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Low Drug Loading Hampers the Clinical Translation of Peptide Drugs-Containing Metered-Dose Inhalers. Pharmaceuticals (Basel) 2022; 15:ph15040389. [PMID: 35455386 PMCID: PMC9031202 DOI: 10.3390/ph15040389] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2022] [Revised: 03/16/2022] [Accepted: 03/18/2022] [Indexed: 12/10/2022] Open
Abstract
Peptide-based drugs have attracted extensive attention from the medical and pharmaceutical industry because of their relatively high safety and efficacy. However, most of the peptide drugs approved are administrated by injection, which can easily cause poor patient compliance. In this circumstance, pulmonary administration as an alternative to injection administration can not only avoid the above issue but also accelerate the absorption rate of peptide drugs and improve bioavailability. Among the pulmonary delivery systems available on the market, metered-dose inhalers (MDIs) have emerged as appealing candidates for pulmonary delivery systems with clinical translational value, owing to their many merits, including portable, easy-to-operate, and cost-effective properties. Nevertheless, the industrialization of peptide drugs-containing MDIs encounters a bottleneck of low drug loading, owing to the incompatibility between the propellant and the peptide drugs, which cannot be effectively overcome by the current carrier particle encapsulation strategy. Herein, we put forward the following strategies: (1) To screen amphiphilic materials with high surface activity and strong interaction with peptide drugs; (2) To construct a chemical connection between peptide drugs and amphiphilic substances; (3) To optimize the cosolvent for dispersing peptide drugs. We suppose these strategies have the potential to defeat the bottleneck problem and provide a new idea for the industrialization of peptide drugs-containing MDIs.
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2
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Liu SJ, Yu ZW, Qiao L, Liu BH. Electrochemistry-mass spectrometry for mechanism study of oxygen reduction at water/oil interface. Sci Rep 2017; 7:46669. [PMID: 28436495 PMCID: PMC5402391 DOI: 10.1038/srep46669] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2017] [Accepted: 03/22/2017] [Indexed: 11/29/2022] Open
Abstract
Electrochemistry methods have been widely employed in the development of renewable energy, and involved in various processes, e.g. water splitting and oxygen reduction. Remarkable progress notwithstanding, there are still many challenges in further optimization of catalysts to achieve high performance. For this purpose, an in-depth understanding of reaction mechanism is needed. In this study, an electrochemistry-mass spectrometry method based on a Y-shaped dual-channel microchip as electrochemical cell and ionization device was demonstrated. Combined solutions of aqueous phase and oil phase were introduced into mass spectrometer directly when electrochemical reactions were happening to study the reduction of oxygen by decamethylferrocene or tetrathiafulvalene under the catalysis of a metal-free porphyrin, tetraphenylporphyrin, at water/1,2-dichloroethane interfaces. Monoprotonated and diprotonated tetraphenylporphyrin were detected by mass spectrometer, confirming the previously proposed mechanism of the oxygen reduction reaction. This work offers a new approach to study electrochemical reactions at liquid-liquid interface.
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Affiliation(s)
- Shu-Juan Liu
- Department of Chemistry, State Key Laboratory of Molecular Engineering of Polymers and Institutes of Biomedical Sciences, Fudan University, Shanghai, 200433, China
| | - Zheng-Wei Yu
- Department of Chemistry, State Key Laboratory of Molecular Engineering of Polymers and Institutes of Biomedical Sciences, Fudan University, Shanghai, 200433, China
| | - Liang Qiao
- Department of Chemistry, State Key Laboratory of Molecular Engineering of Polymers and Institutes of Biomedical Sciences, Fudan University, Shanghai, 200433, China
- Shanghai Stomatological Hospital, Fudan University, Shanghai, 200001, China
| | - Bao-Hong Liu
- Department of Chemistry, State Key Laboratory of Molecular Engineering of Polymers and Institutes of Biomedical Sciences, Fudan University, Shanghai, 200433, China
- Shanghai Stomatological Hospital, Fudan University, Shanghai, 200001, China
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Cámara CI, Riva JS, Juárez AV, Yudi LM. Interaction of chitosan and self-assembled distearoylphosphatidic acid molecules at liquid/liquid and air/water interfaces. Effect of temperature. J PHYS ORG CHEM 2016. [DOI: 10.1002/poc.3642] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Candelaria I. Cámara
- Instituto de Investigaciones en Fisicoquímica de Córdoba (INFIQC- CONICET). Departamento de Fisicoquímica, Facultad de Ciencias Químicas; Universidad Nacional de Córdoba; Ala 1, Pabellón Argentina, Ciudad Universitaria 5000 Córdoba Argentina
| | - Julieta S. Riva
- Instituto de Investigaciones en Fisicoquímica de Córdoba (INFIQC- CONICET). Departamento de Fisicoquímica, Facultad de Ciencias Químicas; Universidad Nacional de Córdoba; Ala 1, Pabellón Argentina, Ciudad Universitaria 5000 Córdoba Argentina
| | - Ana V. Juárez
- Instituto de Investigaciones en Fisicoquímica de Córdoba (INFIQC- CONICET). Departamento de Fisicoquímica, Facultad de Ciencias Químicas; Universidad Nacional de Córdoba; Ala 1, Pabellón Argentina, Ciudad Universitaria 5000 Córdoba Argentina
| | - Lidia M. Yudi
- Instituto de Investigaciones en Fisicoquímica de Córdoba (INFIQC- CONICET). Departamento de Fisicoquímica, Facultad de Ciencias Químicas; Universidad Nacional de Córdoba; Ala 1, Pabellón Argentina, Ciudad Universitaria 5000 Córdoba Argentina
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4
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Zhang JT, Wang HY, Zhu W, Cai TT, Guo YL. Solvent-Assisted Electrospray Ionization for Direct Analysis of Various Compounds (Complex) from Low/Nonpolar Solvents and Eluents. Anal Chem 2014; 86:8937-42. [DOI: 10.1021/ac502656a] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Affiliation(s)
- Jun-Ting Zhang
- National Center for Organic
Mass Spectrometry in Shanghai, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Road, Shanghai 200032, People’s Republic of China
| | - Hao-Yang Wang
- National Center for Organic
Mass Spectrometry in Shanghai, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Road, Shanghai 200032, People’s Republic of China
| | - Wei Zhu
- National Center for Organic
Mass Spectrometry in Shanghai, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Road, Shanghai 200032, People’s Republic of China
| | - Ting-Ting Cai
- National Center for Organic
Mass Spectrometry in Shanghai, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Road, Shanghai 200032, People’s Republic of China
| | - Yin-Long Guo
- National Center for Organic
Mass Spectrometry in Shanghai, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Road, Shanghai 200032, People’s Republic of China
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5
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Alvarez de Eulate E, Qiao L, Scanlon MD, Girault HH, Arrigan DWM. Fingerprinting the tertiary structure of electroadsorbed lysozyme at soft interfaces by electrostatic spray ionization mass spectrometry. Chem Commun (Camb) 2014; 50:11829-32. [DOI: 10.1039/c4cc05545d] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
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6
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Agomelatine strongly interacts with zwitterionic DPPC and charged DPPG membranes. BIOCHIMICA ET BIOPHYSICA ACTA-BIOMEMBRANES 2014; 1838:2798-806. [PMID: 25091390 DOI: 10.1016/j.bbamem.2014.07.025] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/22/2013] [Revised: 07/07/2014] [Accepted: 07/25/2014] [Indexed: 01/01/2023]
Abstract
Depression is one of the most common psychiatric diseases in the population. Agomelatine is a novel antidepressant drug with melatonin receptor agonistic and serotonin 5-HT2C antagonistic properties. Furthermore, being a melatonergic drug, agomelatine has the potential of being used in therapeutic applications like melatonin as an antioxidant, anti-inflammatory and antiapoptotic drug. The action mechanism of agomelatine on the membrane structure has not been clarified yet. In the present study, we aimed to investigate the interaction of agomelatine with model membranes of dipalmitoylphosphatidylcholine (DPPC) and dipalmitoylphosphatidylgylcerol (DPPG) by Fourier transform infrared (FTIR) spectroscopy and differential scanning calorimetry (DSC). We found that agomelatine interacts with the head group in such a manner that it destabilizes the membrane architecture to a large extent. Thus, agomelatine causes alterations in the order, packing and dynamics of the DPPC and DPPG model membranes. Our results suggest that agomelatine strongly interacts with zwitterionic and charged membrane phospholipids. Because lipid structure and dynamics may have influence on the structure of membrane bound proteins and affect the signal transduction systems of membranes, these effects of agomelatine may be important in its action mechanism.
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7
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Potential-mediated interaction between dextran sulfate and negatively charged phospholipids films at air/water and liquid/liquid interfaces. Electrochim Acta 2013. [DOI: 10.1016/j.electacta.2013.09.137] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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8
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Lucci P, Pacetti D, Calzuola I, Marsili V, Perni S, Giavarini F, Frega NG, Gianfranceschi GL. Characterization of phospholipid molecular species and peptide molecules in wheat sprout hydroalcoholic extract. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2013; 61:11453-11459. [PMID: 24156493 DOI: 10.1021/jf4034392] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
The phospholipid molecular species and the main peptide molecules of wheat sprout hydroalcoholic extract have been fully characterized by normal-phase high performance liquid chromatography coupled online with positive electrospray ionization tandem mass spectrometry. The extract that resulted was rich in phospholipid molecular species formed by the combination of the two essential fatty acids (α-linoleic and α-linolenic). These species accounted for 51.7% of total phosphatidic acid, 47.3% of total phosphatidylethanolamine, 37.7% of total phosphatidylcholine, and 14.1% of total phosphatidylinositol. The last one showed the highest amounts of species containing palmitic acid, thus representing the most saturated phospholipid class. The extract was also shown to contain several peptide sequences with both potential antioxidant domains and interaction sites for phospholipids (i.e., H-Ala-Gly-Ser-Met-Met-Cys-NH2, H-Tyr-Met-Thr-Val-Val-Ala-Cys-NH2, etc.); this latter finding can have a highly positive impact on the poor peptides bioavailability. Because of the presence of essential fatty acids-rich phospholipids and bioactive peptides, wheat sprout hydroalcoholic extract can be considered a potential functional food ingredient.
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Affiliation(s)
- Paolo Lucci
- Department of Nutrition and Biochemistry, Faculty of Sciences, Pontificia Universidad Javeriana , Bogotà, Distrito Capital, Colombia
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Arrigan D, Herzog G, Scanlon M, Strutwolf J. Bioanalytical Applications of Electrochemistry at Liquid-Liquid Microinterfaces. ELECTROANALYTICAL CHEMISTRY: A SERIES OF ADVANCES 2013. [DOI: 10.1201/b15576-4] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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10
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Cámara CI, Quiroga MVC, Wilke N, Jimenez-Kairuz A, Yudi LM. Effect of chitosan on distearoylphosphatidylglycerol films at air/water and liquid/liquid interfaces. Electrochim Acta 2013. [DOI: 10.1016/j.electacta.2013.01.137] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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11
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Lu Y, Liu F, Lion N, Girault HH. Dual-channel electrospray microchip. JOURNAL OF THE AMERICAN SOCIETY FOR MASS SPECTROMETRY 2013; 24:454-457. [PMID: 23385957 DOI: 10.1007/s13361-012-0547-z] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/10/2012] [Revised: 11/11/2012] [Accepted: 11/21/2012] [Indexed: 06/01/2023]
Abstract
A dual-channel electrospray microchip has been developed for electrospray ionization mass spectrometry (ESI-MS) where aqueous samples are mixed at the Taylor cone with an organic buffer. Due to the fast and effective mixing in the Taylor cone, the aqueous sample can be well ionized with a high ion intensity. The influence of geometric parameters such as the distance between the two microchannels at their junction at the tip of the emitter has been investigated together with chemical parameters such as the organic buffer composition.
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Affiliation(s)
- Yu Lu
- Laboratoire d'Electrochimie Physique et Analytique, Station 6, Ecole Polytechnique Fédérale de Lausanne, CH-1015 Lausanne, Switzerland
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13
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Peljo P, Qiao L, Murtomäki L, Johans C, Girault HH, Kontturi K. Electrochemically controlled proton-transfer-catalyzed reactions at liquid-liquid interfaces: nucleophilic substitution on ferrocene methanol. Chemphyschem 2012; 14:311-4. [PMID: 23225302 DOI: 10.1002/cphc.201200953] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2012] [Indexed: 11/08/2022]
Abstract
The generation of α-ferrocenyl carbocations from ferrocenyl alcohols for S(N)1 substitution at the water-organic solvent interface is initiated by the transfer of protons into the organic phase. The proton flux, and hence the reaction rate, can be controlled by addition of a suitable "phase-transfer catalyst" anion or by external polarization with a potentiostat, providing a new method for the synthesis of ferrocene derivatives.
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Affiliation(s)
- Pekka Peljo
- Department of Chemistry, Aalto University, Finland
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14
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Alvarez de Eulate E, Silvester DS, Arrigan DWM. Behavior of Lysozyme at the Electrified Water/Room Temperature Ionic Liquid Interface. Chem Asian J 2012; 7:2559-61. [DOI: 10.1002/asia.201200390] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2012] [Indexed: 11/05/2022]
Affiliation(s)
- Eva Alvarez de Eulate
- Department of Chemistry, Nanochemistry Research Institute, Curtin University, GPO Box U1987 Perth WA 6845 (Australia), Fax: (+61) 8 92669735
| | - Debbie S. Silvester
- Department of Chemistry, Nanochemistry Research Institute, Curtin University, GPO Box U1987 Perth WA 6845 (Australia), Fax: (+61) 8 92669735
| | - Damien W. M. Arrigan
- Department of Chemistry, Nanochemistry Research Institute, Curtin University, GPO Box U1987 Perth WA 6845 (Australia), Fax: (+61) 8 92669735
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15
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Ensafi AA, Arabzadeh A. A new sensor for electrochemical determination of captopril using chlorpromazine as a mediator at a glassy carbon electrode. JOURNAL OF ANALYTICAL CHEMISTRY 2012. [DOI: 10.1134/s1061934812050024] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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16
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Alvarez de Eulate E, Arrigan DWM. Adsorptive Stripping Voltammetry of Hen-Egg-White-Lysozyme via Adsorption–Desorption at an Array of Liquid–Liquid Microinterfaces. Anal Chem 2012; 84:2505-11. [DOI: 10.1021/ac203249p] [Citation(s) in RCA: 44] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Affiliation(s)
- Eva Alvarez de Eulate
- Nanochemistry Research
Institute, Department of Chemistry, Curtin University, GPO Box U1987, Perth, WA 6845, Australia
| | - Damien W. M. Arrigan
- Nanochemistry Research
Institute, Department of Chemistry, Curtin University, GPO Box U1987, Perth, WA 6845, Australia
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17
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Méndez MA, Nazemi Z, Uyanik I, Lu Y, Girault HH. Melittin adsorption and lipid monolayer disruption at liquid-liquid interfaces. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2011; 27:13918-13924. [PMID: 21962026 DOI: 10.1021/la202970g] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
Melittin, a membrane-active peptide with antimicrobial activity, was investigated at the interface formed between two immiscible electrolyte solutions (ITIES) supported on a metallic electrode. Ion-transfer voltammetry showed well-defined semi-reversible transfer peaks along with adsorptive peaks. The reversible adsorption of melittin at the liquid-liquid interface is qualitatively discussed from voltammetric data and experimentally confirmed by real-time image analysis of video snapshots. It is also demonstrated that polarization of the water/1,2-DCE interface results in drastic drop shape variations caused by large variations of the interfacial tension. The experimental data also confirmed that maximum adsorption occurs near the ion transfer potential. Finally, the interaction of melittin with a monolayer of L-α-dipalmitoyl phosphatidylcholine (DPPC) was also investigated showing that melittin destabilizes the lipidic monolayer facilitating its desorption. The non-covalent complex formation between melittin and DPPC was confirmed by mass spectrometry.
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Affiliation(s)
- Manuel A Méndez
- Laboratoire d'Electrochimie Physique et Analytique, Ecole Polytechnique Fédérale de Lausanne, Station 6, CH-1015 Lausanne, Switzerland
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18
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Stockmann TJ, Lu Y, Zhang J, Girault HH, Ding Z. Interfacial Complexation Reactions of Sr2+ with Octyl(phenyl)-N,N-diisobutylcarbamoylmethylphosphine Oxide for Understanding Its Extraction in Reprocessing Spent Nuclear Fuels. Chemistry 2011; 17:13206-16. [DOI: 10.1002/chem.201102491] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2011] [Indexed: 11/11/2022]
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19
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Perni S, Calzuola I, Gianfranceschi GL, Giavarini F, Lucci P, Pacetti D, Frega NG, Marsili V. Biochemical and mass spectrometry recognition of phospholipid-peptide complexes in wheat sprouts extract. J Pept Sci 2011; 17:744-50. [DOI: 10.1002/psc.1397] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2011] [Revised: 06/14/2011] [Accepted: 06/23/2011] [Indexed: 11/06/2022]
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20
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Colqui Quiroga M, Monzón L, Yudi L. Voltammetric study and surface pressure isotherms describing Flunitrazepam incorporation into a distearoylphosphatidic acid film adsorbed at air/water and water/1,2-dichloroethane interfaces. Electrochim Acta 2011. [DOI: 10.1016/j.electacta.2011.06.005] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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21
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Hartvig RA, Méndez MA, Weert MVD, Jorgensen L, Østergaard J, Girault HH, Jensen H. Interfacial Complexes between a Protein and Lipophilic Ions at an Oil−Water Interface. Anal Chem 2010; 82:7699-705. [DOI: 10.1021/ac101528r] [Citation(s) in RCA: 45] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Rune A. Hartvig
- Department of Pharmaceutics and Analytical Chemistry, Faculty of Pharmaceutical Sciences, University of Copenhagen, Universitetsparken 2, DK-2100 Copenhagen, Denmark, and Laboratoire d’Electrochimie Physique et Analytique, Ecole Polytechnique Fédérale de Lausanne (EPFL), Station 6, CH-1015 Lausanne, Switzerland
| | - Manuel A. Méndez
- Department of Pharmaceutics and Analytical Chemistry, Faculty of Pharmaceutical Sciences, University of Copenhagen, Universitetsparken 2, DK-2100 Copenhagen, Denmark, and Laboratoire d’Electrochimie Physique et Analytique, Ecole Polytechnique Fédérale de Lausanne (EPFL), Station 6, CH-1015 Lausanne, Switzerland
| | - Marco van de Weert
- Department of Pharmaceutics and Analytical Chemistry, Faculty of Pharmaceutical Sciences, University of Copenhagen, Universitetsparken 2, DK-2100 Copenhagen, Denmark, and Laboratoire d’Electrochimie Physique et Analytique, Ecole Polytechnique Fédérale de Lausanne (EPFL), Station 6, CH-1015 Lausanne, Switzerland
| | - Lene Jorgensen
- Department of Pharmaceutics and Analytical Chemistry, Faculty of Pharmaceutical Sciences, University of Copenhagen, Universitetsparken 2, DK-2100 Copenhagen, Denmark, and Laboratoire d’Electrochimie Physique et Analytique, Ecole Polytechnique Fédérale de Lausanne (EPFL), Station 6, CH-1015 Lausanne, Switzerland
| | - Jesper Østergaard
- Department of Pharmaceutics and Analytical Chemistry, Faculty of Pharmaceutical Sciences, University of Copenhagen, Universitetsparken 2, DK-2100 Copenhagen, Denmark, and Laboratoire d’Electrochimie Physique et Analytique, Ecole Polytechnique Fédérale de Lausanne (EPFL), Station 6, CH-1015 Lausanne, Switzerland
| | - Hubert H. Girault
- Department of Pharmaceutics and Analytical Chemistry, Faculty of Pharmaceutical Sciences, University of Copenhagen, Universitetsparken 2, DK-2100 Copenhagen, Denmark, and Laboratoire d’Electrochimie Physique et Analytique, Ecole Polytechnique Fédérale de Lausanne (EPFL), Station 6, CH-1015 Lausanne, Switzerland
| | - Henrik Jensen
- Department of Pharmaceutics and Analytical Chemistry, Faculty of Pharmaceutical Sciences, University of Copenhagen, Universitetsparken 2, DK-2100 Copenhagen, Denmark, and Laboratoire d’Electrochimie Physique et Analytique, Ecole Polytechnique Fédérale de Lausanne (EPFL), Station 6, CH-1015 Lausanne, Switzerland
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Colqui Quiroga MV, Monzón LM, Yudi LM. Interaction of triflupromazine with distearoylphosphatidylglycerol films studied by surface pressure isotherms and cyclic voltammetry at a 1,2-dichloroethane/water interface. Electrochim Acta 2010. [DOI: 10.1016/j.electacta.2010.05.033] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Santos HA, García-Morales V, Pereira CM. Electrochemical properties of phospholipid monolayers at liquid-liquid interfaces. Chemphyschem 2010; 11:28-41. [PMID: 19943272 DOI: 10.1002/cphc.200900609] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
Biomembrane models built at the interface between two immiscible electrolytes (ITIES) are useful systems to study phenomena of biological relevance by means of their electrochemical processes. The unique properties of ITIES allow one either to control or measure the potential difference across the biomimetic membranes. Herein we focus on phospholipid monolayers adsorbed at liquid-liquid interfaces, and besides discussing recent developments on the subject, we describe electrochemical techniques that can be used to get insight on the interfacial processes and electrostatic properties of phospholipid membranes at the ITIES. In particular, we examine the electrochemical and physicochemical properties of (modified) phospholipid monolayers and their interaction with other biologically relevant compounds. The use of liquid-liquid electrochemistry as a powerful tool to characterize drug properties is outlined. Although this review is not a survey of all the work in the field, it provides a comprehensive referencing to current research.
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Affiliation(s)
- Hélder A Santos
- Division of Pharmaceutical Technology, Faculty of Pharmacy, University of Helsinki, P.O. Box 56 Viikinkaari 5 E, 00014, Finland.
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Prudent M, Méndez MA, Jana DF, Corminboeuf C, Girault HH. Formation and study of single metal ion–phospholipid complexes in biphasic electrospray ionization mass spectrometry. Metallomics 2010; 2:400-6. [DOI: 10.1039/c003647a] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
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Girault H, Liu B, Qiao L, Bi H, Prudent M, Lion N, Abonnenc M. Electrochemical reactions and ionization processes. EUROPEAN JOURNAL OF MASS SPECTROMETRY (CHICHESTER, ENGLAND) 2010; 16:341-349. [PMID: 20530840 DOI: 10.1255/ejms.1081] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
Abstract
Electrochemical or photo-electrochemical reactions in both electrospray ionization and laser desorption ionization are discussed stressing the role of the electrode reaction in influencing the ionization process. In particular, upon application of a high voltage during electrospray ionization, the emitter includes a working electrode, where redox reactions are observed, such as electro-generation of benzoquinone and metal ions. In contrast, the target plate in laser-induced desorption ionization also acts as a photo-electrode, especially when modified with a mesoporous semiconductor. We illustrate here how these electrochemical reactions can be used for tagging purposes, and for oxidative or reductive dissociation reactions.
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Affiliation(s)
- Hubert Girault
- Laboratoire d'Electrochimie Physique et Analytique, Ecole Polytechnique Fédérale de Lausanne, Station 6, Lausanne, Switzerland.
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Méndez MA, Su B, Girault HH. Voltammetry for surface-active ions at polarisable liquid|liquid interfaces. J Electroanal Chem (Lausanne) 2009. [DOI: 10.1016/j.jelechem.2009.07.013] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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