Article
Chemistry, Analytical
Menbere Leul Mekonnen, Yitayal Admassu Workie, Wei-Nien Su, Bing Joe Hwang
Summary: This review discusses the fabrication of low-cost, flexible SERS substrates using paper, highlighting its advantages and methods. It evaluates the pros and cons of different fabrication methods, and explores ways to improve substrate performance and obtain additional analytical functionalities. Finally, it also suggests opportunities and challenges in realizing a low-cost commercial plasmonic paper substrate.
SENSORS AND ACTUATORS B-CHEMICAL
(2021)
Review
Environmental Sciences
Sintayehu Leshe Kitaw, Yihenew Simegniew Birhan, Hsieh-Chih Tsai
Summary: Surface-enhanced Raman scattering spectroscopy (SERS) is a powerful vibrational spectroscopy technique that utilizes the inelastic scattering of photons by molecules. It has unique properties such as ultra-sensitivity, selectivity, non-destructivity, speed, and fingerprinting properties, making it widely used in sample analysis and plasmonic mechanistic studies. However, the high cost and low reproducibility of SERS signals limit its practical applications. The development of multifunctional, stable, and reusable nano-engineered SERS substrates provides a feasible solution to overcome these limitations.
ENVIRONMENTAL RESEARCH
(2023)
Article
Nanoscience & Nanotechnology
L. M. Jagathpriya, Jayakumar Pillanagrovi, Shourya Dutta-Gupta
Summary: Surface-enhanced Raman spectroscopy (SERS) has been effectively used in biosensing applications by enhancing the coupling of light into plasmonic nanostructures. In this study, cavity-coupled structures are demonstrated to improve SERS performance by enhancing the light-matter interaction. The fabricated substrates show nearly a 9 times improvement in SERS enhancement compared to uncoupled substrates, and the cavity-coupling approach can also enhance other plasmonic phenomena.
Article
Biochemistry & Molecular Biology
Ashutosh Mukherjee, Quan Liu, Frank Wackenhut, Fang Dai, Monika Fleischer, Pierre-Michel Adam, Alfred J. Meixner, Marc Brecht
Summary: Researchers have developed a facile method of fabricating a non-uniform SERS substrate using an annealed thin gold film. This substrate offers multiple resonances and gap sizes within the same sample, and shows reproducible trends in terms of geometry and plasmonic response. It can be used for fast screening of analytes due to the lateral variation of the resonances within the same sample.
Article
Chemistry, Physical
V. S. Vendamani, Reshma Beeram, Venugopal Rao Soma
Summary: We have developed hybrid SERS-active substrates for ultra-sensitive detection of various analyte molecules, such as explosives, dyes, and bio-proteins. The substrates consist of vertically aligned Si nanowires decorated with Ag and Au nanoparticles, and encapsulated with MoS2 nano-sheets. The hybrid substrates exhibit superior detection capabilities and excellent signal reproducibility with low limits of detection for different analytes.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Review
Chemistry, Analytical
Ding-Yan Lin, Chung-Yu Yu, Chin-An Ku, Chen-Kuei Chung
Summary: Sustainable and safe food is a global concern, but traditional chemical methods of food safety testing have drawbacks such as high cost and long testing time. Current food safety analysis relies on various methods that require extensive training. Surface-enhanced Raman spectroscopy (SERS) has emerged as a promising tool for food safety testing, offering portability, non-destructiveness, and lower cost.
Article
Chemistry, Physical
Anindita Das, Udit Pant, Cuong Cao, Rakesh S. Moirangthem, Hitesh Bhanudas Kamble
Summary: The proposed work aims to develop a sensitive surface-enhanced Raman spectroscopy (SERS) nano-biosensor using gold-coated polymer nanopyramid arrays as the SERS substrate. The study also investigates the Raman signal enhancement mechanism through electromagnetic simulation and evaluates the potential of the fabricated nanopyramid arrays for low-cost, large scale detection of hazardous compounds at ultra-low concentrations.
Article
Nanoscience & Nanotechnology
P. Christian Simo, Florian Laible, Anke Horneber, Claus J. Burkhardt, Monika Fleischer
Summary: Pyramidal gold nanostructures in surface-enhanced Raman spectroscopy (SERS) enhance the signal of Raman active analytes, and a cost-effective lithography technique is used to fabricate 2D hexagonal arrays of pyramidal nanostructures with a quadratic base.
Article
Optics
Lingmao Xu, Huagang Liu, Tze Chong Chua, Minghui Hong, Hui Zhou
Summary: This work presents the development and optimization of a SERS substrate fabricated by femtosecond laser induced plasma assisted ablation (fs LIPAA) for rapid and sensitive detection of food contaminants. The substrate, decorated with a layer of silver film, creates hotspots with high uniformity, resulting in improved SERS performance. The proposed Ag NPs/glass SERS substrate shows great potential in detecting melamine in milk liquid and ciprofloxacin in water, with detection limits of 1 ppm for both contaminants.
OPTICS AND LASER TECHNOLOGY
(2022)
Article
Engineering, Biomedical
J. M. Romo-Herrera, K. Juarez-Moreno, L. Guerrini, Y. Kang, N. Feliu, W. J. Parak, R. A. Alvarez-Puebla
Summary: Paper as a scaffold material meets key requirements for cell culture applications and can mimic cellular micro-environment. Integration of plasmonic nanomaterials allows the generation of multifunctional scaffolds for monitoring different cell cues. Paper-based plasmonic substrates in combination with SERS optical detection represent a powerful future platform for monitoring cell cues during cell culture processes.
MATERIALS TODAY BIO
(2021)
Article
Chemistry, Physical
Haitao Li, Hui Yin, Han Dai, Hiang Kwee Lee, Yanying Cui, Fuwei Sun, Yihe Zhang, Qi An
Summary: The research develops an electrically enhanced, composite SERS substrate by combining flower-like Ag nanostructures with a piezoelectric-dielectric polymeric film, aiming to improve the quality of SERS spectra and obtain richer molecular information. This design achieves dual-enhanced SERS effects in both intensity and the number of vibration peaks, which shows high applicability in rapid and on-site detection of real samples.
Article
Nanoscience & Nanotechnology
Wonil Nam, Junyeob Song, Seied Ali Safiabadi Tali, Henri J. Lezec, Amit Agrawal, Wei Zhou
Summary: The study introduces a tapered-shape nanolaminate plasmonic nanoantenna (TNLNA) platform that supports multiple, spatially overlapped, hybridized magnetoelectric localized surface plasmon modes, revealing high SERS EFs (>10(7)) and insensitivity to background RI variations (between 1.30 and 1.60). Additionally, it demonstrates that uniform arrays of TNLNAs can be manufactured on flexible transparent polymer films for backside-excitable and reversible SERS measurements, enabling in situ label-free glucose monitoring on a skin phantom.
ACS APPLIED NANO MATERIALS
(2021)
Article
Chemistry, Analytical
Andra-Sorina Tatar, Sanda Boca, Alexandra Falamas, Denisa Cuibus, Cosmin Farcau
Summary: In this study, high-density gold nanostar films were fabricated through self-assembly on polystyrene plates, and their use as solid plasmonic substrates for surface-enhanced optical spectroscopies was explored. The films demonstrated dual-mode surface-enhanced fluorescence and surface-enhanced Raman scattering effects under visible and NIR laser excitation. The experimental results were supported by theoretical modelling, and the potential application of these substrates in the detection of biologically relevant molecules was demonstrated.
Article
Environmental Sciences
Wenlong Liao, Li Zheng, Juan Hao, Lijuan Huang, Qinghui Wang, Zhihang Yin, Ting Qi, Lingpu Jia, Kunping Liu
Summary: A multifunctional magnetic plasmonic photocatalyst was prepared through a green and efficient process. It consisted of magnetic mesoporous anatase titanium dioxide (Fe3O4@mTiO2), Ag nanoparticles (Ag NPs), and graphene oxide (GO). The catalyst showed adsorption, surface-enhanced Raman spectroscopy (SERS) monitoring, and photodegradation capabilities for fluoroquinolone antibiotics (FQs). The catalyst exhibited improved degradation rates and recyclability compared to other materials, making it a potential solution for the removal and monitoring of residual FQs in environmental water.
Article
Chemistry, Analytical
Sijia Liu, Jiaqi Guo, Juan-P Hinestroza, Xianming Kong, Qian Yu
Summary: A simple method for fabricating plasmonic absorbent cotton fibers dyeing with Ag NPs was reported. The Ag NPs were densely immobilized on the cotton surface, providing additional enhancement sensitivity in SERS sensing. The plasmonic cotton-Ag SERS substrate showed multiplex sensing capability for identifying pesticides from their mixture.
MICROCHEMICAL JOURNAL
(2021)