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Nanomaterials as Key for Next Generation Sensors
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Nanomaterials as Key for Next Generation Sensors

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

Deadline for manuscript submissions: closed (31 December 2020) | Viewed by 24134

Special Issue Editors

Dr. Bergoi Ibarlucea

E-Mail Website
Guest Editor
Chair of Materials Science and Nanotechnology, TU Dresden, 01062 Dresden, Germany
Interests: biosensors; surface chemistry; lab on a chip; microfluidics; flexible and wearable electronics; nanomaterials
Special Issues, Collections and Topics in MDPI journals
Prof. Dr. Gianaurelio Cuniberti

E-Mail Website
Co-Guest Editor
Technische Universität Dresden, Dresden, Germany
Interests: theory of the electronic and structural properties of nanoscale materials; materials research; molecular electronics; sensorics; bioelectronics; environmental nanoscience
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

With the advances of nanotechnology, the introduction of nanomaterials as sensing elements into the existing sensor technologies that have been developed for decades have contributed to an impressive increase in the sensitivity. With various electrical and optical properties and geometries, low-dimensional structures, such as wires, tubes, flakes, fibers, etc., represent unique opportunities by providing thickness and lateral dimensions similar to those of target (bio)chemical species. The tuning of their composition and surface modifications further widen the possible applications.

In this Special Issue, we want to highlight the most recent advances in the development of new nanomaterials, the modification of existing ones, or their innovative and alternative use in sensing applications.

Dr. Bergoi Ibarlucea
Prof. Dr. Gianaurelio Cuniberti
Guest Editor

Manuscript Submission Information

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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

  • low-dimensional structures
  • materials research
  • nanomaterials
  • nanosensors
  • 2D materials
  • nanowires
  • nanotubes
  • graphene

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Published Papers (3 papers)

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Review

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62 pages, 14090 KiB  
Review
Inorganic-Diverse Nanostructured Materials for Volatile Organic Compound Sensing
by Muthaiah Shellaiah and Kien Wen Sun
Sensors 2021, 21(2), 633; https://doi.org/10.3390/s21020633 - 18 Jan 2021
Cited by 17 | Viewed by 3939
Abstract
Environmental pollution related to volatile organic compounds (VOCs) has become a global issue which attracts intensive work towards their controlling and monitoring. To this direction various regulations and research towards VOCs detection have been laid down and conducted by many countries. Distinct devices [...] Read more.
Environmental pollution related to volatile organic compounds (VOCs) has become a global issue which attracts intensive work towards their controlling and monitoring. To this direction various regulations and research towards VOCs detection have been laid down and conducted by many countries. Distinct devices are proposed to monitor the VOCs pollution. Among them, chemiresistor devices comprised of inorganic-semiconducting materials with diverse nanostructures are most attractive because they are cost-effective and eco-friendly. These diverse nanostructured materials-based devices are usually made up of nanoparticles, nanowires/rods, nanocrystals, nanotubes, nanocages, nanocubes, nanocomposites, etc. They can be employed in monitoring the VOCs present in the reliable sources. This review outlines the device-based VOC detection using diverse semiconducting-nanostructured materials and covers more than 340 references that have been published since 2016. Full article
(This article belongs to the Special Issue Nanomaterials as Key for Next Generation Sensors)
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28 pages, 6253 KiB  
Review
A Critical Review of Electrochemical Glucose Sensing: Evolution of Biosensor Platforms Based on Advanced Nanosystems
by Vuslat B. Juska and Martyn E. Pemble
Sensors 2020, 20(21), 6013; https://doi.org/10.3390/s20216013 - 23 Oct 2020
Cited by 130 | Viewed by 15550
Abstract
The research field of glucose biosensing has shown remarkable growth and development since the first reported enzyme electrode in 1962. Extensive research on various immobilization methods and the improvement of electron transfer efficiency between the enzyme and the electrode have led to the [...] Read more.
The research field of glucose biosensing has shown remarkable growth and development since the first reported enzyme electrode in 1962. Extensive research on various immobilization methods and the improvement of electron transfer efficiency between the enzyme and the electrode have led to the development of various sensing platforms that have been constantly evolving with the invention of advanced nanostructures and their nano-composites. Examples of such nanomaterials or composites include gold nanoparticles, carbon nanotubes, carbon/graphene quantum dots and chitosan hydrogel composites, all of which have been exploited due to their contributions as components of a biosensor either for improving the immobilization process or for their electrocatalytic activity towards glucose. This review aims to summarize the evolution of the biosensing aspect of these glucose sensors in terms of the various generations and recent trends based on the use of applied nanostructures for glucose detection in the presence and absence of the enzyme. We describe the history of these biosensors based on commercialized systems, improvements in the understanding of the surface science for enhanced electron transfer, the various sensing platforms developed in the presence of the nanomaterials and their performances. Full article
(This article belongs to the Special Issue Nanomaterials as Key for Next Generation Sensors)
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Other

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12 pages, 2854 KiB  
Letter
Nonporous Inorganic Nanoparticle-Based Humidity Sensor: Evaluation of Humidity Hysteresis and Response Time
by Shinya Kano and Harutaka Mekaru
Sensors 2020, 20(14), 3858; https://doi.org/10.3390/s20143858 - 10 Jul 2020
Cited by 24 | Viewed by 3970
Abstract
Fast-response humidity sensors using nanomaterials are attractive and have been intensively studied. Among the various nanomaterials, nonporous inorganic nanoparticles are suitable for use in humidity sensitive films for sensors. Here, we focus on a nonporous inorganic nanoparticle film and investigate a humidity sensor [...] Read more.
Fast-response humidity sensors using nanomaterials are attractive and have been intensively studied. Among the various nanomaterials, nonporous inorganic nanoparticles are suitable for use in humidity sensitive films for sensors. Here, we focus on a nonporous inorganic nanoparticle film and investigate a humidity sensor using the film. Hysteresis error and a dynamic response to a change of humidity are fundamental specifications of humidity sensors. A humidity sensor using a 50 nm silica nanoparticle film shows a hysteresis error of 2% at 85% RH and a response/recovery time of 2.8/2.3 s in 30% RH to 70% RH. We also summarize response/recovery times and hysteresis errors of state-of-the-art humidity sensors. As compared to those of commercial sensors and porous nanoparticle-based sensors evaluated using saturated salt solutions, the fabricated sensor shows a comparative hysteresis error and shorter response time. Full article
(This article belongs to the Special Issue Nanomaterials as Key for Next Generation Sensors)
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