Search
Search Results
-
Boron difluoride modified zinc metal–organic framework-based “off–on” fluorescence sensor for tetracycline and Al3+ detection
A novel fluorescence “off–on” probe was developed using a boron difluoride–modified zinc metal–organic framework (Zn-MOF3) for sensitive...
-
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...
-
Facile preparation of S, N co-doped carbon dots and the application as an “on-off-on” fluorescent sensor for detecting Cr(VI) and ascorbic acid/sulfide
Recently, syntheses of various kinds of carbon dots (CDs) and their application as ions sensing probes, as well as the relative mechanism, have...
-
Carbon Dots as “On–Off–On” Fluorescence Sensors for Selective and Consecutive Detection of 4-Nitrophenol and Cerium(IV) in Water Samples
An “on–off–on” fluorescence sensor was designed for rapidly and consecutively detecting 4-nitrophenol and cerium(IV) without the use of any labeling...
-
BSA-carbon dots a promising “off–on” fluorescence probe for detecting glyphosate residues in agricultural products
The widespread and extensive use of glyphosate in agriculture has raised concerns about its potential impact on the quality and safety of...
-
Design of cobalt-doped graphene quantum dot-decorated vanadium pentoxide nanosheet-based Off–On fluorescent sensor system for tiopronin sensing
Despite the high medicinal value of tiopronin, there are substantial adverse effects such as yellow skin, yellow eyes, muscle aches, etc. Therefore,...
-
Development of a Gold Nanoparticle-catalyzed “Off–On” Fluorescence Probe for Determination of Uric Acid in Urine Samples
In the current work, a fluorescence “off–on” system was developed and validated for uric acid analysis in urine, based on fluorescein, H 2 O 2 and gold...
-
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...
-
Detection of mercury(II) and glutathione using a carbon dots-based “off-on” fluorescent sensor and the construction of a logic gate
In this paper, we proposed an efficient method for mercury(II) and glutathione detection using a fluorescent nanoprobe as a sensor. Carbon dots were...
-
A green “off–on” fluorescent sensor to detect Fe3+ and ATP using synthesized carbon dots from Rosehip
A newly prepared rosehip-derived carbon dots (CDs) have been demonstrated as a “Turn off–on” fluorescent sensor to detect ferric ion (Fe 3+ ) and...
-
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...
-
A signal “on–off-on”-type electrochemiluminescence aptamer sensor for detection of sulfadimethoxine based on Ru@Zn-oxalate MOF composites
An “on–off-on”-type electrochemiluminescence (ECL) aptamer sensor based on Ru@Zn-oxalate metal–organic framework (MOF) composites is constructed for...
-
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...
-
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...
-
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...
-
Coumarin derivative-functionalized nanoporous silica as an on–off fluorescent sensor for detecting Fe3+ and Hg2+ ions: a circuit logic gate
A highly efficient fluorescent sensor (S-DAC) was easily created by functionalizing the SBA-15 surface with...
-
Synthesis of carbon dots and their application as a turn off–on fluorescent sensor for trace Cu2+ and phenylalanine
Carbon dots (CDs) have drawn increasing interest due to their unique optical properties and promising application in various fields. In this study,...
-
Biomass-derived carbon quantum dot: “On–off-on” fluorescent sensor for rapid detection of multi-metal ions and green photocatalytic CO2 reduction in water
We have developed carbon quantum dots (CQDs) with excellent photoluminescence (PL) properties from macaúba ( Acrocomia aculeate ) fibers; a widely...
-
A Silver Nanoprism-Based “Off-On” Sensor for Phenytoin Determination in Exhaled Breath Condensate
The present research proposed the use of silver nanoprism in a fluorescent system for phenytoin determination in exhaled breath condensate samples....
-
A nano-molar sensitive fluorescence sensor for cucurbit[7]uril
Cucurbit[ n ]urils (CB[ n ], n = 5–8) are the most important class of host molecules that are widely applied in various important applications. Until...
