Article
Physics, Applied
Malik H. Mahmood, Ali Jaafar, Laszlo Himics, Laszlo Peter, Istvan Rigo, Shereen Zangana, Attila Bonyar, Miklos Veres
Summary: A novel platform for surface-enhanced Raman scattering (SERS) was developed by decorating diethylene glycol dimethacrylate microparticles with gold nanoparticles, resulting in significant enhancement of the Raman signal. Near-infrared excitation at 532, 633, and 785 nm exhibited the highest enhancement on the substrate, which also showed excellent temporal stability and spatial uniformity. The practical application potential of this SERS substrate was demonstrated by detecting DNA sequences.
JOURNAL OF PHYSICS D-APPLIED PHYSICS
(2022)
Article
Chemistry, Physical
Lijun You, Baohua Zhong, Ci Huang, Jumei Li, Zhijuan Zheng, Yang Wang
Summary: Au coated magnetic polyphosphazene (MPCTP) composite particles (MPCTP@Au) with sensitive SERS activity were successfully fabricated. MPCTP particles were generated by coating polyphosphazene on Fe3O4 nanoparticles. MPCTP@Au composite particles were obtained by deposition of Au nanoparticles on MPCTP. The magnetic core endowed the composite particles with good magnetic responsiveness, simplifying the sample pretreatment procedure.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2023)
Article
Chemistry, Analytical
Najwan Albarghouthi, Presley MacMillan, Christa L. Brosseau
Summary: This study focused on optimizing SERS sensors constructed using gold nanorod arrays for the sensitive detection of atrazine. The effect of relative humidity on the self-assembly of gold nanorods into arrays was explored, and para-aminothiophenol was used as a SERS probe to assess SERS performance, ultimately highlighting the detection of atrazine. This work is the first to explore relative humidity as an optimization strategy for controlled alignment of gold nanorods for SERS analysis of atrazine.
Article
Optics
Zekun Liao, Xiaofeng Hu, Jiao Chu, Yu Wu, Te Ji, Huachun Zhu, Weiwei Peng, Jie Wang, Hongwei Zhao, Min Chen
Summary: This paper proposes a novel and effective SERS-active substrate based on large-scale 3D Si hierarchical nanoarrays and homogeneous Au nanoparticles. The umbrella-frame structure achieved excellent SERS performance with high sensitivity and spatial uniformity. The proposed substrate can be erased and reused multiple times by plasma cleaning and exhibits excellent recyclability and stability for robust SERS activity.
Article
Spectroscopy
Puspendu Barik, Saptarshi Pal, Manik Pradhan
Summary: A cost-efficient Raman substrate composed of PVP coated gold nanoparticles layer on commercial aluminum foil was successfully fabricated via direct spraying of nanoparticle colloidal solution. The substrate showed a detection limit of 1 nM and a maximum intensity enhancement factor of -24 during SERS for Rhodamine 6G, without any post-treatment. The field enhancement due to reflection from the metallic mirror contributes to the signal enhancement, making it beneficial for routine clinical applications and trace chemical detection.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2021)
Article
Polymer Science
Krzysztof Jerczynski, Julita Muszynska, Gokhan Demirci, Onur Cetinkaya, Paulina Filipczak, Grzegorz Nowaczyk, Jaroslaw Grobelny, Krzysztof Matyjaszewski, Marcin Kozanecki, Joanna Pietrasik
Summary: This work reports on the efficient performance of hybrid particles with silver nanoparticles distributed within single polymer molecules as Surface Enhanced Raman Scattering (SERS) supports. Through controlled synthesis methods and structure parameters of polymer templates, the researchers successfully synthesized hybrid particles with star-like topology and achieved stable detection of analytes at nanomolar level.
Article
Chemistry, Multidisciplinary
Nikiwe Mhlanga, Thabang A. Ntho, Hleko Chauke, Lucky Sikhwivhilu
Summary: Surface-enhanced Raman spectroscopy (SERS) is a technique that enhances conventional Raman signals using surfaces, with potential applications in disease diagnosis and pollutant detection. However, the roughness of SERS substrates has led to irreproducibility issues, limiting real-life applications. Graphene-enhanced Raman spectroscopy (GERS), a two-dimensional alternative, has been proposed to mitigate this problem. Combining SERS and GERS, using graphene doped with plasmonic metallic substrates, has shown significant enhancement, matching the results achieved through electromagnetic and charge transfer mechanisms.
FRONTIERS IN CHEMISTRY
(2022)
Review
Chemistry, Analytical
Angela I. Lopez-LOrente
Summary: Surface enhanced Raman spectroscopy (SERS) is a powerful technique attracting attention, where the use of different gold nanostructures can enhance the SERS response. The shape of nanostructures and nanogaps play a crucial role in SERS efficiency. The creation of flexible supports for SERS substrates is a recent trend in the field.
ANALYTICA CHIMICA ACTA
(2021)
Article
Nanoscience & Nanotechnology
Tianran Wang, Weiye Gao, Chushu Zhu, Pengxing Sha, Yulie Wu, Xuezhong Wu, Peitao Dong
Summary: In this study, Au nanorod arrays (AuNRAs) were developed using two-dimensional (2D) graphene oxide (GO)-supported Au nanoparticles (AuNPs). The coupling performances and Raman performance of AuNRAs-GO/AuNPs were studied, and the optimized substrate achieved sensitivity and repeatability for the detection of melamine.
ACS APPLIED NANO MATERIALS
(2022)
Article
Engineering, Environmental
Nazar Riswana Barveen, Tzyy-Jiann Wang, Yu-Hsu Chang
Summary: This study reports on a method for synthesizing gold nanostars (Au NSs) with clean surfaces using ethanol and a simple photoreduction process. The synthesized Au NSs are applied on poly(methyl methacrylate) (PMMA) films for surface-enhanced Raman spectroscopy (SERS), showing superior detection performance and multiplex detection ability. The transparent and flexible nature of the Au NSs/PMMA SERS substrate allows for in-situ, real-time detection of multiple antibiotics, potentially improving the detection of antibiotics for global food safety issues.
CHEMICAL ENGINEERING JOURNAL
(2022)
Review
Chemistry, Analytical
Kun Ge, Yuling Hu, Gongke Li
Summary: Surface-enhanced Raman spectroscopy (SERS) is a powerful technique used for analysis and sensors. This review focuses on the recent advances in solid SERS substrates, including their fabrication methods, categories, and applications. The solid SERS substrates are preferred due to their dense hot spot, high stability, and controllable morphology. The review provides a detailed introduction to the different categories and construction strategies of solid SERS substrates, and briefly summarizes their typical applications in bio-analysis, food safety analysis, and environmental analysis. Furthermore, the challenges and perspectives of solid SERS substrates are discussed, including improving analytical performance and enhancing large-scale production levels.
Review
Biochemistry & Molecular Biology
Jorge Jimenez-Cisneros, Juan Pablo Galindo-Lazo, Miguel Angel Mendez-Rojas, Jessica Rosaura Campos-Delgado, Monica Cerro-Lopez
Summary: The study focuses on utilizing TiO2 NTs as a solid support for building SERS substrate nanoplatforms to achieve low-cost, reproducibility, high sensibility, and recyclability. TiO2 NTs are easily prepared, able to support metal nanoparticles of different sizes promoting high enhancement factors and reproducibility, and possess self-cleaning property for recyclability. Various methodological strategies have been discussed for achieving high performance SERS substrates based on TiO2 NTs.
Article
Chemistry, Analytical
Yanyan Zhu, Haoran Tang, Hao Wang, Yongxin Li
Summary: Single Ag@AuNWs exhibit high SERS activity and catalytic activity in situ monitoring, serving as a good platform for SERS applications with high sensitivity, stability, and reproducibility.
ANALYTICAL CHEMISTRY
(2021)
Article
Chemistry, Analytical
Deniz Yilmaz, Mustafa Culha
Summary: The study utilized surface-enhanced Raman spectroscopy (SERS) to investigate the endocytosis of gold nanoparticles (AuNPs), revealing the effects of different endocytosis pathways on the internalization of AuNPs by applying specific inhibitors to different cell lines.
Review
Chemistry, Inorganic & Nuclear
Ying Gu, Yonghui Li, Huimin Qiu, Yukun Yang, Qiyue Wu, Xuejing Fan, Yangyue Ding, Lunzhao Yi, Kun Ge, Yizhong Shen
Summary: This review comprehensively examines recent advances in noble-free SERS substrates, including their main categories, fabrication strategies, basic enhancement mechanisms, SERS performance, and representative applications. The challenges and potential avenues for future research and development are also discussed.
COORDINATION CHEMISTRY REVIEWS
(2023)
