Development of jellyfish-like ZnO@Ag substrate for sensitive SERS detection of melamine in milk

Huang, Chunlei; Jiang, Shaoping; Kou, Fangxia; Guo, Minting; Li, Shuang; Yu, Genjian; Zheng, Biao; Xie, Fengyan; Zhang, Cheng; Hou, Yu; Wang, Jun

doi:10.1016/j.apsusc.2022.154153

Cited by 16 publications

(5 citation statements)

References 51 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Our SERS substrate with EF of 1.85 × 10 10 is much more sensitive than that of the Huang group. 9 Caiqin Han et al prepared the SERS-active silver nanorod (Ag NR) array substrates to detect MNZ with a LOD of 10 μg mL −1 (10 ppm). 37 The LOD of the SERS substrate with the combination of multilayer graphene and gold nanoparticles used to detect the MNZ of Sandra Benítez-Martínez et al is 1.1 mg L −1 (1.1 ppm).…”

Section: Resultsmentioning

confidence: 99%

“…This is because these platforms not only support CT between the SERS substrate and the absorbed molecules but also direct nanostructure morphologies on which the noble metal is located. Consequently, it is very effective to achieve a highly sensitive SERS substrate made from the combination of noble metals and semiconductor nanostructures, such as the combination of Ag NPs, or Au NPs with ZnO, 6–11 AZO, 12 TiO 2 , 13,14 Al 2 O 3 , 15,16 Cu 2 ZnSnS 4, 17 Si, 18 Cu 2 O, 19 Fe 3 O 4 , 20 ZnO–CuO 21 … and recently, the 2D materials such as MoS 2 , 22 graphene. 23–25 The morphology of ZnO nanomaterials could be easily controlled for nanorods, nanowires, nanoneedles, and nanotubes.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Increasing charge transfer of SERS by the combination of amorphous Al₂O₃–Al thin film and ZnO nanorods decorated with Ag nanoparticles for trace detection of metronidazole

et al. 2023

View full text Add to dashboard Cite

show abstract

Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Increasing charge transfer of SERS by the combination of amorphous Al₂O₃–Al thin film and ZnO nanorods decorated with Ag nanoparticles for trace detection of metronidazole

et al. 2023

View full text Add to dashboard Cite

show abstract

“…The notorious "toxic infant formula" scandal was a major food safety incident that attracted remarkable public attention. Thus, a need for the development of simple, rapid, and highly sensitive technology for the detection of melamine in food arose [1][2][3][4] . The present "gold standard" for analyzing samples for melamine content are mainly based on column chromatography [5], including high-performance liquid chromatography (HPLC) [6], liquid chromatography-mass spectrometry [7], and gas chromatography-mass spectrometry [8].…”

Section: Introductionmentioning

confidence: 99%

Facile SERS screening of melamine in bovine milk with 2D printed AgNPs/glass fabric filter paper as the flexible substrate

Wang,

Zhao,

Wei

et al. 2024

Food Science and Human Wellness

View full text Add to dashboard Cite

Melamine is one of the most frequently detected adulterants in dairy products. The current study proposes a surface-enhanced Raman spectroscopy (SERS)-based analytical tool for fast and reliable screening of melamine in bovine milk. A hand-held Raman spectrometer was used in conjunction with a substrate composed of silver nanoparticles (AgNPs) that was 2D printed onto glass fiber (GF) filter paper. Under optimized conditions, a sensitive and fingerprint-like signal at 674 cm -1 was obtained. The AgNPs/GF substrate exhibited high sensitivity to melamine in milk down to 1.9498 × 10 -5 mg/mL, which is well below the USA and EU safety limits (2.5 × 10 -3 mg/mL). Remarkably, the proposed technology was also highly reproducible, showing spot-to-spot and block-to-block variations below 3.3% and 4.9% at 674 cm -1 in Raman intensity, respectively. The characteristic peak intensity and concentration of melamine showed an acceptable linear relationship (R 2 = 0.9909) within the range of 0.0001-1 mg/mL. Overall, the method established in this study can provide an efficient and effective method for the quantitative target screening and detection of melamine in dairy products.

show abstract

“…In addition to this example, Barveen et al made a SERS-active substrate for the ultrasensitive detection of a popular antibiotic, chloramphenicol (CAP) by fabricating the heterogeneous integration of silver nanoparticles (Ag NPs) on silver vanadate nanorods (β-AgVO 3 NRs) . In addition, many studies indicate that the combination of noble metals and semiconductor nanostructures will enhance the SERS signal. ,− That is because, first, the semiconductor is easy to control the surface morphology where the metal NPs are attached to make good “hot spots”, thereby increasing the signal by the EM. Second, it supports the charge-transfer process between organic molecules and the substrate of the SERS substrate by the CE.…”

Section: Introductionmentioning

confidence: 99%

Optimizing the Structure of Zinc Oxide Thin Films and Silver Nanoparticles for Preparing High-Performance and Stability SERS Substrate to Detect Banned Antibiotics in Aquaculture

Minh

Nguyen

Doan

et al. 2023

ACS Appl. Opt. Mater.

View full text Add to dashboard Cite

In this paper, we study the effects of the structure, defects, and surface morphology of zinc oxide thin films on the enhancement of the Raman signal of organic molecules. The SERS substrates of Ag/ZnO thin film with low cost, stability, and high sensitivity are prepared to detect the rhodamine 6G (R6G) reagent and metronidazole (MNZ) standard. Zinc oxide (ZnO) thin films are produced by a simple and low-cost sol−gel dip-coating method. The films are dip-coated and heated at 250 °C for 45 min. The deposition process is repeated from 1 to 6 times to obtain ZnO films with various thicknesses. Following that, ZnO films are annealed at 500 °C for different duration from 30 to 150 min to obtain a good structure and porous surface which enhance the incident light scattering for SERS. The effects of different film thicknesses and annealing times on the surface morphology, structure, defects, and optical properties of ZnO thin films are investigated by field-emission scanning electron microscopy, Raman spectroscopy, ultraviolet−visible spectroscopy, and reflectance spectroscopy. The results indicate that the films with 6 layers and annealed in 120 min show the best behavior in crystallinity and surface roughness. Finally, silver nanoparticles (Ag NPs) are deposited onto the ZnO films with different sputtering times by the DC magnetron sputtering method to form the active SERS substrates. The optimal SERS sample of Ag (10 s)/ZnO (6 layers, 500 °C, 120 min) is highly sensitive, stable, and has spectral reproducibility. The SERS substrate detects R6G solution at a limit of detection (LOD) of 10 −14 M, an enhancement factor (EF) of 2.62 × 10 13 , and detects MNZ solution with a LOD of 0.01 ppm and EF of 3.30 × 10 6 . It is very stable for at least 6 months as stored away from moisture and light and has a high spectral reproducibility with the RSD of the method in three Ag/ZnO samples of 10.70, 7.34, and 10.44%.

show abstract

Development of jellyfish-like ZnO@Ag substrate for sensitive SERS detection of melamine in milk

Cited by 16 publications

References 51 publications

Increasing charge transfer of SERS by the combination of amorphous Al₂O₃–Al thin film and ZnO nanorods decorated with Ag nanoparticles for trace detection of metronidazole

Increasing charge transfer of SERS by the combination of amorphous Al₂O₃–Al thin film and ZnO nanorods decorated with Ag nanoparticles for trace detection of metronidazole

Facile SERS screening of melamine in bovine milk with 2D printed AgNPs/glass fabric filter paper as the flexible substrate

Optimizing the Structure of Zinc Oxide Thin Films and Silver Nanoparticles for Preparing High-Performance and Stability SERS Substrate to Detect Banned Antibiotics in Aquaculture

Contact Info

Product

Resources

About

Development of jellyfish-like ZnO@Ag substrate for sensitive SERS detection of melamine in milk

Cited by 16 publications

References 51 publications

Increasing charge transfer of SERS by the combination of amorphous Al2O3–Al thin film and ZnO nanorods decorated with Ag nanoparticles for trace detection of metronidazole

Increasing charge transfer of SERS by the combination of amorphous Al2O3–Al thin film and ZnO nanorods decorated with Ag nanoparticles for trace detection of metronidazole

Facile SERS screening of melamine in bovine milk with 2D printed AgNPs/glass fabric filter paper as the flexible substrate

Optimizing the Structure of Zinc Oxide Thin Films and Silver Nanoparticles for Preparing High-Performance and Stability SERS Substrate to Detect Banned Antibiotics in Aquaculture

Contact Info

Product

Resources

About

Increasing charge transfer of SERS by the combination of amorphous Al₂O₃–Al thin film and ZnO nanorods decorated with Ag nanoparticles for trace detection of metronidazole

Increasing charge transfer of SERS by the combination of amorphous Al₂O₃–Al thin film and ZnO nanorods decorated with Ag nanoparticles for trace detection of metronidazole