Au@Ag-TGANPs based SERS for facile screening of thiabendazole and ferbam in liquid milk

Study the impact of ultra-sonication and pulsed electric field on the quality of wheat plantlet juice through FTIR and SERS

“…AuNPs are easy to prepare and have proved promising in enhancing Raman signal up to many folds by chemical and physical processes. Chemical enrichment is the enhancement of signal due to charge transfer between nanosubstrates and analyses (enhances up to 10 2 times) whereas, the physical effect is due to option properties of nanoparticles which contributes to improving signals up to 10 12 folds [23] , [24] .…”

“…Synthesis of AuNPs was conducted by employing the protocol adopted by Hussain, Pu, Hu and Sun [24] . Briefly, one milliliter of HAuCl 4 ·4H 2 O (5 g/L solutions) was first poured in a flask (150 vol) containing 60 mL of ultrapure water with continuous shaking at 900 rpm with a digital shaker (MS 3, IKA Inc., Staufen im Breisgau, Germany).…”

Detection of Bioactive Metabolites in Escherichia Coli Cultures Using Surface-Enhanced Raman Spectroscopy

“…Citrate stabilized gold nanoparticles were prepared based on the method previously reported by Hussain and team. 36 In brief, 1 mL of HAuCl 4 .3H 2 O (5 g/L) was added into 60 mL of boiling deionized water, followed by the addition of 700 µL of trisodium citrate (1%) under vigorous stirring by a magnetic stirrer (MS7-H550-Pro, DLAB Scientific Co., Ltd., Beijing, China). The mixture was allowed to stir for 15 min for the formation of gold nanoparticles as indicated by the change of color to wine red, which was then stored at 4 °C until further analysis.…”

Novel extraction, rapid assessment and bioavailability improvement of quercetin: A review

“…By employing substrates, chemical and physical mechanisms can occur to boost the Raman signals. The chemical process occurs due to charge transfer between a sample and nano substrate while, amplification of signals due to optical attributes of NPs is a physical process [70] , [71] . The stable nanomaterial makes SERS an ultra-sensitive tool for numerous food and non-food detections.…”