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Nanomaterials Synthesis for Both Sensors and Environmental Applications: Part 2

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

Deadline for manuscript submissions: closed (15 February 2024) | Viewed by 7783

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Special Issue Information

Dear Colleagues,

The synthesis of novel nanomaterials and nanodevices for both sensors and environmental applications is of immense importance. Nanomaterials provide unique electronic, magnetic, and chemical properties making them novel and attractive for the new generation of devices. For example, graphene-based nanocomposites and nano-oxides can be used efficiently for the removal of arsenic ions from contaminated water supplies, which in turn can save lives and lower the capital cost for the purification of water in highly arsenic-contaminated areas. The topics covered in this Special Issue will represent recent innovations in nanomaterials synthesis and characterization for use in both sensors and environmental applications. The removal of toxic containments from water, the catalytic oxidation of toxic gases such as carbon monoxide, as well as the synthesis and characterization of nanomaterials for biosensing applications are some of the topics that will be covered in this Special Issue. Both review and original research articles are welcomed from a broad spectrum of disciplines such as physics, chemistry, biochemistry, medicine, analytical science, environmental science, materials science, and engineering to highlight the latest developments and future challenges in this exciting filed of nanomaterials synthesis and characterization.

You may choose our Joint Special Issue in Chemosensors.

Dr. Sherif Moussa
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.

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Keywords

nanomaterials synthesis and characterization
graphene-based nanocomposites for electronic applications
nanomaterials for biosensors use and applications
nano-oxides for CO catalytic oxidation and other catalytic applications
graphene-based nanomaterials for environmental applications
nanomaterials use for sensors applications

Published Papers (2 papers)

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Research

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13 pages, 3739 KiB

Open AccessArticle

Paper-Based Electrodes Decorated with Silver and Zinc Oxide Nanocomposite for Electro-Chemical Sensing of Methamphetamine

by Nigar Anzar, Shariq Suleman, Husnara Bano, Suhel Parvez, Manika Khanuja, Roberto Pilloton and Jagriti Narang

Sensors 2023, 23(12), 5519; https://doi.org/10.3390/s23125519 - 12 Jun 2023

Cited by 2 | Viewed by 1505

Abstract

We present the development of an electrochemical paper-based analytical device (ePAD) for the detection of methamphetamine. Methamphetamine is a stimulant that young people use as an addictive narcotic, and it must be detected quickly since it may be hazardous. The suggested ePAD has the advantages of being simple, affordable, and recyclable. This ePAD was developed by immobilizing a methamphetamine-binding aptamer onto Ag-ZnO nanocomposite electrodes. The Ag-ZnO nanocomposites were synthesized via a chemical method and were further characterized via scanning electron microscopy, Fourier transform infrared spectroscopy, and UV-vis spectrometry in terms of their size, shape, and colloidal activity. The developed sensor showed a limit of detection of about 0.1 μg/mL, with an optimum response time of about 25 s, and its extensive linear range was between 0.01 and 6 μg/mL. The application of the sensor was recognized by spiking different beverages with methamphetamine. The developed sensor has a shelf life of about 30 days. This cost-effective and portable platform might prove to be highly successful in forensic diagnostic applications and will benefit those who cannot afford expensive medical tests. Full article

(This article belongs to the Special Issue Nanomaterials Synthesis for Both Sensors and Environmental Applications: Part 2)

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Review

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52 pages, 5726 KiB

Open AccessReview

The Role of Silver Nanoparticles in Electrochemical Sensors for Aquatic Environmental Analysis

by Irena Ivanišević

Sensors 2023, 23(7), 3692; https://doi.org/10.3390/s23073692 - 02 Apr 2023

Cited by 10 | Viewed by 5479

Abstract

With rapidly increasing environmental pollution, there is an urgent need for the development of fast, low-cost, and effective sensing devices for the detection of various organic and inorganic substances. Silver nanoparticles (AgNPs) are well known for their superior optoelectronic and physicochemical properties, and have, therefore, attracted a great deal of interest in the sensor arena. The introduction of AgNPs onto the surface of two-dimensional (2D) structures, incorporation into conductive polymers, or within three-dimensional (3D) nanohybrid architectures is a common strategy to fabricate novel platforms with improved chemical and physical properties for analyte sensing. In the first section of this review, the main wet chemical reduction approaches for the successful synthesis of functional AgNPs for electrochemical sensing applications are discussed. Then, a brief section on the sensing principles of voltammetric and amperometric sensors is given. The current utilization of silver nanoparticles and silver-based composite nanomaterials for the fabrication of voltammetric and amperometric sensors as novel platforms for the detection of environmental pollutants in water matrices is summarized. Finally, the current challenges and future directions for the nanosilver-based electrochemical sensing of environmental pollutants are outlined. Full article

(This article belongs to the Special Issue Nanomaterials Synthesis for Both Sensors and Environmental Applications: Part 2)

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