Development of Smart Materials for Chemical Sensing

A special issue of Processes (ISSN 2227-9717). This special issue belongs to the section "Chemical Processes and Systems".

Deadline for manuscript submissions: 15 July 2025 | Viewed by 1589

Special Issue Editors


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Guest Editor
Molecular Sciences Institute, School of Chemistry, University of the Witwatersrand, Braamfontein 2050, South Africa
Interests: materials synthesis; gas sensors; electron microscopy, materials characterization; carbon nanomaterials; upcycling; biomass conversion; green energy

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Guest Editor
Molecular Sciences Institute, School of Chemistry, University of the Witwatersrand, Johannesburg 2001, South Africa
Interests: transition metal dichalcogenides; 2D semiconducting materials; chemical sensors; bioplastics

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Guest Editor
Nanotechnology Innovation Centre (NIC), Advanced Materials Division, Mintek, Private Bag X3015, Randburg 2125, South Africa
Interests: gas sensors; metal oxide semiconductors; electrospinning; nanomaterials

Special Issue Information

Dear Colleagues,

Chemical sensing deals with various factors, including the precise detection of analyte concentrations, which is important in various processes in industry, health and environmental safety. Recent chemical sensing research puts a special focus on the behaviour of the sensing material. Methods of material growth, the affordability of precursors, material properties, sensitivity, selectivity, stability, and the fabrication of affordable and portable sensing devices are some important considerations.

This Special Issue focuses on the latest advances in the development of smart materials for application in chemical sensing. A comprehensive assessment and demonstration of material development processes as a key factor in the production of high-quality chemical sensors will be an advantage. Different material processing techniques and state-of-the-art characterization to showcase the art of material fabrication will be considered. Top-down and bottom-up approaches with different phases of resource materials and other green and smart procedures for material growth or deposition will be considered. Detailed discussions of material growth mechanisms remain a critical issue in the understanding and control of material growth processes. Further, a consideration of sustainable processes aligned with the UN 2030 agenda is encouraged. The application of smart materials in chemical sensing promotes several sustainable development goals, including good health and well-being, innovation, climate action and several more related to environmental remediation. A demonstration of the use of smart materials in chemical sensing and a discussion on how these sensors are commercially relevant is encouraged. Sensors for health diagnostics, heavy metal ion detection and air quality monitoring will all be considered in this Special Issue. Original and review articles on fundamental scientific research and chemical sensing technological applications are welcome.

Contributions are invited from researchers, academics, the industry and independent bodies working in the specified areas.

Dr. Ella Linganiso-Dziike
Dr. Siziwe Sylvia Gqoba
Dr. Katekani Shingange
Guest Editors

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. Processes is an international peer-reviewed open access monthly journal published by MDPI.

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Keywords

  • materials deposition
  • materials characterization
  • nanomaterials
  • chemical sensors
  • environmental remediation
  • sensors for climate-smart agriculture
  • clean environment
  • clean water
  • health diagnostics
  • air quality monitoring

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Published Papers (1 paper)

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46 pages, 9548 KiB  
Review
Advances in Polyaniline-Based Composites for Room-Temperature Chemiresistor Gas Sensors
by Clinton M. Masemola, Nosipho Moloto, Zikhona Tetana, Linda Z. Linganiso, Tshwafo E. Motaung and Ella C. Linganiso-Dziike
Processes 2025, 13(2), 401; https://doi.org/10.3390/pr13020401 - 3 Feb 2025
Viewed by 1344
Abstract
The increasing rate of environmental pollution and the emergence of new infectious diseases have drawn much attention toward the area of gas sensors for air quality monitoring and early-stage disease diagnosis, respectively. Polyaniline (PANI) has become one of the extensively studied polymers in [...] Read more.
The increasing rate of environmental pollution and the emergence of new infectious diseases have drawn much attention toward the area of gas sensors for air quality monitoring and early-stage disease diagnosis, respectively. Polyaniline (PANI) has become one of the extensively studied polymers in the area of chemical sensing due to its good conductivity and sensitivity at room temperature. The development of room-temperature gas sensors represents a significant leap forward in air quality monitoring by conserving energy and enhancing the feasibility of the commercial development of sensing technologies. New research shines a light on the advantages of using PANI with materials such as semiconductor metal chalcogenides, metal oxides, metal nanoparticles, and graphitic carbon materials to form composites that can sense chemicals selectively at room temperature. This review focuses on the advancements in PANI-based gas sensors, exploring the materials, mechanisms, and applications that make these sensors a promising solution for modern air quality monitoring challenges. By examining the latest research and innovations, we aim to highlight this critical technology’s potential and future directions, instilling hope and optimism in safeguarding public health and the environment. Full article
(This article belongs to the Special Issue Development of Smart Materials for Chemical Sensing)
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