TY - JOUR
T1 - A composite film prepared from titanium carbide Ti3C2Tx (MXene) and gold nanoparticles for voltammetric determination of uric acid and folic acid
AU - Elumalai, Satheeshkumar
AU - Mani, Veerappan
AU - Jeromiyas, Nithiya
AU - Ponnusamy, Vinoth Kumar
AU - Yoshimura, Masahiro
N1 - Funding Information:
The authors would like to thank Professor Dr. Yury Gogotsi for the pristine MAX phase of Ti 3 AlC 2 and MXene-Ti 3 C 2 T x samples (MXene samples were prepared by Dr. Olha Mashtalir at Drexel University) from the Drexel University, PA, USA ( https://nano.materials.drexel.edu/ ). Also, the authors are grateful to Dr. Chia-Ying Su and Mr. Bo-Yong Wu for their help in this research project. And we thank to Dr. M. P. Karthikayini for the valuable comments on this manuscript. Dr. Satheeshkumar Elumalai acknowledges support from National Cheng Kung University (grant No. HUA 103-3-3-158 under “Aim for Top University Project (ATUP)” as ATUP Postdoctoral Fellowship) Taiwan.
Funding Information:
The authors would like to thank Professor Dr. Yury Gogotsi for the pristine MAX phase of Ti3 AlC2 and MXene-Ti3 C2 Tx samples (MXene samples were prepared by Dr. Olha Mashtalir at Drexel University) from the Drexel University, PA, USA (https://nano.materials.drexel.edu/ ). Also, the authors are grateful to Dr. Chia-Ying Su and Mr. Bo-Yong Wu for their help in this research project. And we thank to Dr. M. P. Karthikayini for the valuable comments on this manuscript. Dr. Satheeshkumar Elumalai acknowledges support from National Cheng Kung University (grant No. HUA 103-3-3-158 under ?Aim for Top University Project (ATUP)? as ATUP Postdoctoral Fellowship) Taiwan.
Publisher Copyright:
© 2019, Springer-Verlag GmbH Austria, part of Springer Nature.
PY - 2020/1/1
Y1 - 2020/1/1
N2 - In this study, a solution-processing based galvanic deposition approach is described for in-situ deposition of gold nanoparticles (AuNP) on delaminated titanium Ti3C2Tx nanosheets under ultrasonication. The nanocomposite (AuNP@Ti3C2Tx) was placed on a glassy carbon electrode (GCE) and then applied to electrochemically with label-free, and simultaneously sense uric acid (UA), and folic acid (FA) at physiological pH. The modified GCE has attractive figures of merit: (i) The working potentials for UA and AA are well separated (+0.35 V and 0.70 V vs. Ag|AgCl); (ii) wide linear responses (from 0.03–1520 μM for UA and from 0.02–3580 μM for FA; (iii) good electrochemical sensitivities for both UA and FA (0.53 and 0.494 μAμM−1.cm−2, respectively), and (iv) detection limits of 11.5 nM (UA) and 6.20 nM (FA). The electrode exhibited good repeatability (RSD = 4.4%), acceptable reproducibility (RSD = 4.1%), and excellent stability (91.8% over one-month storage). The method was applied to analyze spiked serum samples, and modified GCE is shown appreciable recoveries (97.1–98.8% and 96.8–98.0% for UA, and FA, respectively). [Figure not available: see fulltext.].
AB - In this study, a solution-processing based galvanic deposition approach is described for in-situ deposition of gold nanoparticles (AuNP) on delaminated titanium Ti3C2Tx nanosheets under ultrasonication. The nanocomposite (AuNP@Ti3C2Tx) was placed on a glassy carbon electrode (GCE) and then applied to electrochemically with label-free, and simultaneously sense uric acid (UA), and folic acid (FA) at physiological pH. The modified GCE has attractive figures of merit: (i) The working potentials for UA and AA are well separated (+0.35 V and 0.70 V vs. Ag|AgCl); (ii) wide linear responses (from 0.03–1520 μM for UA and from 0.02–3580 μM for FA; (iii) good electrochemical sensitivities for both UA and FA (0.53 and 0.494 μAμM−1.cm−2, respectively), and (iv) detection limits of 11.5 nM (UA) and 6.20 nM (FA). The electrode exhibited good repeatability (RSD = 4.4%), acceptable reproducibility (RSD = 4.1%), and excellent stability (91.8% over one-month storage). The method was applied to analyze spiked serum samples, and modified GCE is shown appreciable recoveries (97.1–98.8% and 96.8–98.0% for UA, and FA, respectively). [Figure not available: see fulltext.].
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UR - http://www.scopus.com/inward/citedby.url?scp=85076275394&partnerID=8YFLogxK
U2 - 10.1007/s00604-019-4018-0
DO - 10.1007/s00604-019-4018-0
M3 - Article
C2 - 31814085
AN - SCOPUS:85076275394
VL - 187
JO - Mikrochimica Acta
JF - Mikrochimica Acta
SN - 0026-3672
IS - 1
M1 - 33
ER -