Advanced Nanomaterials for LSPR and SERS Applications

A special issue of Nanomaterials (ISSN 2079-4991). This special issue belongs to the section "Nanophotonics Materials and Devices".

Deadline for manuscript submissions: closed (31 May 2023) | Viewed by 3835

Special Issue Editors


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Guest Editor
Institute of Biophotonics, National Yang Ming Chiao Tung University, Taipei 112, Taiwan
Interests: SERS; LSPR; optofluidics; biosensor; nanomanipulation

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Guest Editor
Department of Electrical Engineering, National Taiwan University, Taipei 106, Taiwan
Interests: Bio-MEMS; optical-MEMS; microfluidics; biosensing; cell manipulation in microenvironment; micro/nano fabrication techniques
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Special Issue Information

Dear Colleagues,

Surface-enhanced Raman spectroscopy (SERS) and localized surface plasmon resonance (LSPR) have both been used to provide highly sensitive detection of molecules. Like surface plasmon resonance (SPR) sensors, LSPR sensors, which are usually based on metallic nanoparticles or nanostructured substrates, detect molecular binding based on changes in refractive index. On the other hand, SERS is a technique that can provide spectral fingerprint of molecules and can thus be used to identify molecules. The enhancement effects of SERS substrates mainly come form the LSPR effects of metallic nanoparticles or nanostructures. Therefore, nanomaterials play important roles in both LSPR and SERS detection of molecules. The plasmonic properties, the surface properties, the morphologies, and the arrangement of nanomaterials can all affect the sensitivity and the reproducibility of the detection results. The LSPR effect of metallic nanoparticles is highly dependent on the size, the shape, and the material of nanoparticles. The surface properties of nanoparticles can affect the functionalization of nanoparticles, the storage stability, the nonspecific binding, the molecular adsorption, and the biocompatibility. A variety of metallic nanomaterials have been synthesized and fabricated for LSPR and SERS applications, and other nanomaterials such as graphene and carbon nanotubes have also been used in these applications to improve the detection performance. It should be noted that in addition to the synthesis of nanomaterials, the arrangement and the functionalization of nanomaterials can also have a significant impact on detection.

This Special Issue focuses on the recent progress in the design and application of nanomaterials for LSPR and SERS applications. Potential topics include, but are not limited to, the following:

  • Nanomaterials that can be used as SERS and LSPR substrates;
  • Nanomaterials that can be used to enhance the detection performance (sensitivity, specificity, etc.) of LSPR and SERS sensors;
  • Nanomaterials that can be used for sample preparation in LSPR and SERS applications;
  • Nanomaterials that can be used as Raman nanoprobes;
  • Nanomaterials that can be used to capture target molecules for LSPR and SERS sensing;
  • Synthesis, assembly, and functionalization of nanomaterials for SERS and LSPR applications.

We are pleased to invite the community to submit manuscripts to be considered for publication in this Special Issue of Nanomaterials. Original research papers, both experimental and theoretical, and review articles are welcome. We look forward to your participation.

Dr. Yih-Fan Chen
Dr. Nien-Tsu Huang
Guest Editors

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Keywords

  • nanomaterial synthesis and application
  • assembly and functionalization of nanomaterials
  • surface-enhanced raman spectroscopy (SERS)
  • localized surface plasmon resonance (LSPR)
  • plasmonics
  • nanoparticles, nanocomposites, and nanostructures
  • graphene
  • carbon nanotubes
  • chemical sensors

Published Papers (3 papers)

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Research

12 pages, 4415 KiB  
Article
LSP-SPP Coupling Structure Based on Three-Dimensional Patterned Sapphire Substrate for Surface Enhanced Raman Scattering Sensing
by Shuqi Xie, Haipeng Si, Cong Liu, Weihao Liu, Muhammad Shafi, Shouzhen Jiang and Weiwei Yue
Nanomaterials 2023, 13(9), 1518; https://0-doi-org.brum.beds.ac.uk/10.3390/nano13091518 - 29 Apr 2023
Cited by 4 | Viewed by 1367
Abstract
Although the fabrication of controllable three-dimensional (3D) microstructures on substrates has been proposed as an effective solution for SERS, there remains a gap in the detection and manufacturability of 3D substrates with high performance. In this study, photolithography is adopted to obtain a [...] Read more.
Although the fabrication of controllable three-dimensional (3D) microstructures on substrates has been proposed as an effective solution for SERS, there remains a gap in the detection and manufacturability of 3D substrates with high performance. In this study, photolithography is adopted to obtain a pyramid-like array on a patterned sapphire substrate (PSS), with Al2O3 as the dielectric layer. In addition, silver nanoparticles (AgNPs) are used to decorate Au films to obtain mass-producible 3D SRES substrates. In the case of low fluorescence, the substrate realizes the coupling of localized surface plasmon polaritons (LSPs) and surface plasmon polaritons (SPPs), which is consistent with the simulation results obtained using the finite element method. The performance of the SERS substrate is evaluated using rhodamine 6G (R6G) and toluidine blue (TB) as probe molecules with detection limits of 10−11 M and 10−9 M, respectively. The substrate exhibits high hydrophobicity and excellent light-capturing capability. Moreover, it shows self-cleaning ability and long-term stability in practical applications. Allowing for the consistency of the composite substrate in the preparation process and the high reproducibility of the test results, it is considered to be promising for mass production. Full article
(This article belongs to the Special Issue Advanced Nanomaterials for LSPR and SERS Applications)
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14 pages, 33486 KiB  
Article
Multifunctional Plasmon-Tunable Au Nanostars and Their Applications in Highly Efficient Photothermal Inactivation and Ultra-Sensitive SERS Detection
by Tianxiang Zhou, Jie Huang, Wenshi Zhao, Rui Guo, Sicheng Cui, Yuqing Li, Xiaolong Zhang, Yang Liu and Qi Zhang
Nanomaterials 2022, 12(23), 4232; https://0-doi-org.brum.beds.ac.uk/10.3390/nano12234232 - 28 Nov 2022
Cited by 7 | Viewed by 1570
Abstract
The development and application in different fields of multifunctional plasmonic nanoparticles (NPs) have always been research hotspots. Herein, multi-tip Au nanostars (NSs) with an anisotropic structure were fabricated for the photothermal therapy (PTT) of bacteria and surface-enhanced Raman scattering (SERS) detection of pollutants. [...] Read more.
The development and application in different fields of multifunctional plasmonic nanoparticles (NPs) have always been research hotspots. Herein, multi-tip Au nanostars (NSs) with an anisotropic structure were fabricated for the photothermal therapy (PTT) of bacteria and surface-enhanced Raman scattering (SERS) detection of pollutants. The size and localized surface plasmon resonance (LSPR) characteristics of Au NSs were adjusted by varying Au seed additions. In addition, photothermal conversion performance of Au NSs with various Au seed additions was evaluated. Photothermal conversion efficiency of Au NSs with optimal Au seed additions (50 μL) was as high as 28.75% under 808 nm laser irradiation, and the heat generated was sufficient to kill Staphylococcus aureus (S. aureus). Importantly, Au NSs also exhibited excellent SERS activity for the 4-mercaptobenzoic acid (4-MBA) probe molecule, and the local electromagnetic field distribution of Au NSs was explored through finite-difference time-domain (FDTD) simulation. As verified by experiments, Au NSs’ SERS substrate could achieve a highly sensitive detection of a low concentration of potentially toxic pollutants such as methylene blue (MB) and bilirubin (BR). This work demonstrates a promising multifunctional nanoplatform with great potential for efficient photothermal inactivation and ultra-sensitive SERS detection. Full article
(This article belongs to the Special Issue Advanced Nanomaterials for LSPR and SERS Applications)
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12 pages, 3919 KiB  
Article
Lithographic SERS Aptasensor for Ultrasensitive Detection of SARS-CoV-2 in Biological Fluids
by Vladimir Kukushkin, Oganes Ambartsumyan, Anna Astrakhantseva, Vladimir Gushchin, Alexandra Nikonova, Anastasia Dorofeeva, Vitaly Zverev, Alexandra Gambaryan, Daria Tikhonova, Timofei Sovetnikov, Assel Akhmetova, Igor Yaminsky and Elena Zavyalova
Nanomaterials 2022, 12(21), 3854; https://0-doi-org.brum.beds.ac.uk/10.3390/nano12213854 - 01 Nov 2022
Cited by 3 | Viewed by 1768
Abstract
In this paper, we propose a technology for the rapid and sensitive detection of the whole viral particles of SARS-CoV-2 using double-labeled DNA aptamers as recognition elements together with the SERS method for detecting the optical response. We report on the development of [...] Read more.
In this paper, we propose a technology for the rapid and sensitive detection of the whole viral particles of SARS-CoV-2 using double-labeled DNA aptamers as recognition elements together with the SERS method for detecting the optical response. We report on the development of a SERS-aptasensor based on a reproducible lithographic SERS substrate, featuring the combination of high speed, specificity, and ultrasensitive quantitative detection of SARS-CoV-2 virions. The sensor makes it possible to identify SARS-CoV-2 in very low concentrations (the limit of detection was 100 copies/mL), demonstrating a sensitivity level comparable to the existing diagnostic golden standard—the reverse transcription polymerase chain reaction. Full article
(This article belongs to the Special Issue Advanced Nanomaterials for LSPR and SERS Applications)
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