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Nanomaterials
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Functional Nanomaterials for Sensing and Detection (2nd Edition)
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Special Issue "Functional Nanomaterials for Sensing and Detection (2nd Edition)"

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

Deadline for manuscript submissions: 26 February 2024 | Viewed by 896

Special Issue Editors

Prof. Dr. Weiping Cai

E-Mail Website
Guest Editor
Institute of Solid State Physics, HFIPS, Chinese Academy of Sciences, Hefei 230031, China
Interests: colloidal self-assembly; artificial micro/nanostructures; micro/nanostructured meta-surfaces; functional elementary ordered nanomaterial; nanostructured thin films; micro/nanostructured devices and sensors; surface enhanced Raman spectroscopy and applications
Special Issues, Collections and Topics in MDPI journals
Dr. Hongwen Zhang

E-Mail
Guest Editor
Institute of Solid State Physics Chinese Academy of Sciences, Hefei, China
Interests: SERS

Special Issue Information

Dear Colleague,

Functional nanomaterials involve various nanostructured objects: zero-dimensional (0D), 1D, and 2D nano-objects (nanoparticles, nanowires, nanotubes, nanosheets, and so on), as well as materials with nanostructured surfaces including metals, semiconductors, and organic materials. These nanomaterials possess a high surface/volume ratio and nanotip- and nanogap-induced physical effects, which lead to significantly different functional properties from those presented by the bulk materials, and hence have great potential applications in sensing and detection.

These functional nanomaterials for sensing and detection are mostly used as transducers in tools such as spectral devices and chemiresistive sensors. They are also employed in some nanosensor designs as capture agents (magnetic nanoparticles), signal amplifiers (plasmonic metals with nanopatterned surfaces for surface-enhanced Raman spectroscopic chips), identification elements (polymers for molecular imprinting), and more.

This Special Issue will attempt to present a collection of original research papers and reviews of the latest advances in the field of functional nanomaterials for sensing and detection.

Prof. Dr. Weiping Cai
Dr. Hongwen Zhang
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. Nanomaterials 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 2900 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

  • functional nanomaterials
  • heterogeneous nanostructures
  • nanopatterned surfaces
  • sensing performance
  • surface modification
  • nanosensors
  • fast and trace detection

Related Special Issue

Published Papers (2 papers)

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Research

13 pages, 2265 KiB  
Article
A Design Strategy for Surface Nanostructures to Realize Sensitive Refractive-Index Optical Sensors
by
Masanobu Iwanaga
Nanomaterials 2023, 13(24), 3081; https://doi.org/10.3390/nano13243081 - 05 Dec 2023
Viewed by 115
Abstract
Refractive-index optical sensors have been extensively studied. Originally, they were surface plasmon resonance sensors using only a flat gold film. Currently, to develop practically useful label-free optical sensors, numerous proposals for refractive index sensors have been made using various nanostructures composed of metals [...] Read more.
Refractive-index optical sensors have been extensively studied. Originally, they were surface plasmon resonance sensors using only a flat gold film. Currently, to develop practically useful label-free optical sensors, numerous proposals for refractive index sensors have been made using various nanostructures composed of metals and dielectrics. In this study, we explored a rational design strategy for sensors using surface nanostructures comprising metals or dielectrics. Optical responses, such as reflection and transmission, and resonant electromagnetic fields were computed using a numerical method of rigorous coupled-wave analysis combined with a scattering-matrix algorithm. As a result, good performance that almost reached the physical limit was achieved using a plasmonic surface lattice structure. Furthermore, to precisely trace the refractive-index change, a scheme using two physical quantities, resonant wavelength and reflection amplitude, was found to be valid for a 2D silicon metasurface. Full article
(This article belongs to the Special Issue Functional Nanomaterials for Sensing and Detection (2nd Edition))
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11 pages, 2051 KiB  
Article
Pixelated Filter Array for On-Chip Polarized Spectral Detection
by
Yuechen Liu
,
Chao Feng
,
Siyu Dong
,
Jingyuan Zhu
,
Zhanshan Wang
and
Xinbin Cheng
Nanomaterials 2023, 13(19), 2624; https://doi.org/10.3390/nano13192624 - 23 Sep 2023
Viewed by 565
Abstract
On-chip multi-dimensional detection systems integrating pixelated polarization and spectral filter arrays are the latest trend in optical detection instruments, showing broad application potential for diagnostic medical imaging and remote sensing. However, thin-film or microstructure-based filter arrays typically have a trade-off between the detection [...] Read more.
On-chip multi-dimensional detection systems integrating pixelated polarization and spectral filter arrays are the latest trend in optical detection instruments, showing broad application potential for diagnostic medical imaging and remote sensing. However, thin-film or microstructure-based filter arrays typically have a trade-off between the detection dimension, optical efficiency, and spectral resolution. Here, we demonstrate novel on-chip integrated polarization spectral detection filter arrays consisting of metasurfaces and multilayer films. The metasurfaces with two nanopillars in one supercell are designed to modulate the Jones matrix for polarization selection. The angle of diffraction of the metasurfaces and the optical Fabry–Perot (FP) cavities determine the spectrum’s center wavelength. The polarization spectral filter arrays are placed on top of the CMOS sensor; each array corresponds to one pixel, resulting in high spectral resolution and optical efficiency in the selected polarization state. To verify the methodology, we designed nine-channel polarized spectral filter arrays in a wavelength range of 1350 nm to 1550 nm for transverse electric (TE) linear polarization. The array has a 10 nm balanced spectral resolution and average peak transmission efficiency of over 75%, which is maintained by utilizing lossless dielectric material. The proposed array can be fabricated using overlay e-beam lithography, and the process is CMOS-compatible. The proposed array enables broader applications of in situ on-chip polarization spectral detection with high efficiency and spectral resolution, as well as in vivo imaging systems. Full article
(This article belongs to the Special Issue Functional Nanomaterials for Sensing and Detection (2nd Edition))
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