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Special Issue "2D Material Based Plasmonic Biosensors"

A special issue of Sensors (ISSN 1424-8220). This special issue belongs to the section "Sensor Materials".

Deadline for manuscript submissions: closed (30 December 2020).

Special Issue Editor

Dr. Shuwen Zeng
E-Mail Website
Guest Editor
French National Centre for Scientific Research (CNRS), XLIM Research Institute, 123 Avenue Albert Thomas, 87060 Limoges, France
Interests: plasmonic; sensor; biosensor; chalcogenide; photonics
Special Issues and Collections in MDPI journals

Special Issue Information

Optical sensors are useful tools for detecting various target molecules with high sensitivity and selectivity even in complex sample matrix (e.g., saliva, serum, urine). As one of the leading optical sensing technologies, surface plasmon resonance sensors are well known for real time screening and monitoring analyte interactions. In recent years, the development of the fabrication and integration of nanostructures has boomed the design of the Surface Plasmon Resonance (SPR) sensors in a more effective and miniature way. Novel SPR sensors with different nanostructures—either as sensing substrate-like 2D materials (e.g., graphene) or signal amplification tags like gold nanoparticles—were reported. They have been demonstrated for applications including food and environment monitoring, clinical diagnostics/therapy, and homeland security protection. This Special Issue of Sensors will be dedicated to highlighting these emerging uses of SPR sensors, and presenting the latest technologies and methodologies developed in this interdisciplinary field of science. Topics include, but are not limited to, the following:

  • Optical design and systems for SPR sensing
  • Point-of-care SPR biosensors for theranostics
  • Theoretical analysis of physics and chemistry for SPR sensing
  • Proof-of-concept of sensing applications based on SPR
  • Case studies and data fusion of novel SPR sensors

Both reviews and original research papers are welcome.

Dr. Shuwen Zeng
Guest Editor

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All papers will be peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Sensors is an international peer-reviewed open access semimonthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2200 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • 2D materials;
  • optical sensor;
  • chemosensor;
  • fiber biosensor;
  • sensor network;
  • localized SPR sensing;
  • signal amplification;
  • surface chemistry;
  • plasmonic enhanced fluorescence;
  • heavy metal ions sensing
  • two-dimensional materials;
  • graphene
  • surface plasmon resonance

Published Papers (4 papers)

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Article
An Integrated Detection Based on a Multi-Parameter Plasmonic Optical Fiber Sensor
Sensors 2021, 21(3), 803; https://doi.org/10.3390/s21030803 - 26 Jan 2021
Cited by 1 | Viewed by 593
Abstract
In this paper, a multi-parameter integrated detection photonic crystal fiber (PCF) sensor based on surface plasmon resonance (SPR) is proposed for its application in detecting temperature, magnetic field, and refractive index. The air holes on both sides of the fiber core were coated [...] Read more.
In this paper, a multi-parameter integrated detection photonic crystal fiber (PCF) sensor based on surface plasmon resonance (SPR) is proposed for its application in detecting temperature, magnetic field, and refractive index. The air holes on both sides of the fiber core were coated with gold film and introduced to the temperature-sensitive medium (PDMS) and magnetic fluid (MF), detecting temperature and magnetic field, respectively. The graphene layer is also presented on the gold film of the D-type side polished surface to improve the sensor sensitivity. The sensor’s critical parameters’ influence on its performance is investigated using a mode solver based on the finite element method (FEM). Simulation results show when the samples refractive index (RI) detection is a range of 1.36~1.43, magnetic field detection is a range of 20~550 Oe, and the temperature detection is a range of 5~55 °C; the maximum sensor’s sensitivity obtains 76,000 nm/RIU, magnetic field intensity sensitivity produces 164.06 pm/Oe, and temperature sensitivity obtains −5001.31 pm/°C. Full article
(This article belongs to the Special Issue 2D Material Based Plasmonic Biosensors)
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Article
Giant Goos-Hänchen Shifts in Au-ITO-TMDCs-Graphene Heterostructure and Its Potential for High Performance Sensor
Sensors 2020, 20(4), 1028; https://doi.org/10.3390/s20041028 - 14 Feb 2020
Cited by 10 | Viewed by 999
Abstract
In order to improve the performance of surface plasmon resonance (SPR) biosensor, the structure based on two-dimensional (2D) of graphene and transition metal dichalcogenides (TMDCs) are proposed to greatly enhance the Goos-Hänchen (GH) shift. It is theoretically proved that GH shift can be [...] Read more.
In order to improve the performance of surface plasmon resonance (SPR) biosensor, the structure based on two-dimensional (2D) of graphene and transition metal dichalcogenides (TMDCs) are proposed to greatly enhance the Goos-Hänchen (GH) shift. It is theoretically proved that GH shift can be significantly enhanced in SPR structure coated with gold (Au)-indium tin oxide (ITO)-TMDCs-graphene heterostructure. In order to realize high GH shifts, the number of TMDCs and graphene layer are optimized. The highest GH shift (−801.7 λ) is obtained by Au-ITO-MoSe2-graphene hybrid structure with MoSe2 monolayer and graphene bilayer, respectively. By analyzing the GH variation, the index sensitivity of such configuration can reach as high as 8.02 × 105 λ/RIU, which is 293.24 times of the Au-ITO structure and 177.43 times of the Au-ITO-graphene structure. The proposed SPR biosensor can be widely used in the precision metrology and optical sensing. Full article
(This article belongs to the Special Issue 2D Material Based Plasmonic Biosensors)
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Article
Spectrometer-Free Graphene Plasmonics Based Refractive Index Sensor
Sensors 2020, 20(8), 2347; https://doi.org/10.3390/s20082347 - 20 Apr 2020
Cited by 5 | Viewed by 930
Abstract
We propose a spectrometer-free refractive index sensor based on a graphene plasmonic structure. The spectrometer-free feature of the device is realized thanks to the dynamic tunability of graphene’s chemical potential, through electrostatic biasing. The proposed sensor exhibits a 1566 nm/RIU sensitivity, a 250.6 [...] Read more.
We propose a spectrometer-free refractive index sensor based on a graphene plasmonic structure. The spectrometer-free feature of the device is realized thanks to the dynamic tunability of graphene’s chemical potential, through electrostatic biasing. The proposed sensor exhibits a 1566 nm/RIU sensitivity, a 250.6 RIU−1 figure of merit in the optical mode of operation and a 713.2 meV/RIU sensitivity, a 246.8 RIU−1 figure of merit in the electrical mode of operation. This performance outlines the optimized operation of this spectrometer-free sensor that simplifies its design and can bring terahertz sensing one step closer to its practical realization, with promising applications in biosensing and/or gas sensing. Full article
(This article belongs to the Special Issue 2D Material Based Plasmonic Biosensors)
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Letter
High-Sensitivity Goos-Hänchen Shifts Sensor Based on BlueP-TMDCs-Graphene Heterostructure
Sensors 2020, 20(12), 3605; https://doi.org/10.3390/s20123605 - 26 Jun 2020
Cited by 2 | Viewed by 992
Abstract
Surface plasmon resonance (SPR) with two-dimensional (2D) materials is proposed to enhance the sensitivity of sensors. A novel Goos–Hänchen (GH) shift sensing scheme based on blue phosphorene (BlueP)/transition metal dichalogenides (TMDCs) and graphene structure is proposed. The significantly enhanced GH shift is obtained [...] Read more.
Surface plasmon resonance (SPR) with two-dimensional (2D) materials is proposed to enhance the sensitivity of sensors. A novel Goos–Hänchen (GH) shift sensing scheme based on blue phosphorene (BlueP)/transition metal dichalogenides (TMDCs) and graphene structure is proposed. The significantly enhanced GH shift is obtained by optimizing the layers of BlueP/TMDCs and graphene. The maximum GH shift of the hybrid structure of Ag-Indium tin oxide (ITO)-BlueP/WS2–graphene is −2361λ with BlueP/WS2 four layers and a graphene monolayer. Furthermore, the GH shift can be positive or negative depending on the layer number of BlueP/TMDCs and graphene. For sensing performance, the highest sensitivity of 2.767 × 107λ/RIU is realized, which is 5152.7 times higher than the traditional Ag-SPR structure, 2470.5 times of Ag-ITO, 2159.2 times of Ag-ITO-BlueP/WS2, and 688.9 times of Ag-ITO–graphene. Therefore, such configuration with GH shift can be used in various chemical, biomedical and optical sensing fields. Full article
(This article belongs to the Special Issue 2D Material Based Plasmonic Biosensors)
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