A5028451187- Molecular Sensors and Ion Detection
- Supramolecular Chemistry and Complexes
- Advanced Thermoelectric Materials and Devices
- Hybrid Renewable Energy Systems
- Energy and Environment Impacts
- Lipid Membrane Structure and Behavior
- Analytical Chemistry and Sensors
- Molecular Junctions and Nanostructures
- Porphyrin and Phthalocyanine Chemistry
- Spectroscopy and Quantum Chemical Studies
- Energy Harvesting in Wireless Networks
- Innovative Energy Harvesting Technologies
- Advanced Battery Technologies Research
- Crystallization and Solubility Studies
- Electrochemical Analysis and Applications
- Mass Spectrometry Techniques and Applications
- Luminescence and Fluorescent Materials
- DNA and Nucleic Acid Chemistry
- Advanced Chemical Sensor Technologies
- X-ray Diffraction in Crystallography
- RNA Interference and Gene Delivery
- Advanced biosensing and bioanalysis techniques
- Identification and Quantification in Food
- Alzheimer's disease research and treatments
- Heat Transfer and Optimization
Trinity College Dublin
2012-2022
Technological University Dublin
2020-2022
Tallaght University Hospital
2010-2015
Clarity Centre for Sensor Web Technologies
2001
University College Cork
1990-1995
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTSynthesis, x-ray crystal structures, and cation-binding properties of alkyl calixaryl esters ketones, a new family macrocyclic molecular receptorsFrancoise Arnaud-Neu, Elizabeth M. Collins, Mary Deasy, George Ferguson, Stephen J. Harris, Branko Kaitner, Alan Lough, Anthony McKervey, Marques, Cite this: Am. Chem. Soc. 1989, 111, 23, 8681–8691Publication Date (Print):November 1, 1989Publication History Published online1 May 2002Published inissue 1...
Sodium-selective electrodes were prepared with polymeric membranes containing ester and ketone derivatives of p-tert-butyl calix[4]arene. The 2-nitrophenyl octyl ether as the solvent mediator potassium tetrakis(p-chlorophenyl)borate ion exchanger in a poly(vinyl chloride) matrix. Several ligands examined produced near-Nernstian slopes, detection limits ca. 10–5M for sodium excellent selectivity against range common cations.
The cation complexing abilities of a series p-tert-butylcalix[4]arenes bearing ligating ester groups in the cone conformation have been assessed by stability constant measurements methanol and extraction studies from water into dichloromethane. cations studied were Na+ K+ variations function (CO2R) included R = methyl, ethyl, n-butyl, tert-butyl, benzyl, phenyl, phenacyl, methoxyethyl, trifluoroethyl, methylthioethyl prop-2-ynyl. effect replacing one or two functions tetraethyl methyl ester,...
Food fraud and adulteration is a major concern in terms of economic public health. Multivariate methods combined with spectroscopic techniques have shown promise as novel analytical strategy for addressing issues related to food that cannot be solved by the analysis one variable, particularly complex matrices such distilled beverages. This review describes discusses different aspects whisky production, recent developments laboratory, field high throughput analysis. In particular,...
The binding interactions between aqueous copper (Cu(2+)) and lithium (Li(+)) ions Langmuir monolayers Langmuir-Blodgett (LB) multilayers have been investigated by studying surface pressure-area (Pi-A) isotherms potential-area (DeltaV-A) behavior in order to find the effective dipole moment, mu(perpendicular), of calixarene molecules uncomplexed complexed states. orientation both calix[4]arenes, namely, 5,11,17,23-tetra-tert-butyl-25,27-diethoxycarbonyl...
Gene therapy is a technique that currently under expansion and development. Recent advances in genetic medicine have paved the way for broader range of therapies laid groundwork next-generation technologies. A terminally substituted difluorene-diester Schiff Base calix[4]arene has been studied this work as possible nanovector to be used gene therapy. Changes luminescent behavior calixarene macrocycle are reported presence ct-DNA. The interacts with calf thymus DNA (ct-DNA), generating...
Calix[4]arene tetraethyl ester (1a) is hydrolysed by trifluoroacetic acid with the loss of one, and only group to form a monoacid triester; process, which inhibited Na+ ion, believed involve specific hydronium ion complexation within calixarene receptor.
New ferrocene derivatives, (6-(4-(1H-pyrrol-1-yl)phenoxy)hexyl) (1) and ((4-(1H-pyrrol-1-yl)phenoxy)carbonyl) (2) were synthesized, characterized, electrochemically evaluated as redox active films formed via anodic oxidation with pyrrole. Thin film studies conducted from both compounds resulted in a stable FeII/III couple Eo = 0.035 V 0.365 vs. Ag/Ag+ for (2), respectively. Both potential sweeping chronocolometry employed formation the former resulting controllable, reproducible deposition....
A study of surface pressure - area (Π-A) isotherms, potential (ΔV) and effective dipole moment () two calix[4] arenes, 5,11,17,23-tetra-tert-butyl-25,27-diethoxycarbonyl methyleneoxy-26,28,dihydroxycalix[4]arene (calixarene I) 5,17-(3-nitrobenzylideneamino)-11,23-di-tert-butyl-25,27-diethoxycarbonyl methyleneoxy-26,28-dihydroxycalix[4] arene II) LB films which have the same lower rim but different upper has been carried out. This work used a NIMA Surface Potential (S-POT) sensor attached to...
Here, we present an evaluation of two new monosubstituted ferrocene (Fc) derivatives, 3-(1H-pyrrol-1-yl)propanamidoferrocene and 1-hydroxy-2-[2-(thiophen-3-yl)-ethylamino]ethylferrocene, as glutamate oxidase mediators, together with their preparation characterisation. Taking into consideration the influence electronic effects substituents on redox potentials Fc species, candidates pyrrole or thiophene moieties were proposed for investigation. Film studies involved potential sweeping in...
The characteristics of cadmium sulphide (CdS) and lead (PbS) nanoparticles, grown inside Langmuir-Blodgett (LB) multilayer films 5,11,17,23-tetra-tert-butyl-25,27-dicarboxymethoxy-26,28-dihydroxycalix [arene (I), have been studied using ellipsometry, UV-visible spectroscopy, transmission electron microscopy (TEM). Multilayer were formed by transferring a floating Langmuir monolayer I onto substrates LB deposition water subphase containing Pb 2+ or Cd ions. nanoparticles fabricated exposing...
Abstract A number of sodium salt complexes p‐tert‐ butylcalix[4]arene tetraethyl ester ( 1 ) were isolated both with and without upper‐rim encapsulated acetonitrile or methanol. Upon dissolution in CDCl 3 , remained largely complexed to the cation but ca. 90 % bound solvent was released, reflecting relative values binding constants for complexation two guest species. Selective decomplexation lower‐rim cations could be successfully achieved using low‐pressure light sources, triggering...
Conference Article| May 01 1995 Comparative immunoblot analysis of the guanine nucleotide binding protein Gqα in control and Alzheimer's disease brains CAROL SHANAHAN; SHANAHAN 1Dept. Biochemistry, University College Cork, Ireland Search for other works by this author on: This Site PubMed Google Scholar MARY DEASY; DEASY RIVKA RAVID; RAVID *Institute Brain Research, Meibergdreef 33, Amsterdam ZO, The Netherlands CORA O'NEILL Author article information Publisher: Portland Press Ltd Online...