1
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Boukoufi C, Boudier A, Clarot I. Increased Range of Catalytic Activities of Immobilized Compared to Colloidal Gold Nanoparticles. Molecules 2023; 28:7558. [PMID: 38005280 PMCID: PMC10673133 DOI: 10.3390/molecules28227558] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [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: 10/19/2023] [Revised: 11/06/2023] [Accepted: 11/09/2023] [Indexed: 11/26/2023] Open
Abstract
Gold nanoparticles (AuNPs) can be described as nanozymes, species that are able to mimic the catalytic activities of several enzymes, such as oxidase/peroxidase, reductase, or catalase. Most studies in the literature focus on the colloidal suspension of AuNPs, and it is obvious that their immobilization could open the doors to new applications thanks to their increased stability in this state. This work aimed to investigate the behavior of surfaces covered by immobilized AuNPs (iAuNPs). Citrate-stabilized AuNPs (AuNPs-cit) were synthesized and immobilized on glass slides using a simple dip coating method. The resulting iAuNPs were characterized (surface plasmon resonance, microscopy, quantification of immobilized AuNPs), and their multi-enzymatic-like activities (oxidase-, peroxidase-, and catalase-like activity) were evaluated. The comparison of their activities versus AuNPs-cit highlighted their added value, especially the preservation of their activity in some reaction media, and their ease of reuse. The huge potential of iAuNPs for heterogeneous catalysis was then applied to the degradation of two model molecules of hospital pollutants: metronidazole and methylene blue.
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Affiliation(s)
- Célia Boukoufi
- Université de Lorraine, CITHEFOR, F-54000 Nancy, France
- Pharmacy Department, University Hospital, F-54511 Vandoeuvre-Lès-Nancy, France
| | - Ariane Boudier
- Université de Lorraine, CITHEFOR, F-54000 Nancy, France
- Institut Universitaire de France (IUF), F-75231 Paris, France
| | - Igor Clarot
- Université de Lorraine, CITHEFOR, F-54000 Nancy, France
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2
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Maidodou L, Clarot I, Leemans M, Fromantin I, Marchioni E, Steyer D. Unraveling the potential of breath and sweat VOC capture devices for human disease detection: a systematic-like review of canine olfaction and GC-MS analysis. Front Chem 2023; 11:1282450. [PMID: 38025078 PMCID: PMC10646374 DOI: 10.3389/fchem.2023.1282450] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2023] [Accepted: 10/16/2023] [Indexed: 12/01/2023] Open
Abstract
The development of disease screening methods using biomedical detection dogs relies on the collection and analysis of body odors, particularly volatile organic compounds (VOCs) present in body fluids. To capture and analyze odors produced by the human body, numerous protocols and materials are used in forensics or medical studies. This paper provides an overview of sampling devices used to collect VOCs from sweat and exhaled air, for medical diagnostic purposes using canine olfaction and/or Gas Chromatography-Mass spectrometry (GC-MS). Canine olfaction and GC-MS are regarded as complementary tools, holding immense promise for detecting cancers and infectious diseases. However, existing literature lacks guidelines for selecting materials suitable for both canine olfaction and GC-MS. Hence, this review aims to address this gap and pave the way for efficient body odor sampling materials. The first section of the paper describes the materials utilized in training sniffing dogs, while the second section delves into the details of sampling devices and extraction techniques employed for exhaled air and sweat analysis using GC-MS. Finally, the paper proposes the development of an ideal sampling device tailored for detection purposes in the field of odorology. By bridging the knowledge gap, this study seeks to advance disease detection methodologies, harnessing the unique abilities of both dogs and GC-MS analysis in biomedical research.
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Affiliation(s)
- Laetitia Maidodou
- Twistaroma, Illkirch Graffenstaden, France
- CITHEFOR, EA 3452, Université de Lorraine, Nancy, France
- DSA, IPHC UMR7178, Université de Strasbourg, Strasbourg, France
| | - Igor Clarot
- CITHEFOR, EA 3452, Université de Lorraine, Nancy, France
| | - Michelle Leemans
- Clinical Epidemiology and Ageing, IMRB—Paris Est Créteil University /Inserm U955, Créteil, France
| | - Isabelle Fromantin
- Clinical Epidemiology and Ageing, IMRB—Paris Est Créteil University /Inserm U955, Créteil, France
- Wound Care and Research Unit, Curie Institute, Paris, France
| | - Eric Marchioni
- DSA, IPHC UMR7178, Université de Strasbourg, Strasbourg, France
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3
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Schwartz M, Perrot T, Beurton J, Zannini F, Morel-Rouhier M, Gelhaye E, Neiers F, Schaniel D, Favier F, Jacquot JP, Leroy P, Clarot I, Boudier A, Didierjean C. Structural insights into the interactions of glutathione transferases with a nitric oxide carrier and sodium nitroprusside. Biochem Biophys Res Commun 2023; 649:79-86. [PMID: 36758482 DOI: 10.1016/j.bbrc.2023.01.099] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [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: 01/17/2023] [Revised: 01/25/2023] [Accepted: 01/31/2023] [Indexed: 02/04/2023]
Abstract
Glutathione transferases are detoxification enzymes with multifaceted roles, including a role in the metabolism and scavenging of nitric oxide (NO) compounds in cells. Here, we explored the ability of Trametes versicolor glutathione transferases (GSTs) from the Omega class (TvGSTOs) to bind metal-nitrosyl compounds. TvGSTOs have been studied previously for their ligandin role and are interesting models to study protein‒ligand interactions. First, we determined the X-ray structure of the TvGSTO3S isoform bound to the dinitrosyl glutathionyl iron complex (DNGIC), a physiological compound involved in the storage of nitric oxide. Our results suggested a different binding mode compared to the one previously described in human GST Pi 1 (GSTP1). Then, we investigated the manner in which TvGSTO3S binds three nonphysiological metal-nitrosyl compounds with different metal cores (iron, ruthenium and osmium). We assayed sodium nitroprusside, a well-studied vasodilator used in cases of hypertensive crises or heart failure. Our results showed that the tested GST can bind metal-nitrosyls at two distinct binding sites. Thermal shift analysis with six isoforms of TvGSTOs identified TvGSTO6S as the best interactant. Using the Griess method, TvGSTO6S was found to improve the release of nitric oxide from sodium nitroprusside in vitro, whereas the effects of human GST alpha 1 (GSTA1) and GSTP1 were moderate. Our results open new structural perspectives for understanding the interactions of glutathione transferases with metal-nitrosyl compounds associated with the biochemical mechanisms of NO uptake/release in biological systems.
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Affiliation(s)
- Mathieu Schwartz
- Université de Lorraine, CNRS, CRM2, F-54000, Nancy, France; CSGA, INRAE, University of Burgundy, CNRS, Institut Agro, F-21000, Dijon, France.
| | - Thomas Perrot
- Université de Lorraine, INRAE, IAM, F-54000, Nancy, France
| | - Jordan Beurton
- Université de Lorraine, CITHEFOR, F-54000, Nancy, France
| | | | | | - Eric Gelhaye
- Université de Lorraine, INRAE, IAM, F-54000, Nancy, France
| | - Fabrice Neiers
- CSGA, INRAE, University of Burgundy, CNRS, Institut Agro, F-21000, Dijon, France
| | | | | | | | - Pierre Leroy
- Université de Lorraine, INRAE, IAM, F-54000, Nancy, France
| | - Igor Clarot
- Université de Lorraine, CITHEFOR, F-54000, Nancy, France
| | - Ariane Boudier
- Université de Lorraine, CITHEFOR, F-54000, Nancy, France
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4
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Gouyon J, Boudier A, Pallotta A, Boukoufi C, Clarot I. Cross-frontal mode: An alternative methodology for Taylor dispersion analysis of monomodal sample. J Chromatogr A 2023; 1694:463913. [PMID: 36898235 DOI: 10.1016/j.chroma.2023.463913] [Citation(s) in RCA: 0] [Impact Index Per Article: 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: 01/20/2023] [Revised: 03/01/2023] [Accepted: 03/02/2023] [Indexed: 03/07/2023]
Abstract
Taylor dispersion analysis (TDA) is a technique dedicated to the determination of the molecular diffusion coefficient (D) of species, using band broadening of an analyte in a laminar flow. Two modes are commonly used to perform TDA: pulse and frontal modes. In each case, a fitting of the signal is required. We propose here a third mode denoted as cross-frontal mode, combining two crossed sample fronts without modification of a classical CE device for the rapid and accurate determination of D of caffeine, reduced glutathione (GSH), insulin from bovine pancreas, bovine serum albumin (BSA) and citrate-capped gold nanoparticles (AuNP). Theoretical aspects and methodology are described, showing a good correlation between the so-called cross-frontal mode and usual frontal mode. Limitations of the techniques are also assessed, and are similar to regular modes while no fitting is required. This new methodology allows improving the sensitivity toward low concentrated sample compared to pulse mode, and an alternative mathematical treatment compared to regular TDA modes.
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Affiliation(s)
- Jérémie Gouyon
- Université de Lorraine, CITHEFOR, F-54000 Nancy, France.
| | - Ariane Boudier
- Université de Lorraine, CITHEFOR, F-54000 Nancy, France; Nanocontrol, F-54000 Nancy, France
| | - Arnaud Pallotta
- Université de Lorraine, CITHEFOR, F-54000 Nancy, France; Nanocontrol, F-54000 Nancy, France
| | - Célia Boukoufi
- Université de Lorraine, CITHEFOR, F-54000 Nancy, France; Pharmacy Department, University Hospital, 54511 Vandœuvre-lès-Nancy, France
| | - Igor Clarot
- Université de Lorraine, CITHEFOR, F-54000 Nancy, France; Nanocontrol, F-54000 Nancy, France
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5
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Berthou M, Clarot I, Gouyon J, Steyer D, Monat MA, Boudier A, Pallotta A. Thiol sensing: From current methods to nanoscale contribution. Microchem J 2022. [DOI: 10.1016/j.microc.2022.107994] [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: 11/28/2022]
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6
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Gouyon J, Boudier A, Barakat F, Pallotta A, Clarot I. Taylor dispersion analysis of metallic-based nanoparticles - A short review. Electrophoresis 2022; 43:2377-2391. [PMID: 36153831 DOI: 10.1002/elps.202200184] [Citation(s) in RCA: 0] [Impact Index Per Article: 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: 07/11/2022] [Revised: 09/09/2022] [Accepted: 09/19/2022] [Indexed: 12/14/2022]
Abstract
Taylor dispersion analysis (TDA) is an interesting tool for nanoparticle (NP) size determination, feasible using simple capillary electrophoresis apparatus. Based upon the radial diffusion of analytes upon a laminar stream, the diffusion coefficient of species is easily estimable. Moreover, TDA is generally more adequate than conventional dynamic light scattering methodologies as it is less dependent on the polydispersity of the sample, leading to accurate measurement and reliable results. This review provides every paper mentioning the use of TDA for metallic-based NPs size determination. Diverse strategies for the detection of metallic NPs (like UV-visible and inductively coupled plasma-mass spectrometry - ICP-MS - for instance) and interpretation of the Taylorgrams are discussed. Based upon the literature, advices on future prospects are also indicated, especially for the comparison of TDA results with other classical techniques.
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Affiliation(s)
| | - Ariane Boudier
- CITHEFOR, Université de Lorraine, Nancy, 54000, France.,Nanocontrol, Nancy, France
| | | | - Arnaud Pallotta
- CITHEFOR, Université de Lorraine, Nancy, 54000, France.,Nanocontrol, Nancy, France
| | - Igor Clarot
- CITHEFOR, Université de Lorraine, Nancy, 54000, France.,Nanocontrol, Nancy, France
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7
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Boukoufi C, Boudier A, Maincent P, Vigneron J, Clarot I. Food-inspired innovations to improve the stability of active pharmaceutical ingredients. Int J Pharm 2022; 623:121881. [PMID: 35680111 DOI: 10.1016/j.ijpharm.2022.121881] [Citation(s) in RCA: 0] [Impact Index Per Article: 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: 03/14/2022] [Revised: 05/23/2022] [Accepted: 05/26/2022] [Indexed: 11/25/2022]
Abstract
Food-processing and pharmaceutical industries share a lot of stability issues against the same physical, chemical, and microbiological phenomena. They also share some solutions to improve the stability as the use of preservatives and packaging. Ecological concerns lead to the development of tremendous innovations in food. Some of these innovations could also be beneficial in the pharmaceutical domain. The objective of this review is to evaluate the potential application of these findings in the pharmaceutical field and the main limits in terms of toxicity, environmental, economic and regulatory issues. The principal factors influencing the shelf-life were highlighted through the description of the stability studies usually performed in the pharmaceutical industry (according to European guidelines). To counter those factors, different solutions are currently available as preservatives and specific packaging. They were described and debated with an overview of recent food innovations in each field. The limits of the current solutions in the pharmaceutical field and the innovation in the food field have inspired a critical pharmaceutical outlook. The active and intelligent packaging for active pharmaceutical ingredients of the future is imagined.
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Affiliation(s)
- Célia Boukoufi
- Université de Lorraine, CITHEFOR, F-54000 Nancy, France; Pharmacy Department, University Hospital, 54511 Vandoeuvre-lès-Nancy, France
| | | | | | - Jean Vigneron
- Pharmacy Department, University Hospital, 54511 Vandoeuvre-lès-Nancy, France
| | - Igor Clarot
- Université de Lorraine, CITHEFOR, F-54000 Nancy, France.
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8
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Berthou M, Pallotta A, Beurton J, Chaigneau T, Athanassiou A, Marcic C, Marchioni E, Boudier A, Clarot I. Gold nanostructured membranes to concentrate low molecular weight thiols, a proof of concept study. J Chromatogr B Analyt Technol Biomed Life Sci 2022; 1198:123244. [DOI: 10.1016/j.jchromb.2022.123244] [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] [Received: 01/07/2022] [Revised: 03/28/2022] [Accepted: 04/01/2022] [Indexed: 01/02/2023]
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9
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Beurton J, Boudier A, Barozzi Seabra A, Vrana NE, Clarot I, Lavalle P. Nitric Oxide Delivering Surfaces: An Overview of Functionalization Strategies and Efficiency Progress. Adv Healthc Mater 2022; 11:e2102692. [PMID: 35358359 DOI: 10.1002/adhm.202102692] [Citation(s) in RCA: 7] [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: 12/09/2021] [Revised: 02/27/2022] [Indexed: 12/15/2022]
Abstract
An overview on the design of nitric oxide (NO) delivering surfaces for biomedical purposes is provided, with a focus on the advances of the past 5 years. A localized supply of NO is of a particular interest due to the pleiotropic biological effects of this diatomic compound. Depending on the generated NO flux, the surface can mimic a physiological release profile to provide an activity on the vascular endothelium or an antibacterial activity. Three requirements are considered to describe the various strategies leading to a surface delivering NO. Firstly, the coating must be selected in accordance with the properties of the substrate (nature, shape, dimensions…). Secondly, the releasing and/or generating kinetics of NO should match the targeted biological application. Currently, the most promising structures are developed to provide an adaptable NO supply driven by pathophysiological needs. Finally, the biocompatibility and the stability of the surface must also be considered regarding the expected residence time of the device. A critical point of view is proposed to help readers in the design of the NO delivering surface according to its expected requirement and therapeutic purpose.
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Affiliation(s)
- Jordan Beurton
- Université de Lorraine CITHEFOR Nancy F‐54000 France
- Institut National de la Santé et de la Recherche Médicale Inserm UMR_S 1121 Biomaterials and Bioengineering Strasbourg F‐67085 France
- Université de Strasbourg Faculté de Chirurgie Dentaire de Strasbourg Strasbourg F‐67000 France
| | | | - Amedea Barozzi Seabra
- Center for Natural and Human Sciences (CCNH) Federal University of ABC (UFABC) Santo André SP CEP 09210‐580 Brazil
| | | | - Igor Clarot
- Université de Lorraine CITHEFOR Nancy F‐54000 France
| | - Philippe Lavalle
- Université de Strasbourg Faculté de Chirurgie Dentaire de Strasbourg Strasbourg F‐67000 France
- Center for Natural and Human Sciences (CCNH) Federal University of ABC (UFABC) Santo André SP CEP 09210‐580 Brazil
- SPARTHA Medical 14B Rue de la Canardiere Strasbourg 67100 France
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10
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Trambloy Q, Vigneron J, Clarot I, Blaise F, D’Huart E, Demoré B. Physicochemical stability of azacitidine suspensions at 25 mg/mL in polypropylene syringes stored under different conditions of storage. Pharmaceutical Technology in Hospital Pharmacy 2022. [DOI: 10.1515/pthp-2022-0003] [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: 11/15/2022] Open
Abstract
Abstract
Objectives
Azacitidine is a pyrimidine nucleoside analogue whose stability is temperature dependent. Numerous publications have studied the stability of this drug with discordant results. The purpose of this work is to study the stability of azacitidine suspensions under different conditions to allow preparation in advance: vials stored at room temperature or between 2 and 8 °C, reconstituted with refrigerated water for injection (WFI) or frozen/thawed WFI, azacitidine suspensions stored at room temperature, 2–8 °C or at −20 °C. The feasibility of a vented ChemoClave® Spike vial was also tested to reconstitute and collect azacitidine to aid the preparation stage.
Methods
The stability study was performed by HPLC coupled to a photodiode array detector. The method was validated according to ICH Q2(R1). Two syringes were prepared for each analysis condition and two samples were realised for each syringe at each time of the analysis. For a storage at 2–8 °C, analyses were performed for up to 168 h. The stability was studied after 2 h at room temperature. For frozen storage, the stability was studied after 28 days.
Results
Azacitidine 25 mg/mL suspensions stored between 2 and 8 °C, prepared with refrigerated WFI or frozen/thawed WFI, retained more than 90% of the initial concentration for 96 h and then for 2 h at room temperature. Prepared with frozen/thawed WFI, azacitidine 25 mg/mL suspensions stored at −20 °C for 28 days and then 72 h between 2 and 8 °C after thawing, retained more than 90% of the initial concentration. When using a Spike system compared to using a needle for reconstitution and collection of the suspension, the results obtained by HPLC showed a decrease of 1.47% in the concentration of azacitidine. The comparisons of the volumes withdrawn after reconstitution were similar when using a Spike system or a needle.
Conclusions
Azacitidine 25 mg/mL suspensions reconstituted with refrigerated WFI were chemically stable for 4 days when stored at 2–8 °C whatever the storage of vials (refrigerator or room temperature), and 2 h at room temperature. A storage of azacitidine 25 mg/mL suspensions in syringes prepared with frozen/thawed WFI at −20 °C has been validated for up to 28 days, leading to the possibility to prepare in advance. A Spike device can be used to reconstitute and collect azacitidine.
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Affiliation(s)
- Quentin Trambloy
- Pharmacy Department , University Hospital Vandœuvre-lès-Nancy , France
| | - Jean Vigneron
- Pharmacy Department , University Hospital Vandœuvre-lès-Nancy , France
- Infostab, Non-Profit Association , Heillecourt , France
| | | | - Franck Blaise
- Pharmacy Department , University Hospital Vandœuvre-lès-Nancy , France
| | - Elise D’Huart
- Pharmacy Department , University Hospital Vandœuvre-lès-Nancy , France
- Infostab, Non-Profit Association , Heillecourt , France
| | - Béatrice Demoré
- Pharmacy Department , University Hospital Vandœuvre-lès-Nancy , France
- Infostab, Non-Profit Association , Heillecourt , France
- Université de Lorraine Nancy , France
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11
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Adjali A, Clarot I, Chen Z, Marchioni E, Boudier A. Physicochemical degradation of phycocyanin and means to improve its stability: A short review. J Pharm Anal 2021; 12:406-414. [PMID: 35811624 PMCID: PMC9257648 DOI: 10.1016/j.jpha.2021.12.005] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [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: 10/08/2021] [Revised: 12/22/2021] [Accepted: 12/26/2021] [Indexed: 12/22/2022] Open
Abstract
The cyanobacterium Arthrospira platensis, spirulina, is a source of pigments such as phycobiliprotein and phycocyanin. Phycocyanin is used in the food, cosmetics, and pharmaceutical industries because of its antioxidant, anti-inflammatory, and anticancer properties. The different steps involved in extraction and purification of this protein can alter the final properties. In this review, the stability of phycocyanin (pH, temperature, and light) is discussed, considering the physicochemical parameters of kinetic modeling. The optimal working pH range for phycocyanin is between 5.5 and 6.0 and it remains stable up to 45 °C; however, exposure to relatively high temperatures or acidic pH decreases its half-life and increases the degradation kinetic constant. Phycobiliproteins are sensitive to light; preservatives such as mono- and di-saccharides, citric acid, or sodium chloride appear to be effective stabilizing agents. Encapsulation within nano- or micro-structured materials such as nanofibers, microparticles, or nanoparticles, can also preserve or enhance its stability. Phycocyanin is in great demand for industrial application. Phycocyanin is sensitive to pH, temperature, and light. Optimal stability occurs between pH 5.5–6.0 and at temperatures <45 °C in the dark. The use of preservatives or its encapsulation with polymers enhances its stability.
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Affiliation(s)
- Aïda Adjali
- Université de Lorraine, CITHEFOR, F-54000, Nancy, France
| | - Igor Clarot
- Université de Lorraine, CITHEFOR, F-54000, Nancy, France
| | - Zilin Chen
- Key Laboratory of Combinatorial Biosynthesis and Drug Discovery, Ministry of Education, Hubei Province Engineering and Technology Research Center for Fluorinated Pharmaceuticals, and Wuhan University School of Pharmaceutical Sciences, Wuhan, 430071, China
- State Key Laboratory of Transducer Technology, Chinese Academy of Sciences, Beijing, 100080, China
| | - Eric Marchioni
- Université de Strasbourg, CNRS, IPHC UMR 7178, F-67000, Strasbourg, France
| | - Ariane Boudier
- Université de Lorraine, CITHEFOR, F-54000, Nancy, France
- Corresponding author.
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12
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Li Q, Li Z, Fu Y, Clarot I, Boudier A, Chen Z. Room-temperature growth of covalent organic frameworks as the stationary phase for open-tubular capillary electrochromatography. Analyst 2021; 146:6643-6649. [PMID: 34591047 DOI: 10.1039/d1an01402a] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
Covalent organic frameworks (COFs) are a class of porous materials with high surface area, high porosity, good stability and tunable structure that have been widely used in the separation area. In this work, we have proposed the in situ synthesis of a novel COF composed of 4,4',4''-(1,3,5-triazine-2,4,6-triyl)trianiline (Tz) and 1,4-dihydroxyterephthalaldehyde (Da) onto the capillary inner surface for electrochromatographic separation. Fourier transform infrared (FT-IR) spectroscopy, elemental analysis (EA) and scanning electron microscopy (SEM) have facilitated the characterization of the prepared capillary columns. The COF (TzDa) modified OT-CEC column exhibited satisfactory separation selectivity towards neutral compounds (such as chlorobenzenes and alkylbenzenes), acidic and basic compounds (such as phenols and anilines), food additives (vanillin and its analogues) and small biomolecules (such as amino acids and polypeptides). Furthermore, the TzDa modified capillary was quite stable and reproducible. The relative standard deviations for retention times of the test analytes (alkylbenzenes) were as follows: for intra-day (n = 3) runs (≤1.74%), inter-day (n = 3) runs (≤2.25%) and between columns (n = 3) (≤4.83%). This new type of COF-based stationary phase has tremendous potential in separation science.
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Affiliation(s)
- Qiaoyan Li
- Key Laboratory of Combinatorial Biosynthesis and Drug Discovery, Ministry of Education, Hubei Province Engineering and Technology Research Center for Fluorinated Pharmaceuticals, and Wuhan University School of Pharmaceutical Sciences, Wuhan, 430071, China. .,State Key Laboratory of Transducer Technology, Chinese Academy of Sciences, Beijing 100080, China
| | - Zhentao Li
- Key Laboratory of Combinatorial Biosynthesis and Drug Discovery, Ministry of Education, Hubei Province Engineering and Technology Research Center for Fluorinated Pharmaceuticals, and Wuhan University School of Pharmaceutical Sciences, Wuhan, 430071, China. .,State Key Laboratory of Transducer Technology, Chinese Academy of Sciences, Beijing 100080, China
| | - Yuanyuan Fu
- Key Laboratory of Combinatorial Biosynthesis and Drug Discovery, Ministry of Education, Hubei Province Engineering and Technology Research Center for Fluorinated Pharmaceuticals, and Wuhan University School of Pharmaceutical Sciences, Wuhan, 430071, China.
| | - Igor Clarot
- Université de Lorraine, CITHEFOR, F-54000 Nancy, France
| | | | - Zilin Chen
- Key Laboratory of Combinatorial Biosynthesis and Drug Discovery, Ministry of Education, Hubei Province Engineering and Technology Research Center for Fluorinated Pharmaceuticals, and Wuhan University School of Pharmaceutical Sciences, Wuhan, 430071, China. .,State Key Laboratory of Transducer Technology, Chinese Academy of Sciences, Beijing 100080, China
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13
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Pieretti JC, Beurton J, Munevar J, Nagamine LCCM, Le Faou A, Seabra AB, Clarot I, Boudier A. The Impact of Multiple Functional Layers in the Structure of Magnetic Nanoparticles and Their Influence on Albumin Interaction. Int J Mol Sci 2021; 22:ijms221910477. [PMID: 34638818 PMCID: PMC8508928 DOI: 10.3390/ijms221910477] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [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: 08/27/2021] [Revised: 09/15/2021] [Accepted: 09/23/2021] [Indexed: 11/19/2022] Open
Abstract
In nanomedicine, hybrid nanomaterials stand out for providing new insights in both the diagnosis and treatment of several diseases. Once administered, engineered nanoparticles (NPs) interact with biological molecules, and the nature of this interaction might directly interfere with the biological fate and action of the NPs. In this work, we synthesized a hybrid magnetic nanostructure, with antibacterial and antitumoral potential applications, composed of a magnetite core covered by silver NPs, and coated with a modified chitosan polymer. As magnetite NPs readily oxidize to maghemite, we investigated the structural properties of the NPs after addition of the two successive layers using Mössbauer spectroscopy. Then, the structural characteristics of the NPs were correlated to their interaction with albumin, the major blood protein, to evidence the consequences of its binding on NP properties and protein retention. Thermodynamic parameters of the NPs–albumin interaction were determined. We observed that the more stable NPs (coated with modified chitosan) present a lower affinity for albumin in comparison to pure magnetite and magnetite/silver hybrid NPs. Surface properties were key players at the NP–biological interface. To the best of our knowledge, this is the first study that demonstrates a correlation between the structural properties of complex hybrid NPs and their interaction with albumin.
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Affiliation(s)
- Joana C. Pieretti
- Center for Natural and Human Sciences (CCNH), Federal University of ABC (UFABC), Santo André 09210-580, Brazil; (J.C.P.); (J.M.); (A.B.S.)
| | - Jordan Beurton
- Université de Lorraine, CITHEFOR, F-54000 Nancy, France; (J.B.); (A.L.F.); (I.C.)
| | - Julián Munevar
- Center for Natural and Human Sciences (CCNH), Federal University of ABC (UFABC), Santo André 09210-580, Brazil; (J.C.P.); (J.M.); (A.B.S.)
| | | | - Alain Le Faou
- Université de Lorraine, CITHEFOR, F-54000 Nancy, France; (J.B.); (A.L.F.); (I.C.)
| | - Amedea B. Seabra
- Center for Natural and Human Sciences (CCNH), Federal University of ABC (UFABC), Santo André 09210-580, Brazil; (J.C.P.); (J.M.); (A.B.S.)
| | - Igor Clarot
- Université de Lorraine, CITHEFOR, F-54000 Nancy, France; (J.B.); (A.L.F.); (I.C.)
| | - Ariane Boudier
- Université de Lorraine, CITHEFOR, F-54000 Nancy, France; (J.B.); (A.L.F.); (I.C.)
- Correspondence:
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Pallotta A, Clarot I, Beurton J, Creusot B, Chaigneau T, Tu A, Lavalle P, Boudier A. Analytical strategy for studying the formation and stability of multilayered films containing gold nanoparticles. Anal Bioanal Chem 2021; 413:1473-1483. [PMID: 33495848 DOI: 10.1007/s00216-020-03113-6] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2020] [Revised: 12/02/2020] [Accepted: 12/07/2020] [Indexed: 11/29/2022]
Abstract
The design of layer-by-layer (LbL) polyelectrolyte films including nanoparticles is a growing field of innovation in a wide range of biomedical applications. Gold nanoparticles (AuNPs) are very attractive for further biomolecule coupling to induce a pharmacological effect. Nanostructured LbL films coupled with such metallic species show properties that depend on the conditions of construction, i.e. the polymer nature and dissolution buffer. Tripartite LbL films (polycation, AuNP, and polyanion) were evaluated using two different polycationic polymers (poly(allylamine hydrochloride) (PAH), poly(ethylene imine) (PEI)) and various medium conditions (salts, i.e. phosphate, Tris or Tris-NaCl buffers, and concentration). AuNP incorporation and film stability were analysed by visible spectrophotometry, capillary zone electrophoresis, a quartz crystal microbalance, and high-performance liquid chromatography. The ideal compromise between AuNP loading and film stability was obtained using PAH prepared in Tris-NaCl buffer (0.01-0.15 M). This condition allowed the formation of a LbL film that was more stable than the film with PEI and provided an AuNP quantity that was 4.8 times greater than that of the PAH-PBS-built film. In conclusion, this work presents an analytical strategy for the characterization of nanostructured multilayer films and optimization of LbL films enriched with AuNPs to design biomedical device coatings.
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Affiliation(s)
| | - Igor Clarot
- Université de Lorraine, CITHEFOR, 54000, Nancy, France
| | - Jordan Beurton
- Université de Lorraine, CITHEFOR, 54000, Nancy, France.,Institut National de la Santé et de la Recherche Médicale, INSERM Unité 1121, 11 rue Humann, 67085, Strasbourg Cedex, France
| | | | | | - Annie Tu
- Institut National de la Santé et de la Recherche Médicale, INSERM Unité 1121, 11 rue Humann, 67085, Strasbourg Cedex, France.,Faculté de Chirurgie Dentaire, Université de Strasbourg, 8 rue Sainte Elisabeth, 67000, Strasbourg, France
| | - Philippe Lavalle
- Institut National de la Santé et de la Recherche Médicale, INSERM Unité 1121, 11 rue Humann, 67085, Strasbourg Cedex, France.,Faculté de Chirurgie Dentaire, Université de Strasbourg, 8 rue Sainte Elisabeth, 67000, Strasbourg, France
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Beurton J, Lavalle P, Pallotta A, Chaigneau T, Clarot I, Boudier A. Design of surface ligands for blood compatible gold nanoparticles: Effect of charge and binding energy. Int J Pharm 2020; 580:119244. [PMID: 32201250 DOI: 10.1016/j.ijpharm.2020.119244] [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] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2019] [Revised: 03/16/2020] [Accepted: 03/18/2020] [Indexed: 11/18/2022]
Abstract
Gold nanoparticle (AuNP) interaction with the blood compartment as a function of their charge and the binding energy of their surface ligand was explored. Citrate, polyallylamine and cysteamine stabilized AuNP along with dihydrolipoic acid and polyethylene glycol capped AuNP were synthesized and fully characterized. Their interactions with model proteins (human albumin and human fibrinogen) were studied. Complexes formed between AuNP and protein revealed several behaviors ranging from corona formation to aggregation. Protein fluorescence quenching as a function of temperature and AuNP concentration allowed the determination of the thermodynamic parameters describing these interactions. The hemolysis induced by AuNP was also probed: an increasing or a decreasing of hemolysis ratio induced by AuNP was observed as of function of protein corona formation. Taken together, our results drew up a composite sketch of an ideal surface ligand for blood compatible AuNP. This capping agent should be strongly bound to the gold core by one or more thiol groups and it must confer a negative charge to the particles.
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Affiliation(s)
- Jordan Beurton
- Université de Lorraine, CITHEFOR, Nancy, France; Université de Strasbourg, Faculty of Medicine, Inserm UMR 1121 Biomaterials and Bioengineering, Strasbourg, France
| | - Philippe Lavalle
- Université de Strasbourg, Faculty of Medicine, Inserm UMR 1121 Biomaterials and Bioengineering, Strasbourg, France
| | | | | | - Igor Clarot
- Université de Lorraine, CITHEFOR, Nancy, France
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D'Huart E, Vigneron J, Clarot I, Demoré B. Physicochemical stability of nefopam and nefopam/droperidol solutions in polypropylene syringes for intensive care units. Eur J Hosp Pharm 2020; 27:e69-e73. [PMID: 32296509 DOI: 10.1136/ejhpharm-2019-001856] [Citation(s) in RCA: 0] [Impact Index Per Article: 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: 01/07/2019] [Revised: 04/09/2019] [Accepted: 05/08/2019] [Indexed: 11/04/2022] Open
Abstract
Introduction Nefopam has been reported to be effective in postoperative pain control with an opioid-sparing effect, but the use of nefopam can lead to nausea and vomiting. To prevent these side effects, droperidol can be mixed with nefopam. In intensive care units, high concentrations of nefopam and droperidol in syringes can be used with a continuous flow. Objectives The first objective of this work was to study the physicochemical stability of a nefopam solution 2.5 mg/mL diluted in NaCl 0.9% in polypropylene syringes immediately after preparation and after 6, 24 and 48 hours at room temperature. The second objective was to study the physicochemical stability of mixtures of nefopam 2.5 mg/mL and droperidol 52 µg/mL diluted in NaCl 0.9% in polypropylene syringes at room temperature over 48 hours. Materials and methods Three syringes for each condition were prepared. For each time of analysis, three samples for each syringe were prepared and analysed by high performance liquid chromatography coupled to photodiode array detection. The method was validated according to the International Conference on Harmonisation Q2(R1). Physical stability was evaluated by visual and subvisual inspection (turbidimetry by UV spectrophotometry). pH values were measured at each time of analysis. Results Solutions of nefopam at 2.5 mg/mL and the mixture of nefopam 2.5 mg/mL with droperidol 52 µg/mL, diluted in NaCl 0.9%, without protection from light, retained more than 90% of the initial concentration after 48 hours storage at 20-25°C. No modification in visual or subvisual evaluation and pH values were observed. Conclusion Nefopam solutions at 2.5 mg/mL and the mixture of nefopam 2.5 mg/mL with droperidol 52 µg/mL diluted in NaCl 0.9% were stable over a period of 48 hours at room temperature. These stability data provide additional knowledge to assist intensive care services in daily practice.
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Affiliation(s)
- Elise D'Huart
- Pharmacy, Centre Hospitalier Universitaire de Nancy, Vandoeuvre-lès-Nancy, France
| | - Jean Vigneron
- Pharmacy, Centre Hospitalier Universitaire de Nancy, Vandoeuvre-lès-Nancy, France
| | - Igor Clarot
- Laboratoire CITHEFOR, Université de Lorraine, Nancy, France
| | - Béatrice Demoré
- Pharmacy, Centre Hospitalier Universitaire de Nancy, Vandoeuvre-lès-Nancy, France.,EA 4360 APEMAC, Université de Lorraine, Nancy, France
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D’Huart É, Vigneron J, Charmillon A, Clarot I, Demoré B. Physicochemical Stability of Vancomycin at High Concentrations in Polypropylene Syringes. Can J Hosp Pharm 2019. [DOI: 10.4212/cjhp.v72i5.2929] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Abstract
ABSTRACTBackground: In severe infections, high-concentration vancomycin may be administered by continuous infusion. The dosage of vancomycin may reach 60 mg/kg per day. Objectives: To study the feasibility of preparing high-concentration vancomycin solutions (40 to 83.3 mg/mL), to study the effect of an electric syringe pump on the physical stability of high-concentration vancomycin, and to study the stability of vancomycin 62.5 and 83.3 mg/mL in 0.9% sodium chloride (0.9% NaCl) or 5% dextrose in water (D5W) with storage up to 48 h at room temperature. Methods: The following sets of syringes were prepared: (1) 4 syringes of vancomycin in 0.9% NaCl for each of 5 concentrations between 40 and 83.3 mg/mL (total 20 syringes); (2) 6 syringes at 83.3 mg/mL in 0.9%NaCl and 6 syringes at 83.3 mg/mL in D5W; and (3) 30 syringes at 83.3 mg/mL in D5W. Visual inspection was performed for all 3 syringe sets, and subvisual inspection for sets 1 and 2 (for periods of 24 h for set 1 and 48 h for sets 2 and 3). One syringe of vancomycin 83.3 mg/mL with each solvent was inserted into an electric syringe pump, and samples from the infusion line and collected after transit through the pump were inspected visually. Chemical stability was evaluated by high-performance liquid chromatography, and physical stability, pH, and osmolality were investigated. Results: For all sets of syringes, no physical modification was observed over time, nor were any changes observed after transit through the electric syringe pump. In 0.9% NaCl, vancomycin 62.5 and 83.3 mg/mL retained more than 90% of the initial concentration after 48 and 24 h, respectively; however, for the 83.3 mg/mL solution, precipitate was visible after 48 h. In D5W, vancomycin at 62.5 and 83.3 mg/mL retained more than 90%of the initial concentration after 48 h. Conclusion: It was feasible to prepare high-concentration solutions of vancomycin. The electric syringe pump did not cause any precipitation. Vancomycin in D5W at 62.5 and 83.3 mg/mL was stable over 48 h at room temperature. Precipitation occurred in 0.9% NaCl. D5W is therefore recommended as the solvent for this drug.RÉSUMÉContexte : En cas d’infection grave, de la vancomycine à forte concentration peut être administrée par perfusion continue à une dose pouvant atteindre 60 mg/kg par jour. Objectifs : Mener une étude de faisabilité portant sur la préparation de solutions de vancomycine à forte concentration (de 40 à 83,3 mg/mL); étudier l’effet d’un pousse-seringue électrique sur la stabilité physique de la vancomycine à forte concentration; et étudier la stabilité de la vancomycine (62,5 et 83,3 mg/mL) dans une solution de chlorure de sodium à 0,9 % (NaCl à 0,9 %) ou dans une solution aqueuse de dextrose à 5 % (D5W) après 48 h à la température ambiante.Méthodes : Trois ensembles de seringues ont été préparés : (1) quatre seringues de vancomycine dans une solution de NaCl à 0,9 %, à chacune des cinq concentrations comprises entre 40 et 83,3 mg/mL (20 seringues au total); (2) six seringues à 83,3 mg/mL dans une solution de NaCl à 0,9 % et six seringues à 83,3 mg/mL dans une solution de D5W; et (3) 30 seringues à 83,3 mg/mL dans une solution de D5W. Une inspection visuelle des trois ensembles de seringues et une inspection « sous-visuelle » des ensembles 1 et 2 ont eu lieu (période de 24 h pour l’ensemble 1 et de 48 h pour les ensembles 2 et 3). Une seringue contenant de la vancomycine à 83,3 mg/mL mélangée à chaque solvant a été insérée dans un pousse-seringue électrique, et les échantillons prélevés dans le tube de perfusion et ceux recueillis après leur passage dans la pompe ont été inspectés visuellement. La stabilité chimique a été évaluée par chromatographie liquide à haute performance et la stabilité physique, le pH ainsi que l’osmolalité ont eux aussi été étudiés. Résultats : Les trois ensembles de seringues n’ont présenté aucune modification physique avec le temps. Aucun changement n’a non plus été observé après le passage dans le pousse-seringue électrique. Dans la solution de NaCl à 0,9 %, la vancomycine à 62,5 et à 83,3 mg/mL a conservé plus de 90 % de sa concentration initiale respectivement après 48 et 24 h. Cependant, le précipité de la solution à 83,3 mg/mL était visible après 48 h. Dans la solution de D5W, la vancomycine à 62,5 et à 83,3 mg/mL a conservé plus de 90 % de sa concentration initiale après 48 h. Conclusion : La préparation de solutions de vancomycine à forte concentration est faisable. Le pousse-seringue électrique n’a pas causé de précipitation. La vancomycine dans la solution de D5W à 62,5 et à 83,3 mg/mL est restée stable pendant plus de 48 h à la température ambiante. Les précipitations se sont produites dans les solutions de NaCl à 0,9 %. On recommande donc la solution de D5W comme solvant pour ce médicament.
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d'Huart É, Vigneron J, Charmillon A, Clarot I, Demoré B. Physicochemical Stability of Vancomycin at High Concentrations in Polypropylene Syringes. Can J Hosp Pharm 2019; 72:360-368. [PMID: 31692543 PMCID: PMC6799966] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
BACKGROUND In severe infections, high-concentration vancomycin may be administered by continuous infusion. The dosage of vancomycin may reach 60 mg/kg per day. OBJECTIVES To study the feasibility of preparing high-concentration vancomycin solutions (40 to 83.3 mg/mL), to study the effect of an electric syringe pump on the physical stability of high-concentration vancomycin, and to study the stability of vancomycin 62.5 and 83.3 mg/mL in 0.9% sodium chloride (0.9% NaCl) or 5% dextrose in water (D5W) with storage up to 48 h at room temperature. METHODS The following sets of syringes were prepared: (1) 4 syringes of vancomycin in 0.9% NaCl for each of 5 concentrations between 40 and 83.3 mg/mL (total 20 syringes); (2) 6 syringes at 83.3 mg/mL in 0.9% NaCl and 6 syringes at 83.3 mg/mL in D5W; and (3) 30 syringes at 83.3 mg/mL in D5W. Visual inspection was performed for all 3 syringe sets, and subvisual inspection for sets 1 and 2 (for periods of 24 h for set 1 and 48 h for sets 2 and 3). One syringe of vancomycin 83.3 mg/mL with each solvent was inserted into an electric syringe pump, and samples from the infusion line and collected after transit through the pump were inspected visually. Chemical stability was evaluated by high-performance liquid chromatography, and physical stability, pH, and osmolality were investigated. RESULTS For all sets of syringes, no physical modification was observed over time, nor were any changes observed after transit through the electric syringe pump. In 0.9% NaCl, vancomycin 62.5 and 83.3 mg/mL retained more than 90% of the initial concentration after 48 and 24 h, respectively; however, for the 83.3 mg/mL solution, precipitate was visible after 48 h. In D5W, vancomycin at 62.5 and 83.3 mg/mL retained more than 90% of the initial concentration after 48 h. CONCLUSION It was feasible to prepare high-concentration solutions of vancomycin. The electric syringe pump did not cause any precipitation. Vancomycin in D5W at 62.5 and 83.3 mg/mL was stable over 48 h at room temperature. Precipitation occurred in 0.9% NaCl. D5W is therefore recommended as the solvent for this drug.
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Affiliation(s)
- Élise d'Huart
- , PharmD, is with the Pharmacy Department, University Hospital of Nancy, Vandoeuvre-lès-Nancy, France
| | - Jean Vigneron
- , PharmD, is with the Pharmacy Department, University Hospital of Nancy, Vandoeuvre-lès-Nancy, France
| | - Alexandre Charmillon
- , MD, is with the Infectious and Tropical Diseases Department, University Hospital of Nancy, Vandoeuvre-lès-Nancy, France
| | - Igor Clarot
- , PhD, is with the CITHEFOR Laboratory (Cibles thérapeutiques formulation et expertise préclinique du médicament), Lorraine University, Nancy, France
| | - Béatrice Demoré
- , PharmD, PhD, is with the Pharmacy Department, University Hospital of Nancy, Vandoeuvre-lès-Nancy, Lorraine University, Nancy, France
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Beurton J, Clarot I, Stein J, Creusot B, Marcic C, Marchioni E, Boudier A. Long-lasting and controlled antioxidant property of immobilized gold nanoparticles for intelligent packaging. Colloids Surf B Biointerfaces 2019; 176:439-448. [DOI: 10.1016/j.colsurfb.2019.01.030] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2018] [Revised: 01/15/2019] [Accepted: 01/16/2019] [Indexed: 10/27/2022]
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Yu H, Chaimbault P, Clarot I, Chen Z, Leroy P. Labeling nitrogen species with the stable isotope 15N for their measurement by separative methods coupled with mass spectrometry: A review. Talanta 2019; 191:491-503. [DOI: 10.1016/j.talanta.2018.09.011] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2018] [Revised: 08/30/2018] [Accepted: 09/04/2018] [Indexed: 02/09/2023]
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Affiliation(s)
| | - Igor Clarot
- CITHEFOR, Université de Lorraine, F-54000 Nancy, France
| | | | - Elias Fattal
- Institut Galien Paris-Sud, Univ. Paris-Sud, CNRS, Université Paris-Saclay, 92290 Châtenay-Malabry, France
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Bonetti J, Zhou Y, Parent M, Clarot I, Yu H, Fries-Raeth I, Leroy P, Lartaud I, Gaucher C. Intestinal absorption of S-nitrosothiols: Permeability and transport mechanisms. Biochem Pharmacol 2018; 155:21-31. [PMID: 29935960 DOI: 10.1016/j.bcp.2018.06.018] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [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: 04/12/2018] [Accepted: 06/19/2018] [Indexed: 12/29/2022]
Abstract
S-Nitrosothiols, a class of NO donors, demonstrate potential benefits for cardiovascular diseases. Drugs for such chronic diseases require long term administration preferentially through the oral route. However, the absorption of S-nitrosothiols by the intestine, which is the first limiting barrier for their vascular bioavailability, is rarely evaluated. Using an in vitro model of intestinal barrier, based on human cells, the present work aimed at elucidating the mechanisms of intestinal transport (passive or active, paracellular or transcellular pathway) and at predicting the absorption site of three S-nitrosothiols: S-nitrosoglutathione (GSNO), S-nitroso-N-acetyl-l-cysteine (NACNO) and S-nitroso-N-acetyl-d-penicillamine (SNAP). These S-nitrosothiols include different skeletons carrying the nitroso group, which confer different physico-chemical characteristics and biological activities (antioxidant and anti-inflammatory). According to the values of apparent permeability coefficient, the three S-nitrosothiols belong to the medium class of permeability. The evaluation of the bidirectional apparent permeability demonstrated a passive diffusion of the three S-nitrosothiols. GSNO and NACNO preferentially cross the intestinal barrier though the transcellular pathway, while SNAP followed both the trans- and paracellular pathways. Finally, the permeability of NACNO was favoured at pH 6.4, which is close to the pH of the jejunal part of the intestine. Through this study, we determined the absorption mechanisms of S-nitrosothiols and postulated that they can be administrated through the oral route.
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Affiliation(s)
| | - Yi Zhou
- Université de Lorraine, CITHEFOR, F-54000 Nancy, France
| | | | - Igor Clarot
- Université de Lorraine, CITHEFOR, F-54000 Nancy, France
| | - Haiyan Yu
- Université de Lorraine, CITHEFOR, F-54000 Nancy, France
| | | | - Pierre Leroy
- Université de Lorraine, CITHEFOR, F-54000 Nancy, France
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Gaucher C, Boudier A, Bonetti J, Clarot I, Leroy P, Parent M. Glutathione: Antioxidant Properties Dedicated to Nanotechnologies. Antioxidants (Basel) 2018; 7:E62. [PMID: 29702624 PMCID: PMC5981248 DOI: 10.3390/antiox7050062] [Citation(s) in RCA: 152] [Impact Index Per Article: 25.3] [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: 03/28/2018] [Revised: 04/20/2018] [Accepted: 04/25/2018] [Indexed: 02/06/2023] Open
Abstract
Which scientist has never heard of glutathione (GSH)? This well-known low-molecular-weight tripeptide is perhaps the most famous natural antioxidant. However, the interest in GSH should not be restricted to its redox properties. This multidisciplinary review aims to bring out some lesser-known aspects of GSH, for example, as an emerging tool in nanotechnologies to achieve targeted drug delivery. After recalling the biochemistry of GSH, including its metabolism pathways and redox properties, its involvement in cellular redox homeostasis and signaling is described. Analytical methods for the dosage and localization of GSH or glutathiolated proteins are also covered. Finally, the various therapeutic strategies to replenish GSH stocks are discussed, in parallel with its use as an addressing molecule in drug delivery.
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Affiliation(s)
| | - Ariane Boudier
- Université de Lorraine, CITHEFOR, F-54000 Nancy, France.
| | | | - Igor Clarot
- Université de Lorraine, CITHEFOR, F-54000 Nancy, France.
| | - Pierre Leroy
- Université de Lorraine, CITHEFOR, F-54000 Nancy, France.
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Pallotta A, Philippe V, Boudier A, Leroy P, Clarot I. Highly sensitive and simple liquid chromatography assay with ion-pairing extraction and visible detection for quantification of gold from nanoparticles. Talanta 2018; 179:307-311. [DOI: 10.1016/j.talanta.2017.11.016] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2017] [Revised: 11/10/2017] [Accepted: 11/13/2017] [Indexed: 12/19/2022]
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Bouressam ML, Meyer B, Boudier A, Clarot I, Leroy P, Genoni A, Ruiz-Lopez M, Giummelly P, Liminana P, Salgues V, Kouach M, Perrin-Sarrado C, Lartaud I, Dupuis F. In vivo and in silico evaluation of a new nitric oxide donor, S,S′ -dinitrosobucillamine. Nitric Oxide 2017; 71:32-43. [DOI: 10.1016/j.niox.2017.10.004] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2017] [Revised: 09/12/2017] [Accepted: 10/12/2017] [Indexed: 12/15/2022]
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Parent M, Clarot I, Gibot S, Derive M, Maincent P, Leroy P, Boudier A. One-week in vivo sustained release of a peptide formulated into in situ forming implants. Int J Pharm 2017; 521:357-360. [DOI: 10.1016/j.ijpharm.2017.02.046] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2016] [Revised: 02/02/2017] [Accepted: 02/17/2017] [Indexed: 11/29/2022]
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Pallotta A, Boudier A, Leroy P, Clarot I. Characterization and stability of gold nanoparticles depending on their surface chemistry: Contribution of capillary zone electrophoresis to a quality control. J Chromatogr A 2016; 1461:179-84. [DOI: 10.1016/j.chroma.2016.07.031] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2016] [Revised: 07/11/2016] [Accepted: 07/12/2016] [Indexed: 12/14/2022]
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Lemée F, Mourer M, Aranda L, Clarot I, Regnouf-de-Vains JB. Bacteriophilic tetra-p-guanidinoethyl-calix[4]arene derived polymers. Syntheses and E. coli sequestration studies. NEW J CHEM 2016. [DOI: 10.1039/c6nj01563h] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [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
New resins functionalized by the antibacterial tetra-p-guanidinoethylcalix[4]arene were synthesized, and their bacteriophilic properties were evaluated (E. coli) by capillary electrophoresis.
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Affiliation(s)
- Frédéric Lemée
- Université de Lorraine
- SRSMC
- UMR 7565
- Vandœuvre-lès-Nancy
- France
| | - Maxime Mourer
- Université de Lorraine
- SRSMC
- UMR 7565
- Vandœuvre-lès-Nancy
- France
| | - Lionel Aranda
- Université de Lorraine
- Institut Jean Lamour – UMR 7198
- Vandœuvre-lès-Nancy
- France
- CNRS
| | - Igor Clarot
- Université de Lorraine
- SRSMC
- UMR 7565
- Vandœuvre-lès-Nancy
- France
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Sautrey G, Duval RE, Chevalley A, Fontanay S, Clarot I. Capillary electrophoresis for fast detection of heterogeneous population in colistin-resistant Gram-negative bacteria. Electrophoresis 2015; 36:2630-3. [PMID: 26101140 DOI: 10.1002/elps.201500064] [Citation(s) in RCA: 9] [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: 02/04/2015] [Revised: 06/10/2015] [Accepted: 06/16/2015] [Indexed: 11/08/2022]
Abstract
It has been shown that diverse strains of bacteria can be separated according to their characteristic surface properties by means of CE. We employed here this analytical technique to the study of colistin-resistance in Gram-negative bacteria, which involves the selection of mutants with modified outer membrane composition resulting in changes of surface cell properties. In the same way as with molecular entities, we performed firstly the validation of an ITP-based CE method for three common pathogenic Gram-negative bacteria namely Escherichia coli, Pseudomonas aeruginosa, and Klebsiella pneumoniae. Secondly, we compared the electrophoretic profiles of bacterial samples from a colistin-susceptible clinical isolate of K. pneumoniae and from the corresponding colistin-resistant derivative. By a simple CE run taking a few minutes, the coexistence of several bacterial subpopulations in the colistin-resistant derivative was clearly evidenced. This work encourages further research that would allow applications of CE in clinical laboratory for a daily monitoring of bacterial population in cared patients when "last-chance" colistin treatment is initiated against multidrug-resistant bacteria.
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Affiliation(s)
- Guillaume Sautrey
- CNRS, SRSMC, UMR 7565, Vandœuvre-lès-Nancy, France.,Faculté des Sciences et Technologies, Université de Lorraine, SRSMC, UMR 7565, Vandœuvre-lès-Nancy, France
| | - Raphaël E Duval
- CNRS, SRSMC, UMR 7565, Vandœuvre-lès-Nancy, France.,Faculté des Sciences et Technologies, Université de Lorraine, SRSMC, UMR 7565, Vandœuvre-lès-Nancy, France.,ABC Platform, Nancy, France
| | - Alicia Chevalley
- CNRS, SRSMC, UMR 7565, Vandœuvre-lès-Nancy, France.,Faculté des Sciences et Technologies, Université de Lorraine, SRSMC, UMR 7565, Vandœuvre-lès-Nancy, France
| | - Stéphane Fontanay
- CNRS, SRSMC, UMR 7565, Vandœuvre-lès-Nancy, France.,Faculté des Sciences et Technologies, Université de Lorraine, SRSMC, UMR 7565, Vandœuvre-lès-Nancy, France.,ABC Platform, Nancy, France
| | - Igor Clarot
- CNRS, SRSMC, UMR 7565, Vandœuvre-lès-Nancy, France.,Faculté des Sciences et Technologies, Université de Lorraine, SRSMC, UMR 7565, Vandœuvre-lès-Nancy, France
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Abstract
The polycationic pyridinium-Merrifield resinIwas prepared and subjected to bacteria sequestration studies. Its efficiency was demonstrated by capillary electrophoresis titrations, and the effectiveness of the sequestration was shown by confocal microscopy.
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Affiliation(s)
- Frédéric Lemée
- Université de Lorraine
- SRSMC
- UMR 7565
- Vandœuvre-lès-Nancy
- France
| | - Igor Clarot
- Université de Lorraine
- SRSMC
- UMR 7565
- Vandœuvre-lès-Nancy
- France
| | - Loïc Ronin
- Université de Lorraine
- SRSMC
- UMR 7565
- Vandœuvre-lès-Nancy
- France
| | - Lionel Aranda
- Université de Lorraine
- Institut Jean Lamour - UMR 7198
- Vandœuvre-lès-Nancy
- France
- CNRS
| | - Maxime Mourer
- Université de Lorraine
- SRSMC
- UMR 7565
- Vandœuvre-lès-Nancy
- France
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31
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Parent M, Dahboul F, Schneider R, Clarot I, Maincent P, Leroy P, Boudier A. A Complete Physicochemical Identity Card of S-nitrosoglutathione. CURR PHARM ANAL 2013. [DOI: 10.2174/157341213804806098] [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: 11/22/2022]
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32
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Parent M, Dahboul F, Schneider R, Clarot I, Maincent P, Leroy P, Boudier A. A Complete Physicochemical Identity Card of S-nitrosoglutathione. CURR PHARM ANAL 2013. [DOI: 10.2174/1573412911309010006] [Citation(s) in RCA: 3] [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] [Indexed: 11/22/2022]
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33
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Derbel N, Clarot I, Mourer M, Regnouf-de-Vains JB, Ruiz-López MF. Intramolecular interactions versus hydration effects on p-guanidinoethyl-phenol structure and pKa values. J Phys Chem A 2012; 116:9404-11. [PMID: 22931189 DOI: 10.1021/jp3069893] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
We analyze the structure, hydration, and pK(a) values of p-guanidinoethyl-phenol through a combined experimental and theoretical study. These issues are relevant to understand the mechanism of action of the tetrameric form, the antibacterial compound tetra-p-guanidinoethyl-calix[4]arene (Cx1). The investigated system can also be useful to model other pharmaceutical drugs bearing a guanidine function in the vicinity of an ionizable group and the effect of arginine on the pK(a) of vicinal ionizable residues (in particular tyrosine) in peptides. The p-guanidinoethyl-phenol monomer (mCx1) has two ionizable groups. One important particularity of this system is that it exhibits high molecular flexibility that potentially leads to enhanced stabilization in folded structures by direct, strong Coulombic interactions between the ionizable groups. The first pK(a) corresponding to ionization of the -OH group has experimentally been shown to be only slightly different from usual values in substituted phenols. However, because of short-range Coulombic interactions, the role of intramolecular interactions and solvation effects on the acidities of this compound is expected to be important and it has been analyzed here on the basis of theoretical calculations. We use a discrete-continuum solvation model together with quantum-mechanical calculations at the B3LYP level of theory and the extended 6-311+G(2df,2p) basis set. Both intra- and intermolecular effects are very large (~70 kcal/mol) but exhibit an almost perfect compensation, thus explaining that the actual pK(a) of mCx1 is close to free phenol. The same compensation of environmental effects applies to the second pK(a) that concerns the guanidinium group. Such a pK(a) could not be determined experimentally with standard titration techniques and in fact the theoretical study predicts a value of 14.2, that is, one unit above the pK(a) of the parent ethyl-guanidinium molecule.
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Affiliation(s)
- Najoua Derbel
- LSAMA, University of Tunis - El Manar, Campus Universitaire, 2092, Tunis, Tunisia.
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34
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de Gaetano Y, Clarot I, Regnouf-de-Vains JB. Selective complexation and extraction of Ag(i) and Zn(ii) versus Pb(ii) by polymer beads modified by attachment of a bipyridyl–calixarene-based chelate. NEW J CHEM 2012. [DOI: 10.1039/c2nj40083a] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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35
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Sautrey G, Clarot I, Salem AB, Rogalska E, Regnouf de Vains JB. Organosoluble calixarene-based quinolone carriers: syntheses, evaluation and model hydrolytic studies at the air–water interface. NEW J CHEM 2012. [DOI: 10.1039/c1nj20636b] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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36
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Sautrey G, Clarot I, Rogalska E, Regnouf-de-Vains JB. New potential prodrugs of aciclovir using calix[4]arene as a lipophilic carrier: synthesis and drug-release studies at the air–water interface. NEW J CHEM 2012. [DOI: 10.1039/c2nj40338b] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
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37
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de Gaetano Y, Clarot I, Regnouf-de-Vains JB. Cu(I) and Zn(II) chelations on polymer beads modified by attachment of a bipyridyl-calixarene-based chelate. Tetrahedron Lett 2009. [DOI: 10.1016/j.tetlet.2009.07.131] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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38
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Clarot I, Storme-Paris I, Chaminade P, Estevenon O, Nicolas A, Rieutord A. Simultaneous quantitation of tobramycin and colistin sulphate by HPLC with evaporative light scattering detection. J Pharm Biomed Anal 2009; 50:64-7. [DOI: 10.1016/j.jpba.2009.03.013] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2008] [Revised: 03/12/2009] [Accepted: 03/14/2009] [Indexed: 11/26/2022]
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39
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Dibama HM, Clarot I, Fontanay S, Salem AB, Mourer M, Finance C, Duval RE, Regnouf-de-Vains JB. Towards calixarene-based prodrugs: Drug release and antibacterial behaviour of a water-soluble nalidixic acid/calix[4]arene ester adduct. Bioorg Med Chem Lett 2009; 19:2679-82. [DOI: 10.1016/j.bmcl.2009.03.139] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2009] [Revised: 03/25/2009] [Accepted: 03/27/2009] [Indexed: 11/29/2022]
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Menuel S, Fontanay S, Clarot I, Duval RE, Diez L, Marsura A. Synthesis and Complexation Ability of a Novel Bis- (guanidinium)-tetrakis-(β-cyclodextrin) Dendrimeric Tetrapod as a Potential Gene Delivery (DNA and siRNA) System. Study of Cellular siRNA Transfection. Bioconjug Chem 2008; 19:2357-62. [DOI: 10.1021/bc800193p] [Citation(s) in RCA: 39] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- S. Menuel
- UMR 7565 SRSMC and UMR 7564 LCPME, CNRS, Nancy-Université, Faculté de Pharmacie 5 rue A. Lebrun, BP 80403, 54001 Nancy Cedex, France
| | - S. Fontanay
- UMR 7565 SRSMC and UMR 7564 LCPME, CNRS, Nancy-Université, Faculté de Pharmacie 5 rue A. Lebrun, BP 80403, 54001 Nancy Cedex, France
| | - I. Clarot
- UMR 7565 SRSMC and UMR 7564 LCPME, CNRS, Nancy-Université, Faculté de Pharmacie 5 rue A. Lebrun, BP 80403, 54001 Nancy Cedex, France
| | - R. E. Duval
- UMR 7565 SRSMC and UMR 7564 LCPME, CNRS, Nancy-Université, Faculté de Pharmacie 5 rue A. Lebrun, BP 80403, 54001 Nancy Cedex, France
| | - L. Diez
- UMR 7565 SRSMC and UMR 7564 LCPME, CNRS, Nancy-Université, Faculté de Pharmacie 5 rue A. Lebrun, BP 80403, 54001 Nancy Cedex, France
| | - A. Marsura
- UMR 7565 SRSMC and UMR 7564 LCPME, CNRS, Nancy-Université, Faculté de Pharmacie 5 rue A. Lebrun, BP 80403, 54001 Nancy Cedex, France
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41
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Chatjigakis AK, Clarot I, Cardot PJP, Nowakowski R, Coleman A. REVERSED PHASE CHROMATOGRAPHIC STUDY OF THE INCLUSION SELECTIVITY OF TERPENE DERIVATIVES WITH β-CYCLODEXTRIN IN WATER/COSOLVENT MIXTURES. J LIQ CHROMATOGR R T 2006. [DOI: 10.1081/jlc-100101731] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Affiliation(s)
- Alexis K. Chatjigakis
- a Centre d'Etudes Pharmaceutiques, Université Paris Sud , Laboratoire de Chimie Analytique et d'Electrochimie Organiques, Rue J. B. Clément, Châtenay-Malabry , 92296 , France
| | - Igor Clarot
- b Faculté de Pharmacie-Université de Limoges , Laboratoire de Chimie Analytique et Bromatologie, 2 rue du Dr Marcland, Limoges Cedex , 87025 , France
| | - Philippe J. P. Cardot
- c Faculté de Pharmacie-Université de Limoges , Laboratoire de Chimie Analytique et Bromatologie, 2 rue du Dr Marcland, Limoges Cedex , 87025 , France
| | - Robert Nowakowski
- b Faculté de Pharmacie-Université de Limoges , Laboratoire de Chimie Analytique et Bromatologie, 2 rue du Dr Marcland, Limoges Cedex , 87025 , France
| | - Anthony Coleman
- b Faculté de Pharmacie-Université de Limoges , Laboratoire de Chimie Analytique et Bromatologie, 2 rue du Dr Marcland, Limoges Cedex , 87025 , France
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Douville V, Lodi A, Miller J, Nicolas A, Clarot I, Prilleux B, Megoulas N, Koupparis M. Evaporative light scattering detection (ELSD): a tool for improved quality control of drug substances. Pharmeur Sci Notes 2006; 2006:9-15. [PMID: 17694640] [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] [Subscribe] [Scholar Register] [Indexed: 05/16/2023]
Abstract
Thanks to the recent technological advancements, evaporative light-scattering detection (ELSD) is regarded as a valuable alternative to UV detection for liquid chromatographic analysis of substances that do not contain a chromophore. In the field of substances for pharmaceutical use, LC-ELSD appears to be suitable for aminoglycosides, most of which (for ex. gentamicin) are presently controlled in the Ph. Eur. by pulsed amperometric detection. Other substances (ex sugars, triglycerides) presently employing refractometrric detection, could be conveniently analysed by LC-ELSD. ELS detection is regarded as robust and relatively simple, although not particularly sensitive. A key feature of ELSD is that - unlike refractometry - it can operate in gradient mode, thus allowing application of more selective liquid chromatographic methods. ELSD can also be used to set up MS-compatible methods, as the mobile phase constraints are essentially the same. Due to all the above, ELSD is becoming increasingly used in pharmacopoeial methods.
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Affiliation(s)
- V Douville
- European Directorate for the Quality of Medicines Laboratory, Council of Europe, F-67029 Strasbourg, France
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43
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Clarot I, Regazzeti A, Auzeil N, Laadani F, Citton M, Netter P, Nicolas A. Analysis of neomycin sulfate and framycetin sulfate by high-performance liquid chromatography using evaporative light scattering detection. J Chromatogr A 2005; 1087:236-44. [PMID: 16130719 DOI: 10.1016/j.chroma.2005.05.054] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
A rapid and simple method for the determination of main components and related substances of both neomycin sulfate and framycetin sulfate by HPLC and evaporative light scattering detection (ELSD) is described. The method was also used to determine the neomycin B and the sample sulfate content. Detection and quantitation of aminoglycoside antibiotics are problematic because of the lack of UV absorbing chromophore. The use of a universal detector avoids the need for sample derivatization or use of specific detector based on pulsed amperometry described to be difficult in routine assays. Separation was performed with a Polaris C18 150 mm x 4.6 mm i.d., 3 microm reversed-phase column with a solution of 170mM trifluoroacetic acid (TFA) mobile phase at a flow rate of 0.2 mL/min. The chromatographic parameters were optimized with the help of experimental design software. Mass spectrometry (MS) was employed to confirm the ELSD profile. The final method was validated using methodology described by the International Conference of Harmonization in the field of Active Pharmaceutical Ingredients. Commercial samples of different sources were analyzed and results were in good agreement with specifications of the European Pharmacopoeia.
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Affiliation(s)
- I Clarot
- Laboratoire de Chimie Analytique, UMR 7561 CNRS-UHP, Faculté de Pharmacie, 5 rue Albert Lebrun, F-54000 Nancy Cedex, France.
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Clarot I, Chaimbault P, Hasdenteufel F, Netter P, Nicolas A. Determination of gentamicin sulfate and related compounds by high-performance liquid chromatography with evaporative light scattering detection. J Chromatogr A 2004; 1031:281-7. [PMID: 15058594 DOI: 10.1016/j.chroma.2003.12.032] [Citation(s) in RCA: 75] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Abstract
A rapid and simple method for the separation and quantitation of gentamicin sulfate by HPLC coupled with evaporative light scattering detection (ELSD) has been developed. Detection of the different components of gentamicin is problematic because of the lack of UV absorbing chromophore. The use of the universal ELSD avoids the need for sample derivatization or use of specific detector such as pulsed amperometry. Separation was performed on a highpurity C18 125 mm x 4 mm i.d., 3 microm, reversed phase column with 48.5 mM trifluoroacetic acid-methanol (97:3, v/v), as mobile phase at a flow rate of 0.7 ml/min. The influence of the gas nature, gas pressure and temperature of the drift tube of the detector on the detection response was investigated. Optimization was performed with the help of a specific experimental design software. This method allows the determination of the composition in components C1, C1a, C2, C2a and C2b of gentamicin sulfate samples. Mass spectrometry was employed to confirm the ELSD chromatographic profile. The method was validated using methodology described by the International Conference of Harmonization in the field of Medicinal Substances. Commercial samples of different sources were analyzed and results were in good agreement with specifications of both European and United States Pharmacopoeia.
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Affiliation(s)
- I Clarot
- Laboratoire de Chimie Analytique, UMR 7561 CNRS-UHP, Faculté de Pharmacie, Université Henri-Poincaré-Nancy I, 5 Rue Albert Lebrun, F-54000 Nancy, France.
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Clarot I, Dreyfuss MF, Domelier R, Battu S, Cardot PJP. Deferred standards, an on-line qualification, validation and system stability probe for chromatographic assay. J Chromatogr A 2002; 958:79-88. [PMID: 12134833 DOI: 10.1016/s0021-9673(02)00305-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Specific programming of automated HPLC systems allows total on-line qualification, validation and stability monitoring using the concept of deferred standards. Setting up such a process for routine analyses in an automated HPLC system requires specific autosampler programming as well as specific monitoring software. With an autosampler, a double injection procedure is programmed, the first introducing the sample, and the second, a few minutes deferred, the deferred control standard. Two additional compounds are therefore added to the sample before and during the chromatographic process: the intemal standard for sample quantification and the deferred standard for system control. Specific methodologies are described of how to obtain classical quantitative analysis information as well as system qualification validation stability information. Experiments were performed to develop specified methodologies to monitor the quality of quantitative analysis during the life of the column by using the deferred standard concept to probe the effects of column ageing on separation characteristics.
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Affiliation(s)
- I Clarot
- Laboratoire de Chimie Analytique, Faculté de Pharmacie, Nancy, France
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Clarot I, Cledat D, Guillaume YC, Cardot PJP. Chromatographic study of terpene-β-cyclodextrin complexes on porous graphitic carbon stationary phase. Chromatographia 2001. [DOI: 10.1007/bf02491198] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Clarot I, Clédat D, Battu S, Cardot PJ. Chromatographic study of terpene derivatives on porous graphitic carbon stationary phase with beta-cyclodextrin as mobile phase modifier. J Chromatogr A 2000; 903:67-76. [PMID: 11153956 DOI: 10.1016/s0021-9673(00)00907-9] [Citation(s) in RCA: 30] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
The stoichiometric coefficients and apparent formation constants (Kf) of alpha-terpineol, thymol, geraniol and linalool complexes with beta-cyclodextrin (beta-CD) were determined using HPLC with a porous graphitic carbon (PGC) chromatographic support. Measurements were performed with four different methanol-water mobile phases. All the terpene derivatives under study form 1:1 guest-CD complexes. Graphs of Kf as a function of the mobile phase composition appeared different from those classically described for RP-C18 and suggest that the PGC stationary phase could play an active role in the complexation process. Solute-CD inclusion and solute-stationary phase interactions may be involved in this specific behavior.
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Affiliation(s)
- I Clarot
- Laboratoire de Chimie Analytique et de Bromatologie, Université de Limoges, Faculté de Pharmacie, France
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48
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Clarot I, Cledat D, Boulkanz L, Assidjo E, Chianea T, Cardot PJ. Elution characteristics of natural cyclodextrins on porous graphitic carbon. J Chromatogr Sci 2000; 38:38-45. [PMID: 10654791 DOI: 10.1093/chromsci/38.1.38] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
The retention behavior of natural alpha-, beta-, and gamma-cyclodextrins on a porous graphitic carbon (PGC) stationary phase is investigated. Unusual retention properties for reversed-phase chromatographic conditions are observed with acetonitrile-methanol and water-methanol mixtures as mobile phases. It is assumed that the retention process is governed not only by the standard solvophobic effect but also by specific interactions described as "CD-PGC" effect. The retention factor versus the volumetric methanol fraction in the mobile phase show second-order curves expressing this double mechanism hypothesis. van't Hoff plots demonstrate the contribution of these two retention processes. The retention factor of each natural cyclodextrin is shown to depend on the mobile phase property to act as a proton acceptor, according to the solvent selectivity classification described by Snyder. The "CD-PGC" effect is interpreted as an equilibrium between different interactions: cyclodextrin-PGC stationary phase, London dispersion forces, and cyclodextrin-mobile phase hydrogen bonding. The balance of these interactions may monitor the orientation of the cyclodextrin molecule facing the carbon surface, which is therefore suspected to be the major parameter of this retention mechanism.
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Affiliation(s)
- I Clarot
- Laboratoire de Chimie Analytique et de Bromatologie, Universite de Limoges, Faculte de Pharmacie, France
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Chianéa T, Cardot PJ, Assidjo E, Monteil J, Clarot I, Krausz P. Field- and flow-dependent trapping of red blood cells on polycarbonate accumulation wall in sedimentation field-flow fractionation. J Chromatogr B Biomed Sci Appl 1999; 734:91-9. [PMID: 10574194 DOI: 10.1016/s0378-4347(99)00339-4] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Sedimentation field-flow fractionation (SdFFF) instrumentation is now mature. Methodological procedure and particle separation development rules are well established even in the case of biological species. However, in some biological applications, retention properties of samples not predicted by any field-flow fractionation (FFF) elution models are observed. It is demonstrated that the trapping of cellular material in the separation system is not related to geometrical instrumentation features but to channel wall characteristics. The physicochemical particle-wall attractive interactions are different depending on the flow-rate and field intensity applied. Separation power in SdFFF for biological species is therefore limited by the intensity of these interactions. In terms of separation, a balance is to be found between external field and flow intensity to limit particle-wall interactions.
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Affiliation(s)
- T Chianéa
- Laboratoire de Chimie Analytique et Bromatologie, Université de Limoges, Faculté de Pharmacie, France
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50
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Abstract
Field-flow fractionation (FFF) is an analytical technique particularly suitable for the separation, isolation, and characterization of macromolecules and micrometer- or submicrometer-sized particles. This chromatographic-like methodology can modulate the retention of micron-sized species according to an elution mode described to date as "steric hyperlayer". In such a model, differences in sample species size, density, or other physical parameters make particle selective elution possible depending on the configuration and the operating conditions of the FFF system. Elution characteristics of micron-sized particles of biological origin, such as cells, can be modified using media and carrier phases of different osmolarities. In these media, a cells average size, density, and shape are modified. Therefore, systematic studies of a single reference cell population, red blood cells (RBCs), are performed with 2 sedimentation FFF systems using either gravity (GrFFF) or a centrifugational field (SdFFF). However, in all cases, normal erythrocyte in isotonic suspension elutes as a single peak when fractionated in these systems. With carrier phases of different osmolarities, FFF elution characteristics of RBCs are modified. Retention modifications are qualitatively consistent with the "steric-hyperlayer" model. Such systematic studies confirm the key role of size, density, and shape in the elution mode of RBCs in sedimentation FFF for living, micronsized biological species. Using polymers as an analogy, the RBC population is described as highly "polydisperse". However, this definition must be reconsidered depending on the parameters under concern, leading to a matricial concept: multipolydispersity. It is observed that multipolydispersity modifications of a given RBC population are qualitatively correlated to the eluted sample band width.
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Affiliation(s)
- N E Assidjo
- Laboratoire de Chimie Analytique et Bromatologie, Université de Limoges, Faculté de Pharmacie, France
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