Specific detection of acetamiprid with aptamer based on flexible and adhesive SERS membrane

Triangular gold nanoplates/two-dimensional nano mica platelets with a 3D lightning-rod effect as flexible nanohybrid substrates for SERS bacterial detection

“…Surface-enhanced Raman scattering (SERS) is an emerging microdetection technique with very high sensitivity and specificity for analyte molecules at very low concentrations. [1][2][3] This technology has been widely applied in biomedicine, 4 food safety, 5 drug testing, 6 trace chemical analysis, 7 and environmental science. 8 In recent years, the application of SERS spectroscopy to biological detection has attracted increasing attention.…”

Innovative Application of SERS in Food Quality and Safety: A Brief Review of Recent Trends

“…The recognition elements of chemical contaminants and poison include probe molecules, modified substrates, and aptamers. Increasing efforts are expected to focus on developing novel SERS substrates and highly sensitive Raman reporters, including semiconductor nanomaterials and related composites ( Table 2 ) [ 21 , 22 , 23 , 24 ].…”

Nucleic Acid Aptamers for Pesticides, Toxins, and Biomarkers in Agriculture

“…Ag-PCR-M 10 À 8 mol/L [45] diazinon Fluorescent QDs nanobeads and AuNPs 6.7 ng/mL [36] Fluorescent fluorescein amidite (FAM) labeled aptamer 148 nM [48] Fluorescent fluorescein amidite (FAM) labled upconversion nanoparticles (Apt-UCNPs) and graphene oxide (GO) 0.023 ng/mL [49] malathion Fluorescent quantum dots (QDs) nanobeads and AuNPs 0.74 ng/mL [36] Fluorescent CdTe@CdS quantum dots (QDs) 4 pM [51] isocarbophos Fluorescent molecular beacon (MB) 17.2 nM [53] Fluorescent MWCNTs and G-quadruplex 10 nM [55] Colorimetricphosphorescent AuNPs (colorimetric) 7.1 μg/L [56] AuNPs and persistent luminescence nanorods (PLNRs) (phosphorescent) 0.54 μg/L phorate Fluorescent molecular beacon (MB) 19.2 nM [53] atrazine electrochemical Pt NP microwires 10 pM [58] ChemPlusChem such design, 2-aminopurine was attached on the sensor, which exhibited strong fluorescence in ssDNA but quenched in dsDNA form. In their study, an DNA aptamer beacon fuel-8, the optimum beacon (K d = 90.511 � 21.424 nM), was used for chlorpyrifos detection and the LOD was 0.93 ng/mL.…”

“…Zhou et al employed a SERS strategy based on Ag-PCR sealing membranes (PCRÀ M), dubbed as Ag-PCRÀ M, for enhancing the sensitivity of detection for acetamiprid. [45] The detection limit was 10 À 8 mol/L. Other detection methods were also proposed based on AuNP-cDNA nanoprobes or self-assembled MoS 2 /ssDNA nanostructures.…”