In situ reduced silver nanoparticles embedded molecularly imprinted reusable sensor for selective and sensitive SERS detection of Bisphenol A

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

“…Au NPs decorated cicada wing [233] 10 [237] unspecified concentration of malachite green, 1 µM thiram water-ethanol solution visible light photocatalytic degradation rinse with deionized water for 5 s -visible light (1000 W xenon lamp, 400-800 nm) irradiation for 50 mins -rinse with deionized water for 5 sblow dry with nitrogen gas near-full removal of analyte; slight drop off in SERS activity after each regeneration cycle, maintained more than 70% SERS activity after 5 cycles using malachite green as analyte; maintained more than 83% SERS activity using thiram as analyte MoS 2 /Fe 2 O 3 heterojunction nanocomposite [248] [253] 1.00×10 -6 M rhodamine 6G superhydrophobicity sonicated in 30 mL of deionized water for 10 mins analyte fully removed; SERS activity decreased by 17.3% after 6 cycles Si wafer decorated with hierarchical Ag nanostructures on indium oxide nano-branches [254] 2.1×10 -5 M rhodamine 6G water solution superhydrophobicity sonicated in isopropyl-alcohol bath for 10 mins SERS activity fully maintained for 10 cycles MIP@Ag [266] 1×10 -5 M bisphenol A in acetonitrile solution intermolecular interaction treatment with methanol-acetic acid solution (details unspecified)…”

“…Another popular type of functional material for achieving reusability is molecular imprinted polymers (MIPs). 179,[264][265][266] As introduced in section 3.3, MIPs not only enable selective binding of analytes within complex sample matrices but can also be regenerated through solvent treatment, which make them excellent candidates for constructing reusable SERS substrates for practical applications. For example, Yu, et al designed reusable Fe 3 O 4 @Ag@MIPs nanocomposites for SERS detection of sibutramine illegal additives in oral substances.…”

Surface-Enhanced Raman Sensing of Semi-Volatile Organic Compounds by Plasmonic Nanostructures

“…Therefore, a series of designed strategies for pure noble metal nanostructured materials have been discovered that aim at maximizing enhancement factors, not only enhancement of electromagnetic fields but also amplification of SERS signals. For example, many studies have been recently investigated, including silver nanoparticle (AgNP)-based SERS trace detection of 16 typical polycyclic aromatic hydrocarbons [61], AuNP-based [62] and AgNP-assisted [63,64] SERS rapid determination of bisphenol A (BPA), AuNP arrays-introduced SERS sensitive detection of butyl benzyl phthalate (BBP) [65,66], and silver nanorod-based SERS detection of benzo(a)pyrene (BaP) [67].…”

Recent Developments in Plasmonic Sensors of Phenol and Its Derivatives

“…For example, great efforts have been made toward this goal. AgNP-assisted Raman detection for bisphenol A determination [101] and GNP-induced Raman platforms for methyl parathion detection [102] have been considered.…”

“…AgNPs have been well distributed in the matrix, leading to highly dense hotspots. Therefore, these Raman nanosensors of MIPs@AgNPs exhibit not only highly selective detection of bisphenol A in the presence of various similar molecules such as bisphenol AF and diethylstilbestrol, with an excellent detection limit as low as 5 × 10 −8 M. Raman nanosensors exhibit the potential for practical applications with many benefits of easy fabrication, reusability, selectivity, and sensitive recognition [101].…”