TLC-SERS Plates with a Built-In SERS Layer Consisting of Cap-Shaped Noble Metal Nanoparticles Intended for Environmental Monitoring and Food Safety Assurance

Takei H, Saito J, Kato K, Vieker H, Beyer A, Gölzhäuser A (2015)
Journal of Nanomaterials.

Journal Article | Published | English

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Abstract
We report on a thin layer chromatograph (TLC) with a built-in surface enhanced Raman scattering (SERS) layer for in-situ identification of chemical species separated by TLC. Our goal is to monitor mixture samples or diluted target molecules suspended in a host material, as happens often in environmental monitoring or detection of food additives. We demonstrate that the TLC-SERS can separate mixture samples and provide in-situ SERS spectra. One sample investigated was a mixture consisting of equal portions of Raman-active chemical species, rhodamine 6 G (R6G), crystal violet (CV), and 1,2-di(4-pyridyl)ethylene (BPE). The three components could be separated and their SERS spectra were obtained from different locations. Another sample was skim milk with a trace amount of melamine. Without development, no characteristic peaks were observed, but after development, a peak was observed at 694 cm(-1). Unlike previous TLC-SERS whereby noble metal nanoparticles are added after development of a sample, having a built-in SERS layer greatly facilitates analysis as well as maintaining high uniformity of noble metal nanoparticles.
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Takei H, Saito J, Kato K, Vieker H, Beyer A, Gölzhäuser A. TLC-SERS Plates with a Built-In SERS Layer Consisting of Cap-Shaped Noble Metal Nanoparticles Intended for Environmental Monitoring and Food Safety Assurance. Journal of Nanomaterials. 2015.
Takei, H., Saito, J., Kato, K., Vieker, H., Beyer, A., & Gölzhäuser, A. (2015). TLC-SERS Plates with a Built-In SERS Layer Consisting of Cap-Shaped Noble Metal Nanoparticles Intended for Environmental Monitoring and Food Safety Assurance. Journal of Nanomaterials.
Takei, H., Saito, J., Kato, K., Vieker, H., Beyer, A., and Gölzhäuser, A. (2015). TLC-SERS Plates with a Built-In SERS Layer Consisting of Cap-Shaped Noble Metal Nanoparticles Intended for Environmental Monitoring and Food Safety Assurance. Journal of Nanomaterials.
Takei, H., et al., 2015. TLC-SERS Plates with a Built-In SERS Layer Consisting of Cap-Shaped Noble Metal Nanoparticles Intended for Environmental Monitoring and Food Safety Assurance. Journal of Nanomaterials.
H. Takei, et al., “TLC-SERS Plates with a Built-In SERS Layer Consisting of Cap-Shaped Noble Metal Nanoparticles Intended for Environmental Monitoring and Food Safety Assurance”, Journal of Nanomaterials, 2015.
Takei, H., Saito, J., Kato, K., Vieker, H., Beyer, A., Gölzhäuser, A.: TLC-SERS Plates with a Built-In SERS Layer Consisting of Cap-Shaped Noble Metal Nanoparticles Intended for Environmental Monitoring and Food Safety Assurance. Journal of Nanomaterials. (2015).
Takei, H., Saito, J., Kato, K., Vieker, Henning, Beyer, André, and Gölzhäuser, Armin. “TLC-SERS Plates with a Built-In SERS Layer Consisting of Cap-Shaped Noble Metal Nanoparticles Intended for Environmental Monitoring and Food Safety Assurance”. Journal of Nanomaterials (2015).
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