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Jicsinszky L, Bucciol F, Chaji S, Cravotto G. Mechanochemical Degradation of Biopolymers. Molecules 2023; 28:8031. [PMID: 38138521 PMCID: PMC10745761 DOI: 10.3390/molecules28248031] [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: 11/06/2023] [Revised: 12/03/2023] [Accepted: 12/07/2023] [Indexed: 12/24/2023] Open
Abstract
Mechanochemical treatment of various organic molecules is an emerging technology of green processes in biofuel, fine chemicals, or food production. Many biopolymers are involved in isolating, derivating, or modifying molecules of natural origin. Mechanochemistry provides a powerful tool to achieve these goals, but the unintentional modification of biopolymers by mechanochemical manipulation is not always obvious or even detectable. Although modeling molecular changes caused by mechanical stresses in cavitation and grinding processes is feasible in small model compounds, simulation of extrusion processes primarily relies on phenomenological approaches that allow only tool- and material-specific conclusions. The development of analytical and computational techniques allows for the inline and real-time control of parameters in various mechanochemical processes. Using artificial intelligence to analyze process parameters and product characteristics can significantly improve production optimization. We aim to review the processes and consequences of possible chemical, physicochemical, and structural changes.
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Affiliation(s)
- László Jicsinszky
- Department of Drug Science and Technology, University of Turin, 10125 Turin, Italy; (F.B.); (S.C.)
| | | | | | - Giancarlo Cravotto
- Department of Drug Science and Technology, University of Turin, 10125 Turin, Italy; (F.B.); (S.C.)
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Liu X, Wu Z, Manzoli M, Jicsinszky L, Cavalli R, Battaglia L, Cravotto G. Medium-high frequency sonication dominates spherical-SiO 2 nanoparticle size. Ultrason Sonochem 2022; 90:106181. [PMID: 36182836 PMCID: PMC9526221 DOI: 10.1016/j.ultsonch.2022.106181] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/29/2022] [Revised: 09/22/2022] [Accepted: 09/24/2022] [Indexed: 06/16/2023]
Abstract
Spherical SiO2 nanoparticles (SSNs) have been inventively synthesized using the Stöber method with sonication at medium-high frequencies (80, 120, and 500 kHz), aiming to control SSN size and shorten reaction time. Compared to the conventional method, such sonication allowed the Stöber reaction complete in 20-60 min with a low molar ratio of NH4OH/tetraethyl orthosilicate (0.84). The hydrodynamic diameters of 63-117 nm of SSNs were obtained under sonication with 80, 120, and 500 kHz of ultrasonic frequencies. Moreover, the SSNs obtained were smaller at 120 kHz than at 80 kHz in a multi-frequencies ultrasonic reactor, and the SSN size decreased with increasing ultrasonic power at 20 °C, designating the sonochemical unique character, namely, the SSN-size control is associated with the number of microbubbles originated by sonication. With another 500 kHz ultrasonic bath, the optimal system temperature for producing smaller SSNs was proven to be 20 °C. Also, the SSN size decreased with increasing ultrasonic power. The smallest SSNs (63 nm, hydrodynamic diameter by QELS, or 21 nm by FESEM) were obtained by sonication at 207 W for 20 min at 20 °C. Furthermore, the SSN size increased slightly with increasing sonication time and volume, favoring the scale-up of SSNs preparation. The mechanisms of controlling the SSN size were further discussed by the radical's role and effects of ammonia and ethanol concentration.
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Affiliation(s)
- Xiaolin Liu
- Department of Drug Science and Technology and NIS-Centre for Nanostructured Interfaces and Surfaces, University of Turin, Via Pietro Giuria 9, 10125 Turin, Italy
| | - Zhilin Wu
- Department of Drug Science and Technology and NIS-Centre for Nanostructured Interfaces and Surfaces, University of Turin, Via Pietro Giuria 9, 10125 Turin, Italy.
| | - Maela Manzoli
- Department of Drug Science and Technology and NIS-Centre for Nanostructured Interfaces and Surfaces, University of Turin, Via Pietro Giuria 9, 10125 Turin, Italy
| | - László Jicsinszky
- Department of Drug Science and Technology and NIS-Centre for Nanostructured Interfaces and Surfaces, University of Turin, Via Pietro Giuria 9, 10125 Turin, Italy
| | - Roberta Cavalli
- Department of Drug Science and Technology and NIS-Centre for Nanostructured Interfaces and Surfaces, University of Turin, Via Pietro Giuria 9, 10125 Turin, Italy
| | - Luigi Battaglia
- Department of Drug Science and Technology and NIS-Centre for Nanostructured Interfaces and Surfaces, University of Turin, Via Pietro Giuria 9, 10125 Turin, Italy
| | - Giancarlo Cravotto
- Department of Drug Science and Technology and NIS-Centre for Nanostructured Interfaces and Surfaces, University of Turin, Via Pietro Giuria 9, 10125 Turin, Italy.
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Haimhoffer Á, Vas A, Árvai G, Fenyvesi É, Jicsinszky L, Budai I, Bényei A, Regdon G, Rusznyák Á, Vasvári G, Váradi J, Bácskay I, Vecsernyés M, Fenyvesi F. Investigation of the Drug Carrier Properties of Insoluble Cyclodextrin Polymer Microspheres. Biomolecules 2022; 12:biom12070931. [PMID: 35883488 PMCID: PMC9313285 DOI: 10.3390/biom12070931] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2022] [Revised: 06/18/2022] [Accepted: 06/28/2022] [Indexed: 01/27/2023] Open
Abstract
The investigation of the usability of solid insoluble β-cyclodextrin polymers (βCDP) in micro-sized, controlled drug delivery systems has only recently attracted interest. Our aim was to form complexes with poorly soluble active pharmaceutical ingredients (APIs) with two types of βCDP for drug delivery applications. Solid insoluble cyclodextrin polymer of irregular shape (βCDPIS) and cyclodextrin microbeads (βCDPB) were used in the experiments. Morphology, surface area, size distribution and swelling capacity of carriers were investigated. We created complexes with two APIs, curcumin and estradiol, and applied powder X-ray diffraction, FTIR and thermal analysis (TGA/DSC) to prove the complexation. Finally, the dissolution, biocompatibility and permeation of APIs on Caco-2 cells were investigated. The size of the beads was larger than 100 µm, their shape was spherical and surfaces were smooth; while the βCDPIS particles were around 4 µm with irregular shape and surface. None of the polymers showed any cytotoxic effect on Caco-2 cells. Both carriers were able to extract curcumin and estradiol from aqueous solutions, and the dissolution test showed prolonged estradiol release. Caco-2 permeability tests were in accordance with the complexation abilities and dissolution of the complexes. This study offers useful data for further pharmaceutical applications of insoluble cyclodextrin polymers.
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Affiliation(s)
- Ádám Haimhoffer
- Department of Pharmaceutical Technology, Faculty of Pharmacy, University of Debrecen, Nagyerdei St. 98, H-4032 Debrecen, Hungary; (Á.H.); (A.V.); (G.Á.); (Á.R.); (G.V.); (J.V.); (I.B.); (M.V.)
- Doctoral School of Pharmaceutical Sciences, University of Debrecen, H-4032 Debrecen, Hungary
- Institute of Healthcare Industry, University of Debrecen, Nagyerdei St. 98, H-4032 Debrecen, Hungary
| | - Alexandra Vas
- Department of Pharmaceutical Technology, Faculty of Pharmacy, University of Debrecen, Nagyerdei St. 98, H-4032 Debrecen, Hungary; (Á.H.); (A.V.); (G.Á.); (Á.R.); (G.V.); (J.V.); (I.B.); (M.V.)
| | - Gabriella Árvai
- Department of Pharmaceutical Technology, Faculty of Pharmacy, University of Debrecen, Nagyerdei St. 98, H-4032 Debrecen, Hungary; (Á.H.); (A.V.); (G.Á.); (Á.R.); (G.V.); (J.V.); (I.B.); (M.V.)
| | - Éva Fenyvesi
- Cyclolab Cyclodextrin R & D Laboratory Ltd., Illatos St. 7, H-1097 Budapest, Hungary;
| | - László Jicsinszky
- Department of Drug Science and Technology, University of Turin, Via P. Giuria 9, 10125 Turin, Italy;
| | - István Budai
- Faculty of Engineering, University of Debrecen, Ótemető Street 2-4, H-4028 Debrecen, Hungary;
| | - Attila Bényei
- Department of Physical Chemistry, University of Debrecen, Egyetem Sqr. 1, H-4032 Debrecen, Hungary;
| | - Géza Regdon
- Institute of Pharmaceutical Technology and Regulatory Affairs, University of Szeged, Eötvös u. 6, H-6720 Szeged, Hungary;
| | - Ágnes Rusznyák
- Department of Pharmaceutical Technology, Faculty of Pharmacy, University of Debrecen, Nagyerdei St. 98, H-4032 Debrecen, Hungary; (Á.H.); (A.V.); (G.Á.); (Á.R.); (G.V.); (J.V.); (I.B.); (M.V.)
- Doctoral School of Pharmaceutical Sciences, University of Debrecen, H-4032 Debrecen, Hungary
- Institute of Healthcare Industry, University of Debrecen, Nagyerdei St. 98, H-4032 Debrecen, Hungary
| | - Gábor Vasvári
- Department of Pharmaceutical Technology, Faculty of Pharmacy, University of Debrecen, Nagyerdei St. 98, H-4032 Debrecen, Hungary; (Á.H.); (A.V.); (G.Á.); (Á.R.); (G.V.); (J.V.); (I.B.); (M.V.)
| | - Judit Váradi
- Department of Pharmaceutical Technology, Faculty of Pharmacy, University of Debrecen, Nagyerdei St. 98, H-4032 Debrecen, Hungary; (Á.H.); (A.V.); (G.Á.); (Á.R.); (G.V.); (J.V.); (I.B.); (M.V.)
| | - Ildikó Bácskay
- Department of Pharmaceutical Technology, Faculty of Pharmacy, University of Debrecen, Nagyerdei St. 98, H-4032 Debrecen, Hungary; (Á.H.); (A.V.); (G.Á.); (Á.R.); (G.V.); (J.V.); (I.B.); (M.V.)
- Institute of Healthcare Industry, University of Debrecen, Nagyerdei St. 98, H-4032 Debrecen, Hungary
| | - Miklós Vecsernyés
- Department of Pharmaceutical Technology, Faculty of Pharmacy, University of Debrecen, Nagyerdei St. 98, H-4032 Debrecen, Hungary; (Á.H.); (A.V.); (G.Á.); (Á.R.); (G.V.); (J.V.); (I.B.); (M.V.)
| | - Ferenc Fenyvesi
- Department of Pharmaceutical Technology, Faculty of Pharmacy, University of Debrecen, Nagyerdei St. 98, H-4032 Debrecen, Hungary; (Á.H.); (A.V.); (G.Á.); (Á.R.); (G.V.); (J.V.); (I.B.); (M.V.)
- Correspondence:
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Veselov VV, Nosyrev AE, Jicsinszky L, Alyautdin RN, Cravotto G. Targeted Delivery Methods for Anticancer Drugs. Cancers (Basel) 2022; 14:cancers14030622. [PMID: 35158888 PMCID: PMC8833699 DOI: 10.3390/cancers14030622] [Citation(s) in RCA: 22] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2021] [Revised: 01/21/2022] [Accepted: 01/25/2022] [Indexed: 02/07/2023] Open
Abstract
Simple Summary The current main technological strategies for the delivery of anticancer drugs are discussed herein. This comprehensive review may help researchers design suitable delivery systems. Abstract Several drug-delivery systems have been reported on and often successfully applied in cancer therapy. Cell-targeted delivery can reduce the overall toxicity of cytotoxic drugs and increase their effectiveness and selectivity. Besides traditional liposomal and micellar formulations, various nanocarrier systems have recently become the focus of developmental interest. This review discusses the preparation and targeting techniques as well as the properties of several liposome-, micelle-, solid-lipid nanoparticle-, dendrimer-, gold-, and magnetic-nanoparticle-based delivery systems. Approaches for targeted drug delivery and systems for drug release under a range of stimuli are also discussed.
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Affiliation(s)
- Valery V. Veselov
- Center of Bioanalytical Investigation and Molecular Design, Sechenov First Moscow State Medical University, 8 Trubetskaya ul, 119991 Moscow, Russia; (V.V.V.); (A.E.N.)
| | - Alexander E. Nosyrev
- Center of Bioanalytical Investigation and Molecular Design, Sechenov First Moscow State Medical University, 8 Trubetskaya ul, 119991 Moscow, Russia; (V.V.V.); (A.E.N.)
| | - László Jicsinszky
- Department of Drug Science and Technology, University of Turin, Via P. Giuria 9, 10125 Turin, Italy;
| | - Renad N. Alyautdin
- Department of Pharmacology, Sechenov First Moscow State Medical University, 119991 Moscow, Russia;
| | - Giancarlo Cravotto
- Department of Drug Science and Technology, University of Turin, Via P. Giuria 9, 10125 Turin, Italy;
- World-Class Research Center “Digital Biodesign and Personalized Healthcare”, Sechenov First Moscow State Medical University, 8 Trubetskaya ul, 119991 Moscow, Russia
- Correspondence: ; Tel.: +39-011-670-7183
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Abstract
Cyclodextrin (CD) polymers are covalently linked hollow structures that are a network
of less flexible macrocycles. They can be divided into two main groups: a) soluble
(CDPS); and b) insoluble (CDPIS) polymers. These two types are generally prepared in a
similar reaction, and the CD/reagent ratio determines the final properties of the reaction product.
Changing this ratio of the generally bifunctionalized crosslinking agent and reaction conditions
can lead to CDPS or CDPIS. The classical synthetic way in solution often leads to
partial reagent(s) degradation, which frequently results in poorly reproducible products. At the
same CD/reagent ratio, the reaction in solution yielded soluble CD polymers, whereas the
reaction under mechanochemical conditions produced insoluble CD polymers. Usually, further
derivatization of CDPIS or polymerization of derivatized CDs can be difficult or even
impossible. The reactivity of hydroxyl groups in methylated CDs is limited so that reactions
generally require high-boiling solvents and/or a large excess of reagent. This paper presents an economical, reproducible,
and well-scalable synthetic method for producing some insoluble CD polymers. The physicochemical and
adsorption properties of CDPIS prepared in a planetary ball mill are also compared.
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Affiliation(s)
- László Jicsinszky
- University of Turin, Department of Drug Science and Technology, Torino, Italy, Via P. Giuria 9, 10125 Torino, Italy
| | - Fabio Bucciol
- University of Turin, Department of Drug Science and Technology, Torino, Italy, Via P. Giuria 9, 10125 Torino, Italy
| | - Maela Manzoli
- University of Turin, Department of Drug Science and Technology, Torino, Italy, Via P. Giuria 9, 10125 Torino, Italy
| | - Giancarlo Cravotto
- University of Turin, Department of Drug Science and Technology, Torino, Italy, Via P. Giuria 9, 10125 Torino, Italy
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Abstract
The main antiviral drug-cyclodextrin interactions, changes in physicochemical and physiological properties of the most commonly used virucides are summarized. The potential complexation of antiviral molecules against the SARS-Cov2 also pointed out the lack of detailed information in designing effective and general medicines against viral infections. The principal problem of the current molecules is the 3D structures of the currently active compounds. Improving the solubility or bioavailability of antiviral molecules is possible, however, there is no universal solution, and the complexation experiments dominantly use the already approved cyclodextrin derivatives. This review discusses the basic properties of the different cyclodextrin derivatives, their potential in antiviral formulations, and the prevention and treatment of viral infections. The biologically active new cyclodextrin derivatives are also discussed.
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Affiliation(s)
- László Jicsinszky
- Dept. of Drug Science and Technology, University of Turin, Via Giuria 9, 10125, Torino, Italy
| | - Katia Martina
- Dept. of Drug Science and Technology, University of Turin, Via Giuria 9, 10125, Torino, Italy
| | - Giancarlo Cravotto
- Dept. of Drug Science and Technology, University of Turin, Via Giuria 9, 10125, Torino, Italy
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Adeoye O, Conceição J, Serra PA, Bento da Silva A, Duarte N, Guedes RC, Corvo MC, Aguiar-Ricardo A, Jicsinszky L, Casimiro T, Cabral-Marques H. Cyclodextrin solubilization and complexation of antiretroviral drug lopinavir: In silico prediction; Effects of derivatization, molar ratio and preparation method. Carbohydr Polym 2019; 227:115287. [PMID: 31590843 DOI: 10.1016/j.carbpol.2019.115287] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [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: 07/09/2019] [Revised: 08/12/2019] [Accepted: 09/02/2019] [Indexed: 01/03/2023]
Abstract
Lopinavir (LPV) is currently used in combination with ritonavir for the clinical management of HIV infections due to its limited oral bioavailability. Herein, we report the application of an in silico method to study cyclodextrin (CyD) host-guest molecular interaction with LPV for the rational selection of the best CyD for developing a CyD based LPV delivery system. The predicted CyD, a (2-hydroxy)propyl-gamma derivative with high degree of substitution (HP17-γ-CyD) was synthesized and comparatively evaluated with γ-CyD and the commercially available HP-γ-CyD. All complexes were prepared by supercritical assisted spray drying (SASD) and co-evaporation (CoEva) at molar ratios (1:1 and 1:2); and afterwards fully characterized. Results indicate a higher LPV amorphization and solubilization ability of HP17-γ-CyD. The SASD processing technology also enhanced LPV solubilization and release from complexes. The application of in silico methodologies is a feasible approach for the rational and/or deductive development of CyD drug delivery systems.
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Affiliation(s)
- Oluwatomide Adeoye
- Research Institute for Medicines (iMed.ULisboa), Faculty of Pharmacy, Universidade de Lisboa, Lisbon, Portugal
| | - Jaime Conceição
- Research Institute for Medicines (iMed.ULisboa), Faculty of Pharmacy, Universidade de Lisboa, Lisbon, Portugal; UCIBIO/REQUIMTE, MedTech - Laboratory of Pharmaceutical Technology, Department of Drug Sciences, Faculty of Pharmacy, University of Porto, Oporto, Portugal
| | - Patrícia A Serra
- Research Institute for Medicines (iMed.ULisboa), Faculty of Pharmacy, Universidade de Lisboa, Lisbon, Portugal
| | - Andreia Bento da Silva
- Faculdade de Farmácia da Universidade de Lisboa (FFULisboa), Avenida Prof. Gama Pinto, 1649-003, Lisboa, Portugal
| | - Noélia Duarte
- Research Institute for Medicines (iMed.ULisboa), Faculty of Pharmacy, Universidade de Lisboa, Lisbon, Portugal
| | - Rita C Guedes
- Research Institute for Medicines (iMed.ULisboa), Faculty of Pharmacy, Universidade de Lisboa, Lisbon, Portugal
| | - Marta C Corvo
- i3N|CENIMAT, Department of Materials Science, Faculty of Science and Technology, UNL, 2829-516, Caparica, Portugal
| | - Ana Aguiar-Ricardo
- LAQV-REQUIMTE, Departamento de Química, Faculdade de Ciências e Tecnologia, Universidade NOVA de Lisboa, 2829-516, Caparica, Portugal
| | - László Jicsinszky
- Department of Drug Science and Technology, University of Turin, Via P. Giuria 9, 10125, Turin, Italy
| | - Teresa Casimiro
- LAQV-REQUIMTE, Departamento de Química, Faculdade de Ciências e Tecnologia, Universidade NOVA de Lisboa, 2829-516, Caparica, Portugal
| | - Helena Cabral-Marques
- Research Institute for Medicines (iMed.ULisboa), Faculty of Pharmacy, Universidade de Lisboa, Lisbon, Portugal.
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Jicsinszky L, Calsolaro F, Martina K, Bucciol F, Manzoli M, Cravotto G. Reaction of oxiranes with cyclodextrins under high-energy ball-milling conditions. Beilstein J Org Chem 2019; 15:1448-1459. [PMID: 31354861 PMCID: PMC6632222 DOI: 10.3762/bjoc.15.145] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2019] [Accepted: 06/14/2019] [Indexed: 12/22/2022] Open
Abstract
This work presents a proof of concept for a green cyclodextrin derivatisation method that uses low-boiling epoxide reagents in a high-energy ball mill (HEBM). The simplified preparation and purification of low substitution-degree common (2-hydroxy)propylated β- and γ-cyclodextrins (β/γ-CDs) has been realised. The intelligent use of propylene oxide has also facilitated the more effective synthesis of highly substituted γ-CD. Epichlorohydrin-crosslinked CD-polymers (CDPs) have also been effectively prepared in the ball mill. The unoptimised preparations of soluble and insoluble CDPs displayed very small particle size distributions, while the prepared polymers currently have different complexation properties to those of their classically prepared analogues.
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Affiliation(s)
- László Jicsinszky
- Dipartimento di Scienza e Tecnologia del Farmaco, University of Turin, via P. Giuria 9, 10125 Turin, Italy
| | - Federica Calsolaro
- Dipartimento di Scienza e Tecnologia del Farmaco, University of Turin, via P. Giuria 9, 10125 Turin, Italy
| | - Katia Martina
- Dipartimento di Scienza e Tecnologia del Farmaco, University of Turin, via P. Giuria 9, 10125 Turin, Italy
| | - Fabio Bucciol
- Dipartimento di Scienza e Tecnologia del Farmaco, University of Turin, via P. Giuria 9, 10125 Turin, Italy
| | - Maela Manzoli
- Dipartimento di Scienza e Tecnologia del Farmaco, University of Turin, via P. Giuria 9, 10125 Turin, Italy
| | - Giancarlo Cravotto
- Dipartimento di Scienza e Tecnologia del Farmaco, University of Turin, via P. Giuria 9, 10125 Turin, Italy
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Ge X, Wu Z, Manzoli M, Jicsinszky L, Wu Z, Nosyrev AE, Cravotto G. Adsorptive Recovery of Iopamidol from Aqueous Solution and Parallel Reuse of Activated Carbon: Batch and Flow Study. Ind Eng Chem Res 2019. [DOI: 10.1021/acs.iecr.9b00516] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Xinyu Ge
- Department of Drug Science and Technology and NIS - Centre for Nanostructured Interfaces and Surfaces, University of Turin, Via P. Giuria 9, Turin 10125, Italy
| | - Zhilin Wu
- Department of Drug Science and Technology and NIS - Centre for Nanostructured Interfaces and Surfaces, University of Turin, Via P. Giuria 9, Turin 10125, Italy
- Nanjing Institute of Environmental Sciences of the Ministry of Ecology and Environment of China, Jiangwangmiao Street 8, Nanjing 210042, China
| | - Maela Manzoli
- Department of Drug Science and Technology and NIS - Centre for Nanostructured Interfaces and Surfaces, University of Turin, Via P. Giuria 9, Turin 10125, Italy
| | - László Jicsinszky
- Department of Drug Science and Technology and NIS - Centre for Nanostructured Interfaces and Surfaces, University of Turin, Via P. Giuria 9, Turin 10125, Italy
| | - Zhansheng Wu
- School of Chemistry and Chemical Engineering, Shihezi University, Beisilu Street. 280, Shihezi 832003, China
| | - Alexander E. Nosyrev
- Institute of Translational Medicine and Biotechnology, First Moscow State Medical University (Sechenov), 8 Trubetskayaul, Moscow 109807, Russia
| | - Giancarlo Cravotto
- Department of Drug Science and Technology and NIS - Centre for Nanostructured Interfaces and Surfaces, University of Turin, Via P. Giuria 9, Turin 10125, Italy
- Institute of Translational Medicine and Biotechnology, First Moscow State Medical University (Sechenov), 8 Trubetskayaul, Moscow 109807, Russia
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Argenziano M, Haimhoffer A, Bastiancich C, Jicsinszky L, Caldera F, Trotta F, Scutera S, Alotto D, Fumagalli M, Musso T, Castagnoli C, Cavalli R. In Vitro Enhanced Skin Permeation and Retention of Imiquimod Loaded in β-Cyclodextrin Nanosponge Hydrogel. Pharmaceutics 2019; 11:pharmaceutics11030138. [PMID: 30897794 PMCID: PMC6471382 DOI: 10.3390/pharmaceutics11030138] [Citation(s) in RCA: 39] [Impact Index Per Article: 7.8] [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: 02/15/2019] [Revised: 03/08/2019] [Accepted: 03/13/2019] [Indexed: 11/16/2022] Open
Abstract
Imiquimod (IMQ) is an immune response modifier clinically used for the treatment of various topical diseases. However, its poor aqueous solubility and skin penetration capability make the topical delivery of IMQ a challenging task. This work aims at developing a nanomedicine-based topical formulation, carrying IMQ to control the scarring process for the treatment of aberrant wounds. For this purpose, IMQ was loaded in β-cyclodextrin-based nanosponges and dispersed in a hydrogel suitable for dermal application. The formulation was characterized in vitro and compared with IMQ inclusion complexes, with (2-hydroxy)propyl β-cyclodextrin(HPβCD) and carboxymethyl β-cyclodextrin (CMβCD) showing enhanced penetration properties. The hydrogel containing IMQ-loaded nanosponges could act as a drug reservoir and guarantee the sustained release of IMQ through the skin. A greater inhibitory effect on fibroblast proliferation was observed for IMQ loaded in nanosponges compared to the other formulations.
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Affiliation(s)
- Monica Argenziano
- Department of Drug Science and Technology, University of Turin, via P. Giuria 9, 10125 Turin, Italy.
| | - Adam Haimhoffer
- Department of Pharmaceutical Technology, Faculty of Pharmacy, University of Debrecen, H-4033 Debrecen, Hungary.
| | - Chiara Bastiancich
- Aix-Marseille Univ, CNRS, INP, Inst Neurophysiopathol, 13344 Marseille, France.
| | - László Jicsinszky
- Department of Drug Science and Technology, University of Turin, via P. Giuria 9, 10125 Turin, Italy.
| | - Fabrizio Caldera
- Department of Chemistry, University of Turin, via Giuria 7, 10125 Turin, Italy.
| | - Francesco Trotta
- Department of Chemistry, University of Turin, via Giuria 7, 10125 Turin, Italy.
| | - Sara Scutera
- Dipartimento di Scienze della Sanità Pubblica e Pediatriche, University of Turin, 10126 Turin, Italy.
| | - Daniela Alotto
- Dipartimento di Chirurgia Generale e Specialistiche, Banca della Cute, AOU Città della Salute e della Scienza di Torino, 10126 Turin, Italy.
| | - Mara Fumagalli
- Dipartimento di Chirurgia Generale e Specialistiche, Banca della Cute, AOU Città della Salute e della Scienza di Torino, 10126 Turin, Italy.
| | - Tiziana Musso
- Dipartimento di Scienze della Sanità Pubblica e Pediatriche, University of Turin, 10126 Turin, Italy.
| | - Carlotta Castagnoli
- Dipartimento di Chirurgia Generale e Specialistiche, Banca della Cute, AOU Città della Salute e della Scienza di Torino, 10126 Turin, Italy.
| | - Roberta Cavalli
- Department of Drug Science and Technology, University of Turin, via P. Giuria 9, 10125 Turin, Italy.
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Jicsinszky L, Tuza K, Cravotto G, Porcheddu A, Delogu F, Colacino E. Influence of the milling parameters on the nucleophilic substitution reaction of activated β-cyclodextrins. Beilstein J Org Chem 2017; 13:1893-1899. [PMID: 29062408 PMCID: PMC5629382 DOI: 10.3762/bjoc.13.184] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2017] [Accepted: 08/18/2017] [Indexed: 01/07/2023] Open
Abstract
The present work focuses on the mechanochemical preparation of industrially important β-cyclodextrin (CD) derivatives. Activated CDs have been reacted with nitrogen and sulfur nucleophiles using a planetary mill equipped with stainless steel, zirconia and glass milling tools of different sizes. It is shown that the milling frequency and the number as well as the size of the milling balls have an effect on the nucleophilic reaction.
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Affiliation(s)
- László Jicsinszky
- Dipartimento di Scienza e Tecnologia del Farmaco, University of Turin, via P. Giuria 9, 10125 Turin, Italy
| | - Kata Tuza
- Cyclolab Cyclodextrin R&D Laboratory, Ltd., Illatos út 7, 1192 Budapest, Hungary
| | - Giancarlo Cravotto
- Dipartimento di Scienza e Tecnologia del Farmaco, University of Turin, via P. Giuria 9, 10125 Turin, Italy
| | - Andrea Porcheddu
- Dipartimento di Scienze Chimiche e Geologiche, Università degli Studi di Cagliari, Cittadella Universitaria, SS 554 bivio per Sestu, 09028 Monserrato (Ca), Italy
| | - Francesco Delogu
- Dipartimento di Ingegneria Meccanica, Chimica, e dei Materiali, Università degli Studi di Cagliari, via Marengo 2, 09123 Cagliari, Italy
| | - Evelina Colacino
- Dipartimento di Scienza e Tecnologia del Farmaco, University of Turin, via P. Giuria 9, 10125 Turin, Italy.,Université de Montpellier, Institut des Biomolécules Max Mousseron (IBMM) UMR5247 CNRS-UM-ENSCM, Université de Montpellier, cc1703, Place Eugène Bataillon, 34095 Montpellier Cedex 05, France
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12
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Jicsinszky L, Caporaso M, Calcio Gaudino E, Giovannoli C, Cravotto G. Synthesis of Randomly Substituted Anionic Cyclodextrins in Ball Milling. Molecules 2017; 22:molecules22030485. [PMID: 28335503 PMCID: PMC6155213 DOI: 10.3390/molecules22030485] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [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: 11/18/2016] [Revised: 03/12/2017] [Accepted: 03/16/2017] [Indexed: 12/03/2022] Open
Abstract
A number of influencing factors mean that the random substitution of cyclodextrins (CD) in solution is difficult to reproduce. Reaction assembly in mechanochemistry reduces the number of these factors. However, lack of water can improve the reaction outcomes by minimizing the reagent’s hydrolysis. High-energy ball milling is an efficient, green and simple method for one-step reactions and usually reduces degradation and byproduct formation. Anionic CD derivatives have successfully been synthesized in the solid state, using a planetary ball mill. Comparison with solution reactions, the solvent-free conditions strongly reduced the reagent hydrolysis and resulted in products of higher degree of substitution (DS) with more homogeneous DS distribution. The synthesis of anionic CD derivatives can be effectively performed under mechanochemical activation without significant changes to the substitution pattern but the DS distributions were considerably different from the products of solution syntheses.
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Affiliation(s)
- László Jicsinszky
- Department of Drug Science and Technology, University of Turin, Via P. Giuria 7, 10125 Turin, Italy.
| | - Marina Caporaso
- Department of Drug Science and Technology, University of Turin, Via P. Giuria 7, 10125 Turin, Italy.
| | - Emanuela Calcio Gaudino
- Department of Drug Science and Technology, University of Turin, Via P. Giuria 7, 10125 Turin, Italy.
| | - Cristina Giovannoli
- Department of Chemistry, University of Turin, Via P. Giuria 7, 10125 Turin, Italy.
| | - Giancarlo Cravotto
- Department of Drug Science and Technology, University of Turin, Via P. Giuria 7, 10125 Turin, Italy.
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13
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Agostoni V, Horcajada P, Noiray M, Malanga M, Aykaç A, Jicsinszky L, Vargas-Berenguel A, Semiramoth N, Daoud-Mahammed S, Nicolas V, Martineau C, Taulelle F, Vigneron J, Etcheberry A, Serre C, Gref R. A "green" strategy to construct non-covalent, stable and bioactive coatings on porous MOF nanoparticles. Sci Rep 2015; 5:7925. [PMID: 25603994 PMCID: PMC4300503 DOI: 10.1038/srep07925] [Citation(s) in RCA: 105] [Impact Index Per Article: 11.7] [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: 08/08/2014] [Accepted: 12/15/2014] [Indexed: 12/21/2022] Open
Abstract
Nanoparticles made of metal-organic frameworks (nanoMOFs) attract a growing interest in gas storage, separation, catalysis, sensing and more recently, biomedicine. Achieving stable, versatile coatings on highly porous nanoMOFs without altering their ability to adsorb molecules of interest represents today a major challenge. Here we bring the proof of concept that the outer surface of porous nanoMOFs can be specifically functionalized in a rapid, biofriendly and non-covalent manner, leading to stable and versatile coatings. Cyclodextrin molecules bearing strong iron complexing groups (phosphates) were firmly anchored to the nanoMOFs' surface, within only a few minutes, simply by incubation with aqueous nanoMOF suspensions. The coating procedure did not affect the nanoMOF porosity, crystallinity, adsorption and release abilities. The stable cyclodextrin-based coating was further functionalized with: i) targeting moieties to increase the nanoMOF interaction with specific receptors and ii) poly(ethylene glycol) chains to escape the immune system. These results pave the way towards the design of surface-engineered nanoMOFs of interest for applications in the field of targeted drug delivery, catalysis, separation and sensing.
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Affiliation(s)
- V Agostoni
- Institut Galien, Université Paris-Sud, UMR CNRS 8612, 92290 Chatenay Malabry, France
| | - P Horcajada
- Institut Lavoisier, Université de Versailles St Quentin, UMR CNRS 8180, 45 avenue des Etats-Unis, 78035Versailles, France
| | - M Noiray
- Institut Galien, Université Paris-Sud, UMR CNRS 8612, 92290 Chatenay Malabry, France
| | - M Malanga
- Cyclolab Cyclodextrin R&D Laboratory Ltd., Budapest, Illatos ut 7, H-1097 Hungary
| | - A Aykaç
- Department of Chemistry and Physics, University of Almería, Carretera de Sacramento s/n, 04120 Almería, Spain
| | - L Jicsinszky
- Cyclolab Cyclodextrin R&D Laboratory Ltd., Budapest, Illatos ut 7, H-1097 Hungary
| | - A Vargas-Berenguel
- Department of Chemistry and Physics, University of Almería, Carretera de Sacramento s/n, 04120 Almería, Spain
| | - N Semiramoth
- Institut Galien, Université Paris-Sud, UMR CNRS 8612, 92290 Chatenay Malabry, France
| | - S Daoud-Mahammed
- Institut Galien, Université Paris-Sud, UMR CNRS 8612, 92290 Chatenay Malabry, France
| | - V Nicolas
- Plate-forme d'Imagerie Cellulaire, IFR141-IPSIT, Faculté de Pharmacie, 5 rue Jean-Baptiste Clément, F-92296 Châtenay-Malabry, France
| | - C Martineau
- Institut Lavoisier, Université de Versailles St Quentin, UMR CNRS 8180, 45 avenue des Etats-Unis, 78035Versailles, France
| | - F Taulelle
- Institut Lavoisier, Université de Versailles St Quentin, UMR CNRS 8180, 45 avenue des Etats-Unis, 78035Versailles, France
| | - J Vigneron
- Institut Lavoisier, Université de Versailles St Quentin, UMR CNRS 8180, 45 avenue des Etats-Unis, 78035Versailles, France
| | - A Etcheberry
- Institut Lavoisier, Université de Versailles St Quentin, UMR CNRS 8180, 45 avenue des Etats-Unis, 78035Versailles, France
| | - C Serre
- Institut Lavoisier, Université de Versailles St Quentin, UMR CNRS 8180, 45 avenue des Etats-Unis, 78035Versailles, France
| | - R Gref
- 1] Institut Galien, Université Paris-Sud, UMR CNRS 8612, 92290 Chatenay Malabry, France [2] Institut de Sciences Moléculaires, Université Paris-Sud, UMR CNRS 8214, 91405 Orsay Cedex, France
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14
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Malanga M, Bálint M, Puskás I, Tuza K, Sohajda T, Jicsinszky L, Szente L, Fenyvesi É. Synthetic strategies for the fluorescent labeling of epichlorohydrin-branched cyclodextrin polymers. Beilstein J Org Chem 2014; 10:3007-18. [PMID: 25670971 PMCID: PMC4311710 DOI: 10.3762/bjoc.10.319] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2014] [Accepted: 11/28/2014] [Indexed: 11/23/2022] Open
Abstract
The fluorescent tagging of cyclodextrin derivatives enlarges their spectroscopic properties thus generating chemosensors, biological tools for visualization and sophisticated photoresponsive devices. Cyclodextrin polymers, due to the cooperative interactions, exhibit additional properties compared to their monomeric counterpart. These macromolecules can be prepared either in well water-soluble form or as gels of high swelling. Two versatile synthetic strategies for introducing a fluorescent tag (rhodamine, fluorescein, nitrobenzofuran or coumarin) into the water-soluble epichlorohydrin branched cyclodextrin polymers were worked out and compared. The fluorescent labeling was realized in three steps: 1) building in azido moieties, 2) transforming the azido groups into amino groups and 3) coupling the proper fluorescent compound to the amino groups. The other strategy started by functionalization of the monomer prior to the branching. Either the fluorescent-labeled monomer or the intermediate azido derivative of the monomer was branched. Further tuning of the properties of the polymer was achieved via branching of the methylated cyclodextrin derivative. The key intermediates and the fluorescent final products were characterized by various spectroscopic techniques and capillary electrophoresis. The applied synthetic routes were evaluated based on the molecular weight, cyclodextrin content of the products and the efficiency of labeling.
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Affiliation(s)
- Milo Malanga
- CycloLab Cyclodextrin Research and Development Laboratory Ltd, Illatos 7, Budapest, H-1097 Hungary
| | - Mihály Bálint
- CycloLab Cyclodextrin Research and Development Laboratory Ltd, Illatos 7, Budapest, H-1097 Hungary
| | - István Puskás
- CycloLab Cyclodextrin Research and Development Laboratory Ltd, Illatos 7, Budapest, H-1097 Hungary
| | - Kata Tuza
- CycloLab Cyclodextrin Research and Development Laboratory Ltd, Illatos 7, Budapest, H-1097 Hungary
| | - Tamás Sohajda
- CycloLab Cyclodextrin Research and Development Laboratory Ltd, Illatos 7, Budapest, H-1097 Hungary
| | - László Jicsinszky
- CycloLab Cyclodextrin Research and Development Laboratory Ltd, Illatos 7, Budapest, H-1097 Hungary
| | - Lajos Szente
- CycloLab Cyclodextrin Research and Development Laboratory Ltd, Illatos 7, Budapest, H-1097 Hungary
| | - Éva Fenyvesi
- CycloLab Cyclodextrin Research and Development Laboratory Ltd, Illatos 7, Budapest, H-1097 Hungary
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15
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Tuza K, Jicsinszky L, Sohajda T, Puskás I, Fenyvesi É. Synthesis of modified cyclic and acyclic dextrins and comparison of their complexation ability. Beilstein J Org Chem 2014; 10:2836-43. [PMID: 25550750 PMCID: PMC4273282 DOI: 10.3762/bjoc.10.301] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2014] [Accepted: 11/14/2014] [Indexed: 11/23/2022] Open
Abstract
We compared the complex forming ability of α-, β- and γ-cyclodextrins (α-CD, β-CD and γ-CD) with their open ring analogs. In addition to the native cyclodextrins also modified cyclodextrins and the corresponding maltooligomers, functionalized with neutral 2-hydroxypropyl moieties, were synthesized. A new synthetic route was worked out via bromination, benzylation, deacetylation and debenzylation to obtain the 2-hydroxypropyl maltooligomer counterparts. The complexation properties of non-modified and modified cyclic and acyclic dextrins were studied and compared by photon correlation spectroscopy (PCS) and capillary electrophoresis (CE) using model guest compounds. In some cases cyclodextrins and their open-ring analogs (acyclodextrins) show similar complexation abilities, while with other guests considerably different behavior was observed depending on the molecular dimensions and chemical characteristics of the guests. This was explained by the enhanced flexibility of the non-closed rings. Even the signs of enantiorecognition were observed for the chloropheniramine/hydroxypropyl maltohexaose system. Further studies are planned to help the deeper understanding of the interactions.
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Affiliation(s)
- Kata Tuza
- CycloLab Cyclodextrin R&D Laboratory Ltd, Illatos út 7, Budapest, 1097, Hungary
| | - László Jicsinszky
- CycloLab Cyclodextrin R&D Laboratory Ltd, Illatos út 7, Budapest, 1097, Hungary
- Dipartimento di Scienza e Tecnologia del Farmaco, Universitá di Torino, via P. Giuria 9, Turin, 10125, Italy
| | - Tamás Sohajda
- CycloLab Cyclodextrin R&D Laboratory Ltd, Illatos út 7, Budapest, 1097, Hungary
| | - István Puskás
- CycloLab Cyclodextrin R&D Laboratory Ltd, Illatos út 7, Budapest, 1097, Hungary
| | - Éva Fenyvesi
- CycloLab Cyclodextrin R&D Laboratory Ltd, Illatos út 7, Budapest, 1097, Hungary
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16
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Anand R, Manoli F, Manet I, Donzello MP, Viola E, Malanga M, Jicsinszky L, Fenyvesi E, Monti S. Fluorescent cyclodextrin carriers for a water soluble ZnII pyrazinoporphyrazine octacation with photosensitizer potential. RSC Adv 2014. [DOI: 10.1039/c3ra47034b] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023] Open
Abstract
Novel, negatively charged, fluorescent cyclodextrin oligomers form highly stable complexes with a water soluble, octacationic porphyrazine photosensitizer in dimeric form.
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Affiliation(s)
- R. Anand
- Istituto per la Sintesi Organica e la Fotoreattività
- Consiglio Nazionale delle Ricerche
- I-40129 Bologna, Italy
| | - F. Manoli
- Istituto per la Sintesi Organica e la Fotoreattività
- Consiglio Nazionale delle Ricerche
- I-40129 Bologna, Italy
| | - I. Manet
- Istituto per la Sintesi Organica e la Fotoreattività
- Consiglio Nazionale delle Ricerche
- I-40129 Bologna, Italy
| | - M. P. Donzello
- Dipartimento di Chimica
- Università degli Studi di Roma “La Sapienza”
- I-00185 Roma, Italy
| | - E. Viola
- Dipartimento di Chimica
- Università degli Studi di Roma “La Sapienza”
- I-00185 Roma, Italy
| | - M. Malanga
- CycloLab
- Cyclodextrin R&D Ltd
- H-1097 Budapest, Hungary
| | - L. Jicsinszky
- CycloLab
- Cyclodextrin R&D Ltd
- H-1097 Budapest, Hungary
| | - E. Fenyvesi
- CycloLab
- Cyclodextrin R&D Ltd
- H-1097 Budapest, Hungary
| | - S. Monti
- Istituto per la Sintesi Organica e la Fotoreattività
- Consiglio Nazionale delle Ricerche
- I-40129 Bologna, Italy
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17
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Tárkányi G, Németh K, Mizsei R, Tőke O, Visy J, Simonyi M, Jicsinszky L, Szemán J, Szente L. Structure and stability of warfarin-sodium inclusion complexes formed with permethylated monoamino-β-cyclodextrin. J Pharm Biomed Anal 2013; 72:292-8. [DOI: 10.1016/j.jpba.2012.09.003] [Citation(s) in RCA: 11] [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: 07/16/2012] [Revised: 08/31/2012] [Accepted: 09/02/2012] [Indexed: 11/30/2022]
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18
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Kandoth N, Malanga M, Fraix A, Jicsinszky L, Fenyvesi É, Parisi T, Colao I, Sciortino MT, Sortino S. A Host-Guest Supramolecular Complex with Photoregulated Delivery of Nitric Oxide and Fluorescence Imaging Capacity in Cancer Cells. Chem Asian J 2012; 7:2888-94. [DOI: 10.1002/asia.201200640] [Citation(s) in RCA: 17] [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: 07/16/2012] [Revised: 08/13/2012] [Indexed: 01/08/2023]
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19
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Németh K, Tárkányi G, Varga E, Imre T, Mizsei R, Iványi R, Visy J, Szemán J, Jicsinszky L, Szente L, Simonyi M. Enantiomeric separation of antimalarial drugs by capillary electrophoresis using neutral and negatively charged cyclodextrins. J Pharm Biomed Anal 2011; 54:475-81. [DOI: 10.1016/j.jpba.2010.09.020] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2010] [Revised: 09/01/2010] [Accepted: 09/14/2010] [Indexed: 10/19/2022]
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20
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Németh K, Varga E, Iványi R, Szemán J, Visy J, Jicsinszky L, Szente L, Forró E, Fülöp F, Péter A, Simonyi M. Separation of cis-β-lactam enantiomers by capillary electrophoresis using cyclodextrin derivatives. J Pharm Biomed Anal 2010; 53:382-8. [DOI: 10.1016/j.jpba.2010.04.026] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2010] [Revised: 04/19/2010] [Accepted: 04/20/2010] [Indexed: 11/26/2022]
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21
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Boffa L, Gaudino EC, Martina K, Jicsinszky L, Cravotto G. A new class of cationic cyclodextrins: synthesis and chemico-physical properties. NEW J CHEM 2010. [DOI: 10.1039/c0nj00021c] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [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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22
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Varga G, Tárkányi G, Németh K, Iványi R, Jicsinszky L, Toke O, Visy J, Szente L, Szemán J, Simonyi M. Chiral separation by a monofunctionalized cyclodextrin derivative: from selector to permethyl-beta-cyclodextrin bonded stationary phase. J Pharm Biomed Anal 2009; 51:84-9. [PMID: 19726153 DOI: 10.1016/j.jpba.2009.08.009] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2009] [Revised: 08/05/2009] [Accepted: 08/06/2009] [Indexed: 10/20/2022]
Abstract
Preparation of (6-monoureido-6-monodeoxy) permethylated beta-cyclodextrin bonded chiral stationary phase from permethylated 6-monoamino-6-monodeoxy-beta-cyclodextrin is described. The optimized chiral stationary phase was evaluated by using HPLC separation of racemates of coumarin derivatives. Column characterization was performed by solid-state (13)C, (15)N, (29)Si NMR using cross-polarization at the magic angle spinning. The development process was supported by CE experiments where the complex formation between cyclodextrins and warfarin was investigated. The results demonstrate good enantio-discrimination for coumarin derivatives.
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Affiliation(s)
- Gábor Varga
- ChiroQuest Chiral Technologies Development Ltd., Budapest, Hungary
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23
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Martina K, Trotta F, Robaldo B, Belliardi N, Jicsinszky L, Cravotto G. Efficient regioselective functionalizations of cyclodextrins carried out under microwaves or power ultrasound. Tetrahedron Lett 2007. [DOI: 10.1016/j.tetlet.2007.10.104] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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24
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Nagy M, Szőllősi L, Kéki S, Herczegh P, Batta G, Jicsinszky L, Zsuga M. Synthesis and self-assembly behavior study of α,ω-dicarboxyl-poly(ethylene glycol)–permethyl-6-amino-6-deoxy-β-cyclodextrin-monoamide: A new β-cyclodextrin conjugate. ACTA ACUST UNITED AC 2007. [DOI: 10.1002/pola.22259] [Citation(s) in RCA: 5] [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: 11/11/2022]
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25
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Iványi R, Jicsinszky L, Juvancz Z, Roos N, Otta K, Szejtli J. Influence of (hydroxy)alkylamino substituents on enantioseparation ability of single-isomer amino-β-cyclodextrin derivatives in chiral capillary electrophoresis. Electrophoresis 2004; 25:2675-86. [PMID: 15351998 DOI: 10.1002/elps.200406030] [Citation(s) in RCA: 42] [Impact Index Per Article: 2.1] [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: 11/10/2022]
Abstract
A family of single-isomer amino-beta-cyclodextrin (amino-beta-CD) derivatives containing an amino or (hydroxy)alkylamino group in one of the primary positions has been synthesized. The steric effect and hydrogen bond forming ability of the different substituents on enantioseparation of acidic enantiomers has been studied by capillary electrophoresis (CE). Three enantiomeric model compounds (mandelic acid, cis-permethrinic acid, and cis-deltamethrinic acid) having significantly different apparent complex stability constants with beta-CD were applied in the experiments. Dependence of separation selectivity, resolution as well as mobility difference on chiral selector concentration (0.1-20 mM, pH 6.0) was investigated. Each amino-beta-CD showed higher enantioselectivity than the native beta-CD. One hydroxyalkyl group attached to the primary amino N-atom significantly increased both the enantioselectivity and the resolution compared to the primary amino-beta-CD, while two hydroxyalkyl moieties decreased them due to the predominance of steric hindrance. The value of the apparent complex stability constants obtained suited well the mobility difference model (by Wren). On the other hand, the optimum selector concentrations calculated according to the model were slightly lower than the experienced concentrations giving the maximum enantioresolution of enantiomers.
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Affiliation(s)
- Róbert Iványi
- Cyclolab Cyclodextrin R & D. Laboratory Ltd., Budapest, Hungary.
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26
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Abstract
Enantiomers and diastereomers of chrysanthemic, permethrinic, and deltamethrinic pyrethroic acids were separated from each other, using positively ionizable permethyl monoamino beta-cyclodextrin (PMMAbetaCD). The highest chiral resolution value was 20.0. The optimum conditions of separation were found to be 16 mM PMMAbetaCD concentration and pH 6.5, where analytes and selector were in oppositely ionized states. Selectivity of PMMAbetaCD proved to be the best among the cyclodextrin derivatives studied.
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Affiliation(s)
- R Iványi
- Cyclolab R & D Ltd, Budapest, Hungary.
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27
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28
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Juvancz Z, Markides KE, Jicsinszky L, Iványi R. Chiral selective separation of tocainide by capillary electrophoresis using various cyclodextrin derivatives. ACTA ACUST UNITED AC 2001. [DOI: 10.1002/mcs.1022] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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29
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Abstract
Enantiomers of disopyramide display different biological actions, and therefore chiral selective analysis is necessary. Fifteen different cyclodextrins (CDs) and CD derivatives were tested as capillary electrophoresis (CE) additives for the chiral separation of disopyramide. Eleven types of CDs showed chiral recognition features and four types had a baseline or close to baseline separation. The best resolution (Rs = 3.0) was with 15 mM carboxymethylated beta-CD (pH 4.9). A sharp decrease in the selectivity of gamma-phosphate (gamma-PhoCD) was observed in the pH range of 2-3, indicating a structural change of gamma-PhoCD. The enantiomers of disopyramide were separated in its ionized as well as neutral forms using acidic substituted CDs. The results show that the size of the CD cavity can not be used as a guide to estimate chiral separations, suggesting a more complex separation mechanism of these CDs towards disopyramide.
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Affiliation(s)
- Z Juvancz
- VITUKI Plc., Institute for Water Pollution Control, Budapest, Hungary
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30
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31
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