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Skinner M, Sullivan B, Conley C, Johnson D, Ireland ML, Landy D, Stone A, Jacobs C. Incidence of Osteoarthritis Diagnosis Within 5 Years of Surgery Was Greater Following Partial Meniscectomy Than Meniscus Repair and/or Anterior Cruciate Ligament Reconstruction. Arthrosc Sports Med Rehabil 2024; 6:100903. [PMID: 38426126 PMCID: PMC10901843 DOI: 10.1016/j.asmr.2024.100903] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2023] [Accepted: 01/13/2024] [Indexed: 03/02/2024] Open
Abstract
Purpose To compare knee osteoarthritis (OA) incidence within 5 years of surgery between 5 common sports medicine procedures: isolated anterior cruciate ligament (ACL) reconstruction, isolated meniscus repair (MR), isolated arthroscopic partial meniscectomy (APM), ACL reconstruction with MR (ACL + MR), and ACL reconstruction with APM (ACL + APM). Methods The PearlDiver Mariner M157Ortho database was searched. Five cohorts were identified using Current Procedural Terminology (CPT) codes and included those 16 to 60 years old who underwent isolated ACL reconstruction, isolated MR, ACL + MR, isolated APM, or ACL + APM repair. Groups were matched by age, sex, and presence of diagnosis codes for obesity. The incidence of knee OA diagnosis within 5 years of the index procedure was determined for each group, and odds ratios (ORs) were calculated and compared against isolated ACL reconstruction. Results Each group consisted of 7,672 patients (3,450 females, 4,222 males). A significantly greater proportion of the APM group was diagnosed with knee OA within 5 years of surgery compared to isolated ACL reconstruction (APM = 1,032/7,672 [13.5%] vs ACL = 745/7,672 [9.7%]; P ≤ .001; OR, 1.45; 95% confidence interval [CI], 1.31-1.60). Similarly, a greater proportion of the MR group was diagnosed with OA compared to isolated ACL reconstruction (MR = 826/7,672 [10.7%]; P = .030; OR, 1.12; 95% CI, 1.01-1.25). No differences in OA incidence were noted between the ACL + APM group when compared to isolated ACL reconstruction (P = .81). Patients undergoing ACL + MR demonstrated the lowest OA incidence with reduced odds when compared to isolated ACL reconstruction (ACL + MR = 575/7,672 [7.5%]; P < .001; OR, 0.75; 95% CI, 0.67-0.84). Conclusions In this analysis using CPT codes, APM was associated with the highest knee OA incidence, and ACL + MR was associated with the lowest OA incidence within 5 years of surgery. Level of Evidence Level III, retrospective cohort study.
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Affiliation(s)
- Matthew Skinner
- Department of Orthopaedic Surgery and Sports Medicine, University of Kentucky, Lexington, Kentucky, U.S.A
| | - Breanna Sullivan
- Department of Orthopaedic Surgery and Sports Medicine, University of Kentucky, Lexington, Kentucky, U.S.A
| | - Caitlin Conley
- Department of Orthopaedic Surgery and Sports Medicine, University of Kentucky, Lexington, Kentucky, U.S.A
| | - Darren Johnson
- Department of Orthopaedic Surgery and Sports Medicine, University of Kentucky, Lexington, Kentucky, U.S.A
| | - Mary Lloyd Ireland
- Department of Orthopaedic Surgery and Sports Medicine, University of Kentucky, Lexington, Kentucky, U.S.A
| | - David Landy
- Department of Orthopaedic Surgery and Sports Medicine, University of Kentucky, Lexington, Kentucky, U.S.A
| | - Austin Stone
- Department of Orthopaedic Surgery and Sports Medicine, University of Kentucky, Lexington, Kentucky, U.S.A
| | - Cale Jacobs
- Department of Orthopaedic Surgery and Sports Medicine, University of Kentucky, Lexington, Kentucky, U.S.A
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Falaise C, Khlifi S, Bauduin P, Schmid P, Degrouard J, Leforestier A, Shepard W, Marrot J, Haouas M, Landy D, Mellot-Draznieks C, Cadot E. Cooperative Self-Assembly Process Involving Giant Toroidal Polyoxometalate as a Membrane Building Block in Nanoscale Vesicles. J Am Chem Soc 2024; 146:1501-1511. [PMID: 38189235 DOI: 10.1021/jacs.3c11004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2024]
Abstract
The self-assembly of organic amphiphilic species into various aggregates such as spherical or elongated micelles and cylinders up to the formation of lyotropic hexagonal or lamellar phases results from cooperative processes orchestrated by the hydrophobic effect, while those involving ionic inorganic polynuclear entities and nonionic organic components are still intriguing. Herein, we report on the supramolecular behavior of giant toroidal molybdenum blue-type polyoxometalate, namely, the {Mo154} species in the presence of n-octyl-β-glucoside (C8G1), widely used as a surfactant in biochemistry. Structural investigations were carried out using a set of complementary multiscale methods including single-crystal X-ray diffraction analysis supported by molecular modeling, small-angle X-ray scattering and cryo-TEM observations. In addition, liquid NMR, viscosimetry, surface tension measurement, and isothermal titration calorimetry provided further information to decipher the complex aggregation pathway. Elucidation of the assembly process reveals a rich scenario where the presence of the large {Mo154} anion disrupts the self-assembly of the C8G1, well-known to produce micelles, and induces striking successive phase transitions from fluid-to-gel and from gel-to-fluid. Herein, intimate organic-inorganic primary interactions arising from the superchaotropic nature of the {Mo154} lead to versatile nanoscopic hybrid C8G1-{Mo154} aggregates including crystalline discrete assemblies, smectic lamellar liquid crystals, and large uni- or multilamellar vesicles where the large torus {Mo154} acts a trans-membrane component.
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Affiliation(s)
- Clément Falaise
- Institut Lavoisier de Versailles, CNRS, UVSQ, Université Paris-Saclay, Versailles 78035, France
| | - Soumaya Khlifi
- Institut Lavoisier de Versailles, CNRS, UVSQ, Université Paris-Saclay, Versailles 78035, France
| | - Pierre Bauduin
- ICSM, CEA, CNRS, ENSCM, Université Montpellier, Marcoule 34199, France
| | - Philipp Schmid
- ICSM, CEA, CNRS, ENSCM, Université Montpellier, Marcoule 34199, France
| | - Jéril Degrouard
- Université Paris-Saclay, CNRS, Laboratoire de Physique des Solides, Orsay 91405, France
| | - Amélie Leforestier
- Université Paris-Saclay, CNRS, Laboratoire de Physique des Solides, Orsay 91405, France
| | - William Shepard
- Synchrotron SOLEIL, L'Orme des Merisiers, Départementale 128, 91190 Saint-Aubin, France
| | - Jérôme Marrot
- Institut Lavoisier de Versailles, CNRS, UVSQ, Université Paris-Saclay, Versailles 78035, France
| | - Mohamed Haouas
- Institut Lavoisier de Versailles, CNRS, UVSQ, Université Paris-Saclay, Versailles 78035, France
| | - David Landy
- Unité de Chimie Environnementale et Interactions sur le Vivant (UCEIV, EA 4492), ULCO, Dunkerque 59140, France
| | - Caroline Mellot-Draznieks
- Laboratoire de Chimie des Processus Biologiques, UMR CNRS 8229, Collège de France, Sorbonne Université, PSL Research University, Paris, Cedex 05 75231, France
| | - Emmanuel Cadot
- Institut Lavoisier de Versailles, CNRS, UVSQ, Université Paris-Saclay, Versailles 78035, France
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Peluso P, Landy D, Nakhle L, Dallocchio R, Dessì A, Krait S, Salgado A, Chankvetadze B, Scriba GK. Isothermal titration calorimetry and molecular modeling study of the complex formation of daclatasvir by γ-cyclodextrin and trimethyl-β-cyclodextrin. Carbohydr Polym 2023; 313:120870. [PMID: 37182961 DOI: 10.1016/j.carbpol.2023.120870] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2022] [Revised: 03/17/2023] [Accepted: 03/27/2023] [Indexed: 03/31/2023]
Abstract
The complex formation between daclatasvir and γ-CD or heptakis(2,3,6-tri-O-methyl)-β-CD (TM-β-CD) was studied by isothermal titration calorimetry and molecular modeling. Both techniques supported the predominant formation of a 2:1 complex in case of γ-CD although a 1:1 complex may be formed to a much lower extent as well. In case of TM-β-CD the stoichiometry of the complex was exclusively 1:1. Complex formation with γ-CD did not require dissociation of the daclatasvir dimer, which is present in solution, and resulted in a complex with a binding constant of 1.67·107 M-2. In contrast, formation of the weak TM-β-CD complex (K = 371 M-1) required dissociation of the daclatasvir dimer. This is in line with the observation that the complex formation in case of γ-CD is enthalpy-driven, while the process is entropy-driven in case of TM-β-CD. It is concluded that the plateau observed in capillary electrophoresis is primarily based on the slow dissociation of the daclatasvir-CD complexes caused by steric constrains due to the folded terminal amino acid moieties of daclatasvir exerting a clip effect. In case γ-CD the thermodynamic stability might contribute to the overall slow dissociation.
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Nakhle L, Kfoury M, Greige-Gerges H, Landy D. Retention of a plethora of essential oils and aromas in deep eutectic solvent:water:cyclodextrin mixtures. J INCL PHENOM MACRO 2022. [DOI: 10.1007/s10847-022-01174-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
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Sullivan B, Abed V, Joiner J, Benningfield M, Landy D, Hawk GS, Conley C, Jacobs C, Stone AV. The Quality of Online Information for the Treatment of Knee Osteoarthritis: A Google Study. Cureus 2022; 14:e29995. [PMID: 36381839 PMCID: PMC9636897 DOI: 10.7759/cureus.29995] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/06/2022] [Indexed: 11/06/2022] Open
Abstract
Introduction Affecting more than 30 million adults annually, osteoarthritis (OA) is the most common joint disorder in the United States. A variety of management options for knee OA exists, including physical therapy, weight loss, intra-articular corticosteroid injections, and total joint arthroplasty. With many treatments available, patients often utilize the internet to educate themselves about their condition and management options. The purpose of this study was to evaluate the quality, transparency, and readability of online information for the treatment of knee OA. Methods The search terms “knee,” “arthritis,” and “treatment” were entered into an incognito mode Google browser. Websites were classified by type (commercial, academic, nonacademic medical practice, government/patient advocacy, and other) and graded on content quality, transparency, and readability using the following scores, respectively: modified DISCERN, Journal of American Medical Association (JAMA) Benchmark, and Flesch-Kincaid (FK) grade level. Results Of the 95 websites evaluated, commercial (mean, 38.2) and academic (37.3) sites had the highest total DISCERN scores, which were significantly greater than nonacademic medical practice (31.8) and government/patient advocacy sites (33.4) (p≤0.035). Nonacademic medical practice sites had the lowest mean total DISCERN (31.8) and JAMA (1.47) scores and the highest FK grade level readability (9.5). There was a significant positive correlation between mean total DISCERN and JAMA scores (r=0.46, p<0.001). Conclusion The mean overall quality of websites regarding the treatment of OA was good as evidenced by greater modified DISCERN scores. However, website quality ranged from poor to excellent, indicating that some websites are still missing key information patients may find useful when assessing treatment options online.
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Stopka TJ, Yaghi O, Li M, Paintsil E, Chui K, Landy D, Heimer R. Molecular and spatial epidemiology of HCV among people who inject drugs in Boston, Massachusetts. PLoS One 2022; 17:e0266216. [PMID: 36006966 PMCID: PMC9409531 DOI: 10.1371/journal.pone.0266216] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2022] [Accepted: 07/29/2022] [Indexed: 11/19/2022] Open
Abstract
Integration of genetic, social network, and spatial data has the potential to improve understanding of transmission dynamics in established HCV epidemics. Sequence data were analyzed from 63 viremic people who inject drugs recruited in the Boston area through chain referral or time-location sampling. HCV subtype 1a was most prevalent (57.1%), followed by subtype 3a (33.9%). The phylogenetic distances between sequences were no shorter comparing individuals within versus across networks, nor by location or time of first injection. Social and spatial networks, while interesting, may be too ephemeral to inform transmission dynamics when the date and location of infection are indeterminate.
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Affiliation(s)
- Thomas J. Stopka
- Department of Public Health and Community Medicine, Tufts University School of Medicine, Boston, MA, United States of America
| | - Omar Yaghi
- Department of Public Health and Community Medicine, Tufts University School of Medicine, Boston, MA, United States of America
| | - Min Li
- Yale University School of Medicine, New Haven, CT, United States of America
| | - Elijah Paintsil
- Yale University School of Medicine, New Haven, CT, United States of America
- Yale University School of Public Health, New Haven, CT, United States of America
| | - Kenneth Chui
- Department of Public Health and Community Medicine, Tufts University School of Medicine, Boston, MA, United States of America
| | - David Landy
- Department of Public Health and Community Medicine, Tufts University School of Medicine, Boston, MA, United States of America
| | - Robert Heimer
- Yale University School of Medicine, New Haven, CT, United States of America
- Center for Interdisciplinary Research on AIDS at Yale, New Haven, CT, United States of America
- * E-mail:
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Nakhle L, Kfoury M, Mallard I, Greige-Gerges H, Landy D. Solubilization of Eucalyptus citriodora essential oil and citronellal in deep eutectic solvents:water:cyclodextrins mixtures. J Mol Liq 2022. [DOI: 10.1016/j.molliq.2022.119371] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Fa Bamba I, Falaise C, Marrot J, Atheba P, Gbassi G, Landy D, Shepard W, Haouas M, Cadot E. Host-Guest Complexation Between Cyclodextrins and Hybrid Hexavanadates: What are the Driving Forces? Chemistry 2021; 27:15516-15527. [PMID: 34523167 DOI: 10.1002/chem.202102684] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2021] [Indexed: 11/12/2022]
Abstract
Host-guest complexes between native cyclodextrins (α-, β- and γ-CD) and hybrid Lindqvist-type polyoxovanadates (POVs) [V6 O13 ((OCH2 )3 C-R)2 ]2- with R = CH2 CH3 , NO2 , CH2 OH and NH(BOC) (BOC = N-tert-butoxycarbonyl) were studied in aqueous solution. Six crystal structures determined by single-crystal X-ray diffraction analysis revealed the nature of the functional R group strongly influences the host-guest conformation and also the crystal packing. In all systems isolated in the solid-state, the organic groups R are embedded within the cyclodextrin cavities, involving only a few weak supramolecular contacts. The interaction between hybrid POVs and the macrocyclic organic hosts have been deeply studied in solution using ITC, cyclic voltammetry and NMR methods (1D 1 H NMR, and 2D DOSY, and ROESY). This set of complementary techniques provides clear insights about the strength of interactions and the binding host-guest modes occurring in aqueous solution, highlighting a dramatic influence of the functional group R on the supramolecular properties of the hexavanadate polyoxoanions (association constant K1:1 vary from 0 to 2 000 M-1 ) while isolated functional organic groups exhibit only very weak intrinsic affinity with CDs. Electrochemical and calorimetric investigations suggest that the driving force of the host-guest association involving larger CDs (β- and γ-CD) is mainly related to the chaotropic effect. In contrast, the hydrophobic effect supported by weak attractive forces appears as the main contributor for the formation of α-CD-containing host-guest complexes. In any cases, the origin of driving forces is clearly related to the ability of the macrocyclic host to desolvate the exposed moieties of the hybrid POVs.
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Affiliation(s)
- Ibrahima Fa Bamba
- Institut Lavoisier de Versailles, CNRS, UVSQ, Université Paris-Saclay, Versailles, France.,UFR Sciences Pharmaceutiques et Biologiques (UFR SPB), Université Félix Houphouet Boigny (UFHB), Abidjan, Côte d'Ivoire
| | - Clément Falaise
- Institut Lavoisier de Versailles, CNRS, UVSQ, Université Paris-Saclay, Versailles, France
| | - Jérôme Marrot
- Institut Lavoisier de Versailles, CNRS, UVSQ, Université Paris-Saclay, Versailles, France
| | - Patrick Atheba
- UFR Sciences des Structures de la Matière et Technologie (UFR SSMT), Université Félix Houphouet Boigny (UFHB), Abidjan, Côte d'Ivoire
| | - Gildas Gbassi
- UFR Sciences Pharmaceutiques et Biologiques (UFR SPB), Université Félix Houphouet Boigny (UFHB), Abidjan, Côte d'Ivoire
| | - David Landy
- Unité de Chimie Environnementale et Interactions sur le Vivant, ULCO, Dunkerque, UR 4492, France
| | - William Shepard
- Synchrotron SOLEIL, L'Orme des Merisiers Saint-Aubain BP 48, 91192 Gif-sur-Yvette, CEDEX, France
| | - Mohamed Haouas
- Institut Lavoisier de Versailles, CNRS, UVSQ, Université Paris-Saclay, Versailles, France
| | - Emmanuel Cadot
- Institut Lavoisier de Versailles, CNRS, UVSQ, Université Paris-Saclay, Versailles, France
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Rigaud S, Mathiron D, Moufawad T, Landy D, Djedaini-Pilard F, Marçon F. Cyclodextrin Complexation as a Way of Increasing the Aqueous Solubility and Stability of Carvedilol. Pharmaceutics 2021; 13:1746. [PMID: 34834163 PMCID: PMC8620534 DOI: 10.3390/pharmaceutics13111746] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2021] [Revised: 10/13/2021] [Accepted: 10/15/2021] [Indexed: 11/24/2022] Open
Abstract
We studied the effect of several CDs on carvedilol's solubility and chemical stability in various aqueous media. Our present results show that it is possible to achieve a carvedilol concentration of 5 mg/mL (12.3 mM) in the presence of 5 eq of γCD or RAMEB in an aqueous medium with an acceptable acid pH (between 3.5 and 4.7). Carvedilol formed 1:1 inclusion complexes but those with RAMEB appear to be stronger (K = 317 M-1 at 298 K) than that with γCD (K = 225 M-1 at 298 K). The complexation of carvedilol by RAMEB significantly increased the drug's photochemical stability in aqueous solution. These results might constitute a first step towards the development of a novel oral formulation of carvedilol.
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Affiliation(s)
- Sébastien Rigaud
- Laboratoire de Glycochimie des Antimicrobiens et des Agroressources UMR 7378 CNRS, Université de Picardie Jules Verne, 33 Rue Saint-Leu, F-80039 Amiens, France;
| | - David Mathiron
- Plateforme-Analytique, Université de Picardie Jules Verne, 33 Rue Saint-Leu, F-80039 Amiens, France;
| | - Tarek Moufawad
- Unité de Chimie Environnementale et Interactions sur le Vivant (UCEIV, UR 4492), ULCO, F-59140 Dunkerque, France; (T.M.); (D.L.)
| | - David Landy
- Unité de Chimie Environnementale et Interactions sur le Vivant (UCEIV, UR 4492), ULCO, F-59140 Dunkerque, France; (T.M.); (D.L.)
| | - Florence Djedaini-Pilard
- Laboratoire de Glycochimie des Antimicrobiens et des Agroressources UMR 7378 CNRS, Université de Picardie Jules Verne, 33 Rue Saint-Leu, F-80039 Amiens, France;
| | - Frédéric Marçon
- Laboratoire AGIR UR4294, Université de Picardie Jules Verne, 1 Rue des Louvels, F-80039 Amiens, France;
- Pharmacie à Usage Intérieur, Centre Hospitalier Universitaire d’Amiens-Picardie, 1 Rue du Professeur Christian Cabrol, F-80054 Amiens, France
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Yao S, Falaise C, Khlifi S, Leclerc N, Haouas M, Landy D, Cadot E. Redox-Responsive Host-Guest Association between γ-Cyclodextrin and Mixed-Metal Keggin-Type Polyoxometalates. Inorg Chem 2021; 60:7433-7441. [PMID: 33915041 DOI: 10.1021/acs.inorgchem.1c00724] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
The complexation of Keggin-type polyoxometalates (POMs) with γ-cyclodextrin (γ-CD) leads to supramolecular inclusion assemblies in aqueous solution driven by a chaotropic effect. The strength of the interaction between γ-CD and oxidized or one-electron reduced POMs in a series of molybdenum and vanadium monosubstituted phospho- and silico-tungstates, [XW11MO40]n- Keggin-type anions where X = P or Si and M = MoV/VI or VIV/V, has been evaluated by isothermal titration calorimetry (ITC), NMR spectroscopy, and cyclic voltammetry. Such a study reveals that the host-guest binding constant K1:1 increases strongly with the decrease of the global ionic charge of the POM unit. There is an almost one magnitude order of variation in K1:1 per charge unit, where K1:1 falls down from about 105 M-1 to values close to zero as ionic charge varies from 3- to 6-. Such POMs with molybdenum and vanadium addenda offer the possibility of tuning the host-guest association strength by the simple addition/removal of one electron to POMs, opening a new avenue for the design of smart materials through redox stimuli.
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Affiliation(s)
- Sa Yao
- Institut Lavoisier de Versailles, UMR 8180 CNRS, UVSQ, Université Paris-Saclay, Versailles 78035, France
| | - Clément Falaise
- Institut Lavoisier de Versailles, UMR 8180 CNRS, UVSQ, Université Paris-Saclay, Versailles 78035, France
| | - Soumaya Khlifi
- Institut Lavoisier de Versailles, UMR 8180 CNRS, UVSQ, Université Paris-Saclay, Versailles 78035, France
| | - Nathalie Leclerc
- Institut Lavoisier de Versailles, UMR 8180 CNRS, UVSQ, Université Paris-Saclay, Versailles 78035, France
| | - Mohamed Haouas
- Institut Lavoisier de Versailles, UMR 8180 CNRS, UVSQ, Université Paris-Saclay, Versailles 78035, France
| | - David Landy
- Unité de Chimie Environnementale et Interactions sur le Vivant (UCEIV, EA 4492), ULCO, Dunkerque 59140, France
| | - Emmanuel Cadot
- Institut Lavoisier de Versailles, UMR 8180 CNRS, UVSQ, Université Paris-Saclay, Versailles 78035, France
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Yao S, Falaise C, Ivanov AA, Leclerc N, Hohenschutz M, Haouas M, Landy D, Shestopalov MA, Bauduin P, Cadot E. Hofmeister effect in the Keggin-type polyoxotungstate series. Inorg Chem Front 2021. [DOI: 10.1039/d0qi00902d] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
The chaotropic character of Keggin-type polyoxotungstate anions was evaluated with respect to their ability to bind to γ-cyclodextrin (γ-CD) by varying the global charge density of the nanometer-sized polyanion.
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Affiliation(s)
- Sa Yao
- Institut Lavoisier de Versailles
- UMR 8180 CNRS
- UVSQ
- Université Paris-Saclay
- Versailles
| | - Clément Falaise
- Institut Lavoisier de Versailles
- UMR 8180 CNRS
- UVSQ
- Université Paris-Saclay
- Versailles
| | - Anton A. Ivanov
- Institut Lavoisier de Versailles
- UMR 8180 CNRS
- UVSQ
- Université Paris-Saclay
- Versailles
| | - Nathalie Leclerc
- Institut Lavoisier de Versailles
- UMR 8180 CNRS
- UVSQ
- Université Paris-Saclay
- Versailles
| | | | - Mohamed Haouas
- Institut Lavoisier de Versailles
- UMR 8180 CNRS
- UVSQ
- Université Paris-Saclay
- Versailles
| | - David Landy
- Unité de Chimie Environnementale et Interactions sur le Vivant (UCEIV, UR 4492)
- ULCO
- Dunkerque
- France
| | | | | | - Emmanuel Cadot
- Institut Lavoisier de Versailles
- UMR 8180 CNRS
- UVSQ
- Université Paris-Saclay
- Versailles
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Centellas MS, Piot M, Salles R, Proust A, Tortech L, Brouri D, Hupin S, Abécassis B, Landy D, Bo C, Izzet G. Exploring the self-assembly of dumbbell-shaped polyoxometalate hybrids, from molecular building units to nanostructured soft materials. Chem Sci 2020; 11:11072-11080. [PMID: 34123198 PMCID: PMC8162291 DOI: 10.1039/d0sc03243c] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2020] [Accepted: 09/10/2020] [Indexed: 01/02/2023] Open
Abstract
The formation of hierarchical nanostructures using preformed dumbbell-like species made of covalent organic-inorganic polyoxometalate (POM)-based hybrids is herein described. In this system, the presence of charged subunits (POM, metal linkers, and counter ions) in the complex molecular architecture can drive their aggregation, which results from a competition between the solvation energy of the discrete species and intermolecular electrostatic interactions. We show that the nature of the POM and the charge of the metal linker are key parameters for the hierarchical nanoorganization. The experimental findings were corroborated with a computational investigation combining DFT and molecular dynamics simulation methods, which outlines the importance of solvation of the counter ion and POM/counter ion association in the aggregation process. The dumbbell-like species can also form gels, in the presence of a poorer solvent, displaying similar nanoorganization of the aggregates. We show that starting from the designed molecular building units whose internal charges can be controlled by redox trigger we can achieve their implementation into soft nanostructured materials through the control of their supramolecular organization.
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Affiliation(s)
- Mireia Segado Centellas
- Institut Català d'Investigació Química (ICIQ), The Barcelona Institute of Science and Technology Av. Països Catalans, 17 Tarragona 43007 Spain
| | - Madeleine Piot
- Institut Parisien de Chimie Moléculaire, CNRS UMR 8232, Sorbonne Université F-75005 Paris France
| | - Raphaël Salles
- Institut Parisien de Chimie Moléculaire, CNRS UMR 8232, Sorbonne Université F-75005 Paris France
| | - Anna Proust
- Institut Parisien de Chimie Moléculaire, CNRS UMR 8232, Sorbonne Université F-75005 Paris France
| | - Ludovic Tortech
- Institut Parisien de Chimie Moléculaire, CNRS UMR 8232, Sorbonne Université F-75005 Paris France
- LICSEN, NIMBE, CEA, CNRS, Université Paris-Saclay CEA Saclay 91191 Gif-sur-Yvette Cedex France
| | - Dalil Brouri
- Laboratoire de Réactivité de Surface, CNRS UMR 7179, Sorbonne Université F-75005 Paris France
| | - Sébastien Hupin
- Normandie Univ, UNIROUEN, INSA Rouen, CNRS, COBRA 76000 Rouen France
| | - Benjamin Abécassis
- Laboratoire de Chimie, Ecole Normale Supérieure de Lyon, CNRS, UMR 5182, Université Claude Bernard, Université de Lyon 69007 Lyon France
| | - David Landy
- Unité de Chimie Environnementale et Interactions sur le Vivant (UCEIV, UR 4492), SFR Condorcet FR CNRS 3417, Université du Littoral Côte d'Opale 59140 Dunkerque France
| | - Carles Bo
- Institut Català d'Investigació Química (ICIQ), The Barcelona Institute of Science and Technology Av. Països Catalans, 17 Tarragona 43007 Spain
- Departament de Química Física i Inorgànica, Universitat Rovirai Virgili Carrer Marcel í Domingo s/n Tarragona 43007 Spain
| | - Guillaume Izzet
- Institut Parisien de Chimie Moléculaire, CNRS UMR 8232, Sorbonne Université F-75005 Paris France
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13
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Bertaut E, Goossens JF, Landy D, Danel C. Binding constants determination of cyclodextrin inclusion complexes by affinity capillary electrophoresis. How to overcome the limitations induced by the UV-detector? J Chromatogr A 2020; 1623:461209. [DOI: 10.1016/j.chroma.2020.461209] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2020] [Revised: 05/04/2020] [Accepted: 05/05/2020] [Indexed: 10/24/2022]
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14
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El Achkar T, Moura L, Moufawad T, Ruellan S, Panda S, Longuemart S, Legrand FX, Costa Gomes M, Landy D, Greige-Gerges H, Fourmentin S. New generation of supramolecular mixtures: Characterization and solubilization studies. Int J Pharm 2020; 584:119443. [PMID: 32447025 DOI: 10.1016/j.ijpharm.2020.119443] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2020] [Revised: 05/14/2020] [Accepted: 05/15/2020] [Indexed: 11/28/2022]
Abstract
In this work, a series of novel low melting mixtures (LMM) based on cyclodextrins (CD) and levulinic acid and inspired by the deep eutectic solvents (DES), were prepared. These supramolecular mixtures are the first reported CD-based mixtures that are liquid at room temperature. Density, viscosity and rheological measurements as well as differential scanning calorimetry and thermogravimetric analysis were performed to characterize these new LMM. Nuclear magnetic resonance (NMR) spectroscopy was used to monitor their stability. Furthermore, their ability to solubilize trans-anethole (AN) and related essentials oils were evaluated by static headspace-gas chromatography (SH-GC), in comparison with water. AN was up to 1300 times more soluble in the CD-based LMM than in water. Finally, multiple headspace extraction (MHE) was used to monitor the release of AN from these LMM. After 10 extractions, 20 to 40% of AN was released from the studied LMM, while 70% was released from water. The new CD-based LMM have potential applications for solubilization and delivery of poorly soluble drugs.
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Affiliation(s)
- Tracy El Achkar
- Unité de Chimie Environnementale et Interactions sur le Vivant (UCEIV,UR 4492), SFR Condorcet FR CNRS 3417, Université du Littoral Côte d'Opale, 59140 Dunkerque, France; Bioactive Molecules Research Laboratory, Faculty of Sciences, Lebanese University, 1202 Jdeidet El Metn, Lebanon
| | - Leila Moura
- Unité de Chimie Environnementale et Interactions sur le Vivant (UCEIV,UR 4492), SFR Condorcet FR CNRS 3417, Université du Littoral Côte d'Opale, 59140 Dunkerque, France
| | - Tarek Moufawad
- Unité de Chimie Environnementale et Interactions sur le Vivant (UCEIV,UR 4492), SFR Condorcet FR CNRS 3417, Université du Littoral Côte d'Opale, 59140 Dunkerque, France; Laboratoire de Chimie, ENS Lyon, UMR CNRS 5182, 46 Allée Italie, 69007 Lyon, France
| | - Steven Ruellan
- Unité de Chimie Environnementale et Interactions sur le Vivant (UCEIV,UR 4492), SFR Condorcet FR CNRS 3417, Université du Littoral Côte d'Opale, 59140 Dunkerque, France
| | - Somenath Panda
- Unité de Chimie Environnementale et Interactions sur le Vivant (UCEIV,UR 4492), SFR Condorcet FR CNRS 3417, Université du Littoral Côte d'Opale, 59140 Dunkerque, France
| | - Stéphane Longuemart
- Unité Dynamique et Structures des Matériaux Moléculaires (UDSMM, EA 4476), Université du Littoral Côte d'Opale, 59140 Dunkerque, France
| | - François-Xavier Legrand
- Institut Galien Paris-Sud, Université Paris-Sud, CNRS, Université Paris-Saclay, 92290 Châtenay-Malabry, France
| | | | - David Landy
- Unité de Chimie Environnementale et Interactions sur le Vivant (UCEIV,UR 4492), SFR Condorcet FR CNRS 3417, Université du Littoral Côte d'Opale, 59140 Dunkerque, France
| | - Hélène Greige-Gerges
- Bioactive Molecules Research Laboratory, Faculty of Sciences, Lebanese University, 1202 Jdeidet El Metn, Lebanon
| | - Sophie Fourmentin
- Unité de Chimie Environnementale et Interactions sur le Vivant (UCEIV,UR 4492), SFR Condorcet FR CNRS 3417, Université du Littoral Côte d'Opale, 59140 Dunkerque, France.
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15
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Ivanov AA, Pozmogova TN, Solovieva AO, Frolova TS, Sinitsyna OI, Lundovskaya OV, Tsygankova AR, Haouas M, Landy D, Benassi E, Shestopalova LV, Falaise C, Cadot E, Shestopalov MA, Abramov PA, Sokolov MN. From Specific γ-CD/[Nb 6 Cl 12 (H 2 O) 6 ] 2+ Recognition to Biological Activity Tuning. Chemistry 2020; 26:7479-7485. [PMID: 32181923 DOI: 10.1002/chem.202000739] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2020] [Revised: 03/12/2020] [Indexed: 11/06/2022]
Abstract
Specific molecular recognition of γ-cyclodextrin (γ-CD) by the cationic hexanuclear niobium [Nb6 Cl12 (H2 O)6 ]2+ cluster complex in aqueous solutions results in a 1:1 supramolecular assembly {[Nb6 Cl12 (H2 O)6 ]@γ-CD}2+ . NMR spectroscopy, isothermal titration calorimetry (ITC), and ESI-MS were used to study the interaction between the inorganic cluster and the organic macrocycle. Such molecular association affects the biological activity of [Nb6 Cl12 (H2 O)6 ]2+ , decreasing its cytotoxicity despite enhanced cellular uptake. The 1:1 stoichiometry is maintained in solution over a large window of the reagents' ratio, but crystallization by slow evaporation produces a 1:2 host-guest complex [Nb6 Cl12 (H2 O)6 @(γ-CD)2 ]Cl2 ⋅20 H2 O featuring the cluster encapsulated between two molecules of γ-CD. The 1:2 complex was characterized by XRD, elemental analysis, IR spectroscopy, and thermogravimetric analysis (TGA). Quantum chemical calculations were performed to model host-guest interaction.
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Affiliation(s)
- Anton A Ivanov
- Nikolaev Institute of Inorganic Chemistry SB RAS, 3 acad. Lavrentiev ave., 630090, Novosibirsk, Russia
| | - Tatiana N Pozmogova
- Novosibirsk State University, 2 Pirogova st., 630090, Novosibirsk, Russia.,Research Institute of Clinical and Experimental Lymphology, Branch of the ICG SB RAS, 2 Timakova st., 630117, Novosibirsk, Russia
| | - Anastasiya O Solovieva
- Research Institute of Clinical and Experimental Lymphology, Branch of the ICG SB RAS, 2 Timakova st., 630117, Novosibirsk, Russia.,Federal Research Center of Fundamental and Translational Medicine, 2 Timakova st., 630117, Novosibirsk, Russia
| | - Tatiana S Frolova
- Novosibirsk State University, 2 Pirogova st., 630090, Novosibirsk, Russia.,Federal Research Center of Fundamental and Translational Medicine, 2 Timakova st., 630117, Novosibirsk, Russia.,Federal Research Center Institute of Cytology and Genetics SB RAS, 10 acad. Lavrentiev ave., 630090, Novosibirsk, Russia
| | - Olga I Sinitsyna
- Novosibirsk State University, 2 Pirogova st., 630090, Novosibirsk, Russia.,Federal Research Center Institute of Cytology and Genetics SB RAS, 10 acad. Lavrentiev ave., 630090, Novosibirsk, Russia
| | - Olga V Lundovskaya
- Nikolaev Institute of Inorganic Chemistry SB RAS, 3 acad. Lavrentiev ave., 630090, Novosibirsk, Russia
| | - Alphiya R Tsygankova
- Nikolaev Institute of Inorganic Chemistry SB RAS, 3 acad. Lavrentiev ave., 630090, Novosibirsk, Russia.,Novosibirsk State University, 2 Pirogova st., 630090, Novosibirsk, Russia
| | - Mohamed Haouas
- Institut Lavoisier de Versailles, CNRS, UVSQ, Université Paris-Saclay, 45 avenue des Etats-Unis, 78035, Versailles, France
| | - David Landy
- Unité de Chimie Environnementale et Interactions sur le Vivant, (UCEIV, EA 4492), ULCO, 145, Avenue Maurice Schumann, MREI 1, 59140, Dunkerque, France
| | - Enrico Benassi
- Novosibirsk State University, 2 Pirogova st., 630090, Novosibirsk, Russia.,Shihezi University, 280 N 4th Rd, Shihezi, 832000, Xinjiang, P. R. China
| | | | - Clément Falaise
- Institut Lavoisier de Versailles, CNRS, UVSQ, Université Paris-Saclay, 45 avenue des Etats-Unis, 78035, Versailles, France
| | - Emmanuel Cadot
- Institut Lavoisier de Versailles, CNRS, UVSQ, Université Paris-Saclay, 45 avenue des Etats-Unis, 78035, Versailles, France
| | - Michael A Shestopalov
- Nikolaev Institute of Inorganic Chemistry SB RAS, 3 acad. Lavrentiev ave., 630090, Novosibirsk, Russia
| | - Pavel A Abramov
- Nikolaev Institute of Inorganic Chemistry SB RAS, 3 acad. Lavrentiev ave., 630090, Novosibirsk, Russia.,South Ural State University, 76 Lenina st., 454080, Chelyabinsk, Russia
| | - Maxim N Sokolov
- Nikolaev Institute of Inorganic Chemistry SB RAS, 3 acad. Lavrentiev ave., 630090, Novosibirsk, Russia.,Novosibirsk State University, 2 Pirogova st., 630090, Novosibirsk, Russia
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16
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Wang Z, Landy D, Sizun C, Cézard C, Solgadi A, Przybylski C, de Chaisemartin L, Herfindal L, Barratt G, Legrand FX. Cyclodextrin complexation studies as the first step for repurposing of chlorpromazine. Int J Pharm 2020; 584:119391. [PMID: 32376444 DOI: 10.1016/j.ijpharm.2020.119391] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2020] [Revised: 04/27/2020] [Accepted: 04/28/2020] [Indexed: 01/07/2023]
Abstract
The antipsychotic drug chlorpromazine (CPZ) has potential for the treatment of acute myeloid leukemia, if central nervous system side-effects resulting from its passage through the blood-brain barrier can be prevented. A robust drug delivery system for repurposed CPZ would be drug-in-cyclodextrin-in-liposome that would redirect the drug away from the brain while avoiding premature release in the circulation. As a first step, CPZ complexation with cyclodextrin (CD) has been studied. The stoichiometry, binding constant, enthalpy, and entropy of complex formation between CPZ and a panel of CDs was investigated by isothermal titration calorimetry (ITC). All the tested CDs were able to include CPZ, in the form of 1:1, 1:2 or a mixture of 1:1 and 1:2 complexes. In particular, a substituted γ-CD, sugammadex (the octasodium salt of octakis(6-deoxy-6-S-(2-carboxyethyl)-6-thio)cyclomaltooctaose), formed exclusively 1:2 complexes with an extremely high association constant of 6.37 × 109 M-2. Complexes were further characterized by heat capacity changes, one- and two-dimensional (ROESY) nuclear magnetic resonance (NMR) spectroscopy and molecular dynamics simulations. Finally, protection of CPZ against photodegradation by CDs was assessed. This was accelerated rather than reduced by complexation with CD. Altogether these results provide a molecular basis for the use of CD in delayed release formulations for CPZ.
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Affiliation(s)
- Zhiqiang Wang
- Université Paris-Saclay, CNRS, Institut Galien Paris-Saclay, 92290 Châtenay-Malabry, France
| | - David Landy
- Unité de Chimie Environnementale et Interactions sur le Vivant (UCEIV, EA 4492), SFR Condorcet FR CNRS 3417, Université du Littoral Côte d'Opale, 59140 Dunkerque, France
| | - Christina Sizun
- Université Paris-Saclay, CNRS, Institut de Chimie des Substances Naturelles, UPR 2301, 91198 Gif-sur-Yvette, France
| | - Christine Cézard
- Laboratoire de Glycochimie, des Antimicrobiens et des Agroressources, CNRS UMR 7378, Université de Picardie Jules Verne, 80000 Amiens, France
| | - Audrey Solgadi
- Université Paris-Saclay, Inserm, CNRS, Ingénierie et Plateformes au Service de l'Innovation Thérapeutique, 92290 Châtenay-Malabry, France
| | - Cédric Przybylski
- Institut Parisien de Chimie Moléculaire, CNRS UMR 8232, Sorbonne Université, 75005 Paris, France
| | - Luc de Chaisemartin
- Service d'Immunologie, Hôpital Bichat-Claude-Bernard, Assistance Publique-Hôpitaux de Paris, 75018 Paris, France; Université Paris-Saclay, Inserm, Inflammation, Microbiome and Immunosurveillance, 92290 Châtenay-Malabry, France
| | - Lars Herfindal
- Department of Clinical Science, University of Bergen, Jonas Lies Vei 87, 5009 Bergen, Norway
| | - Gillian Barratt
- Université Paris-Saclay, CNRS, Institut Galien Paris-Saclay, 92290 Châtenay-Malabry, France
| | - François-Xavier Legrand
- Université Paris-Saclay, CNRS, Institut Galien Paris-Saclay, 92290 Châtenay-Malabry, France.
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17
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Abstract
A new deep eutectic solvent (DES), based on a methylated-β-cyclodextrin and levulinic acid, exhibiting supramolecular properties is presented here for the first time.
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Affiliation(s)
- Tracy El Achkar
- Unité de Chimie Environnementale et Interactions sur le Vivant (UCEIV, UR 4492)
- SFR Condorcet FR CNRS 3417
- ULCO
- F-59140 Dunkerque
- France
| | - Tarek Moufawad
- Unité de Chimie Environnementale et Interactions sur le Vivant (UCEIV, UR 4492)
- SFR Condorcet FR CNRS 3417
- ULCO
- F-59140 Dunkerque
- France
| | - Steven Ruellan
- Unité de Chimie Environnementale et Interactions sur le Vivant (UCEIV, UR 4492)
- SFR Condorcet FR CNRS 3417
- ULCO
- F-59140 Dunkerque
- France
| | - David Landy
- Unité de Chimie Environnementale et Interactions sur le Vivant (UCEIV, UR 4492)
- SFR Condorcet FR CNRS 3417
- ULCO
- F-59140 Dunkerque
- France
| | - Hélène Greige-Gerges
- Bioactive Molecules Research Laboratory
- Faculty of Sciences
- Lebanese University
- Lebanon
| | - Sophie Fourmentin
- Unité de Chimie Environnementale et Interactions sur le Vivant (UCEIV, UR 4492)
- SFR Condorcet FR CNRS 3417
- ULCO
- F-59140 Dunkerque
- France
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18
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Ivanov AA, Falaise C, Laouer K, Hache F, Changenet P, Mironov YV, Landy D, Molard Y, Cordier S, Shestopalov MA, Haouas M, Cadot E. Size-Exclusion Mechanism Driving Host–Guest Interactions between Octahedral Rhenium Clusters and Cyclodextrins. Inorg Chem 2019; 58:13184-13194. [DOI: 10.1021/acs.inorgchem.9b02048] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Anton A. Ivanov
- Institut Lavoisier de Versailles, UMR 8180 CNRS, UVSQ, Université Paris-Saclay, Versailles, France
- Nikolaev Institute of Inorganic Chemistry, Siberian Branch of the Russian Academy of Sciences, Novosibirsk 630090, Russia
- The Federal Research Center of Fundamental and Translational Medicine, Novosibirsk 630117, Russia
| | - Clément Falaise
- Institut Lavoisier de Versailles, UMR 8180 CNRS, UVSQ, Université Paris-Saclay, Versailles, France
| | - Kevin Laouer
- Laboratoire d’Optique et Biosciences and Ecole Polytechnique, CNRS, INSERM, Institut polytechnique de Paris, Palaiseau 91128, France
| | - François Hache
- Laboratoire d’Optique et Biosciences and Ecole Polytechnique, CNRS, INSERM, Institut polytechnique de Paris, Palaiseau 91128, France
| | - Pascale Changenet
- Laboratoire d’Optique et Biosciences and Ecole Polytechnique, CNRS, INSERM, Institut polytechnique de Paris, Palaiseau 91128, France
| | - Yuri V. Mironov
- Nikolaev Institute of Inorganic Chemistry, Siberian Branch of the Russian Academy of Sciences, Novosibirsk 630090, Russia
- Novosibirsk State University, Novosibirsk 630090, Russia
| | - David Landy
- Unité de Chimie Environnementale et Interactions sur le Vivant, ULCO, Dunkerque EA 4492, France
| | - Yann Molard
- Institut des Sciences Chimiques de Rennes, UMR 6226 CNRS, Université de Rennes 1, Rennes, France
| | - Stéphane Cordier
- Institut des Sciences Chimiques de Rennes, UMR 6226 CNRS, Université de Rennes 1, Rennes, France
| | - Michael A. Shestopalov
- Nikolaev Institute of Inorganic Chemistry, Siberian Branch of the Russian Academy of Sciences, Novosibirsk 630090, Russia
- The Federal Research Center of Fundamental and Translational Medicine, Novosibirsk 630117, Russia
- Novosibirsk State University, Novosibirsk 630090, Russia
| | - Mohamed Haouas
- Institut Lavoisier de Versailles, UMR 8180 CNRS, UVSQ, Université Paris-Saclay, Versailles, France
| | - Emmanuel Cadot
- Institut Lavoisier de Versailles, UMR 8180 CNRS, UVSQ, Université Paris-Saclay, Versailles, France
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19
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Diab M, Floquet S, Haouas M, Abramov PA, López X, Landy D, Damond A, Falaise C, Guérineau V, Touboul D, Naoufal D, Cadot E. Encapsulation of Chaotropic
closo
‐Decahydrodecaborate Clusters Within Cyclodextrins: Synthesis, Solution Studies, and DFT Calculations. Eur J Inorg Chem 2019. [DOI: 10.1002/ejic.201900602] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Manal Diab
- Institut Lavoisier de Versailles, CNRS, UVSQ Université Paris‐Saclay 45 av. des Etats‐Unis 78035 Versailles France
- Laboratory of Organometallic and Coordination Chemistry, LCIO Lebanese University, Faculty of Sciences I Hadath Lebanon
| | - Sébastien Floquet
- Institut Lavoisier de Versailles, CNRS, UVSQ Université Paris‐Saclay 45 av. des Etats‐Unis 78035 Versailles France
| | - Mohamed Haouas
- Institut Lavoisier de Versailles, CNRS, UVSQ Université Paris‐Saclay 45 av. des Etats‐Unis 78035 Versailles France
| | - Pavel A. Abramov
- Nikolaiev Institute of Inorganic Chemistry SB RAS 630090 Novosibirsk Russia
- Novosibirsk State University 630090 Novosibirsk Russia
| | - Xavier López
- Departament de Química Física i Inorgànica Universitat Rovira i Virgili Marcel.lí Domingo 1 43007 Tarragona Spain
| | - David Landy
- Unité de Chimie Environnementale et Interactions sur le Vivant (UCEIV, EA 4492), ULCO Dunkerque France
| | - Aurélie Damond
- Institut Lavoisier de Versailles, CNRS, UVSQ Université Paris‐Saclay 45 av. des Etats‐Unis 78035 Versailles France
| | - Clément Falaise
- Institut Lavoisier de Versailles, CNRS, UVSQ Université Paris‐Saclay 45 av. des Etats‐Unis 78035 Versailles France
| | - Vincent Guérineau
- Institut de Chimie des Substances Naturelles CNRS UPR2301 Université Paris‐Sud, Université Paris‐Saclay Avenue de la Terrasse 91198 Gif‐sur‐Yvette Cedex France
| | - David Touboul
- Institut de Chimie des Substances Naturelles CNRS UPR2301 Université Paris‐Sud, Université Paris‐Saclay Avenue de la Terrasse 91198 Gif‐sur‐Yvette Cedex France
| | - Daoud Naoufal
- Laboratory of Organometallic and Coordination Chemistry, LCIO Lebanese University, Faculty of Sciences I Hadath Lebanon
| | - Emmanuel Cadot
- Institut Lavoisier de Versailles, CNRS, UVSQ Université Paris‐Saclay 45 av. des Etats‐Unis 78035 Versailles France
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20
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Ivanov AA, Falaise C, Landy D, Haouas M, Mironov YV, Shestopalov MA, Cadot E. Tuning the chaotropic effect as an assembly motif through one-electron transfer in a rhenium cluster. Chem Commun (Camb) 2019; 55:9951-9954. [DOI: 10.1039/c9cc05136h] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
As small change as one electron transfer within the hydrophilic rhenium cluster [{Re6Se8}(CN)6]4−/3− induces dramatic alteration in supramolecular self-assembly properties with γ-cyclodextrin as a result of chaotropic effect driven process.
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Affiliation(s)
- Anton A. Ivanov
- Institut Lavoisier de Versailles
- CNRS
- UVSQ
- Université Paris-Saclay
- Versailles
| | - Clément Falaise
- Institut Lavoisier de Versailles
- CNRS
- UVSQ
- Université Paris-Saclay
- Versailles
| | - David Landy
- Unité de Chimie Environnementale et Interactions sur le Vivant (UCEIV, EA 4492)
- ULCO
- Dunkerque
- France
| | - Mohamed Haouas
- Institut Lavoisier de Versailles
- CNRS
- UVSQ
- Université Paris-Saclay
- Versailles
| | - Yuri V. Mironov
- Nikolaev Institute of Inorganic Chemistry SB RAS
- Novosibirsk
- Russia
- Novosibirsk State University
- Novosibirsk
| | - Michael A. Shestopalov
- Nikolaev Institute of Inorganic Chemistry SB RAS
- Novosibirsk
- Russia
- The Federal Research Center of Fundamental and Translational Medicine
- Novosibirsk
| | - Emmanuel Cadot
- Institut Lavoisier de Versailles
- CNRS
- UVSQ
- Université Paris-Saclay
- Versailles
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21
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Kayouka M, Saliba E, Landy D, Greige H. Oleanolic acid: a potential chemotherapeutic agent weakened by P-glycoprotein. Toxicol Lett 2018. [DOI: 10.1016/j.toxlet.2018.06.642] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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22
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Ivanov AA, Falaise C, Abramov PA, Shestopalov MA, Kirakci K, Lang K, Moussawi MA, Sokolov MN, Naumov NG, Floquet S, Landy D, Haouas M, Brylev KA, Mironov YV, Molard Y, Cordier S, Cadot E. Host-Guest Binding Hierarchy within Redox- and Luminescence-Responsive Supramolecular Self-Assembly Based on Chalcogenide Clusters and γ-Cyclodextrin. Chemistry 2018. [DOI: 10.1002/chem.201803923] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Anton A. Ivanov
- Nikolaev Institute of Inorganic Chemistry SB RAS; 3 acad. Lavrentiev ave. 630090 Novosibirsk Russia
- The Federal Research Center of Fundamental and Translational Medicine; 2 Timakova st. 630117 Novosibirsk Russia
- Institut Lavoisier de Versailles, CNRS, UVSQ; Université Paris-Saclay; 45 avenue des Etats-Unis 78035 Versailles France
| | - Clément Falaise
- Institut Lavoisier de Versailles, CNRS, UVSQ; Université Paris-Saclay; 45 avenue des Etats-Unis 78035 Versailles France
| | - Pavel A. Abramov
- Nikolaev Institute of Inorganic Chemistry SB RAS; 3 acad. Lavrentiev ave. 630090 Novosibirsk Russia
- Novosibirsk State University; 2 Pirogova st. 630090 Novosibirsk Russia
| | - Michael A. Shestopalov
- Nikolaev Institute of Inorganic Chemistry SB RAS; 3 acad. Lavrentiev ave. 630090 Novosibirsk Russia
- The Federal Research Center of Fundamental and Translational Medicine; 2 Timakova st. 630117 Novosibirsk Russia
- Novosibirsk State University; 2 Pirogova st. 630090 Novosibirsk Russia
| | - Kaplan Kirakci
- Institute of Inorganic Chemistry of the Czech Academy of Sciences; Husinec-Řež 1001 250 68 Řež Czech Republic
| | - Kamil Lang
- Institute of Inorganic Chemistry of the Czech Academy of Sciences; Husinec-Řež 1001 250 68 Řež Czech Republic
| | - Mhamad A. Moussawi
- Institut Lavoisier de Versailles, CNRS, UVSQ; Université Paris-Saclay; 45 avenue des Etats-Unis 78035 Versailles France
| | - Maxim N. Sokolov
- Nikolaev Institute of Inorganic Chemistry SB RAS; 3 acad. Lavrentiev ave. 630090 Novosibirsk Russia
- Novosibirsk State University; 2 Pirogova st. 630090 Novosibirsk Russia
| | - Nikolay G. Naumov
- Nikolaev Institute of Inorganic Chemistry SB RAS; 3 acad. Lavrentiev ave. 630090 Novosibirsk Russia
- Novosibirsk State University; 2 Pirogova st. 630090 Novosibirsk Russia
| | - Sébastien Floquet
- Institut Lavoisier de Versailles, CNRS, UVSQ; Université Paris-Saclay; 45 avenue des Etats-Unis 78035 Versailles France
| | - David Landy
- Unité de Chimie Environnementale et, Interactions sur le Vivant (UCEIV, EA 4492); 145, Avenue Maurice Schumann, MREI 1 59140 Dunkerque France
| | - Mohamed Haouas
- Institut Lavoisier de Versailles, CNRS, UVSQ; Université Paris-Saclay; 45 avenue des Etats-Unis 78035 Versailles France
| | - Konstantin A. Brylev
- Nikolaev Institute of Inorganic Chemistry SB RAS; 3 acad. Lavrentiev ave. 630090 Novosibirsk Russia
- Novosibirsk State University; 2 Pirogova st. 630090 Novosibirsk Russia
| | - Yuri V. Mironov
- Nikolaev Institute of Inorganic Chemistry SB RAS; 3 acad. Lavrentiev ave. 630090 Novosibirsk Russia
- Novosibirsk State University; 2 Pirogova st. 630090 Novosibirsk Russia
| | - Yann Molard
- Institut des Sciences Chimiques de Rennes, UMR 6226 CNRS; Université de Rennes 1; Avenue du Général Leclerc 35042 Rennes France
| | - Stéphane Cordier
- Institut des Sciences Chimiques de Rennes, UMR 6226 CNRS; Université de Rennes 1; Avenue du Général Leclerc 35042 Rennes France
| | - Emmanuel Cadot
- Institut Lavoisier de Versailles, CNRS, UVSQ; Université Paris-Saclay; 45 avenue des Etats-Unis 78035 Versailles France
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23
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Ivanov AA, Falaise C, Abramov PA, Shestopalov MA, Kirakci K, Lang K, Moussawi MA, Sokolov MN, Naumov NG, Floquet S, Landy D, Haouas M, Brylev KA, Mironov YV, Molard Y, Cordier S, Cadot E. Host-Guest Binding Hierarchy within Redox- and Luminescence-Responsive Supramolecular Self-Assembly Based on Chalcogenide Clusters and γ-Cyclodextrin. Chemistry 2018; 24:13467-13478. [PMID: 29894019 DOI: 10.1002/chem.201802102] [Citation(s) in RCA: 39] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2018] [Revised: 06/11/2018] [Indexed: 12/19/2022]
Abstract
Water-soluble salts of anionic [Re6 Q8 (CN)6 ]4- (Q=S, Se, Te) chalcogenide octahedral rhenium clusters react with γ-cyclodextrin (γ-CD) producing a new type of inclusion compounds. Crystal structures determined through single-crystal X-ray diffraction analysis revealed supramolecular host-guest assemblies resulting from close encapsulations of the octahedral cluster within two γ-CDs. Interestingly, nature of the inner Q ligands influences strongly the host-guest conformation. The cluster [Re6 S8 (CN)6 ]4- interacts preferentially with the primary faces of the γ-CD while the bulkier clusters [Re6 Se8 (CN)6 ]4- and [Re6 Te8 (CN)6 ]4- exhibit specific interactions with the secondary faces of the cyclic host. Furthermore, analysis of the crystal packing reveals additional supramolecular interactions that lead to 2D infinite arrangements with [Re6 S8 (CN)6 ]4- or to 1D "bamboo-like" columns with [Re6 Se8 (CN)6 ]4- and [Re6 Te8 (CN)6 ]4- species. Solution studies, using multinuclear NMR methods, ESI-MS and Isothermal titration calorimetry (ITC) corroborates nicely the solid-state investigations showing that supramolecular pre-organization is retained in aqueous solution even in diluted conditions. Furthermore, ITC analysis showed that host-guest stability increases significantly ongoing from S to Te. At last, we report herein that deep inclusion alters significantly the intrinsic physical-chemical properties of the octahedral clusters, allowing redox tuning and near IR luminescence enhancement.
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Affiliation(s)
- Anton A Ivanov
- Nikolaev Institute of Inorganic Chemistry SB RAS, 3 acad. Lavrentiev ave., 630090, Novosibirsk, Russia.,The Federal Research Center of Fundamental and Translational Medicine, 2 Timakova st., 630117, Novosibirsk, Russia.,Institut Lavoisier de Versailles, CNRS, UVSQ, Université Paris-Saclay, 45 avenue des Etats-Unis, 78035, Versailles, France
| | - Clément Falaise
- Institut Lavoisier de Versailles, CNRS, UVSQ, Université Paris-Saclay, 45 avenue des Etats-Unis, 78035, Versailles, France
| | - Pavel A Abramov
- Nikolaev Institute of Inorganic Chemistry SB RAS, 3 acad. Lavrentiev ave., 630090, Novosibirsk, Russia.,Novosibirsk State University, 2 Pirogova st., 630090, Novosibirsk, Russia
| | - Michael A Shestopalov
- Nikolaev Institute of Inorganic Chemistry SB RAS, 3 acad. Lavrentiev ave., 630090, Novosibirsk, Russia.,The Federal Research Center of Fundamental and Translational Medicine, 2 Timakova st., 630117, Novosibirsk, Russia.,Novosibirsk State University, 2 Pirogova st., 630090, Novosibirsk, Russia
| | - Kaplan Kirakci
- Institute of Inorganic Chemistry of the Czech Academy of Sciences, Husinec-Řež 1001, 250 68, Řež, Czech Republic
| | - Kamil Lang
- Institute of Inorganic Chemistry of the Czech Academy of Sciences, Husinec-Řež 1001, 250 68, Řež, Czech Republic
| | - Mhamad A Moussawi
- Institut Lavoisier de Versailles, CNRS, UVSQ, Université Paris-Saclay, 45 avenue des Etats-Unis, 78035, Versailles, France
| | - Maxim N Sokolov
- Nikolaev Institute of Inorganic Chemistry SB RAS, 3 acad. Lavrentiev ave., 630090, Novosibirsk, Russia.,Novosibirsk State University, 2 Pirogova st., 630090, Novosibirsk, Russia
| | - Nikolay G Naumov
- Nikolaev Institute of Inorganic Chemistry SB RAS, 3 acad. Lavrentiev ave., 630090, Novosibirsk, Russia.,Novosibirsk State University, 2 Pirogova st., 630090, Novosibirsk, Russia
| | - Sébastien Floquet
- Institut Lavoisier de Versailles, CNRS, UVSQ, Université Paris-Saclay, 45 avenue des Etats-Unis, 78035, Versailles, France
| | - David Landy
- Unité de Chimie Environnementale et, Interactions sur le Vivant (UCEIV, EA 4492), 145, Avenue Maurice Schumann, MREI 1, 59140, Dunkerque, France
| | - Mohamed Haouas
- Institut Lavoisier de Versailles, CNRS, UVSQ, Université Paris-Saclay, 45 avenue des Etats-Unis, 78035, Versailles, France
| | - Konstantin A Brylev
- Nikolaev Institute of Inorganic Chemistry SB RAS, 3 acad. Lavrentiev ave., 630090, Novosibirsk, Russia.,Novosibirsk State University, 2 Pirogova st., 630090, Novosibirsk, Russia
| | - Yuri V Mironov
- Nikolaev Institute of Inorganic Chemistry SB RAS, 3 acad. Lavrentiev ave., 630090, Novosibirsk, Russia.,Novosibirsk State University, 2 Pirogova st., 630090, Novosibirsk, Russia
| | - Yann Molard
- Institut des Sciences Chimiques de Rennes, UMR 6226 CNRS, Université de Rennes 1, Avenue du Général Leclerc, 35042, Rennes, France
| | - Stéphane Cordier
- Institut des Sciences Chimiques de Rennes, UMR 6226 CNRS, Université de Rennes 1, Avenue du Général Leclerc, 35042, Rennes, France
| | - Emmanuel Cadot
- Institut Lavoisier de Versailles, CNRS, UVSQ, Université Paris-Saclay, 45 avenue des Etats-Unis, 78035, Versailles, France
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24
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Mathiron D, Iori R, Pilard S, Soundara Rajan T, Landy D, Mazzon E, Rollin P, Djedaïni-Pilard F. A Combined Approach of NMR and Mass Spectrometry Techniques Applied to the α-Cyclodextrin/Moringin Complex for a Novel Bioactive Formulation †. Molecules 2018; 23:E1714. [PMID: 30011859 PMCID: PMC6099948 DOI: 10.3390/molecules23071714] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2018] [Revised: 06/30/2018] [Accepted: 07/10/2018] [Indexed: 12/27/2022] Open
Abstract
Moringin, obtained via enzymatic conversion of the glucosinolate precursor glucomoringin, is an uncommon member of the isothiocyanate class, and has been proven to possess a broad range of biological activities such as antitumor activity, protection against neurodegenerative disorders and bactericidal effects. Since moringin is weakly soluble in water and unstable in aqueous medium, cyclodextrins (CDs) were considered for the development of a new moringin formulation, with a view to improving its solubility and stability in aqueous solution for use as an anti-inflammatory. A combined structural study using proton nuclear magnetic resonance (¹H-NMR), diffusion-ordered spectroscopy (DOSY) and ion mobility mass spectrometry (IM-MS) is reported, highlighting the formation of a 1:1 α-CD/moringin inclusion complex. The association constant K was determined (1300 M-1 at 300 K). Completion of the structural characterization was performed by T-ROESY and MS/MS experiments, which evidenced the mode of penetration of moringin into α-CD. Finally, the "chaperone-like" properties of α-CD with respect to the stability of moringin have been highlighted.
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Affiliation(s)
- David Mathiron
- Plateforme Analytique, Institut de Chimie de Picardie FR 3085 CNRS, Université de Picardie Jules Verne, 33 rue St Leu, 80039 Amiens, France.
| | - Renato Iori
- Consiglio per la Ricerca in Agricoltura e L'analisi Dell'economia Agraria, Centro di Ricerca Agricoltura e Ambiente (CREA-AA), Via di Corticella 133, 40128 Bologna, Italy.
| | - Serge Pilard
- Plateforme Analytique, Institut de Chimie de Picardie FR 3085 CNRS, Université de Picardie Jules Verne, 33 rue St Leu, 80039 Amiens, France.
| | - Thangavelu Soundara Rajan
- Istituti di Ricovero e Cura a Carattere Scientifico, IRCCS Centro Neurolesi "Bonino-Pulejo", Via Provinciale Palermo, Contrada Casazza, 98124 Messina, Italy.
| | - David Landy
- Unité de Chimie Environnementale et Interactions sur le Vivant (UCEIV, EA 4492), ULCO, F-59140 Dunkerque, France.
| | - Emanuela Mazzon
- Istituti di Ricovero e Cura a Carattere Scientifico, IRCCS Centro Neurolesi "Bonino-Pulejo", Via Provinciale Palermo, Contrada Casazza, 98124 Messina, Italy.
| | - Patrick Rollin
- Institut de Chimie Organique et Analytique (ICOA), Université d'Orléans et CNRS, UMR 7311, BP 6759, F-45067 Orléans, France.
| | - Florence Djedaïni-Pilard
- Laboratoire de Glycochimie, des Antimicrobiens et des Agroressources UMR 7378, Université de Picardie Jules Verne, 33 rue St Leu, 80039 Amiens, France.
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25
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Wurcel AG, Burke D, Skeer M, Landy D, Heimer R, Wong JB, Chui KKH, Stopka TJ. Sex work, injection drug use, and abscesses: Associations in women, but not men. Drug Alcohol Depend 2018; 185:293-297. [PMID: 29482054 PMCID: PMC5991097 DOI: 10.1016/j.drugalcdep.2017.12.028] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/31/2017] [Revised: 12/13/2017] [Accepted: 12/19/2017] [Indexed: 10/18/2022]
Abstract
BACKGROUND Abscesses commonly occur among people who inject drugs (PWID). However, whether the risks are comparable between males and females, and the impact of sex work on abscess risk is unclear. The goal of this study was to examine the contemporary associations of gender and sex work with the risk of abscesses in PWID. METHODS Combining data from two cross-sectional studies conducted in the Greater Boston Area with people at risk for HIV and hepatitis C virus (HCV), we used the following inclusion criteria: age 18-45 years and report of illicit or non-prescription drug injection within the 30 days prior to the survey. Information on demographics, injection-mediated risks, and sexual behaviors was collected using Audio Computer-Assisted Self-Interview Software. Multivariable logistic regressions were used to model associations. RESULTS The study sample included 298 people including 30% were female. Females were more likely than men to report sex work (28% vs. 16%, p = .012) and abscess during their lifetime (55% vs. 37% p = .004). Among the females, engaging in sex work increased by >5-fold the odds of reporting abscesses [Adjusted odds ratio 5.42; 95% CI: 1.27, 23.10]. There was no association between sex work and abscesses among men. DISCUSSION We found a female-specific association between sex work, injection drug use, and abscesses among PWID. Although the cross-sectional designs precluded causal inferences, longitudinal studies could enhance understanding of gender-associated risks for abscesses and inform the development of harm reduction interventions.
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Affiliation(s)
- Alysse G. Wurcel
- Department of Medicine, Division of Geographic Medicine and Infectious Diseases, Tufts Medical Center, Boston, MA, United States,Department of Public Health and Community Medicine, Tufts University School of Medicine, Boston, MA, United States
| | - Deirdre Burke
- Department of Medicine, Division of Geographic Medicine and Infectious Diseases, Tufts Medical Center, Boston, MA, United States
| | - Margie Skeer
- Department of Public Health and Community Medicine, Tufts University School of Medicine, Boston, MA, United States
| | - David Landy
- Department of Public Health and Community Medicine, Tufts University School of Medicine, Boston, MA, United States
| | - Robert Heimer
- Department of Epidemiology of Microbial Diseases, Yale University School of Public Health, New Haven, CT, United States
| | - John B. Wong
- Division of Clinical Decision Making, Tufts Medical Center, Tufts University School of Medicine, Boston, MA, United States
| | - Kenneth K. H. Chui
- Department of Public Health and Community Medicine, Tufts University School of Medicine, Boston, MA, United States
| | - Thomas J. Stopka
- Department of Public Health and Community Medicine, Tufts University School of Medicine, Boston, MA, United States
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26
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Oliva E, Mathiron D, Bertaut E, Landy D, Cailleu D, Pilard S, Clément C, Courot E, Bonnet V, Djedaïni-Pilard F. Physico-chemical studies of resveratrol, methyl-jasmonate and cyclodextrin interactions: an approach to resveratrol bioproduction optimization. RSC Adv 2018; 8:1528-1538. [PMID: 35685942 PMCID: PMC9128506 DOI: 10.1039/c7ra11619e] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2017] [Accepted: 12/18/2017] [Indexed: 12/21/2022] Open
Abstract
trans-Resveratrol (RSV) is a natural phenolic molecule of the stilbene family known for its anti-oxidant properties in the field of nutraceuticals and cosmetics. Its production by grapevine cell suspensions is induced by the addition to the culture medium of elicitor compounds, methyl jasmonate (MeJA) and cyclodextrins (CDs). Physico-chemical studies were performed to understand the mechanism of action of CDs on this bioproduction of RSV. Inclusion complexes of RSV in CDs were first observed and then interactions with MeJA were identified using various analytical techniques such as UV and nuclear magnetic resonance (NMR) spectroscopies, mass spectrometry (MS) and isothermal titration calorimetry (ITC). The role of cyclodextrins in the bioproduction of resveratrol in the presence of methyl-jasmonate is rationalized, leading to solutions for the improvement of bioproduction.![]()
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27
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Abstract
Formal mathematical reasoning provides an illuminating test case for understanding how humans can think about things that they did not evolve to comprehend. People engage in algebraic reasoning by (1) creating new assemblies of perception and action routines that evolved originally for other purposes (reuse), (2) adapting those routines to better fit the formal requirements of mathematics (adaptation), and (3) designing cultural tools that mesh well with our perception-action routines to create cognitive systems capable of mathematical reasoning (invention). We describe evidence that a major component of proficiency at algebraic reasoning is Rigged Up Perception-Action Systems (RUPAS), via which originally demanding, strategically controlled cognitive tasks are converted into learned, automatically executed perception and action routines. Informed by RUPAS, we have designed, implemented, and partially assessed a computer-based algebra tutoring system called Graspable Math with an aim toward training learners to develop perception-action routines that are intuitive, efficient, and mathematically valid.
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28
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Moussawi MA, Leclerc-Laronze N, Floquet S, Abramov PA, Sokolov MN, Cordier S, Ponchel A, Monflier E, Bricout H, Landy D, Haouas M, Marrot J, Cadot E. Polyoxometalate, Cationic Cluster, and γ-Cyclodextrin: From Primary Interactions to Supramolecular Hybrid Materials. J Am Chem Soc 2017; 139:12793-12803. [DOI: 10.1021/jacs.7b07317] [Citation(s) in RCA: 105] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Mhamad Aly Moussawi
- Institut
Lavoisier de Versailles, UMR 8180, UVSQ, Université Paris-Saclay, 78035 Versailles, France
| | - Nathalie Leclerc-Laronze
- Institut
Lavoisier de Versailles, UMR 8180, UVSQ, Université Paris-Saclay, 78035 Versailles, France
| | - Sébastien Floquet
- Institut
Lavoisier de Versailles, UMR 8180, UVSQ, Université Paris-Saclay, 78035 Versailles, France
| | - Pavel A. Abramov
- Nikolaev
Institute of Inorganic Chemistry, Siberian Branch of the Russian Academy of Sciences, Novosibirsk 630090, Russia
- Novosibirsk State University, Novosibirsk 630090, Russia
| | - Maxim N. Sokolov
- Nikolaev
Institute of Inorganic Chemistry, Siberian Branch of the Russian Academy of Sciences, Novosibirsk 630090, Russia
- Novosibirsk State University, Novosibirsk 630090, Russia
| | - Stéphane Cordier
- Institut
des Sciences Chimiques de Rennes, UMR 6226, Université de Rennes 1, 35042 Rennes, France
| | - Anne Ponchel
- Unité
de Catalyse et Chimie du Solide, UMR 8181, Univ. Artois, CNRS, Centrale
Lille, ENSCL, Univ. Lille 1, 62300 Lens, France
| | - Eric Monflier
- Unité
de Catalyse et Chimie du Solide, UMR 8181, Univ. Artois, CNRS, Centrale
Lille, ENSCL, Univ. Lille 1, 62300 Lens, France
| | - Hervé Bricout
- Unité
de Catalyse et Chimie du Solide, UMR 8181, Univ. Artois, CNRS, Centrale
Lille, ENSCL, Univ. Lille 1, 62300 Lens, France
| | - David Landy
- Unité
de Chimie Environnementale et Interactions sur le Vivant EA 4492,
SFR Condorcet FR CNRS 3417, Université du Littoral Côte d’Opale, 59140 Dunkerque, France
| | - Mohamed Haouas
- Institut
Lavoisier de Versailles, UMR 8180, UVSQ, Université Paris-Saclay, 78035 Versailles, France
| | - Jérôme Marrot
- Institut
Lavoisier de Versailles, UMR 8180, UVSQ, Université Paris-Saclay, 78035 Versailles, France
| | - Emmanuel Cadot
- Institut
Lavoisier de Versailles, UMR 8180, UVSQ, Université Paris-Saclay, 78035 Versailles, France
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29
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Azzi J, Danjou PE, Landy D, Ruellan S, Auezova L, Greige-Gerges H, Fourmentin S. The effect of cyclodextrin complexation on the solubility and photostability of nerolidol as pure compound and as main constituent of cabreuva essential oil. Beilstein J Org Chem 2017; 13:835-844. [PMID: 28546841 PMCID: PMC5433144 DOI: 10.3762/bjoc.13.84] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2016] [Accepted: 04/07/2017] [Indexed: 12/03/2022] Open
Abstract
Nerolidol (Ner), a major component of many plant essential oils, is known for its various biological properties. However, the low solubility of Ner in water and its susceptibility to degradation limit its application. The aim of our study was to improve the solubility and photostability of Ner through its encapsulation in different cyclodextrins (CDs). The formation constants of cis-, trans-Ner and their commercial mixture with various CDs (α-CD, β-CD, γ-CD, HP-β-CD, RAMEB, CRYSMEB and SBE-β-CD) were determined by phase solubility studies and confirmed by the spectral displacement UV-visible method. The solubility of cabreuva essential oil (EO) rich in trans-Ner was also evaluated by total organic carbon (TOC) analysis. The encapsulation efficiency (EE %) of Ner in HP-β-CD solid complexes was assessed by HPLC. The structural characterization of CD/trans-Ner inclusion complex was then conducted by NMR spectroscopy followed by molecular modelling studies. The effect of encapsulation on the Ner photostability was also carried out over time under UVB irradiation. AL-type phase-solubility diagrams were obtained, suggesting the formation of 1:1 CD/Ner inclusion complexes. The solubility of Ner was enhanced by approximately 70-fold in the presence of 10 mM HP-β-CD. Moreover, high EE % values were obtained for 5:1 and 10:1 HP-β-CD:Ner molar ratios. NMR and molecular modelling studies revealed the most stable structure for trans-Ner inside the CD cavity with the OH group oriented towards the wider rim of the CD. Finally, CD encapsulation of Ner as pure compound or as main component of the cabreuva EO, protected it from degradation. This effect was more pronounced as the concentration of CD increased. These findings suggested that CDs are promising encapsulating carriers for Ner by enhancing its solubility and stability and thereby its application in food industry.
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Affiliation(s)
- Joyce Azzi
- Bioactive Molecules Research Group, Doctoral School of Sciences and Technologies, Faculty of Sciences, Jdaidet El-Matn, Lebanese University, Lebanon.,Unité de Chimie Environnementale et Interactions sur le Vivant (UCEIV, EA 4492), SFR Condorcet FR CNRS 3417, ULCO, F-59140 Dunkerque, France
| | - Pierre-Edouard Danjou
- Unité de Chimie Environnementale et Interactions sur le Vivant (UCEIV, EA 4492), SFR Condorcet FR CNRS 3417, ULCO, F-59140 Dunkerque, France
| | - David Landy
- Unité de Chimie Environnementale et Interactions sur le Vivant (UCEIV, EA 4492), SFR Condorcet FR CNRS 3417, ULCO, F-59140 Dunkerque, France
| | - Steven Ruellan
- Unité de Chimie Environnementale et Interactions sur le Vivant (UCEIV, EA 4492), SFR Condorcet FR CNRS 3417, ULCO, F-59140 Dunkerque, France
| | - Lizette Auezova
- Bioactive Molecules Research Group, Doctoral School of Sciences and Technologies, Faculty of Sciences, Jdaidet El-Matn, Lebanese University, Lebanon
| | - Hélène Greige-Gerges
- Bioactive Molecules Research Group, Doctoral School of Sciences and Technologies, Faculty of Sciences, Jdaidet El-Matn, Lebanese University, Lebanon
| | - Sophie Fourmentin
- Unité de Chimie Environnementale et Interactions sur le Vivant (UCEIV, EA 4492), SFR Condorcet FR CNRS 3417, ULCO, F-59140 Dunkerque, France
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30
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Leblond J, Potier J, Menuel S, Bricout H, Machut-Binkowski C, Landy D, Tilloy S, Monflier E, Hapiot F. Water-soluble phosphane-substituted cyclodextrin as an effective bifunctional additive in hydroformylation of higher olefins. Catal Sci Technol 2017. [DOI: 10.1039/c7cy01108c] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Cyclodextrins substituted with a sulfophenyl phosphane show an excellent recognition ability towards higher olefins in aqueous biphasic Rh-catalyzed hydroformylation.
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Affiliation(s)
- J. Leblond
- Univ. Artois
- CNRS
- Centrale Lille
- ENSCL
- Univ. Lille
| | - J. Potier
- Univ. Lille
- CNRS
- INRA
- ENSCL
- UMR 8207 – UMET – Unité Matériaux et Transformations
| | - S. Menuel
- Univ. Artois
- CNRS
- Centrale Lille
- ENSCL
- Univ. Lille
| | - H. Bricout
- Univ. Artois
- CNRS
- Centrale Lille
- ENSCL
- Univ. Lille
| | | | - D. Landy
- Univ. Littoral
- Unité de Chimie Environnementale et Interactions sur le Vivant (UCEIV, EA 4492)
- SFR Condorcet FR CNRS 3417
- ULCO
- F-59140 Dunkerque
| | - S. Tilloy
- Univ. Artois
- CNRS
- Centrale Lille
- ENSCL
- Univ. Lille
| | - E. Monflier
- Univ. Artois
- CNRS
- Centrale Lille
- ENSCL
- Univ. Lille
| | - F. Hapiot
- Univ. Artois
- CNRS
- Centrale Lille
- ENSCL
- Univ. Lille
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31
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Abstract
Nootkatone (NO) is a sesquiterpenoid volatile flavor, used in foods, cosmetics and pharmaceuticals, possessing also insect repellent activity. Its application is limited because of its low aqueous solubility and stability; this could be resolved by encapsulation in cyclodextrins (CDs). This study evaluated the encapsulation of NO by CDs using phase solubility studies, Isothermal Titration Calorimetry, Nuclear Magnetic Resonance spectroscopy and molecular modeling. Solid CD/NO inclusion complex was prepared and characterized for encapsulation efficiency and loading capacity using UV-Visible. Thermal properties were investigated by thermogravimetric-differential thermal analysis and release studies were performed using multiple headspace extraction. Formation constants (Kf) proved the formation of stable inclusion complexes. NO aqueous solubility, photo- and thermal stability were enhanced and the release could be insured from solid complex in aqueous solution. This suggests that CDs are promising carrier to improve NO properties and, consequently, to enlarge its use in foods, cosmetics, pharmaceuticals and agrochemicals preparations.
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Affiliation(s)
- Miriana Kfoury
- Unité de Chimie Environnementale et Interactions sur le Vivant (UCEIV, EA 4492), SFR Condorcet FR CNRS 3417, ULCO, F-59140 Dunkerque, France; Bioactive Molecules Research Group, Faculty of Sciences, Section II, Lebanese University, Lebanon
| | - David Landy
- Unité de Chimie Environnementale et Interactions sur le Vivant (UCEIV, EA 4492), SFR Condorcet FR CNRS 3417, ULCO, F-59140 Dunkerque, France
| | - Steven Ruellan
- Unité de Chimie Environnementale et Interactions sur le Vivant (UCEIV, EA 4492), SFR Condorcet FR CNRS 3417, ULCO, F-59140 Dunkerque, France
| | - Lizette Auezova
- Bioactive Molecules Research Group, Faculty of Sciences, Section II, Lebanese University, Lebanon
| | - Hélène Greige-Gerges
- Bioactive Molecules Research Group, Faculty of Sciences, Section II, Lebanese University, Lebanon
| | - Sophie Fourmentin
- Unité de Chimie Environnementale et Interactions sur le Vivant (UCEIV, EA 4492), SFR Condorcet FR CNRS 3417, ULCO, F-59140 Dunkerque, France.
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Marghetis T, Landy D, Goldstone RL. Mastering algebra retrains the visual system to perceive hierarchical structure in equations. Cogn Res Princ Implic 2016; 1:25. [PMID: 28180176 PMCID: PMC5256452 DOI: 10.1186/s41235-016-0020-9] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/21/2016] [Accepted: 10/12/2016] [Indexed: 11/10/2022]
Abstract
Formal mathematics is a paragon of abstractness. It thus seems natural to assume that the mathematical expert should rely more on symbolic or conceptual processes, and less on perception and action. We argue instead that mathematical proficiency relies on perceptual systems that have been retrained to implement mathematical skills. Specifically, we investigated whether the visual system-in particular, object-based attention-is retrained so that parsing algebraic expressions and evaluating algebraic validity are accomplished by visual processing. Object-based attention occurs when the visual system organizes the world into discrete objects, which then guide the deployment of attention. One classic signature of object-based attention is better perceptual discrimination within, rather than between, visual objects. The current study reports that object-based attention occurs not only for simple shapes but also for symbolic mathematical elements within algebraic expressions-but only among individuals who have mastered the hierarchical syntax of algebra. Moreover, among these individuals, increased object-based attention within algebraic expressions is associated with a better ability to evaluate algebraic validity. These results suggest that, in mastering the rules of algebra, people retrain their visual system to represent and evaluate abstract mathematical structure. We thus argue that algebraic expertise involves the regimentation and reuse of evolutionarily ancient perceptual processes. Our findings implicate the visual system as central to learning and reasoning in mathematics, leading us to favor educational approaches to mathematics and related STEM fields that encourage students to adapt, not abandon, their use of perception.
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Affiliation(s)
- Tyler Marghetis
- Department of Psychological and Brain Sciences, Indiana University, Bloomington, IN 47405-7007 USA
| | - David Landy
- Department of Psychological and Brain Sciences, Indiana University, Bloomington, IN 47405-7007 USA
| | - Robert L Goldstone
- Department of Psychological and Brain Sciences, Indiana University, Bloomington, IN 47405-7007 USA
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Abstract
Spatial memory research has attributed systematic bias in location estimates to a combination of a noisy memory trace with a prior structure that people impose on the space. Little is known about intraindividual stability and interindividual variation in these patterns of bias. In the current work, we align recent empirical and theoretical work on working memory capacity limits and spatial memory bias to generate the prediction that those with lower working memory capacity will show greater bias in memory of the location of a single item. Reanalyzing data from a large study of cognitive aging, we find support for this prediction. Fitting separate models to individuals' data revealed a surprising variety of strategies. Some were consistent with Bayesian models of spatial category use, however roughly half of participants biased estimates outward in a way not predicted by current models and others seemed to combine these strategies. These analyses highlight the importance of studying individuals when developing general models of cognition. (PsycINFO Database Record
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Affiliation(s)
| | - David Landy
- Department of Psychological and Brain Sciences, Indiana University
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Junthip J, Tabary N, Chai F, Leclercq L, Maton M, Cazaux F, Neut C, Paccou L, Guinet Y, Staelens JN, Bria M, Landy D, Hédoux A, Blanchemain N, Martel B. Layer-by-layer coating of textile with two oppositely charged cyclodextrin polyelectrolytes for extended drug delivery. J Biomed Mater Res A 2016; 104:1408-24. [DOI: 10.1002/jbm.a.35674] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2015] [Revised: 01/25/2016] [Accepted: 01/29/2016] [Indexed: 11/11/2022]
Affiliation(s)
- Jatupol Junthip
- Université Lille 1, Unité Matériaux Et Transformations (UMET) UMR CNRS 8207; Villeneuve D'ascq France
| | - Nicolas Tabary
- Université Lille 1, Unité Matériaux Et Transformations (UMET) UMR CNRS 8207; Villeneuve D'ascq France
| | - Feng Chai
- INSERM U1008, Controlled Drug Delivery Systems and Biomaterials; Lille France
| | - Laurent Leclercq
- Université De Montpellier, Institut Des Biomolécules Max Mousseron (IBMM), UMR CNRS 5247; Montpellier France
| | - Mickael Maton
- INSERM U1008, Controlled Drug Delivery Systems and Biomaterials; Lille France
| | - Frederic Cazaux
- Université Lille 1, Unité Matériaux Et Transformations (UMET) UMR CNRS 8207; Villeneuve D'ascq France
| | - Christel Neut
- Inserm U995-Team 1, Faculté Des Sciences Pharmaceutiques Et Biologiques; Lille France
| | - Laurent Paccou
- Université Lille 1, Unité Matériaux Et Transformations (UMET) UMR CNRS 8207; Villeneuve D'ascq France
| | - Yannick Guinet
- Université Lille 1, Unité Matériaux Et Transformations (UMET) UMR CNRS 8207; Villeneuve D'ascq France
| | - Jean-Noel Staelens
- Université Lille 1, Unité Matériaux Et Transformations (UMET) UMR CNRS 8207; Villeneuve D'ascq France
| | - Marc Bria
- Université Lille 1, Centre Commun De Mesures RMN; Villeneuve D'ascq France
| | - David Landy
- Université Du Littoral Côte D'opale, UCEIV; Dunkerque France
| | - Alain Hédoux
- Université Lille 1, Unité Matériaux Et Transformations (UMET) UMR CNRS 8207; Villeneuve D'ascq France
| | - Nicolas Blanchemain
- INSERM U1008, Controlled Drug Delivery Systems and Biomaterials; Lille France
| | - Bernard Martel
- Université Lille 1, Unité Matériaux Et Transformations (UMET) UMR CNRS 8207; Villeneuve D'ascq France
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Landy D, Charlesworth A, Ottmar E. Categories of Large Numbers in Line Estimation. Cogn Sci 2016; 41:326-353. [PMID: 26888051 DOI: 10.1111/cogs.12342] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2015] [Revised: 08/26/2015] [Accepted: 09/29/2015] [Indexed: 01/29/2023]
Abstract
How do people stretch their understanding of magnitude from the experiential range to the very large quantities and ranges important in science, geopolitics, and mathematics? This paper empirically evaluates how and whether people make use of numerical categories when estimating relative magnitudes of numbers across many orders of magnitude. We hypothesize that people use scale words-thousand, million, billion-to carve the large number line into categories, stretching linear responses across items within each category. If so, discontinuities in position and response time are expected near the boundaries between categories. In contrast to previous work (Landy, Silbert, & Goldin, 2013) that suggested only that a minority of college undergraduates employed categorical boundaries, we find that discontinuities near category boundaries occur in most or all participants, but that accurate and inaccurate participants respond in opposite ways to category boundaries. Accurate participants highlight contrasts within a category, whereas inaccurate participants adjust their responses toward category centers.
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Diop A, Diop YM, Thiaré DD, Cazier F, Sarr SO, Kasprowiak A, Landy D, Delattre F. Monitoring survey of the use patterns and pesticide residues on vegetables in the Niayes zone, Senegal. Chemosphere 2016; 144:1715-21. [PMID: 26519803 DOI: 10.1016/j.chemosphere.2015.10.058] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/12/2015] [Revised: 10/11/2015] [Accepted: 10/13/2015] [Indexed: 05/25/2023]
Abstract
The main objective of this work was to determine the impact of pesticide use practices on vegetables contamination in the Niayes zone of Dakar. A preliminary survey involving 200 farmers, showed the application of pesticides belonging to different groups on vegetable crops. Use practices in terms of application intervals and methods, measuring tools and dosage were not in compliance with good agricultural practices. In view of survey results, investigations on vegetable contamination were conducted. Therefore, 175 vegetable samples including cabbage (31 samples), lettuce (88 samples), tomato (57 samples) collected from four sites of the Niayes zone during four campaigns, were analyzed for residues of 21 pesticides, eighteen of which (18) were cited to be used by farmers. The results indicated that 65% of tomato samples, 71% of lettuce and 93% of cabbage contained one or more detectable residues. Among the monitored pesticides dicofol, chlorpyrifos, DDTs, dimethoate, and λ-cyhalothrin were the most predominant, found in at least 35% of samples for each vegetable. The frequencies of pesticide detection were, generally in agreement with the citation frequencies. The results provided important information on vegetable contamination status and pointed an urgent need to control pesticide use.
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Affiliation(s)
- Amadou Diop
- Laboratoire de Chimie Analytique et Bromatologie (LCAB), Faculté de Médecine, de Pharmacie et d'Odontologie, UCAD, BP 5005, Dakar, Senegal; Unité de Chimie Environnementale et Interactions sur le Vivant (UCEIV), ULCO, BP 59140, Dunkerque, France.
| | - Yérim M Diop
- Laboratoire de Chimie Analytique et Bromatologie (LCAB), Faculté de Médecine, de Pharmacie et d'Odontologie, UCAD, BP 5005, Dakar, Senegal
| | - Diène D Thiaré
- Laboratoire de Photochimie et d'Analyses (LPA), UCAD, BP 5000, Dakar, Senegal
| | - Fabrice Cazier
- Centre Commun de Mesures (CCM), ULCO, BP 59140, Dunkerque, France
| | - Serigne O Sarr
- Laboratoire de Chimie Analytique et Bromatologie (LCAB), Faculté de Médecine, de Pharmacie et d'Odontologie, UCAD, BP 5005, Dakar, Senegal
| | | | - David Landy
- Unité de Chimie Environnementale et Interactions sur le Vivant (UCEIV), ULCO, BP 59140, Dunkerque, France
| | - François Delattre
- Unité de Chimie Environnementale et Interactions sur le Vivant (UCEIV), ULCO, BP 59140, Dunkerque, France
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Kfoury M, Landy D, Ruellan S, Auezova L, Greige-Gerges H, Fourmentin S. Determination of formation constants and structural characterization of cyclodextrin inclusion complexes with two phenolic isomers: carvacrol and thymol. Beilstein J Org Chem 2016; 12:29-42. [PMID: 26877806 PMCID: PMC4734404 DOI: 10.3762/bjoc.12.5] [Citation(s) in RCA: 43] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2015] [Accepted: 12/17/2015] [Indexed: 12/12/2022] Open
Abstract
Carvacrol and thymol have been widely studied for their ability to control food spoilage and to extend shelf-life of food products due to their antimicrobial and antioxidant activities. However, they suffer from poor aqueous solubility and pronounced flavoring ability that limit their application in food systems. These drawbacks could be surpassed by encapsulation in cyclodextrins (CDs). Applications of their inclusion complexes with CDs were reported without investigating the inclusion phenomenon in deep. In this study, inclusion complexes were characterized in terms of formation constants (Kf), complexation efficiency (CE), CD:guest molar ratio and increase in bulk formulation by using an UV–visible competitive method, phase solubility studies as well as 1H and DOSY 1H NMR titration experiments. For the first time, a new algorithmic treatment that combines the chemical shifts and diffusion coefficients variations for all guest protons was applied to calculate Kf. The position of the hydroxy group in carvacrol and thymol did not affect the stoichiometry of the inclusion complexes but led to a different binding stability with CDs. 2D ROESY NMR experiments were also performed to prove the encapsulation and illustrate the stable 3D conformation of the inclusion complexes. The structural investigation was accomplished with molecular modeling studies. Finally, the radical scavenging activity of carvacrol and thymol was evaluated by the ABTS radical scavenging assay. An improvement of this activity was observed upon encapsulation. Taken together, these results evidence that the encapsulation in CDs could be valuable for applications of carvacrol and thymol in food.
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Affiliation(s)
- Miriana Kfoury
- Bioactive Molecules Research Group, Doctoral School of Science and Technology, Department of Chemistry and Biochemistry, Faculty of Sciences, section II, Lebanese University, Lebanon; Unité de Chimie Environnementale et Interactions sur le Vivant (UCEIV, EA 4492), ULCO, F-59140 Dunkerque, France
| | - David Landy
- Unité de Chimie Environnementale et Interactions sur le Vivant (UCEIV, EA 4492), ULCO, F-59140 Dunkerque, France
| | - Steven Ruellan
- Unité de Chimie Environnementale et Interactions sur le Vivant (UCEIV, EA 4492), ULCO, F-59140 Dunkerque, France
| | - Lizette Auezova
- Bioactive Molecules Research Group, Doctoral School of Science and Technology, Department of Chemistry and Biochemistry, Faculty of Sciences, section II, Lebanese University, Lebanon
| | - Hélène Greige-Gerges
- Bioactive Molecules Research Group, Doctoral School of Science and Technology, Department of Chemistry and Biochemistry, Faculty of Sciences, section II, Lebanese University, Lebanon
| | - Sophie Fourmentin
- Unité de Chimie Environnementale et Interactions sur le Vivant (UCEIV, EA 4492), ULCO, F-59140 Dunkerque, France
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Delattre F, Cazier-Dennin F, Leleu L, Dewaele D, Landy D, Mallard I, Danjou PE. Recognition of iron ions by carbazole-desferrioxamine fluorescent sensor and its application in total iron detection in airbone particulate matter. Talanta 2015; 144:451-5. [PMID: 26452847 DOI: 10.1016/j.talanta.2015.06.071] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2015] [Revised: 06/22/2015] [Accepted: 06/26/2015] [Indexed: 01/25/2023]
Abstract
This work reports on an efficient microwave irradiation synthesis of a new fluorescent chemosensor based on desferrioxamine B (DFO-B) and carbazole moiety. Furthermore, this novel chemosensor was employed for a comparative study of real environmental samples of airbone particulate matter collected from Dunkirk (Northern of France). Among selected relevant metal cations present in its airbone particulate matter, such as Na(+), K(+), Mg(2+), Ca(2+), Al(3+), Cr(3+), Mn(2+) and Zn(2+), this molecular device proved to be outstandingly sensitive toward Fe(3+) with a limit of detection of 1.49 ppb (2.1×10(-8) M) in methanol allowing the estimation of total iron in atmospheric particles.
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Affiliation(s)
- François Delattre
- Unité de Chimie Environnementale et Interactions sur le Vivant (UCEIV)-EA 4492, Université du Littoral Côte d'Opale, 145 Avenue Maurice Schumann, MREI 1, 59140 Dunkerque, France
| | - Francine Cazier-Dennin
- Unité de Chimie Environnementale et Interactions sur le Vivant (UCEIV)-EA 4492, Université du Littoral Côte d'Opale, 145 Avenue Maurice Schumann, MREI 1, 59140 Dunkerque, France
| | - Ludovic Leleu
- Unité de Chimie Environnementale et Interactions sur le Vivant (UCEIV)-EA 4492, Université du Littoral Côte d'Opale, 145 Avenue Maurice Schumann, MREI 1, 59140 Dunkerque, France
| | - Dorothée Dewaele
- Centre Commun de Mesures, Université du Littoral Côte d'Opale, 145 Avenue Maurice Schumann, MREI 1, 59140 Dunkerque, France
| | - David Landy
- Unité de Chimie Environnementale et Interactions sur le Vivant (UCEIV)-EA 4492, Université du Littoral Côte d'Opale, 145 Avenue Maurice Schumann, MREI 1, 59140 Dunkerque, France
| | - Isabelle Mallard
- Unité de Chimie Environnementale et Interactions sur le Vivant (UCEIV)-EA 4492, Université du Littoral Côte d'Opale, 145 Avenue Maurice Schumann, MREI 1, 59140 Dunkerque, France
| | - Pierre-Edouard Danjou
- Unité de Chimie Environnementale et Interactions sur le Vivant (UCEIV)-EA 4492, Université du Littoral Côte d'Opale, 145 Avenue Maurice Schumann, MREI 1, 59140 Dunkerque, France.
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Affiliation(s)
- Miriana Kfoury
- Unité de Chimie Environnementale et Interactions sur le Vivant (UCEIV), ULCO, F-59140 Dunkerque, France
- Bioactive Molecules Research Group, Department of Chemistry and Biochemistry, Faculty of Sciences-2, Doctoral School of Science and Technology, Lebanese University, Fanar, Lebanon
| | - Ramona Balan
- Department of Chemical and Food Engineering, University Vasile Alecsandri, 600115 Bacau, Roumania
| | - David Landy
- Unité de Chimie Environnementale et Interactions sur le Vivant (UCEIV), ULCO, F-59140 Dunkerque, France
| | - Denisa Nistor
- Department of Chemical and Food Engineering, University Vasile Alecsandri, 600115 Bacau, Roumania
| | - Sophie Fourmentin
- Unité de Chimie Environnementale et Interactions sur le Vivant (UCEIV), ULCO, F-59140 Dunkerque, France
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Elard M, Denis J, Ferreira M, Bricout H, Landy D, Tilloy S, Monflier E. Rhodium catalyzed hydroformylation assisted by cyclodextrins in biphasic medium: Can sulfonated naphthylphosphanes lead to active, selective and recyclable catalytic species? Catal Today 2015. [DOI: 10.1016/j.cattod.2014.06.002] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Ferreira M, Jérôme F, Bricout H, Menuel S, Landy D, Fourmentin S, Tilloy S, Monflier E. Rhodium catalyzed hydroformylation of 1-decene in low melting mixtures based on various cyclodextrins and N,N′-dimethylurea. CATAL COMMUN 2015. [DOI: 10.1016/j.catcom.2014.11.001] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022] Open
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Bertaut E, Landy D. Improving ITC studies of cyclodextrin inclusion compounds by global analysis of conventional and non-conventional experiments. Beilstein J Org Chem 2014; 10:2630-41. [PMID: 25550724 PMCID: PMC4273236 DOI: 10.3762/bjoc.10.275] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2014] [Accepted: 10/22/2014] [Indexed: 12/19/2022] Open
Abstract
The study of 1:1 cyclodextrin inclusion compounds by isothermal titration calorimetry was explored in a theoretical and experimental point of view to compare the efficiency of conventional and non-conventional experiments. All direct and competitive protocols were described and evaluated in terms of accuracy on both binding constant and inclusion enthalpy. Significant improvement in the calorimetric characterization may be obtained by means of the global analysis of non-conventional experiments coupled to the standard titration protocol. While the titration-release approach proved to be the most accurate strategy for classical complexations, the valuable contribution of other non-conventional experiments was demonstrated for issues concerning weak stability, enthalpy, or solubility.
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Affiliation(s)
- Eléonore Bertaut
- Univ Lille Nord de France, F-59000 Lille, France ; ULCO, UCEIV, F-59140 Dunkerque, France
| | - David Landy
- Univ Lille Nord de France, F-59000 Lille, France ; ULCO, UCEIV, F-59140 Dunkerque, France
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Kfoury M, Landy D, Auezova L, Greige-Gerges H, Fourmentin S. Effect of cyclodextrin complexation on phenylpropanoids' solubility and antioxidant activity. Beilstein J Org Chem 2014; 10:2322-31. [PMID: 25298799 PMCID: PMC4187030 DOI: 10.3762/bjoc.10.241] [Citation(s) in RCA: 64] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2014] [Accepted: 09/09/2014] [Indexed: 11/23/2022] Open
Abstract
The complexation abilities of five cyclodextrins (CDs) with seven phenylpropanoids (PPs) were evaluated by UV–visible spectroscopy, phase solubility studies and molecular modeling. Formation constants (Kf), complexation efficiency (CE), PP:CD molar ratio, increase in formulation bulk and complexation energy were assessed. All complexes exhibited a 1:1 stoichiometry but their stability was influenced by the nature and the position of the phenyl ring substituents. A relationship between the intrinsic solubility of guests (S0) and the solubilizing potential of CD was proposed. Molecular modeling was used to investigate the complementarities between host and guest. Finally, the antioxidant activity of encapsulated PPs was evaluated by scavenging of the stable DPPH radical.
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Affiliation(s)
- Miriana Kfoury
- Bioactive Molecules Research Group, Doctoral School of Science and Technology, Department of Chemistry and Biochemistry, Faculty of Sciences-2, Lebanese University, Lebanon ; Univ Lille Nord de France, F-59000 Lille, France ; ULCO, UCEIV, F-59140 Dunkerque, France
| | - David Landy
- Univ Lille Nord de France, F-59000 Lille, France ; ULCO, UCEIV, F-59140 Dunkerque, France
| | - Lizette Auezova
- Bioactive Molecules Research Group, Doctoral School of Science and Technology, Department of Chemistry and Biochemistry, Faculty of Sciences-2, Lebanese University, Lebanon
| | - Hélène Greige-Gerges
- Bioactive Molecules Research Group, Doctoral School of Science and Technology, Department of Chemistry and Biochemistry, Faculty of Sciences-2, Lebanese University, Lebanon
| | - Sophie Fourmentin
- Univ Lille Nord de France, F-59000 Lille, France ; ULCO, UCEIV, F-59140 Dunkerque, France
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Rogez-Florent T, Duhamel L, Goossens L, Six P, Drucbert AS, Depreux P, Danzé PM, Landy D, Goossens JF, Foulon C. Label-free characterization of carbonic anhydrase-novel inhibitor interactions using surface plasmon resonance, isothermal titration calorimetry and fluorescence-based thermal shift assays. J Mol Recognit 2014; 27:46-56. [PMID: 24375583 DOI: 10.1002/jmr.2330] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2013] [Revised: 09/19/2013] [Accepted: 09/28/2013] [Indexed: 11/06/2022]
Abstract
This work describes the development of biophysical unbiased methods to study the interactions between new designed compounds and carbonic anhydrase II (CAII) enzyme. These methods have to permit both a screening of a series of sulfonamide derivatives and the identification of a lead compound after a thorough study of the most promising molecules. Interactions data were collected using surface plasmon resonance (SPR) and thermal shift assay (TSA). In the first step, experiments were performed with bovine CAII isoform and were extended to human CAII. Isothermal titration calorimetry (ITC) experiments were also conducted to obtain thermodynamics parameters necessary for the processing of the TSA data. Results obtained with this reference methodology demonstrate the effectiveness of SPR and TSA. KD values obtained from SPR data were in perfect accordance with ITC. For TSA, despite the fact that the absolute values of KD were quite different, the same affinity scale was obtained for all compounds. The binding affinities of the analytes studied vary by more than 50 orders of magnitude; for example, the KD value determined by SPR were 6 ± 4 and 299 ± 25 nM for compounds 1 and 3, respectively. This paper discusses some of the theoretical and experimental aspects of the affinity-based methods and evaluates the protein consumption to develop methods for the screening of further new compounds. The double interest of SPR, that is, for screening and for the quick thorough study of the interactions parameters (ka , kd , and KD ), leads us to choose this methodology for the study of new potential inhibitors.
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Affiliation(s)
- Tiphaine Rogez-Florent
- Université Lille Nord de France, F-59000, Lille, France; UDSL, EA-4481, UFR Pharmacie, Université Lille Nord de France, F-59000, Lille, France
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Landy D, Crawford LE, Presson AN. The Use of Relations and Prototypes in a Spatial Memory Task Depends on Timing. J Vis 2014. [DOI: 10.1167/14.10.861] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
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Abstract
Formal algebras are among the most powerful and general mechanisms for expressing quantitative relational statements; yet, even university engineering students, who are relatively proficient with algebraic manipulation, struggle with and often fail to correctly deploy basic aspects of algebraic notation (Clement, 1982). In the cognitive tradition, it has often been assumed that skilled users of these formalisms treat situations in terms of semantic properties encoded in an abstract syntax that governs the use of notation without particular regard to the details of the physical structure of the equation itself (Anderson, 2005; Hegarty, Mayer, & Monk, 1995). We explore how the notational structure of verbal descriptions or algebraic equations (e.g., the spatial proximity of certain words or the visual alignment of numbers and symbols in an equation) plays a role in the process of interpreting or constructing symbolic equations. We propose in particular that construction processes involve an alignment of notational structures across representation systems, biasing reasoners toward the selection of formal notations that maintain the visuospatial structure of source representations. For example, in the statement "There are 5 elephants for every 3 rhinoceroses," the spatial proximity of 5 and elephants and 3 and rhinoceroses will bias reasoners to write the incorrect expression 5E = 3R, because that expression maintains the spatial relationships encoded in the source representation. In 3 experiments, participants constructed equations with given structure, based on story problems with a variety of phrasings. We demonstrate how the notational alignment approach accounts naturally for a variety of previously reported phenomena in equation construction and successfully predicts error patterns that are not accounted for by prior explanations, such as the left to right transcription heuristic.
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Affiliation(s)
- David Landy
- Department of Psychological and Brain Sciences, Indiana University
| | - David Brookes
- Department of Physics, Florida International University
| | - Ryan Smout
- Department of Psychology, University of Richmond
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Abstract
People can be taught to manipulate symbols according to formal mathematical and logical rules. Cognitive scientists have traditionally viewed this capacity-the capacity for symbolic reasoning-as grounded in the ability to internally represent numbers, logical relationships, and mathematical rules in an abstract, amodal fashion. We present an alternative view, portraying symbolic reasoning as a special kind of embodied reasoning in which arithmetic and logical formulae, externally represented as notations, serve as targets for powerful perceptual and sensorimotor systems. Although symbolic reasoning often conforms to abstract mathematical principles, it is typically implemented by perceptual and sensorimotor engagement with concrete environmental structures.
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Affiliation(s)
- David Landy
- Psychological and Brain Science/Cognitive Science, Indiana University Bloomington, IN, USA
| | - Colin Allen
- History and Philosophy of Science/Cognitive Science, Indiana University Bloomington, IN, USA
| | - Carlos Zednik
- Institute of Cognitive Science, University of Osnabrück Osnabrück, Germany
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Fourmentin S, Ciobanu A, Landy D, Wenz G. Space filling of β-cyclodextrin and β-cyclodextrin derivatives by volatile hydrophobic guests. Beilstein J Org Chem 2013; 9:1185-91. [PMID: 23843912 PMCID: PMC3701372 DOI: 10.3762/bjoc.9.133] [Citation(s) in RCA: 46] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2012] [Accepted: 05/31/2013] [Indexed: 11/23/2022] Open
Abstract
The inclusion of volatile derivatives of benzene and cyclohexane in β-cyclodextrin (β-CD), hydroxypropyl-β-CD, and hydrophilic β-CD-thioethers was investigated by static headspace gas chromatography (HS-GC) and molecular modelling. The obtained binding constants strongly increase with the amount of space filling of the CD cavity and the salt concentration. β-CD thioethers show a 3–10 times higher binding potential than native β-CD.
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Affiliation(s)
- Sophie Fourmentin
- University Lille Nord de France, F-59000 Lille, France ; ULCO, UCEIV, F-59140 Dunkerque, France
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Volpe G, Sheehan H, Tang A, Duffalo C, Dinh D, Landy D, Ward H, Kane A, Wanke C. The Healthy Eating Index and the Intestinal Microbiome in HIV Infection. FASEB J 2013. [DOI: 10.1096/fasebj.27.1_supplement.1056.8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Gretchen Volpe
- Public Health and Community MedicineTufts UniversityBostonMA
- Tufts Medical CenterBostonMA
| | - Heidi Sheehan
- Public Health and Community MedicineTufts UniversityBostonMA
| | - Alice Tang
- Public Health and Community MedicineTufts UniversityBostonMA
| | | | | | | | - Honorine Ward
- Public Health and Community MedicineTufts UniversityBostonMA
- Tufts Medical CenterBostonMA
| | - Anne Kane
- Public Health and Community MedicineTufts UniversityBostonMA
- Tufts Medical CenterBostonMA
| | - Christine Wanke
- Public Health and Community MedicineTufts UniversityBostonMA
- Tufts Medical CenterBostonMA
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