Silver melamine thin film as a flexible platform for SERS analysis

Abstract

The new detection SERS platform is applicable for the quick and easy formation of sensing devices for food, agriculture, and environmental science. For quantitative sensing, it is important that a...

Towards practical and sustainable SERS: a review of recent developments in the construction of multifunctional enhancing substrates

“…This method typically involves in-situ chemical reduction of noble metal precursors physically dispersed in a flexible and adsorptive matrix, such as paper or textile. [109][110][111][112] For example, Ge, et al reported a large-scale synthesis of flexible cotton SERS wipes for trace analysis of surface residues. 113 The cotton SERS wipes were produced by dipping cotton sheets in AgNO 3 solution and then in a solution of ascorbic acid reducing agent, which led to the formation of Ag nanoparticles on the surface of the cotton fibers.…”

Investigation of a Highly Sensitive Surface-Enhanced Raman Scattering Substrate Formed by a Three-Dimensional/Two-Dimensional Graphene/Germanium Heterostructure

“…Figure b shows the SERS spectra recorded using solutions containing 0.1–1000 ppm of Mel. The strong peak at 673 cm –1 is characteristic of the Mel molecule and can be observed in each spectrum (this peak is attributed to the ring-breathing II mode of Mel, which involves the in-plane deformation of the triazine ring) Figure c shows the variation of the intensities of the two main characteristic peaks of Mel (at 673 and 983 cm –1 ) plotted as a function of the concentration.…”

“…The strong peak at 673 cm −1 is characteristic of the Mel molecule and can be observed in each spectrum (this peak is attributed to the ring-breathing II mode of Mel, which involves the in-plane deformation of the triazine ring). 42 Figure 6c shows the variation of the intensities of the two main characteristic peaks of Mel (at 673 and 983 cm −1 ) plotted as a function of the concentration. Note the use of logarithmic scales and excellent linearity of the intensity data (R 2 values of 0.993 and 0.986, respectively).…”

Recent Progress of Layer‐by‐layer Assembly, Free‐Standing Film and Hydrogel Based on Polyelectrolytes

“…Films make it possible to grow nanostructures for SERS in situ. [ 72 ] Also, the application of the gradient structure formation based on the Liesegang rings formation process allows the formation of multifunctional complex films (Figure 5b). The ordered structure of silver nanoparticles in a film of agarose and pectin demonstrates a selective response to benzenethiol, which is a calibration standard for the determination of pesticides (Figure 5c).…”

“…The ordered structure of silver nanoparticles in a film of agarose and pectin demonstrates a selective response to benzenethiol, which is a calibration standard for the determination of pesticides (Figure 5c). [ 72 ]…”