Výsledky vyhledávání - "Farid Oukacine"

Quantification of Ions and Organic Molecules, in Nanoliter Samples, in the Absence of Reference Materials

Autor: Laura Lavigne, Luc Choisnard, Eric Peyrin, Farid Oukacine

Publikováno v: Analytical chemistry. 94(45)

A new analytical methodology, using capillary electrophoresis in indirect UV absorbance mode, is developed for the quantification of analytes in the absence of reference materials. The methodology allows the quantification of organic molecules and/or

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3c9e11e7929b7bdef2330071a4385433
https://pubmed.ncbi.nlm.nih.gov/36342126

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Aptamer Switches Regulated by Post‐Transition/Transition Metal Ions

Autor: Blandine Billet, Patrice Faure, Farid Oukacine, Emmanuelle Fiore, Corinne Ravelet, Benoit Chovelon, Mel-Alexandre Petrillo, Eric Peyrin

Publikováno v: Angewandte Chemie International Edition. 60:12346-12350

We introduced an aptamer switch design that relies on the ability of post-transition/transition metal ions to trigger, through their coordination to nucleobases, substantial DNA destabilization. In the absence of molecular target, the addition of one

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::be0b30910ef6010e0d7ce8cbe4be120b
https://doi.org/10.1002/anie.202102254

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Enantiomeric sensing and separation by nucleic acids

Autor: Eric Peyrin, Corinne Ravelet, Farid Oukacine

Publikováno v: Trends in Analytical Chemistry
Trends in Analytical Chemistry, Elsevier, 2020, 122, pp.115733-. ⟨10.1016/j.trac.2019.115733⟩

Naturally occurring polymers (and their derivatives) such as polysaccharides and proteins are very popular chiral selectors in analytical sciences. In contrast, nucleic acids have received much less attention in the enantiomeric analysis field. Howev

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::128adb32f434d9d4154946c758198eb1
https://hal.archives-ouvertes.fr/hal-03488600

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Capillary electrophoretic apparatus for the endpoint detection in microtitration methods

Autor: Luc Choisnard, Eric Peyrin, Annabelle Gèze, Farid Oukacine

Publikováno v: Journal of Chromatography A
Journal of Chromatography A, Elsevier, 2019, 1597, pp.220-224. ⟨10.1016/j.chroma.2019.03.014⟩

Titration methods are routinely used in the laboratories for the quantification of acids and bases, for the complexometric determination of metal ions and for the ion-pair titrations of drugs in pharmaceutical control. They also find application in a

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b6c3e853fd681a09260331baef6ce499
https://hal.archives-ouvertes.fr/hal-03484720

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Capillary electrophoretic focusing of covalently derivatized protein induced by surfactant

Autor: Kiarach Mesbah, Joselito P. Quirino, Myriam Taverna, Farid Oukacine

Publikováno v: ELECTROPHORESIS. 37:1151-1154

In this communication, we present a very simple strategy to focus covalently derivatized proteins for high sensitivity CE analysis by LIF detection. We demonstrated that the covalently tagged protein can be focused just by adding SDS at a concentrati

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::296784c60852b260f37f55161ac16c11
https://doi.org/10.1002/elps.201600030

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Inline Coupling of Electrokinetic Preconcentration Method to Taylor Dispersion Analysis for Size-Based Characterization of Low-UV-Absorbing Nanoparticles

Autor: Farid Oukacine, Jean Paul Stahl, Jean-Luc Putaux, Luc Choisnard, Eric Peyrin, Annabelle Gèze

Publikováno v: Analytical Chemistry
Analytical Chemistry, American Chemical Society, 2018, 90 (4), pp.2493-2500. ⟨10.1021/acs.analchem.7b03344⟩

The inline coupling of the field-amplified sample injection (FASI) to Taylor dispersion analysis (TDA) was used to characterize low-UV absorbing carboxylated silica nanoparticles (cNPs). The hydrodynamic diameters (Dh) were measured by using a commer

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f098ebd11996f4727c816fadcea1dcf1
https://hal.archives-ouvertes.fr/hal-02106173

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An improved capillary electrophoresis method for in vitro monitoring of the challenging early steps of Aβ1-42peptide oligomerization: Application to anti-Alzheimer's drug discovery

Autor: Sarah Glumm, Julia Kaffy, Sandrine Ongeri, Farid Oukacine, Dimitri Brinet, Myriam Taverna

Publikováno v: ELECTROPHORESIS. 35:3302-3309

We report an improved CE method to monitor in vitro the self-assembly of monomeric amyloid β-peptide (42 amino acids amyloid β-peptide, Aβ1-42 ) and in particular the crucial early steps involved in the formation of the neurotoxic oligomers. In or

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2e765a10838eed8a7375a70292630823
https://doi.org/10.1002/elps.201400271

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Poly(glycidyl methacrylate)/silver nanocomposite microspheres as a radioiodine scavenger: Electrophoretic characterisation of carboxyl- and amine-modified particles

Autor: Zdeněk Plichta, Hana Macková, Myriam Taverna, Farid Oukacine, Jan Kučka, Martin Hrubý, Daniel Horák

Publikováno v: Journal of Colloid and Interface Science. 421:146-153

Silver nanoparticles possess potent antibacterial properties and have extremely high affinities to radioiodine. For several applications, it is essential to anchor the nanoparticles to microparticles or solid surfaces to make them insoluble while ret

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3c07ed2d172779ccee2f75affb47502a
https://doi.org/10.1016/j.jcis.2014.01.042

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Sequence requirements of oligonucleotide chiral selectors for the capillary electrophoresis resolution of low-affinity DNA binders

Autor: Eric Peyrin, Corinne Ravelet, Luma Tohala, Farid Oukacine

Publikováno v: Electrophoresis. 38(9-10)

We recently reported that a great variety of DNA oligonucleotides (ONs) used as chiral selectors in partial-filling capillary electrophoresis (CE) exhibited interesting enantioresolution properties toward low-affinity DNA binders. Herein, the sequenc

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::99f3fb14a1c8d381053bc09d707adb94
https://pubmed.ncbi.nlm.nih.gov/28256731

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Multiple capillary isotachophoresis with repetitive hydrodynamic injections for performance improvement of the electromigration preconcentration

Autor: Farid Oukacine, Thanh Duc Mai, Myriam Taverna

Publikováno v: Journal of chromatography. A. 1453

A novel electrokinetic preconcentration technique based on multiple isotachophoresis (M-ITP) realised in a micro-bored capillary to improve sensitivity for capillary electrophoresis with hydrodynamic injection was developed. The M-ITP operation relie

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d20c7c1dcc2baf0b592156d64eb7621c
https://pubmed.ncbi.nlm.nih.gov/27236482

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