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A screen-printed carbon electrode modified with gold nanoparticles, poly(3,4-ethylenedioxythiophene), poly(styrene sulfonate) and a molecular imprint for voltammetric determination of nitrofurantoin
| Content Provider | Semantic Scholar |
|---|---|
| Author | Dechtrirat, Decha Yingyuad, Peerada Prajongtat, Pongthep Chuenchom, Laemthong Sriprachuabwong, Chakrit Tuantranont, Adisorn Tang, I-Ming |
| Copyright Year | 2018 |
| Abstract | AbstractA molecularly imprinted polymer (MIP) and a nanocomposite prepared from gold nanoparticles (AuNP) and poly(3,4-ethylenedioxythiophene)/poly(styrene sulfonate) (PEDOT:PSS) were deposited on a screen-printed carbon electrode (SPCE). The nanocomposite was prepared by one-pot simultaneous in-situ formation of AuNPs and PEDOT:PSS and was then inkjet-coated onto the SPCE. The MIP film was subsequently placed on the modified SPCE by co-electrodeposition of o-phenylenediamine and resorcinol in the presence of the antibiotic nitrofurantoin (NFT). Using differential pulse voltammetry (DPV), response at the potential of ~ 0.1 V (vs. Ag/AgCl) is linear in 1 nM to 1000 nM NFT concentration range, with a remarkably low detection limit (at S/N = 3) of 0.1 nM. This is two orders of magnitude lower than that of the control MIP sensor without the nanocomposite interlayer, thus showing the beneficial effect of AuNP-PEDOT:PSS. The electrode is highly reproducible (relative standard deviation 3.1% for n = 6) and selective over structurally related molecules. It can be re-used for at least ten times and was found to be stable for at least 45 days. It was successfully applied to the determination of NFT in (spiked) feed matrices and gave good recoveries. Graphical abstractSchematic representation of a voltammetric sensor for the determination of nitrofurantoin. The sensor is based on a screen-printed carbon electrode (SPCE) modified with an inkjet-printed gold nanoparticles-poly(3,4-ethylenedioxythiophene):poly(styrene sulfonate) nanocomposite and a molecularly imprinted polymer. |
| Starting Page | 1 |
| Ending Page | 9 |
| Page Count | 9 |
| File Format | PDF HTM / HTML |
| DOI | 10.1007/s00604-018-2797-3 |
| PubMed reference number | 29687295 |
| Journal | Medline |
| Volume Number | 185 |
| Alternate Webpage(s) | https://static-content.springer.com/esm/art:10.1007%2Fs00604-018-2797-3/MediaObjects/604_2018_2797_MOESM1_ESM.pdf |
| Alternate Webpage(s) | https://doi.org/10.1007/s00604-018-2797-3 |
| Journal | Microchimica Acta |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
