Bilayer magnetic-plasmonic satellite nanoassemblies for SERS detection of tobramycin with exonuclease amplification

Zhao, Bianbian; Líu, Hao; Wang, Hao; Zhang, Yuting; Wang, Xiaoli; Zhou, Nandi

doi:10.1016/j.bios.2022.114789

Cited by 17 publications

(4 citation statements)

References 30 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…This property is crucial for creating bilayer or 'sandwich-type' SERS sensors, which are increasingly popular in medical applications due to their high-precision results. [106] An intriguing example of this application is found in the study by Zhao et al (2022). [107] In their research, the team initially created core-satellite type MP nanocomposites by decorating an Fe 3 O 4 core with Au nanoparticles, facilitating magnetic separation.…”

Section: Biological Speciesmentioning

confidence: 99%

“…[106] An intriguing example of this application is found in the study by Zhao et al (2022). [107] In their research, the team initially created core-satellite type MP nanocomposites by decorating an Fe 3 O 4 core with Au nanoparticles, facilitating magnetic separation. The surface of these Au nanoparticles was then functionalized with double-stranded DNA (dsDNA).…”

Section: Biological Speciesmentioning

confidence: 99%

See 1 more Smart Citation

Magnetic–Plasmonic Nanocomposites as Versatile Substrates for Surface–enhanced Raman Scattering (SERS) Spectroscopy

Tiryaki,

Zorlu,

Alvarez‐Puebla

2024

Chemistry A European J

View full text Add to dashboard Cite

Surface‐enhanced Raman scattering (SERS) spectroscopy, a highly sensitive technique for detecting trace‐level analytes, relies on plasmonic substrates. The choice of substrate, its morphology, and the excitation wavelength are crucial in SERS applications. To address advanced SERS requirements, the design and use of efficient nanocomposite substrates have become increasingly important. Notably, magnetic‐plasmonic (MP) nanocomposites, which combine magnetic and plasmonic properties within a single particle system, stand out as promising nanoarchitectures with versatile applications in nanomedicine and SERS spectroscopy. In this review, we present an overview of MP nanocomposite fabrication methods, explore surface functionalization strategies, and evaluate their use in SERS. Our focus is on how different nanocomposite designs, magnetic and plasmonic properties, and surface modifications can significantly influence their SERS‐related characteristics, thereby affecting their performance in specific applications such as separation, environmental monitoring, and biological applications. Reviewing recent studies highlights the multifaceted nature of these materials, which have great potential to transform SERS applications across a range of fields, from medical diagnostics to environmental monitoring. Finally, we discuss the prospects of MP nanocomposites, anticipating favorable developments that will make substantial contributions to various scientific and technological areas.

show abstract

Section: Biological Speciesmentioning

confidence: 99%

Section: Biological Speciesmentioning

confidence: 99%

Magnetic–Plasmonic Nanocomposites as Versatile Substrates for Surface–enhanced Raman Scattering (SERS) Spectroscopy

Tiryaki,

Zorlu,

Alvarez‐Puebla

2024

Chemistry A European J

View full text Add to dashboard Cite

show abstract

“…Antibiotics are widely applied in various fields of food safety, such as poultry production, livestock production, and aquaculture, to protect the production from microorganism infections. However, the antibiotic residues are an important issue for multiple food products, such as meat, milk, fish, and honey [ 160 , 161 , 162 , 163 , 164 ]. The antibiotic residues can enter human bodies through food chains and the bioaccumulation.…”

Section: Design Fabrication and Applications Of Sersmentioning

confidence: 99%

“…Zhao et al prepared the magnetic nanoassemblies, which have both magnetic separation and SERS properties, consisting of a magnetic Fe 3 O 4 core and a bilayer plasmonic shell of AuNP and Au nanostars (AuNS). The magnetic nanoassemblies have multiple hot spots between adjacent AuNP, AuNP–AuNS, and the tips of AuNS that lead to high sensitivity for detecting the tobramycin in milk and honey at the low concentration of 50 fg/mL [ 163 ]. Yu et al decorated the AgNPs on the two-dimensional nanomaterial Ti 3 C 2 Tx with single-stranded DNA (ssDNA) as guiding templates, which can protect the AgNPs from aggregation and improve the stability of the substrate to perform a Ti 3 C 2 Tx/NA/Ag membrane substrate.…”

Section: Design Fabrication and Applications Of Sersmentioning

confidence: 99%

Design, Fabrication, and Applications of SERS Substrates for Food Safety Detection: Review

Lin

et al. 2023

Micromachines

View full text Add to dashboard Cite

Sustainable and safe food is an important issue worldwide, and it depends on cost-effective analysis tools with good sensitivity and reality. However, traditional standard chemical methods of food safety detection, such as high-performance liquid chromatography (HPLC), gas chromatography (GC), and tandem mass spectrometry (MS), have the disadvantages of high cost and long testing time. Those disadvantages have prevented people from obtaining sufficient risk information to confirm the safety of their products. In addition, food safety testing, such as the bioassay method, often results in false positives or false negatives due to little rigor preprocessing of samples. So far, food safety analysis currently relies on the enzyme-linked immunosorbent assay (ELISA), polymerase chain reaction (PCR), HPLC, GC, UV-visible spectrophotometry, and MS, all of which require significant time to train qualified food safety testing laboratory operators. These factors have hindered the development of rapid food safety monitoring systems, especially in remote areas or areas with a relative lack of testing resources. Surface-enhanced Raman spectroscopy (SERS) has emerged as one of the tools of choice for food safety testing that can overcome these dilemmas over the past decades. SERS offers advantages over chromatographic mass spectrometry analysis due to its portability, non-destructive nature, and lower cost implications. However, as it currently stands, Raman spectroscopy is a supplemental tool in chemical analysis, reinforcing and enhancing the completeness and coverage of the food safety analysis system. SERS combines portability with non-destructive and cheaper detection costs to gain an advantage over chromatographic mass spectrometry analysis. SERS has encountered many challenges in moving toward regulatory applications in food safety, such as quantitative accuracy, poor reproducibility, and instability of large molecule detection. As a result, the reality of SERS, as a screening tool for regulatory announcements worldwide, is still uncommon. In this review article, we have compiled the current designs and fabrications of SERS substrates for food safety detection to unify all the requirements and the opportunities to overcome these challenges. This review is expected to improve the interest in the sensing field of SERS and facilitate the SERS applications in food safety detection in the future.

show abstract

Advances in signal amplification strategies applied in pathogenic bacteria apta-sensing analysis—A review

Liu,

Dou,

Vriesekoop

et al. 2024

Analytica Chimica Acta

View full text Add to dashboard Cite

Bilayer magnetic-plasmonic satellite nanoassemblies for SERS detection of tobramycin with exonuclease amplification

Cited by 17 publications

References 30 publications

Magnetic–Plasmonic Nanocomposites as Versatile Substrates for Surface–enhanced Raman Scattering (SERS) Spectroscopy

Magnetic–Plasmonic Nanocomposites as Versatile Substrates for Surface–enhanced Raman Scattering (SERS) Spectroscopy

Design, Fabrication, and Applications of SERS Substrates for Food Safety Detection: Review

Advances in signal amplification strategies applied in pathogenic bacteria apta-sensing analysis—A review

Contact Info

Product

Resources

About