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Sensors for Hazardous Material Detection

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

Deadline for manuscript submissions: closed (31 August 2019) | Viewed by 37834

Special Issue Editor


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Guest Editor
Soongsil University
Interests: hazardous materials; spectroscopic monitoring; biosensors; live cell imaging; nanostructure-based sensors; surface-based sensors; 2D-material materials; quantum chemical calculations; computational simulation; synthesis and functionalization of advanced materials

Special Issue Information

Dear Colleagues,

Recent developments in the detection and quantitation of hazardous materials have received particular attention from researchers. The monitoring of hazardous materials is a challenging issue in managing human health and safety. Much research attention has been paid to the detection of biotoxins because of their effects on environmental issues. Since the conventional methods require time-consuming and expensive sample pretreatment and derivatization by a trained expert, there is still a need to develop fast and cost-effective methods for the detection of hazardous materials.

Spectroscopic monitoring can detect trace amounts of hazardous contaminants with high sensitivity by clarifying their chemical identity. In particular, Raman spectroscopy is currently utilized to detect hazardous materials adsorbed on surfaces by combining noble metal nanostructures and allowing ultra-sensitivity in the field of nanobioanalysis. The analysis of vibrational structures also offers detailed high-resolution information on interfacial adsorption structures and surface reactions.

Nanostructured materials in various types of dimensions have attracted significant interest due to their practical applications in water treatment, cancer therapy, and environmental monitoring. The physicochemical characteristics of nanostructures have received attention with respect to their unique light-induced spectroscopic properties. Measurements of surface properties have been performed by various interfacial spectroscopic tools. 2D materials such as graphene and metal chalcogenides have also been used to provide diagnostic tools for analytes and biotoxins. Further applications of 2D materials for hazardous substances have also been a central topic in this issue.

Spectroscopy has been recently applied, in combination with theoretical calculations. Structural information on hazardous materials is useful in estimating the toxicity and harmful effects. Theoretical approaches have provided helpful insights into the stability of the chemical structures and the properties of hazardous materials. Recent developments in density functional theory, molecular dynamics, and simulation methods have helped in understanding the process of estimating toxic materials.

This Special Issue is dedicated to highlighting emerging sensor technologies and their applications to hazardous materials, and aims to present the latest technological and methodological developments in this interdisciplinary field. Special emphasis will be placed on emerging applications for the spectroscopic monitoring, live cell-based imaging, and theoretical calculation approaches of hazardous materials. Full papers, communications, and reviews are welcome. Topics include, but are not limited to, the following:

  • Spectroscopic (infrared, Raman, X-ray, magnetic resonance) monitoring of hazardous species;
  • Surface-enhanced spectroscopic (e.g., SERS, SERRS, SEIRA, plasmon) sensors of hazardous materials;
  • Monitoring of environmentally hazardous materials (e.g., toxic gas, pollutants, fine dust particles, heavy metals);
  • Detection of biohazards (e.g., food contaminants, mycotoxins, pathogens);
  • Spectroscopic detection and toxicological monitoring of living cells (e.g., bacteria, cancer cells, blood cells);
  • New applications of spectroscopic sensors of hazardous materials for environmental, security, safety, and medical purposes;
  • Synthesis and functionalization of zero-dimensional nanomaterials (e.g., metal, semiconductor, core–shell, hollow spheres, porous structures) and applications of sensing properties of hazardous materials;
  • Synthesis and functionalization of one-dimensional nanomaterials (e.g., nanorods, nanotubes, nanowires) and applications of sensing properties of hazardous materials;
  • Synthesis and functionalization of two-dimensional nanomaterials (e.g., graphene, graphene oxide, reduced graphene oxide, dichalcogenides) and applications of sensing properties of hazardous materials;
  • Synthesis and functionalization of three-dimensional nanomaterials (e.g., hierarchical nanostructures and their hybrids, 3D printing materials applications of sensing properties of hazardous materials);
  • Molecular structures of hazardous species (e.g., density functional theory, quantum calculations);
  • Theoretical estimation and simulations of toxicological effects hazardous species (e.g., quantum mechanical theory, molecular dynamics).

Prof. Dr. Sang-Woo Joo
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.

Published Papers (8 papers)

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16 pages, 4363 KiB  
Article
Integrated Laser Sensor (ILS) for Remote Surface Analysis: Application for Detecting Explosives in Fingerprints
by Violeta Lazic, Antonio Palucci, Luigi De Dominicis, Marcello Nuvoli, Marco Pistilli, Ivano Menicucci, Francesco Colao and Salvatore Almaviva
Sensors 2019, 19(19), 4269; https://doi.org/10.3390/s19194269 - 1 Oct 2019
Cited by 15 | Viewed by 3447
Abstract
Here, we describe an innovative Integrated Laser Sensor (ILS) that combines four spectroscopic techniques and two vision systems into a unique, transportable device. The instrument performs Raman and Laser-Induced Fluorescence (LIF) spectroscopy excited at 355 nm and Laser-Induced Breakdown Spectroscopy (LIBS) excited at [...] Read more.
Here, we describe an innovative Integrated Laser Sensor (ILS) that combines four spectroscopic techniques and two vision systems into a unique, transportable device. The instrument performs Raman and Laser-Induced Fluorescence (LIF) spectroscopy excited at 355 nm and Laser-Induced Breakdown Spectroscopy (LIBS) excited at 1064 nm, and it also detects Laser Scattering (LS) from the target under illumination at 650 nm. The combination of these techniques supplies information about: material change from one scanning point to another, the presence of surface contaminants, the molecular and elemental composition of top target layers. Switching between the spectroscopic techniques and the laser wavelengths is fully automatic. The instrument is equipped with an autofocus and it performs scanning with a chosen grid density over an interactively-selected target area. Alternative to the spectroscopic measurements, it is possible to switch the instrument to a high magnification target viewing. The working distances tested until now are between 8.5 and 30 m. The instrument is self-powered and remotely controlled via wireless communication. The ILS has been fully developed at ENEA for security applications and it was successfully tested in two outdoor campaigns where an automatic recognition of areas containing explosives in traces had been implemented. The strategies for the identification of nitro-compounds placed on various substrates as fingerprints and the results obtained at a working distance of 10 m are discussed in the following. Full article
(This article belongs to the Special Issue Sensors for Hazardous Material Detection)
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8 pages, 2543 KiB  
Article
SERS-Based Immunoassays for the Detection of Botulinum Toxins A and B Using Magnetic Beads
by Kihyun Kim, Namhyun Choi, Jun Ho Jeon, Gi-eun Rhie and Jaebum Choo
Sensors 2019, 19(19), 4081; https://doi.org/10.3390/s19194081 - 21 Sep 2019
Cited by 25 | Viewed by 6630
Abstract
Rapid and sensitive detection of botulinum neurotoxins (BoNTs) is important for immediate treatment with proper antitoxins. However, it is difficult to detect BoNTs at the acute phase of infection, owing to its rarity and ambiguous symptoms. To resolve this problem, we developed a [...] Read more.
Rapid and sensitive detection of botulinum neurotoxins (BoNTs) is important for immediate treatment with proper antitoxins. However, it is difficult to detect BoNTs at the acute phase of infection, owing to its rarity and ambiguous symptoms. To resolve this problem, we developed a surface-enhanced Raman scattering (SERS)-based immunoassay technique for the rapid and sensitive detection of BoNTs. Magnetic beads and SERS nanotags as capture substrates and detection probes, respectively, and Nile Blue A (NBA) and malachite green isothiocyanate (MGITC) as Raman reporter molecules were used for the detection of two different types of BoNTs (types A and B), respectively. The corresponding limits of detection (LODs) were determined as 5.7 ng/mL (type A) and 1.3 ng/mL (type B). Total assay time, including that for immunoreaction, washing, and detection, was less than 2 h. Full article
(This article belongs to the Special Issue Sensors for Hazardous Material Detection)
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10 pages, 2127 KiB  
Article
Cuvette-Type LSPR Sensor for Highly Sensitive Detection of Melamine in Infant Formulas
by Seo Yeong Oh, Min Ji Lee, Nam Su Heo, Suji Kim, Jeong Su Oh, Yuseon Lee, Eun Jeong Jeon, Hyungsil Moon, Hyung Soo Kim, Tae Jung Park, Guiim Moon, Hyang Sook Chun and Yun Suk Huh
Sensors 2019, 19(18), 3839; https://doi.org/10.3390/s19183839 - 5 Sep 2019
Cited by 24 | Viewed by 5644
Abstract
The globalization of food distribution has made necessary to secure safe products to the general consumers through the rapid detection of harmful additives on the field. For this purpose, we developed a cuvette-type localized surface plasmon resonance (LSPR) sensor that can be easily [...] Read more.
The globalization of food distribution has made necessary to secure safe products to the general consumers through the rapid detection of harmful additives on the field. For this purpose, we developed a cuvette-type localized surface plasmon resonance (LSPR) sensor that can be easily used by consumers with conventional ultraviolet-visible light spectrophotometer for in-situ measurements. Gold nanoparticles were uniformly deposited on a transparent substrate via a self-assembly method to obtain a plasmonically active chip, and the chemical receptor p-nitroaniline (p-NA) was functionalized to stabilize the device sensitivity under external temperature and pH conditions. The fabricated chip was fixed onto a support and combined with a cuvette-type LSPR sensor. To evaluate the applicability of this sensor on the field, sensitivity and quantitative analysis experiments were conducted onto melamine as a model sample from harmful food additives. Under optimal reaction condition (2 mM p-NA for 20 min), we achieved an excellent detection limit (0.01 ppb) and a dynamic range allowing quantitative analysis over a wide concentration range (0.1–1000 ppb) from commercially available milk powder samples. Full article
(This article belongs to the Special Issue Sensors for Hazardous Material Detection)
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12 pages, 3137 KiB  
Article
An Efficient Electrochemical Sensor Driven by Hierarchical Hetero-Nanostructures Consisting of RuO2 Nanorods on WO3 Nanofibers for Detecting Biologically Relevant Molecules
by Hyerim Lee, Yeomin Kim, Areum Yu, Dasol Jin, Ara Jo, Youngmi Lee, Myung Hwa Kim and Chongmok Lee
Sensors 2019, 19(15), 3295; https://doi.org/10.3390/s19153295 - 26 Jul 2019
Cited by 9 | Viewed by 3509
Abstract
By means of electrospinning with the thermal annealing process, we investigate a highly efficient sensing platform driven by a hierarchical hetero-nanostructure for the sensitive detection of biologically relevant molecules, consisting of single crystalline ruthenium dioxide nanorods (RuO2 NRs) directly grown on the [...] Read more.
By means of electrospinning with the thermal annealing process, we investigate a highly efficient sensing platform driven by a hierarchical hetero-nanostructure for the sensitive detection of biologically relevant molecules, consisting of single crystalline ruthenium dioxide nanorods (RuO2 NRs) directly grown on the surface of electrospun tungsten trioxide nanofibers (WO3 NFs). Electrochemical measurements reveal the enhanced electron transfer kinetics at the prepared RuO2 NRs-WO3 NFs hetero-nanostructures due to the incorporation of conductive RuO2 NRs nanostructures with a high surface area, resulting in improved relevant electrochemical sensing performances for detecting H2O2 and L-ascorbic acid with high sensitivity. Full article
(This article belongs to the Special Issue Sensors for Hazardous Material Detection)
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10 pages, 2321 KiB  
Article
Surface-Enhanced Raman Scattering Detection of Fipronil Pesticide Adsorbed on Silver Nanoparticles
by Nguyễn Hoàng Ly, Thi Ha Nguyen, Ngô Đình Nghi, Young-Han Kim and Sang-Woo Joo
Sensors 2019, 19(6), 1355; https://doi.org/10.3390/s19061355 - 18 Mar 2019
Cited by 37 | Viewed by 5443
Abstract
This work presents a surface-enhanced Raman scattering (SERS) and density functional theory (DFT) study of a fipronil adsorbed on colloidal silver nanoparticles (AgNPs). A standard curve was established to quantify fipronil within a range of 0.0001–0.1 ppm (r2 ≥ 0.985), relying on [...] Read more.
This work presents a surface-enhanced Raman scattering (SERS) and density functional theory (DFT) study of a fipronil adsorbed on colloidal silver nanoparticles (AgNPs). A standard curve was established to quantify fipronil within a range of 0.0001–0.1 ppm (r2 ≥ 0.985), relying on the unique fipronil Raman shift at ~2236 cm−1 adsorbed on AgNPs. DFT calculations suggest that the nitrile moiety (C≡N) binding should be slightly more favorable, by 1.92 kcal/mol, than those of the nitrogen atom of the pyrazole in fipronil and Ag6 atom clusters. The characteristic peaks of the SERS spectrum were identified, and both the calculated vibrational wavenumbers and the Raman intensity pattern were considered. The vibrational spectra of fipronil were obtained from the potential energy distribution (PED) analysis and selective Raman band enhancement. Full article
(This article belongs to the Special Issue Sensors for Hazardous Material Detection)
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15 pages, 4357 KiB  
Article
Zinc/Aluminium–Quinclorac Layered Nanocomposite Modified Multi-Walled Carbon Nanotube Paste Electrode for Electrochemical Determination of Bisphenol A
by Rahadian Zainul, Nurashikin Abd Azis, Illyas Md Isa, Norhayati Hashim, Mohamad Syahrizal Ahmad, Mohamad Idris Saidin and Siriboon Mukdasai
Sensors 2019, 19(4), 941; https://doi.org/10.3390/s19040941 - 22 Feb 2019
Cited by 26 | Viewed by 5007
Abstract
This paper presents the application of zinc/aluminium-layered double hydroxide-quinclorac (Zn/Al-LDH-QC) as a modifier of multiwalled carbon nanotubes (MWCNT) paste electrode for the determination of bisphenol A (BPA). The Zn/Al-LDH-QC/MWCNT morphology was examined by a transmission electron microscope and a scanning electron microscope. Electrochemical [...] Read more.
This paper presents the application of zinc/aluminium-layered double hydroxide-quinclorac (Zn/Al-LDH-QC) as a modifier of multiwalled carbon nanotubes (MWCNT) paste electrode for the determination of bisphenol A (BPA). The Zn/Al-LDH-QC/MWCNT morphology was examined by a transmission electron microscope and a scanning electron microscope. Electrochemical impedance spectroscopy was utilized to investigate the electrode interfacial properties. The electrochemical responses of the modified electrode towards BPA were thoroughly evaluated by using square-wave voltammetry technique. The electrode demonstrated three linear plots of BPA concentrations from 3.0 × 10−8–7.0 × 10−7 M (R2 = 0.9876), 1.0 × 10−6–1.0 × 10−5 M (R2 = 0.9836) and 3.0 × 10−5–3.0 × 10−4 M (R2 = 0.9827) with a limit of detection of 4.4 × 10−9 M. The electrode also demonstrated good reproducibility and stability up to one month. The presence of several metal ions and organic did not affect the electrochemical response of BPA. The electrode is also applicable for BPA determination in baby bottle and mineral water samples with a range of recovery between 98.22% and 101.02%. Full article
(This article belongs to the Special Issue Sensors for Hazardous Material Detection)
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10 pages, 2714 KiB  
Article
Electrodeposition of Pd-Pt Nanocomposites on Porous GaN for Electrochemical Nitrite Sensing
by Rui Xi, Shao-Hui Zhang, Long Zhang, Chao Wang, Lu-Jia Wang, Jing-Hui Yan and Ge-Bo Pan
Sensors 2019, 19(3), 606; https://doi.org/10.3390/s19030606 - 31 Jan 2019
Cited by 22 | Viewed by 4010
Abstract
In recent years, nitrite pollution has become a subject of great concern for human lives, involving a number of fields, such as environment, food industry and biological process. However, the effective detection of nitrite is an instant demand as well as an unprecedented [...] Read more.
In recent years, nitrite pollution has become a subject of great concern for human lives, involving a number of fields, such as environment, food industry and biological process. However, the effective detection of nitrite is an instant demand as well as an unprecedented challenge. Here, a novel nitrite sensor was fabricated by electrochemical deposition of palladium and platinum (Pd-Pt) nanocomposites on porous gallium nitride (PGaN). The obtained Pd-Pt/PGaN sensor provides abundant electrocatalytic sites, endowing it with excellent performances for nitrite detection. The sensor also shows a low detection limit of 0.95 µM, superior linear ampere response and high sensitivity (150 µA/mM for 1 to 300 µM and 73 µA/mM for 300 to 3000 µM) for nitrite. In addition, the Pd-Pt/PGaN sensor was applied and evaluated in the determination of nitrite from the real environmental samples. The experimental results demonstrate that the sensor has good reproducibility and long-term stability. It provides a practical way for rapidly and effectively monitoring nitrite content in the practical application. Full article
(This article belongs to the Special Issue Sensors for Hazardous Material Detection)
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1 pages, 154 KiB  
Erratum
Erratum: Cuvette-Type LSPR Sensor for Highly Sensitive Detection of Melamine in Infant Formulas. Sensors 2018, 19(18), 3839
by Seo Yeong Oh, Min Ji Lee, Nam Su Heo, Suji Kim, Jeong Su Oh, Yuseon Lee, Eun Jeong Jeon, Tae Jung Park, Hyang Sook Chun and Yun Suk Huh
Sensors 2019, 19(21), 4630; https://doi.org/10.3390/s19214630 - 24 Oct 2019
Cited by 1 | Viewed by 1763
Abstract
The authors wish to make the following erratum to this paper [...] Full article
(This article belongs to the Special Issue Sensors for Hazardous Material Detection)
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