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The on–off-on Fluorescence Sensor of Hollow Carbon Dots for Detecting Hg2+ and Ascorbic Acid
Carbon dots (CDs) have excellent fluorescence properties and can be used in many research fields. In this paper, carbon dots were prepared by...
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An “on-off-on” Fluorescent Sensor Based on Carbon Dots for the Detection of Au (III) and Creatinine
The present study proposes a new approach for detecting trace amounts of creatinine (Cre) through the utilization of a fluorescence sensor system...
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Nitrogen and Sulfur co-doped Carbon dots as an “on-off-on” Fluorescent Sensor for the Detection of Hg2+ and Ampicillin
Herein, a fluorescent “on-off-on” nanosensor based on N,S-CDs was developed for highly precise and sensitive recognition of Hg 2+ and ampicillin...
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Effect of Chloride, Sulfate, and Ferrate Salts on Electronic Energy Levels of Anthracene Proving it a Potential Candidate as an ON and ON–OFF UV–Vis Sensor
Anthracene molecule possesses remarkable optical activity and till today this molecule is of special interest of scientists. Present study is focused...
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On-Off-On Fluorometric Detection of Hg(II) and L-Cysteine Using Red Emissive Nitrogen-Doped Carbon Dots for Environmental and Clinical Sample Analysis
This research introduces a novel fluorescence sensor ‘on-off-on’ employing nitrogen-doped carbon dots (N-CDs) with an ‘on-off-on’ mechanism for the...
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Ln Based Metal-organic Framework for Fluorescence “Turn Off–On” Sensing of Hg2+
A highly luminescent Ln-MOF [La 3 (NDC) 4 (DMF) 3 (H 2 O) 4 ] n , (NDC = 2, 6 naphthalen dicarboxylic acid) was designed and synthesized. The structure was...
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A Fluorescence Turn On–off-on Method for Sensitive Detection of Sn2+ and Glycine Using Waste Eggshell Membrane Derived Carbon Nanodots as Probe
Changes in Sn 2+ and glycine levels are relevant to many important physiological procedures in human health. However, investigation of their...
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Fluorescence Sensor for Zearalenone Detection Based on Oxidized Single-walled Carbon Nanohorns/N-doped Carbon Quantum Dots-aptamer
Zearalenone (ZEN), a resorcinolactone toxin, which has been a potential threat to agricultural production and human health. In this study, a sample...
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Rapid, Sensitive, and Selective "ON–OFF" Detection of Fe3+ Ions Using Novel Acetalophanes and Their Applications in Real Samples
Three novel acetalophanes 1a-c have been designed, synthesized and characterized. The receptors 1b-c , featuring bulky anthracene groups, displayed...
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"Off/On” Fluorescent Probe based on Aggregation-Induced Quenching of ZnO-Quantum dots for Determination of Ara-C: Pharmacokinetic Applications, Adsorption Kinetics & Green Profile Assessment
Herein, a turn “Off/On” fluorescence probe based on ZnO quantum dots (ZnO-QDs) has been proposed and successfully utilized for the determination of...
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Methyl viologen induced fluorescence quenching of CdTe quantum dots for highly sensitive and selective “off-on” sensing of ascorbic acid through redox reaction
A turn-on fluorescent sensor based on CdTe quantum dots (QDs) is designed for highly sensitive and selective ascorbic acid (AA) detection. CdTe shows...
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Ratiometric Sensing of Azithromycin and Sulfide Using Dual Emissive Carbon Dots: A Turn On-Off-On Approach
A novel ratiometric fluorescence probe was developed for the determination of azithromycin (AZM) and sulfide ions based on the differential...
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Dual Fluorimetric Sensor for Tandem Detection of Cadmium and Cysteine: An Approach for Designing a Molecular Keypad Lock System
A fluorimetric sensor for dual and sensitive detection of Cd 2+ ion and Cysteine (based on 2-picolylamine platform) was developed.The sensor was...
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A Sensor for the Detection of Cr (III) and Fe (III) Ions Based on “Turn Off” Mechanism of Fluorescence with Computational Studies
A new and innovative fluorescent structure was constructed on Cyclotriveratrylene affiliated to Dansyl chloride (DNSC) and was used to detect Cr...
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A Turn Off Fluorescence Probe Based on Carbon Dots for Highly Sensitive Detection of BRCA1 Gene in Real Samples and Cellular Imaging
In this research, DNA-modified carbon dots (CDs) were exploited to construct a fluorescence assay for breast cancer genes (BRCA1, a potential marker...
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A New «off-on» Fluorescence Zinc Ion Sensors Based on Iodo- and Bromosubstituted Dipyrromethenes
Monoiodo- and dibromsubstituted dipyrromethenes HL 1 – HL 3 were described as a highly sensitive and selective «Off-On» fluorescent chemosensor for Zn 2+ ...
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Highly Sensitive ‘on–off’ Pyrene Based AIEgen for Selective Sensing of Copper (II) Ions in Aqueous Media
A Fluorescent chemosensor based on pyrene scaffold, 5-diethylamino-2-(pyren-1-yliminomethyl)-phenol (PDS) is synthesized using condensation method....
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Highly Selective Turn-on Fluorescence Sensor for Cd2+ Ions by Tripodal Organic Ligand
Organic fluorescence sensor for selectively detecting and quantifying toxic heavy metal ions has received significant interest due to their...
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Application of CdTe/ZnS Core/Shell Quantum Dots as on Fluorescence Sensor for Detection of Gamma Rays
Gamma rays are a type of ionizing radiation that are extremely hazardous and dangerous for humans and the environment. The fluorescence method is a...
