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Chemosensors
Special Issues
Luminescent Metal Complexes as Sensors
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Luminescent Metal Complexes as Sensors

A special issue of Chemosensors (ISSN 2227-9040). This special issue belongs to the section "Optical Chemical Sensors".

Deadline for manuscript submissions: closed (28 February 2021) | Viewed by 5510

Special Issue Editors

Dr. Moustafa Gabr

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Guest Editor
Department of Radiology, Stanford University, Stanford, CA 94305, USA
Interests: molecular imaging; chemical biology; bio-inorganic chemistry; medicinal chemistry
Dr. Koushambi Mitra

E-Mail Website
Guest Editor
Department of Chemistry and Biochemistry, The University of Texas at Dallas, Richardson, TX 75080, USA
Interests: Inorganic Chemistry, Organic Synthesis, Photodynamic Therapy, Cancer Drug Delivery, Fluorescent Sensors, Cellular Imaging
Dr. Jonas Bucevicius

E-Mail Website
Guest Editor
Department of NanoBiophotonics, Max Planck Institute for Biophysical Chemistry, Am Fassberg 11, 37077 Göttingen, Germany
Interests: Organic Synthesis, Fluorescent dyes (and their applications), Small-Molecule Sensors, Photophysics and Photochemistry, Nanoscopy

Special Issue Information

Dear colleagues,

Luminescent metal complexes display intriguing photophysical and photochemical properties and are garnering interest as versatile tools in the multidisciplinary field of chemistry and chemical biology. The desirable luminescent features of metal complexes such as long-lived emission, high photostability, large Stokes shifts, and sensitivity to the surrounding microenvironment render them well-suited for use in labeling, imaging, or sensing of small bio-analytes, as well as biomacromolecules such as proteins, enzymes, and oligonucleotides. The utility of metal complexes as luminescent probes can provide fundamental insight into mechanistic features of cellular events or function as diagnostic agents in biomedical applications. Additionally, luminescent probes for specific biocatalytic transformations are important bioanalytical tools for the detection and quantification of enzymatic activity. Elevated or reduced levels of specific enzyme activity often serve as biomarkers of human disease. Additionally, such metal complexes often possess desirable intrinsic therapeutic properties (e.g., anticancer, antibacterial, and antihelminthic activities), therefore creating opportunities for the potential development of novel theranostic agents.

The objective of this Special Issue is to provide a forum to present and collate significant research involving the application of luminescent inorganic and organometallic metal complexes as probes in molecular imaging. In addition, research related to bioactive luminescent metal complexes for dual monitoring and therapy of human diseases will be included.

Potential topics include but are not limited to the following:

  • Development of luminescent metal complexes for DNA and RNA structures;
  • Design of metal complexes with emission in the near-infrared (NIR) region;
  • Luminescent metal complexes with applications in diagnosis of neurodegenerative diseases such as imaging of amyloid and tau proteins;
  • Tuning luminescent properties of metal complexes for imaging applications;
  • Bioactive luminescent metal complexes for biomedical applications;
  • Membrane permeable luminescent metal complexes for imaging applications;
  • Live cell imaging using phosphorescent metal complexes;
  • Design of metal complexes as sensors for biomacromolecules;
  • Theranostics based on metal complexes for cancer therapy;
  • Development of metal complexes as sensors of anions and cations;
  • Metal-organic frameworks as biosensors;
  • Luminescent metal complexes with aggregation-induced emission (AIE);
  • Phosphorescent metal complexes as biosensors for enzymatic activity;
  • Design of luminescent metal complexes for applications in photodynamic therapy.
Dr. Moustafa Gabr
Dr. Koushambi Mitra
Dr. Jonas Bucevicius
Guest Editors

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. Chemosensors 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 2700 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.

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11 pages, 3591 KiB  
Article
Highly Selective Recognition of Pyrophosphate by a Novel Coumarin-Iron (III) Complex and the Application in Living Cells
by Wei Wang, Hongren Zhao, Bing Zhao, Huimin Liu, Qinglei Liu and Yan Gao
Chemosensors 2021, 9(3), 48; https://0-doi-org.brum.beds.ac.uk/10.3390/chemosensors9030048 - 28 Feb 2021
Cited by 8 | Viewed by 2171
Abstract
In this paper, a novel NL-Fe3+ ensemble was designed as a fluorescent chemosensor for highly selective detection of pyrophosphate (PPi) in DMSO/H2O (2:8/v:v, pH = 7.2) solution and living cells. NL showed a strong affinity [...] Read more.
In this paper, a novel NL-Fe3+ ensemble was designed as a fluorescent chemosensor for highly selective detection of pyrophosphate (PPi) in DMSO/H2O (2:8/v:v, pH = 7.2) solution and living cells. NL showed a strong affinity for Fe3+ and was accompanied by obvious fluorescence quenching. Upon the addition of PPi to the generated NL-Fe3+ ensemble, the fluorescence and absorption spectra were recovered completely. Spectroscopic investigation showed that the interference provoked by common anions such as adenosine-triphosphate (ATP), adenosine diphosphate (ADP), and phosphates (Pi) can be ignored. The detection limit of NL-Fe3+ to PPi was calculated to be 1.45 × 10−8 M. Intracellular imaging showed that NL-Fe3+ has good membrane permeability and could be used for the detection of PPi in living cells. A B3LYP/6-31G(d,p) basis set was used to optimize NL and NL-Fe3+ complex. Full article
(This article belongs to the Special Issue Luminescent Metal Complexes as Sensors)
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Review

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22 pages, 4877 KiB  
Review
Photoluminescent Metal Complexes and Materials as Temperature Sensors—An Introductory Review
by John W. Kenney III and Jae Joon Lee
Chemosensors 2021, 9(5), 109; https://0-doi-org.brum.beds.ac.uk/10.3390/chemosensors9050109 - 14 May 2021
Cited by 8 | Viewed by 2664
Abstract
Temperature is a fundamental physical quantity whose accurate measurement is of critical importance in virtually every area of science, engineering, and biomedicine. Temperature can be measured in many ways. In this pedagogically focused review, we briefly discuss various standard contact thermometry measurement techniques. [...] Read more.
Temperature is a fundamental physical quantity whose accurate measurement is of critical importance in virtually every area of science, engineering, and biomedicine. Temperature can be measured in many ways. In this pedagogically focused review, we briefly discuss various standard contact thermometry measurement techniques. We introduce and touch upon the necessity of non-contact thermometry, particularly for systems in extreme environments and/or in rapid motion, and how luminescence thermometry can be a solution to this need. We review the various aspects of luminescence thermometry, including different types of luminescence measurements and the numerous materials used as luminescence sensors. We end the article by highlighting other physical quantities that can be measured by luminescence (e.g., pressure, electric field strength, magnetic field strength), and provide a brief overview of applications of luminescence thermometry in biomedicine. Full article
(This article belongs to the Special Issue Luminescent Metal Complexes as Sensors)
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