Abstract
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.].
| Original language | English |
|---|---|
| Article number | 33 |
| Journal | Microchimica Acta |
| Volume | 187 |
| Issue number | 1 |
| DOIs | |
| Publication status | Published - 2020 Jan 1 |
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All Science Journal Classification (ASJC) codes
- Analytical Chemistry
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A composite film prepared from titanium carbide Ti3C2Tx (MXene) and gold nanoparticles for voltammetric determination of uric acid and folic acid. / Elumalai, Satheeshkumar; Mani, Veerappan; Jeromiyas, Nithiya; Ponnusamy, Vinoth Kumar; Yoshimura, Masahiro.
In: Microchimica Acta, Vol. 187, No. 1, 33, 01.01.2020.Research output: Contribution to journal › Article
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
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.].
UR - http://www.scopus.com/inward/record.url?scp=85076275394&partnerID=8YFLogxK
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 -