    </ref>
                                    <ref id="ref8">
                        <label>8</label>
                        <mixed-citation publication-type="journal">8. Camisasca, A. and S. Giordani, Carbon nano-onions in biomedical
applications: Promising theranostic agents. Inorganica Chimica
Acta, 2017. 468: p. 67-76.</mixed-citation>
                    </ref>
                                    <ref id="ref9">
                        <label>9</label>
                        <mixed-citation publication-type="journal">9. Sharma, A., et al., 2022. - 7(- 42): p. - 37756.</mixed-citation>
                    </ref>
                                    <ref id="ref10">
                        <label>10</label>
                        <mixed-citation publication-type="journal">10. Tripathi, K.M., et al., From the traditional way of pyrolysis to
tunable photoluminescent water soluble carbon nano-onions for
cell imaging and selective sensing of glucose. RSC advances, 2016.
6(44): p. 37319-37329.</mixed-citation>
                    </ref>
                                    <ref id="ref11">
                        <label>11</label>
                        <mixed-citation publication-type="journal">11. Breczko, J., M.E. Plonska-Brzezinska, and L. Echegoyen, 2012. - 72:
p. - 67.</mixed-citation>
                    </ref>
                                    <ref id="ref12">
                        <label>12</label>
                        <mixed-citation publication-type="journal">12. Yang, J., Y. Zhang, and D.Y. Kim, Electrochemical sensing
performance of nanodiamond-derived carbon nano-onions:
Comparison with multiwalled carbon nanotubes, graphite
nanoflakes, and glassy carbon. Carbon, 2016. 98: p. 74-82.</mixed-citation>
                    </ref>
                                    <ref id="ref13">
                        <label>13</label>
                        <mixed-citation publication-type="journal">13. Babar, D.G., et al., Carbon Nano Onions–Polystyrene Composite
for Sensing S-Containing Amino Acids. Journal of Composites
Science, 2020. 4(3): p. 90.</mixed-citation>
                    </ref>
                                    <ref id="ref14">
                        <label>14</label>
                        <mixed-citation publication-type="journal">14. Sok, V. and A. Fragoso, Carbon nano-onion peroxidase composite
biosensor for electrochemical detection of 2, 4-D and 2, 4, 5-T.
Applied Sciences, 2021. 11(15): p. 6889.</mixed-citation>
                    </ref>
                                    <ref id="ref15">
                        <label>15</label>
                        <mixed-citation publication-type="journal">15. Aparicio-Martínez, E., et al., Flexible electrochemical sensor based
on laser scribed Graphene/Ag nanoparticles for non-enzymatic
hydrogen peroxide detection. Sensors and Actuators B: Chemical,
2019. 301: p. 127101.</mixed-citation>
                    </ref>
                                    <ref id="ref16">
                        <label>16</label>
                        <mixed-citation publication-type="journal">16. Ipekci, H.H., et al., Ink-jet Printing of Particle-Free Silver Inks on
Fabrics with a Superhydrophobic Protection Layer for Fabrication
of Robust Electrochemical Sensors. Microchemical Journal, 2021:
p. 106038.</mixed-citation>
                    </ref>
                                    <ref id="ref17">
                        <label>17</label>
                        <mixed-citation publication-type="journal">17. Mohapatra, J., et al., Enzymatic and non-enzymatic electrochemical
glucose sensor based on carbon nano-onions. Applied Surface
Science, 2018. 442: p. 332-341.</mixed-citation>
                    </ref>
                                    <ref id="ref18">
                        <label>18</label>
                        <mixed-citation publication-type="journal">18. Uzunoglu, A., A.D. Scherbarth, and L. Stanciu, Bimetallic PdCu/
SPCE non-enzymatic hydrogen peroxide sensors. 2015: Sensors and
Actuators B: Chemical. p. 968-976.</mixed-citation>
                    </ref>
                                    <ref id="ref19">
                        <label>19</label>
                        <mixed-citation publication-type="journal">19. Uzunoglu, A. and H.H. Ipekci, The use of CeO2-modified Pt/C
catalyst inks for the construction of high-performance enzyme-free
H2O2 sensors. Journal of Electroanalytical Chemistry, 2019. 848:
p. 113302.</mixed-citation>
                    </ref>
                                    <ref id="ref20">
                        <label>20</label>
                        <mixed-citation publication-type="journal">20. Wang, J., et al., Dopamine and uric acid electrochemical sensor
based on a glassy carbon electrode modified with cubic Pd and
reduced graphene oxide nanocomposite. Journal of colloid and
interface science, 2017. 497: p. 172-180.</mixed-citation>
                    </ref>
                                    <ref id="ref21">
                        <label>21</label>
                        <mixed-citation publication-type="journal">21. Uzunoglu, A., et al., PdAg-decorated three-dimensional reduced
graphene oxide-multi-walled carbon nanotube hierarchical
nanostructures for high-performance hydrogen peroxide sensing.
Mrs Communications, 2018. 8(3): p. 680-686.</mixed-citation>
                    </ref>
                                    <ref id="ref22">
                        <label>22</label>
                        <mixed-citation publication-type="journal">22. Sohouli, E., et al., Introducing a novel nanocomposite consisting
of nitrogen-doped carbon nano-onions and gold nanoparticles for
the electrochemical sensor to measure acetaminophen. Journal of
Electroanalytical Chemistry, 2020. 871: p. 114309.</mixed-citation>
                    </ref>
                                    <ref id="ref23">
                        <label>23</label>
                        <mixed-citation publication-type="journal">23. Dar, R.A., et al., Performance of palladium nanoparticle–graphene
composite as an efficient electrode material for electrochemical
double layer capacitors. Electrochimica Acta, 2016. 196: p. 547-557.</mixed-citation>
                    </ref>
                                    <ref id="ref24">
                        <label>24</label>
                        <mixed-citation publication-type="journal">24. Klębowski, B., et al., Applications of noble metal-based
nanoparticles in medicine. International journal of molecular
sciences, 2018. 19(12): p. 4031.</mixed-citation>
                    </ref>
                                    <ref id="ref25">
                        <label>25</label>
                        <mixed-citation publication-type="journal">25. Agostini, G., et al., Effect of pre-reduction on the properties and
the catalytic activity of Pd/carbon catalysts: A comparison with Pd/
Al2O3. ACS Catalysis, 2014. 4(1): p. 187-194.</mixed-citation>
                    </ref>
                                    <ref id="ref26">
                        <label>26</label>
                        <mixed-citation publication-type="journal">26. Fu, L., et al., Advanced Catalytic and Electrocatalytic Performances
of Polydopamine‐Functionalized Reduced Graphene Oxide‐
Palladium Nanocomposites. ChemCatChem, 2016. 8(18): p. 2975-
2980.</mixed-citation>
                    </ref>
                                    <ref id="ref27">
                        <label>27</label>
                        <mixed-citation publication-type="journal">27. Law, C.K.Y., et al., Electrochemically assisted production of
biogenic palladium nanoparticles for the catalytic removal of
micropollutants in wastewater treatment plants effluent. Journal of
Environmental Sciences, 2022.</mixed-citation>
                    </ref>
                                    <ref id="ref28">
                        <label>28</label>
                        <mixed-citation publication-type="journal">28. T, K., et al., - O5.1. Striatal Dopamine and Reduced Reward
Prediction Error Signaling In. - Schizophr Bull. 2020 May;46(Suppl
1):S11. doi: 10.1093/schbul/sbaa028.024. Epub, (- 0586-7614 (Print)):
p. T - ppublish.</mixed-citation>
                    </ref>
                                    <ref id="ref29">
                        <label>29</label>
                        <mixed-citation publication-type="journal">29. Whitton, A.E., et al., Baseline reward processing and ventrostriatal
dopamine function are associated with pramipexole response in
depression. Brain, 2020. 143(2): p. 701-710.</mixed-citation>
                    </ref>
                                    <ref id="ref30">
                        <label>30</label>
                        <mixed-citation publication-type="journal">30. Napier, T.C., A. Kirby, and A.L. Persons, 2020. - 102.</mixed-citation>
                    </ref>
                                    <ref id="ref31">
                        <label>31</label>
                        <mixed-citation publication-type="journal">31. Pan, X., et al., Dopamine and Dopamine Receptors in Alzheimer&#039;s
Disease: A Systematic Review and Network Meta-Analysis.
Frontiers in Aging Neuroscience, 2019. 11.</mixed-citation>
                    </ref>
                                    <ref id="ref32">
                        <label>32</label>
                        <mixed-citation publication-type="journal">32. Feng, P., et al., 2018. - 10(- 5): p. - 4368.</mixed-citation>
                    </ref>
                                    <ref id="ref33">
                        <label>33</label>
                        <mixed-citation publication-type="journal">33. Lin, T.-Y., et al., Diagnosis by simplicity: an aptachip for dopamine
capture and accurate detection with a dual colorimetric and
fluorometric system. Journal of Materials Chemistry B, 2018. 6(20):
p. 3387-3394.</mixed-citation>
                    </ref>
                                    <ref id="ref34">
                        <label>34</label>
                        <mixed-citation publication-type="journal">34. Zhang, X., et al., A simple, fast and low-cost turn-on fluorescence
method for dopamine detection using in situ reaction. Analytica
chimica acta, 2016. 944: p. 51-56.</mixed-citation>
                    </ref>
                                    <ref id="ref35">
                        <label>35</label>
                        <mixed-citation publication-type="journal">35. Vuorensola, K., H. Sirén, and U. Karjalainen, Determination of
dopamine and methoxycatecholamines in patient urine by liquid
chromatography with electrochemical detection and by capillary
electrophoresis coupled with spectrophotometry and mass
spectrometry. Journal of Chromatography B, 2003. 788(2): p. 277-
289.</mixed-citation>
                    </ref>
                                    <ref id="ref36">
                        <label>36</label>
                        <mixed-citation publication-type="journal">36. Uzunoglu, A. and L. Stanciu, Novel CeO2-CuO-decorated
enzymatic lactate biosensors operating in low oxygen environments.
Analytica Chimica Acta, 2016. 909: p. 121-128.</mixed-citation>
                    </ref>
                                    <ref id="ref37">
                        <label>37</label>
                        <mixed-citation publication-type="journal">37. Cumba, L.R., et al., Electrochemical properties of screen-printed
carbon nano-onion electrodes. Molecules, 2020. 25(17): p. 3884.</mixed-citation>
                    </ref>
                                    <ref id="ref38">
                        <label>38</label>
                        <mixed-citation publication-type="journal">38. Ozoemena, O.C., et al., Electrochemical sensing of dopamine
using onion-like carbons and their carbon nanofiber composites.
Electrocatalysis, 2019. 10(4): p. 381-391.</mixed-citation>
                    </ref>
                                    <ref id="ref39">
                        <label>39</label>
                        <mixed-citation publication-type="journal">39. Han, F.-D., B. Yao, and Y.-J. Bai, Preparation of carbon nano-onions
and their application as anode materials for rechargeable lithiumion
batteries. The Journal of Physical Chemistry C, 2011. 115(18):
p. 8923-8927.</mixed-citation>
                    </ref>
                                    <ref id="ref40">
                        <label>40</label>
                        <mixed-citation publication-type="journal">40. Xin, L., et al., Polybenzimidazole (PBI) Functionalized
Nanographene as Highly Stable Catalyst Support for Polymer
Electrolyte Membrane Fuel Cells (PEMFCs). Journal of the
Electrochemical Society, 2016. 163(10): p. F1228-F1236.</mixed-citation>
                    </ref>
                                    <ref id="ref41">
                        <label>41</label>
                        <mixed-citation publication-type="journal">41. Xing, L., et al., Understanding Pt Nanoparticle Anchoring on
Graphene Supports through Surface Functionalization. Acs
Catalysis, 2016. 6(4): p. 2642-2653.</mixed-citation>
                    </ref>
                                    <ref id="ref42">
                        <label>42</label>
                        <mixed-citation publication-type="journal">42. Bozkurt, S., et al., A hydrogen peroxide sensor based on TNM
functionalized reduced graphene oxide grafted with highly
monodisperse Pd nanoparticles. Analytica Chimica Acta, 2017.
989: p. 88-94.</mixed-citation>
                    </ref>
                                    <ref id="ref43">
                        <label>43</label>
                        <mixed-citation publication-type="journal">43. Wu, D., et al., 2014. - 116: p. - 249.</mixed-citation>
                    </ref>
                                    <ref id="ref44">
                        <label>44</label>
                        <mixed-citation publication-type="journal">44. Liu, Q., et al., Electrochemical detection of dopamine in the
presence of ascorbic acid using PVP/graphene modified electrodes.
Talanta, 2012. 97: p. 557-562.</mixed-citation>
                    </ref>
                                    <ref id="ref45">
                        <label>45</label>
                        <mixed-citation publication-type="journal">45. Palanisamy, S., S. Ku, and S.-M. Chen, Dopamine sensor based on
a glassy carbon electrode modified with a reduced graphene oxide
and palladium nanoparticles composite. Microchimica Acta, 2013.
180(11): p. 1037-1042.</mixed-citation>
                    </ref>
                                    <ref id="ref46">
                        <label>46</label>
                        <mixed-citation publication-type="journal">46. Yan, J., et al., Simultaneous electrochemical detection of ascorbic
acid, dopamine and uric acid based on graphene anchored with
Pd–Pt nanoparticles. Colloids and Surfaces B: Biointerfaces, 2013.
111: p. 392-397.</mixed-citation>
                    </ref>
                                    <ref id="ref47">
                        <label>47</label>
                        <mixed-citation publication-type="journal">47. Min, K. and Y.J. Yoo, Amperometric detection of dopamine based
on tyrosinase–SWNTs–Ppy composite electrode. Talanta, 2009.
80(2): p. 1007-1011.</mixed-citation>
                    </ref>
                                    <ref id="ref48">
                        <label>48</label>
                        <mixed-citation publication-type="journal">48. Aparna, T. and R. Sivasubramanian, Selective electrochemical
detection of dopamine in presence of ascorbic acid and uric acid
using NiFe2O4-activated carbon nanocomposite modified glassy
carbon electrode. Materials Today: Proceedings, 2018. 5(8): p.
16111-16117.</mixed-citation>
                    </ref>
                                    <ref id="ref49">
                        <label>49</label>
                        <mixed-citation publication-type="journal">49. Aparna, T., R. Sivasubramanian, and M.A. Dar, One-pot synthesis
of Au-Cu2O/rGO nanocomposite based electrochemical sensor for
selective and simultaneous detection of dopamine and uric acid.
Journal of Alloys and Compounds, 2018. 741: p. 1130-1141.</mixed-citation>
                    </ref>
                            </ref-list>
                    </back>
    </article>
