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Micromachines
Special Issues
New Insights in LSPR Sensors
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New Insights in LSPR Sensors

A special issue of Micromachines (ISSN 2072-666X). This special issue belongs to the section "A：Physics".

Deadline for manuscript submissions: closed (30 July 2023) | Viewed by 6152

Special Issue Editors

Dr. Satyendra Kumar Mishra

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Guest Editor
Department of Electrical Engineering and Computer Engineering, Laval University, Québec, QC G1V 0A6, Canada
Interests: SPR sensor; plasmonic sensor; integrated optics; fiber optics sensor; communication
Special Issues, Collections and Topics in MDPI journals
Dr. Akhilesh Kumar Mishra

E-Mail Website
Guest Editor
Department of Physics, Indian Institute of Technology Roorkee, Roorkee 247667, Uttarakhand, India
Interests: nonlinear optics; ultra short pulse propagation in meta-materials and fibers; light-matter interaction; light matter interaction in two-level systems; structured light; optical angular momentum of optical beams and pulses; tailoring light in all its degrees of freedom; plasmonics; quantum plasmonics and plasmonic sensing
Special Issues, Collections and Topics in MDPI journals
Dr. Shawana Tabassum

E-Mail Website
Guest Editor
Department of Electrical Engineering, The University of Texas at Tyler, Tyler, TX 75799, USA
Interests: plasmonics; photonic crystal; metastructure; grating; chalcogenides; optofluidics
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

The last two decades have witnessed a lot of research activities in the field of surface plasmon resonance (SPR) based sensing. Among several SPR phenomena, localized surface plasmon resonance (LSPR) denotes SPR on the surface of nanostructure substrates or nanoparticles with a large concentration in a well-confined area. Localized surface plasmon resonance is obtained when incident light induces a locally coherent oscillation of opposite charges at surfaces or interfaces of metals to create surface plasmon resonance, and it can be used for altering metallic nanostructures and for providing high sensitivity and label-free methods for emerging areas of biological detection.

This Special Issue will collect papers on the integration of localized surface plasmon resonance sensors with microfluidic, photonic circuits, and microelectronics, which permits the realization of comprehensive sensing systems for lab-on-a-chip and mobile applications.

Dr. Satyendra Kumar Mishra
Dr. Akhilesh Kumar Mishra
Dr. Shawana Tabassum
Guest Editors

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 submissions that pass pre-check are 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. Micromachines is an international peer-reviewed open access monthly 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 2600 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

  • fiber optic sensor
  • waveguide-based sensor
  • bio sensor
  • drug delivery
  • spectroscopy
  • chemical sensor

Published Papers (3 papers)

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Research

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13 pages, 4692 KiB  
Article
Investigation of Performance Parameters of Spherical Gold Nanoparticles in Localized Surface Plasmon Resonance Biosensing
by Vivek Semwal, Oliver Rishøj Jensen, Ole Bang and Jakob Janting
Micromachines 2023, 14(9), 1717; https://doi.org/10.3390/mi14091717 - 31 Aug 2023
Cited by 5 | Viewed by 1232
Abstract
In this paper, we present numerical and experimental results on Localized Surface Plasmon Resonance (LSPR) refractive index (RI) sensitivity, Figure of Merit (FoM), and penetration depth (dp) dependence on spherical gold nanoparticles (AuNPs) size, and the effects of AuNP dimer [...] Read more.
In this paper, we present numerical and experimental results on Localized Surface Plasmon Resonance (LSPR) refractive index (RI) sensitivity, Figure of Merit (FoM), and penetration depth (dp) dependence on spherical gold nanoparticles (AuNPs) size, and the effects of AuNP dimer interparticle distance (ds) studied numerically. These parameters were calculated and observed for d = 20, 40, 60, 80, and 100 nm diameter spherical AuNPs. Our investigation shows d = 60 nm AuNPs give the best FoM. The AuNP dimer interparticle distance can significantly influence the RI sensitivity. Therefore, the effect of distances between pairs of d = 20 nm and 60 nm AuNPs is shown. We discuss the importance of penetration depth information for AuNPs functionalized with aptamers for biosensing in the context of aptamer size. Full article
(This article belongs to the Special Issue New Insights in LSPR Sensors)
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12 pages, 2424 KiB  
Article
Twisted Fiber Optic SPR Sensor for GDF11 Concentration Detection
by Yong Wei, Ze Ran, Rui Wang, Zhuo Ren, Chun-Lan Liu, Chun-Biao Liu, Chen Shi, Chen Wang and Yong-Hui Zhang
Micromachines 2022, 13(11), 1914; https://doi.org/10.3390/mi13111914 - 5 Nov 2022
Cited by 2 | Viewed by 1671
Abstract
There are few methods and insufficient accuracy for growth differentiation factor 11 (GDF11) concentration detection. In this paper, we designed a twisted fiber cladding surface plasmon resonance (SPR) sensor, which can achieve a high precision detection of GDF11 concentration. The new structure of [...] Read more.
There are few methods and insufficient accuracy for growth differentiation factor 11 (GDF11) concentration detection. In this paper, we designed a twisted fiber cladding surface plasmon resonance (SPR) sensor, which can achieve a high precision detection of GDF11 concentration. The new structure of the fiber cladding SPR sensor was realized by coupling the light in the fiber core to the cladding through fiber thermal fusion twisting micromachining technology; a series of functionalized modifications were made to the sensor surface to obtain a fiber sensor capable of GDF11 specific recognition. The experimental results showed when GDF11 antigen concentration was 1 pg/mL–10 ng/mL, the sensor had a detection sensitivity of 2.518 nm/lgC, a detection limit of 0.34 pg/mL, and a good log-linear relationship. The sensor is expected to play a role in the rapid and accurate concentration detection of pathological study for growth differentiation factors. Full article
(This article belongs to the Special Issue New Insights in LSPR Sensors)
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Review

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19 pages, 5380 KiB  
Review
Metallic and Non-Metallic Plasmonic Nanostructures for LSPR Sensors
by Judy Z. Wu, Samar Ali Ghopry, Bo Liu and Andrew Shultz
Micromachines 2023, 14(7), 1393; https://doi.org/10.3390/mi14071393 - 8 Jul 2023
Cited by 4 | Viewed by 2388
Abstract
Localized surface plasmonic resonance (LSPR) provides a unique scheme for light management and has been demonstrated across a large variety of metallic nanostructures. More recently, non-metallic nanostructures of two-dimensional atomic materials and heterostructures have emerged as a promising, low-cost alternative in order to [...] Read more.
Localized surface plasmonic resonance (LSPR) provides a unique scheme for light management and has been demonstrated across a large variety of metallic nanostructures. More recently, non-metallic nanostructures of two-dimensional atomic materials and heterostructures have emerged as a promising, low-cost alternative in order to generate strong LSPR. In this paper, a review of the recent progress made on non-metallic LSPR nanostructures will be provided in comparison with their metallic counterparts. A few applications in optoelectronics and sensors will be highlighted. In addition, the remaining challenges and future perspectives will be discussed. Full article
(This article belongs to the Special Issue New Insights in LSPR Sensors)
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