Development of Nanomaterial-Modified Impedimetric Aptasensor-A Single-Step Strategy for 3,4-Methylenedioxymethylamphetamine Detection
Developing rapid, sensitive detection methods for 3,4-Methylenedioxymethylamphetamine (MDMA) is crucial to reduce its current misuse in the world population. With that aim, we developed an aptamer-modified tin nanoparticle (SnNP)-based nanoarchitecture as an electrochemical sensor in this study. This platform exhibited a high electron transfer rate with enhanced conductivity arising from its large surface area in comparison to the bare electrode. This observation was explained by the 40-fold higher electroactive surface area of SnNPsAu, which provided a large space for 1.0 μM AptMDMA (0.68 ± 0.36 × 1012 molecule/cm2) immobilization and yielded a significant electrochemical response in the presence of MDMA. Furthermore, the AptMDMA-modified SnNPs@Au sensing platform proved to be a simple yet ultrasensitive analytical device for MDMA detection in spiked biological and water samples. This novel electrochemical aptasensor showed good linearity in the range of 0.01-1.0 nM for MDMA (R2 = 0.97) with a limit of detection of 0.33 nM and a sensitivity of 0.54 ohm/nM. In addition, the device showed high accuracy and stability along with signal recoveries in the range of 92-96.7% (Relative Standard Deviation, RSD, 1.1-2.18%). In conclusion, the proposed aptasensor developed here is the first to combine SnNPs and aptamers for illicit compound detection, and it offers a reliable platform for recreational drug detection.
| Medienart: |
E-Artikel |
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| Erscheinungsjahr: |
2022 |
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| Erschienen: |
2022 |
| Enthalten in: |
Zur Gesamtaufnahme - volume:12 |
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| Enthalten in: |
Biosensors - 12(2022), 7 vom: 20. Juli |
| Sprache: |
Englisch |
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| Beteiligte Personen: |
Soni, Shringika [VerfasserIn] |
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| Links: |
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| Anmerkungen: |
Date Completed 28.07.2022 Date Revised 31.07.2022 published: Electronic Citation Status MEDLINE |
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| doi: |
10.3390/bios12070538 |
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| funding: |
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| Förderinstitution / Projekttitel: |
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| 520 | |a Developing rapid, sensitive detection methods for 3,4-Methylenedioxymethylamphetamine (MDMA) is crucial to reduce its current misuse in the world population. With that aim, we developed an aptamer-modified tin nanoparticle (SnNP)-based nanoarchitecture as an electrochemical sensor in this study. This platform exhibited a high electron transfer rate with enhanced conductivity arising from its large surface area in comparison to the bare electrode. This observation was explained by the 40-fold higher electroactive surface area of SnNPsAu, which provided a large space for 1.0 μM AptMDMA (0.68 ± 0.36 × 1012 molecule/cm2) immobilization and yielded a significant electrochemical response in the presence of MDMA. Furthermore, the AptMDMA-modified SnNPs@Au sensing platform proved to be a simple yet ultrasensitive analytical device for MDMA detection in spiked biological and water samples. This novel electrochemical aptasensor showed good linearity in the range of 0.01-1.0 nM for MDMA (R2 = 0.97) with a limit of detection of 0.33 nM and a sensitivity of 0.54 ohm/nM. In addition, the device showed high accuracy and stability along with signal recoveries in the range of 92-96.7% (Relative Standard Deviation, RSD, 1.1-2.18%). In conclusion, the proposed aptasensor developed here is the first to combine SnNPs and aptamers for illicit compound detection, and it offers a reliable platform for recreational drug detection | ||
| 650 | 4 | |a Journal Article | |
| 650 | 4 | |a 3,4-methylenedioxymethylamphetamine | |
| 650 | 4 | |a aptamer | |
| 650 | 4 | |a electrochemical sensor | |
| 650 | 4 | |a forensic | |
| 650 | 4 | |a recreational drugs | |
| 650 | 4 | |a tin nanoparticles | |
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| 650 | 7 | |a Gold |2 NLM | |
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| 650 | 7 | |a N-Methyl-3,4-methylenedioxyamphetamine |2 NLM | |
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| 700 | 1 | |a Jain, Utkarsh |e verfasserin |4 aut | |
| 700 | 1 | |a Burke, Donald H |e verfasserin |4 aut | |
| 700 | 1 | |a Chauhan, Nidhi |e verfasserin |4 aut | |
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