Exploring the potential of electrospun polymer-coated Ag nanofibers for synergistic SERS performance and real-world applications

Review Chemistry, Analytical

Design, Fabrication and Applications of Electrospun Nanofiber-Based Surface-Enhanced Raman Spectroscopy Substrate

Xue Pan et al.

Summary: This review discusses the fabrication methods and applications of SERS substrates based on electrospun nanofibers, and highlights the challenges and prospects.

CRITICAL REVIEWS IN ANALYTICAL CHEMISTRY (2023)

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Article Chemistry, Applied

Flexible 2D nanocellulose-based SERS substrate for pesticide residue detection

Jingjing Wu et al.

Summary: Flexible and high-sensitivity two-dimensional SERS substrates based on self-assembled gold nanoflowers and silver-coated gold nanocubes were successfully developed on nanocrystalline cellulose film. The substrate could sensitively detect pesticide residues on apple surface and showed a linear relationship with pesticide concentration in the range of 10-100 mu g/L.

CARBOHYDRATE POLYMERS (2022)

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Article Chemistry, Analytical

Au nanoparticles decorated ZnO/ZnFe2O4 composite SERS-active substrate for melamine detection

Mohit Tiwari et al.

Summary: The study focuses on using Au-ZZF SERS substrate for identification of R6G and melamine at different concentrations, showing high enhancement factors and sensitivity. Experimental results demonstrate that SERS enhancement is attributed to the electron movement within ZZF and Au nanoparticles.

TALANTA (2022)

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Article Materials Science, Multidisciplinary

Tailored SiO2-TiO2 Aerogel/Ag Flexible Films as Stable SERS Substrates for Hazardous Materials Detection

Wei Liu et al.

Summary: Flexible surface-enhanced Raman spectroscopy (SERS) substrates made of SiO2-TiO2-Ag hybrids aerogel (STAHA) material show excellent stability and reproducibility, making them suitable for long-term sensitive detection of explosives and dyes. The electronic transfer compensation from TiO2 aerogel contributes to the long-term sensitivity of the substrates, providing prospective applications in criminal forensic, military, and security check for trace analyses of hazardous residues.

ADVANCED MATERIALS TECHNOLOGIES (2022)

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Review Polymer Science

Polymer Substrate-Based Transition Metal Modified Electrospun Nanofibrous Materials: Current Trends in Functional Applications and Challenges

Deepika Sharma et al.

Summary: This review explores the applications of metallic nanostructure incorporated composite electrospun mats in high-performance sensors, biomedical, and electrochemical devices, summarizes the influence of various transition metals on the physico-mechanical performance of ENMs, and the fabrication techniques. Moreover, future challenges in the development of ENMs are discussed.

POLYMER REVIEWS (2022)

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Review Chemistry, Multidisciplinary

New Trends in Nanoarchitectured SERS Substrates: Nanospaces, 2D Materials, and Organic Heterostructures

Olga Guselnikova et al.

Summary: This article reviews recent fabrication methods for surface-enhanced Raman spectroscopy (SERS) substrates, focusing on advanced nanoarchitecture based on noble metals, nanolayered 2D materials, and nanoarchitecturing with organic molecules. The use of SERS has been extensively investigated for its enhanced signal intensity and the ability to detect a very small number of molecules. Nanoarchitecture strategies are crucial in the development of SERS substrates. The article discusses recent achievements in the morphology of metallic nanostructures and outlines future directions for reproducible preparation and well-controlled nanoarchitecture. The use of nanolayered 2D materials as an alternative to noble metals and the hybridization with organic molecules to improve stability and selectivity of SERS sensing are also described.

SMALL (2022)

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Article Nanoscience & Nanotechnology

Electrospun Gold Nanoprism/Poly(vinyl alcohol) Nanofibers for Flexible and Free-Standing Surface-Enhanced Raman Scattering Substrates

Alei Dang et al.

Summary: This paper presents a new method for using nanofibers as surface-enhanced Raman scattering (SERS) substrates, which exhibit superior performance in terms of high sensitivity, good uniformity, and stability. The nanofiber substrates can be applied in various fields such as chemical and environmental monitoring, as well as food safety.

ACS APPLIED NANO MATERIALS (2022)

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Article Chemistry, Multidisciplinary

Micropattern of Silver/Polyaniline Core-Shell Nanocomposite Achieved by Maskless Optical Projection Lithography

Rong-Rong Wang et al.

Summary: With the development of device miniaturization, there is a demand for a flexible and fast method to prepare microstructures with desired patterns. In this study, a novel photoreduction-polymerization method is developed for preparing conductive metal-polymer patterns. Ag/polyaniline nanocomposites are synthesized using maskless optical projection lithography technology, which demonstrates the surface-enhanced Raman scattering effect on the microstructures. This preparation method opens up new avenues for the fabrication of micro-nano devices such as sensors and detectors.

NANO LETTERS (2022)

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Article Materials Science, Multidisciplinary

Metal-Organic-Frameworks-Isolated Au Nanobipyramids as Synergetic Surface-Enhanced-Raman-Scattering Substrates

Yang Zhang et al.

Summary: This study reveals the synergetic effect in gold nanobipyramid@zeolitic-imidazolate-framework core-shell nanostructures through SERS measurements, showing the enhanced electric field influence on the charge-transfer process. Additionally, a reorientation phenomenon in the ZIF shell was discovered, which could contribute to the higher intensity.

ACS MATERIALS LETTERS (2022)

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Article Agriculture, Multidisciplinary

Contrastive Study of In Situ Sensing and Swabbing Detection Based on SERS-Active Gold Nanobush-PDMS Hybrid Film

Yi Ma et al.

Summary: A novel noble metal-polymer hybrid film was developed as a SERS substrate for food fungicide analysis, showing promising potential in the fast in situ monitoring of biochemical molecules. The hybrid film demonstrated high sensitivity and elasticity, outperforming traditional swabbing methods in detecting TBZ, carbaryl, and their mixture.

JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY (2021)

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Article Spectroscopy

Spiky yolk-shell AuAg bimetallic nanorods with uniform interior gap for the SERS detection of thiram residues in fruit juice

Jian Zhu et al.

Summary: Spiky yolk-shell AuAg bimetallic nanorods were prepared by galvanic replacement reaction, allowing for SERS detection of thiram. The SERS activity of the nanorods is influenced by the thickness of the silver layer and volume of HAuCl4, with a detection limit of 97 nM for thiram. This makes them promising for pesticide detection applications.

SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY (2021)

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Article Food Science & Technology

Advances in flexible surface-enhanced Raman scattering (SERS) substrates for nondestructive food detection: Fundamentals and recent applications

Daorui Zhang et al.

Summary: Flexible SERS substrates, as a promising technology, have great potential in food safety analysis by providing easy sampling and new possibilities for detecting contaminants on food surfaces.

TRENDS IN FOOD SCIENCE & TECHNOLOGY (2021)

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Article Engineering, Environmental

Emerging core-shell nanostructures for surface-enhanced Raman scattering (SERS) detection of pesticide residues

Ting Wang et al.

Summary: Pesticide residues pose a significant threat to human health and the environment, driving the need for rapid and effective detection methods. Core-shell nanostructures as novel SERS substrates have been widely utilized in rapid pesticide detection research. Understanding and monitoring pesticide residues can be improved through the classification and evaluation of different core-shell nanostructures and early-warning analysis.

CHEMICAL ENGINEERING JOURNAL (2021)

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Review Chemistry, Multidisciplinary

Flexible Surface-Enhanced Raman Scattering Substrates: A Review on Constructions, Applications, and Challenges

Huiqiao Liu et al.

Summary: This review highlights the recent developments of flexible SERS substrates in terms of fabrication methods and applications. It also identifies potential challenges for practical applications and emphasizes the potential value of flexible SERS platforms in various fields.

ADVANCED MATERIALS INTERFACES (2021)

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Article Food Science & Technology

Facile fabrication of three-dimensional gold nanodendrites decorated by silver nanoparticles as hybrid SERS-active substrate for the detection of food contaminants

Yue Sun et al.

Summary: A simple, effective, and reproducible SERS substrate was developed for sensitive detection of melamine and thiram in food samples. The AgNPs decorated AuNDs substrate showed excellent Raman enhancement effect due to high local electromagnetic field enhancement.

FOOD CONTROL (2021)

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Article Spectroscopy

Eliminating irreproducibility in SERS substrates

David-Benjamin Grys et al.

Summary: Irreproducibility in SERS due to substrate variability is a major obstacle, but can be minimized by identifying and reducing sources, facilitating the transition of SERS from the lab to real-world applications.

JOURNAL OF RAMAN SPECTROSCOPY (2021)

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Article Chemistry, Analytical