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Abate C, Scala A, Giuffrè O, Piperno A, Pistone A, Foti C. From speciation study to removal of Pb 2+ from natural waters by a carnosine-based polyacrylamide/azlactone copolymer. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2023; 335:117572. [PMID: 36848805 DOI: 10.1016/j.jenvman.2023.117572] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/03/2022] [Revised: 01/24/2023] [Accepted: 02/21/2023] [Indexed: 06/18/2023]
Abstract
A deep speciation study on L-carnosine (CAR) and Pb2+ system was performed in aqueous solution with the aim to assess its potential use as a sequestering agent of metal cation. To determine the best conditions for Pb2+ complexation, potentiometric measurements were carried out over a wide range of ionic strength (0.15 ≤ I/≤ 1 mol/L) and temperature (15 ≤ T/°C ≤ 37), and thermodynamic interaction parameters (logβ, ΔH, ΔG and TΔS) were determined. The speciation studies allowed us to simulate sequestration ability of CAR toward Pb2+ under different conditions of pH, ionic strength and temperature and to establish a priori the conditions for the best removal performance, i.e., pH > 7 and I = 001 mol/L. This preliminary investigation was very useful in optimizing removal procedures and limiting subsequent experimental measurements for adsorption tests. Therefore, to exploit the binding ability of CAR for Pb2+ removal from aqueous solutions, CAR was covalently grafted on an azlactone-activated beaded-polyacrylamide resin (AZ) using an efficient click coupling reaction (78.3% of coupling efficiency). The carnosine-based resin (AZCAR) was analyzed by ThermoGravimetric Analysis (TGA), Differential Scanning Calorimetry (DSC) and Differential Thermal Analysis (DTA). Morphology, surface area and pore size distribution were studied through a combination of Scanning Electron Microscope (SEM) and adsorption/desorption of N2 analyses according to the Brunauer-Emmett-Teller (BET) and Barret-Johner-Halenda (BJH) approaches. The adsorption capacity of AZCAR toward Pb2+ was investigated under conditions simulating the ionic strength and pH of different natural waters. The time needed to reach equilibrium in the adsorption process was 24 h, and the best performance was obtained at pH > 7, typical of most natural waters, with removal efficiency ranging from 90.8% (at I = 0.7 mol/L) to 99.0 (at I = 0.001 mol/L).
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Affiliation(s)
- Chiara Abate
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, Viale Ferdinando Stagno D'Alcontres 31, 98166 Messina, Italy
| | - Angela Scala
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, Viale Ferdinando Stagno D'Alcontres 31, 98166 Messina, Italy
| | - Ottavia Giuffrè
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, Viale Ferdinando Stagno D'Alcontres 31, 98166 Messina, Italy
| | - Anna Piperno
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, Viale Ferdinando Stagno D'Alcontres 31, 98166 Messina, Italy
| | - Alessandro Pistone
- Department of Engineering, University of Messina, Contrada Di Dio I, 98166 Messina, Italy
| | - Claudia Foti
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, Viale Ferdinando Stagno D'Alcontres 31, 98166 Messina, Italy.
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Liang X, Gillies ER. Self-immolative Amphiphilic Diblock Copolymers with Individually Triggerable Blocks. ACS POLYMERS AU 2022; 2:313-323. [PMID: 36254315 PMCID: PMC9562457 DOI: 10.1021/acspolymersau.2c00013] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
![]()
Self-immolative polymers
are a growing class of degradable polymers
that undergo end-to-end depolymerization after the stimuli-responsive
cleavage of an end-cap or backbone unit. Their incorporation into
amphiphilic block copolymers can lead to functions such as the disintegration
of copolymer nanoassemblies when depolymerization is triggered. However,
diblock copolymers have not yet been developed where both blocks are
self-immolative. Described here is the synthesis, self-assembly, and
triggered depolymerization of self-immolative block copolymers with
individually triggerable hydrophilic and hydrophobic blocks. Neutral
and cationic hydrophilic polyglyxoylamides (PGAm) with acid-responsive
end caps were synthesized and coupled to an ultraviolet (UV) light-triggerable
poly(ethyl glyoxylate) (PEtG) hydrophobic block. The resulting block
copolymers self-assembled to form nanoparticles in aqueous solution,
and their depolymerization in response to acid and UV light was studied
by techniques including light scattering, NMR spectroscopy, and electron
microscopy. Acid led to selective depolymerization of the PGAm blocks,
leading to aggregation, while UV light led to selective depolymerization
of the PEtG block, leading to disassembly. This self-immolative block
copolymer system provides an enhanced level of control over smart
copolymer assemblies and their degradation.
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Affiliation(s)
- Xiaoli Liang
- Department of Chemistry, The University of Western Ontario, London, Ontario, Canada, N6A 5B7
| | - Elizabeth R. Gillies
- Department of Chemistry, The University of Western Ontario, London, Ontario, Canada, N6A 5B7
- The Centre for Advanced Materials and Biomaterials Research, The University of Western Ontario, London, Ontario, Canada, N6A 5B7
- Department of Chemical and Biochemical Engineering, The University of Western Ontario, London, Ontario, Canada, N6A 5B9
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Dalmau D, Jiménez AI, Urriolabeitia EP. Synthesis and characterization of orthopalladated complexes containing tridentate C,N,O-oxazolones. Polyhedron 2022. [DOI: 10.1016/j.poly.2022.115904] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Cancer-Related Intracellular Signalling Pathways Activated by DOXorubicin/Cyclodextrin-Graphene-Based Nanomaterials. Biomolecules 2022; 12:biom12010063. [PMID: 35053211 PMCID: PMC8773469 DOI: 10.3390/biom12010063] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2021] [Revised: 12/29/2021] [Accepted: 12/30/2021] [Indexed: 02/07/2023] Open
Abstract
In the last decade, nanotechnological progress has generated new opportunities to improve the safety and efficacy of conventional anticancer therapies. Compared with other carriers, graphene nanoplatforms possess numerous tunable functionalities for the loading of multiple bioactive compounds, although their biocompatibility is still a debated concern. Recently, we have investigated the modulation of genes involved in cancer-associated canonical pathways induced by graphene engineered with cyclodextrins (GCD). Here, we investigated the GCD impact on cells safety, the HEp-2 responsiveness to Doxorubicin (DOX) and the cancer-related intracellular signalling pathways modulated by over time exposure to DOX loaded on GCD (GCD@DOX). Our studies evidenced that both DOX and GCD@DOX induced p53 and p21 signalling resulting in G0/G1 cell cycle arrest. A genotoxic behaviour of DOX was reported via detection of CDK (T14/Y15) activation and reduction of Wee-1 expression. Similarly, we found a cleavage of PARP by DOX within 72 h of exposure. Conversely, GCD@DOX induced a late cleavage of PARP, which could be indicative of less toxic effect due to controlled release of the drug from the GCD nanocarrier. Finally, the induction of the autophagy process supports the potential recycling of DOX with the consequent limitation of its toxic effects. Together, these findings demonstrate that GCD@DOX is a biocompatible drug delivery system able to evade chemoresistance and doxorubicin toxicity.
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Neri G, Fazio E, Nostro A, Mineo PG, Scala A, Rescifina A, Piperno A. Shedding Light on the Chemistry and the Properties of Münchnone Functionalized Graphene. NANOMATERIALS (BASEL, SWITZERLAND) 2021; 11:1629. [PMID: 34206184 PMCID: PMC8307402 DOI: 10.3390/nano11071629] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/24/2021] [Revised: 06/06/2021] [Accepted: 06/18/2021] [Indexed: 12/23/2022]
Abstract
Münchnones are mesoionic oxazolium 5-oxides with azomethine ylide characteristics that provide pyrrole derivatives by a 1,3-dipolar cycloaddition (1,3-DC) reaction with acetylenic dipolarophiles. Their reactivity was widely exploited for the synthesis of small molecules, but it was not yet investigated for the functionalization of graphene-based materials. Herein, we report our results on the preparation of münchnone functionalized graphene via cycloaddition reactions, followed by the spontaneous loss of carbon dioxide and its further chemical modification to silver/nisin nanocomposites to confer biological properties. A direct functionalization of graphite flakes into few-layers graphene decorated with pyrrole rings on the layer edge was achieved. The success of functionalization was confirmed by micro-Raman and X-ray photoelectron spectroscopies, scanning transmission electron microscopy, and thermogravimetric analysis. The 1,3-DC reactions of münchnone dipole with graphene have been investigated using density functional theory to model graphene. Finally, we explored the reactivity and the processability of münchnone functionalized graphene to produce enriched nano biomaterials endowed with antimicrobial properties.
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Affiliation(s)
- Giulia Neri
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, V.le F. Stagno d’Alcontres 31, 98166 Messina, Italy; (G.N.); (A.N.); (A.S.)
| | - Enza Fazio
- Department of Mathematical and Computational Sciences, Physics Science and Earth Science, University of Messina, V.le F. Stagno d’Alcontres 31, I-98166 Messina, Italy
| | - Antonia Nostro
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, V.le F. Stagno d’Alcontres 31, 98166 Messina, Italy; (G.N.); (A.N.); (A.S.)
| | - Placido Giuseppe Mineo
- Department of Chemical Sciences, University of Catania, V.le A. Doria, 95125 Catania, Italy;
| | - Angela Scala
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, V.le F. Stagno d’Alcontres 31, 98166 Messina, Italy; (G.N.); (A.N.); (A.S.)
| | - Antonio Rescifina
- Department of Drug and Health Sciences, University of Catania, V.le A. Doria, 95125 Catania, Italy
| | - Anna Piperno
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, V.le F. Stagno d’Alcontres 31, 98166 Messina, Italy; (G.N.); (A.N.); (A.S.)
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Foti C, Mineo PG, Nicosia A, Scala A, Neri G, Piperno A. Recent Advances of Graphene-Based Strategies for Arsenic Remediation. Front Chem 2020; 8:608236. [PMID: 33381493 PMCID: PMC7767874 DOI: 10.3389/fchem.2020.608236] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2020] [Accepted: 11/11/2020] [Indexed: 12/07/2022] Open
Abstract
The decontamination of water containing toxic metals is a challenging problem, and in the last years many efforts have been undertaken to discover efficient, cost-effective, robust, and handy technology for the decontamination of downstream water without endangering human health. According to the World Health Organization (WHO), 180 million people in the world have been exposed to toxic levels of arsenic from potable water. To date, a variety of techniques has been developed to maintain the arsenic concentration in potable water below the limit recommended by WHO (10 μg/L). Recently, a series of technological advancements in water remediation has been obtained from the rapid development of nanotechnology-based strategies that provide a remarkable control over nanoparticle design, allowing the tailoring of their properties toward specific applications. Among the plethora of nanomaterials and nanostructures proposed in the remediation field, graphene-based materials (G), due to their unique physico-chemical properties, surface area, size, shape, ionic mobility, and mechanical flexibility, are proposed for the development of reliable tools for water decontamination treatments. Moreover, an emerging class of 3D carbon materials characterized by the intrinsic properties of G together with new interesting physicochemical properties, such as high porosity, low density, unique electrochemical performance, has been recently proposed for water decontamination. The main design criteria used to develop remediation nanotechnology-based strategies have been reviewed, and special attention has been reserved for the advances of magnetic G and for nanostructures employed in the fabrication of membrane filtration.
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Affiliation(s)
- Claudia Foti
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, Messina, Italy
| | | | - Angelo Nicosia
- Department of Chemical Sciences, University of Catania, Catania, Italy
| | - Angela Scala
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, Messina, Italy
| | - Giulia Neri
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, Messina, Italy
| | - Anna Piperno
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, Messina, Italy
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Nicosia A, Vento F, Pellegrino AL, Ranc V, Piperno A, Mazzaglia A, Mineo P. Polymer-Based Graphene Derivatives and Microwave-Assisted Silver Nanoparticles Decoration as a Potential Antibacterial Agent. NANOMATERIALS (BASEL, SWITZERLAND) 2020; 10:E2269. [PMID: 33207792 PMCID: PMC7697993 DOI: 10.3390/nano10112269] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/07/2020] [Revised: 11/10/2020] [Accepted: 11/11/2020] [Indexed: 12/22/2022]
Abstract
Nanocomposites obtained by the decoration of graphene-based materials with silver nanoparticles (AgNPs) have received increasing attention owing to their antimicrobial activity. However, the complex synthetic methods for their preparation have limited practical applications. This study aims to synthesize novel NanoHybrid Systems based on graphene, polymer, and AgNPs (namely, NanoHy-GPS) through an easy microwave irradiation approach free of reductants and surfactants. The polymer plays a crucial role, as it assures the coating layer/substrate compatibility making the platform easily adaptable for a specific substrate. AgNPs' loading (from 5% to 87%) can be tuned by the amount of Silver salt used during the microwave-assisted reaction, obtaining spherical AgNPs with average sizes of 5-12 nm homogeneously distributed on a polymer-graphene nanosystem. Interestingly, microwave irradiation partially restored the graphene sp2 network without damage of ester bonds. The structure, morphology, and chemical composition of NanoHy-GPS and its subunits were characterized by means of UV-vis spectroscopy, thermal analysis, differential light scattering (DLS), Field Emission Scanning Electron Microscopy (FE-SEM), Energy Dispersive X-ray analysis (EDX), Atomic Force Microscopy (AFM), and High-Resolution Transmission Electron Microscopy (HRTEM) techniques. A preliminary qualitative empirical assay against the typical bacterial load on common hand-contacted surfaces has been performed to assess the antibacterial properties of NanoHy-GPS, evidencing a significative reduction of bacterial colonies spreading.
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Affiliation(s)
- Angelo Nicosia
- Department of Chemical Sciences, University of Catania, V.le A. Doria 6, 95125 Catania, Italy; (F.V.); (A.L.P.)
| | - Fabiana Vento
- Department of Chemical Sciences, University of Catania, V.le A. Doria 6, 95125 Catania, Italy; (F.V.); (A.L.P.)
| | - Anna Lucia Pellegrino
- Department of Chemical Sciences, University of Catania, V.le A. Doria 6, 95125 Catania, Italy; (F.V.); (A.L.P.)
| | - Vaclav Ranc
- Regional Centre of Advanced Technologies and Materials, Palacký University Olomouc, Šlechtitelů 11, 78371 Olomouc, Czech Republic;
| | - Anna Piperno
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, V.le F. Stagno d’Alcontres 31, 98166 Messina, Italy;
| | - Antonino Mazzaglia
- CNR-ISMN, Istituto per lo Studio dei Materiali Nanostrutturati, V. le F. Stagno d’Alcontres 31, 98166 Messina, Italy;
| | - Placido Mineo
- Department of Chemical Sciences, University of Catania, V.le A. Doria 6, 95125 Catania, Italy; (F.V.); (A.L.P.)
- Institute for Chemical and Physical Processes CNR-IPCF, Viale F. Stagno d’Alcontres 37, 98158 Messina, Italy
- Institute of Polymers, Composites and Biomaterials CNR-IPCB, Via P. Gaifami 18, 95126 Catania, Italy
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Liénard R, Montesi M, Panseri S, Dozio SM, Vento F, Mineo PG, Piperno A, De Winter J, Coulembier O, Scala A. Design of naturally inspired jellyfish-shaped cyclopolylactides to manage osteosarcoma cancer stem cells fate. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2020; 117:111291. [PMID: 32919652 DOI: 10.1016/j.msec.2020.111291] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/22/2020] [Revised: 05/23/2020] [Accepted: 07/21/2020] [Indexed: 01/10/2023]
Abstract
We report the synthesis, characterization and biological profile of new bis-triazoled cyclopolylactides (c-PLA, c-PLA-FA, c-PLA-Rhod) obtained by an optimized combination of ROP and click chemistry reactions. Cyclo-PLA having a number average molecular weight of 6000 g mol-1 and a polydispersity index of 1.52 was synthetized by click ring-closure of well-defined α,ω-heterodifunctional linear precursors, followed by quaternarization of N3-triazole nodes, and subsequent CuAAC with azido-folate and azido-rhodamine yielding jellyfish-shaped c-PLA-FA and c-PLA-Rhod. Salinomycin (Sal) was loaded into jellyfish-shaped c-PLA-FA and c-PLA-Rhod nanoparticles (NPs) by nanoprecipitation, with a good encapsulation efficiency (79% and 84%, respectively) and loading content (7.1% and 7.6%, respectively). The biological studies focused on their antiproliferative effects on osteosarcoma bulk MG63 and cancer stem cells (CSCs). The cycloPLA-based NPs, with a size ranging between 125 and 385 nm, killed CSCs and MG63, with a higher efficacy on CSCs; they (unloaded or Sal-loaded) evoked on CSCs a cellular response similar to the payload, with a higher effect than the free Sal. Internalization studies indicated a fast cellular uptake (within 2 h) and sarcospheres remained fluorescent till 72 h. To the best of our knowledge, this is the first study reporting anti-CSCs properties of cycloPLA with jellyfish architecture and we believe could contribute to the development of effective strategies for osteosarcoma targeting.
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Affiliation(s)
- Romain Liénard
- Center of Innovation and Research in Materials and Polymers (CIRMAP), Laboratory of Polymeric and Composite Materials, University of Mons, Place du Parc 23, 7000 Mons, Belgium; Interdisciplinary Center for Mass Spectrometry (CISMa), Organic Synthesis and Mass Spectrometry Laboratory, University of Mons, Place du Parc 23, 7000 Mons, Belgium
| | - Monica Montesi
- CNR-ISTEC, Institute of Science and Technology for Ceramics, National Research Council of Italy, Via Granarolo 64, 48018 Faenza, RA, Italy
| | - Silvia Panseri
- CNR-ISTEC, Institute of Science and Technology for Ceramics, National Research Council of Italy, Via Granarolo 64, 48018 Faenza, RA, Italy
| | - Samuele Maria Dozio
- CNR-ISTEC, Institute of Science and Technology for Ceramics, National Research Council of Italy, Via Granarolo 64, 48018 Faenza, RA, Italy
| | - Fabiana Vento
- Department of Chemical Sciences, University of Catania, Viale A. Doria, 95125 Catania, Italy
| | - Placido G Mineo
- Department of Chemical Sciences, University of Catania, Viale A. Doria, 95125 Catania, Italy; CNR-IPCB Institute of Polymers, Composites and Biomaterials, Via P. Gaifami 18, I-95126 Catania, Italy
| | - Anna Piperno
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, Viale F. Stagno d'Alcontres 31, 98166 Messina, Italy
| | - Julien De Winter
- Interdisciplinary Center for Mass Spectrometry (CISMa), Organic Synthesis and Mass Spectrometry Laboratory, University of Mons, Place du Parc 23, 7000 Mons, Belgium
| | - Olivier Coulembier
- Center of Innovation and Research in Materials and Polymers (CIRMAP), Laboratory of Polymeric and Composite Materials, University of Mons, Place du Parc 23, 7000 Mons, Belgium
| | - Angela Scala
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, Viale F. Stagno d'Alcontres 31, 98166 Messina, Italy.
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Caccamo D, Currò M, Ientile R, Verderio EAM, Scala A, Mazzaglia A, Pennisi R, Musarra-Pizzo M, Zagami R, Neri G, Rosmini C, Potara M, Focsan M, Astilean S, Piperno A, Sciortino MT. Intracellular Fate and Impact on Gene Expression of Doxorubicin/Cyclodextrin-Graphene Nanomaterials at Sub-Toxic Concentration. Int J Mol Sci 2020; 21:ijms21144891. [PMID: 32664456 PMCID: PMC7402311 DOI: 10.3390/ijms21144891] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2020] [Revised: 07/03/2020] [Accepted: 07/06/2020] [Indexed: 12/12/2022] Open
Abstract
The graphene road in nanomedicine still seems very long and winding because the current knowledge about graphene/cell interactions and the safety issues are not yet sufficiently clarified. Specifically, the impact of graphene exposure on gene expression is a largely unexplored concern. Herein, we investigated the intracellular fate of graphene (G) decorated with cyclodextrins (CD) and loaded with doxorubicin (DOX) and the modulation of genes involved in cancer-associated canonical pathways. Intracellular fate of GCD@DOX, tracked by FLIM, Raman mapping and fluorescence microscopy, evidenced the efficient cellular uptake of GCD@DOX and the presence of DOX in the nucleus, without graphene carrier. The NanoString nCounter™ platform provided evidence for 34 (out of 700) differentially expressed cancer-related genes in HEp-2 cells treated with GCD@DOX (25 µg/mL) compared with untreated cells. Cells treated with GCD alone (25 µg/mL) showed modification for 16 genes. Overall, 14 common genes were differentially expressed in both GCD and GCD@DOX treated cells and 4 of these genes with an opposite trend. The modification of cancer related genes also at sub-cytotoxic G concentration should be taken in consideration for the rational design of safe and effective G-based drug/gene delivery systems. The reliable advantages provided by NanoString® technology, such as sensibility and the direct RNA measurements, could be the cornerstone in this field.
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Affiliation(s)
- Daniela Caccamo
- Department of Biomedical Sciences, Dental Sciences and Morpho-Functional Imaging, Polyclinic Hospital University, 98125 Messina, Italy; (D.C.); (M.C.); (R.I.)
| | - Monica Currò
- Department of Biomedical Sciences, Dental Sciences and Morpho-Functional Imaging, Polyclinic Hospital University, 98125 Messina, Italy; (D.C.); (M.C.); (R.I.)
| | - Riccardo Ientile
- Department of Biomedical Sciences, Dental Sciences and Morpho-Functional Imaging, Polyclinic Hospital University, 98125 Messina, Italy; (D.C.); (M.C.); (R.I.)
| | - Elisabetta AM Verderio
- School of Science and Technology, Centre for Health, Ageing and Understanding of Disease, Nottingham Trent University, Nottingham NG11 8NS, UK;
| | - Angela Scala
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, V.le F. Stagno d’Alcontres 31, 98166 Messina, Italy; (A.S.); (R.P.); (M.M.P.); (G.N.); (C.R.)
| | - Antonino Mazzaglia
- CNR-Istituto per lo Studio dei Materiali Nanostrutturati (CNR-ISMN), Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, V.le F. Stagno d’Alcontres 31, 98166 Messina, Italy; (A.M.); (R.Z.)
| | - Rosamaria Pennisi
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, V.le F. Stagno d’Alcontres 31, 98166 Messina, Italy; (A.S.); (R.P.); (M.M.P.); (G.N.); (C.R.)
- Department of Innate Immunology, Shenzhen International Institute for Biomedical Research, 140 Jinye Ave, Building A10, Life Science Park, Dapeng New District, Shenzhen 518119, China
| | - Maria Musarra-Pizzo
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, V.le F. Stagno d’Alcontres 31, 98166 Messina, Italy; (A.S.); (R.P.); (M.M.P.); (G.N.); (C.R.)
| | - Roberto Zagami
- CNR-Istituto per lo Studio dei Materiali Nanostrutturati (CNR-ISMN), Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, V.le F. Stagno d’Alcontres 31, 98166 Messina, Italy; (A.M.); (R.Z.)
| | - Giulia Neri
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, V.le F. Stagno d’Alcontres 31, 98166 Messina, Italy; (A.S.); (R.P.); (M.M.P.); (G.N.); (C.R.)
| | - Consolato Rosmini
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, V.le F. Stagno d’Alcontres 31, 98166 Messina, Italy; (A.S.); (R.P.); (M.M.P.); (G.N.); (C.R.)
| | - Monica Potara
- Nanobiophotonics and Laser Microspectroscopy Center, Interdisciplinary Research Institute in Bio-Nano-Sciences, Babes-Bolyai University, T. Laurian Str. 42, 400271 Cluj-Napoca, Romania; (M.P.); (M.F.); (S.A.)
| | - Monica Focsan
- Nanobiophotonics and Laser Microspectroscopy Center, Interdisciplinary Research Institute in Bio-Nano-Sciences, Babes-Bolyai University, T. Laurian Str. 42, 400271 Cluj-Napoca, Romania; (M.P.); (M.F.); (S.A.)
| | - Simion Astilean
- Nanobiophotonics and Laser Microspectroscopy Center, Interdisciplinary Research Institute in Bio-Nano-Sciences, Babes-Bolyai University, T. Laurian Str. 42, 400271 Cluj-Napoca, Romania; (M.P.); (M.F.); (S.A.)
- Department of Biomolecular Physics, Faculty of Physics, Babes-Bolyai University, M Kogalniceanu Str. 1, 400084 Cluj-Napoca, Romania
| | - Anna Piperno
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, V.le F. Stagno d’Alcontres 31, 98166 Messina, Italy; (A.S.); (R.P.); (M.M.P.); (G.N.); (C.R.)
- Correspondence: (A.P.); (M.T.S.); Tel.: +39-090-6765173 (A.P.); +39-090-6765217 (M.T.S.)
| | - Maria Teresa Sciortino
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, V.le F. Stagno d’Alcontres 31, 98166 Messina, Italy; (A.S.); (R.P.); (M.M.P.); (G.N.); (C.R.)
- Correspondence: (A.P.); (M.T.S.); Tel.: +39-090-6765173 (A.P.); +39-090-6765217 (M.T.S.)
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Cordaro A, Neri G, Sciortino MT, Scala A, Piperno A. Graphene-Based Strategies in Liquid Biopsy and in Viral Diseases Diagnosis. NANOMATERIALS (BASEL, SWITZERLAND) 2020; 10:E1014. [PMID: 32466536 PMCID: PMC7353367 DOI: 10.3390/nano10061014] [Citation(s) in RCA: 30] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/25/2020] [Revised: 05/18/2020] [Accepted: 05/21/2020] [Indexed: 12/11/2022]
Abstract
Graphene-based materials are intriguing nanomaterials with applications ranging from nanotechnology-related devices to drug delivery systems and biosensing. Multifunctional graphene platforms were proposed for the detection of several typical biomarkers (i.e., circulating tumor cells, exosomes, circulating nucleic acids, etc.) in liquid biopsy, and numerous methods, including optical, electrochemical, surface-enhanced Raman scattering (SERS), etc., have been developed for their detection. Due to the massive advancements in biology, material chemistry, and analytical technology, it is necessary to review the progress in this field from both medical and chemical sides. Liquid biopsy is considered a revolutionary technique that is opening unexpected perspectives in the early diagnosis and, in therapy monitoring, severe diseases, including cancer, metabolic syndrome, autoimmune, and neurodegenerative disorders. Although nanotechnology based on graphene has been poorly applied for the rapid diagnosis of viral diseases, the extraordinary properties of graphene (i.e., high electronic conductivity, large specific area, and surface functionalization) can be also exploited for the diagnosis of emerging viral diseases, such as the coronavirus disease 2019 (COVID-19). This review aimed to provide a comprehensive and in-depth summarization of the contribution of graphene-based nanomaterials in liquid biopsy, discussing the remaining challenges and the future trend; moreover, the paper gave the first look at the potentiality of graphene in COVID-19 diagnosis.
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Affiliation(s)
- Annalaura Cordaro
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, 98166 Messina, Italy; (A.C.); (G.N.); (M.T.S.); (A.S.)
| | - Giulia Neri
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, 98166 Messina, Italy; (A.C.); (G.N.); (M.T.S.); (A.S.)
| | - Maria Teresa Sciortino
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, 98166 Messina, Italy; (A.C.); (G.N.); (M.T.S.); (A.S.)
| | - Angela Scala
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, 98166 Messina, Italy; (A.C.); (G.N.); (M.T.S.); (A.S.)
- Consorzio Interuniversitario Nazionale di ricerca in Metodologie e Processi Innovativi di Sintesi (C.I.N.M.P.I.S.), Unità Operativa dell’Università di Messina, 98166 Messina, Italy
| | - Anna Piperno
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, 98166 Messina, Italy; (A.C.); (G.N.); (M.T.S.); (A.S.)
- Consorzio Interuniversitario Nazionale di ricerca in Metodologie e Processi Innovativi di Sintesi (C.I.N.M.P.I.S.), Unità Operativa dell’Università di Messina, 98166 Messina, Italy
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11
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Bella G, Santoro A, Cordaro M, Nicolò F, Bruno G. Isoxazolone Reactivity Explained by Computed Electronic Structure Analysis. CHINESE J CHEM 2019. [DOI: 10.1002/cjoc.201900369] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Affiliation(s)
- Giovanni Bella
- Department of Chemical, Biological, Pharmaceutical and Environmental SciencesUniversity of Messina Viale F. Stagno d'Alcontres 31 98166 Messina Italy
| | - Antonio Santoro
- Department of Chemical, Biological, Pharmaceutical and Environmental SciencesUniversity of Messina Viale F. Stagno d'Alcontres 31 98166 Messina Italy
| | - Massimiliano Cordaro
- Department of Chemical, Biological, Pharmaceutical and Environmental SciencesUniversity of Messina Viale F. Stagno d'Alcontres 31 98166 Messina Italy
| | - Francesco Nicolò
- Department of Chemical, Biological, Pharmaceutical and Environmental SciencesUniversity of Messina Viale F. Stagno d'Alcontres 31 98166 Messina Italy
| | - Giuseppe Bruno
- Department of Chemical, Biological, Pharmaceutical and Environmental SciencesUniversity of Messina Viale F. Stagno d'Alcontres 31 98166 Messina Italy
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12
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Piperno A, Mazzaglia A, Scala A, Pennisi R, Zagami R, Neri G, Torcasio SM, Rosmini C, Mineo PG, Potara M, Focsan M, Astilean S, Zhou GG, Sciortino MT. Casting Light on Intracellular Tracking of a New Functional Graphene-Based MicroRNA Delivery System by FLIM and Raman Imaging. ACS APPLIED MATERIALS & INTERFACES 2019; 11:46101-46111. [PMID: 31729219 DOI: 10.1021/acsami.9b15826] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
The theranostic ability of a new fluorescently labeled cationic cyclodextrin-graphene nanoplatform (GCD@Ada-Rhod) was investigated by studying its intracellular trafficking and its ability to deliver plasmid DNA and microRNA. The nanoplatform was synthesized by both covalent and supramolecular approaches, and its chemical structure, morphology, and colloidal behavior were investigated by TGA, TEM, spectroscopic analysis such as UV-vis, fluorescence emission, DLS, and ζ-potential measurements. The cellular internalization of GCD@Ada-Rhod and its perinuclear localization were assessed by FLIM, Raman imaging, and fluorescence microscopy. Biological experiments with pCMS-EGFP and miRNA-15a evidenced the excellent capability of GCD@Ada-Rhod to deliver both pDNA and microRNA without significant cytotoxicity. The biological results evidenced an unforeseen caveolae-mediated endocytosis internalization pathway (generally expected for particles <200 nm), despite the fact that the GCD@Ada-Rhod size is about 400 nm (by DLS and TEM data). We supposed that the internalization pathway was driven by physical-chemical features of GCD@Ada-Rhod, and the caveolae-mediated uptake enhanced the transfection efficiency, avoiding the lysosomal acid degradation. The cellular effects of internalized miRNA-15a on the oncogene protein BCL-2 were investigated at two different concentrations (N/P = 10 and 5), and a reduction of the BCL-2 level was detected at a low concentration (i.e., N/P = 10). miRNA-15a is considered an ideal cancer therapy molecule due to its activity on multiple transcription factors, and the elucidation of the correlation between the concentration of delivered miRNA-15a and the down-/up-regulation of the BCL-2 level, documented for the first time in this work, could be an important contribution to guide its clinical application.
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Affiliation(s)
- Anna Piperno
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences , University of Messina , V.le F. Stagno d'Alcontres 31 , 98166 Messina , Italy
| | - Antonino Mazzaglia
- CNR-ISMN c/o Department of Chemical, Biological, Pharmaceutical and Environmental Sciences , University of Messina , V.le F. Stagno d'Alcontres 31 , 98166 Messina , Italy
| | - Angela Scala
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences , University of Messina , V.le F. Stagno d'Alcontres 31 , 98166 Messina , Italy
| | - Rosamaria Pennisi
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences , University of Messina , V.le F. Stagno d'Alcontres 31 , 98166 Messina , Italy
- Shenzhen International Institute for Biomedical Research , Shenzhen , Guangdong 518119 , China
| | - Roberto Zagami
- CNR-ISMN c/o Department of Chemical, Biological, Pharmaceutical and Environmental Sciences , University of Messina , V.le F. Stagno d'Alcontres 31 , 98166 Messina , Italy
| | - Giulia Neri
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences , University of Messina , V.le F. Stagno d'Alcontres 31 , 98166 Messina , Italy
| | - Serena M Torcasio
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences , University of Messina , V.le F. Stagno d'Alcontres 31 , 98166 Messina , Italy
| | - Consolato Rosmini
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences , University of Messina , V.le F. Stagno d'Alcontres 31 , 98166 Messina , Italy
| | - Placido G Mineo
- Department of Chemical Sciences , University of Catania , V.le A. Doria 6 , 95125 Catania , Italy
| | - Monica Potara
- Nanobiophotonics and Laser Microspectroscopy Center, Interdisciplinary Research Institute in Bio-Nano-Sciences , Babes-Bolyai University , T. Laurian Str. 42 , 400271 Cluj-Napoca , Romania
| | - Monica Focsan
- Nanobiophotonics and Laser Microspectroscopy Center, Interdisciplinary Research Institute in Bio-Nano-Sciences , Babes-Bolyai University , T. Laurian Str. 42 , 400271 Cluj-Napoca , Romania
| | - Simion Astilean
- Nanobiophotonics and Laser Microspectroscopy Center, Interdisciplinary Research Institute in Bio-Nano-Sciences , Babes-Bolyai University , T. Laurian Str. 42 , 400271 Cluj-Napoca , Romania
- Department of Biomolecular Physics, Faculty of Physics , Babes-Bolyai University , M Kogalniceanu Str. 1 , 400084 Cluj-Napoca , Romania
| | - Grace Guoying Zhou
- Shenzhen International Institute for Biomedical Research , Shenzhen , Guangdong 518119 , China
| | - Maria Teresa Sciortino
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences , University of Messina , V.le F. Stagno d'Alcontres 31 , 98166 Messina , Italy
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Neri G, Fazio E, Mineo PG, Scala A, Piperno A. SERS Sensing Properties of New Graphene/Gold Nanocomposite. NANOMATERIALS (BASEL, SWITZERLAND) 2019; 9:E1236. [PMID: 31480339 PMCID: PMC6780540 DOI: 10.3390/nano9091236] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/19/2019] [Revised: 08/27/2019] [Accepted: 08/28/2019] [Indexed: 11/17/2022]
Abstract
The development of graphene (G) substrates without damage on the sp2 network allows to tune the interactions with plasmonic noble metal surfaces to finally enhance surface enhanced Raman spectroscopy (SERS) effect. Here, we describe a new graphene/gold nanocomposite obtained by loading gold nanoparticles (Au NPs), produced by pulsed laser ablation in liquids (PLAL), on a new nitrogen-doped graphene platform (G-NH2). The graphene platform was synthesized by direct delamination and chemical functionalization of graphite flakes with 4-methyl-2-p-nitrophenyl oxazolone, followed by reduction of p-nitrophenyl groups. Finally, the G-NH2/Au SERS platform was prepared by using the conventional aerography spraying technique. SERS properties of G-NH2/Au were tested using Rhodamine 6G (Rh6G) and Dopamine (DA) as molecular probes. Raman features of Rh6G and DA are still detectable for concentration values down to 1 × 10-5 M and 1 × 10-6 M respectively.
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Affiliation(s)
- Giulia Neri
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, Viale F. Stagno D'Alcontres 31, I-98166 Messina, Italy
| | - Enza Fazio
- Department of Mathematical and Computational Sciences, Physics and Earth Physics, University of Messina, Viale F. Stagno D'Alcontres 31, I-98166 Messina, Italy.
| | - Placido Giuseppe Mineo
- Department of Chemical, Sciences, University of Catania, V.le A. Doria 6, 95125 Catania, Italy
- Institute for Chemical and Physical Processes-National Research Council (IPCF-CNR), Viale F. Stagno d'Alcontres 37, I-98158 Messina, Italy
| | - Angela Scala
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, Viale F. Stagno D'Alcontres 31, I-98166 Messina, Italy
| | - Anna Piperno
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, Viale F. Stagno D'Alcontres 31, I-98166 Messina, Italy.
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14
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Marra IFS, de Castro PP, Amarante GW. Recent Advances in Azlactone Transformations. European J Org Chem 2019. [DOI: 10.1002/ejoc.201901076] [Citation(s) in RCA: 41] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Isabella F. S. Marra
- Chemistry Department; Federal University of Juiz de Fora; José Lourenço Kelmer, São Pedro Juiz de Fora Brazil
| | - Pedro P. de Castro
- Chemistry Department; Federal University of Juiz de Fora; José Lourenço Kelmer, São Pedro Juiz de Fora Brazil
| | - Giovanni W. Amarante
- Chemistry Department; Federal University of Juiz de Fora; José Lourenço Kelmer, São Pedro Juiz de Fora Brazil
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Masigol M, Fattahi N, Barua N, Lokitz BS, Retterer ST, Platt TG, Hansen RR. Identification of Critical Surface Parameters Driving Lectin-Mediated Capture of Bacteria from Solution. Biomacromolecules 2019; 20:2852-2863. [PMID: 31150217 DOI: 10.1021/acs.biomac.9b00609] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
Lectin-functional interfaces are useful for isolation of bacteria from solution because they are low-cost and allow nondestructive, reversible capture. This study provides a systematic investigation of physical and chemical surface parameters that influence bacteria capture over lectin-functionalized polymer interfaces and then applies these findings to construct surfaces with significantly enhanced bacteria capture. The designer block copolymer poly(glycidyl methacrylate)- block-poly(vinyldimethyl azlactone) was used as a lectin attachment layer, and lectin coupling into the polymer film through azlactone-lectin coupling reactions was first characterized. Here, experimental parameters including polymer areal chain density, lectin molecular weight, and lectin coupling buffer were systematically varied to identify parameters driving highest azlactone conversions and corresponding lectin surface densities. To introduce physical nanostructures into the attachment layer, nanopillar arrays (NPAs) of varied heights (300 and 2100 nm) were then used to provide an underlying surface template for the functional polymer layer. Capture of Escherichia coli on lectin-polymer surfaces coated over both flat and NPA surfaces was then investigated. For flat polymer interfaces, bacteria were detected on the surface after incubation at a solution concentration of 103 cfu/mL, and a corresponding detection limit of 1.7 × 103 cfu/mL was quantified. This detection limit was 1 order of magnitude lower than control lectin surfaces functionalized with standard, carbodiimide coupling chemistry. NPA surfaces containing 300 nm tall pillars further improved the detection limit to 2.1 × 102 cfu/mL, but also reduced the viability of captured cells. Finally, to investigate the impact of cell surface parameters on capture, we used Agrobacterium tumefaciens cells genetically modified to allow manipulation of exopolysaccharide adhesin production levels. Statistical analysis of surface capture levels revealed that lectin surface density was the primary factor driving capture, as opposed to exopolysaccharide adhesin expression. These findings emphasize the critical importance of the synthetic interface and the development of surfaces that combine high lectin densities with tailored physical features to drive high levels of capture. These insights will aid in design of biofunctional interfaces with physicochemical surface properties favorable for capture and isolation of bacteria cells from solutions.
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16
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Barreca D, Neri G, Scala A, Fazio E, Gentile D, Rescifina A, Piperno A. Covalently immobilized catalase on functionalized graphene: effect on the activity, immobilization efficiency, and tetramer stability. Biomater Sci 2019; 6:3231-3240. [PMID: 30379150 DOI: 10.1039/c8bm00850g] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Abstract
Herein we describe, for the first time, the covalent immobilization of catalase (CAT) on functionalized graphene surfaces (G) by exploiting the azalactone chemistry for the post-functionalization of graphene-based materials. The structure, morphology and chemical composition of catalase immobilized on graphene (CAT-G) have been investigated by Fourier-transform infrared spectroscopy (FTIR), X-ray photoelectron spectroscopy (XPS) and scanning electron microscopy with energy dispersive X-ray spectroscopy (SEM/EDX). The biological responses such as catalytic activity, cellular uptake, internalization pathway, and the ability to protect lymphocytes from oxidative stress induced by H2O2 together with the unforeseen ability to increase the lifetime of the free catalase in solution have been deeply investigated. From our studies, it is evident that the behavior of CAT covalently linked to modified graphene depends on the CAT/G ratio that affects the secondary structure and the tetramer stability of CAT. In order to support the experimental results, we have also investigated the behaviors of two appropriately designed model systems, named CAT-surfer and CAT-skier, by molecular dynamics calculations. These in silico results parallel the experimental results proving our hypothesis that the CAT-surfer maintains the conformational flexibility needed for a biological response, whereas CAT-skier favors the dissociation of the tetramer subunits, involving the inactivation of the enzyme.
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Affiliation(s)
- Davide Barreca
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, Viale F. Stagno D'Alcontres 31, I-98166, Italy.
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17
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Long J, Hu A, Shu C, Wang S, Li J, Liang R. Three-Dimensional Flower-Like MoS2
@Carbon Nanotube Composites with Interconnected Porous Networks and High Catalytic Activity as Cathode for Lithium-Oxygen Batteries. ChemElectroChem 2018. [DOI: 10.1002/celc.201800795] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Jianping Long
- College of Materials and Chemistry & Chemical Engineering; Chengdu University of Technology 1#, Dongsanlu, Erxianqiao; Chengdu 610059, Sichuan P. R. China
| | - Anjun Hu
- College of Materials and Chemistry & Chemical Engineering; Chengdu University of Technology 1#, Dongsanlu, Erxianqiao; Chengdu 610059, Sichuan P. R. China
| | - Chaozhu Shu
- College of Materials and Chemistry & Chemical Engineering; Chengdu University of Technology 1#, Dongsanlu, Erxianqiao; Chengdu 610059, Sichuan P. R. China
| | - Sha Wang
- College of Nuclear Technology and Automation Engineering; Chengdu University of Technology 1#, Dongsanlu, Erxianqiao; Chengdu 610059, Sichuan P. R. China
| | - Jiabao Li
- College of Materials and Chemistry & Chemical Engineering; Chengdu University of Technology 1#, Dongsanlu, Erxianqiao; Chengdu 610059, Sichuan P. R. China
| | - Ranxi Liang
- College of Materials and Chemistry & Chemical Engineering; Chengdu University of Technology 1#, Dongsanlu, Erxianqiao; Chengdu 610059, Sichuan P. R. China
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18
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Mousli Y, Rouvière L, Traboulsi I, Hunel J, Buffeteau T, Heuzé K, Vellutini L, Genin E. Hydrosilylation of Azide-Containing Olefins as a Convenient Access to Azidoorganotrialkoxysilanes for Self-Assembled Monolayer Elaboration onto Silica by Spin Coating. ChemistrySelect 2018. [DOI: 10.1002/slct.201800858] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Yannick Mousli
- ISM, UMR 5255 CNRS; University of Bordeaux; F-33400 Talence France
| | - Lisa Rouvière
- ISM, UMR 5255 CNRS; University of Bordeaux; F-33400 Talence France
| | - Iman Traboulsi
- ISM, UMR 5255 CNRS; University of Bordeaux; F-33400 Talence France
| | - Julien Hunel
- ISM, UMR 5255 CNRS; University of Bordeaux; F-33400 Talence France
| | | | - Karine Heuzé
- ISM, UMR 5255 CNRS; University of Bordeaux; F-33400 Talence France
| | - Luc Vellutini
- ISM, UMR 5255 CNRS; University of Bordeaux; F-33400 Talence France
| | - Emilie Genin
- ISM, UMR 5255 CNRS; University of Bordeaux; F-33400 Talence France
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19
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Elazab HA, Sadek M, El-Idreesy TT. Microwave-assisted synthesis of palladium nanoparticles supported on copper oxide in aqueous medium as an efficient catalyst for Suzuki cross-coupling reaction. ADSORPT SCI TECHNOL 2018. [DOI: 10.1177/0263617418771777] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
We report here a reliable green method for the synthesis of palladium nanoparticles supported on copper oxide as a highly active and efficient catalyst for Suzuki cross-coupling reaction. The experimental synthetic approach is based on microwave-assisted chemical reduction of an aqueous mixture of palladium and copper salt simultaneously using hydrazine hydrate as reducing agent. The catalyst was fully characterized using various techniques showing well-dispersed palladium nanoparticles. The catalytic activity and recyclability of the prepared catalyst were experimentally explored in the ligand-free Suzuki cross-coupling reaction with a diverse series of functionalized substrates. The synthesized Pd/CuO catalyst shows many advantages beside its high catalytic efficiency such as the recyclability of up to five times with negligible loss of catalytic activity, short reaction times, use of environmentally benign solvent systems, and mild reaction conditions.
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Affiliation(s)
- Hany A Elazab
- Department of Chemical Engineering, Faculty of Engineering, The British University in Egypt, Egypt
| | - M.A. Sadek
- Department of Chemical Engineering, Faculty of Engineering, The British University in Egypt, Egypt
| | - Tamer T El-Idreesy
- Department of Chemistry, Faculty of Science, Cairo University, Egypt. Department of Chemistry, School of Sciences and Engineering, The American University in Cairo, Egypt
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20
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Ho HT, Bénard A, Forcher G, Le Bohec M, Montembault V, Pascual S, Fontaine L. Azlactone-based heterobifunctional linkers with orthogonal clickable groups: efficient tools for bioconjugation with complete atom economy. Org Biomol Chem 2018; 16:7124-7128. [DOI: 10.1039/c8ob01807c] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
New azlactone-based heterobifunctional linkers that proceed in orthogonal click-like reactions for chemical ligations in biologically relevant medium without releasing any byproduct.
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Affiliation(s)
- Hien The Ho
- Institut des Molécules et Matériaux du Mans (IMMM) UMR 6283 CNRS – Le Mans Université
- 72085 Le Mans cedex 9
- France
| | - Alexandre Bénard
- Institut des Molécules et Matériaux du Mans (IMMM) UMR 6283 CNRS – Le Mans Université
- 72085 Le Mans cedex 9
- France
| | - Gwenaël Forcher
- Institut des Molécules et Matériaux du Mans (IMMM) UMR 6283 CNRS – Le Mans Université
- 72085 Le Mans cedex 9
- France
| | - Maël Le Bohec
- Institut des Molécules et Matériaux du Mans (IMMM) UMR 6283 CNRS – Le Mans Université
- 72085 Le Mans cedex 9
- France
| | - Véronique Montembault
- Institut des Molécules et Matériaux du Mans (IMMM) UMR 6283 CNRS – Le Mans Université
- 72085 Le Mans cedex 9
- France
| | - Sagrario Pascual
- Institut des Molécules et Matériaux du Mans (IMMM) UMR 6283 CNRS – Le Mans Université
- 72085 Le Mans cedex 9
- France
| | - Laurent Fontaine
- Institut des Molécules et Matériaux du Mans (IMMM) UMR 6283 CNRS – Le Mans Université
- 72085 Le Mans cedex 9
- France
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21
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Scala A, Piperno A, Micale N, Mineo PG, Abbadessa A, Risoluti R, Castelli G, Bruno F, Vitale F, Cascio A, Grassi G. "Click" on PLGA-PEG and hyaluronic acid: Gaining access to anti-leishmanial pentamidine bioconjugates. J Biomed Mater Res B Appl Biomater 2017; 106:2778-2785. [PMID: 29219244 DOI: 10.1002/jbm.b.34058] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2017] [Revised: 11/09/2017] [Accepted: 11/18/2017] [Indexed: 12/26/2022]
Abstract
Pentamidine (Pent), an antiparasitic drug used for the treatment of visceral leishmaniasis, has been modified with terminal azide groups and conjugated to two different polymer backbones (PLGA-PEG [PP] copolymer and hyaluronic acid [HA]) armed with alkyne end-groups. The conjugation has been performed by Copper Catalyzed Azido Alkyne Cycloaddition (CuAAC) using CuSO4 /sodium ascorbate as metal source. The novel PP-Pent and HA-Pent bioconjugates are proposed, respectively, as non-targeted and targeted drug delivery systems against Leishmania infections. Moreover, Pent has been encapsulated into PP nanoparticles by the oil-in-water emulsion method, with the aim to compare the biological activity of the bioconjugates with that of the classical drug-loaded delivery system that physically entraps the therapeutic agent. Biological assays against Leishmania infantum amastigote-infected macrophages and primary macrophages revealed that Pent, either covalently conjugated with polymers or loaded into polymeric nanoparticles, turned out to be more potent and less toxic than the free Pent. © 2018 Wiley Periodicals, Inc. J Biomed Mater Res Part B: Appl Biomater, 106B: 2778-2785, 2018.
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Affiliation(s)
- Angela Scala
- Dipartimento di Scienze Chimiche, Biologiche, Farmaceutiche ed Ambientali, Università di Messina, V.le F. Stagno d'Alcontres 31, 98166, Messina, Italy
| | - Anna Piperno
- Dipartimento di Scienze Chimiche, Biologiche, Farmaceutiche ed Ambientali, Università di Messina, V.le F. Stagno d'Alcontres 31, 98166, Messina, Italy.,INSTM - Consorzio Interuniversitario Nazionale per la Scienza e Tecnologia dei Materiali (UdR Catania e Messina), Italy
| | - Nicola Micale
- Dipartimento di Scienze Chimiche, Biologiche, Farmaceutiche ed Ambientali, Università di Messina, V.le F. Stagno d'Alcontres 31, 98166, Messina, Italy
| | - Placido G Mineo
- INSTM - Consorzio Interuniversitario Nazionale per la Scienza e Tecnologia dei Materiali (UdR Catania e Messina), Italy.,Dipartimento di Scienze Chimiche, Università di Catania, Viale A. Doria 6, 95125, Catania, Italy.,CNR-IPCB Istituto per i Polimeri, Compositi e Biomateriali; Via P. Gaifami 18, I-95126, Catania, Italy
| | - Antonio Abbadessa
- Dipartimento di Scienze Chimiche, Università di Catania, Viale A. Doria 6, 95125, Catania, Italy
| | - Roberta Risoluti
- Dipartimento di Chimica, Università La Sapienza Roma, P.le A. Moro 5, 00185, Roma, Italy
| | - Germano Castelli
- National Reference Center for Leishmaniasis (C.Re.Na.L.), Istituto Zooprofilattico Sperimentale della Sicilia, Via G. Marinuzzi 3, 90129, Palermo, Italy
| | - Federica Bruno
- National Reference Center for Leishmaniasis (C.Re.Na.L.), Istituto Zooprofilattico Sperimentale della Sicilia, Via G. Marinuzzi 3, 90129, Palermo, Italy
| | - Fabrizio Vitale
- National Reference Center for Leishmaniasis (C.Re.Na.L.), Istituto Zooprofilattico Sperimentale della Sicilia, Via G. Marinuzzi 3, 90129, Palermo, Italy
| | - Antonio Cascio
- Department of Health Promotion Sciences, Section of Infectious Diseases, University of Palermo, Via del Vespro 129, 90127, Palermo, Italy
| | - Giovanni Grassi
- Dipartimento di Scienze Chimiche, Biologiche, Farmaceutiche ed Ambientali, Università di Messina, V.le F. Stagno d'Alcontres 31, 98166, Messina, Italy
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Elazab HA, Moussa S, Siamaki AR, Gupton BF, El-Shall MS. The Effect of Graphene on Catalytic Performance of Palladium Nanoparticles Decorated with Fe3O4, Co3O4, and Ni (OH)2: Potential Efficient Catalysts Used for Suzuki Cross—Coupling. Catal Letters 2017. [DOI: 10.1007/s10562-017-1990-z] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
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Zhao L, Sui XL, Li JL, Zhang JJ, Zhang LM, Wang ZB. 3D Hierarchical Pt-Nitrogen-Doped-Graphene-Carbonized Commercially Available Sponge as a Superior Electrocatalyst for Low-Temperature Fuel Cells. ACS APPLIED MATERIALS & INTERFACES 2016; 8:16026-16034. [PMID: 27266527 DOI: 10.1021/acsami.6b03520] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Three-dimensional hierarchical nitrogen-doped graphene (3D-NG) frameworks were successfully fabricated through a feasible solution dip-coating method with commercially available sponges as the initial backbone. A spongy template can help hinder the graphene plates restacking in the period of the annealing process. The Pt/3D-NG catalyst was synthesized employing a polyol reduction process. The resultant Pt/3D-NG exhibits 2.3 times higher activity for methanol electro-oxidation along with the improvement in stability as compared with Pt/G owing to their favorable features including large specific surface area, high pore volume, high N doping level, and the homogeneous dispersion of Pt nanoparticles. Besides, Pt/3D-NG also presents high oxygen reduction reaction (ORR) performance in acid media when compared with Pt/3D-G and Pt/G. This work raises a valid solution for the fabrication of 3D functional freestanding graphene-based composites for a variety of applications in fuel cell catalysis, energy storage, and conversion.
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Affiliation(s)
- Lei Zhao
- School of Chemistry and Chemical Engineering, Harbin Institute of Technology , No. 92 West-Da Zhi Street, Harbin, 150001 China
| | - Xu-Lei Sui
- School of Chemistry and Chemical Engineering, Harbin Institute of Technology , No. 92 West-Da Zhi Street, Harbin, 150001 China
| | - Jia-Long Li
- School of Chemistry and Chemical Engineering, Harbin Institute of Technology , No. 92 West-Da Zhi Street, Harbin, 150001 China
| | - Jing-Jia Zhang
- School of Chemistry and Chemical Engineering, Harbin Institute of Technology , No. 92 West-Da Zhi Street, Harbin, 150001 China
| | - Li-Mei Zhang
- School of Chemistry and Chemical Engineering, Harbin Institute of Technology , No. 92 West-Da Zhi Street, Harbin, 150001 China
| | - Zhen-Bo Wang
- School of Chemistry and Chemical Engineering, Harbin Institute of Technology , No. 92 West-Da Zhi Street, Harbin, 150001 China
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Neri G, Scala A, Fazio E, Mineo PG, Rescifina A, Piperno A, Grassi G. Repurposing of oxazolone chemistry: gaining access to functionalized graphene nanosheets in a top-down approach from graphite. Chem Sci 2015; 6:6961-6970. [PMID: 29861934 PMCID: PMC5951103 DOI: 10.1039/c5sc02576a] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2015] [Accepted: 08/24/2015] [Indexed: 02/01/2023] Open
Abstract
Solvent-free 1,3-dipolar cycloaddition reactions of graphite flakes and mesoionic oxazolones lead to the direct functionalization and delamination of graphite flakes into few layers of graphene nanosheets.
Solvent-free 1,3-dipolar cycloaddition (1,3-DC) reactions between graphite flakes and mesoionic oxazolones were carried out by heating the resulting solid mixture at mild temperatures (70–120 °C). The direct functionalization and delamination of graphite flakes into few layers of graphene nanosheets was confirmed by micro-Raman and X-ray photoelectron spectroscopies, scanning transmission electron microscopy and thermogravimetric analysis. The 1,3-DC reactions of mesoionic dipoles have been investigated with density functional theory to model graphene, exploring three different pathways: center, corner and edge. These theoretical calculations highlighted that the 1,3-DC reaction can proceed both through a concerted mechanism competing with a stepwise one involving a zwitterionic intermediate. The irreversible decarboxylation inherent in the last step justifies the high degree of functionalization experimentally observed, representing the driving force of the process.
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Affiliation(s)
- Giulia Neri
- Dipartimento di Scienze Chimiche , Università di Messina , Viale Ferdinando Stagno D'Alcontres 31 , 98166 Messina , Italy . ; ; Tel: +39 0906765173
| | - Angela Scala
- Dipartimento di Scienze Chimiche , Università di Messina , Viale Ferdinando Stagno D'Alcontres 31 , 98166 Messina , Italy . ; ; Tel: +39 0906765173
| | - Enza Fazio
- Dipartimento di Fisica e di Scienze della Terra , Università di Messina , V.le F. Stagno d'Alcontres 31 , 98166 Messina , Italy
| | - Placido G Mineo
- Dipartimento di Scienze Chimiche , Università di Catania , V.le A. Doria 6 , 95125 Catania , Italy
| | - Antonio Rescifina
- Dipartimento di Scienze del Farmaco , Università di Catania , V.le A. Doria 6 , 95125 Catania , Italy
| | - Anna Piperno
- Dipartimento di Scienze Chimiche , Università di Messina , Viale Ferdinando Stagno D'Alcontres 31 , 98166 Messina , Italy . ; ; Tel: +39 0906765173
| | - Giovanni Grassi
- Dipartimento di Scienze Chimiche , Università di Messina , Viale Ferdinando Stagno D'Alcontres 31 , 98166 Messina , Italy . ; ; Tel: +39 0906765173
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