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Porous Nanomaterials in High Performance Sensors
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Porous Nanomaterials in High Performance Sensors

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

Deadline for manuscript submissions: closed (10 July 2022) | Viewed by 4378

Special Issue Editor

Dr. Judson D. Ryckman

E-Mail Website
Guest Editor
Department of Electrical and Computer Engineering, Clemson University, Clemson, SC, USA
Interests: Nanophotonics; sensing; nanofabrication; enhanced light-matter interactions; nanomaterials

Special Issue Information

Dear Colleagues,

Advanced sensing technologies capable of high-performance detection of physical, chemical, mechanical, environmental, and/or biological attributes are crucial for applications ranging from point-of-care diagnostics to environmental monitoring. Research in this important area is required to study and improve: sensing interfaces, transduction mechanisms, materials, manufacturing, and real-world applications. To this end, porous nanomaterials have emerged as a powerful and intensely studied platform for constructing innovative and high-performance sensors.

This Special Issue is dedicated to recent advances in sensors and sensing technologies that harness the attractive properties of porous nanomaterials. The topics of interest include, but are not limited to, the following:

  • Sensors in porous semiconductors and dielectrics
  • Sensors in porous metals and other porous nanomaterials
  • Sensors for environmental monitoring
  • Biosensors for healthcare or biomedical applications
  • Real-time sensors, biosensors, and their kinetics
  • Optical, electrical, or mechanical sensors and biosensors
  • In vivo diagnostic applications of porous nanomaterials
  • Advanced design, fabrication, surface modification, and/or analysis techniques
  • Novel form factors and emerging applications of porous nanomaterial-based sensors

Dr. Judson D. Ryckman
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 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. 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 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

  • porous nanomaterials
  • sensors
  • biosensors
  • environmental sensors
  • nanosensors
  • nanopores.

Published Papers (2 papers)

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Research

12 pages, 2734 KiB  
Article
Evaluation of Mesoporous TiO2 Layers as Glucose Optical Sensors
by David Ortiz de Zárate, Sara Serna, Salvador Ponce-Alcántara and Jaime García-Rupérez
Sensors 2022, 22(14), 5398; https://0-doi-org.brum.beds.ac.uk/10.3390/s22145398 - 20 Jul 2022
Viewed by 1358
Abstract
Porous materials are currently the basis of many optical sensors because of their ability to provide a higher interaction between the light and the analyte, directly within the optical structure. In this study, mesoporous TiO2 layers were fabricated using a bottom-up synthesis [...] Read more.
Porous materials are currently the basis of many optical sensors because of their ability to provide a higher interaction between the light and the analyte, directly within the optical structure. In this study, mesoporous TiO2 layers were fabricated using a bottom-up synthesis approach in order to develop optical sensing structures. In comparison with more typical top-down fabrication strategies where the bulk constitutive material is etched in order to obtain the required porous medium, the use of a bottom-up fabrication approach potentially allows increasing the interconnectivity of the pore network, hence improving the surface and depth homogeneity of the fabricated layer and reducing production costs by synthesizing the layers on a larger scale. The sensing performance of the fabricated mesoporous TiO2 layers was assessed by means of the measurement of several glucose dilutions in water, estimating a limit of detection even below 0.15 mg/mL (15 mg/dL). All of these advantages make this platform a very promising candidate for the development of low-cost and high-performance optical sensors. Full article
(This article belongs to the Special Issue Porous Nanomaterials in High Performance Sensors)
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10 pages, 2205 KiB  
Communication
Peptide-Based Capture of Chikungunya Virus E2 Protein Using Porous Silicon Biosensor
by Rabeb Layouni, Tengfei Cao, Matthew B. Coppock, Paul E. Laibinis and Sharon M. Weiss
Sensors 2021, 21(24), 8248; https://0-doi-org.brum.beds.ac.uk/10.3390/s21248248 - 10 Dec 2021
Cited by 3 | Viewed by 2437
Abstract
The detection of pathogens presents specific challenges in ensuring that biosensors remain operable despite exposure to elevated temperatures or other extreme conditions. The most vulnerable component of a biosensor is typically the bioreceptor. Accordingly, the robustness of peptides as bioreceptors offers improved stability [...] Read more.
The detection of pathogens presents specific challenges in ensuring that biosensors remain operable despite exposure to elevated temperatures or other extreme conditions. The most vulnerable component of a biosensor is typically the bioreceptor. Accordingly, the robustness of peptides as bioreceptors offers improved stability and reliability toward harsh environments compared to monoclonal antibodies that may lose their ability to bind target molecules after such exposures. Here, we demonstrate peptide-based capture of the Chikungunya virus E2 protein in a porous silicon microcavity biosensor at room temperature and after exposure of the peptide-functionalized biosensor to high temperature. Contact angle measurements, attenuated total reflectance—Fourier transform infrared spectra, and optical reflectance measurements confirm peptide functionalization and selective E2 protein capture. This work opens the door for other pathogenic biomarker detection using peptide-based capture agents on porous silicon and other surface-based sensor platforms. Full article
(This article belongs to the Special Issue Porous Nanomaterials in High Performance Sensors)
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