1
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Barili S, Bernetti A, Sannino C, Montegiove N, Calzoni E, Cesaretti A, Pinchuk I, Pezzolla D, Turchetti B, Buzzini P, Emiliani C, Gigliotti G. Impact of PVC microplastics on soil chemical and microbiological parameters. Environ Res 2023; 229:115891. [PMID: 37059323 DOI: 10.1016/j.envres.2023.115891] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/02/2023] [Revised: 03/15/2023] [Accepted: 04/11/2023] [Indexed: 05/21/2023]
Abstract
Microplastics (MPs) are emerging pollutants whose occurrence is a global problem in natural ecosystems including soil. Among MPs, polyvinyl chloride (PVC) is a well-known polymer with remarkable resistance to degradation, and because its recalcitrant nature serious environmental concerns are created during manufacturing and waste disposal. The effect of PVC (0.021% w/w) on chemical and microbial parameters of an agricultural soil was tested by a microcosm experiment at different incubation times (from 3 to 360 days). Among chemical parameters, soil CO2 emission, fluorescein diacetate (FDA) activity, total organic C (TOC), total N, water extractable organic C (WEOC), water extractable N (WEN) and SUVA254 were considered, while the structure of soil microbial communities was studied at different taxonomic levels (phylum and genus) by sequencing bacterial 16S and fungal ITS2 rDNA (Illumina MiSeq). Although some fluctuations were found, chemical and microbiological parameters exhibited some significant trends. Significant (p < 0.05) variations of soil CO2 emission, FDA hydrolysis, TOC, WEOC and WEN were found in PVC-treated soils over different incubation times. Considering the structure of soil microbial communities, the presence of PVC significantly (p < 0.05) affected the abundances of specific bacterial and fungal taxa: Candidatus_Saccharibacteria, Proteobacteria, Actinobacteria, Acidobacteria and Bacteroides among bacteria, and Basidiomycota, Mortierellomycota and Ascomycota among fungi. After one year of experiment, a reduction of the number and the dimensions of PVC was detected supposing a possible role of microorganisms on PVC degradation. The abundance of both bacterial and fungal taxa at phylum and genus level was also affected by PVC, suggesting that the impact of this polymer could be taxa-dependent.
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Affiliation(s)
- Sofia Barili
- Department of Civil and Environmental Engineering, University of Perugia, Italy
| | - Alessandro Bernetti
- Department of Agricultural, Food and Environmental Science, University of Perugia, Italy
| | - Ciro Sannino
- Department of Agricultural, Food and Environmental Science, University of Perugia, Italy.
| | - Nicolò Montegiove
- Department of Chemistry, Biology and Biotechnology, University of Perugia, Italy
| | - Eleonora Calzoni
- Department of Chemistry, Biology and Biotechnology, University of Perugia, Italy
| | - Alessio Cesaretti
- Department of Chemistry, Biology and Biotechnology, University of Perugia, Italy
| | - Irina Pinchuk
- Department of Agricultural, Food and Environmental Science, University of Perugia, Italy
| | - Daniela Pezzolla
- Department of Civil and Environmental Engineering, University of Perugia, Italy
| | - Benedetta Turchetti
- Department of Agricultural, Food and Environmental Science, University of Perugia, Italy
| | - Pietro Buzzini
- Department of Agricultural, Food and Environmental Science, University of Perugia, Italy
| | - Carla Emiliani
- Department of Chemistry, Biology and Biotechnology, University of Perugia, Italy
| | - Giovanni Gigliotti
- Department of Civil and Environmental Engineering, University of Perugia, Italy
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Montegiove N, Leonardi L, Cesaretti A, Pellegrino RM, Pellegrino A, Emiliani C, Calzoni E. Biogenic Amine Content Analysis of Three Chicken-Based Dry Pet Food Formulations. Animals (Basel) 2023; 13:1945. [PMID: 37370455 DOI: 10.3390/ani13121945] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2023] [Revised: 06/02/2023] [Accepted: 06/05/2023] [Indexed: 06/29/2023] Open
Abstract
The pet food market is constantly expanding, and more and more attention is paid to the feeding of pets. Dry foods stand out and are often preferred due to their long shelf life, ease of administration, and low cost. In this context, dry foods are formulated from fresh meats, meat meals, or a mix of the two. These raw materials are often meat not fit for human consumption; they might be subject to contamination and proliferation of microorganisms which, by degrading the organic component, can lead to the formation of undesirable by-products such as biogenic amines. These nitrogenous compounds obtained by decarboxylation of amino acids can therefore be found in high-protein foods, and their ingestion in large quantities can cause intoxication and be harmful. This study aims at analyzing the possible presence of biogenic amines in three different formulations of chicken-based kibbles for pets: one obtained from fresh meat, one from meat meal, and one from a mix of the two. This study is also focused on the presence of free amino acids as they represent the key substrate for decarboxylating enzymes. Mass spectrometry (Q-TOF LC/MS) was used to analyze the presence of biogenic amines and free amino acids. The results show that fresh-meat-based products have a lower content of biogenic amines, and at the same time a higher quantity of free amino acids; on the contrary, meat-meal- and mix-based products have a greater quantity of biogenic amines and a lower concentration of free amino acids, suggesting that there has been a higher microbial proliferation as proved by the total aerobic mesophilic bacteria counts. It is therefore clear that fresh-meat-based kibbles are to be preferred when they are used for preparing dry pet food due to the lowest concentration of biogenic amines.
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Affiliation(s)
- Nicolò Montegiove
- Department of Chemistry, Biology and Biotechnology, Biochemistry and Molecular Biology Section, University of Perugia, Via del Giochetto, 06126 Perugia, Italy
| | - Leonardo Leonardi
- Department of Veterinary Medicine, University of Perugia, Via San Costanzo 4, 06126 Perugia, Italy
| | - Alessio Cesaretti
- Department of Chemistry, Biology and Biotechnology, Biochemistry and Molecular Biology Section, University of Perugia, Via del Giochetto, 06126 Perugia, Italy
- Centro di Eccellenza sui Materiali Innovativi Nanostrutturati (CEMIN), University of Perugia, Via del Giochetto, 06126 Perugia, Italy
| | - Roberto Maria Pellegrino
- Department of Chemistry, Biology and Biotechnology, Biochemistry and Molecular Biology Section, University of Perugia, Via del Giochetto, 06126 Perugia, Italy
| | | | - Carla Emiliani
- Department of Chemistry, Biology and Biotechnology, Biochemistry and Molecular Biology Section, University of Perugia, Via del Giochetto, 06126 Perugia, Italy
- Centro di Eccellenza sui Materiali Innovativi Nanostrutturati (CEMIN), University of Perugia, Via del Giochetto, 06126 Perugia, Italy
| | - Eleonora Calzoni
- Department of Chemistry, Biology and Biotechnology, Biochemistry and Molecular Biology Section, University of Perugia, Via del Giochetto, 06126 Perugia, Italy
- Centro di Eccellenza sui Materiali Innovativi Nanostrutturati (CEMIN), University of Perugia, Via del Giochetto, 06126 Perugia, Italy
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Cesaretti A, Cai Z, Kim J, Kim H, Lei Y, Carlotti B. Dual−State Emission and Two−Photon Absorption Tuned by Benzonitrile Substitution in 2,3,4,5−Tetraphenyl−1H−Pyrrole. CHEMPHOTOCHEM 2023. [DOI: 10.1002/cptc.202300040] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/12/2023]
Affiliation(s)
- Alessio Cesaretti
- University of Perugia: Universita degli Studi di Perugia Department of Chemistry, Biology and Biotechnology Perugia ITALY
| | - Zhengxu Cai
- Beijing Institute of Technology School of Materials Science and Engineering Beijing CHINA
| | - Junseok Kim
- Incheon National University Research Institute of Basic Science KOREA, REPUBLIC OF
| | - Hyungjun Kim
- Incheon National University Research Institute of Basic Science Incheon KOREA, REPUBLIC OF
| | - Yunxiang Lei
- Wenzhou University School of Chemistry and Materials Engineering Wenzhou CHINA
| | - Benedetta Carlotti
- University of Perugia: Universita degli Studi di Perugia Department of Chemistry, Biology and Biotechnology via Elce di Sotto, n.8 06123 Perugia ITALY
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Cesaretti A, Calzoni E, Montegiove N, Bianconi T, Alebardi M, La Serra MA, Consiglio G, Fortuna CG, Elisei F, Spalletti A. Lighting-Up the Far-Red Fluorescence of RNA-Selective Dyes by Switching from Ortho to Para Position. Int J Mol Sci 2023; 24:ijms24054812. [PMID: 36902248 PMCID: PMC10003335 DOI: 10.3390/ijms24054812] [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: 12/24/2022] [Revised: 02/13/2023] [Accepted: 02/15/2023] [Indexed: 03/06/2023] Open
Abstract
Fluorescence imaging is constantly searching for new far-red emitting probes whose turn-on response is selective upon the interaction with specific biological targets. Cationic push-pull dyes could indeed respond to these requirements due to their intramolecular charge transfer (ICT) character, by which their optical properties can be tuned, and their ability to interact strongly with nucleic acids. Starting from the intriguing results recently achieved with some push-pull dimethylamino-phenyl dyes, two isomers obtained by switching the cationic electron acceptor head (either a methylpyridinium or a methylquinolinium) from the ortho to the para position have been scrutinized for their ICT dynamics, their affinity towards DNA and RNA, and in vitro behavior. By exploiting the marked fluorescence enhancement observed upon complexation with polynucleotides, fluorimetric titrations were employed to evaluate the dyes' ability as efficient DNA/RNA binders. The studied compounds exhibited in vitro RNA-selectivity by localizing in the RNA-rich nucleoli and within the mitochondria, as demonstrated by fluorescence microscopy. The para-quinolinium derivative showed some modest antiproliferative effect on two tumor cell lines as well as improved properties as an RNA-selective far-red probe in terms of both turn-on response (100-fold fluorescence enhancement) and localized staining ability, attracting interest as a potential theranostic agent.
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Affiliation(s)
- Alessio Cesaretti
- Department of Chemistry, Biology and Biotechnology and Center of Excellence on Innovative Nanostructured Materials (CEMIN), University of Perugia, via Elce di Sotto 8, 06123 Perugia, Italy
- Correspondence:
| | - Eleonora Calzoni
- Department of Chemistry, Biology and Biotechnology and Center of Excellence on Innovative Nanostructured Materials (CEMIN), University of Perugia, via Elce di Sotto 8, 06123 Perugia, Italy
| | - Nicolò Montegiove
- Department of Chemistry, Biology and Biotechnology and Center of Excellence on Innovative Nanostructured Materials (CEMIN), University of Perugia, via Elce di Sotto 8, 06123 Perugia, Italy
| | - Tommaso Bianconi
- Department of Chemistry, Biology and Biotechnology and Center of Excellence on Innovative Nanostructured Materials (CEMIN), University of Perugia, via Elce di Sotto 8, 06123 Perugia, Italy
| | - Martina Alebardi
- Department of Chemistry, Biology and Biotechnology and Center of Excellence on Innovative Nanostructured Materials (CEMIN), University of Perugia, via Elce di Sotto 8, 06123 Perugia, Italy
| | - Maria Antonietta La Serra
- Department of Chemistry, Biology and Biotechnology and Center of Excellence on Innovative Nanostructured Materials (CEMIN), University of Perugia, via Elce di Sotto 8, 06123 Perugia, Italy
| | - Giuseppe Consiglio
- Department of Chemical Sciences, University of Catania, Viale Andrea Doria 6, 95125 Catania, Italy
| | - Cosimo Gianluca Fortuna
- Department of Chemical Sciences, University of Catania, Viale Andrea Doria 6, 95125 Catania, Italy
| | - Fausto Elisei
- Department of Chemistry, Biology and Biotechnology and Center of Excellence on Innovative Nanostructured Materials (CEMIN), University of Perugia, via Elce di Sotto 8, 06123 Perugia, Italy
| | - Anna Spalletti
- Department of Chemistry, Biology and Biotechnology and Center of Excellence on Innovative Nanostructured Materials (CEMIN), University of Perugia, via Elce di Sotto 8, 06123 Perugia, Italy
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Bianconi T, Cesaretti A, Mancini P, Montegiove N, Calzoni E, Ekbote A, Misra R, Carlotti B. Room-Temperature Phosphorescence and Cellular Phototoxicity Activated by Triplet Dynamics in Aggregates of Push-Pull Phenothiazine-Based Isomers. J Phys Chem B 2023; 127:1385-1398. [PMID: 36735941 PMCID: PMC9940226 DOI: 10.1021/acs.jpcb.2c07717] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
In this study, we report a comprehensive time-resolved spectroscopic investigation of the excited-state deactivation mechanism in three push-pull isomers characterized by a phenothiazine electron donor, a benzothiazole electron acceptor, and a phenyl π-bridge where the connection is realized at the relative ortho, meta, and para positions. Spin-orbit charge-transfer-induced intersystem crossing takes place with high yield in these all-organic donor-acceptor compounds, leading also to efficient production of singlet oxygen. Our spectroscopic results give clear evidence of room-temperature phosphorescence not only in solid-state host-guest matrices but also in highly biocompatible aggregates of these isomers produced in water dispersions, as rarely reported in the literature. Moreover, aggregates of the isomers could be internalized by lung cancer and melanoma cells and display bright luminescence without any dark cytotoxic effect. On the other hand, the isomers showed significant cellular phototoxicity against the tumor cells due to light-induced reactive oxygen species generation. Our findings strongly suggest that nanoaggregates of the investigated isomers are promising candidates for imaging-guided photodynamic therapy.
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Affiliation(s)
- Tommaso Bianconi
- Department of Chemistry, Biology and Biotechnology, University of Perugia, via Elce di Sotto 8, 06123 Perugia, Italy
| | - Alessio Cesaretti
- Department of Chemistry, Biology and Biotechnology, University of Perugia, via Elce di Sotto 8, 06123 Perugia, Italy
| | - Pietro Mancini
- Department of Chemistry, Biology and Biotechnology, University of Perugia, via Elce di Sotto 8, 06123 Perugia, Italy
| | - Nicolò Montegiove
- Department of Chemistry, Biology and Biotechnology, University of Perugia, via Elce di Sotto 8, 06123 Perugia, Italy
| | - Eleonora Calzoni
- Department of Chemistry, Biology and Biotechnology, University of Perugia, via Elce di Sotto 8, 06123 Perugia, Italy
| | - Anupama Ekbote
- Department of Chemistry, Indian Institute of Technology Indore, Indore 453552, India
| | - Rajneesh Misra
- Department of Chemistry, Indian Institute of Technology Indore, Indore 453552, India
| | - Benedetta Carlotti
- Department of Chemistry, Biology and Biotechnology, University of Perugia, via Elce di Sotto 8, 06123 Perugia, Italy
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Montegiove N, Calzoni E, Pelosi D, Gammaitoni L, Barelli L, Emiliani C, Di Michele A, Cesaretti A. Optimizing Covalent Immobilization of Glucose Oxidase and Laccase on PV15 Fluoropolymer-Based Bioelectrodes. J Funct Biomater 2022; 13:jfb13040270. [PMID: 36547530 PMCID: PMC9785612 DOI: 10.3390/jfb13040270] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2022] [Revised: 11/16/2022] [Accepted: 11/29/2022] [Indexed: 12/03/2022] Open
Abstract
Enzymatic biofuel cells (EBCs) represent a promising technology for biosensors, biodevices, and sustainable green energy applications, thanks to enzymes' high specificity and catalytic efficiency. Nevertheless, drawbacks such as limited output power and short lifetime have to be solved. Nowadays, research is addressed to the use of 3D electrode structures, but the high cost and the industrialization difficulties of such electrodes represent a key issue. The purpose of the paper is thus to describe the use of a low-cost commercial conductive polymer (Sigracell® PV15) as support for the covalent immobilization of glucose oxidase and laccase, for bioanode and biocathode fabrication, respectively. Efficient immobilization protocols were determined for the immobilized enzymes in terms of employed linkers and enzyme concentrations, resulting in significant enzymatic activities for units of area. The analysis focuses specifically on the optimization of the challenging immobilization of laccase and assessing its stability over time. In particular, an optimum activity of 23 mU/cm2 was found by immobilizing 0.18 mg/cm2 of laccase, allowing better performances, as for voltage output and electrochemical stability, and a direct electron transfer mechanism to be revealed for the fabricated biocathode. This study thus poses the basis for the viable development of low-cost functional EBC devices for biomedical applications.
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Affiliation(s)
- Nicolò Montegiove
- Department of Chemistry, Biology and Biotechnology, University of Perugia, Via del Giochetto, 06123 Perugia, Italy
| | - Eleonora Calzoni
- Department of Chemistry, Biology and Biotechnology, University of Perugia, Via del Giochetto, 06123 Perugia, Italy
- Centro di Eccellenza sui Materiali Innovativi Nanostrutturati (CEMIN), University of Perugia, Via Elce di Sotto 8, 06123 Perugia, Italy
| | - Dario Pelosi
- Department of Engineering, University of Perugia, Via G. Duranti 93, 06125 Perugia, Italy
| | - Luca Gammaitoni
- Department of Physics and Geology, University of Perugia, Via Pascoli, 06123 Perugia, Italy
| | - Linda Barelli
- Department of Engineering, University of Perugia, Via G. Duranti 93, 06125 Perugia, Italy
| | - Carla Emiliani
- Department of Chemistry, Biology and Biotechnology, University of Perugia, Via del Giochetto, 06123 Perugia, Italy
- Centro di Eccellenza sui Materiali Innovativi Nanostrutturati (CEMIN), University of Perugia, Via Elce di Sotto 8, 06123 Perugia, Italy
| | - Alessandro Di Michele
- Department of Physics and Geology, University of Perugia, Via Pascoli, 06123 Perugia, Italy
| | - Alessio Cesaretti
- Department of Chemistry, Biology and Biotechnology, University of Perugia, Via del Giochetto, 06123 Perugia, Italy
- Centro di Eccellenza sui Materiali Innovativi Nanostrutturati (CEMIN), University of Perugia, Via Elce di Sotto 8, 06123 Perugia, Italy
- Correspondence: ; Tel.: +39-075-5857436
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Montegiove N, Calzoni E, Emiliani C, Cesaretti A. Biopolymer Nanoparticles for Nose-to-Brain Drug Delivery: A New Promising Approach for the Treatment of Neurological Diseases. J Funct Biomater 2022; 13:jfb13030125. [PMID: 36135560 PMCID: PMC9504125 DOI: 10.3390/jfb13030125] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2022] [Revised: 08/16/2022] [Accepted: 08/20/2022] [Indexed: 12/12/2022] Open
Abstract
Diseases affecting the central nervous system (CNS) are among the most disabling and the most difficult to cure due to the presence of the blood–brain barrier (BBB) which represents an impediment from a therapeutic and diagnostic point of view as it limits the entry of most drugs. The use of biocompatible polymer nanoparticles (NPs) as vehicles for targeted drug delivery to the brain arouses increasing interest. However, the route of administration of these vectors remains critical as the drug must be delivered without being degraded to achieve a therapeutic effect. An innovative approach for the administration of drugs to the brain using polymeric carriers is represented by the nose-to-brain (NtB) route which involves the administration of the therapeutic molecule through the neuro-olfactory epithelium of the nasal mucosa. Nasal administration is a non-invasive approach that allows the rapid transport of the drug directly to the brain and minimizes its systemic exposure. To date, many studies involve the use of polymer NPs for the NtB transport of drugs to the brain for the treatment of a whole series of disabling neurological diseases for which, as of today, there is no cure. In this review, various types of biodegradable polymer NPs for drug delivery to the brain through the NtB route are discussed and particular attention is devoted to the treatment of neurological diseases such as Glioblastoma and neurodegenerative diseases.
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Affiliation(s)
- Nicolò Montegiove
- Department of Chemistry, Biology and Biotechnology, Biochemistry and Molecular Biology Section, University of Perugia, Via del Giochetto, 06123 Perugia, Italy
| | - Eleonora Calzoni
- Department of Chemistry, Biology and Biotechnology, Biochemistry and Molecular Biology Section, University of Perugia, Via del Giochetto, 06123 Perugia, Italy
- Correspondence:
| | - Carla Emiliani
- Department of Chemistry, Biology and Biotechnology, Biochemistry and Molecular Biology Section, University of Perugia, Via del Giochetto, 06123 Perugia, Italy
- Centro di Eccellenza sui Materiali Innovativi Nanostrutturati (CEMIN), University of Perugia, Via del Giochetto, 06123 Perugia, Italy
| | - Alessio Cesaretti
- Department of Chemistry, Biology and Biotechnology, Biochemistry and Molecular Biology Section, University of Perugia, Via del Giochetto, 06123 Perugia, Italy
- Centro di Eccellenza sui Materiali Innovativi Nanostrutturati (CEMIN), University of Perugia, Via del Giochetto, 06123 Perugia, Italy
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8
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Montegiove N, Calzoni E, Cesaretti A, Pellegrino RM, Emiliani C, Pellegrino A, Leonardi L. The Hard Choice about Dry Pet Food: Comparison of Protein and Lipid Nutritional Qualities and Digestibility of Three Different Chicken-Based Formulations. Animals (Basel) 2022; 12:ani12121538. [PMID: 35739874 PMCID: PMC9219525 DOI: 10.3390/ani12121538] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2022] [Revised: 06/08/2022] [Accepted: 06/10/2022] [Indexed: 12/02/2022] Open
Abstract
Simple Summary The majority of pet food currently on the market is represented by dry food thanks to its practicality and long shelf life. Dry pet food production consists of several processes that can have different effects on nutrient bioavailability and digestibility. The aim of this study was to analyze the nutritional quality of three different chicken-based formulations, consisting of fresh meats, meat meals, or a mix of these two from a protein, lipid, and in vitro digestibility point of view. The results show that the fresh chicken-meat-based formulation appears to be the preferable choice when proteins, lipids, and in vitro digestibility are taken into account. Moreover, the soluble protein content estimated by the Bradford assay is found to correlate well with the total protein content and in vitro digestibility. Abstract Dry pet food, made of fresh meats and especially meat meals, represents one of the main types of complete food available on the market by virtue of its practicality and long shelf life. The kibble production process includes mixed thermal and mechanical treatments that help to improve the palatability and durability of the final product but may have undesirable effects on nutrient bioavailability and digestibility. An analysis of the protein and lipid content of different dry pet food formulations, together with an in vitro digestibility analysis, can reveal which formulation can provide a more nourishing diet for pets. In this study, a quantitative and qualitative analysis was performed on three different formulations of chicken-based dry pet food, consisting of fresh meats, meat meals, or a mix of these two. The soluble protein concentration was determined by the Bradford assay, while the crude protein content was assessed through the Kjeldahl method. Quadrupole time-of-flight liquid chromatography/mass spectrometry (Q-TOF LC/MS) was used to analyze the amino acid (AA) and lipid compositions. Finally, a gastric and small intestinal digestion simulation was used to determine the in vitro digestibility. The results show that dry pet food consisting only of chicken fresh meats has the highest content of soluble protein; it also contains more Essential AAs, Branched-Chain AAs, and Taurine, as well as a greater quantity of monounsaturated and polyunsaturated fatty acids. In addition, its in vitro digestibility was the highest, exceeding 90% of its dry weight, in agreement with the soluble protein content. These findings thus make the fresh-meat-based formulation a preferable choice as dry pet food.
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Affiliation(s)
- Nicolò Montegiove
- Department of Chemistry, Biology and Biotechnology, Biochemistry and Molecular Biology Section, University of Perugia, Via del Giochetto, 06123 Perugia, Italy; (E.C.); (A.C.); (R.M.P.); (C.E.)
- Correspondence:
| | - Eleonora Calzoni
- Department of Chemistry, Biology and Biotechnology, Biochemistry and Molecular Biology Section, University of Perugia, Via del Giochetto, 06123 Perugia, Italy; (E.C.); (A.C.); (R.M.P.); (C.E.)
| | - Alessio Cesaretti
- Department of Chemistry, Biology and Biotechnology, Biochemistry and Molecular Biology Section, University of Perugia, Via del Giochetto, 06123 Perugia, Italy; (E.C.); (A.C.); (R.M.P.); (C.E.)
- Centro di Eccellenza sui Materiali Innovativi Nanostrutturati (CEMIN), University of Perugia, Via del Giochetto, 06123 Perugia, Italy
| | - Roberto Maria Pellegrino
- Department of Chemistry, Biology and Biotechnology, Biochemistry and Molecular Biology Section, University of Perugia, Via del Giochetto, 06123 Perugia, Italy; (E.C.); (A.C.); (R.M.P.); (C.E.)
| | - Carla Emiliani
- Department of Chemistry, Biology and Biotechnology, Biochemistry and Molecular Biology Section, University of Perugia, Via del Giochetto, 06123 Perugia, Italy; (E.C.); (A.C.); (R.M.P.); (C.E.)
- Centro di Eccellenza sui Materiali Innovativi Nanostrutturati (CEMIN), University of Perugia, Via del Giochetto, 06123 Perugia, Italy
| | | | - Leonardo Leonardi
- Department of Veterinary Medicine, University of Perugia, Via San Costanzo 4, 06126 Perugia, Italy;
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Cesaretti A, Mencaroni L, Bonaccorso C, Botti V, Calzoni E, Carlotti B, Fortuna CG, Montegiove N, Spalletti A, Elisei F. Amphiphilicity-Controlled Localization of Red Emitting Bicationic Fluorophores in Tumor Cells Acting as Bio-Probes and Anticancer Drugs. Molecules 2022; 27:molecules27123713. [PMID: 35744843 PMCID: PMC9230006 DOI: 10.3390/molecules27123713] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/13/2022] [Revised: 06/04/2022] [Accepted: 06/07/2022] [Indexed: 11/16/2022]
Abstract
Small organic molecules arouse lively interest for their plethora of possible biological applications, such as anticancer therapy, for their ability to interact with nucleic acids, or bioimaging, thanks to their fluorescence emission. Here, a panchromatic series of styryl-azinium bicationic dyes, which have already proved to exhibit high water-solubility and significant red fluorescence in water, were investigated through spectrofluorimetric titrations to assess the extent of their association constants with DNA and RNA. Femtosecond-resolved transient absorption spectroscopy was also employed to characterize the changes in the photophysical properties of these fluorophores upon interaction with their biological targets. Finally, in vitro experiments conducted on tumor cell lines revealed that some of the bicationic fluorophores had a peculiar localization within cell nuclei exerting important antiproliferative effects, others were instead found to localize in the cytoplasm without leading to cell death, being useful to mark specific organelles in light of live cell bioimaging. Interestingly, this molecule-dependent behavior matched the different amphiphilicity featured by these bioactive compounds, which are thus expected to be caught in a tug-of-war between lipophilicity, ensured by the presence of aromatic rings and needed to pass cell membranes, and hydrophilicity, granted by charged groups and necessary for stability in aqueous media.
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Affiliation(s)
- Alessio Cesaretti
- Department of Chemistry, Biology and Biotechnology and “Centro di Eccellenza Materiali Innovativi Nanostrutturati” (CEMIN), University of Perugia, Via Elce di Sotto 8, 06123 Perugia, Italy; (A.C.); (V.B.); (E.C.); (B.C.); (N.M.); (A.S.); (F.E.)
| | - Letizia Mencaroni
- Department of Chemistry, Biology and Biotechnology and “Centro di Eccellenza Materiali Innovativi Nanostrutturati” (CEMIN), University of Perugia, Via Elce di Sotto 8, 06123 Perugia, Italy; (A.C.); (V.B.); (E.C.); (B.C.); (N.M.); (A.S.); (F.E.)
- Correspondence: ; Tel.: +39-075-585-5590
| | - Carmela Bonaccorso
- Department of Chemical Sciences, University of Catania, Viale Andrea Doria 6, 95125 Catania, Italy; (C.B.); (C.G.F.)
| | - Valentina Botti
- Department of Chemistry, Biology and Biotechnology and “Centro di Eccellenza Materiali Innovativi Nanostrutturati” (CEMIN), University of Perugia, Via Elce di Sotto 8, 06123 Perugia, Italy; (A.C.); (V.B.); (E.C.); (B.C.); (N.M.); (A.S.); (F.E.)
| | - Eleonora Calzoni
- Department of Chemistry, Biology and Biotechnology and “Centro di Eccellenza Materiali Innovativi Nanostrutturati” (CEMIN), University of Perugia, Via Elce di Sotto 8, 06123 Perugia, Italy; (A.C.); (V.B.); (E.C.); (B.C.); (N.M.); (A.S.); (F.E.)
| | - Benedetta Carlotti
- Department of Chemistry, Biology and Biotechnology and “Centro di Eccellenza Materiali Innovativi Nanostrutturati” (CEMIN), University of Perugia, Via Elce di Sotto 8, 06123 Perugia, Italy; (A.C.); (V.B.); (E.C.); (B.C.); (N.M.); (A.S.); (F.E.)
| | - Cosimo Gianluca Fortuna
- Department of Chemical Sciences, University of Catania, Viale Andrea Doria 6, 95125 Catania, Italy; (C.B.); (C.G.F.)
| | - Nicolò Montegiove
- Department of Chemistry, Biology and Biotechnology and “Centro di Eccellenza Materiali Innovativi Nanostrutturati” (CEMIN), University of Perugia, Via Elce di Sotto 8, 06123 Perugia, Italy; (A.C.); (V.B.); (E.C.); (B.C.); (N.M.); (A.S.); (F.E.)
| | - Anna Spalletti
- Department of Chemistry, Biology and Biotechnology and “Centro di Eccellenza Materiali Innovativi Nanostrutturati” (CEMIN), University of Perugia, Via Elce di Sotto 8, 06123 Perugia, Italy; (A.C.); (V.B.); (E.C.); (B.C.); (N.M.); (A.S.); (F.E.)
| | - Fausto Elisei
- Department of Chemistry, Biology and Biotechnology and “Centro di Eccellenza Materiali Innovativi Nanostrutturati” (CEMIN), University of Perugia, Via Elce di Sotto 8, 06123 Perugia, Italy; (A.C.); (V.B.); (E.C.); (B.C.); (N.M.); (A.S.); (F.E.)
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Calzoni E, Cesaretti A, Montegiove N, Di Michele A, Pellegrino RM, Emiliani C. HexA-Enzyme Coated Polymer Nanoparticles for the Development of a Drug-Delivery System in the Treatment of Sandhoff Lysosomal Storage Disease. J Funct Biomater 2022; 13:jfb13020037. [PMID: 35466219 PMCID: PMC9036261 DOI: 10.3390/jfb13020037] [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] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2022] [Revised: 03/28/2022] [Accepted: 03/30/2022] [Indexed: 01/20/2023] Open
Abstract
Lysosomal storage disorders (LSDs) are a set of metabolic diseases caused by mutations in genes that are in charge of the production of lysosomal enzymes, resulting in the buildup of non-degraded substrates and the consequent systemic damage that mainly involves the Central Nervous System (CNS). One of the most widely used and studied treatments is Enzyme Replacement Therapy, which is based on the administration of the recombinant deficient enzyme. This strategy has often proved fallacious due to the enzyme instability in body fluids and its inability to reach adequate levels in the CNS. In this work, we developed a system based on nanotechnology that allows a stable enzyme to be obtained by its covalent immobilization on nanoparticles (NPs) of polylactic acid, subsequently administered to a cellular model of LSDs, i.e., Sandhoff disease, caused by the absence or deficiency of the β-d-N-acetyl-hexosaminidase A (HexA) enzyme. The HexA enzymes, loaded onto the polymeric NPs through an immobilization procedure that has already been investigated and validated, were found to be stable over time, maintain optimal kinetic parameters, be able to permeate the plasma membrane, hydrolyze HexA’s natural substrate, and restore enzyme activity close to the levels of healthy cells. These results thus lay the foundation for testing the HexA-NPs in animal models of the disease and thus obtaining an efficient drug-delivery system.
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Affiliation(s)
- Eleonora Calzoni
- Department of Chemistry, Biology and Biotechnology, University of Perugia, Via del Giochetto, 06123 Perugia, Italy; (E.C.); (N.M.); (R.M.P.); (C.E.)
| | - Alessio Cesaretti
- Department of Chemistry, Biology and Biotechnology, University of Perugia, Via del Giochetto, 06123 Perugia, Italy; (E.C.); (N.M.); (R.M.P.); (C.E.)
- Centro di Eccellenza sui Materiali Innovativi Nanostrutturati (CEMIN), University of Perugia, Via Elce di Sotto 8, 06123 Perugia, Italy
- Correspondence: ; Tel.: +39-075-585-7436
| | - Nicolò Montegiove
- Department of Chemistry, Biology and Biotechnology, University of Perugia, Via del Giochetto, 06123 Perugia, Italy; (E.C.); (N.M.); (R.M.P.); (C.E.)
| | - Alessandro Di Michele
- Department of Physics and Geology, University of Perugia, Via Pascoli, 06123 Perugia, Italy;
| | - Roberto Maria Pellegrino
- Department of Chemistry, Biology and Biotechnology, University of Perugia, Via del Giochetto, 06123 Perugia, Italy; (E.C.); (N.M.); (R.M.P.); (C.E.)
| | - Carla Emiliani
- Department of Chemistry, Biology and Biotechnology, University of Perugia, Via del Giochetto, 06123 Perugia, Italy; (E.C.); (N.M.); (R.M.P.); (C.E.)
- Centro di Eccellenza sui Materiali Innovativi Nanostrutturati (CEMIN), University of Perugia, Via Elce di Sotto 8, 06123 Perugia, Italy
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11
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Cesaretti A, Spalletti A, Elisei F, Foggi P, Germani R, Fortuna CG, Carlotti B. The role of twisting in driving excited-state symmetry breaking and enhanced two-photon absorption in quadrupolar cationic pyridinium derivatives. Phys Chem Chem Phys 2021; 23:16739-16753. [PMID: 34318828 DOI: 10.1039/d1cp01888d] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Two symmetric quadrupolar cationic push-pull compounds with a central electron-acceptor (N+-methylpyrydinium, A+) and different lateral electron-donors, (N,N-dimethylamino and N,N-diphenylamino, D) in a D-π-A+-π-D arrangement, were investigated together with their dipolar counterparts (D-π-A+) for their excited-state dynamics and NLO properties. As for the quadrupolar compounds, attention was focused on excited-state symmetry breaking (ESSB), which leads to a relaxed dipolar excited state. Both electron charge displacements and structural rearrangements were recognized in the excited-state dynamics of these molecules by resorting to femtosecond-resolved broadband fluorescence up-conversion experiments and advanced data analysis, used as a valuable alternative approach for fluorescent molecules compared to time-resolved IR spectroscopy, only suitable for compounds bearing IR markers. Specifically, intramolecular charge transfer (ICT) was found to be guided by ultrafast inertial solvation, while diffusive solvation can drive the twisting of lateral groups to originate twisted-ICT (TICT) states on a picosecond time scale. Yet still, only the bis-N,N-diphenylamino-substituted compound undergoes ESSB, in both highly and sparingly polar solvents, provided that it can experience large amplitude motions to a fully symmetry-broken TICT state. Besides well-known solvation effects, this structural requirement proved to be a necessary condition for these quadrupolar cations to undergo ESSB. In fact, a more efficient uncoupling between the out-of-plane D and A+ groups in the TICT state allows a greater stabilization gained through solvation, relative to the bis-N,N-dimethylamino-substituted derivative, which instead maintains its symmetry. This different behavior parallels the two-photon absorption (TPA) ability, which is greatly enhanced in the case of the bis-N,N-diphenylamino-substituted compound, paving the way for cutting-edge bio-imaging applications.
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Affiliation(s)
- Alessio Cesaretti
- Department of Chemistry, Biology and Biotechnology and Centro di Eccellenza sui Materiali Innovativi Nanostrutturati (CEMIN) University of Perugia, via Elce di Sotto 8, 06123 Perugia, Italy.
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12
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Tiecco M, Di Guida I, Gentili PL, Germani R, Bonaccorso C, Cesaretti A. Probing the structural features and the micro-heterogeneity of various deep eutectic solvents and their water dilutions by the photophysical behaviour of two fluorophores. J Mol Liq 2021. [DOI: 10.1016/j.molliq.2021.115718] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
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13
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Calzoni E, Cesaretti A, Montegiove N, Di Michele A, Emiliani C. Enhanced Stability of Long-Living Immobilized Recombinant β-d- N-Acetyl-Hexosaminidase A on Polylactic Acid (PLA) Films for Potential Biomedical Applications. J Funct Biomater 2021; 12:jfb12020032. [PMID: 34064736 PMCID: PMC8162980 DOI: 10.3390/jfb12020032] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2021] [Revised: 04/27/2021] [Accepted: 05/06/2021] [Indexed: 01/24/2023] Open
Abstract
β-d-N-acetyl-hexosaminidase (Hex, EC 3.2.1.52) is an acid hydrolase that catalyzes the cleavage of the β-1,4 bond in N-acetyl-d-galactosamine (Gal-NAc) and N-acetyl-d-glucosamine (Glc-NAc) from the non-reducing end of oligosaccharides and glycoconjugates. It is widely expressed in both the prokaryotic and eukaryotic world, where it performs multiple and important functions. Hex has antifungal activity in plants, is capable of degrading many biological substrates, and can play an important role in the biomedical field for the treatment of Tay-Sachs and Sandhoff diseases. With the aim being able to obtain a device with a stable enzyme, a method of covalent immobilization on polylactic acid (PLA) films was developed for the A isoform of the β-d-N-acetyl-hexosaminidase enzyme (HexA), produced in a recombinant way from Human Embryonic Kidney-293 (HEK-293) cells and suitably purified. An in-depth biochemical characterization of the immobilized enzyme was carried out, evaluating the optimal temperature, thermal stability, pH parameters, and Km value. Moreover, the stability of the enzymatic activity over time was assessed. The results obtained showed an improvement in terms of kinetic parameters and stability to heat for the enzyme following immobilization and the presence of HexA in two distinct immobilized forms, with an unexpected ability for one of them to maintain its functionality for a long period of time (over a year). The stability and functionality of the enzyme in its immobilized form are therefore extremely promising for potential biotechnological and biomedical applications.
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Affiliation(s)
- Eleonora Calzoni
- Department of Chemistry, Biology and Biotechnology, University of Perugia, 06123 Perugia, Italy; (E.C.); (N.M.); (C.E.)
| | - Alessio Cesaretti
- Department of Chemistry, Biology and Biotechnology, University of Perugia, 06123 Perugia, Italy; (E.C.); (N.M.); (C.E.)
- Center of Excellence on Innovative Nanostructured Materials—CEMIN, University of Perugia, 06123 Perugia, Italy
- Correspondence: ; Tel.: +39-075-585-7436
| | - Nicolò Montegiove
- Department of Chemistry, Biology and Biotechnology, University of Perugia, 06123 Perugia, Italy; (E.C.); (N.M.); (C.E.)
| | | | - Carla Emiliani
- Department of Chemistry, Biology and Biotechnology, University of Perugia, 06123 Perugia, Italy; (E.C.); (N.M.); (C.E.)
- Center of Excellence on Innovative Nanostructured Materials—CEMIN, University of Perugia, 06123 Perugia, Italy
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14
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Botti V, Urbanelli L, Sagini K, Tarpani L, Cesaretti A, Fortuna CG, Elisei F. Quaternized styryl-azinium fluorophores as cellular RNA-binders. Photochem Photobiol Sci 2020; 19:362-370. [PMID: 32147676 DOI: 10.1039/c9pp00465c] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The capability of three quaternized styryl-azinium iodides to bind cellular RNA has been tested by means of Fluorescence Confocal Microscopy imaging of stained MCF-7 cells treated with RNase. Their association constants have been estimated through spectrophotometric and fluorimetric titrations with tRNA and compared to their affinity toward DNA. Transient absorption spectroscopy with femtosecond resolution confirmed the binding of the investigated compounds with tRNA and shed new light on the excited state dynamics of their complexes, by revealing a significant lengthening of the lifetime of S1 upon complexation, which parallels the fluorescence quantum yield enhancement.
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Affiliation(s)
- Valentina Botti
- Department of Chemistry, Biology and Biotechnology and Center of Excellence on Innovative Nanostructured Materials (CEMIN), University of Perugia, via Elce di Sotto 8, 06123, Perugia, Italy.
| | - Lorena Urbanelli
- Department of Chemistry, Biology and Biotechnology, University of Perugia, via del Giochetto, 06126, Perugia, Italy
| | - Krizia Sagini
- Department of Chemistry, Biology and Biotechnology, University of Perugia, via del Giochetto, 06126, Perugia, Italy
| | - Luigi Tarpani
- Department of Chemistry, Biology and Biotechnology and Center of Excellence on Innovative Nanostructured Materials (CEMIN), University of Perugia, via Elce di Sotto 8, 06123, Perugia, Italy
| | - Alessio Cesaretti
- Department of Chemistry, Biology and Biotechnology and Center of Excellence on Innovative Nanostructured Materials (CEMIN), University of Perugia, via Elce di Sotto 8, 06123, Perugia, Italy
| | - Cosimo G Fortuna
- Department of Chemical Sciences, University of Catania, viale Andrea Doria 6, 95125, Catania, Italy
| | - Fausto Elisei
- Department of Chemistry, Biology and Biotechnology and Center of Excellence on Innovative Nanostructured Materials (CEMIN), University of Perugia, via Elce di Sotto 8, 06123, Perugia, Italy
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15
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Mencaroni L, Carlotti B, Cesaretti A, Elisei F, Grgičević A, Škorić I, Spalletti A. Competition between fluorescence and triplet production ruled by nitro groups in one-arm and two-arm styrylbenzene heteroanalogues. Photochem Photobiol Sci 2020; 19:1665-1676. [DOI: 10.1039/d0pp00271b] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
One-arm nitro-stilbenoids shows high triplet yield, appealing for optoelectronic and photovoltaic devices while double-arm analogues, showing appreciable TPA, are candidates as emitting probes and traceable photosensitizers for photodynamic therapy.
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Affiliation(s)
- Letizia Mencaroni
- Department of Chemistry
- Biology and Biotechnology and “Centro di Eccellenza Materiali Innovativi Nanostrutturati” (CEMIN) University of Perugia
- Perugia
- Italy
| | - Benedetta Carlotti
- Department of Chemistry
- Biology and Biotechnology and “Centro di Eccellenza Materiali Innovativi Nanostrutturati” (CEMIN) University of Perugia
- Perugia
- Italy
| | - Alessio Cesaretti
- Department of Chemistry
- Biology and Biotechnology and “Centro di Eccellenza Materiali Innovativi Nanostrutturati” (CEMIN) University of Perugia
- Perugia
- Italy
| | - Fausto Elisei
- Department of Chemistry
- Biology and Biotechnology and “Centro di Eccellenza Materiali Innovativi Nanostrutturati” (CEMIN) University of Perugia
- Perugia
- Italy
| | - Ana Grgičević
- Department of Organic Chemistry
- Faculty of Chemical Engineering and Technology
- University of Zagreb
- Zagreb
- Croatia
| | - Irena Škorić
- Department of Organic Chemistry
- Faculty of Chemical Engineering and Technology
- University of Zagreb
- Zagreb
- Croatia
| | - Anna Spalletti
- Department of Chemistry
- Biology and Biotechnology and “Centro di Eccellenza Materiali Innovativi Nanostrutturati” (CEMIN) University of Perugia
- Perugia
- Italy
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16
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Botti V, Cesaretti A, Ban Ž, Crnolatac I, Consiglio G, Elisei F, Piantanida I. Fine structural tuning of styryl-based dyes for fluorescence and CD-based sensing of various ds-DNA/RNA sequences. Org Biomol Chem 2019; 17:8243-8258. [PMID: 31464340 DOI: 10.1039/c9ob01186b] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A set of styryl- and bis-styryl dyes, varying in length, aromatic surface, net positive charge and steric positioning or bulkiness of substituents, was tested for interactions with various ds-DNA or ds-RNA. Most of the compounds showed strong affinity toward ds-DNA/RNA, directly correlated to the synergistic contribution of the aromatic-conjugated surface and net positive charge. The volume or positioning of terminal aromatic substituents directly controlled the binding mode of the core structure, shifting between DNA/RNA groove binding or DNA/RNA intercalation. Consequently, upon binding to DNA/RNA the fluorimetric and induced CD (ICD) response varied for different compounds, for instance one derivative showed specific fluorescence increase with AT-DNA, while another derivative showed specific ICD response with AU-RNA. Preliminary screening on human tumour cell lines revealed an efficient cellular uptake for all dyes. Only mono-styryl-quinoline derivatives showed a strong antiproliferative activity combined with efficient fluorescent localisation, thus showing promising theragnostic potential, while other compounds were negligibly cytotoxic but still efficient fluorescent markers of cytoplasmic organelles.
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Affiliation(s)
- Valentina Botti
- Department of Chemistry, Biology and Biotechnology and Centro di Eccellenza sui Materiali Innovativi Nanostrutturati (CEMIN) University of Perugia, via Elce di Sotto 8, 06123 Perugia, Italy.
| | - Alessio Cesaretti
- Department of Chemistry, Biology and Biotechnology and Centro di Eccellenza sui Materiali Innovativi Nanostrutturati (CEMIN) University of Perugia, via Elce di Sotto 8, 06123 Perugia, Italy.
| | - Željka Ban
- Division of Organic Chemistry & Biochemistry, Ruđer Bošković Institute, Bijenička cesta 54, 10002 Zagreb, Croatia.
| | - Ivo Crnolatac
- Division of Organic Chemistry & Biochemistry, Ruđer Bošković Institute, Bijenička cesta 54, 10002 Zagreb, Croatia.
| | - Giuseppe Consiglio
- Department of Chemical Sciences, University of Catania, viale Andrea Doria 6, 95125 Catania, Italy
| | - Fausto Elisei
- Department of Chemistry, Biology and Biotechnology and Centro di Eccellenza sui Materiali Innovativi Nanostrutturati (CEMIN) University of Perugia, via Elce di Sotto 8, 06123 Perugia, Italy.
| | - Ivo Piantanida
- Division of Organic Chemistry & Biochemistry, Ruđer Bošković Institute, Bijenička cesta 54, 10002 Zagreb, Croatia.
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17
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Calzoni E, Cesaretti A, Polchi A, Di Michele A, Tancini B, Emiliani C. Biocompatible Polymer Nanoparticles for Drug Delivery Applications in Cancer and Neurodegenerative Disorder Therapies. J Funct Biomater 2019; 10:jfb10010004. [PMID: 30626094 PMCID: PMC6463038 DOI: 10.3390/jfb10010004] [Citation(s) in RCA: 196] [Impact Index Per Article: 39.2] [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: 10/31/2018] [Revised: 12/20/2018] [Accepted: 12/28/2018] [Indexed: 12/19/2022] Open
Abstract
Polymer nanoparticles (NPs) represent one of the most innovative non-invasive approaches for drug delivery applications. NPs main objective is to convey the therapeutic molecule be they drugs, proteins, or nucleic acids directly into the target organ or tissue. Many polymers are used for the synthesis of NPs and among the currently most employed materials several biocompatible synthetic polymers, namely polylactic acid (PLA), poly lactic-co-glycolic acid (PLGA), and polyethylene glycol (PEG), can be cited. These molecules are made of simple monomers which are naturally present in the body and therefore easily excreted without being toxic. The present review addresses the different approaches that are most commonly adopted to synthetize biocompatible NPs to date, as well as the experimental strategies designed to load them with therapeutic agents. In fact, drugs may be internalized in the NPs or physically dispersed therein. In this paper the various types of biodegradable polymer NPs will be discussed with emphasis on their applications in drug delivery. Close attention will be devoted to the treatment of cancer, where both active and passive targeting is used to enhance efficacy and reduce systemic toxicity, and to diseases affecting the central nervous system, inasmuch as NPs can be modified to target specific cells or cross membrane barriers.
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Affiliation(s)
- Eleonora Calzoni
- Department of Chemistry, Biology and Biotechnology, Biochemistry and Molecular Biology Section, University of Perugia, Via del Giochetto, 06123 Perugia, Italy.
- Centro di Eccellenza su Materiali Innovativi Nanostrutturati (CEMIN), University of Perugia, Via del Giochetto, 06123 Perugia, Italy.
| | - Alessio Cesaretti
- Department of Chemistry, Biology and Biotechnology, Biochemistry and Molecular Biology Section, University of Perugia, Via del Giochetto, 06123 Perugia, Italy.
- Centro di Eccellenza su Materiali Innovativi Nanostrutturati (CEMIN), University of Perugia, Via del Giochetto, 06123 Perugia, Italy.
| | - Alice Polchi
- Department of Chemistry, Biology and Biotechnology, Biochemistry and Molecular Biology Section, University of Perugia, Via del Giochetto, 06123 Perugia, Italy.
- Centro di Eccellenza su Materiali Innovativi Nanostrutturati (CEMIN), University of Perugia, Via del Giochetto, 06123 Perugia, Italy.
| | - Alessandro Di Michele
- Department of Physics and Geology, University of Perugia, via Pascoli, 06123 Perugia, Italy.
| | - Brunella Tancini
- Department of Chemistry, Biology and Biotechnology, Biochemistry and Molecular Biology Section, University of Perugia, Via del Giochetto, 06123 Perugia, Italy.
- Centro di Eccellenza su Materiali Innovativi Nanostrutturati (CEMIN), University of Perugia, Via del Giochetto, 06123 Perugia, Italy.
| | - Carla Emiliani
- Department of Chemistry, Biology and Biotechnology, Biochemistry and Molecular Biology Section, University of Perugia, Via del Giochetto, 06123 Perugia, Italy.
- Centro di Eccellenza su Materiali Innovativi Nanostrutturati (CEMIN), University of Perugia, Via del Giochetto, 06123 Perugia, Italy.
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18
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Carlotti B, Cesaretti A, Cacioppa G, Elisei F, Odak I, Škorić I, Spalletti A. Fluorosolvatochromism and hyperpolarizability of one-arm and two-arms nitro-compounds bearing heterocyclic rings. J Photochem Photobiol A Chem 2019. [DOI: 10.1016/j.jphotochem.2018.09.043] [Citation(s) in RCA: 11] [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] [Indexed: 10/28/2022]
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Cesaretti A, Carlotti B, Elisei F, Spalletti A. Effect of the size of polycyclic aryl groups on the competition between adiabatic/diabatic photoisomerization mechanisms of cis-styrylarenes. Photochem Photobiol Sci 2019; 18:2125-2135. [DOI: 10.1039/c9pp00009g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Adiabatic photoisomerization from 1Z* to 1E* has been experimentally evidenced for several styrylarenes. Its weight on the overall cis–trans photoisomerization has been found to increase upon increasing the chromophore size.
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Affiliation(s)
- A. Cesaretti
- Department of Chemistry
- Biology and Biotechnology and Centro di Eccellenza sui Materiali Innovativi Nanostrutturati (CEMIN)
- University of Perugia
- 06123 Perugia
- Italy
| | - B. Carlotti
- Department of Chemistry
- Biology and Biotechnology and Centro di Eccellenza sui Materiali Innovativi Nanostrutturati (CEMIN)
- University of Perugia
- 06123 Perugia
- Italy
| | - F. Elisei
- Department of Chemistry
- Biology and Biotechnology and Centro di Eccellenza sui Materiali Innovativi Nanostrutturati (CEMIN)
- University of Perugia
- 06123 Perugia
- Italy
| | - A. Spalletti
- Department of Chemistry
- Biology and Biotechnology and Centro di Eccellenza sui Materiali Innovativi Nanostrutturati (CEMIN)
- University of Perugia
- 06123 Perugia
- Italy
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20
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Cesaretti A, Bonaccorso C, Elisei F, Fortuna CG, Mencaroni L, Spalletti A. Photoinduced Intramolecular Charge Transfer and Hyperpolarizability Coefficient in Push-Pull Pyridinium Salts with Increasing Strength of the Acceptor Group. Chempluschem 2018; 83:1021-1031. [DOI: 10.1002/cplu.201800393] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2018] [Indexed: 12/12/2022]
Affiliation(s)
- Alessio Cesaretti
- Department of Chemistry Biology and Biotechnology; and Centro di Eccellenza sui Materiali Innovativi Nanostrutturati (CEMIN); University of Perugia; via Elce di Sotto 8 06123 Perugia Italy
| | - Carmela Bonaccorso
- Department of Chemical Science; University of Catania; viale Andrea Doria 6 95125 Catania Italy
| | - Fausto Elisei
- Department of Chemistry Biology and Biotechnology; and Centro di Eccellenza sui Materiali Innovativi Nanostrutturati (CEMIN); University of Perugia; via Elce di Sotto 8 06123 Perugia Italy
| | - Cosimo G. Fortuna
- Department of Chemical Science; University of Catania; viale Andrea Doria 6 95125 Catania Italy
| | - Letizia Mencaroni
- Department of Chemistry Biology and Biotechnology; and Centro di Eccellenza sui Materiali Innovativi Nanostrutturati (CEMIN); University of Perugia; via Elce di Sotto 8 06123 Perugia Italy
| | - Anna Spalletti
- Department of Chemistry Biology and Biotechnology; and Centro di Eccellenza sui Materiali Innovativi Nanostrutturati (CEMIN); University of Perugia; via Elce di Sotto 8 06123 Perugia Italy
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21
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Bonaccorso C, Cesaretti A, Elisei F, Mencaroni L, Spalletti A, Fortuna CG. New Styryl Phenanthroline Derivatives as Model D-π-A-π-D Materials for Non-Linear Optics. Chemphyschem 2018; 19:1917-1929. [PMID: 29702737 DOI: 10.1002/cphc.201800391] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2018] [Indexed: 11/06/2022]
Abstract
Four novel push-pull systems combining a central phenanthroline acceptor moiety and two substituted benzene rings, as a part of the conjugated π-system between the donor and the acceptor moieties, have been synthetized through a straightforward and efficient one-step procedure. The chromophores display high fluorescence and a peculiar fluorosolvatochromic behaviour. Ultrafast investigation by means of state-of-the-art femtosecond-resolved transient absorption and fluorescence up-conversion spectroscopies allowed the role of intramolecular charge transfer (ICT) states to be evidenced, also revealing the crucial role played by both, the polarity and proticity of the medium on the excited state dynamics of the chromophores. The ICT processes, responsible for the solvatochromism, also lead to interesting non-linear optical (NLO) properties: namely great two photon absorption cross-sections (hundreds of GM), investigated by the Two Photon Excited Fluorescence (TPEF) technique, and large second order hyperpolarizability coefficients, estimated through a convenient solvatochromic method.
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Affiliation(s)
- Carmela Bonaccorso
- Department of Chemical Sciences, University of Catania, viale Andrea Doria 6, 95125, Catania, Italy
| | - Alessio Cesaretti
- Department of Chemistry, Biology and Biotechnology and Centro di Eccellenza sui Materiali Innovativi Nanostrutturati (CEMIN), University of Perugia, via Elce di Sotto 8, 06123, Perugia, Italy
| | - Fausto Elisei
- Department of Chemistry, Biology and Biotechnology and Centro di Eccellenza sui Materiali Innovativi Nanostrutturati (CEMIN), University of Perugia, via Elce di Sotto 8, 06123, Perugia, Italy
| | - Letizia Mencaroni
- Department of Chemistry, Biology and Biotechnology and Centro di Eccellenza sui Materiali Innovativi Nanostrutturati (CEMIN), University of Perugia, via Elce di Sotto 8, 06123, Perugia, Italy
| | - Anna Spalletti
- Department of Chemistry, Biology and Biotechnology and Centro di Eccellenza sui Materiali Innovativi Nanostrutturati (CEMIN), University of Perugia, via Elce di Sotto 8, 06123, Perugia, Italy
| | - Cosimo G Fortuna
- Department of Chemical Sciences, University of Catania, viale Andrea Doria 6, 95125, Catania, Italy
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22
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Cesaretti A, Carlotti B, Elisei F, Fortuna CG, Spalletti A. Photoinduced ICT vs. excited rotamer intercoversion in two quadrupolar polyaromatic N-methylpyridinium cations. Phys Chem Chem Phys 2018; 20:2851-2864. [DOI: 10.1039/c7cp06395d] [Citation(s) in RCA: 14] [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: 11/21/2022]
Abstract
The excited state deactivation of two quadrupolar polyaromatic N-methylpyridinium cations is ruled by either Rotamer Interconversion (RI) in the molecule bearing two naphthyl side groups or Intramolecular Charge Transfer (ICT) by extending the aromaticity in the pyrenyl derivative.
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Affiliation(s)
- A. Cesaretti
- Department of Chemistry
- Biology and Biotechnology and Centro di Eccellenza sui Materiali Innovativi Nanostrutturati (CEMIN)
- University of Perugia
- 06123 Perugia
- Italy
| | - B. Carlotti
- Department of Chemistry
- Biology and Biotechnology and Centro di Eccellenza sui Materiali Innovativi Nanostrutturati (CEMIN)
- University of Perugia
- 06123 Perugia
- Italy
| | - F. Elisei
- Department of Chemistry
- Biology and Biotechnology and Centro di Eccellenza sui Materiali Innovativi Nanostrutturati (CEMIN)
- University of Perugia
- 06123 Perugia
- Italy
| | - C. G. Fortuna
- Department of Chemical Sciences
- University of Catania
- I-95125 Catania
- Italy
| | - A. Spalletti
- Department of Chemistry
- Biology and Biotechnology and Centro di Eccellenza sui Materiali Innovativi Nanostrutturati (CEMIN)
- University of Perugia
- 06123 Perugia
- Italy
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23
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Cesaretti A, Carlotti B, Elisei F, Fortuna CG, Consiglio G, Spalletti A. A cationic naphthyl derivative defies the non-equilibrated excited rotamers principle. Phys Chem Chem Phys 2017; 19:5262-5272. [DOI: 10.1039/c6cp08311k] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Four quasi-isoenergetic ground state (S0) conformers undergo ultrafast rotamer interconversions in the excited state (S1) against the non-equilibrated excited rotamers principle.
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Affiliation(s)
- A. Cesaretti
- Department of Chemistry
- Biology and Biotechnology and Centro di Eccellenza sui Materiali Innovativi Nanostrutturati (CEMIN)
- University of Perugia
- 06123 Perugia
- Italy
| | - B. Carlotti
- Department of Chemistry
- Biology and Biotechnology and Centro di Eccellenza sui Materiali Innovativi Nanostrutturati (CEMIN)
- University of Perugia
- 06123 Perugia
- Italy
| | - F. Elisei
- Department of Chemistry
- Biology and Biotechnology and Centro di Eccellenza sui Materiali Innovativi Nanostrutturati (CEMIN)
- University of Perugia
- 06123 Perugia
- Italy
| | - C. G. Fortuna
- Department of Chemical Sciences
- University of Catania
- I-95125 Catania
- Italy
| | - G. Consiglio
- Department of Chemical Sciences
- University of Catania
- I-95125 Catania
- Italy
| | - A. Spalletti
- Department of Chemistry
- Biology and Biotechnology and Centro di Eccellenza sui Materiali Innovativi Nanostrutturati (CEMIN)
- University of Perugia
- 06123 Perugia
- Italy
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Clementi C, Cesaretti A, Carlotti B, Elisei F. The Role of pH in Modulating the Electronic State Properties of Minocycline Drug and Its Inclusion within Micellar Carriers. J Phys Chem A 2016; 120:4994-5005. [DOI: 10.1021/acs.jpca.5b12707] [Citation(s) in RCA: 9] [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] [Indexed: 11/29/2022]
Affiliation(s)
- Catia Clementi
- Department
of Chemistry,
Biology and Biotechnology and Center of Excellence on the Innovative
Nanostructured Materials (CEMIN), University of Perugia, via Elce
di Sotto 8, 06123 Perugia, Italy
| | - Alessio Cesaretti
- Department
of Chemistry,
Biology and Biotechnology and Center of Excellence on the Innovative
Nanostructured Materials (CEMIN), University of Perugia, via Elce
di Sotto 8, 06123 Perugia, Italy
| | - Benedetta Carlotti
- Department
of Chemistry,
Biology and Biotechnology and Center of Excellence on the Innovative
Nanostructured Materials (CEMIN), University of Perugia, via Elce
di Sotto 8, 06123 Perugia, Italy
| | - Fausto Elisei
- Department
of Chemistry,
Biology and Biotechnology and Center of Excellence on the Innovative
Nanostructured Materials (CEMIN), University of Perugia, via Elce
di Sotto 8, 06123 Perugia, Italy
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25
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Cesaretti A, Carlotti B, Gentili PL, Germani R, Spalletti A, Elisei F. Twisting in the excited state of an N-methylpyridinium fluorescent dye modulated by nano-heterogeneous micellar systems. Photochem Photobiol Sci 2016; 15:525-35. [DOI: 10.1039/c5pp00388a] [Citation(s) in RCA: 10] [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]
Abstract
The fluorescence of an N-methylpyridinium dye was modulated by nano-heterogeneous micellar systems, where its excited state twisting is gradually impaired by the increasing viscosity of the surrounding environment.
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Affiliation(s)
- A. Cesaretti
- Department of Chemistry
- Biology and Biotechnology and Centro di Eccellenza sui Materiali Innovativi Nanostrutturati (CEMIN)
- University of Perugia
- 06123 Perugia
- Italy
| | - B. Carlotti
- Department of Chemistry
- Biology and Biotechnology and Centro di Eccellenza sui Materiali Innovativi Nanostrutturati (CEMIN)
- University of Perugia
- 06123 Perugia
- Italy
| | - P. L. Gentili
- Department of Chemistry
- Biology and Biotechnology and Centro di Eccellenza sui Materiali Innovativi Nanostrutturati (CEMIN)
- University of Perugia
- 06123 Perugia
- Italy
| | - R. Germani
- Department of Chemistry
- Biology and Biotechnology and Centro di Eccellenza sui Materiali Innovativi Nanostrutturati (CEMIN)
- University of Perugia
- 06123 Perugia
- Italy
| | - A. Spalletti
- Department of Chemistry
- Biology and Biotechnology and Centro di Eccellenza sui Materiali Innovativi Nanostrutturati (CEMIN)
- University of Perugia
- 06123 Perugia
- Italy
| | - F. Elisei
- Department of Chemistry
- Biology and Biotechnology and Centro di Eccellenza sui Materiali Innovativi Nanostrutturati (CEMIN)
- University of Perugia
- 06123 Perugia
- Italy
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Carlotti B, Cesaretti A, Gentili PL, Marrocchi A, Elisei F, Spalletti A. A two excited state model to explain the peculiar photobehaviour of a flexible quadrupolar D–π–D anthracene derivative. Phys Chem Chem Phys 2016; 18:23389-99. [DOI: 10.1039/c6cp03985e] [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: 12/13/2022]
Abstract
The excited state deactivation of the investigated compound involves two distinct fluorescent states. 1A* → 1B* transition is accompanied by structural motions, with the 1B* state exhibiting a certain ICT character.
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Affiliation(s)
- B. Carlotti
- Department of Chemistry
- Biology and Biotechnology and Centro di Eccellenza sui Materiali Innovativi Nanostrutturati (CEMIN)
- University of Perugia
- 06123 Perugia
- Italy
| | - A. Cesaretti
- Department of Chemistry
- Biology and Biotechnology and Centro di Eccellenza sui Materiali Innovativi Nanostrutturati (CEMIN)
- University of Perugia
- 06123 Perugia
- Italy
| | - P. L. Gentili
- Department of Chemistry
- Biology and Biotechnology and Centro di Eccellenza sui Materiali Innovativi Nanostrutturati (CEMIN)
- University of Perugia
- 06123 Perugia
- Italy
| | - A. Marrocchi
- Department of Chemistry
- Biology and Biotechnology and Centro di Eccellenza sui Materiali Innovativi Nanostrutturati (CEMIN)
- University of Perugia
- 06123 Perugia
- Italy
| | - F. Elisei
- Department of Chemistry
- Biology and Biotechnology and Centro di Eccellenza sui Materiali Innovativi Nanostrutturati (CEMIN)
- University of Perugia
- 06123 Perugia
- Italy
| | - A. Spalletti
- Department of Chemistry
- Biology and Biotechnology and Centro di Eccellenza sui Materiali Innovativi Nanostrutturati (CEMIN)
- University of Perugia
- 06123 Perugia
- Italy
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Cesaretti A, Carlotti B, Gentili PL, Clementi C, Germani R, Elisei F. Doxycycline and oxytetracycline loading of a zwitterionic amphoteric surfactant-gel and their controlled release. Phys Chem Chem Phys 2015; 16:23096-107. [PMID: 25251135 DOI: 10.1039/c4cp03488k] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Abstract
Oxytetracycline (OX) and doxycycline (DX) are antibiotics belonging to the family of tetracyclines. We present a UV-Visible steady state and time-resolved experimental study of OX and DX and their biologically active Mg(2+) complexes loaded within a hydrogel matrix. Hydrogels are a three dimensional network of worm-like micelles, mutually intertwined, forming a pattern of hydrophobic domains and water pools. We resorted to a hydrogel, made of a zwitterionic N-oxide surfactant (p-dodecyloxybenzyldimethylamine N-oxide, pDoAO), which showed promising features as a drug vehicle. The spectral and photophysical properties of the drugs are significantly altered by the inclusion in the hydrophobic domains of the gel and these variations are indicators of the permeation ratio of the drug in between the micelles forming the gel network. We thus get a clear picture of the distribution of the drug molecules and metal chelates into the two different kinds of environment, where the hydrophobic domains are also able to cause a gel-induced deprotonation of these two drugs. Furthermore, the amphoteric nature of the surfactant is responsible for its peculiar acid-base behaviour: under acidic pH conditions, the surfactant gets protonated and the stability of the gel network is damaged. This feature can be thus exploited for the pH controlled release of the tetracycline drugs.
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Affiliation(s)
- A Cesaretti
- Department of Chemistry, Biology and Biotechnology and Centre of Excellence on Nanostructured Innovative Materials (CEMIN), University of Perugia, via Elce di Sotto 8, 06123 Perugia, Italy.
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28
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Cesaretti A, Carlotti B, Consiglio G, Del Giacco T, Spalletti A, Elisei F. Inclusion of Two Push–Pull N-Methylpyridinium Salts in Anionic Surfactant Solutions: A Comprehensive Photophysical Investigation. J Phys Chem B 2015; 119:6658-67. [DOI: 10.1021/acs.jpcb.5b02336] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Alessio Cesaretti
- Department
of Chemistry, Biology and Biotechnology and Centro di Eccellenza sui
Materiali Innovativi Nanostrutturati (CEMIN), University of Perugia, Perugia, Italy
| | - Benedetta Carlotti
- Department
of Chemistry, Biology and Biotechnology and Centro di Eccellenza sui
Materiali Innovativi Nanostrutturati (CEMIN), University of Perugia, Perugia, Italy
| | - Giuseppe Consiglio
- Department
of Industrial Engineering, University of Catania, viale Andrea
Doria 6, I-95125 Catania, Italy
| | - Tiziana Del Giacco
- Department
of Chemistry, Biology and Biotechnology and Centro di Eccellenza sui
Materiali Innovativi Nanostrutturati (CEMIN), University of Perugia, Perugia, Italy
| | - Anna Spalletti
- Department
of Chemistry, Biology and Biotechnology and Centro di Eccellenza sui
Materiali Innovativi Nanostrutturati (CEMIN), University of Perugia, Perugia, Italy
| | - Fausto Elisei
- Department
of Chemistry, Biology and Biotechnology and Centro di Eccellenza sui
Materiali Innovativi Nanostrutturati (CEMIN), University of Perugia, Perugia, Italy
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29
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Benassi E, Carlotti B, Segado M, Cesaretti A, Spalletti A, Elisei F, Barone V. Presence of Two Emissive Minima in the Lowest Excited State of a Push–Pull Cationic Dye Unequivocally Proved by Femtosecond Up-Conversion Spectroscopy and Vibronic Quantum-Mechanical Computations. J Phys Chem B 2015; 119:6035-40. [DOI: 10.1021/acs.jpcb.5b03545] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Enrico Benassi
- Scuola Normale Superiore, Piazza
dei Cavalieri 7, 56126 Pisa, Italy
| | - Benedetta Carlotti
- Department
of Chemistry, Biology and Biotechnology and Centro di Eccellenza sui
Materiali Innovativi Nanostrutturati (CEMIN), University of Perugia, via Elce di Sotto 8, 06123 Perugia, Italy
| | - Mireia Segado
- Scuola Normale Superiore, Piazza
dei Cavalieri 7, 56126 Pisa, Italy
| | - Alessio Cesaretti
- Department
of Chemistry, Biology and Biotechnology and Centro di Eccellenza sui
Materiali Innovativi Nanostrutturati (CEMIN), University of Perugia, via Elce di Sotto 8, 06123 Perugia, Italy
| | - Anna Spalletti
- Department
of Chemistry, Biology and Biotechnology and Centro di Eccellenza sui
Materiali Innovativi Nanostrutturati (CEMIN), University of Perugia, via Elce di Sotto 8, 06123 Perugia, Italy
| | - Fausto Elisei
- Department
of Chemistry, Biology and Biotechnology and Centro di Eccellenza sui
Materiali Innovativi Nanostrutturati (CEMIN), University of Perugia, via Elce di Sotto 8, 06123 Perugia, Italy
| | - Vincenzo Barone
- Scuola Normale Superiore, Piazza
dei Cavalieri 7, 56126 Pisa, Italy
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30
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Cesaretti A, Carlotti B, Germani R, Spalletti A, Elisei F. Inclusion of push–pull N-methylpyridinium salts within surfactant hydrogels: is their excited state intramolecular charge transfer mediated by twisting? Phys Chem Chem Phys 2015; 17:17214-20. [DOI: 10.1039/c5cp01639h] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [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 confining two push–pull N-methylpyridinium derivatives within the rigid domains of surfactant hydrogels, the twisted nature of their intramolecular charge transfer state (formed in water upon excitation) was unravelled.
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Affiliation(s)
- A. Cesaretti
- Department of Chemistry
- Biology and Biotechnology and Centro di Eccellenza sui Materiali Innovativi Nanostrutturati (CEMIN)
- University of Perugia
- 06123 Perugia
- Italy
| | - B. Carlotti
- Department of Chemistry
- Biology and Biotechnology and Centro di Eccellenza sui Materiali Innovativi Nanostrutturati (CEMIN)
- University of Perugia
- 06123 Perugia
- Italy
| | - R. Germani
- Department of Chemistry
- Biology and Biotechnology and Centro di Eccellenza sui Materiali Innovativi Nanostrutturati (CEMIN)
- University of Perugia
- 06123 Perugia
- Italy
| | - A. Spalletti
- Department of Chemistry
- Biology and Biotechnology and Centro di Eccellenza sui Materiali Innovativi Nanostrutturati (CEMIN)
- University of Perugia
- 06123 Perugia
- Italy
| | - F. Elisei
- Department of Chemistry
- Biology and Biotechnology and Centro di Eccellenza sui Materiali Innovativi Nanostrutturati (CEMIN)
- University of Perugia
- 06123 Perugia
- Italy
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Carlotti B, Benassi E, Cesaretti A, Fortuna CG, Spalletti A, Barone V, Elisei F. An ultrafast spectroscopic and quantum mechanical investigation of multiple emissions in push–pull pyridinium derivatives bearing different electron donors. Phys Chem Chem Phys 2015. [DOI: 10.1039/c5cp03207e] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
An interconversion between rotamers in S1 was evidenced for a cationic push–pull pyrenyl derivative through a joint femtosecond fluorescence up-conversion and density functional theoretical study.
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Affiliation(s)
- B. Carlotti
- Department of Chemistry
- Biology and Biotechnology and Centro di Eccellenza sui Materiali Innovativi Nanostrutturati (CEMIN)
- University of Perugia
- 06123 Perugia
- Italy
| | | | - A. Cesaretti
- Department of Chemistry
- Biology and Biotechnology and Centro di Eccellenza sui Materiali Innovativi Nanostrutturati (CEMIN)
- University of Perugia
- 06123 Perugia
- Italy
| | - C. G. Fortuna
- Department of Chemical Sciences
- University of Catania
- 95125 Catania
- Italy
| | - A. Spalletti
- Department of Chemistry
- Biology and Biotechnology and Centro di Eccellenza sui Materiali Innovativi Nanostrutturati (CEMIN)
- University of Perugia
- 06123 Perugia
- Italy
| | - V. Barone
- Scuola Normale Superiore
- 56126 Pisa
- Italy
| | - F. Elisei
- Department of Chemistry
- Biology and Biotechnology and Centro di Eccellenza sui Materiali Innovativi Nanostrutturati (CEMIN)
- University of Perugia
- 06123 Perugia
- Italy
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Carlotti B, Cesaretti A, Fortuna CG, Spalletti A, Elisei F. Experimental evidence of dual emission in a negatively solvatochromic push–pull pyridinium derivative. Phys Chem Chem Phys 2015; 17:1877-82. [DOI: 10.1039/c4cp04963b] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Dual emission due to LE and ICT excited states was observed in a cationic push–pull system showing negative solvatochromism.
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Affiliation(s)
- B. Carlotti
- Department of Chemistry
- Biology and Biotechnology and Centro di Eccellenza sui Materiali Innovativi Nanostrutturati (CEMIN)
- University of Perugia
- 06123 Perugia
- Italy
| | - A. Cesaretti
- Department of Chemistry
- Biology and Biotechnology and Centro di Eccellenza sui Materiali Innovativi Nanostrutturati (CEMIN)
- University of Perugia
- 06123 Perugia
- Italy
| | - C. G. Fortuna
- Department of Chemical Sciences
- University of Catania
- 95125 Catania
- Italy
| | - A. Spalletti
- Department of Chemistry
- Biology and Biotechnology and Centro di Eccellenza sui Materiali Innovativi Nanostrutturati (CEMIN)
- University of Perugia
- 06123 Perugia
- Italy
| | - F. Elisei
- Department of Chemistry
- Biology and Biotechnology and Centro di Eccellenza sui Materiali Innovativi Nanostrutturati (CEMIN)
- University of Perugia
- 06123 Perugia
- Italy
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33
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Cesaretti A, Carlotti B, Gentili PL, Clementi C, Germani R, Elisei F. Spectroscopic Investigation of the pH Controlled Inclusion of Doxycycline and Oxytetracycline Antibiotics in Cationic Micelles and Their Magnesium Driven Release. J Phys Chem B 2014; 118:8601-13. [DOI: 10.1021/jp502278z] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Affiliation(s)
- Alessio Cesaretti
- Department
of Chemistry,
Biology and Biotechnology and Centre of Excellence on Nanostructured
Innovative Materials (CEMIN), University of Perugia, via Elce
di Sotto 8, 06123 Perugia, Italy
| | - Benedetta Carlotti
- Department
of Chemistry,
Biology and Biotechnology and Centre of Excellence on Nanostructured
Innovative Materials (CEMIN), University of Perugia, via Elce
di Sotto 8, 06123 Perugia, Italy
| | - Pier Luigi Gentili
- Department
of Chemistry,
Biology and Biotechnology and Centre of Excellence on Nanostructured
Innovative Materials (CEMIN), University of Perugia, via Elce
di Sotto 8, 06123 Perugia, Italy
| | - Catia Clementi
- Department
of Chemistry,
Biology and Biotechnology and Centre of Excellence on Nanostructured
Innovative Materials (CEMIN), University of Perugia, via Elce
di Sotto 8, 06123 Perugia, Italy
| | - Raimondo Germani
- Department
of Chemistry,
Biology and Biotechnology and Centre of Excellence on Nanostructured
Innovative Materials (CEMIN), University of Perugia, via Elce
di Sotto 8, 06123 Perugia, Italy
| | - Fausto Elisei
- Department
of Chemistry,
Biology and Biotechnology and Centre of Excellence on Nanostructured
Innovative Materials (CEMIN), University of Perugia, via Elce
di Sotto 8, 06123 Perugia, Italy
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34
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Cesaretti A, Carlotti B, Clementi C, Germani R, Elisei F. Effect of micellar and sol–gel media on the spectral and kinetic properties of tetracycline and its complexes with Mg2+. Photochem Photobiol Sci 2014; 13:509-20. [DOI: 10.1039/c3pp50314c] [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] [Indexed: 12/21/2022]
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35
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Carlotti B, Cesaretti A, Elisei F. Complexes of tetracyclines with divalent metal cations investigated by stationary and femtosecond-pulsed techniques. Phys Chem Chem Phys 2012; 14:823-34. [DOI: 10.1039/c1cp22703c] [Citation(s) in RCA: 65] [Impact Index Per Article: 5.4] [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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