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Chemosensors
Special Issues
Advances in Porous Materials for (Bio-)Chemical Sensors
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Advances in Porous Materials for (Bio-)Chemical Sensors

A special issue of Chemosensors (ISSN 2227-9040). This special issue belongs to the section "Materials for Chemical Sensing".

Deadline for manuscript submissions: closed (30 September 2022) | Viewed by 5241

Special Issue Editors

Dr. Sumit Sachdeva

E-Mail Website
Guest Editor
Stamicarbon BV, Sittard 6135, Netherlands
Interests: chemical sensors; material science; analytical techniques; nanotechnology; deposition techniques; nano-fabrication; membranes; adsorption; MOFs; sustainability; semiconductors; thin films; coatings; catalysis
Prof. Dr. Chung-Wei Kung

E-Mail Website
Guest Editor
Department of Chemical Engineering, National Cheng Kung University (NCKU), Tainan 70101, Taiwan
Interests: electrochemistry; metal–organic frameworks; nanomaterials; energy storage and conversion
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

With recent developments in material science, materials like Metal organic frameworks (MOFs), Covalent Organic Frameworks (COFs) have emerged as potential candidates for selective (bio-)chemical detection. Also, there have been significant developments in possible integration within semiconductor industry to enter in the field of portable devices.

This special issue aims to provide a platform to demonstrate the latest research and advancement in the field of (Bio-)chemical sensors from the perspective of porous materials. Both review articles and original research articles are invited with a focus on following fields:

  • Synthesis of porous materials as thin films/coatings
  • Integration of porous materials with semiconductor devices
  • Application of MOFs and COFs for Chemical and Biochemical Sensors
  • Porous materials-based sensors within sensor networks
  • Latest advancements in MOF/COF-based sensor minituarization
  • Sensor prototype developments

Dr. Sumit Sachdeva
Prof. Dr. Chung-Wei Kung
Guest Editors

If you want to learn more information or need any advice, you can contact the Special Issue Editor Tammy Zhang via <[email protected]> directly.

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. Chemosensors 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 2700 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

  • MOFs
  • COFs
  • chemical sensors
  • thin films
  • nanotechnology

Published Papers (3 papers)

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Research

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11 pages, 3716 KiB  
Article
A Cellulose Nanofiber Capacitive Humidity Sensor with High Sensitivity and Fast Recovery Characteristics
by Zhaonan Hou, Zhiyan Ma, Xin Guan, Hongran Zhao, Sen Liu, Teng Fei and Tong Zhang
Chemosensors 2022, 10(11), 464; https://0-doi-org.brum.beds.ac.uk/10.3390/chemosensors10110464 - 08 Nov 2022
Cited by 2 | Viewed by 1282
Abstract
Humidity sensors with high sensitivity and fast response characteristics are of great interest for researchers. In this work, capacitive humidity sensors were fabricated using ionic liquid/cellulose nanofibers (CNFs) as the composited sensing film. The porous CNFs are beneficial for preparing sensing films via [...] Read more.
Humidity sensors with high sensitivity and fast response characteristics are of great interest for researchers. In this work, capacitive humidity sensors were fabricated using ionic liquid/cellulose nanofibers (CNFs) as the composited sensing film. The porous CNFs are beneficial for preparing sensing films via a solution process, and the ionic liquid could be uniformly dispersed in the films. The humidity-sensing performance of the as-prepared sensors was investigated. The optimized sensor showed a high response (27.95 pF/% RH) in a wide humidity range (11–95% RH) and a fast response speed in the adsorption process (the recovery time was only ~1 s). The high response of the sensors was attributed to the polarization at the interface between the electrolyte and the metal electrode, while the fast recovery was due to the rapid desorption of water molecules on the sensing films. Finally, the application of the obtained sensors in human breath monitoring was explored. Full article
(This article belongs to the Special Issue Advances in Porous Materials for (Bio-)Chemical Sensors)
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15 pages, 3194 KiB  
Article
Broadband Dielectric Spectroscopic Detection of Aliphatic Alcohol Vapors with Surface-Mounted HKUST-1 MOFs as Sensing Media
by Papa K. Amoah, Zeinab Mohammed Hassan, Rhonda R. Franklin, Helmut Baumgart, Engelbert Redel and Yaw S. Obeng
Chemosensors 2022, 10(10), 408; https://0-doi-org.brum.beds.ac.uk/10.3390/chemosensors10100408 - 10 Oct 2022
Cited by 1 | Viewed by 1321
Abstract
We leveraged chemical-induced changes to microwave signal propagation characteristics (i.e., S-parameters) to characterize the detection of aliphatic alcohol (methanol, ethanol, and 2-propanol) vapors using TCNQ-doped HKUST-1 metal-organic-framework films as the sensing material, at temperatures under 100 °C. We show that the sensitivity of [...] Read more.
We leveraged chemical-induced changes to microwave signal propagation characteristics (i.e., S-parameters) to characterize the detection of aliphatic alcohol (methanol, ethanol, and 2-propanol) vapors using TCNQ-doped HKUST-1 metal-organic-framework films as the sensing material, at temperatures under 100 °C. We show that the sensitivity of aliphatic alcohol detection depends on the oxidation potential of the analyte, and the impedance of the detection setup depends on the analyte-loading of the sensing medium. The microwaves-based detection technique can also afford new mechanistic insights into VOC detection, with surface-anchored metal-organic frameworks (SURMOFs), which is inaccessible with the traditional coulometric (i.e., resistance-based) measurements. Full article
(This article belongs to the Special Issue Advances in Porous Materials for (Bio-)Chemical Sensors)
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Review

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24 pages, 13147 KiB  
Review
Recent Advances in Metal-Organic Frameworks for Biomacromolecule Sensing
by Yanna Lin, Yong Huang and Xuwei Chen
Chemosensors 2022, 10(10), 412; https://0-doi-org.brum.beds.ac.uk/10.3390/chemosensors10100412 - 11 Oct 2022
Cited by 2 | Viewed by 2249
Abstract
Metal-organic frameworks (MOFs) are emerging class of ordered porous materials consisting of metal clusters and organic ligands. High porosity, adjustable topology, composition and structural diversity have earned MOFs extensive popularity in various fields, including biosensing. This review focuses on understanding the role of [...] Read more.
Metal-organic frameworks (MOFs) are emerging class of ordered porous materials consisting of metal clusters and organic ligands. High porosity, adjustable topology, composition and structural diversity have earned MOFs extensive popularity in various fields, including biosensing. This review focuses on understanding the role of MOFs in biosensing, mainly as efficient signal probes, nanozymes and nanocarriers. It also provides the recent advances of MOFs in sensing biomacromolecules such as protein, peptide, DNA, RNA and polysaccharide. In addition, the challenge, and perspectives, of MOFs in biosensing are presented, based on our opinion. Full article
(This article belongs to the Special Issue Advances in Porous Materials for (Bio-)Chemical Sensors)
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