51
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Guzzinati R, Sarti E, Catani M, Costa V, Pagnoni A, Martucci A, Rodeghero E, Capitani D, Pietrantonio M, Cavazzini A, Pasti L. Formation of Supramolecular Clusters at the Interface of Zeolite X Following the Adsorption of Rare-Earth Cations and Their Impact on the Macroscopic Properties of the Zeolite. Chemphyschem 2018; 19:2208-2217. [DOI: 10.1002/cphc.201800333] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2018] [Indexed: 01/03/2023]
Affiliation(s)
- Roberta Guzzinati
- University of Ferrara, Department of Chemistry and Pharmaceutical Sciences; Via L. Borsari, 46 44121 Ferrara Italy
- Italian National Agency for New Technologies, Energy and Suitable Economic Development (ENEA), R. C. Bologna; Via Martiri di Monte Sole, 4 40129 Bologna Italy
| | - Elena Sarti
- University of Ferrara, Department of Chemistry and Pharmaceutical Sciences; Via L. Borsari, 46 44121 Ferrara Italy
| | - Martina Catani
- University of Ferrara, Department of Chemistry and Pharmaceutical Sciences; Via L. Borsari, 46 44121 Ferrara Italy
| | - Valentina Costa
- University of Ferrara, Department of Chemistry and Pharmaceutical Sciences; Via L. Borsari, 46 44121 Ferrara Italy
| | - Antonella Pagnoni
- University of Ferrara, Department of Chemistry and Pharmaceutical Sciences; Via L. Borsari, 46 44121 Ferrara Italy
| | - Annalisa Martucci
- University of Ferrara, Department of Physics and Earth Sciences; Via Saragat, 1 44121 Ferrara Italy
| | - Elisa Rodeghero
- University of Ferrara, Department of Physics and Earth Sciences; Via Saragat, 1 44121 Ferrara Italy
| | - Donatella Capitani
- National Research Centre; Methodological Chemistry Institute, CNR-IMC, Laboratory “Annalaura Segre”; Via Salaria km 29, 300 00015 Monterotondo (RM) Italy
| | - Massimiliana Pietrantonio
- Italian National Agency for New Technology, Energy and Suitable Economic Development (ENEA), R. C. Casaccia; Via Anguillarese, 301, S. Maria di Galeria Roma Italy
| | - Alberto Cavazzini
- University of Ferrara, Department of Chemistry and Pharmaceutical Sciences; Via L. Borsari, 46 44121 Ferrara Italy
| | - Luisa Pasti
- University of Ferrara, Department of Chemistry and Pharmaceutical Sciences; Via L. Borsari, 46 44121 Ferrara Italy
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52
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Mazzoccanti G, Ismail OH, D'Acquarica I, Villani C, Manzo C, Wilcox M, Cavazzini A, Gasparrini F. Cannabis through the looking glass: chemo- and enantio-selective separation of phytocannabinoids by enantioselective ultra high performance supercritical fluid chromatography. Chem Commun (Camb) 2018; 53:12262-12265. [PMID: 29072720 DOI: 10.1039/c7cc06999e] [Citation(s) in RCA: 43] [Impact Index Per Article: 7.2] [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
By using the Inverted Chirality Columns Approach (ICCA) we have developed an enantioselective UHPSFC method to determine the enantiomeric excess (ee) of (-)-Δ9-THC in medicinal marijuana (Bedrocan®). The ee was high (99.73%), but the concentration of the (+)-enantiomer (0.135%) was not negligible, and it is worth a systematic evaluation of bioactivity.
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Affiliation(s)
- G Mazzoccanti
- Dipartimento di Chimica e Tecnologie del Farmaco, Sapienza Università di Roma, p.le A. Moro 5, 00185 Roma, Italy.
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53
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Catani M, Felletti S, Ismail OH, Gasparrini F, Pasti L, Marchetti N, De Luca C, Costa V, Cavazzini A. New frontiers and cutting edge applications in ultra high performance liquid chromatography through latest generation superficially porous particles with particular emphasis to the field of chiral separations. Anal Bioanal Chem 2018; 410:2457-2465. [DOI: 10.1007/s00216-017-0842-4] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2017] [Revised: 12/05/2017] [Accepted: 12/15/2017] [Indexed: 11/28/2022]
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54
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Fantinati A, Bianco S, Cristofori V, Cavazzini A, Catani M, Zanirato V, Pacifico S, Rimondi E, Milani D, Voltan R, Secchiero P, Trapella C. Expeditious Synthesis and Biological Characterization of Enantio-Enriched (-)-Nutlin-3. ChemistrySelect 2017. [DOI: 10.1002/slct.201701059] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Anna Fantinati
- Department of Chemical and Pharmaceutical Sciences and LTTA center; University of Ferrara; Via Fossato di Mortara,17 I-44121 Ferrara Italy
| | - Sara Bianco
- Department of Chemical and Pharmaceutical Sciences and LTTA center; University of Ferrara; Via Fossato di Mortara,17 I-44121 Ferrara Italy
| | - Virginia Cristofori
- Department of Chemical and Pharmaceutical Sciences and LTTA center; University of Ferrara; Via Fossato di Mortara,17 I-44121 Ferrara Italy
| | - Alberto Cavazzini
- Department of Chemical and Pharmaceutical Sciences and LTTA center; University of Ferrara; Via Fossato di Mortara,17 I-44121 Ferrara Italy
| | - Martina Catani
- Department of Chemical and Pharmaceutical Sciences and LTTA center; University of Ferrara; Via Fossato di Mortara,17 I-44121 Ferrara Italy
| | - Vinicio Zanirato
- Department of Chemical and Pharmaceutical Sciences and LTTA center; University of Ferrara; Via Fossato di Mortara,17 I-44121 Ferrara Italy
| | - Salvatore Pacifico
- Department of Chemical and Pharmaceutical Sciences and LTTA center; University of Ferrara; Via Fossato di Mortara,17 I-44121 Ferrara Italy
| | - Erika Rimondi
- Department of Morphology, Surgery, Experimental Medicine and LTTA center; University of Ferrara; I-44121 Ferrara Italy
| | - Daniela Milani
- Department of Morphology, Surgery, Experimental Medicine and LTTA center; University of Ferrara; I-44121 Ferrara Italy
| | - Rebecca Voltan
- Department of Morphology, Surgery, Experimental Medicine and LTTA center; University of Ferrara; I-44121 Ferrara Italy
| | - Paola Secchiero
- Department of Morphology, Surgery, Experimental Medicine and LTTA center; University of Ferrara; I-44121 Ferrara Italy
| | - Claudio Trapella
- Department of Chemical and Pharmaceutical Sciences and LTTA center; University of Ferrara; Via Fossato di Mortara,17 I-44121 Ferrara Italy
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55
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Ismail OH, Antonelli M, Ciogli A, Villani C, Cavazzini A, Catani M, Felletti S, Bell DS, Gasparrini F. Future perspectives in high efficient and ultrafast chiral liquid chromatography through zwitterionic teicoplanin-based 2-μm superficially porous particles. J Chromatogr A 2017; 1520:91-102. [PMID: 28911942 DOI: 10.1016/j.chroma.2017.09.008] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [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: 07/21/2017] [Revised: 09/01/2017] [Accepted: 09/04/2017] [Indexed: 10/18/2022]
Abstract
With the aim of pushing forward the limits of high efficient and ultrafast chiral liquid chromatography, a new Chiral Stationary Phase (CSP) has been prepared by covalently bonding the teicoplanin selector on 2.0μm Superficially Porous Particles (SPPs). An already validated bonding protocol, which permits to achieve teicoplanin-based CSPs exhibiting zwitterionic behaviour, has been employed to prepare not only the 2.0μm version of the CSP but also two other analogous CSPs based, respectively, on 2.7μm SPPs and 1.9μm Fully Porous Particles (FPPs). The kinetic performance of these CSPs has been compared through the analysis of both van Deemter curves and kinetic plots by employing in-house packed columns of 4.6mm internal diameter and different lengths (20, 50 and 100mm). In particular on the columns packed with 2.0μm SPPs, extremely large efficiencies were observed for both achiral (>310,000 theoretical plates/meter, N/m; hr: 1.61) and chiral compounds (>290,000 N/m; hr: 1.72) in HILIC conditions. Thanks to their efficiency and enantioselectivity, these CSPs were successfully employed in ultrafast chiral separations. As an example, the enantiomers of haloxyfop were baseline resolved in about 3s, with a resolution higher than 2.0, (flow rate: 8mL/min) on a 2cm long column packed with the 2.0μm chiral SPPs.
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Affiliation(s)
- Omar H Ismail
- Dipartimento di Chimica e Tecnologie del Farmaco, "Sapienza" Università di Roma, P. le Aldo Moro 5, 00185 Roma, Italy.
| | - Michela Antonelli
- Dipartimento di Chimica e Tecnologie del Farmaco, "Sapienza" Università di Roma, P. le Aldo Moro 5, 00185 Roma, Italy
| | - Alessia Ciogli
- Dipartimento di Chimica e Tecnologie del Farmaco, "Sapienza" Università di Roma, P. le Aldo Moro 5, 00185 Roma, Italy
| | - Claudio Villani
- Dipartimento di Chimica e Tecnologie del Farmaco, "Sapienza" Università di Roma, P. le Aldo Moro 5, 00185 Roma, Italy
| | - Alberto Cavazzini
- Dipartimento di Scienze Chimiche e Farmaceutiche, Università di Ferrara, via L. Borsari 46, 44121 Ferrara, Italy
| | - Martina Catani
- Dipartimento di Scienze Chimiche e Farmaceutiche, Università di Ferrara, via L. Borsari 46, 44121 Ferrara, Italy
| | - Simona Felletti
- Dipartimento di Scienze Chimiche e Farmaceutiche, Università di Ferrara, via L. Borsari 46, 44121 Ferrara, Italy
| | - David S Bell
- MilliporeSigma/Supelco, 595 North Harrison Road, Bellefonte, PA 16823, USA
| | - Francesco Gasparrini
- Dipartimento di Chimica e Tecnologie del Farmaco, "Sapienza" Università di Roma, P. le Aldo Moro 5, 00185 Roma, Italy.
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56
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Capriotti AL, Cavaliere C, Cavazzini A, Gasparrini F, Pierri G, Piovesana S, Laganà A. A multidimensional liquid chromatography–tandem mass spectrometry platform to improve protein identification in high-throughput shotgun proteomics. J Chromatogr A 2017; 1498:176-182. [DOI: 10.1016/j.chroma.2017.03.032] [Citation(s) in RCA: 11] [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: 08/31/2016] [Revised: 01/20/2017] [Accepted: 03/17/2017] [Indexed: 01/13/2023]
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Magni S, Parolini M, Della Torre C, de Oliveira LF, Catani M, Guzzinati R, Cavazzini A, Binelli A. Multi-biomarker investigation to assess toxicity induced by two antidepressants on Dreissena polymorpha. Sci Total Environ 2017; 578:452-459. [PMID: 27839760 DOI: 10.1016/j.scitotenv.2016.10.208] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/16/2016] [Revised: 10/26/2016] [Accepted: 10/28/2016] [Indexed: 06/06/2023]
Abstract
Antidepressants are one of the main pharmaceutical classes detected in the aquatic environment. Nevertheless, there is a dearth of information regarding their potential adverse effects on non-target organisms. Thus, the aim of this study was the evaluation of sub-lethal effects on the freshwater mussel Dreissena polymorpha of two antidepressants commonly found in the aquatic environment, namely Fluoxetine (FLX) and Citalopram (CT). D. polymorpha specimens were exposed to FLX and CT alone and to their mixture (MIX) at the environmental concentration of 500ng/L for 14days. We evaluated the sub-lethal effects in the mussel soft tissues by means of a biomarker suite: the activity of antioxidant enzymes superoxide dismutase (SOD), catalase (CAT) and glutathione peroxidase (GPx) and the activity of the phase II detoxifying enzyme glutathione-S-transferase (GST). The oxidative damage was evaluated by lipid peroxidation (LPO) and protein carbonylation (PCC), while genetic damage was tested on D. polymorpha hemocytes by Single Cell Gel Electrophoresis (SCGE) assay, DNA diffusion assay and micronucleus test (MN test). Finally, the functionality of the ABC transporter P-glycoprotein (P-gp) was measured in D. polymorpha gills. Our results highlight that CT, MIX and to a lesser extent FLX, caused a significant alteration of the oxidative status of bivalves, accompanied by a significant reduction of P-gp efflux activity. However, only FLX induced a slight, but significant, increase in apoptotic and necrotic cell frequencies. Considering the variability in biomarker response and to perform a toxicity comparison of tested molecules, we integrated each endpoint into the Biomarker Response Index (BRI). The data integration showed that 500ng/L of FLX, CT and their MIX have the same toxicity on bivalves.
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Affiliation(s)
- Stefano Magni
- Department of Biosciences, University of Milan, Via Celoria 26, 20133 Milan, Italy.
| | - Marco Parolini
- Department of Biosciences, University of Milan, Via Celoria 26, 20133 Milan, Italy
| | - Camilla Della Torre
- Department of Biosciences, University of Milan, Via Celoria 26, 20133 Milan, Italy
| | | | - Martina Catani
- Department of Chemical and Pharmaceutical Sciences, University of Ferrara, Via L. Borsari 46, 44121 Ferrara, Italy
| | - Roberta Guzzinati
- Department of Chemical and Pharmaceutical Sciences, University of Ferrara, Via L. Borsari 46, 44121 Ferrara, Italy; ENEA SSPT-USER-R4R, Via Martiri Monte Sole 4, 40129 Bologna, Italy
| | - Alberto Cavazzini
- Department of Chemical and Pharmaceutical Sciences, University of Ferrara, Via L. Borsari 46, 44121 Ferrara, Italy
| | - Andrea Binelli
- Department of Biosciences, University of Milan, Via Celoria 26, 20133 Milan, Italy.
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58
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Catani M, Ismail OH, Gasparrini F, Antonelli M, Pasti L, Marchetti N, Felletti S, Cavazzini A. Recent advancements and future directions of superficially porous chiral stationary phases for ultrafast high-performance enantioseparations. Analyst 2017; 142:555-566. [DOI: 10.1039/c6an02530g] [Citation(s) in RCA: 53] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
This review focuses on the use of superficially porous particles (SPPs) as chiral stationary phases for ultra-high performance liquid enantioseparations.
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Affiliation(s)
- Martina Catani
- Dept. of Chemistry and Pharmaceutical Sciences
- University of Ferrara
- 44121 Ferrara
- Italy
| | - Omar H. Ismail
- Department of Drug Chemistry and Technology
- “Sapienza” Università di Roma
- 00185 Roma
- Italy
| | - Francesco Gasparrini
- Department of Drug Chemistry and Technology
- “Sapienza” Università di Roma
- 00185 Roma
- Italy
| | - Michela Antonelli
- Department of Drug Chemistry and Technology
- “Sapienza” Università di Roma
- 00185 Roma
- Italy
| | - Luisa Pasti
- Dept. of Chemistry and Pharmaceutical Sciences
- University of Ferrara
- 44121 Ferrara
- Italy
| | - Nicola Marchetti
- Dept. of Chemistry and Pharmaceutical Sciences
- University of Ferrara
- 44121 Ferrara
- Italy
| | - Simona Felletti
- Dept. of Chemistry and Pharmaceutical Sciences
- University of Ferrara
- 44121 Ferrara
- Italy
| | - Alberto Cavazzini
- Dept. of Chemistry and Pharmaceutical Sciences
- University of Ferrara
- 44121 Ferrara
- Italy
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59
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Asnin LD, Cavazzini A, Marchetti N. Solute-Stationary Phase Interaction in Chiral Chromatography. Adv Chromatogr 2017; 53:1-73. [PMID: 29461691] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
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60
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Feriotto G, Calza R, Bergamini CM, Griffin M, Wang Z, Beninati S, Ferretti V, Marzola E, Guerrini R, Pagnoni A, Cavazzini A, Casciano F, Mischiati C. Involvement of cell surface TG2 in the aggregation of K562 cells triggered by gluten. Amino Acids 2016; 49:551-565. [PMID: 27699491 DOI: 10.1007/s00726-016-2339-4] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2016] [Accepted: 09/26/2016] [Indexed: 12/16/2022]
Abstract
Gluten-induced aggregation of K562 cells represents an in vitro model reproducing the early steps occurring in the small bowel of celiac patients exposed to gliadin. Despite the clear involvement of TG2 in the activation of the antigen-presenting cells, it is not yet clear in which compartment it occurs. Herein we study the calcium-dependent aggregation of these cells, using either cell-permeable or cell-impermeable TG2 inhibitors. Gluten induces efficient aggregation when calcium is absent in the extracellular environment, while TG2 inhibitors do not restore the full aggregating potential of gluten in the presence of calcium. These findings suggest that TG2 activity is not essential in the cellular aggregation mechanism. We demonstrate that gluten contacts the cells and provokes their aggregation through a mechanism involving the A-gliadin peptide 31-43. This peptide also activates the cell surface associated extracellular TG2 in the absence of calcium. Using a bioinformatics approach, we identify the possible docking sites of this peptide on the open and closed TG2 structures. Peptide docks with the closed TG2 structure near to the GTP/GDP site, by establishing molecular interactions with the same amino acids involved in stabilization of GTP binding. We suggest that it may occur through the displacement of GTP, switching the TG2 structure from the closed to the active open conformation. Furthermore, docking analysis shows peptide binding with the β-sandwich domain of the closed TG2 structure, suggesting that this region could be responsible for the different aggregating effects of gluten shown in the presence or absence of calcium. We deduce from these data a possible mechanism of action by which gluten makes contact with the cell surface, which could have possible implications in the celiac disease onset.
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Affiliation(s)
- G Feriotto
- Department of Morphology, Surgery and Experimental Medicine, School of Medicine, University of Ferrara, Ferrara, Italy
| | - R Calza
- Department of Biomedical Sciences and Surgical Specialties, School of Medicine, University of Ferrara, Via Luigi Borsari 46, 44121, Ferrara, Italy
| | - C M Bergamini
- Department of Biomedical Sciences and Surgical Specialties, School of Medicine, University of Ferrara, Via Luigi Borsari 46, 44121, Ferrara, Italy
| | - M Griffin
- School of Life and Health Sciences, Aston University, Aston Triangle, Birmingham, UK
| | - Z Wang
- School of Life and Health Sciences, Aston University, Aston Triangle, Birmingham, UK
| | - S Beninati
- Department of Biology, University "Tor Vergata", Rome, Italy
| | - V Ferretti
- Department of Chemical and Pharmaceutical Sciences, University of Ferrara, Ferrara, Italy
| | - E Marzola
- Department of Chemical and Pharmaceutical Sciences, University of Ferrara, Ferrara, Italy
| | - R Guerrini
- Department of Chemical and Pharmaceutical Sciences, University of Ferrara, Ferrara, Italy
| | - A Pagnoni
- Department of Chemical and Pharmaceutical Sciences, University of Ferrara, Ferrara, Italy
| | - A Cavazzini
- Department of Chemical and Pharmaceutical Sciences, University of Ferrara, Ferrara, Italy
| | - F Casciano
- Department of Morphology, Surgery and Experimental Medicine, School of Medicine, University of Ferrara, Ferrara, Italy.,LTTA Centre, University of Ferrara, Ferrara, Italy
| | - C Mischiati
- Department of Biomedical Sciences and Surgical Specialties, School of Medicine, University of Ferrara, Via Luigi Borsari 46, 44121, Ferrara, Italy.
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61
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Ismail OH, Pasti L, Ciogli A, Villani C, Kocergin J, Anderson S, Gasparrini F, Cavazzini A, Catani M. Pirkle-type chiral stationary phase on core–shell and fully porous particles: Are superficially porous particles always the better choice toward ultrafast high-performance enantioseparations? J Chromatogr A 2016; 1466:96-104. [DOI: 10.1016/j.chroma.2016.09.001] [Citation(s) in RCA: 59] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2016] [Revised: 08/31/2016] [Accepted: 09/01/2016] [Indexed: 01/22/2023]
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Deridder S, Catani M, Cavazzini A, Desmet G. A theoretical study on the advantage of core-shell particles with radially-oriented mesopores. J Chromatogr A 2016; 1456:137-44. [DOI: 10.1016/j.chroma.2016.05.062] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2016] [Revised: 05/17/2016] [Accepted: 05/19/2016] [Indexed: 10/21/2022]
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63
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Pasti L, Marchetti N, Guzzinati R, Catani M, Bosi V, Dondi F, Sepsey A, Felinger A, Cavazzini A. Microscopic models of liquid chromatography: From ensemble-averaged information to resolution of fundamental viewpoint at single-molecule level. Trends Analyt Chem 2016. [DOI: 10.1016/j.trac.2015.08.007] [Citation(s) in RCA: 7] [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: 11/26/2022]
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64
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Catani M, Ismail OH, Cavazzini A, Ciogli A, Villani C, Pasti L, Bergantin C, Cabooter D, Desmet G, Gasparrini F, Bell DS. Rationale behind the optimum efficiency of columns packed with new 1.9μm fully porous particles of narrow particle size distribution. J Chromatogr A 2016; 1454:78-85. [DOI: 10.1016/j.chroma.2016.05.037] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2016] [Revised: 05/07/2016] [Accepted: 05/10/2016] [Indexed: 12/12/2022]
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65
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Cavazzini A. Introduction to “Numerical determination of the competitive isotherm of enantiomers” by A. Felinger, A. Cavazzini, G. Guiochon [J. Chromatogr. A 986 (2003) 207–225]. J Chromatogr A 2016; 1446:6-7. [DOI: 10.1016/j.chroma.2016.03.022] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2015] [Revised: 03/01/2016] [Accepted: 03/09/2016] [Indexed: 11/30/2022]
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66
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Greco R, Caciolli L, Zaghi A, Pandoli O, Bortolini O, Cavazzini A, De Risi C, Massi A. A monolithic 5-(pyrrolidin-2-yl)tetrazole flow microreactor for the asymmetric aldol reaction in water–ethanol solvent. REACT CHEM ENG 2016. [DOI: 10.1039/c5re00017c] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
An organocatalytic polystyrene monolithic column produces chiral β-hydroxyketones under benign, continuous-flow conditions with high long-term stability.
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Affiliation(s)
- Roberto Greco
- Dipartimento di Scienze Chimiche e Farmaceutiche
- Università di Ferrara
- I-44121 Ferrara
- Italy
| | - Lorenzo Caciolli
- Dipartimento di Scienze Chimiche e Farmaceutiche
- Università di Ferrara
- I-44121 Ferrara
- Italy
| | - Anna Zaghi
- Dipartimento di Scienze Chimiche e Farmaceutiche
- Università di Ferrara
- I-44121 Ferrara
- Italy
| | - Omar Pandoli
- Departamento de Química
- Pontificia Universidade Católica – PUC-Rio
- Brazil
| | - Olga Bortolini
- Dipartimento di Scienze Chimiche e Farmaceutiche
- Università di Ferrara
- I-44121 Ferrara
- Italy
| | - Alberto Cavazzini
- Dipartimento di Scienze Chimiche e Farmaceutiche
- Università di Ferrara
- I-44121 Ferrara
- Italy
| | - Carmela De Risi
- Dipartimento di Scienze Chimiche e Farmaceutiche
- Università di Ferrara
- I-44121 Ferrara
- Italy
| | - Alessandro Massi
- Dipartimento di Scienze Chimiche e Farmaceutiche
- Università di Ferrara
- I-44121 Ferrara
- Italy
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67
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Pasti L, Rodeghero E, Sarti E, Bosi V, Cavazzini A, Bagatin R, Martucci A. Competitive adsorption of VOCs from binary aqueous mixtures on zeolite ZSM-5. RSC Adv 2016. [DOI: 10.1039/c6ra08872d] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
Adsorption equilibria of methyl tert-butyl ether (MTBE)/toluene (TOL), and 1,2-dichloroethane (DCE)/MTBE binary mixtures in aqueous solution on ZSM-5 were measured over a wide range of concentrations.
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Affiliation(s)
- L. Pasti
- Department of Chemistry and Pharmaceutical Sciences
- University of Ferrara
- I-44123 Ferrara (FE)
- Italy
| | - E. Rodeghero
- Department of Physics and Earth Sciences
- University of Ferrara
- I-44123 Ferrara (FE)
- Italy
| | - E. Sarti
- Department of Chemistry and Pharmaceutical Sciences
- University of Ferrara
- I-44123 Ferrara (FE)
- Italy
| | - V. Bosi
- Department of Chemistry and Pharmaceutical Sciences
- University of Ferrara
- I-44123 Ferrara (FE)
- Italy
| | - A. Cavazzini
- Department of Chemistry and Pharmaceutical Sciences
- University of Ferrara
- I-44123 Ferrara (FE)
- Italy
| | - R. Bagatin
- Research Center for Non-Conventional Energy – Istituto Eni Donegani Environmental Technologies
- San Donato Milanese (MI)
- Italy
| | - A. Martucci
- Department of Physics and Earth Sciences
- University of Ferrara
- I-44123 Ferrara (FE)
- Italy
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68
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Ismail OH, Ciogli A, Villani C, De Martino M, Pierini M, Cavazzini A, Bell DS, Gasparrini F. Ultra-fast high-efficiency enantioseparations by means of a teicoplanin-based chiral stationary phase made on sub-2 μm totally porous silica particles of narrow size distribution. J Chromatogr A 2015; 1427:55-68. [PMID: 26687167 DOI: 10.1016/j.chroma.2015.11.071] [Citation(s) in RCA: 64] [Impact Index Per Article: 7.1] [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: 09/11/2015] [Revised: 11/20/2015] [Accepted: 11/23/2015] [Indexed: 11/26/2022]
Abstract
A new ultra-high performance teicoplanin-based stationary phase was prepared starting from sub-2 μm totally porous silica particles of narrow size distribution. Columns of different lengths were packed at high pressure and a deep and systematic evaluation of kinetic performance, in terms of van Deemter analysis, was performed under different elution conditions (HILIC, POM, RP and NP) by using both achiral and chiral probes. For the achiral probes, the efficiency of the columns at the minimum of the van Deemter curves were very high leading to some 278,000, 270,000, 262,000 and 232,000 plates/m in hydrophilic interaction liquid chromatography (HILIC), polar organic mode (POM), normal phase (NP) and reversed phase (RP) respectively. The lowest plate height, Hmin=3.59 μm (h(/)=1.89), was obtained under HILIC conditions at a flow rate of 1.4 mL/min. Efficiency as high as 200,000-250,000 plates/m (at the optimum flow rate) was obtained in the separation of the enantiomers of chiral probes under HILIC/POM conditions. N-protected amino acids, α-aryloxy acids, herbicides, anti-inflammatory agents were baseline separated on short (2-cm) and ultra-short (1-cm) columns, with analysis time in the order of 1 min. The enantiomers of N-BOC-d,l-methionine were successfully baseline separated in only 11s in HILIC mode. Several examples of fast and efficient resolutions in sub/supercritical fluid chromatography were also obtained for a range of chiral carboxylic acids.
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Affiliation(s)
- Omar H Ismail
- Dipartimento di Chimica e Tecnologie del Farmaco, Sapienza Università di Roma, P.le Aldo Moro 5, 00185 Roma, Italy
| | - Alessia Ciogli
- Dipartimento di Chimica e Tecnologie del Farmaco, Sapienza Università di Roma, P.le Aldo Moro 5, 00185 Roma, Italy
| | - Claudio Villani
- Dipartimento di Chimica e Tecnologie del Farmaco, Sapienza Università di Roma, P.le Aldo Moro 5, 00185 Roma, Italy
| | - Michela De Martino
- Dipartimento di Chimica e Tecnologie del Farmaco, Sapienza Università di Roma, P.le Aldo Moro 5, 00185 Roma, Italy
| | - Marco Pierini
- Dipartimento di Chimica e Tecnologie del Farmaco, Sapienza Università di Roma, P.le Aldo Moro 5, 00185 Roma, Italy
| | - Alberto Cavazzini
- Dipartimento di Scienze Chimiche e Farmaceutiche, Università di Ferrara, via L. Borsari 46, 44121 Ferrara, Italy
| | - David S Bell
- Sigma-Aldrich/Supelco, 595 North Harrison Road, Bellefonte, PA 16823, USA
| | - Francesco Gasparrini
- Dipartimento di Chimica e Tecnologie del Farmaco, Sapienza Università di Roma, P.le Aldo Moro 5, 00185 Roma, Italy.
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69
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Affiliation(s)
- Martina Catani
- University of Ferrara, Department of Chemistry and Pharmaceutical Sciences, Via L. Borsari, 46, 44121 Ferrara, Italy
| | - Roberta Guzzinati
- University of Ferrara, Department of Chemistry and Pharmaceutical Sciences, Via L. Borsari, 46, 44121 Ferrara, Italy
- Italian National Agency for New Technologies, Energy and Sustainable Economic Development (ENEA), R. C. Casaccia, Via Anguillarese, 301, S. Maria
di Galeria, 00123, Roma, Italy
| | - Nicola Marchetti
- University of Ferrara, Department of Chemistry and Pharmaceutical Sciences, Via L. Borsari, 46, 44121 Ferrara, Italy
| | - Luisa Pasti
- University of Ferrara, Department of Chemistry and Pharmaceutical Sciences, Via L. Borsari, 46, 44121 Ferrara, Italy
| | - Alberto Cavazzini
- University of Ferrara, Department of Chemistry and Pharmaceutical Sciences, Via L. Borsari, 46, 44121 Ferrara, Italy
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70
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Bosi V, Sarti E, Navacchia ML, Perrone D, Pasti L, Cavazzini A, Capobianco ML. Gold-nanoparticle extraction and reversed-electrode-polarity stacking mode combined to enhance capillary electrophoresis sensitivity for conjugated nucleosides and oligonucleotides containing thioether linkers. Anal Bioanal Chem 2015; 407:5405-15. [PMID: 25956598 DOI: 10.1007/s00216-015-8702-6] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2015] [Revised: 04/02/2015] [Accepted: 04/13/2015] [Indexed: 01/22/2023]
Abstract
We present a capillary electrophoresis method for determining two different C8-conjugated deoxyadenosines, and for oligonucleotides containing them, in which a psoralen or an acridine molecule is bonded to the base via a short alkyl chain containing sulfur ethers at both ends. The sensitivity of the micellar electrokinetic chromatography (MEKC) method was increased by using two preconcentration techniques, micro solid-phase extraction (μSPE) followed by reversed-electrode-polarity stacking mode (REPSM). Variables that affect the efficiency of the extraction in μSPE and preconcentration by REPSM, including the type and volume of extraction nanoparticle, concentration, and injection time, were investigated. Under the optimum conditions, enrichment factors obtained were in the range 360-400. The limits of detection (LODs) at a signal-to-noise ratio of 3 ranged from 2 to 5 nmol L(-1). The relative recoveries of labelled adenosines from water samples were 95-103%. The proposed method provided high enrichment factors and good precision and accuracy with a short analysis time. On the basis of the advantages of simplicity, high selectivity, high sensitivity, and good reproducibility, the proposed method may have great potential for biochemical applications.
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Affiliation(s)
- Valentina Bosi
- Department of Chemistry and Pharmaceutical Sciences, University of Ferrara, via L. Borsari 46, 44121, Ferrara, Italy
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71
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Sciascera L, Ismail O, Ciogli A, Kotoni D, Cavazzini A, Botta L, Szczerba T, Kocergin J, Villani C, Gasparrini F. Expanding the potential of chiral chromatography for high-throughput screening of large compound libraries by means of sub–2μm Whelk-O 1 stationary phase in supercritical fluid conditions. J Chromatogr A 2015; 1383:160-8. [DOI: 10.1016/j.chroma.2015.01.042] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2014] [Revised: 01/13/2015] [Accepted: 01/14/2015] [Indexed: 10/24/2022]
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72
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Lerin LA, Catani M, Oliveira D, Massi A, Bortolini O, Cavazzini A, Giovannini PP. Continuous ion-exchange resin catalysed esterification of eugenol for the optimized production of eugenyl acetate using a packed bed microreactor. RSC Adv 2015. [DOI: 10.1039/c5ra08457a] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [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] Open
Abstract
A green scalable flow-synthesis process for the production of eugenyl acetate, an eugenol derivative with potential applications in food and medicinal chemistry, was developed.
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Affiliation(s)
- L. A. Lerin
- Dipartimento di Scienze Chimiche e Farmaceutiche
- Università di Ferrara
- Ferrara
- Italy
| | - M. Catani
- Dipartimento di Scienze Chimiche e Farmaceutiche
- Università di Ferrara
- Ferrara
- Italy
| | - D. Oliveira
- Departamento de Engenharia Química e Engenharia de Alimentos
- Universidade Federal de Santa Catarina
- Florianópolis
- Brazil
| | - A. Massi
- Dipartimento di Scienze Chimiche e Farmaceutiche
- Università di Ferrara
- Ferrara
- Italy
| | - O. Bortolini
- Dipartimento di Scienze Chimiche e Farmaceutiche
- Università di Ferrara
- Ferrara
- Italy
| | - A. Cavazzini
- Dipartimento di Scienze Chimiche e Farmaceutiche
- Università di Ferrara
- Ferrara
- Italy
| | - P. P. Giovannini
- Dipartimento di Scienze Chimiche e Farmaceutiche
- Università di Ferrara
- Ferrara
- Italy
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73
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Loberto N, Tebon M, Lampronti I, Marchetti N, Aureli M, Bassi R, Giri MG, Bezzerri V, Lovato V, Cantù C, Munari S, Cheng SH, Cavazzini A, Gambari R, Sonnino S, Cabrini G, Dechecchi MC. GBA2-encoded β-glucosidase activity is involved in the inflammatory response to Pseudomonas aeruginosa. PLoS One 2014; 9:e104763. [PMID: 25141135 PMCID: PMC4139313 DOI: 10.1371/journal.pone.0104763] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [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: 02/14/2014] [Accepted: 07/16/2014] [Indexed: 11/19/2022] Open
Abstract
Current anti-inflammatory strategies for the treatment of pulmonary disease in cystic fibrosis (CF) are limited; thus, there is continued interest in identifying additional molecular targets for therapeutic intervention. Given the emerging role of sphingolipids (SLs) in various respiratory disorders, including CF, drugs that selectively target the enzymes associated with SL metabolism are under development. Miglustat, a well-characterized iminosugar-based inhibitor of β-glucosidase 2 (GBA2), has shown promise in CF treatment because it reduces the inflammatory response to infection by P. aeruginosa and restores F508del-CFTR chloride channel activity. This study aimed to probe the molecular basis for the anti-inflammatory activity of miglustat by examining specifically the role of GBA2 following the infection of CF bronchial epithelial cells by P. aeruginosa. We also report the anti-inflammatory activity of another potent inhibitor of GBA2 activity, namely N-(5-adamantane-1-yl-methoxy)pentyl)-deoxynojirimycin (Genz-529648). In CF bronchial cells, inhibition of GBA2 by miglustat or Genz-529648 significantly reduced the induction of IL-8 mRNA levels and protein release following infection by P. aeruginosa. Hence, the present data demonstrate that the anti-inflammatory effects of miglustat and Genz-529648 are likely exerted through inhibition of GBA2.
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Affiliation(s)
- Nicoletta Loberto
- Department of Medical Biotechnology and Translational Medicine, University of Milano, Milano, Italy
| | - Maela Tebon
- Laboratory of Molecular Pathology, Department of Pathology and Diagnostics, University Hospital of Verona, Verona, Italy
| | - Ilaria Lampronti
- Department of Life Sciences and Biotechnology, Section of Biochemistry and Molecular Biology, University of Ferrara, Ferrara, Italy
| | - Nicola Marchetti
- Department of Chemistry and Pharmaceutical Sciences, University of Ferrara, Ferrara, Italy
| | - Massimo Aureli
- Department of Medical Biotechnology and Translational Medicine, University of Milano, Milano, Italy
| | - Rosaria Bassi
- Department of Medical Biotechnology and Translational Medicine, University of Milano, Milano, Italy
| | - Maria Grazia Giri
- Medical Physics Unit, Department of Pathology and Diagnostics, University Hospital of Verona, Verona, Italy
| | - Valentino Bezzerri
- Laboratory of Molecular Pathology, Department of Pathology and Diagnostics, University Hospital of Verona, Verona, Italy
| | - Valentina Lovato
- Laboratory of Molecular Pathology, Department of Pathology and Diagnostics, University Hospital of Verona, Verona, Italy
| | - Cinzia Cantù
- Laboratory of Molecular Pathology, Department of Pathology and Diagnostics, University Hospital of Verona, Verona, Italy
| | - Silvia Munari
- Laboratory of Molecular Pathology, Department of Pathology and Diagnostics, University Hospital of Verona, Verona, Italy
| | - Seng H. Cheng
- Genzyme, a Sanofi Company, Framingham, Massachusetts, United States of America
| | - Alberto Cavazzini
- Department of Chemistry and Pharmaceutical Sciences, University of Ferrara, Ferrara, Italy
| | - Roberto Gambari
- Department of Life Sciences and Biotechnology, Section of Biochemistry and Molecular Biology, University of Ferrara, Ferrara, Italy
| | - Sandro Sonnino
- Department of Medical Biotechnology and Translational Medicine, University of Milano, Milano, Italy
| | - Giulio Cabrini
- Laboratory of Molecular Pathology, Department of Pathology and Diagnostics, University Hospital of Verona, Verona, Italy
| | - Maria Cristina Dechecchi
- Laboratory of Molecular Pathology, Department of Pathology and Diagnostics, University Hospital of Verona, Verona, Italy
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74
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Ciogli A, Pierri G, Kotoni D, Cavazzini A, Botta L, Villani C, Kocergin J, Gasparrini F. Toward enantioselective nano ultrahigh-performance liquid chromatography with Whelk-O1 chiral stationary phase. Electrophoresis 2014; 35:2819-23. [DOI: 10.1002/elps.201400240] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2014] [Revised: 06/25/2014] [Accepted: 06/30/2014] [Indexed: 12/23/2022]
Affiliation(s)
- Alessia Ciogli
- Department of Drug Chemistry and Technology; “Sapienza” University of Rome; Rome Italy
| | - Giuseppe Pierri
- Department of Drug Chemistry and Technology; “Sapienza” University of Rome; Rome Italy
| | - Dorina Kotoni
- Department of Drug Chemistry and Technology; “Sapienza” University of Rome; Rome Italy
| | - Alberto Cavazzini
- Department of Chemistry and Pharmaceutical Sciences; University of Ferrara; Ferrara Italy
| | - Lorenzo Botta
- Department of Pharmacy; University of Naples Federico II; Naples Italy
| | - Claudio Villani
- Department of Drug Chemistry and Technology; “Sapienza” University of Rome; Rome Italy
| | | | - Francesco Gasparrini
- Department of Drug Chemistry and Technology; “Sapienza” University of Rome; Rome Italy
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75
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Ciogli A, Simone P, Villani C, Gasparrini F, Laganà A, Capitani D, Marchetti N, Pasti L, Massi A, Cavazzini A. Revealing the Fine Details of Functionalized Silica Surfaces by Solid-State NMR and Adsorption Isotherm Measurements: The Case of Fluorinated Stationary Phases for Liquid Chromatography. Chemistry 2014; 20:8138-48. [DOI: 10.1002/chem.201304330] [Citation(s) in RCA: 10] [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: 11/05/2013] [Revised: 02/25/2014] [Indexed: 11/11/2022]
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76
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Cavazzini A, Marchetti N, Guzzinati R, Pasti L, Ciogli A, Gasparrini F, Laganà A. Understanding Mixed-Mode Retention Mechanisms in Liquid Chromatography with Hydrophobic Stationary Phases. Anal Chem 2014; 86:4919-26. [DOI: 10.1021/ac500248b] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Affiliation(s)
- Alberto Cavazzini
- Department
of Chemistry and Pharmaceutical Sciences, University of Ferrara, via L. Borsari, 46, 44121 Ferrara, Italy
| | - Nicola Marchetti
- Department
of Chemistry and Pharmaceutical Sciences, University of Ferrara, via L. Borsari, 46, 44121 Ferrara, Italy
| | - Roberta Guzzinati
- Department
of Chemistry and Pharmaceutical Sciences, University of Ferrara, via L. Borsari, 46, 44121 Ferrara, Italy
| | - Luisa Pasti
- Department
of Chemistry and Pharmaceutical Sciences, University of Ferrara, via L. Borsari, 46, 44121 Ferrara, Italy
| | - Alessia Ciogli
- Dipartimento
di Chimica e Tecnologia del Farmaco, University “La Sapienza”, 00185 Rome, Italy
| | - Francesco Gasparrini
- Dipartimento
di Chimica e Tecnologia del Farmaco, University “La Sapienza”, 00185 Rome, Italy
| | - Aldo Laganà
- Department
of Chemistry, University of Rome, “La Sapienza”, Piazzale
Aldo Moro 5, 00185 Rome, Italy
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77
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Samuelsson J, Cavazzini A, Shalliker RA, Fornstedt T. Regeneration of a silica monolithic rod column using harsh methods followed by firm thermodynamic and kinetic validation. J Sep Sci 2014; 37:906-11. [PMID: 24532492 DOI: 10.1002/jssc.201300683] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [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: 06/26/2013] [Revised: 01/31/2014] [Accepted: 01/31/2014] [Indexed: 11/10/2022]
Abstract
In this study, a numerical tool is introduced--based on thermodynamic and kinetic separation theory--for validating the regeneration of monolithic rod columns after cutting their inlet sections. A long-used RP-18e monolithic column was deemed to be unfit for further coffee analysis because of poor separation performance. The columns brownish inlet section was physically removed with a lathe, leaving a clean white inlet section. The original and regenerated columns were extensively analyzed and compared using numerical tools for processing adsorption data. The perturbation peak method was used to measure the adsorption isotherm of phenol on the original and regenerated monolith and the adsorption energy distributions were calculated for identifying any change in the degree of heterogeneity. Although peak shapes improved considerably after regeneration, no significant differences were found in the detailed characterization of the processed adsorption data between the original column and the regenerated one. This indicates that the removal of a section of the monolithic bed can be undertaken without damaging the column and columns in which their inlet head sections are contaminated may still function with normal adsorption behavior. In addition, the combined thermodynamic and kinetic methodology could accurately be used to evaluate any regeneration method of columns.
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Affiliation(s)
- Jörgen Samuelsson
- Department of Engineering and Chemical Sciences, Karlstad University, Karlstad, Sweden
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78
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Capriotti AL, Cavaliere C, Cavazzini A, Foglia P, Laganà A, Piovesana S, Samperi R. High performance liquid chromatography tandem mass spectrometry determination of perfluorinated acids in cow milk. J Chromatogr A 2013; 1319:72-9. [PMID: 24183594 DOI: 10.1016/j.chroma.2013.10.029] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2013] [Revised: 09/03/2013] [Accepted: 10/09/2013] [Indexed: 10/26/2022]
Abstract
A new and sensitive liquid chromatography/electrospray-tandem mass spectrometric (LC/ESI-MS/MS) method for the determination of 12 perfluorinated compounds (PFCs) in cow milk is described. Milk samples were extracted with acetone and cleaned-up by a graphitized carbon black solid-phase extraction cartridge, optimizing the entire procedure by using a screening experimental design. LC/ESI-MS/MS was performed in negative ion mode using multiple reaction monitoring mode. The performance of the method was evaluated under the optimized conditions in terms of matrix effects, range of linearity, accuracy, and repeatability. For all compounds, linearity in matrix was observed in the range LOQ-10μgL(-1), and coefficients of determination R(2) ranged from 0.9982 to 0.9999. The analytical recoveries, relative to the isotopic internal standard, measured at 10 and 50ngL(-1) were in the range of 91-105%, with relative standard deviations below 6% and method detection limit, based on the blank value +3 times the standard deviation of the blank, ranged from 0.5 to 3ngL(-1). The final method developed was used to determine the concentration of PFCs in 15 retail milk samples. None of these compounds were detected in cow milk analyzed samples.
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Affiliation(s)
- Anna Laura Capriotti
- Department of Chemistry, University "La Sapienza", Piazzale Aldo Moro 5, Rome 00185, Italy
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79
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Astolfi L, Guaran V, Marchetti N, Olivetto E, Simoni E, Cavazzini A, Jolly C, Martini A. Cochlear implants and drug delivery:In vitroevaluation of dexamethasone release. J Biomed Mater Res B Appl Biomater 2013; 102:267-73. [DOI: 10.1002/jbm.b.33004] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2013] [Revised: 05/30/2013] [Accepted: 07/01/2013] [Indexed: 12/20/2022]
Affiliation(s)
- Laura Astolfi
- Department of Neuroscience, Bioacoustics Research Laboratory; University of Padua; 35129 Padua Italy
| | - Valeria Guaran
- Department of Neuroscience, Bioacoustics Research Laboratory; University of Padua; 35129 Padua Italy
| | - Nicola Marchetti
- Department of Chemistry and Pharmaceutical Sciences; University of Ferrara; 44121 Ferrara Italy
| | - Elena Olivetto
- Department of Neuroscience, Bioacoustics Research Laboratory; University of Padua; 35129 Padua Italy
| | - Edi Simoni
- Department of Neuroscience, Bioacoustics Research Laboratory; University of Padua; 35129 Padua Italy
| | - Alberto Cavazzini
- Department of Chemistry and Pharmaceutical Sciences; University of Ferrara; 44121 Ferrara Italy
| | - Claude Jolly
- MED-EL Hearing Implants; Innsbruck A6020 Austria
| | - Alessandro Martini
- Department of Neurosciences, ENT and Otosurgery Unit; University of Padua; 35129 Padua Italy
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80
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Pasti L, Sarti E, Cavazzini A, Marchetti N, Dondi F, Martucci A. Factors affecting drug adsorption on beta zeolites. J Sep Sci 2013; 36:1604-11. [DOI: 10.1002/jssc.201201142] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2012] [Revised: 02/13/2013] [Accepted: 02/14/2013] [Indexed: 11/05/2022]
Affiliation(s)
- Luisa Pasti
- Department of Chemistry and Pharmaceutical Sciences; University of Ferrara; Ferrara Italy
| | - Elena Sarti
- Department of Chemistry and Pharmaceutical Sciences; University of Ferrara; Ferrara Italy
- Terra&AcquaTech Laboratory; University of Ferrara; Ferrara Italy
| | - Alberto Cavazzini
- Department of Chemistry and Pharmaceutical Sciences; University of Ferrara; Ferrara Italy
| | - Nicola Marchetti
- Department of Chemistry and Pharmaceutical Sciences; University of Ferrara; Ferrara Italy
- Terra&AcquaTech Laboratory; University of Ferrara; Ferrara Italy
| | - Francesco Dondi
- Department of Chemistry and Pharmaceutical Sciences; University of Ferrara; Ferrara Italy
| | - Annalisa Martucci
- Physics and Earth Sciences Department; University of Ferrara; Ferrara Italy
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81
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Bortolini O, Cavazzini A, Giovannini PP, Greco R, Marchetti N, Massi A, Pasti L. A combined kinetic and thermodynamic approach for the interpretation of continuous-flow heterogeneous catalytic processes. Chemistry 2013; 19:7802-8. [PMID: 23589216 DOI: 10.1002/chem.201300181] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2013] [Indexed: 11/06/2022]
Abstract
The heterogeneous proline-catalyzed aldol reaction was investigated under continuous-flow conditions by means of a packed-bed microreactor. Reaction-progress kinetic analysis (RPKA) was used in combination with nonlinear chromatography for the interpretation, under synthetically relevant conditions, of important mechanistic aspects of the heterogeneous catalytic process at a molecular level. The information gathered by RPKA and nonlinear chromatography proved to be highly complementary and allowed for the assessment of optimal operating variables. In particular, the determination of the rate-determining step was pivotal for optimizing the feed composition. On the other hand, the competitive product inhibition was responsible for the unexpected decrease in the reaction yield following an apparently obvious variation in the feed composition. The study was facilitated by a suitable 2D instrumental arrangement for simultaneous flow reaction and online flow-injection analysis.
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Affiliation(s)
- Olga Bortolini
- Dipartimento di Scienze Chimiche e Farmaceutiche, Laboratorio di Chimica Organica, Università di Ferrara, Via L. Borsari 46, 44121 Ferrara, Italy
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82
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Cavazzini A, Pasti L, Greco R, Costa V, Solera D, Dondi F, Marchetti N, Laganà A, Gasparrini F. Geometric characterization of straight-chain perfluorohexylpropyl adsorbents for high performance liquid chromatography. J Chromatogr A 2013; 1286:47-54. [DOI: 10.1016/j.chroma.2013.02.050] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2012] [Revised: 02/12/2013] [Accepted: 02/15/2013] [Indexed: 11/24/2022]
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83
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Cavazzini A, Marchetti N, Pasti L, Greco R, Dondi F, Laganà A, Ciogli A, Gasparrini F. A New Method to Investigate the Intrusion of Water into Porous Hydrophobic Structures under Dynamic Conditions. Anal Chem 2012; 85:19-22. [DOI: 10.1021/ac303253b] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Affiliation(s)
- Alberto Cavazzini
- Department of Chemistry and Pharmaceutical Sciences, University of Ferrara, via L. Borsari 46, 44121 Ferrara,
Italy
| | - Nicola Marchetti
- Department of Chemistry and Pharmaceutical Sciences, University of Ferrara, via L. Borsari 46, 44121 Ferrara,
Italy
| | - Luisa Pasti
- Department of Chemistry and Pharmaceutical Sciences, University of Ferrara, via L. Borsari 46, 44121 Ferrara,
Italy
| | - Roberto Greco
- Department of Chemistry and Pharmaceutical Sciences, University of Ferrara, via L. Borsari 46, 44121 Ferrara,
Italy
| | - Francesco Dondi
- Department of Chemistry and Pharmaceutical Sciences, University of Ferrara, via L. Borsari 46, 44121 Ferrara,
Italy
| | - Aldo Laganà
- Department of Chemistry, University of Rome “La Sapienza”, Piazzale
A. Moro 5, 00185 Rome, Italy
| | - Alessia Ciogli
- Dipartimento di Chimica e Tecnologia del Farmaco, University of Rome “La Sapienza”, Piazzale A. Moro
5, 00185 Rome, Italy
| | - Francesco Gasparrini
- Dipartimento di Chimica e Tecnologia del Farmaco, University of Rome “La Sapienza”, Piazzale A. Moro
5, 00185 Rome, Italy
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84
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Marchetti N, Caciolli L, Laganà A, Gasparrini F, Pasti L, Dondi F, Cavazzini A. Fluorous Affinity Chromatography for Enrichment and Determination of Perfluoroalkyl Substances. Anal Chem 2012; 84:7138-45. [DOI: 10.1021/ac301442m] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Affiliation(s)
- Nicola Marchetti
- Lab “Terra&Acqua Tech”-Water Quality, Technopole of Ferrara and Department of Chemistry and Pharmaceutical Sciences, University of Ferrara, Ferrara, Italy
| | - Lorenzo Caciolli
- Lab “Terra&Acqua Tech”-Water Quality, Technopole of Ferrara and Department of Chemistry and Pharmaceutical Sciences, University of Ferrara, Ferrara, Italy
| | - Aldo Laganà
- Department of Chemistry, University “La Sapienza”, Rome, Italy
| | - Francesco Gasparrini
- Dipartimento
di Chimica e Tecnologia
del Farmaco, University “La Sapienza”, Rome, Italy
| | - Luisa Pasti
- Department
of Chemistry and
Pharmaceutical Sciences, University of Ferrara, Ferrara, Italy
| | - Francesco Dondi
- Department
of Chemistry and
Pharmaceutical Sciences, University of Ferrara, Ferrara, Italy
| | - Alberto Cavazzini
- Department
of Chemistry and
Pharmaceutical Sciences, University of Ferrara, Ferrara, Italy
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85
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Dalpiaz A, Marchetti N, Cavazzini A, Pasti L, Velaga S, Gavini E, Beggiato S, Ferraro L. Quantitative determination of zolmitriptan in rat blood and cerebrospinal fluid by reversed phase HPLC-ESI-MS/MS analysis: application to in vivo preclinical pharmacokinetic study. J Chromatogr B Analyt Technol Biomed Life Sci 2012; 901:72-8. [PMID: 22743338 DOI: 10.1016/j.jchromb.2012.06.001] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2011] [Revised: 05/25/2012] [Accepted: 06/03/2012] [Indexed: 10/28/2022]
Abstract
A fast HPLC-ESI-MS/MS method has been developed and validated for the quantification of the potent and selective antimigraine zolmitriptan in rat blood and cerebrospinal fluid (CSF). The assay has been then applied for in vivo preclinical studies. The analytical determination has been used to obtain pharmacokinetics of zolmitriptan in the two biological matrices after its intravenous or nasal administration. Liquid-liquid extraction of zolmitriptan was performed from 100 μL rat blood samples in the presence of N(6)-cyclopentyladenosine (internal standard) with the employment of ethyl acetate. Calibration standards were prepared by using blood matrix and following the same liquid-liquid extraction procedure. CSF samples were analyzed without any pre-treatment steps and by using an external calibration method in pure water matrix. Chromatographic separation was performed under reversed phase and a gradient elution condition on a C18 packed column (100 × 2.0 mm, 2.5 μm particles diameter). The mobile phase was a mixture between acetonitrile, water and formic acid (0.1% v/v). The applied HPLC-MS/MS method allowed low limits of detection, as calculated from calibration curves, of 6.6 and 24.4 ng/mL for water matrix and rat blood extracts, respectively. Linearity of the calibration curves was established up to 5 μM (1.44 μg/mL), as well as good assay accuracy. The intravenous infusion of 20 μg zolmitriptan to male Sprague-Dawley rats produced blood concentrations ranging from 9.4±0.7 to 1.24±0.07 μg/mL within 10 h, with a terminal half-life of 3.4±0.2h. The nasal administration of a water suspension of 20 μg zolmitriptan produced blood concentrations ranging from 2.92±0.21 to 0.85±0.07 μg/mL within 6h. One hour after zolmitriptan intravenous infusion or nasal administration, its CSF concentrations were 0.0539±0.0016 and 0.0453±0.0012 μg/mL, respectively. This study determined the suitability of the herein proposed method to investigate the pharmacokinetics of zolmitriptan after its administration by means of novel formulations and, hence, to evaluate the efficacy of innovative nose-to-brain drug delivery in preclinical studies.
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Affiliation(s)
- Alessandro Dalpiaz
- Department of Pharmaceutical Sciences, University of Ferrara, via Fossato di Mortara 19, 44121 Ferrara, Italy
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86
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Marchetti N, Pasti L, Dondi F, Cavazzini A. Recent Developments and Applications in Nonlinear Reversed Phase Liquid Chromatography. Adv Chromatogr 2012; 50:415-40. [PMID: 26437517 DOI: 10.1201/b11636-10] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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87
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Cavazzini A. Theoretical and practical aspects in the separation of large biomolecules. J Chromatogr A 2011; 1218:8725-6. [PMID: 22056238 DOI: 10.1016/j.chroma.2011.10.025] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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88
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Cavazzini A, Pasti L, Massi A, Marchetti N, Dondi F. Recent applications in chiral high performance liquid chromatography: A review. Anal Chim Acta 2011; 706:205-22. [DOI: 10.1016/j.aca.2011.08.038] [Citation(s) in RCA: 203] [Impact Index Per Article: 15.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2011] [Revised: 08/08/2011] [Accepted: 08/25/2011] [Indexed: 01/17/2023]
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89
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Pandoli O, Massi A, Cavazzini A, Spada GP, Cui D. Circular dichroism and UV-Vis absorption spectroscopic monitoring of production of chiral silver nanoparticles templated by guanosine 5'-monophosphate. Analyst 2011; 136:3713-9. [PMID: 21796288 DOI: 10.1039/c1an15288b] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
Herein we report the chemical reduction of silver ions incorporated into chiral supramolecular nanostructures by NaBH(4) in buffered (basic) and unbuffered conditions. In situ self-assembly of guanosine 5'-monophosphate (5'-GMP) templated by Ag(I) and generation of silver nanoparticles (NPs) were continuously monitored by CD and UV-Vis spectroscopy measurements. 5'-GMP has been identified as an efficient chiral organic ligand to complex silver ions into a hierarchical helical nanostructure and is a useful capping agent for stabilizing silver NPs with a size diameter lower than 20 nm. The observation of opposite signed bands in the CD spectra of Ag(I)/5'-GMP complexes at different pH has suggested the existence of opposite-handed supramolecular helical structures depending on pH. Both helical supramolecular structures induce chirality in the silver NPs during their growth of the same handedness as shown by the CD signals in the plasmon resonance band.
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Affiliation(s)
- Omar Pandoli
- Department of Bio-Nano-Science and Engineering, National Key Laboratory of Nano/Micro Fabrication, Institute of Micro-Nano Science and Technology, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, 200240, P.R. China.
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90
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Nassini R, Gees M, Harrison S, De Siena G, Materazzi S, Moretto N, Failli P, Preti D, Marchetti N, Cavazzini A, Mancini F, Pedretti P, Nilius B, Patacchini R, Geppetti P. Oxaliplatin elicits mechanical and cold allodynia in rodents via TRPA1 receptor stimulation. Pain 2011; 152:1621-1631. [PMID: 21481532 DOI: 10.1016/j.pain.2011.02.051] [Citation(s) in RCA: 238] [Impact Index Per Article: 18.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2010] [Revised: 02/18/2011] [Accepted: 02/28/2011] [Indexed: 02/09/2023]
Abstract
Platinum-based anticancer drugs cause neurotoxicity. In particular, oxaliplatin produces early-developing, painful, and cold-exacerbated paresthesias. However, the mechanism underlying these bothersome and dose-limiting adverse effects is unknown. We hypothesized that the transient receptor potential ankyrin 1 (TRPA1), a cation channel activated by oxidative stress and cold temperature, contributes to mechanical and cold hypersensitivity caused by oxaliplatin and cisplatin. Oxaliplatin and cisplatin evoked glutathione-sensitive relaxation, mediated by TRPA1 stimulation and the release of calcitonin gene-related peptide from sensory nerve terminals in isolated guinea pig pulmonary arteries. No calcium response was observed in cultured mouse dorsal root ganglion neurons or in naïve Chinese hamster ovary (CHO) cells exposed to oxaliplatin or cisplatin. However, oxaliplatin, and with lower potency, cisplatin, evoked a glutathione-sensitive calcium response in CHO cells expressing mouse TRPA1. One single administration of oxaliplatin produced mechanical and cold hyperalgesia in rats, an effect selectively abated by the TRPA1 antagonist HC-030031. Oxaliplatin administration caused mechanical and cold allodynia in mice. Both responses were absent in TRPA1-deficient mice. Administration of cisplatin evoked mechanical allodynia, an effect that was reduced in TRPA1-deficient mice. TRPA1 is therefore required for oxaliplatin-evoked mechanical and cold hypersensitivity, and contributes to cisplatin-evoked mechanical allodynia. Channel activation is most likely caused by glutathione-sensitive molecules, including reactive oxygen species and their byproducts, which are generated after tissue exposure to platinum-based drugs from cells surrounding nociceptive nerve terminals.
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Affiliation(s)
- Romina Nassini
- Department of Preclinical and Clinical Pharmacology, University of Florence, Florence, Italy Department of Molecular Cell Biology, Katholieke Universiteit, Leuven, Belgium Department of Pharmacology, Chiesi Farmaceutici, Parma, Italy Department of Pharmaceutical Chemistry, University of Ferrara, Ferrara, Italy Chemistry Department, University of Ferrara, Ferrara, Italy
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91
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Trapella C, Pela M, Del Zoppo L, Calo G, Camarda V, Ruzza C, Cavazzini A, Costa V, Bertolasi V, Reinscheid RK, Salvadori S, Guerrini R. Synthesis and separation of the enantiomers of the neuropeptide S receptor antagonist (9R/S)-3-oxo-1,1-diphenyl-tetrahydro-oxazolo[3,4-a]pyrazine-7-carboxylic acid 4-fluoro-benzylamide (SHA 68). J Med Chem 2011; 54:2738-44. [PMID: 21466221 DOI: 10.1021/jm200138r] [Citation(s) in RCA: 19] [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] [Indexed: 11/28/2022]
Abstract
This study reports the synthesis, chromatographic separation, and pharmacological evaluation of the two enantiomers of the neuropeptide S receptor (NPSR) antagonist (9R/S)-3-oxo-1,1-diphenyl-tetrahydro-oxazolo[3,4-a]pyrazine-7-carboxylic acid 4-fluoro-benzylamide (SHA 68). The (9R)-3-oxo-1,1-diphenyl-tetrahydro-oxazolo[3,4-a]pyrazine-7-carboxylic acid 4-fluoro-benzylamide (compound 10) and (9S)-3-oxo-1,1-diphenyl-tetrahydro-oxazolo[3,4-a]pyrazine-7-carboxylic acid 4-fluoro-benzylamide (compound 10a) were synthesized and their purity assessed by chiral chromatography. The absolute configuration of the enantiomer 10 has been assigned from the crystal structure of the corresponding (S)-phenyl ethyl amine derivative 8. Calcium mobilization studies performed on cells expressing the recombinant NPSR demonstrated that compound 10 is the active enantiomer while the contribution of 10a to the NPSR antagonist properties of the racemic mixture is negligible.
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Affiliation(s)
- Claudio Trapella
- Department of Pharmaceutical Sciences, University of Ferrara, Ferrara, Italy
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92
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Massi A, Cavazzini A, Zoppo LD, Pandoli O, Costa V, Pasti L, Giovannini PP. Toward the optimization of continuous-flow aldol and α-amination reactions by means of proline-functionalized silicon packed-bed microreactors. Tetrahedron Lett 2011. [DOI: 10.1016/j.tetlet.2010.11.157] [Citation(s) in RCA: 54] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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93
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Vajda P, Felinger A, Cavazzini A. Adsorption equilibria of proline in hydrophilic interaction chromatography. J Chromatogr A 2010; 1217:5965-70. [DOI: 10.1016/j.chroma.2010.07.058] [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: 05/15/2010] [Revised: 07/16/2010] [Accepted: 07/23/2010] [Indexed: 10/19/2022]
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94
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Costa V, Pasti L, Marchetti N, Dondi F, Cavazzini A. Automated instrumental method for on-line fraction analysis and peak deconvolution in gradient multicomponent overloaded high performance liquid chromatography. J Chromatogr A 2010; 1217:4919-24. [DOI: 10.1016/j.chroma.2010.05.034] [Citation(s) in RCA: 5] [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: 03/11/2010] [Revised: 05/18/2010] [Accepted: 05/19/2010] [Indexed: 11/30/2022]
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95
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Pasti L, Cavazzini A, Nassi M, Dondi F. Dynamic chromatography: A stochastic approach. J Chromatogr A 2010; 1217:1000-9. [DOI: 10.1016/j.chroma.2009.10.036] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2009] [Revised: 10/05/2009] [Accepted: 10/12/2009] [Indexed: 10/20/2022]
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96
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Mastrocicco M, Colombani N, Cavazzini A, Pasti L. A green and fast chromatographic method for determining organic compound mobility in soils. J Chromatogr A 2009; 1216:6802-9. [DOI: 10.1016/j.chroma.2009.08.006] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2009] [Revised: 07/30/2009] [Accepted: 08/05/2009] [Indexed: 10/20/2022]
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97
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Cavazzini A, Pasti L, Dondi F, Finessi M, Costa V, Gasparrini F, Ciogli A, Bedani F. Binding of Dipeptides and Amino Acids to Teicoplanin Chiral Stationary Phase: Apparent Homogeneity of Some Heterogeneous Systems. Anal Chem 2009; 81:6735-43. [DOI: 10.1021/ac900677f] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Alberto Cavazzini
- Department of Chemistry, University of Ferrara, via L. Borsari 46, I-44100 Ferrara, Italy, Dipartimento di Studi di Chimica e Tecnologia del Farmaco, Università degli Studi di Roma, “La Sapienza”, P.le A. Moro 5, I-00185 Roma, Italy, Polymer-Analysis Group, Van’t Hoff Institute for Molecular Sciences, University of Amsterdam, Nieuwe Achtergracht 166, 1018 WV Amsterdam, The Netherlands
| | - Luisa Pasti
- Department of Chemistry, University of Ferrara, via L. Borsari 46, I-44100 Ferrara, Italy, Dipartimento di Studi di Chimica e Tecnologia del Farmaco, Università degli Studi di Roma, “La Sapienza”, P.le A. Moro 5, I-00185 Roma, Italy, Polymer-Analysis Group, Van’t Hoff Institute for Molecular Sciences, University of Amsterdam, Nieuwe Achtergracht 166, 1018 WV Amsterdam, The Netherlands
| | - Francesco Dondi
- Department of Chemistry, University of Ferrara, via L. Borsari 46, I-44100 Ferrara, Italy, Dipartimento di Studi di Chimica e Tecnologia del Farmaco, Università degli Studi di Roma, “La Sapienza”, P.le A. Moro 5, I-00185 Roma, Italy, Polymer-Analysis Group, Van’t Hoff Institute for Molecular Sciences, University of Amsterdam, Nieuwe Achtergracht 166, 1018 WV Amsterdam, The Netherlands
| | - Marco Finessi
- Department of Chemistry, University of Ferrara, via L. Borsari 46, I-44100 Ferrara, Italy, Dipartimento di Studi di Chimica e Tecnologia del Farmaco, Università degli Studi di Roma, “La Sapienza”, P.le A. Moro 5, I-00185 Roma, Italy, Polymer-Analysis Group, Van’t Hoff Institute for Molecular Sciences, University of Amsterdam, Nieuwe Achtergracht 166, 1018 WV Amsterdam, The Netherlands
| | - Valentina Costa
- Department of Chemistry, University of Ferrara, via L. Borsari 46, I-44100 Ferrara, Italy, Dipartimento di Studi di Chimica e Tecnologia del Farmaco, Università degli Studi di Roma, “La Sapienza”, P.le A. Moro 5, I-00185 Roma, Italy, Polymer-Analysis Group, Van’t Hoff Institute for Molecular Sciences, University of Amsterdam, Nieuwe Achtergracht 166, 1018 WV Amsterdam, The Netherlands
| | - Francesco Gasparrini
- Department of Chemistry, University of Ferrara, via L. Borsari 46, I-44100 Ferrara, Italy, Dipartimento di Studi di Chimica e Tecnologia del Farmaco, Università degli Studi di Roma, “La Sapienza”, P.le A. Moro 5, I-00185 Roma, Italy, Polymer-Analysis Group, Van’t Hoff Institute for Molecular Sciences, University of Amsterdam, Nieuwe Achtergracht 166, 1018 WV Amsterdam, The Netherlands
| | - Alessia Ciogli
- Department of Chemistry, University of Ferrara, via L. Borsari 46, I-44100 Ferrara, Italy, Dipartimento di Studi di Chimica e Tecnologia del Farmaco, Università degli Studi di Roma, “La Sapienza”, P.le A. Moro 5, I-00185 Roma, Italy, Polymer-Analysis Group, Van’t Hoff Institute for Molecular Sciences, University of Amsterdam, Nieuwe Achtergracht 166, 1018 WV Amsterdam, The Netherlands
| | - Filippo Bedani
- Department of Chemistry, University of Ferrara, via L. Borsari 46, I-44100 Ferrara, Italy, Dipartimento di Studi di Chimica e Tecnologia del Farmaco, Università degli Studi di Roma, “La Sapienza”, P.le A. Moro 5, I-00185 Roma, Italy, Polymer-Analysis Group, Van’t Hoff Institute for Molecular Sciences, University of Amsterdam, Nieuwe Achtergracht 166, 1018 WV Amsterdam, The Netherlands
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98
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Marchetti N, Cavazzini A, Pasti L, Dondi F. Determination of adsorption isotherms by means of HPLC: Adsorption mechanism elucidation and separation optimization. J Sep Sci 2009; 32:727-41. [DOI: 10.1002/jssc.200800425] [Citation(s) in RCA: 3] [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: 11/07/2022]
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99
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Cavazzini A, Massi A, Bergamaschi G, Braga S, Dondi F, Dondoni A. Combining Synthetic and Analytical Strategies for Preparative HPLC Enantioseparation of Monastrol Racemic Mixture. Biotechnol Prog 2008; 20:603-12. [PMID: 15059008 DOI: 10.1021/bp034267o] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [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: 11/28/2022]
Abstract
Large-scale resolution of racemic monastrol has been carried out by normal-phase mode HPLC on an amylose-based chiral stationary phase. Because monastrol solubility, in media of proper compositions for normal-mode HPLC separations (in terms of retention factors and selectivity), was significantly low and impractical for preparative scopes, racemic monastrol was transformed into the corresponding O-tert-butyldimethylsilyl derivative. The tert-butyldimethylsilyl group was chosen as a suitable derivatizing agent because it induced approximatively a six-times higher solubility and allowed for an almost quantitative recovery of pure monastrol from the derivatization-deprotection sequence. The competitive isotherms of the O-tert-butyldimethylsilyl compounds, measured through frontal analysis, were fitted to competitive Langmuir and four-parameter bi-Langmuir models. The equilibrium dispersive model of chromatography was used for modeling the nonlinear separation of the racemate and to optimize the experimental conditions for collection of highly concentrated fractions of pure (R,S)-O-tert-butyldimethylsilyl compounds, from which significant amounts of the corresponding enantiomers of monastrol (about 100 mg of each enantiomer with 30 runs on an analytical-scale column) were obtained by quantitative back-derivatization.
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Affiliation(s)
- Alberto Cavazzini
- Department of Chemistry, University of Ferrara, via L. Borsari 46, I-44100 Ferrara, Italy.
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100
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Marchetti N, Cavazzini A, Gritti F, Guiochon G. Gradient elution separation and peak capacity of columns packed with porous shell particles. J Chromatogr A 2007; 1163:203-11. [PMID: 17632112 DOI: 10.1016/j.chroma.2007.06.046] [Citation(s) in RCA: 72] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2007] [Revised: 06/13/2007] [Accepted: 06/18/2007] [Indexed: 10/23/2022]
Abstract
The separation of the tryptic digests of myoglobin and bovine serum albumin were carried out in the gradient elution mode, using water, acetonitrile and TFA as the mobile phase components and columns packed with a new type of shell particles, Halo C(18). These particles give very high efficiencies, characterized with an unusually low eddy diffusion contribution and a small mass transfer contribution. However, because the molecular diffusivities of the peptides in the digest are small, the mobile phase velocity corresponding to the optimum velocity for maximum efficiency is also small, of the order of 0.3 mm/s. The gradient slopes also must be small. Peak capacities of 400 were achieved, with analysis time of the order of an hour.
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Affiliation(s)
- Nicola Marchetti
- Department of Chemistry, The University of Tennessee, Knoxville, TN 37996-1600, USA
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