A Gold Nanoparticle-enhanced Surface Plasmon Resonance Aptasensor for the Detection of 2,4,6-trinitrotoluene
A gold nanoparticle-enhanced surface plasmon resonance (SPR) aptasensor was developed for high-specificity and high-sensitivity detection of 2,4,6-trinitrotoluene (TNT). Self-assembly film-forming technology was used to modify the gold surface of the sensor chip with 2,4,6-trinitrophenyl glycine, a...
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| Main Authors: | , , , , , |
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| Format: | Book |
| Published: |
Wolters Kluwer Medknow Publications,
2016-01-01T00:00:00Z.
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| Online Access: | Connect to this object online. |
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| Summary: | A gold nanoparticle-enhanced surface plasmon resonance (SPR) aptasensor was developed for high-specificity and high-sensitivity detection of 2,4,6-trinitrotoluene (TNT). Self-assembly film-forming technology was used to modify the gold surface of the sensor chip with 2,4,6-trinitrophenyl glycine, a TNT analogue, using polyethylene glycol to which the thiol group and carboxyl group are attached. Aptamer-gold nanoparticle complexes were formed through Au-S bonding. To detect TNT, the samples were incubated with the aptamer-gold nanoparticle complexes, and the solution competition method was applied through the SPR aptasensor. The results showed that the SPR aptasensor achieved fast, real-time detection of TNT. This gold nanoparticle-enhanced SPR aptasensor is suitable for TNT detection in the field of public safety and environmental monitoring. |
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| Item Description: | 2349-5014 10.4103/2349-5014.197934 |