Articles with "fluorescence turn" as a keyword



Photo by robbie36 from unsplash

Fluorescence turn-on detection of alkaline phosphatase activity based on controlled release of PEI-capped Cu nanoclusters from MnO2 nanosheets

Sign Up to like & get
recommendations!
Published in 2017 at "Analytical and Bioanalytical Chemistry"

DOI: 10.1007/s00216-017-0420-9

Abstract: A fluorescence turn-on assay for alkaline phosphatase (ALP) activity is developed through the controlled release of polyethyleneimine-capped copper nanoclusters (PEI-capped CuNCs) from the MnO2 nanosheets. In an aqueous solution, the positively charged PEI-capped CuNCs could… read more here.

Keywords: activity; fluorescence turn; mno2 nanosheets; pei capped ... See more keywords
Photo by weanimalsmedia from unsplash

Direct identification of HMX via guest-induced fluorescence turn-on of molecular cage

Sign Up to like & get
recommendations!
Published in 2021 at "Chinese Chemical Letters"

DOI: 10.1016/j.cclet.2021.05.051

Abstract: ABSTRACT Octahydro-1,3,5,7-tetranitro-1,3,5,7-tetrazocine (HMX) is one of the most widely used powerful explosives. The direct and selective detection of HMX, without the requirement of specialized equipment, remains a great challenge due to its extremely low volatility,… read more here.

Keywords: direct identification; hmx; cage; identification hmx ... See more keywords
Photo from wikipedia

A novel nitroethylene-based porphyrin as a NIR fluorescence turn-on probe for biothiols based on the Michael addition reaction

Sign Up to like & get
recommendations!
Published in 2018 at "Dyes and Pigments"

DOI: 10.1016/j.dyepig.2017.09.046

Abstract: Abstract Biothiols, such as cysteine (Cys), homocysteine (Hcy), and glutathione (GSH), play essential roles in many physiological and pathological processes. In this work, three porphyrin derivatives, XQ1 , XQ2 and XQ3 , were synthesized by… read more here.

Keywords: addition; fluorescence; michael addition; based michael ... See more keywords
Photo by katiemoum from unsplash

Conditional mechanochromic fluorescence with turn-on response: A new way to encrypt and decrypt binary data

Sign Up to like & get
recommendations!
Published in 2018 at "Dyes and Pigments"

DOI: 10.1016/j.dyepig.2018.06.037

Abstract: Abstract We report the synthesis and photoluminescence (PL) behavior of a new molecular system, which is composed of three positional isomers. They exhibit isomeric effects on both aggregation-induced emission (AIE) and intramolecular charge transfer (ICT)… read more here.

Keywords: fluorescence; mechanochromic fluorescence; conditional mechanochromic; mechanical force ... See more keywords
Photo from wikipedia

A colorimetric and fluorescence turn-on probe for the detection of ascorbic acid in living cells and beverages.

Sign Up to like & get
recommendations!
Published in 2021 at "Food chemistry"

DOI: 10.1016/j.foodchem.2021.130325

Abstract: A colorimetric and fluorescence turn-on dual-signal assay was developed for the determination of ascorbic acid (AA). Because the ultraviolet absorption of the oxidized 3,3',5,5'-tetramethylbenzidine (oxTMB) overlapped with the fluorescence emission of glutathione stabilized Au nanoclusters… read more here.

Keywords: fluorescence; ascorbic acid; cells beverages; fluorescence turn ... See more keywords
Photo from wikipedia

A fluorescence "turn-on" sensor for detecting hydrazine in environment

Sign Up to like & get
recommendations!
Published in 2020 at "Microchemical Journal"

DOI: 10.1016/j.microc.2019.104376

Abstract: Abstract Hydrazine (N2H4) has been classified as an environmental contaminant and human carcinogen owing to its high toxicity. Being exposed to high levels of hydrazine can cause irreversible damage to human bodies. Hence, it is… read more here.

Keywords: turn sensor; detecting hydrazine; fluorescence; sensor detecting ... See more keywords
Photo from archive.org

Novel highly selective and sensitive fluorescent sensor for copper detection based on N-acylhydrazone acridone derivative

Sign Up to like & get
recommendations!
Published in 2020 at "Journal of Molecular Structure"

DOI: 10.1016/j.molstruc.2019.126990

Abstract: Abstract A new N-acylhydrazone based on acridone (S1) was synthesized by Schiff base condensation of 2-(9-oxoacridin-10-yl)acetohydrazide and salicylaldehyde and studied as selective fluorescence turn-off sensing towards Cu2+ ions in aqueous media. S1 demonstrated fluorescence turn-off… read more here.

Keywords: detection; fluorescence; novel highly; towards cu2 ... See more keywords
Photo by paipai90 from unsplash

Human Serum Albumin-Occupying-Based Fluorescence Turn-On Analysis of Anti-epileptic Drug Tiagabine Hydrochloride.

Sign Up to like & get
recommendations!
Published in 2020 at "Analytical chemistry"

DOI: 10.1021/acs.analchem.9b03507

Abstract: Tiagabine hydrochloride (TGB) is a clinically frequently-used drug for anti-convulsion and reducing epileptic frequency. Over administration of TGB could bring about adverse effects, such as speech disorder, depression and even suicidal tendencies. Therefore, accessible and… read more here.

Keywords: tgb; drug; human serum; fluorescence turn ... See more keywords
Photo from wikipedia

N-Doped Graphene Quantum Dots-Decorated V2O5 Nanosheet for Fluorescence Turn Off-On Detection of Cysteine.

Sign Up to like & get
recommendations!
Published in 2018 at "ACS applied materials & interfaces"

DOI: 10.1021/acsami.7b15120

Abstract: The development of a fast-response sensing technique for detection of cysteine can provide an analytical platform for prescreening of disease. Herein, we have developed a fluorescence turn off-on fluorescence sensing platform by combining nitrogen-doped graphene… read more here.

Keywords: detection cysteine; fluorescence; cysteine; platform ... See more keywords
Photo by julee_juu from unsplash

Investigation of the Fluorescence Turn-off Mechanism, Genome, Molecular Docking In Silico and In Vitro Studies of 2-Acetyl-3H-benzo[f]chromen-3-one

Sign Up to like & get
recommendations!
Published in 2022 at "ACS Omega"

DOI: 10.1021/acsomega.2c02424

Abstract: The present study harnesses fluorescence quenching between a nonfluorescent aniline and fluorophore 2-acetyl-3H-benzo[f]chromen-3-one [2AHBC] in binary solvent mixtures of acetonitrile and 1,4-dioxane at room temperature and explores the fluorophore as an antimicrobial material. Our findings… read more here.

Keywords: fluorescence turn; chromen one; benzo chromen; investigation fluorescence ... See more keywords
Photo from wikipedia

Fluorescence “Turn-On” Indicator Displacement Assay-Based Sensing of Nitroexplosive 2,4,6-Trinitrophenol in Aqueous Media via a Polyelectrolyte and Dye Complex

Sign Up to like & get
recommendations!
Published in 2017 at "ACS Omega"

DOI: 10.1021/acsomega.7b00765

Abstract: A water-soluble nonfluorescent cationic conjugated polyelectrolyte poly(1,1′-((1,4-phenylenebis(oxy))bis(propane-3,1-diyl))bis(pyridin-1-ium)bromide) (PPPy) was specifically synthesized via an economical method of oxidative coupling polymerization in high yields. PPPy selectively recognized nitroexplosive picric acid (PA) by fluorescence “turn-on” in the presence… read more here.

Keywords: indicator displacement; displacement assay; fluorescence; fluorescence turn ... See more keywords