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Micromachines
Special Issues
Chemical Sensors for Water Contamination Monitoring
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Chemical Sensors for Water Contamination Monitoring

A special issue of Micromachines (ISSN 2072-666X). This special issue belongs to the section "C：Chemistry".

Deadline for manuscript submissions: closed (1 September 2020) | Viewed by 2545

Special Issue Editor

Prof. Dr. Mohsen Asadnia

E-Mail Website
Guest Editor
School of Engineering, Macquarie University, Sydney, NSW 2109, Australia
Interests: MEMS; sensors; biomimetics; microeletromechanical systems; pressure sensors; microfluidics; sensors arrays
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Water contamination is a significant problem associated with energy resources, particularly drinking water, oil and gas extraction and geosequestration. The development of low-cost, portable, robust and accurate sensing systems to detect water contamination is essential to minimise risk to waters and water supplies due to resource extraction. We invite emerging investigators and pioneers to contribute commentaries, perspectives and insightful reviews on related topics.  We will also cover technological breakthroughs described in original works, both short communications and full papers. This Special Issue will stimulate the community and provide an unique collection of insightful papers. We will also cover various topics ranging from MEMS chemical sensors, bio-inspired sensing systems, ion selective membranes, chemical transistors, and microfludics-based sensors that contribute to technological advancements.

Dr. Mohsen Asadnia
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. Micromachines 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 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

  • Chemical sensors
  • Ion selective membranes
  • Insights
  • Advancement
  • Perspective
  • Experimental study
  • Simulation
  • Lab-on-a-chip
  • Development

Published Papers (1 paper)

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Research

13 pages, 10936 KiB  
Article
Cathodically Pretreated AuNPs–BDD Electrode for Detection of Hexavalent Chromium
by Yuhao Xu, Chenyu Xiong, Chengyao Gao, Yang Li, Chao Bian and Shanhong Xia
Micromachines 2020, 11(12), 1095; https://doi.org/10.3390/mi11121095 - 11 Dec 2020
Cited by 5 | Viewed by 2155
Abstract
Hexavalent chromium (Cr (VI)) has strong oxidizing properties and can result in strong carcinogenic effects on human bodies. Therefore, it is necessary to detect hexavalent chromium sensitively and accurately. This article proposes the gold nanoparticles (AuNPs)–boron-doped diamond (BDD) electrode for the direct determination [...] Read more.
Hexavalent chromium (Cr (VI)) has strong oxidizing properties and can result in strong carcinogenic effects on human bodies. Therefore, it is necessary to detect hexavalent chromium sensitively and accurately. This article proposes the gold nanoparticles (AuNPs)–boron-doped diamond (BDD) electrode for the direct determination of chromium with a green and simple detection process by cathodic stripping voltammetry. Gold nanoparticles are used to enhance the detection performance toward Cr (VI). The effect of different pretreatment methods on electrode modification has been studied, and the detection parameters have been optimized. With the optimized conditions, the AuNPs–BDD electrode presents a good linear behavior in a Cr (VI) concentration range of 10 to 1000 μg/L. A low limit of detection of 1.19 μg/L is achieved. The detection process is simple and environmentally friendly. The sensor has been tested for the detection of Cr (VI) in a real water sample with satisfactory results, which indicates potential application of the AuNPs–BDD electrode for the sensitive and onsite detection of Cr (VI). Full article
(This article belongs to the Special Issue Chemical Sensors for Water Contamination Monitoring)
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