A5013719794- Radiopharmaceutical Chemistry and Applications
- Radioactive element chemistry and processing
- Lanthanide and Transition Metal Complexes
- Medical Imaging and Pathology Studies
- Medical Imaging Techniques and Applications
- Analytical chemistry methods development
- X-ray Diffraction in Crystallography
- Extraction and Separation Processes
- Crystallization and Solubility Studies
- Geochemistry and Elemental Analysis
- Field-Flow Fractionation Techniques
- Heavy metals in environment
- Nuclear Physics and Applications
- Monoclonal and Polyclonal Antibodies Research
- Chemical Synthesis and Characterization
- Mass Spectrometry Techniques and Applications
- Radioactive contamination and transfer
- Bone health and treatments
- thermodynamics and calorimetric analyses
- Radiation Therapy and Dosimetry
- Chemical Synthesis and Analysis
- Isotope Analysis in Ecology
- Chemical and Physical Properties in Aqueous Solutions
- Particle accelerators and beam dynamics
- DNA and Nucleic Acid Chemistry
Montpellier GenomiX
2013-2024
Laboratoire de Physique Subatomique et des Technologies Associées
2014-2024
IMT Atlantique
2018-2024
Institut Génétique Nantes Atlantique
2017-2024
Nantes Université
2012-2023
Centre National de la Recherche Scientifique
2012-2023
Institut Mines-Télécom
2018
Institut National de Physique Nucléaire et de Physique des Particules
2018
Laboratoire Kastler Brossel
2018
École Nationale Supérieure des Mines de Paris
2002-2017
To contribute to the comprehension of metal ion sorption properties in mixed mineral-organic matter systems, interaction studies between Eu(III) and polymaleic acid (PMA)-coated alumina colloids were carried out at pH 5 0.1 M NaClO4. The studied parameters concentration (1 x 10(-10) 1 10(-4) M) PMA loading on (gamma = 10-70 mg/g). data described by a surface complexation model. constant capacitance model was used account for electrostatic interactions. results showed thattwo sites necessary...
Abstract Diethylenetriamine‐ N,N,N′,N′′,N′′ ‐pentaacetic acid (DTPA) and 1,4,7,10‐tetraazacyclododecane‐1,4,7,10‐tetraacetic (DOTA) scandium(III) complexes were investigated in the solution solid state. Three 45 Sc NMR spectroscopic references suitable for aqueous solutions suggested: 0.1 M Sc(ClO 4 ) 3 1 aq. HClO ( δ =0.0 ppm), ScCl HCl =1.75 ppm) 0.01 [Sc(ox) ] 5− (ox 2− =oxalato) K 2 C O =8.31 ppm). In solution, [Sc(dtpa)] complex =83 ppm, ▵ ν =770 Hz) has a rather symmetric ligand field...
The complexation ability of DOTA analogs bearing one methylenephosphonic (DO3AP) or methylenephosphinic (DO3AP(PrA) and DO3AP(ABn)) acid pendant arm toward scandium was evaluated. Stability constants their scandium(iii) complexes were determined by potentiometry combined with (45)Sc NMR spectroscopy. stability the monophosphinate analogues are somewhat lower than that Sc-DOTA complex. phosphorus moiety interacts trivalent even in very acidic solutions forming out-of-cage complexes; strong...
Abstract Scandium isotopes ( 44 Sc, 47 Sc) are more available and their properties convenient for either PET imaging or radiotherapy. To use them in nuclear medicine, ligands forming complexes with a high stability necessary. Available experimental data on constants of such as EDTA, DTPA, DOTA, NOTA TETA various metal ions have been published. But scandium is the exception since scarce literature. Values Sc(III) were determined by free-ion selective radiotracer extraction, complemented 45 Sc...
Here we present the synthesis and characterization of a new bispidine (3,7-diazabicyclo[3.3.1]nonane) ligand with N-methanephosphonate substituents (L2). Its physicochemical properties in water, as well those corresponding Cu(II) Zn(II) complexes, have been evaluated by using UV-visible absorption spectroscopy, potentiometry, 1H 31P NMR, cyclic voltammetry. Radiolabeling experiments 64CuII carried out, showing excellent radiolabeling properties. Quantitative complexation was achieved within...
Chitosan CS-tripolyphosphate TPP/hyaluronic acid HA nanohydrogels loaded with gadolinium chelates (GdDOTA ⊂ CS-TPP/HA NGs) synthesized by ionic gelation were designed for lymph node (LN) MRI. In order to be efficiently drained LNs, nanogels (NGs) needed exhibit a diameter ϕ < 100 nm. For that, formulation parameters tuned, using (i) CS of two different molecular weights (51 and 37 kDa) (ii) variable CS/TPP ratio (2 8). Characterization NG size distribution dynamic light scattering (DLS)...
ADVERTISEMENT RETURN TO ISSUEPREVFEATURENEXTModeling Metal–Particle Interactions With an Emphasis on Natural Organic MatterPatricia Merdy, Luuk K. Koopal, and Sandrine HuclierCite this: Environ. Sci. Technol. 2006, 40, 24, 7459–7466Publication Date (Web):December 15, 2006Publication History Published online15 December 2006Published inissue 1 2006https://pubs.acs.org/doi/10.1021/es0628203https://doi.org/10.1021/es0628203newsACS Publications. This publication is available under these Terms of...
The first radiolabelling studies of a bispidine (3,7-diazabicyclo[3.3.1]nonane) derivative substituted by glycinate pendant arm (L1) with 64Cu are reported. Labelling was fast and easily performed at room temperature in wide range pH values. Under these conditions, radiochemical yields over 90% were achieved within 5 minutes micromolar concentration the ligand. A bifunctional analogue L1 (L2) has been obtained introducing an l-lysine amino acid on skeleton. Ligand L2 demonstrates good...
SUMMARY The interaction between ligands and receptors is often described in terms of 50% inhibitory concentrations ( IC50 ). However, values do not accurately reflect the dissociation constants Kd ), domain application precision proposed approximations for estimation are unclear. effect affinity experimental conditions on differences has been assessed from exact mass action law calculations computer simulations. Competitions [ 111 In]DTPA‐indium a few metal‐DTPA complexes binding to specific...
Quantitative 2H NMR spectroscopy has been used to determine the natural abundance site-specific isotopic content of 6,7-dihydrocapsaicin (1) and capsaicin (2). Prior analysis, fatty acyl moieties were released as methyl 8-methylnonanoate (3) E-8-methylnon-6-enoate (4), respectively. A marked similar nonstatisitical distribution is observed for both acids. Notably, it can be seen that: 1) isobutyl portion 3 more impoverished in than methylenic portion; 2) 4 that 3; 3) an alternating pattern...
The complexation of scandium(<sc>iii</sc>) by various polyaminopolycarboxylic ligands (DTPA and DOTA) was studied capillary electrophoresis with ICP-MS detection in 0.1 mol L<sup>−1</sup>NaCl ionic strength solutions at 25 °C.
Uranium-238 (238U), a long-lived radiometal, is widespread in the environment because of both naturally occurring processes and anthropogenic processes. The ingestion or inhalation large amounts U major threat to humans, its toxicity considered mostly chemical rather than radiological. Therefore, way remove uranium ingested by humans from uranium-contaminated water air critically needed. This study investigated uptake hydroxyapatite (HAP), compound found human bone teeth. teeth result...
We have investigated the composition of mobile natural organic matter (NOM) present in Callovo-Oxfodian pore water using electrospray ionization mass spectrometry (ESI-MS), atmospheric pressure chemical (APCI-MS) and emission-excitation matrix (EEM) spectroscopy. The generation knowledge composition, structure size NOM is necessary if one wants to understand interactions these compounds with heavy metals/radionuclides, context environmental studies, particularly how mobility trace elements...