scholarly journals Fluorescent chemosensors: the past, present and future

2017 ◽  
Vol 46 (23) ◽  
pp. 7105-7123 ◽  
Author(s):  
Di Wu ◽  
Adam C. Sedgwick ◽  
Thorfinnur Gunnlaugsson ◽  
Engin U. Akkaya ◽  
Juyoung Yoon ◽  
...  
Keyword(s):  
Fluorescent Chemosensors ◽  
Environmental Sciences ◽  
The Past ◽  
Neutral Analytes

Fluorescent chemosensors for ions and neutral analytes have been widely applied in many diverse fields such as biology, physiology, pharmacology, and environmental sciences.

Various Sensing Mechanisms for the Design of Naphthalimide based Chemosensors Emerging in Recent Years

2020 ◽  
Vol 13 (4) ◽  
pp. 262-289
Author(s):  
Duraisamy Udhayakumari
Keyword(s):  
Metal Ions ◽  
Intramolecular Charge Transfer ◽  
Resonance Energy Transfer ◽  
Resonance Energy ◽  
Intramolecular Proton Transfer ◽  
Biological Applications ◽  
Fluorescent Chemosensors ◽  
The Past ◽  
Photo Induced Electron Transfer ◽  
Displacement Approach

In the design of novel fluorescent chemosensors, investigation of new sensing mechanisms between recognition and signal reporting units is of increasing interest. In recent years, a smart chemosensor probe containing a 1,8-naphthalimide moiety could be developed as a fluorescent and colorimetric sensor for toxic anions, metal ions, biomolecules, nitroaromatics, and acids and be further applied to monitor the relevant biological applications. In this field, several problems and challenges still exist. This critical review is mainly focused on various sensing mechanisms that have emerged in the past few years, such as Photo-Induced Electron Transfer (PET), Intramolecular Charge Transfer (ICT), Fluorescence Resonance Energy Transfer (FRET), Excited-State Intramolecular Proton Transfer (ESIPT), hydrogen bonding and displacement approach. The review concludes with some current and future perspectives, including the use of the naphthalimides for sensing anions, metal ions, biomolecules, nitroaromatics and acids and their potential uses in various fields.

scholarly journals Fluorescent Chemosensors for Ion and Molecule Recognition: The Next Chapter

2021 ◽  
Vol 2 ◽  
Author(s):  
Kai-Cheng Yan ◽  
Axel Steinbrueck ◽  
Adam C. Sedgwick ◽  
Tony D. James
Keyword(s):  
State Of The Art ◽  
Fluorescent Chemosensors ◽  
Distant Future ◽  
The Past ◽  
Current Trends ◽  
Current State ◽  
Future Challenges ◽  
Molecule Recognition

Over the past 30 years fluorescent chemosensors have evolved to incorporate many optical-based modalities and strategies. In this perspective we seek to highlight the current state of the art as well as provide our viewpoint on the most significant future challenges remaining in the area. To underscore current trends in the field and to facilitate understanding of the area, we provide the reader with appropriate contemporary examples. We then conclude with our thoughts on the most probable directions that chemosensor development will take in the not-too-distant future.

scholarly journals An uracil-linked hydroxyflavone probe for the recognition of ATP

2018 ◽  
Vol 14 ◽  
pp. 747-755 ◽  
Author(s):  
Márton Bojtár ◽  
Péter Zoltán Janzsó-Berend ◽  
Dávid Mester ◽  
Dóra Hessz ◽  
Mihály Kállay ◽  
...  
Keyword(s):  
Fluorescence Spectroscopy ◽  
Electrostatic Interactions ◽  
Theoretical Calculations ◽  
Structural Similarity ◽  
Living Systems ◽  
Selective Detection ◽  
Complex Structures ◽  
Fluorescent Chemosensors ◽  
The Past ◽  
Physiological Processes

Background: Nucleotides are essential molecules in living systems due to their paramount importance in various physiological processes. In the past years, numerous attempts were made to selectively recognize and detect these analytes, especially ATP using small-molecule fluorescent chemosensors. Despite the various solutions, the selective detection of ATP is still challenging due to the structural similarity of various nucleotides. In this paper, we report the conjugation of a uracil nucleobase to the known 4’-dimethylamino-hydroxyflavone fluorophore. Results: The complexation of this scaffold with ATP is already known. The complex is held together by stacking and electrostatic interactions. To achieve multi-point recognition, we designed the uracil-appended version of this probe to include complementary base-pairing interactions. The theoretical calculations revealed the availability of multiple complex structures. The synthesis was performed using click chemistry and the nucleotide recognition properties of the probe were evaluated using fluorescence spectroscopy. Conclusions: The first, uracil-containing fluorescent ATP probe based on a hydroxyflavone fluorophore was synthesized and evaluated. A selective complexation with ATP was observed and a ratiometric response in the excitation spectrum.

scholarly journals Four Generations in Data Engineering for Data Science

2021 ◽  
Author(s):  
Meike Klettke ◽  
Uta Störl
Keyword(s):  
Data Science ◽  
Data Curation ◽  
Data Driven ◽  
Environmental Sciences ◽  
Scientific Methods ◽  
Domain Experts ◽  
The Past ◽  
Research Fields ◽  
Data Engineering ◽  
The Moment

AbstractData-driven methods and data science are important scientific methods in many research fields. All data science approaches require professional data engineering components. At the moment, computer science experts are needed for solving these data engineering tasks. Simultaneously, scientists from many fields (like natural sciences, medicine, environmental sciences, and engineering) want to analyse their data autonomously. The arising task for data engineering is the development of tools that can support an automated data curation and are utilisable for domain experts. In this article, we will introduce four generations of data engineering approaches classifying the data engineering technologies of the past and presence. We will show which data engineering tools are needed for the scientific landscape of the next decade.

scholarly journals Hybrid Encounters in Reconciliation Ecology

2016 ◽  
Vol 20 (3) ◽  
pp. 238-250
Author(s):  
Jeremy Kidwell
Keyword(s):  
Past History ◽  
Past Century ◽  
The Novel ◽  
Environmental Sciences ◽  
Reconciliation Ecology ◽  
The Past ◽  
History Of ◽  
Human And Nature ◽  
Viable Model ◽  
Strategy I

Over the past century, environmental scientists have developed a range of conservation approaches. Each of these, from management to restoration has embedded within it certain dualisms which create exclusive spaces or agencies for “human” and “nature.” I begin with a critique of these binaries as they occur in philosopher, Florence R. Kluckhohn’s influential model and in more recent narratives about the “Anthropocene,” and then turn to examine some of the novel features of “reconciliation ecology” as it has recently been deployed in the environmental sciences. Though this model is beginning to see wider use by scientists, it has not yet been explored within a religious framework. Taking up Miroslav Volf’s suggestion that reconciliation involves a “double strategy” I highlight ways that reconciliation can (1) provide a viable model for promoting an “embrace” of the other and (2) better integrate the past history of negative human biotic impacts.

Review on Calixarene Fluorescent Chemosensor Agents for Various Analytes

2021 ◽  
Author(s):  
Krisfian Tata Aneka Priyangga ◽  
Yehezkiel Steven Kurniawan ◽  
Keisuke Ohto ◽  
Jumina Jumina
Keyword(s):  
Heavy Metal ◽  
Metal Ions ◽  
Environmental Samples ◽  
Heavy Metal Ions ◽  
The Other ◽  
Fluorescent Chemosensors ◽  
The Past ◽  
The World ◽  
Living Organisms ◽  
Detection And Quantification

Calixarenes are well-known supramolecular host molecules with versatile applications. Over the past decades, hundreds of selective and sensitive detections of several analytes have been reported by employing calixarenes as the chemosensor agent. The detection and quantification of metal ions and anions are crucial as heavy metal ions are harmful to living organisms, while monitoring anions is pivotal in the environmental samples. On the other hand, detecting and quantifying biomolecules and neutral molecules are critical due to their irreplaceable role in human health. In this review, we summarized the application of calixarenes as the supramolecular chemosensor agent for detecting metal ions, anions, biomolecules, and neutral molecules through fluorescent spectroscopy to give brief information on the design and development of the chemosensor field. This review updates the world with the application of calixarene derivatives as fluorescent chemosensors and challenges researchers to design and develop better chemosensor agents in the future.

scholarly journals New View of Expanding Perspectives in the Geosciences

Eos ◽  
2021 ◽  
Vol 102 ◽  
Author(s):  
Humberto Basilio
Keyword(s):  
Environmental Sciences ◽  
Ethnic Representation ◽  
The Past ◽  
Future Challenges ◽  
New View

Earth and environmental sciences have some of the least diverse racial and ethnic representation in academia. To face profound future challenges, the fields need to address the inequities of the past and how they inform the present.

scholarly journals Forest History—New Perspectives for an Old Discipline

2021 ◽  
Vol 9 ◽  
Author(s):  
Bernhard Muigg ◽  
Willy Tegel
Keyword(s):  
Theoretical Basis ◽  
Resource Scarcity ◽  
Scientific Field ◽  
Forest History ◽  
Environmental Sciences ◽  
The Past ◽  
The Subject ◽  
Interdisciplinary Exchange ◽  
Definition Of ◽  
Over Time

The scientific field of forest history studies the development of woodlands and their interrelationship with past human societies. During the last decades, the subject has experienced a constant decrease of importance, reflected in the loss of representation in most universities. After 200 years of existence, an insufficient theoretical basis and the prevalence of bibliographical and institutional studies on post-medieval periods have isolated the field and hindered interdisciplinary exchange. Here we present possible new perspectives, proposing wider methodological, chronological, thematic, and geographical areas of focus. This paper summarizes the development of the field over time and recommends content enhancement, providing a specific example of application from Roman France. Furthermore, we introduce a topical definition of forest history. Following the lead of other fields of the humanities and environmental sciences focussing on the past, forest history has to adapt to using other available archives in addition to historical written sources. In particular, historical and archeological timber as well as pollen are essential sources for the study of past forests. Research into forest history can substantially add to our understanding of relevant issues like societal responses to climate change and resource scarcity in the past and contribute to future scenarios of sustainability.

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