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Synthesis and Characterization of Optical Sensors for Environmental Monitoring
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Synthesis and Characterization of Optical Sensors for Environmental Monitoring

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

Deadline for manuscript submissions: closed (31 May 2019) | Viewed by 10187

Special Issue Editor

Prof. Dr. Yang-wei Lin

E-Mail Website
Guest Editor
Department of Chemistry, National Changhua University of Education, Chang-Hua, Taiwan
Interests: aptamer sensors; metal nanoparticle/nanocluster-based sensors; chemosensors; gas sensors

Special Issue Information

Dear Colleagues,

The environmental conservation of fresh water resources and the efforts to protect fresh water from hazardous contaminants have become primary priorities in many countries. The early detection and intervention of suspected pollutants are critical to the prevention of potential environmental tragedies. Early detection can be succeeded if a simple and sensitive measuring tool is developed to quantify contaminants in fresh water resources. For a Special Issue on this topic, we invite the submission of manuscripts covering all aspects of environmental monitoring, detection of water pollutants, and ion recognition, including: optochemical sensors, aptamer sensors, biosensors, and the design and fabrication of chemical probes or any other optical-based sensors. Both research and review papers are welcome.

Prof. Dr. Yang-wei Lin
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. 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.

Keywords

  • optical chemical sensors
  • biosensors
  • nanoparticles and qquantum dots
  • aptamers
  • nanostructured materials
  • absorbance
  • photoluminescence
  • chemiluminescence
  • Surface Plasmon Resonance (SPR)
  • water pollutants
  • ion recognition

Published Papers (2 papers)

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Research

23 pages, 8386 KiB  
Article
Spectroscopy Transmittance by LED Calibration
by Daniel Carreres-Prieto, Juan T. García, Fernando Cerdán-Cartagena and Juan Suardiaz-Muro
Sensors 2019, 19(13), 2951; https://doi.org/10.3390/s19132951 - 04 Jul 2019
Cited by 11 | Viewed by 3864
Abstract
Local administrations demand real-time and continuous pollution monitoring in sewer networks. Spectroscopy is a non-destructive technique that can be used to continuously monitor quality in sewers. Covering a wide range of wavelengths can be useful for improving pollution characterization in wastewater. Cost-effective and [...] Read more.
Local administrations demand real-time and continuous pollution monitoring in sewer networks. Spectroscopy is a non-destructive technique that can be used to continuously monitor quality in sewers. Covering a wide range of wavelengths can be useful for improving pollution characterization in wastewater. Cost-effective and in-sewer spectrophotometers would contribute to accomplishing discharge requirements. Nevertheless, most available spectrometers are based on incandescent lamps, which makes it unfeasible to place them in a sewerage network for real-time monitoring. This research work shows an innovative calibration procedure that allows (Light-Emitting Diode) LED technology to be used as a replacement for traditional incandescent lamps in the development of spectrophotometry equipment. This involves firstly obtaining transmittance values similar to those provided by incandescent lamps, without using any optical components. Secondly, this calibration process enables an increase in the range of wavelengths available (working range) through a better use of the LED’s spectral width, resulting in a significant reduction in the number of LEDs required. Thirdly, this method allows important reductions in costs, dimensions and consumptions to be achieved, making its implementation in a wide variety of environments possible. Full article
(This article belongs to the Special Issue Synthesis and Characterization of Optical Sensors for Environmental Monitoring)
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10 pages, 3028 KiB  
Article
A Highly Selective and Sensitive Fluorescent Chemosensor for Detecting Al3+ Ion in Aqueous Solution and Plant Systems
by Chia-Lin Li, Ping-Hsuan Lu, Shih-Feng Fu and An-Tai Wu
Sensors 2019, 19(3), 623; https://doi.org/10.3390/s19030623 - 01 Feb 2019
Cited by 16 | Viewed by 6009
Abstract
The solubilized form of aluminum, Al3+, is present under acid soil conditions and toxic to both animals and plants. Detecting and quantifying Al3+ is vital for both chemistry and biology. A new Schiff-based fluorescent turn-on sensor (probe L) for [...] Read more.
The solubilized form of aluminum, Al3+, is present under acid soil conditions and toxic to both animals and plants. Detecting and quantifying Al3+ is vital for both chemistry and biology. A new Schiff-based fluorescent turn-on sensor (probe L) for the selective detection of the Al3+ ion was synthesized by coupling 2-hydroxy-1-naphthaldehyde and 2-aminoisoindoline-1,3-dione, and the structure was characterized by nuclear magnetic resonance spectra. The probe L exhibited an excellent selective and sensitive response to the Al3+ ion over other metal ions in DMSO-H2O (1:9 v/v). Fluorescence quantification revealed that probe L was promising for the detection and accumulation of Al3+. Treating rice seedlings with Al3+ at 25–200 μM inhibited their growth. Al3+ treatment produced reactive oxygen species in rice roots. Practical applications of the fluorescent probe for the quantification of Al3+ in water samples and rice seedlings are demonstrated. Detecting the Al3+ ion with the probe L is easy and a potential alternative to existing analytical methods. The method can be used for detecting the Al3+ content of aqueous solution and plant systems. The novel fluorescent probe L has good potential for monitoring Al3+ content in the environment and biological systems. Full article
(This article belongs to the Special Issue Synthesis and Characterization of Optical Sensors for Environmental Monitoring)
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