Results 101 to 110 of about 36,603 (318)

A selective fluorescent chemosensor for phosphoserine

open access: yesOrganic & Biomolecular Chemistry, 2013
A fluorescent chemosensor for the detection of phosphoserine is reported. The ditopic sensor features a phosphate-coordinating zinc(II)-dipicolylamine (Zn(2+)-DPA) unit tethered to an amine-binding coumarin aldehyde fluorophore. With phosphoserine, the sensor demonstrates a 30-fold fluorescence enhancement under buffered aqueous conditions.
Chad M, Cooley   +4 more
openaire   +3 more sources

Chemosensors for Ion Detection

open access: yesChemosensors, 2023
The advancement in chemosensory research towards the ionic species quantitation becomes vital to securing the environment for the future [...]
openaire   +2 more sources

One‐Step Synthesis of 4‐Methylimidazole Decorated Carbon Dots for Detection of Heavy Metal Contaminants via Enhanced Fluorescence Mechanism

open access: yesNano Select, Volume 7, Issue 5, May 2026.
A one‐step hydrothermal synthesis yields 4‐methylimidazole functionalized carbon dots (CDs) that exhibit fluorescence enhancement upon interaction with cadmium and mercury ions. Spectroscopic and optical analyses reveal that non‐covalent electrostatic association between 4‐MI and the CDs' surface regulates selective metal‐ion recognition and ...
Tak H. Kim   +4 more
wiley   +1 more source

Sensing study of quinoxaline analogues with theoretical calculation, single-crystal X-ray structure and real application in commercial fruit juices [PDF]

open access: yesRoyal Society Open Science, 2018
Single-crystal X-ray structures of dimeric quinoxaline aldehyde (QA), quinoxaline dihydrazone (DHQ) and HQNM (Goswami S et al. 2013 Tetrahedron Lett. 54, 5075–5077. (doi:10.1016/j.tetlet.2013.07.051); Goswami S et al. 2014 RSC Adv. 4, 20 922–20 926. (doi:
Shampa Chakraborty   +3 more
doaj   +1 more source

Ferrocene‐Based Sensors for Green Analytical Applications in Environmental, Biomedical, Industrial, and Food Monitoring

open access: yesChemistryOpen, Volume 15, Issue 5, May 2026.
Ferrocene derivatives represent a transformative class of molecular sensors, combining exceptional electrochemical stability with tunable redox characteristics that enable precise detection across diverse analytical challenges in environmental, medical, and industrial applications.
Ala'a Al‐Akhras   +6 more
wiley   +1 more source

Monitoring Biogenic Amines: Comparative Assessment of Detection Methods for Key Market Marine and Freshwater Species

open access: yesJournal of Food Science, Volume 91, Issue 5, May 2026.
ABSTRACT Biogenic amines, primarily histamine, cadaverine, and putrescine, are important indicators of microbial spoilage and potential health risks. This review summarizes established and novel analytical methods for quantitatively determining biogenic amines in fish and fish products, along with their limits of detection in these complex matrices ...
Lasse Petersen
wiley   +1 more source

Heterocyclic dicyanovinyl derivatives: synthesis and evaluation of the chemosensory ability in aqueous solution [PDF]

open access: yes, 2016
Two novel dicyanovinyl derivatives 3a-b were synthesized in moderate to good yields through a Knoevenagel reaction of the corresponding aldehyde precursors and malononitrile.
Costa, Susana P. G.   +2 more
core   +1 more source

Effect of Micellar Encapsulation on the Luminescent Properties of Triphenylene N‐Heterocyclic Carbene Gold(I) Complexes

open access: yesChemistryEurope, Volume 4, Issue 4, April 2026.
Gold(I) N‐heterocyclic carbene (NHC) complexes confined in micelles reveal tunable fluorescence–phosphorescence, showcasing environment controlled luminescence. The photophysical properties of gold(I) N‐heterocyclic carbene (NHC) complexes incorporating 2‐ethynyltriphenylene chromophores were investigated in solution and in confined micellar ...
Anyie P. Atencio   +6 more
wiley   +1 more source

Sensory Polymers: Trends, Challenges, and Prospects Ahead

open access: yesSensors
In recent years, sensory polymers have evolved significantly, emerging as versatile and cost-effective materials valued for their flexibility and lightweight nature.
Cintia Virumbrales   +4 more
doaj   +1 more source

Synthesis and evaluation of bipendant-armed (oligo)thiophene crown ether derivatives as new chemical sensors [PDF]

open access: yes, 2008
Three new (oligo)thiophene bipendant-armed ligands 2a-c, derived from 2-(aminomethyl)-15-crown-5, have been synthesized and characterized. Compounds 2a-c were prepared by reductive amination of the corresponding macrocycle with formyl thiophene ...
Batista, Rosa Maria Ferreira   +4 more
core   +1 more source

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