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Balasco N, Altamura D, Scognamiglio PL, Sibillano T, Giannini C, Morelli G, Vitagliano L, Accardo A, Diaferia C. Self-Assembled Materials Based on Fully Aromatic Peptides: The Impact of Tryptophan, Tyrosine, and Dopa Residues. Langmuir 2024; 40:1470-1486. [PMID: 38174846 PMCID: PMC10795196 DOI: 10.1021/acs.langmuir.3c03214] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/23/2023] [Revised: 12/13/2023] [Accepted: 12/18/2023] [Indexed: 01/05/2024]
Abstract
Peptides are able to self-organize in structural elements including cross-β structures. Taking advantage of this tendency, in the last decades, peptides have been scrutinized as molecular elements for the development of multivalent supramolecular architectures. In this context, different classes of peptides, also with completely aromatic sequences, were proposed. Our previous studies highlighted that the (FY)3 peptide, which alternates hydrophobic phenylalanine and more hydrophilic tyrosine residues, is able to self-assemble, thanks to the formation of both polar and apolar interfaces. It was observed that the replacement of Phe and Tyr residues with other noncoded aromatic amino acids like 2-naphthylalanine (Nal) and Dopa affects the interactions among peptides with consequences on the supramolecular organization. Herein, we have investigated the self-assembling behavior of two novel (FY)3 analogues with Trp and Dopa residues in place of the Phe and Tyr ones, respectively. Additionally, PEGylation of the N-terminus was analyzed too. The supramolecular organization, morphology, and capability to gel were evaluated using complementary techniques, including fluorescence, Fourier transform infrared spectroscopy, and scanning electron microscopy. Structural periodicities along and perpendicular to the fiber axis were detected by grazing incidence wide-angle X-ray scattering. Finally, molecular dynamics studies provided interesting insights into the atomic structure of the cross-β that constitutes the basic motif of the assemblies formed by these novel peptide systems.
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Affiliation(s)
- Nicole Balasco
- Institute
of Molecular Biology and Pathology, CNR, Piazzale Aldo Moro 5, Rome 00185, Italy
| | - Davide Altamura
- Institute
of Crystallography (IC), CNR, Via Amendola 122, Bari 70126, Italy
| | | | - Teresa Sibillano
- Institute
of Crystallography (IC), CNR, Via Amendola 122, Bari 70126, Italy
| | - Cinzia Giannini
- Institute
of Crystallography (IC), CNR, Via Amendola 122, Bari 70126, Italy
| | - Giancarlo Morelli
- Department
of Pharmacy and CIRPeB, Research Centre on Bioactive Peptides “Carlo
Pedone”, University of Naples “Federico
II”, Via Montesano 49, Naples 80131, Italy
| | - Luigi Vitagliano
- Institute
of Biostructures and Bioimaging (IBB), CNR, Via Castellino 111, Naples 80131, Italy
| | - Antonella Accardo
- Department
of Pharmacy and CIRPeB, Research Centre on Bioactive Peptides “Carlo
Pedone”, University of Naples “Federico
II”, Via Montesano 49, Naples 80131, Italy
| | - Carlo Diaferia
- Department
of Pharmacy and CIRPeB, Research Centre on Bioactive Peptides “Carlo
Pedone”, University of Naples “Federico
II”, Via Montesano 49, Naples 80131, Italy
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2
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Cinquino M, Prontera CT, Giuri A, Pugliese M, Giannuzzi R, Maggiore A, Altamura D, Mariano F, Gigli G, Esposito Corcione C, Giannini C, Rizzo A, De Marco L, Maiorano V. Thermochromic Printable and Multicolor Polymeric Composite Based on Hybrid Organic-Inorganic Perovskite. Adv Mater 2024; 36:e2307564. [PMID: 37708463 DOI: 10.1002/adma.202307564] [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] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/28/2023] [Revised: 09/12/2023] [Indexed: 09/16/2023]
Abstract
Hybrid organic-inorganic perovskites (PVKs) are among the most promising materials for optoelectronic applications thanks to their outstanding photophysical properties and easy synthesis. Herein, a new PVK-based thermochromic composite is demonstrated. It can reversibly switch from a transparent state (transmittance > 80%) at room temperature to a colored state (transmittance < 10%) at high temperature, with very fast kinetics, taking only a few seconds to go from the bleached to the colored state (and vice versa). X-ray diffraction, Fourier-transform infrared spectroscopy, differential scanning calometry, rheological, and optical measurements carried out during heating/cooling cycles reveal that thermochromism in the material is based on a reversible process of PVK disassembly/assembly mediated by intercalating polymeric chains, through the formation and breaking of hydrogen bonds between polymer and perovskite. Therefore, differently from other thermochromic perovskites, that generally work with the adsorption/desorption of volatile molecules, the system is able to perform several heating/cooling cycles regardless of environmental conditions. The color and transition temperature (from 70 to 120 °C) can be tuned depending on the type of perovskite. Moreover, this thermochromic material is printable and can be deposited by cheap techniques, paving the way for a new class of smart coatings with an unprecedented range of colors.
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Affiliation(s)
- Marco Cinquino
- CNR NANOTEC - Institute of Nanotechnology, Nationa Research Council, c/o Campus Ecotekne, Via Monteroni, Lecce, 73100, Italy
- Dipartimento di Matematica e Fisica E. De Giorgi, Università Del Salento, Campus Ecotekne, via Monteroni, Lecce, 73100, Italy
| | - Carmela Tania Prontera
- CNR NANOTEC - Institute of Nanotechnology, Nationa Research Council, c/o Campus Ecotekne, Via Monteroni, Lecce, 73100, Italy
| | - Antonella Giuri
- CNR NANOTEC - Institute of Nanotechnology, Nationa Research Council, c/o Campus Ecotekne, Via Monteroni, Lecce, 73100, Italy
| | - Marco Pugliese
- CNR NANOTEC - Institute of Nanotechnology, Nationa Research Council, c/o Campus Ecotekne, Via Monteroni, Lecce, 73100, Italy
| | - Roberto Giannuzzi
- CNR NANOTEC - Institute of Nanotechnology, Nationa Research Council, c/o Campus Ecotekne, Via Monteroni, Lecce, 73100, Italy
- Dipartimento di Matematica e Fisica E. De Giorgi, Università Del Salento, Campus Ecotekne, via Monteroni, Lecce, 73100, Italy
| | - Antonio Maggiore
- CNR NANOTEC - Institute of Nanotechnology, Nationa Research Council, c/o Campus Ecotekne, Via Monteroni, Lecce, 73100, Italy
| | - Davide Altamura
- Institute of Crystallography, CNR-IC, Via Amendola 122/O, Bari, 70126, Italy
| | - Fabrizio Mariano
- CNR NANOTEC - Institute of Nanotechnology, Nationa Research Council, c/o Campus Ecotekne, Via Monteroni, Lecce, 73100, Italy
| | - Giuseppe Gigli
- CNR NANOTEC - Institute of Nanotechnology, Nationa Research Council, c/o Campus Ecotekne, Via Monteroni, Lecce, 73100, Italy
- Dipartimento di Matematica e Fisica E. De Giorgi, Università Del Salento, Campus Ecotekne, via Monteroni, Lecce, 73100, Italy
| | - Carola Esposito Corcione
- Dipartimento di Ingegneria dell'Innovazione, Università Del Salento, Campus Ecotekne, via Monteroni, Lecce, 73100, Italy
| | - Cinzia Giannini
- Institute of Crystallography, CNR-IC, Via Amendola 122/O, Bari, 70126, Italy
| | - Aurora Rizzo
- CNR NANOTEC - Institute of Nanotechnology, Nationa Research Council, c/o Campus Ecotekne, Via Monteroni, Lecce, 73100, Italy
| | - Luisa De Marco
- CNR NANOTEC - Institute of Nanotechnology, Nationa Research Council, c/o Campus Ecotekne, Via Monteroni, Lecce, 73100, Italy
| | - Vincenzo Maiorano
- CNR NANOTEC - Institute of Nanotechnology, Nationa Research Council, c/o Campus Ecotekne, Via Monteroni, Lecce, 73100, Italy
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3
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Terzi A, Gallo N, Sibillano T, Altamura D, Masi A, Lassandro R, Sannino A, Salvatore L, Bunk O, Giannini C, De Caro L. Travelling through the Natural Hierarchies of Type I Collagen with X-rays: From Tendons of Cattle, Horses, Sheep and Pigs. Materials (Basel) 2023; 16:4753. [PMID: 37445069 DOI: 10.3390/ma16134753] [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] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/26/2023] [Revised: 06/21/2023] [Accepted: 06/28/2023] [Indexed: 07/15/2023]
Abstract
Type I collagen physiological scaffold for tissue regeneration is considered one of the widely used biomaterials for tissue engineering and medical applications. It is hierarchically organized: five laterally staggered molecules are packed within fibrils, arranged into fascicles and bundles. The structural organization is correlated to the direction and intensity of the forces which can be loaded onto the tissue. For a tissue-specific regeneration, the required macro- and microstructure of a suitable biomaterial has been largely investigated. Conversely, the function of multiscale structural integrity has been much less explored but is crucial for scaffold design and application. In this work, collagen was extracted from different animal sources with protocols that alter its structure. Collagen of tendon shreds excised from cattle, horse, sheep and pig was structurally investigated by wide- and small-angle X-ray scattering techniques, at both molecular and supramolecular scales, and thermo-mechanically with thermal and load-bearing tests. Tendons were selected because of their resistance to chemical degradation and mechanical stresses. The multiscale structural integrity of tendons' collagen was studied in relation to the animal source, anatomic location and source for collagen extraction.
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Affiliation(s)
- Alberta Terzi
- Institute of Crystallography, National Research Council, 70125 Bari, Italy
| | - Nunzia Gallo
- Department of Engineering for Innovation, University of Salento, 73100 Lecce, Italy
| | - Teresa Sibillano
- Institute of Crystallography, National Research Council, 70125 Bari, Italy
| | - Davide Altamura
- Institute of Crystallography, National Research Council, 70125 Bari, Italy
| | - Annalia Masi
- Department of Engineering for Innovation, University of Salento, 73100 Lecce, Italy
| | - Rocco Lassandro
- Institute of Crystallography, National Research Council, 70125 Bari, Italy
| | - Alessandro Sannino
- Department of Engineering for Innovation, University of Salento, 73100 Lecce, Italy
| | - Luca Salvatore
- Department of Engineering for Innovation, University of Salento, 73100 Lecce, Italy
- Typeone Biomaterials Srl, Via Europa 167, 73021 Calimera, Italy
| | - Oliver Bunk
- Paul Scherrer Institute, 5232 Villigen PSI, Switzerland
| | - Cinzia Giannini
- Institute of Crystallography, National Research Council, 70125 Bari, Italy
| | - Liberato De Caro
- Institute of Crystallography, National Research Council, 70125 Bari, Italy
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4
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Cadamuro F, Marongiu L, Marino M, Tamini N, Nespoli L, Zucchini N, Terzi A, Altamura D, Gao Z, Giannini C, Bindi G, Smith A, Magni F, Bertini S, Granucci F, Nicotra F, Russo L. 3D bioprinted colorectal cancer models based on hyaluronic acid and signalling glycans. Carbohydr Polym 2023; 302:120395. [PMID: 36604073 DOI: 10.1016/j.carbpol.2022.120395] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [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: 09/29/2022] [Revised: 11/21/2022] [Accepted: 11/22/2022] [Indexed: 12/03/2022]
Abstract
In cancer microenvironment, aberrant glycosylation events of ECM proteins and cell surface receptors occur. We developed a protocol to generate 3D bioprinted models of colorectal cancer (CRC) crosslinking hyaluronic acid and gelatin functionalized with three signalling glycans characterized in CRC, 3'-Sialylgalactose, 6'-Sialylgalactose and 2'-Fucosylgalactose. The crosslinking, performed exploiting azide functionalized gelatin and hyaluronic acid and 4arm-PEG-dibenzocyclooctyne, resulted in biocompatible hydrogels that were 3D bioprinted with commercial CRC cells HT-29 and patient derived CRC tumoroids. The glycosylated hydrogels showed good 3D printability, biocompatibility and stability over the time. SEM and synchrotron radiation SAXS/WAXS analysis revealed the influence of glycosylation in the construct morphology, whereas MALDI-MS imaging showed that protein profiles of tumoroid cells vary with glycosylation, indicating that sialylation and fucosylation of ECM proteins induce diverse alterations to the proteome of the tumoroid and surrounding cells.
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Affiliation(s)
- Francesca Cadamuro
- Department of Biotechnology and Biosciences, University of Milano-Bicocca, 20126 Milan, Italy.
| | - Laura Marongiu
- Department of Biotechnology and Biosciences, University of Milano-Bicocca, 20126 Milan, Italy.
| | - Michele Marino
- Department of Civil Engineering and Computer Science, University of Rome Tor Vergata, 00133 Rome, Italy.
| | - Nicolò Tamini
- School of Medicine and Surgery, University of Milano-Bicocca, 20126 Milan, Italy; ASST San Gerardo Hospital, 20900 Monza, Italy
| | - Luca Nespoli
- School of Medicine and Surgery, University of Milano-Bicocca, 20126 Milan, Italy; ASST San Gerardo Hospital, 20900 Monza, Italy.
| | | | - Alberta Terzi
- Institute of Crystallography, National Research Council, v. Amendola 122/O, 70126 Bari, Italy.
| | - Davide Altamura
- Institute of Crystallography, National Research Council, v. Amendola 122/O, 70126 Bari, Italy.
| | - Zirui Gao
- Paul Scherrer Institute, Villigen PSI 5232, Switzerland.
| | - Cinzia Giannini
- Institute of Crystallography, National Research Council, v. Amendola 122/O, 70126 Bari, Italy.
| | - Greta Bindi
- Department of Medicine and Surgery, Proteomics and Metabolomics Unit, University of Milano-Bicocca, 20854 Vedano al Lambro, Italy.
| | - Andrew Smith
- Department of Medicine and Surgery, Proteomics and Metabolomics Unit, University of Milano-Bicocca, 20854 Vedano al Lambro, Italy.
| | - Fulvio Magni
- Department of Medicine and Surgery, Proteomics and Metabolomics Unit, University of Milano-Bicocca, 20854 Vedano al Lambro, Italy.
| | - Sabrina Bertini
- G. Ronzoni Institute for Chemical and Biochemical Research, 20133 Milan, Italy.
| | - Francesca Granucci
- Department of Biotechnology and Biosciences, University of Milano-Bicocca, 20126 Milan, Italy.
| | - Francesco Nicotra
- Department of Biotechnology and Biosciences, University of Milano-Bicocca, 20126 Milan, Italy.
| | - Laura Russo
- Department of Biotechnology and Biosciences, University of Milano-Bicocca, 20126 Milan, Italy; CÚRAM, SFI Research Centre for Medical Devices, National University of Ireland Galway, H91TK33 Galway, Ireland.
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5
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Zhang B, Altamura D, Caliandro R, Giannini C, Peng L, De Trizio L, Manna L. Stable CsPbBr 3 Nanoclusters Feature a Disk-like Shape and a Distorted Orthorhombic Structure. J Am Chem Soc 2022; 144:5059-5066. [PMID: 35258285 PMCID: PMC8949727 DOI: 10.1021/jacs.1c13544] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [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] [Indexed: 01/16/2023]
Abstract
![]()
CsPbBr3 nanoclusters have been synthesized by several
groups and mostly employed as single-source precursors for the synthesis
of anisotropic perovskite nanostructures or perovskite-based heterostructures.
Yet, a detailed characterization of such clusters is still lacking
due to their high instability. In this work, we were able to stabilize
CsPbBr3 nanoclusters by carefully selecting ad hoc ligands
(benzoic acid together with oleylamine) to passivate their surface.
The clusters have a narrow absorption peak at 400 nm, a band-edge
emission peaked at 410 nm at room temperature, and their composition
is identified as CsPbBr2.3. Synchrotron X-ray pair distribution
function measurements indicate that the clusters exhibit a disk-like
shape with a thickness smaller than 2 nm and a diameter of 13 nm,
and their crystal structure is a highly distorted orthorhombic CsPbBr3. Based on small- and wide-angle X-ray scattering analyses,
the clusters tend to form a two-dimensional (2D) hexagonal packing
with a short-range order and a lamellar packing with a long-range
order.
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Affiliation(s)
- Baowei Zhang
- Nanochemistry Department, Istituto Italiano di Tecnologia (IIT), via Morego 30, 16163 Genova, Italy.,Dipartimento di Chimica e Chimica Industriale, Università degli Studi di Genova, Via Dodecaneso 31, 16146 Genova, Italy
| | - Davide Altamura
- Istituto di Cristallografia, Consiglio Nazionale delle Ricerche (IC-CNR), Via Amendola 122/O, 70126 Bari, Italy
| | - Rocco Caliandro
- Istituto di Cristallografia, Consiglio Nazionale delle Ricerche (IC-CNR), Via Amendola 122/O, 70126 Bari, Italy
| | - Cinzia Giannini
- Istituto di Cristallografia, Consiglio Nazionale delle Ricerche (IC-CNR), Via Amendola 122/O, 70126 Bari, Italy
| | - Lucheng Peng
- Nanochemistry Department, Istituto Italiano di Tecnologia (IIT), via Morego 30, 16163 Genova, Italy
| | - Luca De Trizio
- Nanochemistry Department, Istituto Italiano di Tecnologia (IIT), via Morego 30, 16163 Genova, Italy
| | - Liberato Manna
- Nanochemistry Department, Istituto Italiano di Tecnologia (IIT), via Morego 30, 16163 Genova, Italy
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6
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De Caro L, Terzi A, Fusaro L, Altamura D, Boccafoschi F, Bunk O, Giannini C. Time scale of glycation in collagen of bovine pericardium-derived bio-tissues. IUCrJ 2021; 8:1024-1034. [PMID: 34804554 PMCID: PMC8562672 DOI: 10.1107/s2052252521010344] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/26/2021] [Accepted: 10/06/2021] [Indexed: 06/13/2023]
Abstract
Glycosyl-ation is the process of combining one or more glucose molecules (or other monosaccharides) with molecules of a different nature (which are therefore glycosyl-ated). In biochemistry, glycosyl-ation is catalyzed by several specific enzymes, and assumes considerable importance since it occurs mainly at the expense of proteins and phospho-lipids which are thus transformed into glycoproteins and glycolipids. Conversely, in diabetes and aging, glycation of proteins is a phenomenon of non-enzymatic nature and thus not easily controlled. Glycation of collagen distorts its structure, renders the extracellular matrix stiff and brittle and at the same time lowers the degradation susceptibility thereby preventing renewal. Based on models detailed in this paper and with parameters determined from experimental data, we describe the glycation of type 1 collagen in bovine pericardium derived bio-tissues, upon incubation in glucose and ribose. With arginine and lysine/hy-droxy-lysine amino acids as the primary sites of glycation and assuming that the topological polar surface area of the sugar molecules determines the glycation rates, we modelled the glycation as a function of time and determined the glycation rate and thus the progression of glycation as well as the resulting volume increase.
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Affiliation(s)
- Liberato De Caro
- Institute of Crystallography, National Research Council, via Amendola 122/O, Bari 70126, Italy
| | - Alberta Terzi
- Institute of Crystallography, National Research Council, via Amendola 122/O, Bari 70126, Italy
| | - Luca Fusaro
- Department of Health Sciences, University of Piemonte Orientale, Novara Italy
- Tissuegraft srl., Novara Italy
| | - Davide Altamura
- Institute of Crystallography, National Research Council, via Amendola 122/O, Bari 70126, Italy
| | - Francesca Boccafoschi
- Institute of Crystallography, National Research Council, via Amendola 122/O, Bari 70126, Italy
- Department of Health Sciences, University of Piemonte Orientale, Novara Italy
| | - Oliver Bunk
- Paul Scherrer Institut, 5232 Villigen, PSI Switzerland
| | - Cinzia Giannini
- Institute of Crystallography, National Research Council, via Amendola 122/O, Bari 70126, Italy
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Scarfiello R, Mazzotta E, Altamura D, Nobile C, Mastria R, Rella S, Giannini C, Cozzoli PD, Rizzo A, Malitesta C. An Insight into Chemistry and Structure of Colloidal 2D-WS 2 Nanoflakes: Combined XPS and XRD Study. Nanomaterials (Basel) 2021; 11:1969. [PMID: 34443800 PMCID: PMC8398905 DOI: 10.3390/nano11081969] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/04/2021] [Revised: 06/18/2021] [Accepted: 06/24/2021] [Indexed: 11/16/2022]
Abstract
The surface and structural characterization techniques of three atom-thick bi-dimensional 2D-WS2 colloidal nanocrystals cross the limit of bulk investigation, offering the possibility of simultaneous phase identification, structural-to-morphological evaluation, and surface chemical description. In the present study, we report a rational understanding based on X-ray photoelectron spectroscopy (XPS) and structural inspection of two kinds of dimensionally controllable 2D-WS2 colloidal nanoflakes (NFLs) generated with a surfactant assisted non-hydrolytic route. The qualitative and quantitative determination of 1T' and 2H phases based on W 4f XPS signal components, together with the presence of two kinds of sulfur ions, S22- and S2-, based on S 2p signal and related to the formation of WS2 and WOxSy in a mixed oxygen-sulfur environment, are carefully reported and discussed for both nanocrystals breeds. The XPS results are used as an input for detailed X-ray Diffraction (XRD) analysis allowing for a clear discrimination of NFLs crystal habit, and an estimation of the exact number of atomic monolayers composing the 2D-WS2 nanocrystalline samples.
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Affiliation(s)
- Riccardo Scarfiello
- Institute of Nanotechnology, Campus Ecotekne, CNR NANOTEC, via Monteroni, 73100 Lecce, Italy; (R.S.); (C.N.); (R.M.); (A.R.)
| | - Elisabetta Mazzotta
- Department of Biological and Environmental Sciences and Technologies, Campus Ecotekne, University of Salento, via Monteroni, 73100 Lecce, Italy;
| | - Davide Altamura
- Institute of Crystallography, IC CNR, via Amendola 122/O, 70126 Bari, Italy; (D.A.); (C.G.)
| | - Concetta Nobile
- Institute of Nanotechnology, Campus Ecotekne, CNR NANOTEC, via Monteroni, 73100 Lecce, Italy; (R.S.); (C.N.); (R.M.); (A.R.)
| | - Rosanna Mastria
- Institute of Nanotechnology, Campus Ecotekne, CNR NANOTEC, via Monteroni, 73100 Lecce, Italy; (R.S.); (C.N.); (R.M.); (A.R.)
| | - Simona Rella
- Department of Biological and Environmental Sciences and Technologies, Campus Ecotekne, University of Salento, via Monteroni, 73100 Lecce, Italy;
| | - Cinzia Giannini
- Institute of Crystallography, IC CNR, via Amendola 122/O, 70126 Bari, Italy; (D.A.); (C.G.)
| | - Pantaleo Davide Cozzoli
- Department of Mathematics and Physics “E. De Giorgi”, Campus Ecotekne, University of Salento, via Arnesano, 73100 Lecce, Italy;
- UdR INSTM di Lecce, c/o, Campus Ecotekne, Universy of Salento, via Arnesano, 73100 Lecce, Italy
| | - Aurora Rizzo
- Institute of Nanotechnology, Campus Ecotekne, CNR NANOTEC, via Monteroni, 73100 Lecce, Italy; (R.S.); (C.N.); (R.M.); (A.R.)
| | - Cosimino Malitesta
- Department of Biological and Environmental Sciences and Technologies, Campus Ecotekne, University of Salento, via Monteroni, 73100 Lecce, Italy;
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8
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Giannini C, De Caro L, Terzi A, Fusaro L, Altamura D, Diaz A, Lassandro R, Boccafoschi F, Bunk O. Decellularized pericardium tissues at increasing glucose, galactose and ribose concentrations and at different time points studied using scanning X-ray microscopy. IUCrJ 2021; 8:621-632. [PMID: 34258010 PMCID: PMC8256709 DOI: 10.1107/s2052252521005054] [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] [Subscribe] [Scholar Register] [Received: 01/25/2021] [Accepted: 05/12/2021] [Indexed: 05/13/2023]
Abstract
Diseases like widespread diabetes or rare galactosemia may lead to high sugar concentrations in the human body, thereby promoting the formation of glycoconjugates. Glycation of collagen, i.e. the formation of glucose bridges, is nonenzymatic and therefore cannot be prevented in any other way than keeping the sugar level low. It relates to secondary diseases, abundantly occurring in aging populations and diabetics. However, little is known about the effects of glycation of collagen on the molecular level. We studied in vitro the effect of glycation, with d-glucose and d-galactose as well as d-ribose, on the structure of type 1 collagen by preparing decellularized matrices of bovine pericardia soaked in different sugar solutions, at increasing concentrations (0, 2.5, 5, 10, 20 and 40 mg ml-1), and incubated at 37°C for 3, 14, 30 and 90 days. The tissue samples were analyzed with small- and wide-angle X-ray scattering in scanning mode. We found that glucose and galactose produce similar changes in collagen, i.e. they mainly affect the lateral packing between macromolecules. However, ribose is much faster in glycation, provoking a larger effect on the lateral packing, but also seems to cause qualitatively different effects on the collagen structure.
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Affiliation(s)
- Cinzia Giannini
- Institute of Crystallography, National Research Council, Bari, 70126, Italy
| | - Liberato De Caro
- Institute of Crystallography, National Research Council, Bari, 70126, Italy
| | - Alberta Terzi
- Institute of Crystallography, National Research Council, Bari, 70126, Italy
| | - Luca Fusaro
- Department of Health Sciences, University of Piemonte Orientale, Novara, Italy
- Tissuegraft srl., Novara, Italy
| | - Davide Altamura
- Institute of Crystallography, National Research Council, Bari, 70126, Italy
| | - Ana Diaz
- Paul Scherrer Institut, Villigen PSI, 5232, Switzerland
| | - Rocco Lassandro
- Institute of Crystallography, National Research Council, Bari, 70126, Italy
| | - Francesca Boccafoschi
- Institute of Crystallography, National Research Council, Bari, 70126, Italy
- Department of Health Sciences, University of Piemonte Orientale, Novara, Italy
| | - Oliver Bunk
- Paul Scherrer Institut, Villigen PSI, 5232, Switzerland
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9
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Grisorio R, Conelli D, Fanizza E, Striccoli M, Altamura D, Giannini C, Allegretta I, Terzano R, Irimia-Vladu M, Margiotta N, Suranna GP. Size-tunable and stable cesium lead-bromide perovskite nanocubes with near-unity photoluminescence quantum yield. Nanoscale Adv 2021; 3:3918-3928. [PMID: 36133008 PMCID: PMC9418815 DOI: 10.1039/d1na00142f] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/23/2021] [Accepted: 05/06/2021] [Indexed: 05/05/2023]
Abstract
Stable cesium lead bromide perovskite nanocrystals (NCs) showing a near-unity photoluminescence quantum yield (PLQY), narrow emission profile, and tunable fluorescence peak in the green region can be considered the ideal class of nanomaterials for optoelectronic applications. However, a general route for ensuring the desired features of the perovskite NCs is still missing. In this paper, we propose a synthetic protocol for obtaining near-unity PLQY perovskite nanocubes, ensuring their size control and, consequently, a narrow and intense emission through the modification of the reaction temperature and the suitable combination ratio of the perovskite constituting elements. The peculiarity of this protocol is represented by the dissolution of the lead precursor (PbBr2) as a consequence of the exclusive complexation with the bromide anions released by the in situ SN2 reaction between oleylamine (the only surfactant introduced in the reaction mixture) and 1-bromohexane. The obtained CsPbBr3 nanocubes exhibit variable size (ranging from 6.7 ± 0.7 nm to 15.2 ± 1.2 nm), PL maxima between 505 and 517 nm, and near-unity PLQY with a narrow emission profile (fwhm of 17-19 nm). Additionally, the NCs synthesized with this approach preserve their high PLQYs even after 90 days of storage under ambient conditions, thus displaying a remarkable optical stability. Through the rationalization of the obtained results, the proposed synthetic protocol provides a new ground for the direct preparation of differently structured perovskite NCs without resorting to any additional post-synthetic treatment for improving their emission efficiency and stability.
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Affiliation(s)
- Roberto Grisorio
- Dipartimento di Ingegneria Civile, Ambientale, del Territorio, Edile e di Chimica (DICATECh), Politecnico di Bari Via Orabona 4 70125 Bari Italy
| | - Daniele Conelli
- Dipartimento di Ingegneria Civile, Ambientale, del Territorio, Edile e di Chimica (DICATECh), Politecnico di Bari Via Orabona 4 70125 Bari Italy
| | - Elisabetta Fanizza
- Dipartimento di Chimica, Università degli Studi di Bari, ", A. Moro, " Via Orabona 4 70126 Bari Italy
- CNR, Istituto per i Processi Chimico Fisici UOS Bari, Via Orabona 4 70126 Bari Italy
| | - Marinella Striccoli
- CNR, Istituto per i Processi Chimico Fisici UOS Bari, Via Orabona 4 70126 Bari Italy
| | - Davide Altamura
- CNR, Istituto di Cristallografia via Amendola 122/O Bari 70126 Italy
| | - Cinzia Giannini
- CNR, Istituto di Cristallografia via Amendola 122/O Bari 70126 Italy
| | - Ignazio Allegretta
- Dipartimento di Scienze del Suolo, della Pianta e degli Alimenti, Università degli Studi di Bari "Aldo Moro" Via G. Amendola 165/A 70126 Bari Italy
| | - Roberto Terzano
- Dipartimento di Scienze del Suolo, della Pianta e degli Alimenti, Università degli Studi di Bari "Aldo Moro" Via G. Amendola 165/A 70126 Bari Italy
| | - Mihai Irimia-Vladu
- Institute of Physical Chemistry, Linz Institute of Organic Solar Cells, Johannes Kepler University Linz Altenberger Straße 69 4040 Linz Austria
| | - Nicola Margiotta
- Dipartimento di Chimica, Università degli Studi di Bari, ", A. Moro, " Via Orabona 4 70126 Bari Italy
| | - Gian Paolo Suranna
- Dipartimento di Ingegneria Civile, Ambientale, del Territorio, Edile e di Chimica (DICATECh), Politecnico di Bari Via Orabona 4 70125 Bari Italy
- CNR NANOTEC, Istituto di Nanotecnologia Via Monteroni 73100 Lecce Italy
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10
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Toso S, Baranov D, Altamura D, Scattarella F, Dahl J, Wang X, Marras S, Alivisatos AP, Singer A, Giannini C, Manna L. Multilayer Diffraction Reveals That Colloidal Superlattices Approach the Structural Perfection of Single Crystals. ACS Nano 2021; 15:6243-6256. [PMID: 33481560 PMCID: PMC8155329 DOI: 10.1021/acsnano.0c08929] [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] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/26/2020] [Accepted: 01/13/2021] [Indexed: 05/06/2023]
Abstract
Colloidal superlattices are fascinating materials made of ordered nanocrystals, yet they are rarely called "atomically precise". That is unsurprising, given how challenging it is to quantify the degree of structural order in these materials. However, once that order crosses a certain threshold, the constructive interference of X-rays diffracted by the nanocrystals dominates the diffraction pattern, offering a wealth of structural information. By treating nanocrystals as scattering sources forming a self-probing interferometer, we developed a multilayer diffraction method that enabled the accurate determination of the nanocrystal size, interparticle spacing, and their fluctuations for samples of self-assembled CsPbBr3 and PbS nanomaterials. The multilayer diffraction method requires only a laboratory-grade diffractometer and an open-source fitting algorithm for data analysis. The average nanocrystal displacement of 0.33 to 1.43 Å in the studied superlattices provides a figure of merit for their structural perfection and approaches the atomic displacement parameters found in traditional crystals.
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Affiliation(s)
- Stefano Toso
- Nanochemistry
Department, Istituto Italiano di Tecnologia, Via Morego 30, 16163 Genova, Italy
- International
Doctoral Program in Science, Università
Cattolica del Sacro Cuore, 25121 Brescia, Italy
| | - Dmitry Baranov
- Nanochemistry
Department, Istituto Italiano di Tecnologia, Via Morego 30, 16163 Genova, Italy
| | - Davide Altamura
- Istituto
di Cristallografia - Consiglio Nazionale delle Ricerche (IC−CNR), Via Amendola 122/O, I-70126 Bari, Italy
| | - Francesco Scattarella
- Istituto
di Cristallografia - Consiglio Nazionale delle Ricerche (IC−CNR), Via Amendola 122/O, I-70126 Bari, Italy
| | - Jakob Dahl
- Department
of Chemistry, University of California Berkeley, Berkeley, California 94720, United States
- Materials
Sciences Division, Lawrence Berkeley National
Laboratory, Berkeley, California 94720, United States
| | - Xingzhi Wang
- Department
of Chemistry, University of California Berkeley, Berkeley, California 94720, United States
- Materials
Sciences Division, Lawrence Berkeley National
Laboratory, Berkeley, California 94720, United States
| | - Sergio Marras
- Materials
Characterization Facility, Istituto Italiano
di Tecnologia, Via Morego 30, 16163 Genova, Italy
| | - A. Paul Alivisatos
- Department
of Chemistry, University of California Berkeley, Berkeley, California 94720, United States
- Materials
Sciences Division, Lawrence Berkeley National
Laboratory, Berkeley, California 94720, United States
- Department
of Materials Science and Engineering, University
of California Berkeley, Berkeley, California 94720, United States
- Kavli
Energy NanoScience Institute, Berkeley, California 94720, United States
| | - Andrej Singer
- Department
of Materials Science and Engineering, Cornell
University, Ithaca, New York 14850, United States
| | - Cinzia Giannini
- Istituto
di Cristallografia - Consiglio Nazionale delle Ricerche (IC−CNR), Via Amendola 122/O, I-70126 Bari, Italy
| | - Liberato Manna
- Nanochemistry
Department, Istituto Italiano di Tecnologia, Via Morego 30, 16163 Genova, Italy
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11
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Toso S, Baranov D, Altamura D, Scattarella F, Dahl J, Wang X, Marras S, Alivisatos AP, Singer A, Giannini C, Manna L. Multilayer Diffraction Reveals That Colloidal Superlattices Approach the Structural Perfection of Single Crystals. ACS Nano 2021; 15:6243-6256. [PMID: 33481560 DOI: 10.26434/chemrxiv.13103507.v1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
Abstract
Colloidal superlattices are fascinating materials made of ordered nanocrystals, yet they are rarely called "atomically precise". That is unsurprising, given how challenging it is to quantify the degree of structural order in these materials. However, once that order crosses a certain threshold, the constructive interference of X-rays diffracted by the nanocrystals dominates the diffraction pattern, offering a wealth of structural information. By treating nanocrystals as scattering sources forming a self-probing interferometer, we developed a multilayer diffraction method that enabled the accurate determination of the nanocrystal size, interparticle spacing, and their fluctuations for samples of self-assembled CsPbBr3 and PbS nanomaterials. The multilayer diffraction method requires only a laboratory-grade diffractometer and an open-source fitting algorithm for data analysis. The average nanocrystal displacement of 0.33 to 1.43 Å in the studied superlattices provides a figure of merit for their structural perfection and approaches the atomic displacement parameters found in traditional crystals.
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Affiliation(s)
- Stefano Toso
- Nanochemistry Department, Istituto Italiano di Tecnologia, Via Morego 30, 16163 Genova, Italy
- International Doctoral Program in Science, Università Cattolica del Sacro Cuore, 25121 Brescia, Italy
| | - Dmitry Baranov
- Nanochemistry Department, Istituto Italiano di Tecnologia, Via Morego 30, 16163 Genova, Italy
| | - Davide Altamura
- Istituto di Cristallografia - Consiglio Nazionale delle Ricerche (IC-CNR), Via Amendola 122/O, I-70126 Bari, Italy
| | - Francesco Scattarella
- Istituto di Cristallografia - Consiglio Nazionale delle Ricerche (IC-CNR), Via Amendola 122/O, I-70126 Bari, Italy
| | - Jakob Dahl
- Department of Chemistry, University of California Berkeley, Berkeley, California 94720, United States
- Materials Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States
| | - Xingzhi Wang
- Department of Chemistry, University of California Berkeley, Berkeley, California 94720, United States
- Materials Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States
| | - Sergio Marras
- Materials Characterization Facility, Istituto Italiano di Tecnologia, Via Morego 30, 16163 Genova, Italy
| | - A Paul Alivisatos
- Department of Chemistry, University of California Berkeley, Berkeley, California 94720, United States
- Materials Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States
- Department of Materials Science and Engineering, University of California Berkeley, Berkeley, California 94720, United States
- Kavli Energy NanoScience Institute, Berkeley, California 94720, United States
| | - Andrej Singer
- Department of Materials Science and Engineering, Cornell University, Ithaca, New York 14850, United States
| | - Cinzia Giannini
- Istituto di Cristallografia - Consiglio Nazionale delle Ricerche (IC-CNR), Via Amendola 122/O, I-70126 Bari, Italy
| | - Liberato Manna
- Nanochemistry Department, Istituto Italiano di Tecnologia, Via Morego 30, 16163 Genova, Italy
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12
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Scattarella F, Altamura E, Albanese P, Siliqi D, Ladisa M, Mavelli F, Giannini C, Altamura D. Table-top combined scanning X-ray small angle scattering and transmission microscopies of lipid vesicles dispersed in free-standing gel. RSC Adv 2020; 11:484-492. [PMID: 35423036 PMCID: PMC8690998 DOI: 10.1039/d0ra08581b] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2020] [Accepted: 12/04/2020] [Indexed: 12/15/2022] Open
Abstract
A mm thick free-standing gel containing lipid vesicles made of 2-oleoyl-1-palmitoyl-sn-glycero-3-phosphocholine (POPC) was studied by scanning Small Angle X-ray Scattering (SAXS) and X-ray Transmission (XT) microscopies. Raster scanning relatively large volumes, besides reducing the risk of radiation damage, allows signal integration, improving the signal-to-noise ratio (SNR), as well as high statistical significance of the dataset. The persistence of lipid vesicles in gel was demonstrated, while mapping their spatial distribution and concentration gradients. Information about lipid aggregation and packing, as well as about gel density gradients, was obtained. A posteriori confirmation of lipid presence in well-defined sample areas was obtained by studying the dried sample, featuring clear Bragg peaks from stacked bilayers. The comparison between wet and dry samples allowed it to be proved that lipids do not significantly migrate within the gel even upon drying, whereas bilayer curvature is lost by removing water, resulting in lipids packed in ordered lamellae. Suitable algorithms were successfully employed for enhancing transmission microscopy sensitivity to low absorbing objects, and allowing full SAXS intensity normalization as a general approach. In particular, data reduction includes normalization of the SAXS intensity against the local sample thickness derived from absorption contrast maps. The proposed study was demonstrated by a room-sized instrumentation, although equipped with a high brilliance X-ray micro-source, and is expected to be applicable to a wide variety of organic, inorganic, and multicomponent systems, including biomaterials. The employed routines for data reduction and microscopy, including Gaussian filter for contrast enhancement of low absorbing objects and a region growing segmentation algorithm to exclude no-sample regions, have been implemented and made freely available through the updated in-house developed software SUNBIM.
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Affiliation(s)
| | - Emiliano Altamura
- Chemistry Department University of Bari Aldo Moro via Orabona 4 70125 Bari Italy
| | - Paola Albanese
- Chemistry Department University of Bari Aldo Moro via Orabona 4 70125 Bari Italy
| | - Dritan Siliqi
- Istituto di Cristallografia - CNR Via Amendola 122/O 70126 Bari Italy
| | - Massimo Ladisa
- Istituto di Cristallografia - CNR Via Amendola 122/O 70126 Bari Italy
| | - Fabio Mavelli
- Chemistry Department University of Bari Aldo Moro via Orabona 4 70125 Bari Italy
| | - Cinzia Giannini
- Istituto di Cristallografia - CNR Via Amendola 122/O 70126 Bari Italy
| | - Davide Altamura
- Istituto di Cristallografia - CNR Via Amendola 122/O 70126 Bari Italy
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13
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Montes-de-Oca-Ávalos JM, Altamura D, Herrera ML, Huck-Iriart C, Scattarella F, Siliqi D, Giannini C, Candal RJ. Physical and structural properties of whey protein concentrate - Corn oil - TiO2 nanocomposite films for edible food-packaging. Food Packag Shelf Life 2020. [DOI: 10.1016/j.fpsl.2020.100590] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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14
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Zhang P, Moretti M, Allione M, Tian Y, Ordonez-Loza J, Altamura D, Giannini C, Torre B, Das G, Li E, Thoroddsen ST, Sarathy SM, Autiero I, Giugni A, Gentile F, Malara N, Marini M, Di Fabrizio E. A droplet reactor on a super-hydrophobic surface allows control and characterization of amyloid fibril growth. Commun Biol 2020; 3:457. [PMID: 32820203 PMCID: PMC7441408 DOI: 10.1038/s42003-020-01187-7] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [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: 01/21/2020] [Accepted: 07/31/2020] [Indexed: 11/10/2022] Open
Abstract
Methods to produce protein amyloid fibrils, in vitro, and in situ structure characterization, are of primary importance in biology, medicine, and pharmacology. We first demonstrated the droplet on a super-hydrophobic substrate as the reactor to produce protein amyloid fibrils with real-time monitoring of the growth process by using combined light-sheet microscopy and thermal imaging. The molecular structures were characterized by Raman spectroscopy, X-ray diffraction and X-ray scattering. We demonstrated that the convective flow induced by the temperature gradient of the sample is the main driving force in the growth of well-ordered protein fibrils. Particular attention was devoted to PHF6 peptide and full-length Tau441 protein to form amyloid fibrils. By a combined experimental with the molecular dynamics simulations, the conformational polymorphism of these amyloid fibrils were characterized. The study provided a feasible procedure to optimize the amyloid fibrils formation and characterizations of other types of proteins in future studies. Zhang et al present an integrated real-time imaging and flow field control platform based on water droplet evaporation on super-hydrophobic substrate (SHS) to enable amyloid fibril aggregation. They apply this methodology to observe structural polymorphism in PHF6 peptide and full length Tau441.
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Affiliation(s)
- Peng Zhang
- SMILEs Lab, Physical Science and Engineering (PSE) and Biological and Environmental Science and Engineering (BESE) Divisions, King Abdullah University of Science and Technology, Thuwal, 23955-6900, Saudi Arabia
| | - Manola Moretti
- SMILEs Lab, Physical Science and Engineering (PSE) and Biological and Environmental Science and Engineering (BESE) Divisions, King Abdullah University of Science and Technology, Thuwal, 23955-6900, Saudi Arabia
| | - Marco Allione
- SMILEs Lab, Physical Science and Engineering (PSE) and Biological and Environmental Science and Engineering (BESE) Divisions, King Abdullah University of Science and Technology, Thuwal, 23955-6900, Saudi Arabia
| | - Yuansi Tian
- High-Speed Fluids Imaging Lab, Physical Science and Engineering (PSE) Division, King Abdullah University of Science and Technology, Thuwal, 23955-6900, Saudi Arabia
| | - Javier Ordonez-Loza
- Clean Combustion Research Center, Physical Science and Engineering (PSE) Division, King Abdullah University of Science and Technology, Thuwal, 23955-6900, Saudi Arabia
| | - Davide Altamura
- Istituto di Cristallografia - Consiglio Nazionale delle Ricerche (IC-CNR), Via Amendola 122/O, 70126, Bari, Italy
| | - Cinzia Giannini
- Istituto di Cristallografia - Consiglio Nazionale delle Ricerche (IC-CNR), Via Amendola 122/O, 70126, Bari, Italy
| | - Bruno Torre
- SMILEs Lab, Physical Science and Engineering (PSE) and Biological and Environmental Science and Engineering (BESE) Divisions, King Abdullah University of Science and Technology, Thuwal, 23955-6900, Saudi Arabia
| | - Gobind Das
- Department of Physics, Khalifa University, P.O. Box: 127788, Abu Dhabi, UAE
| | - Erqiang Li
- Department of Modern Mechanics, University of Science and Technology of China, Hefei, Anhui, 230026, China
| | - Sigurdur T Thoroddsen
- High-Speed Fluids Imaging Lab, Physical Science and Engineering (PSE) Division, King Abdullah University of Science and Technology, Thuwal, 23955-6900, Saudi Arabia
| | - S Mani Sarathy
- Clean Combustion Research Center, Physical Science and Engineering (PSE) Division, King Abdullah University of Science and Technology, Thuwal, 23955-6900, Saudi Arabia
| | - Ida Autiero
- Molecular Horizon, Bettona, Italy.,National Research Council, Institute of Biostructures and Bioimaging, Naples, Italy
| | - Andrea Giugni
- SMILEs Lab, Physical Science and Engineering (PSE) and Biological and Environmental Science and Engineering (BESE) Divisions, King Abdullah University of Science and Technology, Thuwal, 23955-6900, Saudi Arabia
| | - Francesco Gentile
- Department of electrical Engineering and Information Technology, University Federico II, Naples, Italy
| | - Natalia Malara
- BIONEM lab, University Magna Graecia, Campus Salvatore Venuta, Viale Europa, 88100, Catanzaro, Italy
| | - Monica Marini
- Materials and Microsystems Laboratory, Department of Applied Science and Technology, Politecnico di Torino, 10129, Torino, Italy
| | - Enzo Di Fabrizio
- SMILEs Lab, Physical Science and Engineering (PSE) and Biological and Environmental Science and Engineering (BESE) Divisions, King Abdullah University of Science and Technology, Thuwal, 23955-6900, Saudi Arabia. .,Materials and Microsystems Laboratory, Department of Applied Science and Technology, Politecnico di Torino, 10129, Torino, Italy.
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15
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Grisorio R, Conelli D, Giannelli R, Fanizza E, Striccoli M, Altamura D, Giannini C, Allegretta I, Terzano R, Suranna GP. A new route for the shape differentiation of cesium lead bromide perovskite nanocrystals with near-unity photoluminescence quantum yield. Nanoscale 2020; 12:17053-17063. [PMID: 32785320 DOI: 10.1039/d0nr04246c] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/20/2023]
Abstract
The ongoing interest in all-inorganic cesium lead bromide perovskite nanocrystals (CsPbBr3 NCs) is mainly due to their optical properties, in particular their high photoluminescence quantum yields (PLQYs). Three-precursor synthetic methods, in which the sources of the three elements (cesium, lead and bromine) constituting the perovskite scaffold are chemically independent, often succeed in the achievement of near-unity PLQY perovskite NCs. However, this class of synthetic approaches precludes the accessibility to crystal morphologies different from the traditional cuboidal ones. In order to upgrade three-precursor synthetic schemes to obtain more sophisticated morphologies - such as rods - we propose a conceptually original synthetic methodology, in which a potentially controllable stage of the reaction anticipates the fast crystallization promoted by cesium injection. To this purpose, lead oxide, 1-bromohexane (at different molar ratios with respect to lead) and the ligands (oleic acid and a suitable amine) in 1-octadecene are reacted at 160 °C for an incubation period of 30 min before cesium injection. During this stage and at high C6H13Br/PbO molar ratios, the bromide release from reactions between the ligands and 1-bromohexane promotes the evolution of [PbBr(2+n)]n- species as well as of two-dimensional [(RNH3)2(PbBr4)]n structures with a rod-like shape (aspect ratios ∼10). These structures act as the templating agents for the subsequent crystallization promoted by cesium injection, ensuring the formation of near-unity PLQY nanorods in the presence of decylamine. Conversely, the pronounced decomposition of the preformed [(RNH3)2(PbBr4)]n structures preludes to the formation of near-unity PLQY nanocubes in the presence of hexylamine. The amine choice exerts also an important role in the emission stability of the corresponding NCs, since the nanocubes prepared in the presence of hexylamine maintain their near-unity PLQYs up to 90 days under ambient conditions. In addition to the long-term PLQY stability, the nanorods prepared with decylamine also exhibit a remarkable resistance to the presence of water, due to the compact and hydrophobic organic shell passivating the NC surface. These findings can contribute to the development of innovative synthetic methodologies for controlling the shape and stability of near-unity PLQY perovskite NCs.
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Affiliation(s)
- Roberto Grisorio
- Dipartimento di Ingegneria Civile, Ambientale, del Territorio, Edile e di Chimica (DICATECh), Politecnico di Bari, Via Orabona 4, 70125 Bari, Italy.
| | - Daniele Conelli
- Dipartimento di Ingegneria Civile, Ambientale, del Territorio, Edile e di Chimica (DICATECh), Politecnico di Bari, Via Orabona 4, 70125 Bari, Italy.
| | - Rosa Giannelli
- Dipartimento di Ingegneria Civile, Ambientale, del Territorio, Edile e di Chimica (DICATECh), Politecnico di Bari, Via Orabona 4, 70125 Bari, Italy.
| | - Elisabetta Fanizza
- Dipartimento di Chimica, Università degli Studi di Bari "Aldo Moro", Via Orabona 4, 70126 Bari, Italy and CNR - Istituto per i Processi Chimico Fisici, UOS Bari, Via Orabona 4, 70126 Bari, Italy
| | - Marinella Striccoli
- CNR - Istituto per i Processi Chimico Fisici, UOS Bari, Via Orabona 4, 70126 Bari, Italy
| | - Davide Altamura
- CNR - Istituto di Cristallografia, via Amendola 122/O, Bari 70126, Italy
| | - Cinzia Giannini
- CNR - Istituto di Cristallografia, via Amendola 122/O, Bari 70126, Italy
| | - Ignazio Allegretta
- Dipartimento di Scienze del Suolo, della Pianta e degli Alimenti, Università degli Studi di Bari "Aldo Moro", Via G. Amendola 165/A, 70126 Bari, Italy
| | - Roberto Terzano
- Dipartimento di Scienze del Suolo, della Pianta e degli Alimenti, Università degli Studi di Bari "Aldo Moro", Via G. Amendola 165/A, 70126 Bari, Italy
| | - Gian Paolo Suranna
- Dipartimento di Ingegneria Civile, Ambientale, del Territorio, Edile e di Chimica (DICATECh), Politecnico di Bari, Via Orabona 4, 70125 Bari, Italy. and CNR NANOTEC - Istituto di Nanotecnologia, Via Monteroni, 73100 Lecce, Italy
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16
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Moliterni A, Altamura D, Lassandro R, Olieric V, Ferri G, Cardarelli F, Camposeo A, Pisignano D, Anthony JE, Giannini C. Synthesis, crystal structure, polymorphism and microscopic luminescence properties of anthracene derivative compounds. Acta Crystallogr B Struct Sci Cryst Eng Mater 2020; 76:427-435. [PMID: 32831261 DOI: 10.1107/s2052520620004424] [Citation(s) in RCA: 5] [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] [Subscribe] [Scholar Register] [Received: 11/27/2019] [Accepted: 03/31/2020] [Indexed: 06/11/2023]
Abstract
Anthracene derivative compounds are currently investigated because of their unique physical properties (e.g. bright luminescence and emission tunability), which make them ideal candidates for advanced optoelectronic devices. Intermolecular interactions are the basis of the tunability of the optical and electronic properties of these compounds, whose prediction and exploitation benefit from knowledge of the crystal structure and the packing architecture. Polymorphism can occur due to the weak intermolecular interactions, requiring detailed structural analysis to clarify the origin of observed material property modifications. Here, two silylethyne-substituted anthracene compounds are characterized by single-crystal synchrotron X-ray diffraction, identifying a new polymorph in the process. Additionally, laser confocal microscopy and fluorescence lifetime imaging microscopy confirm the results obtained by the X-ray diffraction characterization, i.e. shifting the substituents towards the external benzene rings of the anthracene unit favours π-π interactions, impacting on both the morphology and the microscopic optical properties of the crystals. The compounds with more isolated anthracene units feature shorter lifetime and emission spectra, more similar to those of isolated molecules. The crystallographic study, supported by the optical investigation, sheds light on the influence of non-covalent interactions on the crystal packing and luminescence properties of anthracene derivatives, providing a further step towards their efficient use as building blocks in active components of light sources and photonic networks.
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Affiliation(s)
- Anna Moliterni
- Istituto di Cristallografia, CNR, Via Amendola, 122/O, Bari, 70126, Italy
| | - Davide Altamura
- Istituto di Cristallografia, CNR, Via Amendola, 122/O, Bari, 70126, Italy
| | - Rocco Lassandro
- Istituto di Cristallografia, CNR, Via Amendola, 122/O, Bari, 70126, Italy
| | - Vincent Olieric
- Paul Scherrer Institute, Forschungstrasse 111, Villigen-PSI, 5232, Switzerland
| | - Gianmarco Ferri
- NEST, Scuola Normale Superiore, Piazza San Silvestro 12, Pisa, I-56127, Italy
| | | | - Andrea Camposeo
- NEST, Istituto Nanoscienze, CNR, Piazza San Silvestro 12, Pisa, I-56127, Italy
| | - Dario Pisignano
- NEST, Istituto Nanoscienze, CNR, Piazza San Silvestro 12, Pisa, I-56127, Italy
| | - John E Anthony
- Center for Applied Energy Research, University of Kentucky, Research Park Drive, Lexington, KY 2582, USA
| | - Cinzia Giannini
- Istituto di Cristallografia, CNR, Via Amendola, 122/O, Bari, 70126, Italy
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17
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De Caro L, Scattarella F, Altamura D, Arciniegas MP, Siliqi D, Manna L, Giannini C. X-ray ptychographic mode of self-assembled CdSe/CdS octapod-shaped nanocrystals in thick polymers. J Appl Crystallogr 2020; 53:741-747. [PMID: 32684889 PMCID: PMC7312151 DOI: 10.1107/s160057672000583x] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [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: 01/11/2020] [Accepted: 04/27/2020] [Indexed: 11/10/2022] Open
Abstract
This work describes the application of X-ray ptychography for the inspection of complex assemblies of highly anisotropic nanocrystals embedded in a thick polymer matrix. More specifically, this case deals with CdSe/CdS octapods, with pod length L = 39 ± 2 nm and pod diameter D = 12 ± 2 nm, dispersed in free-standing thick films (24 ± 4 µm) of polymethyl methacrylate and polystyrene, with different molecular weights. Ptychography is the only imaging method available to date that can be used to study architectures made by these types of nanocrystals in thick polymeric films, as any other alternative direct method, such as scanning/transmission electron microscopy, can be definitively ruled out as a result of the large thickness of the free-standing films. The electron density maps of the investigated samples are reconstructed by combining iterative difference map algorithms and a maximum likelihood optimization algorithm. In addition, post image processing techniques are applied to both reduce noise and provide a better visualization of the material morphological details. Through this process, at a final resolution of 27 nm, the reconstructed maps allow us to visualize the intricate network of octapods inside the polymeric matrices.
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Affiliation(s)
- Liberato De Caro
- Istituto di Cristallografia, CNR, via Amendola 122/O, Bari, Italy
| | | | - Davide Altamura
- Istituto di Cristallografia, CNR, via Amendola 122/O, Bari, Italy
| | - Milena P. Arciniegas
- Nanochemistry Department, Istituto Italiano di Tecnologia, via Morego 30, Genova, Italy
| | - Dritan Siliqi
- Istituto di Cristallografia, CNR, via Amendola 122/O, Bari, Italy
| | - Liberato Manna
- Nanochemistry Department, Istituto Italiano di Tecnologia, via Morego 30, Genova, Italy
| | - Cinzia Giannini
- Istituto di Cristallografia, CNR, via Amendola 122/O, Bari, Italy
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18
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Terzi A, Gallo N, Bettini S, Sibillano T, Altamura D, Madaghiele M, De Caro L, Valli L, Salvatore L, Sannino A, Giannini C. Sub‐ and Supramolecular X‐Ray Characterization of Engineered Tissues from Equine Tendon, Bovine Dermis, and Fish Skin Type‐I Collagen. Macromol Biosci 2020; 20:e2000017. [DOI: 10.1002/mabi.202000017] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2020] [Accepted: 01/23/2020] [Indexed: 12/20/2022]
Affiliation(s)
- Alberta Terzi
- Institute of Crystallography (IC)National Research Council Bari 70126 Italy
| | - Nunzia Gallo
- Department of Engineering for InnovationUniversity of Salento Lecce 73100 Italy
| | - Simona Bettini
- Department of Engineering for InnovationUniversity of Salento Lecce 73100 Italy
| | - Teresa Sibillano
- Institute of Crystallography (IC)National Research Council Bari 70126 Italy
| | - Davide Altamura
- Institute of Crystallography (IC)National Research Council Bari 70126 Italy
| | - Marta Madaghiele
- Department of Engineering for InnovationUniversity of Salento Lecce 73100 Italy
| | - Liberato De Caro
- Institute of Crystallography (IC)National Research Council Bari 70126 Italy
| | - Ludovico Valli
- Department of Biological and Environmental Sciences and TechnologiesUniversity of Salento Lecce 73100 Italy
| | - Luca Salvatore
- Department of Engineering for InnovationUniversity of Salento Lecce 73100 Italy
| | - Alessandro Sannino
- Department of Engineering for InnovationUniversity of Salento Lecce 73100 Italy
| | - Cinzia Giannini
- Institute of Crystallography (IC)National Research Council Bari 70126 Italy
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19
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Vanna R, Morasso C, Marcinnò B, Piccotti F, Torti E, Altamura D, Albasini S, Agozzino M, Villani L, Sorrentino L, Bunk O, Leporati F, Giannini C, Corsi F. Raman Spectroscopy Reveals That Biochemical Composition of Breast Microcalcifications Correlates with Histopathologic Features. Cancer Res 2020; 80:1762-1772. [PMID: 32094303 DOI: 10.1158/0008-5472.can-19-3204] [Citation(s) in RCA: 34] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2019] [Revised: 12/28/2019] [Accepted: 02/21/2020] [Indexed: 11/16/2022]
Abstract
Breast microcalcifications are a common mammographic finding. Microcalcifications are considered suspicious signs of breast cancer and a breast biopsy is required, however, cancer is diagnosed in only a few patients. Reducing unnecessary biopsies and rapid characterization of breast microcalcifications are unmet clinical needs. In this study, 473 microcalcifications detected on breast biopsy specimens from 56 patients were characterized entirely by Raman mapping and confirmed by X-ray scattering. Microcalcifications from malignant samples were generally more homogeneous, more crystalline, and characterized by a less substituted crystal lattice compared with benign samples. There were significant differences in Raman features corresponding to the phosphate and carbonate bands between the benign and malignant groups. In addition to the heterogeneous composition, the presence of whitlockite specifically emerged as marker of benignity in benign microcalcifications. The whole Raman signature of each microcalcification was then used to build a classification model that distinguishes microcalcifications according to their overall biochemical composition. After validation, microcalcifications found in benign and malignant samples were correctly recognized with 93.5% sensitivity and 80.6% specificity. Finally, microcalcifications identified in malignant biopsies, but located outside the lesion, reported malignant features in 65% of in situ and 98% of invasive cancer cases, respectively, suggesting that the local microenvironment influences microcalcification features. This study confirms that the composition and structural features of microcalcifications correlate with breast pathology and indicates new diagnostic potentialities based on microcalcifications assessment. SIGNIFICANCE: Raman spectroscopy could be a quick and accurate diagnostic tool to precisely characterize and distinguish benign from malignant breast microcalcifications detected on mammography.
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Affiliation(s)
- Renzo Vanna
- Nanomedicine and Molecular Imaging Lab, Istituti Clinici Scientifici Maugeri IRCCS, Pavia, Italy
| | - Carlo Morasso
- Nanomedicine and Molecular Imaging Lab, Istituti Clinici Scientifici Maugeri IRCCS, Pavia, Italy
| | - Beatrice Marcinnò
- Custom Computing and Processing Systems Laboratory, Department of Electrical, Computer and Biomedical Engineering, University of Pavia, Pavia, Italy
| | - Francesca Piccotti
- Nanomedicine and Molecular Imaging Lab, Istituti Clinici Scientifici Maugeri IRCCS, Pavia, Italy
| | - Emanuele Torti
- Custom Computing and Processing Systems Laboratory, Department of Electrical, Computer and Biomedical Engineering, University of Pavia, Pavia, Italy
| | - Davide Altamura
- Institute of Crystallography, National Research Council, Bari, Italy
| | - Sara Albasini
- Nanomedicine and Molecular Imaging Lab, Istituti Clinici Scientifici Maugeri IRCCS, Pavia, Italy
| | - Manuela Agozzino
- Pathology Unit, Istituti Clinici Scientifici Maugeri IRCCS, Pavia, Italy
| | - Laura Villani
- Pathology Unit, Istituti Clinici Scientifici Maugeri IRCCS, Pavia, Italy
| | - Luca Sorrentino
- Department of Biomedical and Clinical Sciences "Luigi Sacco", University of Milan, Milan, Italy
| | - Oliver Bunk
- Paul Scherrer Institut, Villigen, Switzerland
| | - Francesco Leporati
- Custom Computing and Processing Systems Laboratory, Department of Electrical, Computer and Biomedical Engineering, University of Pavia, Pavia, Italy
| | - Cinzia Giannini
- Institute of Crystallography, National Research Council, Bari, Italy
| | - Fabio Corsi
- Department of Biomedical and Clinical Sciences "Luigi Sacco", University of Milan, Milan, Italy. .,Breast Unit, Department of Surgery, Istituti Clinici Scientifici Maugeri IRCCS, Pavia, Italy
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20
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Grisorio R, Fanizza E, Allegretta I, Altamura D, Striccoli M, Terzano R, Giannini C, Vergaro V, Ciccarella G, Margiotta N, Suranna GP. Insights into the role of the lead/surfactant ratio in the formation and passivation of cesium lead bromide perovskite nanocrystals. Nanoscale 2020; 12:623-637. [PMID: 31829364 DOI: 10.1039/c9nr08079a] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
Abstract
This study aims at rationalizing the effects of the lead/surfactant ratio on the structural evolution of cesium lead-bromide perovskite nanocrystals (NCs), ascertaining how their shape and surface composition can be modulated by suitably adjusting the ligand amount (an equivolumetric mixture of oleic acid and oleyl amine) relatively to lead bromide. The tailoring of the reaction conditions allows the obtainment of blue-emitting CsPbBr3 nanoplatelets in the presence of ligand excess, while green-emitting nanocubes are achieved under low-surfactant conditions. An insight into the NC's shape evolution dictated by the different reaction conditions suggests that the generation of CsPbBr3 nanoplatelets is controlled by the dimensions of [(RNH3)2(PbBr4)]n layers formed before the injection of cesium oleate. The growth step promoted by preformed layers is concomitant to (but independent from) the nucleation process of lead-based species, leading to centrosymmetric nanocubes (prevalent in low-surfactant regimes) or Cs4PbBr6 NCs (prevalent in high-surfactant regimes). The proposed NC growth is supported by the analysis of the optical properties of non-purified samples, which reveal the selective presence of structures endowed with four cell unit average thickness accompanying larger emissive nanocubes. By combining nuclear magnetic resonance (NMR) and UV-Vis spectroscopy techniques, it is ascertained that the lead/surfactant ratio also controls the relative proportion between lead-based species (PBr2, PbBr3-, PbBr42- and plausibly PbBr53- or PbBr64-) formed before cesium injection, which regulate the size of [(RNH3)2(PbBr4)]n layers as well as the formation of Cs4PbBr6 NCs during the nucleation stage. The surface chemistry of the differently structured perovskite NCs is investigated by correlating the elemental composition of the nanoparticles with specific NMR signals ascribable to the surface ligands. This level of investigation also sheds light on the stability of the time-dependent fluorescence exhibited by differently composed perovskite NCs before the loss of their colloidal integrity. Our findings can bring about a fine tuning of the synthetic methods currently employed for controlling the shape and surface chemistry of perovskite NCs.
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Affiliation(s)
- Roberto Grisorio
- Dipartimento di Ingegneria Civile, Ambientale, del Territorio, Edile e di Chimica (DICATECh), Politecnico di Bari, Via Orabona 4, 70125 Bari, Italy.
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21
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Avitabile C, Diaferia C, Roviello V, Altamura D, Giannini C, Vitagliano L, Accardo A, Romanelli A. Fluorescence and Morphology of Self-Assembled Nucleobases and Their Diphenylalanine Hybrid Aggregates. Chemistry 2019; 25:14850-14857. [PMID: 31566814 DOI: 10.1002/chem.201902709] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2019] [Revised: 09/18/2019] [Indexed: 12/12/2022]
Abstract
Studies carried out in recent decades have revealed that the ability to self-assemble is a widespread property among biomolecules. Small nucleic acid moieties or very short peptides are able to generate intricate assemblies endowed with remarkable structural and spectroscopic properties. Herein, the structural/spectroscopic characterization of aggregates formed by nucleobases and peptide nucleic acid (PNA)-peptide conjugates are reported. At high concentration, all studied nucleobases form aggregates characterized by previously unreported fluorescence properties. The conjugation of these bases, as PNA derivatives, to the dipeptide Phe-Phe leads to the formation of novel hybrid assemblies, which are characterized by an amyloid-like association of the monomers. Although these compounds share the same basic cross-β motif, the nature and number of PNA units have an important impact on both the level of structural order and the intrinsic fluorescence of the self-assembled nanostructure.
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Affiliation(s)
- Concetta Avitabile
- Institute of Biostructures and Bioimaging (CNR), via Mezzocannone 16, 80134, Naples, Italy
| | - Carlo Diaferia
- Department of Pharmacy, Research Centre on Bioactive Peptides (CIRPeB), University of Naples "Federico II", Via Mezzocannone 16, 80134, Naples, Italy
| | - Valentina Roviello
- Advanced Metrologic Service Center (CeSMA), University of Naples "Federico II", Corso N. Protopisani, 80146, Naples, Italy
| | - Davide Altamura
- Institute of Crystallography (CNR), via Amendola 122, 70126, Bari, Italy
| | - Cinzia Giannini
- Institute of Crystallography (CNR), via Amendola 122, 70126, Bari, Italy
| | - Luigi Vitagliano
- Institute of Biostructures and Bioimaging (CNR), via Mezzocannone 16, 80134, Naples, Italy
| | - Antonella Accardo
- Department of Pharmacy, Research Centre on Bioactive Peptides (CIRPeB), University of Naples "Federico II", Via Mezzocannone 16, 80134, Naples, Italy
| | - Alessandra Romanelli
- Department of Pharmaceutical Sciences, University of Milan, via Venezian 21, 20133, Milan, Italy
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22
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Procopio A, Malucelli E, Pacureanu A, Cappadone C, Farruggia G, Sargenti A, Castiglioni S, Altamura D, Sorrentino A, Giannini C, Pereiro E, Cloetens P, Maier JAM, Iotti S. Correction to Chemical Fingerprint of Zn-Hydroxyapatite in the Early Stages of Osteogenic Differentiation. ACS Cent Sci 2019; 5:1731. [PMID: 31660441 PMCID: PMC6813552 DOI: 10.1021/acscentsci.9b00918] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/11/2019] [Indexed: 06/10/2023]
Abstract
[This corrects the article DOI: 10.1021/acscentsci.9b00509.].
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23
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Suárez-Forero DG, Giuri A, De Giorgi M, Polimeno L, De Marco L, Todisco F, Gigli G, Dominici L, Ballarini D, Ardizzone V, Belviso BD, Altamura D, Giannini C, Brescia R, Colella S, Listorti A, Esposito Corcione C, Rizzo A, Sanvitto D. Quantum Nature of Light in Nonstoichiometric Bulk Perovskites. ACS Nano 2019; 13:10711-10716. [PMID: 31469265 DOI: 10.1021/acsnano.9b05361] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Sources of single photons are a fundamental brick in the development of quantum information technologies. Great efforts have been made so far in the realization of reliable, highly efficient, and on demand quantum sources that could show an easy integration with quantum devices. This has recently culminated in the use of solid state quantum dots as promising candidates for future sources of quantum technologies. However, some challenges, like their complex fabrication, random distribution, and difficult integrability with silicon technology, could hinder their broad application, making necessary the study of alternative systems. In this work, we clearly demonstrate single photon emission from quantum dots formed in nonstoichiometric bulk perovskites. Their simple growing procedures, exceptional stability under constant illumination, easy control of their optical properties, as well as ease of integrability make these materials very interesting candidates for the development of quantum light sources in the near-infrared.
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Affiliation(s)
- Daniel G Suárez-Forero
- CNR NANOTEC , Institute of Nanotechnology , Via Monteroni , 73100 Lecce , Italy
- Dipartimento di Ingegneria dell'Innovazione , Università del Salento , via per Monteroni, km 1 , 73100 Lecce , Italy
| | - Antonella Giuri
- CNR NANOTEC , Institute of Nanotechnology , Via Monteroni , 73100 Lecce , Italy
- Dipartimento di Ingegneria dell'Innovazione , Università del Salento , via per Monteroni, km 1 , 73100 Lecce , Italy
| | - Milena De Giorgi
- CNR NANOTEC , Institute of Nanotechnology , Via Monteroni , 73100 Lecce , Italy
| | - Laura Polimeno
- CNR NANOTEC , Institute of Nanotechnology , Via Monteroni , 73100 Lecce , Italy
- Dipartimento di Fisica , Universitá del Salento , Strada Provinciale Lecce-Monteroni, Campus Ecotekne, Lecce 73100 , Italy
| | - Luisa De Marco
- CNR NANOTEC , Institute of Nanotechnology , Via Monteroni , 73100 Lecce , Italy
| | - Francesco Todisco
- CNR NANOTEC , Institute of Nanotechnology , Via Monteroni , 73100 Lecce , Italy
| | - Giuseppe Gigli
- CNR NANOTEC , Institute of Nanotechnology , Via Monteroni , 73100 Lecce , Italy
- Dipartimento di Fisica , Universitá del Salento , Strada Provinciale Lecce-Monteroni, Campus Ecotekne, Lecce 73100 , Italy
| | - Lorenzo Dominici
- CNR NANOTEC , Institute of Nanotechnology , Via Monteroni , 73100 Lecce , Italy
| | - Dario Ballarini
- CNR NANOTEC , Institute of Nanotechnology , Via Monteroni , 73100 Lecce , Italy
| | - Vincenzo Ardizzone
- CNR NANOTEC , Institute of Nanotechnology , Via Monteroni , 73100 Lecce , Italy
- Dipartimento di Fisica , Universitá del Salento , Strada Provinciale Lecce-Monteroni, Campus Ecotekne, Lecce 73100 , Italy
| | - Benny D Belviso
- Istituto di Cristallografia, CNR-IC , Via Amendola 122/O , 70126 Bari , Italy
| | - Davide Altamura
- Istituto di Cristallografia, CNR-IC , Via Amendola 122/O , 70126 Bari , Italy
| | - Cinzia Giannini
- Istituto di Cristallografia, CNR-IC , Via Amendola 122/O , 70126 Bari , Italy
| | - Rosaria Brescia
- Electron Microscopy Facility , Istituto Italiano di Tecnologia , via Morego 30 , Genova 16163 , Italy
| | - Silvia Colella
- CNR NANOTEC , Institute of Nanotechnology , Via Monteroni , 73100 Lecce , Italy
- Dipartimento di Fisica , Universitá del Salento , Strada Provinciale Lecce-Monteroni, Campus Ecotekne, Lecce 73100 , Italy
| | - Andrea Listorti
- CNR NANOTEC , Institute of Nanotechnology , Via Monteroni , 73100 Lecce , Italy
- Dipartimento di Fisica , Universitá del Salento , Strada Provinciale Lecce-Monteroni, Campus Ecotekne, Lecce 73100 , Italy
| | - Carola Esposito Corcione
- CNR NANOTEC , Institute of Nanotechnology , Via Monteroni , 73100 Lecce , Italy
- Dipartimento di Ingegneria dell'Innovazione , Università del Salento , via per Monteroni, km 1 , 73100 Lecce , Italy
| | - Aurora Rizzo
- CNR NANOTEC , Institute of Nanotechnology , Via Monteroni , 73100 Lecce , Italy
- Dipartimento di Fisica , Universitá del Salento , Strada Provinciale Lecce-Monteroni, Campus Ecotekne, Lecce 73100 , Italy
| | - Daniele Sanvitto
- CNR NANOTEC , Institute of Nanotechnology , Via Monteroni , 73100 Lecce , Italy
- INFN Sezione di Lecce , 73100 Lecce , Italy
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24
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Caliandro R, Altamura D, Belviso BD, Rizzo A, Masi S, Giannini C. Investigating temperature-induced structural changes of lead halide perovskites by in situ X-ray powder diffraction. J Appl Crystallogr 2019. [DOI: 10.1107/s160057671901166x] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022] Open
Abstract
In situ X-ray diffraction experiments offer a unique opportunity to investigate structural dynamics at atomic resolution, by collecting several patterns in an appropriate time sequence (data matrix) while varying the applied stimulus (e.g. temperature changes). Individual measurements can be processed independently by refinement procedures that are based on prior knowledge of the average structure of each crystal phase present in the sample. If the refinement converges, parameters of the average structural model can be assessed and studied as a function of the stimulus variations. An alternative approach consists in applying a multivariate analysis to the data matrix as a whole. Methods such as principal component analysis (PCA) and phase-sensitive detection perform fast, blind and model-independent calculations that can be used for on-site analysis to identify trends in data actually related to the applied stimulus. Both classical and multivariate approaches are here applied to the in situ X-ray diffraction pair distribution function (PDF) setup on two samples of the hybrid perovskite methylammonium (MA) lead iodide obtained by different synthetic routes, subjected to temperature variations. The PDF refinement allows assessing the occurrence of temperature-induced rotations of the PbI6 octahedra and variations in the relative amount of MAPbI3 and intermediate PbI2–MAI–DMSO (dimethyl sulfoxide) crystal phases. A change in the orientation of the methylammonium molecule with temperature is also characterized. Results of the multivariate analysis tools, which include a newly introduced space-dependent variant of PCA, are described, interpreted and validated against simulated data, and their specificity and relation to refinement results are highlighted. The interaction between nearby octahedra is identified as the driving force for the tetragonal-to-cubic phase transition, and three fundamental trends in data having different temperature behaviours are unveiled: (i) irreversible weight-fraction variations of the MAPbI3 and PbI2–MAI–DMSO phases; (ii) reversible structural changes related to the MAPbI3 crystalline phase and its lattice distortion in the ab plane, having the same frequency as the temperature variations; (iii) reversible lattice distortion along the c axis, occurring at twice the frequency of the temperature changes.
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25
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Procopio A, Malucelli E, Pacureanu A, Cappadone C, Farruggia G, Sargenti A, Castiglioni S, Altamura D, Sorrentino A, Giannini C, Pereiro E, Cloetens P, Maier JAM, Iotti S. Chemical Fingerprint of Zn-Hydroxyapatite in the Early Stages of Osteogenic Differentiation. ACS Cent Sci 2019; 5:1449-1460. [PMID: 31482128 PMCID: PMC6716342 DOI: 10.1021/acscentsci.9b00509] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/24/2019] [Indexed: 06/01/2023]
Abstract
The core knowledge about biomineralization is provided by studies on the advanced phases of the process mainly occurring in the extracellular matrix. Here, we investigate the early stages of biomineralization by evaluating the chemical fingerprint of the initial mineral nuclei deposition in the intracellular milieu and their evolution toward hexagonal hydroxyapatite. The study is conducted on human bone mesenchymal stem cells exposed to an osteogenic cocktail for 4 and 10 days, exploiting laboratory X-ray diffraction techniques and cutting-edge developments of synchrotron-based 2D and 3D cryo-X-ray microscopy. We demonstrate that biomineralization starts with Zn-hydroxyapatite nucleation within the cell, rapidly evolving toward hexagonal hydroxyapatite crystals, very similar in composition and structure to the one present in human bone. These results provide experimental evidence of the germinal role of Zn in hydroxyapatite nucleation and foster further studies on the intracellular molecular mechanisms governing the initial phases of bone tissue formation.
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Affiliation(s)
- Alessandra Procopio
- Department of Pharmacy and Biotechnology, University of Bologna, Bologna 40127, Italy
| | - Emil Malucelli
- Department of Pharmacy and Biotechnology, University of Bologna, Bologna 40127, Italy
| | | | - Concettina Cappadone
- Department of Pharmacy and Biotechnology, University of Bologna, Bologna 40127, Italy
| | - Giovanna Farruggia
- Department of Pharmacy and Biotechnology, University of Bologna, Bologna 40127, Italy
- National Institute of Biostructures and Biosystems, Rome 00136, Italy
| | - Azzurra Sargenti
- Department of Pharmacy and Biotechnology, University of Bologna, Bologna 40127, Italy
| | - Sara Castiglioni
- Department of Biomedical and Clinical Sciences L. Sacco, University of Milan, Milan 20122, Italy
| | - Davide Altamura
- Institute of Crystallography, National Research Council, Bari 70126, Italy
| | - Andrea Sorrentino
- ALBA Synchrotron Light Source, Cerdanyola del Vallès, Barcelona 08290, Spain
| | - Cinzia Giannini
- Institute of Crystallography, National Research Council, Bari 70126, Italy
| | - Eva Pereiro
- ALBA Synchrotron Light Source, Cerdanyola del Vallès, Barcelona 08290, Spain
| | - Peter Cloetens
- ID16A Beamline, ESRF, the European Synchrotron, Grenoble 38043, France
| | - Jeanette A M Maier
- Department of Biomedical and Clinical Sciences L. Sacco, University of Milan, Milan 20122, Italy
| | - Stefano Iotti
- Department of Pharmacy and Biotechnology, University of Bologna, Bologna 40127, Italy
- National Institute of Biostructures and Biosystems, Rome 00136, Italy
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26
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Terzi A, Gallo N, Bettini S, Sibillano T, Altamura D, Campa L, Natali ML, Salvatore L, Madaghiele M, De Caro L, Valli L, Sannino A, Giannini C. Investigations of Processing-Induced Structural Changes in Horse Type-I Collagen at Sub and Supramolecular Levels. Front Bioeng Biotechnol 2019; 7:203. [PMID: 31552231 PMCID: PMC6736615 DOI: 10.3389/fbioe.2019.00203] [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] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2019] [Accepted: 08/06/2019] [Indexed: 11/19/2022] Open
Abstract
The aim of this work is to evaluate the effects of different extraction and material processing protocols on the collagen structure and hierarchical organization of equine tendons. Wide and Small Angle X-ray Scattering investigations on raw powders and thin films revealed that not only the extraction and purification treatments, but also the processing conditions may affect the extent of the protein crystalline domain and induce a nanoscale “shield effect.” This is due to the supramolecular fiber organization, which protects the atomic scale structure from the modifications that occur during fabrication protocols. Moreover, X-ray analyses and Fourier Transform Infrared spectroscopy performed on the biomaterial sheds light on the relationship between processing conditions, triple helical content and the organization in atomic and nanoscale domains. It was found that the mechanical homogenization of the slurry in acidic solution is a treatment that ensures a high content of super-organization of collagen into triple helices and a lower crystalline domain in the material. Finally, mechanical tensile tests were carried out, proving that the acidic solution is the condition which most enhances both mechanical stiffness and supramolecular fiber organization of the films.
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Affiliation(s)
- Alberta Terzi
- Institute of Crystallography (IC), National Research Council, Bari, Italy
| | - Nunzia Gallo
- Department of Engineering for Innovation, University of Salento, Lecce, Italy
| | - Simona Bettini
- Department of Engineering for Innovation, University of Salento, Lecce, Italy
| | - Teresa Sibillano
- Institute of Crystallography (IC), National Research Council, Bari, Italy
| | - Davide Altamura
- Institute of Crystallography (IC), National Research Council, Bari, Italy
| | | | | | - Luca Salvatore
- Department of Engineering for Innovation, University of Salento, Lecce, Italy
| | - Marta Madaghiele
- Department of Engineering for Innovation, University of Salento, Lecce, Italy
| | - Liberato De Caro
- Institute of Crystallography (IC), National Research Council, Bari, Italy
| | - Ludovico Valli
- Department of Biological and Environmental Sciences and Technologies, University of Salento, Lecce, Italy
| | - Alessandro Sannino
- Department of Engineering for Innovation, University of Salento, Lecce, Italy
| | - Cinzia Giannini
- Institute of Crystallography (IC), National Research Council, Bari, Italy
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27
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Scarfiello R, Cesari A, Altamura D, Masi S, Nobile C, Balzano F, Giannini C, Grillo V, Tavabi AH, Dunin-Borkowski RE, Uccello-Barretta G, Cozzoli PD, Rizzo A. Mechanistic insight into the formation of colloidal WS 2 nanoflakes in hot alkylamine media. Nanoscale Adv 2019; 1:2772-2782. [PMID: 36132722 PMCID: PMC9418938 DOI: 10.1039/c9na00279k] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 05/03/2019] [Accepted: 05/23/2019] [Indexed: 06/16/2023]
Abstract
Developing convenient and reliable synthetic methodologies for solution processable 2D layered ultrathin nanostructures with lateral size control is one of the major challenges for practical applications. In this study, a rational understanding a long-chain amphiphilic surfactant assisted non-hydrolytic synthesis that is able to generate dimension-controllable 2D-WS2 nanocrystal flakes in a single-step protocol is proposed. The evolution of the starting soft organic-inorganic lamellar template into ultrathin few-layer 2D-WS2 nanostructures with lateral size modulation over a range between 3 and 30 nm is monitored. The initial formation of WS2 nanoseeds occurs in a self-assembled sacrificial precursor source, acting as a template, where larger two-dimensional nanostructures can grow without undergoing significant thickness variation. Overall, the chemical nature and steric hindrance of the alkylamines are essential to modulate the reactivity of such WS2 nanoclusters, which correlate with the lateral size of the resulting nanoflakes.
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Affiliation(s)
- Riccardo Scarfiello
- CNR NANOTEC, Institute of Nanotechnology c/o Campus Ecotecne, via Monteroni 73100 Lecce Italy
| | - Andrea Cesari
- Department of Chemistry and Industrial Chemistry, University of Pisa via Moruzzi 13 56124 Pisa Italy
| | - Davide Altamura
- IC CNR, Institute of Crystallography via Amendola 122/O I-70126 Bari Italy
| | - Sofia Masi
- CNR NANOTEC, Institute of Nanotechnology c/o Campus Ecotecne, via Monteroni 73100 Lecce Italy
| | - Concetta Nobile
- CNR NANOTEC, Institute of Nanotechnology c/o Campus Ecotecne, via Monteroni 73100 Lecce Italy
| | - Federica Balzano
- Department of Chemistry and Industrial Chemistry, University of Pisa via Moruzzi 13 56124 Pisa Italy
| | - Cinzia Giannini
- IC CNR, Institute of Crystallography via Amendola 122/O I-70126 Bari Italy
| | - Vincenzo Grillo
- Centro S3, CNR Istituto Nanoscienze via Campi 213/A 41125 Modena Italy
| | - Amir H Tavabi
- Ernst Ruska-Centre for Microscopy and Spectroscopy with Electrons, Forschungszentrum Jülich 52425 Julich Germany
| | - Rafal E Dunin-Borkowski
- Ernst Ruska-Centre for Microscopy and Spectroscopy with Electrons, Forschungszentrum Jülich 52425 Julich Germany
| | - Gloria Uccello-Barretta
- Department of Chemistry and Industrial Chemistry, University of Pisa via Moruzzi 13 56124 Pisa Italy
| | - P Davide Cozzoli
- CNR NANOTEC, Institute of Nanotechnology c/o Campus Ecotecne, via Monteroni 73100 Lecce Italy
- Department of Mathematics and Physics E. De Giorgi, University of Salento via per Arnesano Lecce 73100 Italy
- UdR INSTM di Lecce, Università del Salento c/o, Campus Ecotekne, via Arnesano 73100 Lecce Italy
| | - Aurora Rizzo
- CNR NANOTEC, Institute of Nanotechnology c/o Campus Ecotecne, via Monteroni 73100 Lecce Italy
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28
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Migliaccio L, Manini P, Altamura D, Giannini C, Tassini P, Maglione MG, Minarini C, Pezzella A. Evidence of Unprecedented High Electronic Conductivity in Mammalian Pigment Based Eumelanin Thin Films After Thermal Annealing in Vacuum. Front Chem 2019; 7:162. [PMID: 30972328 PMCID: PMC6443883 DOI: 10.3389/fchem.2019.00162] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2019] [Accepted: 03/04/2019] [Indexed: 11/16/2022] Open
Abstract
Melanin denotes a variety of mammalian pigments, including the dark electrically conductive eumelanin and the reddish, sulfur-containing, pheomelanin. Organic (bio)electronics is showing increasing interests in eumelanin exploitation, e.g., for bio-interfaces, but the low conductivity of the material is limiting the development of eumelanin-based devices. Here, for the first time, we report an abrupt increase of the eumelanin electrical conductivity, revealing the highest value presented to date of 318 S/cm. This result, obtained via simple thermal annealing in vacuum of the material, designed on the base of the knowledge of the eumelanin chemical properties, also discloses the actual electronic nature of this material's conduction.
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Affiliation(s)
- Ludovico Migliaccio
- Department of Chemical Sciences, University of Naples “Federico II”, Naples, Italy
| | - Paola Manini
- Department of Chemical Sciences, University of Naples “Federico II”, Naples, Italy
| | | | | | - Paolo Tassini
- Laboratory for Nanomaterials and Devices (SSPT-PROMAS-NANO), ENEA C. R. Portici, Piazzale Enrico Fermi 1, Località Granatello, Portici, Italy
| | - Maria Grazia Maglione
- Laboratory for Nanomaterials and Devices (SSPT-PROMAS-NANO), ENEA C. R. Portici, Piazzale Enrico Fermi 1, Località Granatello, Portici, Italy
| | - Carla Minarini
- Laboratory for Nanomaterials and Devices (SSPT-PROMAS-NANO), ENEA C. R. Portici, Piazzale Enrico Fermi 1, Località Granatello, Portici, Italy
| | - Alessandro Pezzella
- Institute for Polymers, Composites and Biomaterials (IPCB), CNR, Pozzuoli, Italy
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29
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Camposeo A, Granger DB, Parkin SR, Altamura D, Giannini C, Anthony JE, Pisignano D. Directed Functionalization Tailors the Polarized Emission and Waveguiding Properties of Anthracene-Based Molecular Crystals. Chem Mater 2019; 31:1775-1783. [PMID: 30918420 PMCID: PMC6429991 DOI: 10.1021/acs.chemmater.8b05361] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/31/2018] [Revised: 02/03/2019] [Indexed: 06/09/2023]
Abstract
Organic semiconducting crystals are characterized by anisotropic optical and electronic properties, which can be tailored by controlling the packing of the constituent molecules in the crystal unit cell. Here, the synthesis, structural characterization, and emission of anthracene derivatives are focused to correlate directed functionalization and optical properties. These compounds are easily and scalably prepared by standard synthesis techniques, and alterations in functional groups yield materials with either exclusive edge-to-face or face-to-face solid-state interactions. The resulting crystals feature either platelet or needle shapes, and the emission exhibits polarization ratios up to 5 at room temperature. In needle-shaped crystals, self-waveguiding of the emission is also observed with propagation loss coefficients as low as 1.3 dB mm-1. Moreover, optical coupling between crossing crystalline microwires is found and characterized. The combination of optical anisotropy and emission self-waveguiding opens interesting routes for the exploitation of these active materials in photonic applications, including optical integrated circuits and microscale light sources.
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Affiliation(s)
- Andrea Camposeo
- NEST,
Istituto Nanoscienze-CNR, Piazza San Silvestro 12, I-56127 Pisa, Italy
| | - Devin B. Granger
- Center
for Applied Energy Research, University
of Kentucky, 2582 Research Park Drive, Lexington, Kentucky 40506, United States
| | - Sean R. Parkin
- Center
for Applied Energy Research, University
of Kentucky, 2582 Research Park Drive, Lexington, Kentucky 40506, United States
| | - Davide Altamura
- Istituto
di Cristallografia (IC-CNR), via Amendola 122/O, I-70126 Bari, Italy
| | - Cinzia Giannini
- Istituto
di Cristallografia (IC-CNR), via Amendola 122/O, I-70126 Bari, Italy
| | - John E. Anthony
- Center
for Applied Energy Research, University
of Kentucky, 2582 Research Park Drive, Lexington, Kentucky 40506, United States
| | - Dario Pisignano
- NEST,
Istituto Nanoscienze-CNR, Piazza San Silvestro 12, I-56127 Pisa, Italy
- Dipartimento
di Fisica, Università di Pisa, Largo B. Pontecorvo 3, I-56127 Pisa, Italy
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30
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Giannini C, Ladisa M, Lutz-Bueno V, Terzi A, Ramella M, Fusaro L, Altamura D, Siliqi D, Sibillano T, Diaz A, Boccafoschi F, Bunk O. X-ray scanning microscopies of microcalcifications in abdominal aortic and popliteal artery aneurysms. IUCrJ 2019; 6:267-276. [PMID: 30867924 PMCID: PMC6400185 DOI: 10.1107/s2052252519001544] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/05/2018] [Accepted: 01/28/2019] [Indexed: 05/27/2023]
Abstract
Abdominal aortic and popliteal artery aneurysms are vascular diseases which show massive degeneration, weakening of the vascular wall and loss of the vascular tissue functionality. They are driven by inflammatory, hemodynamical factors and biological alterations that may lead, in the case of an abdominal aortic aneurysm, to sudden and dangerous ruptures of the arteries. Here, human aortic and popliteal aneurysm tissues were obtained during surgical repair, and studied by synchrotron radiation X-ray scanning microdiffraction and small-angle scattering, to investigate the microcalcifications present in the tissues. Data collected during the experiments were transformed into quantitative microscopy images through the combination of statistical approaches and crystallographic methods. As a result of this multi-step analysis, microcalcifications, which are markers of the pathology, were classified in terms of chemical and structural content. This analysis helped to identify the presence of nanocrystalline hy-droxy-apatite and microcrystalline cholesterol, embedded in myofilament, and elastin-containing tissue with low collagen content in predominantly nanocrystalline areas. The generality of the approach allows it to be transferred to other types of tissue and other pathologies affected by microcalcifications, such as thyroid carcinoma, breast cancer, testicular microli-thia-sis or glioblastoma.
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Affiliation(s)
- C. Giannini
- Institute of Crystallography, National Research Council, via Amendola 122/O, Bari, Bari 70125, Italy
| | - M. Ladisa
- Institute of Crystallography, National Research Council, via Amendola 122/O, Bari, Bari 70125, Italy
| | - V. Lutz-Bueno
- Paul Scherrer Institut, Forschungsstrasse 111, Villigen PSI, 5232, Switzerland
| | - A. Terzi
- Institute of Crystallography, National Research Council, via Amendola 122/O, Bari, Bari 70125, Italy
| | - M. Ramella
- Department of Health Sciences, University of Piemonte Orientale, Via Solaroli 17, Novara, 28100, Italy
| | - L. Fusaro
- Department of Health Sciences, University of Piemonte Orientale, Via Solaroli 17, Novara, 28100, Italy
| | - D. Altamura
- Institute of Crystallography, National Research Council, via Amendola 122/O, Bari, Bari 70125, Italy
| | - D. Siliqi
- Institute of Crystallography, National Research Council, via Amendola 122/O, Bari, Bari 70125, Italy
| | - T. Sibillano
- Institute of Crystallography, National Research Council, via Amendola 122/O, Bari, Bari 70125, Italy
| | - A. Diaz
- Paul Scherrer Institut, Forschungsstrasse 111, Villigen PSI, 5232, Switzerland
| | - F. Boccafoschi
- Institute of Crystallography, National Research Council, via Amendola 122/O, Bari, Bari 70125, Italy
- Department of Health Sciences, University of Piemonte Orientale, Via Solaroli 17, Novara, 28100, Italy
| | - O. Bunk
- Paul Scherrer Institut, Forschungsstrasse 111, Villigen PSI, 5232, Switzerland
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31
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Grisorio R, Di Clemente ME, Fanizza E, Allegretta I, Altamura D, Striccoli M, Terzano R, Giannini C, Irimia-Vladu M, Suranna GP. Exploring the surface chemistry of cesium lead halide perovskite nanocrystals. Nanoscale 2019; 11:986-999. [PMID: 30569929 DOI: 10.1039/c8nr08011a] [Citation(s) in RCA: 54] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/19/2023]
Abstract
Colloidal nanocrystals (NCs) of cesium lead halide perovskites (CsPbX3, X = Cl, Br or I) are emerging as an exciting class of optoelectronic materials, but the retention of their colloidal and structural integrity during isolation, purification and handling still represents a critical issue. The impelling questions concerning their intrinsic chemical instability are connected to the dynamic nature of the bonding between the inorganic surface and the long-chain capping ligands. However, the key aspects of CsPbX3's surface chemistry that directly impact their stability remain elusive. In this contribution, we provide an in-depth investigation of the surface properties of differently composed CsPbX3 NCs, prepared by traditional hot-injection methods. The study, mainly relying on solution NMR spectroscopy, is backed up by elemental analysis as well as morphological, structural and optical investigations. We ascertained that the nature of the ligand adsorption/desorption processes at the NC surface is dependent on its elemental composition, thus explaining the origin of the instability afflicting CsPbI3 NCs. We also evaluated the effect of NC purification as well as of the degradation pathways involving the organic shell on the surface chemistry of CsPbX3 NCs. This study paves the way for new post-functionalization strategies for this promising class of nanomaterials.
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Affiliation(s)
- Roberto Grisorio
- Dipartimento di Ingegneria Civile, Ambientale, del Territorio, Edile e di Chimica (DICATECh), Politecnico di Bari, Via Orabona 4, 70125 Bari, Italy.
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32
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Castelli A, Biffi G, Ceseracciu L, Spirito D, Prato M, Altamura D, Giannini C, Artyukhin S, Krahne R, Manna L, Arciniegas MP. Revealing Photoluminescence Modulation from Layered Halide Perovskite Microcrystals upon Cyclic Compression. Adv Mater 2019; 31:e1805608. [PMID: 30393907 DOI: 10.1002/adma.201805608] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/28/2018] [Revised: 09/26/2018] [Indexed: 05/24/2023]
Abstract
Halide perovskites show promise for high-efficiency solar energy conversion and light-emitting diode devices owing to their bandgap, which falls within the visible optical range. However, due to their rigidity, GPa pressures are necessary to control the complex interplay between their electronic and crystallographic structure. Layered perovskites are likely to be controlled using much lower pressures by exploiting the optical anisotropy of the embedded organic molecules in the structure. This work introduces layered perovskite microplatelets and demonstrates the extreme sensitivity of their emission to cyclic mechanical loading in the range of tens of MPa. A drastic change in their emission is observed in situ, from near-white to an enhanced blue color. This process is reversible, as is evident from a hysteresis loop in the photoluminescence (PL) intensity of the microplatelets. A combination of experimental analysis and computational modelling shows that such behavior cannot be attributed to changes in the crystallographic structure of the flakes. Instead, it suggests that, thanks to their structural anisotropy, microplate alignment and reorientation are responsible for the observed PL modulation. The possibility to tune the optical emission of layered perovskite crystals via low pressures makes them highly interesting as active materials in applications where stress sensing or light modulation is desired.
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Affiliation(s)
- Andrea Castelli
- Istituto Italiano di Tecnologia, Via Morego 30, 16163, Genova, Italy
| | - Giulia Biffi
- Istituto Italiano di Tecnologia, Via Morego 30, 16163, Genova, Italy
- Dipartimento di Chimica e Chimica Industriale, Università degli Studi di Genova, Via Dodecaneso, 31, 16146, Genova, Italy
| | - Luca Ceseracciu
- Istituto Italiano di Tecnologia, Via Morego 30, 16163, Genova, Italy
| | - Davide Spirito
- Istituto Italiano di Tecnologia, Via Morego 30, 16163, Genova, Italy
| | - Mirko Prato
- Istituto Italiano di Tecnologia, Via Morego 30, 16163, Genova, Italy
| | - Davide Altamura
- Istituto di Cristallografia, Consiglio Nazionale delle Ricerche, via Amendola 122/O, 70126, Bari, Italy
| | - Cinzia Giannini
- Istituto di Cristallografia, Consiglio Nazionale delle Ricerche, via Amendola 122/O, 70126, Bari, Italy
| | - Sergey Artyukhin
- Istituto Italiano di Tecnologia, Via Morego 30, 16163, Genova, Italy
| | - Roman Krahne
- Istituto Italiano di Tecnologia, Via Morego 30, 16163, Genova, Italy
| | - Liberato Manna
- Istituto Italiano di Tecnologia, Via Morego 30, 16163, Genova, Italy
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33
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Gijsbers A, Montagut DC, Méndez-Godoy A, Altamura D, Saviano M, Siliqi D, Sánchez-Puig N. Interaction of the GTPase Elongation Factor Like-1 with the Shwachman-Diamond Syndrome Protein and Its Missense Mutations. Int J Mol Sci 2018; 19:E4012. [PMID: 30545121 PMCID: PMC6321010 DOI: 10.3390/ijms19124012] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2018] [Revised: 12/06/2018] [Accepted: 12/08/2018] [Indexed: 12/14/2022] Open
Abstract
The Shwachman-Diamond Syndrome (SDS) is a disorder arising from mutations in the genes encoding for the Shwachman-Bodian-Diamond Syndrome (SBDS) protein and the GTPase known as Elongation Factor Like-1 (EFL1). Together, these proteins remove the anti-association factor eIF6 from the surface of the pre-60S ribosomal subunit to promote the formation of mature ribosomes. SBDS missense mutations can either destabilize the protein fold or affect surface epitopes. The molecular alterations resulting from the latter remain largely unknown, although some evidence suggest that binding to EFL1 may be affected. We further explored the effect of these SBDS mutations on the interaction with EFL1, and showed that all tested mutations disrupted the binding to EFL1. Binding was either severely weakened or almost abolished, depending on the assessed mutation. In higher eukaryotes, SBDS is essential for development, and lack of the protein results in early lethality. The existence of patients whose only source of SBDS consists of that with surface missense mutations highlights the importance of the interaction with EFL1 for their function. Additionally, we studied the interaction mechanism of the proteins in solution and demonstrated that binding consists of two independent and cooperative events, with domains 2⁻3 of SBDS directing the initial interaction with EFL1, followed by docking of domain 1. In solution, both proteins exhibited large flexibility and consisted of an ensemble of conformations, as demonstrated by Small Angle X-ray Scattering (SAXS) experiments.
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Affiliation(s)
- Abril Gijsbers
- Departamento de Química de Biomacromoléculas, Instituto de Química, Universidad Nacional Autónoma de México, Circuito Exterior s/n, Ciudad Universitaria, Ciudad de México 04510, Mexico.
| | - Diana Carolina Montagut
- Departamento de Química de Biomacromoléculas, Instituto de Química, Universidad Nacional Autónoma de México, Circuito Exterior s/n, Ciudad Universitaria, Ciudad de México 04510, Mexico.
| | - Alfonso Méndez-Godoy
- Departamento de Química de Biomacromoléculas, Instituto de Química, Universidad Nacional Autónoma de México, Circuito Exterior s/n, Ciudad Universitaria, Ciudad de México 04510, Mexico.
| | - Davide Altamura
- Istituto di Cristallografia, Consiglio Nazionale delle Ricerche, Via G. Amendola 122/O, 70126 Bari, Italy.
| | - Michele Saviano
- Istituto di Cristallografia, Consiglio Nazionale delle Ricerche, Via G. Amendola 122/O, 70126 Bari, Italy.
| | - Dritan Siliqi
- Istituto di Cristallografia, Consiglio Nazionale delle Ricerche, Via G. Amendola 122/O, 70126 Bari, Italy.
| | - Nuria Sánchez-Puig
- Departamento de Química de Biomacromoléculas, Instituto de Química, Universidad Nacional Autónoma de México, Circuito Exterior s/n, Ciudad Universitaria, Ciudad de México 04510, Mexico.
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34
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Diaferia C, Balasco N, Altamura D, Sibillano T, Gallo E, Roviello V, Giannini C, Morelli G, Vitagliano L, Accardo A. Assembly modes of hexaphenylalanine variants as function of the charge states of their terminal ends. Soft Matter 2018; 14:8219-8230. [PMID: 30265271 DOI: 10.1039/c8sm01441h] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
The ability of peptides to self-assemble represents a valuable tool for the development of biomaterials of biotechnological and/or biomedical interest. Diphenylalanine homodimer (FF) and its analogues are among the most promising systems in this field. The longest Phe-based building block hitherto characterized is pentaphenylalanine (F5). We studied the aggregation propensity and the structural/morphological features of assemblies of zwitterionic hexaphenylalanine H+-F6-O- and of three variants characterized by different charged states of the terminal ends (Ac-F6-Amide, H+-F6-Amide and Ac-F6-O-). As previously observed for PEGylated hexaphenylalanine (PEG8-F6), all F6 variants show a strong tendency to form β-rich assemblies in which the structural motif is constituted by antiparallel β-strands in the cross-β framework. Extensive replica exchange molecular dynamics simulations carried out on a pairs of F6 peptides indicate that the antiparallel β-structure of the final assemblies is likely dictated by the preferred association modes of the individual chains in the very early stages of the aggregation process. Our data suggest that even very small F6 peptides are properly pre-organized and prone to the build-up of the final assembly.
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Affiliation(s)
- Carlo Diaferia
- Department of Pharmacy, Research Centre on Bioactive Peptides (CIRPeB), University of Naples "Federico II", Via Mezzocannone 16, 80134, Naples, Italy.
| | - Nicole Balasco
- Institute of Biostructures and Bioimaging (IBB), CNR, Via Mezzocannone 16, 80134, Naples, Italy
| | - Davide Altamura
- Institute of Crystallography (IC), CNR, Via Amendola 122, 70126, Bari, Italy
| | - Teresa Sibillano
- Institute of Crystallography (IC), CNR, Via Amendola 122, 70126, Bari, Italy
| | - Enrico Gallo
- Department of Pharmacy, Research Centre on Bioactive Peptides (CIRPeB), University of Naples "Federico II", Via Mezzocannone 16, 80134, Naples, Italy.
| | - Valentina Roviello
- Analytical Chemistry for the Environment and CeSMA (Advanced Metrologic Service Center), University of Naples "Federico II", Corso Nicolangelo Protopisani, 80146, Naples, Italy
| | - Cinzia Giannini
- Institute of Crystallography (IC), CNR, Via Amendola 122, 70126, Bari, Italy
| | - Giancarlo Morelli
- Department of Pharmacy, Research Centre on Bioactive Peptides (CIRPeB), University of Naples "Federico II", Via Mezzocannone 16, 80134, Naples, Italy.
| | - Luigi Vitagliano
- Institute of Biostructures and Bioimaging (IBB), CNR, Via Mezzocannone 16, 80134, Naples, Italy
| | - Antonella Accardo
- Department of Pharmacy, Research Centre on Bioactive Peptides (CIRPeB), University of Naples "Federico II", Via Mezzocannone 16, 80134, Naples, Italy.
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35
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Montes-de-Oca-Ávalos JM, Altamura D, Candal RJ, Scattarella F, Siliqi D, Giannini C, Herrera ML. Relationship between nano/micro structure and physical properties of TiO 2 -sodium caseinate composite films. Food Res Int 2018; 105:129-139. [DOI: 10.1016/j.foodres.2017.11.011] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2017] [Revised: 10/30/2017] [Accepted: 11/13/2017] [Indexed: 11/26/2022]
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36
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Masi S, Aiello F, Listorti A, Balzano F, Altamura D, Giannini C, Caliandro R, Uccello-Barretta G, Rizzo A, Colella S. Connecting the solution chemistry of PbI 2 and MAI: a cyclodextrin-based supramolecular approach to the formation of hybrid halide perovskites. Chem Sci 2018; 9:3200-3208. [PMID: 29732103 PMCID: PMC5916222 DOI: 10.1039/c7sc05095j] [Citation(s) in RCA: 45] [Impact Index Per Article: 7.5] [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: 11/29/2017] [Accepted: 02/12/2018] [Indexed: 11/29/2022] Open
Abstract
Cyclodextrin macrocycles are able to modify and control the solvation equilibria of hybrid perovskite components in solution by establishing supramolecular interactions.
The evolution from solvated precursors to hybrid halide perovskite films dictates most of the photophysical and optoelectronic properties of the final polycrystalline material. Specifically, the complex equilibria and the importantly different solubilities of lead iodide (PbI2) and methylammonium iodide (MAI) induce inhomogeneous crystal growth, often leading to a defect dense film showing non-optimal optoelectronic properties and intrinsic instability. Here, we explore a supramolecular approach based on the use of cyclodextrins (CDs) to modify the underlying solution chemistry. The peculiar phenomenon demonstrated is a tunable complexation between different CDs and MA+ cations concurrent to an out of cage PbI2 intercalation, representing the first report of a connection between the solvation equilibria of the two perovskite precursors. The optimal conditions in terms of CD cavity size and polarity translate to a neat enhancement of PbI2 solubility in the reaction media, leading to an equilibration of the availability of the precursors in solution. The macroscopic result of this is an improved nucleation process, leading to a perovskite material with higher crystallinity, better optical properties and improved moisture resistance. Remarkably, the use of CDs presents a great potential for a wide range of device-related applications, as well as for the development of tailored composite materials.
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Affiliation(s)
- Sofia Masi
- Istituto di Nanotecnologia CNR-Nanotec , Distretto Tecnologico via Arnesano 16 , 73100 Lecce , Italy . ; .,Dipartimento di Matematica e Fisica "E. De Giorgi" , Università del Salento , Via per Arnesano , 73100 Lecce , Italy
| | - Federica Aiello
- Dipartimento di Chimica e Chimica Industriale , Università di Pisa , Via Moruzzi 13 , 56124 Pisa , Italy
| | - Andrea Listorti
- Istituto di Nanotecnologia CNR-Nanotec , Distretto Tecnologico via Arnesano 16 , 73100 Lecce , Italy . ; .,Dipartimento di Matematica e Fisica "E. De Giorgi" , Università del Salento , Via per Arnesano , 73100 Lecce , Italy
| | - Federica Balzano
- Dipartimento di Chimica e Chimica Industriale , Università di Pisa , Via Moruzzi 13 , 56124 Pisa , Italy
| | - Davide Altamura
- Istituto di Cristallografia , CNR-IC , Via Amendola 122/O , 70126 Bari , Italy
| | - Cinzia Giannini
- Istituto di Cristallografia , CNR-IC , Via Amendola 122/O , 70126 Bari , Italy
| | - Rocco Caliandro
- Istituto di Cristallografia , CNR-IC , Via Amendola 122/O , 70126 Bari , Italy
| | - Gloria Uccello-Barretta
- Dipartimento di Chimica e Chimica Industriale , Università di Pisa , Via Moruzzi 13 , 56124 Pisa , Italy
| | - Aurora Rizzo
- Istituto di Nanotecnologia CNR-Nanotec , Distretto Tecnologico via Arnesano 16 , 73100 Lecce , Italy . ;
| | - Silvia Colella
- Istituto di Nanotecnologia CNR-Nanotec , Distretto Tecnologico via Arnesano 16 , 73100 Lecce , Italy . ; .,Dipartimento di Matematica e Fisica "E. De Giorgi" , Università del Salento , Via per Arnesano , 73100 Lecce , Italy
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37
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Terzi A, Storelli E, Bettini S, Sibillano T, Altamura D, Salvatore L, Madaghiele M, Romano A, Siliqi D, Ladisa M, De Caro L, Quattrini A, Valli L, Sannino A, Giannini C. Effects of processing on structural, mechanical and biological properties of collagen-based substrates for regenerative medicine. Sci Rep 2018; 8:1429. [PMID: 29362434 PMCID: PMC5780384 DOI: 10.1038/s41598-018-19786-0] [Citation(s) in RCA: 69] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2017] [Accepted: 12/11/2017] [Indexed: 12/21/2022] Open
Abstract
The aim of this work was to investigate the structural features of type I collagen isoforms and collagen-based films at atomic and molecular scales, in order to evaluate whether and to what extent different protocols of slurry synthesis may change the protein structure and the final properties of the developed scaffolds. Wide Angle X-ray Scattering data on raw materials demonstrated the preferential orientation of collagen molecules in equine tendon-derived collagens, while randomly oriented molecules were found in bovine skin collagens, together with a lower crystalline degree, analyzed by the assessment of FWHM (Full Width at Half Maximum), and a certain degree of salt contamination. WAXS and FT-IR (Fourier Transform Infrared) analyses on bovine collagen-based films, showed that mechanical homogenization of slurry in acidic solution was the treatment ensuring a high content of super-organization of collagen into triple helices and a high crystalline domain into the material. In vitro tests on rat Schwannoma cells showed that Schwann cell differentiation into myelinating cells was dependent on the specific collagen film being used, and was found to be stimulated in case of homogenization-treated samples. Finally DHT/EDC crosslinking treatment was shown to affect mechanical stiffness of films depending on collagen source and processing conditions.
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Affiliation(s)
- A Terzi
- Institute of Crystallography (IC), National Research Council, Bari, Italy
| | - E Storelli
- Department of Engineering for Innovation, University of Salento, Lecce, Italy
- Neuropathology Unit, Institute of Experimental Neurology and Division of Neuroscience, IRCCS San Raffaele Scientific Institute, Milan, Italy
| | - S Bettini
- Department of Engineering for Innovation, University of Salento, Lecce, Italy
| | - T Sibillano
- Institute of Crystallography (IC), National Research Council, Bari, Italy
| | - D Altamura
- Institute of Crystallography (IC), National Research Council, Bari, Italy
| | - L Salvatore
- Department of Engineering for Innovation, University of Salento, Lecce, Italy
| | - M Madaghiele
- Department of Engineering for Innovation, University of Salento, Lecce, Italy
| | - A Romano
- Neuropathology Unit, Institute of Experimental Neurology and Division of Neuroscience, IRCCS San Raffaele Scientific Institute, Milan, Italy
| | - D Siliqi
- Institute of Crystallography (IC), National Research Council, Bari, Italy
| | - M Ladisa
- Institute of Crystallography (IC), National Research Council, Bari, Italy
| | - L De Caro
- Institute of Crystallography (IC), National Research Council, Bari, Italy
| | - A Quattrini
- Neuropathology Unit, Institute of Experimental Neurology and Division of Neuroscience, IRCCS San Raffaele Scientific Institute, Milan, Italy
| | - L Valli
- Department of Biological and Environmental Sciences and Technologies, University of Salento, Lecce, Italy
| | - A Sannino
- Department of Engineering for Innovation, University of Salento, Lecce, Italy
| | - C Giannini
- Institute of Crystallography (IC), National Research Council, Bari, Italy.
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38
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Siliqi D, Sanchez-Puig N, Altamura D, Gijsbers A, Méndez-Godoy A, Giannini C, Saviano M. Inside structure of the EFL1, SBDS and their complex. Acta Crystallogr A Found Adv 2017. [DOI: 10.1107/s2053273317089252] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022] Open
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39
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Diaferia C, Sibillano T, Altamura D, Roviello V, Vitagliano L, Giannini C, Morelli G, Accardo A. Structural Characterization of PEGylated Hexaphenylalanine Nanostructures Exhibiting Green Photoluminescence Emission. Chemistry 2017; 23:14039-14048. [PMID: 28782843 DOI: 10.1002/chem.201703055] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2017] [Indexed: 12/31/2022]
Abstract
Peptides containing aromatic residues are known to exhibit spontaneous phenomena of supramolecular organization into ordered nanostructures (NSs). In this work we studied the structural behavior and optoelectronic properties of new biocompatible materials obtained by the self-assembly of a series of hexaphenylalanines (F6) modified at the N terminus by a PEG chain of different lengths. PEG12 -F6, PEG18 -F6, and PEG24 -F6 peptides were synthesized by coupling sequentially two, three, or four units of amino-carboxy-PEG6 blocks, each one containing six oxyethylene repetitions. Changes in the length and composition of the PEG chain were found to modulate the structural organization of the phenylalanine-based nanostructures. An increase in the self-aggregation tendency was observed with longer PEG chains, whereas, independently of the PEG length, the peptide NSs display cross-β-like secondary structures with an antiparallel β-strand arrangement. WAXS/GIWAXS diffraction patterns indicate a progressive decrease in fiber order along the series. All the PEG-F6 derivatives present blue photoluminescent (PL) emission at 460 nm, with the adduct with the longest PEG chain (PEG24 -F6) showing an additional green emission at 530 nm.
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Affiliation(s)
- Carlo Diaferia
- Department of Pharmacy, Research Centre on Bioactive Peptides (CIRPeB), University of Naples "Federico II" and DFM Scarl, Via Mezzocannone 16, 80134, Naples, Italy
| | - Teresa Sibillano
- Institute of Crystallography (IC), CNR, Via Amendola 122, 70126, Bari, Italy
| | - Davide Altamura
- Institute of Crystallography (IC), CNR, Via Amendola 122, 70126, Bari, Italy
| | - Valentina Roviello
- Analytical Chemistry for the Environment and Centro Servizi Metrologici Avanzati, University of Naples "Federico II", Corso Nicolangelo Protopisani, 80146, Naples, Italy
| | - Luigi Vitagliano
- Institute of Biostructures and Bioimaging (IBB), CNR, Via Mezzocannone 16, 80134, Naples, Italy
| | - Cinzia Giannini
- Institute of Crystallography (IC), CNR, Via Amendola 122, 70126, Bari, Italy
| | - Giancarlo Morelli
- Department of Pharmacy, Research Centre on Bioactive Peptides (CIRPeB), University of Naples "Federico II" and DFM Scarl, Via Mezzocannone 16, 80134, Naples, Italy
| | - Antonella Accardo
- Department of Pharmacy, Research Centre on Bioactive Peptides (CIRPeB), University of Naples "Federico II" and DFM Scarl, Via Mezzocannone 16, 80134, Naples, Italy
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40
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Epifani M, Kaciulis S, Mezzi A, Altamura D, Giannini C, Díaz R, Force C, Genç A, Arbiol J, Siciliano P, Comini E, Concina I. Corrigendum: Inorganic Photocatalytic Enhancement: Activated RhB Photodegradation by Surface Modification of SnO 2 Nanocrystals with V 2O 5-like species. Sci Rep 2017; 7:46855. [PMID: 28731461 PMCID: PMC5520769 DOI: 10.1038/srep46855] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
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41
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Epifani M, Kaciulis S, Mezzi A, Altamura D, Giannini C, Díaz R, Force C, Genç A, Arbiol J, Siciliano P, Comini E, Concina I. Inorganic Photocatalytic Enhancement: Activated RhB Photodegradation by Surface Modification of SnO 2 Nanocrystals with V 2O 5-like species. Sci Rep 2017; 7:44763. [PMID: 28300185 PMCID: PMC5353695 DOI: 10.1038/srep44763] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2016] [Accepted: 02/13/2017] [Indexed: 11/09/2022] Open
Abstract
SnO2 nanocrystals were prepared by precipitation in dodecylamine at 100 °C, then they were reacted with vanadium chloromethoxide in oleic acid at 250 °C. The resulting materials were heat-treated at various temperatures up to 650 °C for thermal stabilization, chemical purification and for studying the overall structural transformations. From the crossed use of various characterization techniques, it emerged that the as-prepared materials were constituted by cassiterite SnO2 nanocrystals with a surface modified by isolated V(IV) oxide species. After heat-treatment at 400 °C, the SnO2 nanocrystals were wrapped by layers composed of vanadium oxide (IV-V mixed oxidation state) and carbon residuals. After heating at 500 °C, only SnO2 cassiterite nanocrystals were obtained, with a mean size of 2.8 nm and wrapped by only V2O5-like species. The samples heat-treated at 500 °C were tested as RhB photodegradation catalysts. At 10-7 M concentration, all RhB was degraded within 1 h of reaction, at a much faster rate than all pure SnO2 materials reported until now.
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Affiliation(s)
- Mauro Epifani
- Istituto per la Microelettronica e i Microsistemi, IMM-CNR, Via Monteroni, 73100 Lecce, Italy
| | - Saulius Kaciulis
- Istituto per lo Studio dei Materiali Nanostrutturati, ISMN-CNR, PO Box 10, 00015 Monterotondo Stazione, Roma, Italy
| | - Alessio Mezzi
- Istituto per lo Studio dei Materiali Nanostrutturati, ISMN-CNR, PO Box 10, 00015 Monterotondo Stazione, Roma, Italy
| | - Davide Altamura
- Istituto di Cristallografia, IC-CNR, Via Giovanni Amendola, 122/O, 70126 Bari, Italy
| | - Cinzia Giannini
- Istituto di Cristallografia, IC-CNR, Via Giovanni Amendola, 122/O, 70126 Bari, Italy
| | - Raül Díaz
- Electrochemical Processes Unit, IMDEA Energy Institute, Avda. Ramón de la Sagra, 3 28935 Móstoles, Spain
| | - Carmen Force
- NMR Unit, Centro de Apoyo Tecnológico, Universidad Rey Juan Carlos, c/Tulipán, s/n, 28933 Móstoles, Spain
| | - Aziz Genç
- Catalan Institute of Nanoscience and Nanotechnology (ICN2), CSIC and The Barcelona Institute of Science and Technology, Campus UAB, Bellaterra, 08193 Barcelona, Spain
| | - Jordi Arbiol
- Catalan Institute of Nanoscience and Nanotechnology (ICN2), CSIC and The Barcelona Institute of Science and Technology, Campus UAB, Bellaterra, 08193 Barcelona, Spain.,ICREA, Pg. Lluís Companys 23, 08010 Barcelona, Catalonia, Spain
| | - Pietro Siciliano
- Istituto per la Microelettronica e i Microsistemi, IMM-CNR, Via Monteroni, 73100 Lecce, Italy
| | - Elisabetta Comini
- Department of Information Engineering, Brescia University, Via Valotti 9, 25133 Brescia, Italy.,CNR-INO SENSOR Lab, Via Branze 45, 25123 Brescia, Italy
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42
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Camposeo A, Pensack RD, Moffa M, Fasano V, Altamura D, Giannini C, Pisignano D, Scholes GD. Anisotropic Conjugated Polymer Chain Conformation Tailors the Energy Migration in Nanofibers. J Am Chem Soc 2016; 138:15497-15505. [PMID: 27933935 PMCID: PMC5133673 DOI: 10.1021/jacs.6b10761] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2016] [Indexed: 01/22/2023]
Abstract
Conjugated polymers are complex multichromophore systems, with emission properties strongly dependent on the electronic energy transfer through active subunits. Although the packing of the conjugated chains in the solid state is known to be a key factor to tailor the electronic energy transfer and the resulting optical properties, most of the current solution-based processing methods do not allow for effectively controlling the molecular order, thus making the full unveiling of energy transfer mechanisms very complex. Here we report on conjugated polymer fibers with tailored internal molecular order, leading to a significant enhancement of the emission quantum yield. Steady state and femtosecond time-resolved polarized spectroscopies evidence that excitation is directed toward those chromophores oriented along the fiber axis, on a typical time scale of picoseconds. These aligned and more extended chromophores, resulting from the high stretching rate and electric field applied during the fiber spinning process, lead to improved emission properties. Conjugated polymer fibers are relevant to develop optoelectronic plastic devices with enhanced and anisotropic properties.
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Affiliation(s)
- Andrea Camposeo
- Istituto
Nanoscienze-CNR, Euromediterranean Center
for Nanomaterial Modelling and Technology (ECMT), via Arnesano, I-73100 Lecce, Italy
| | - Ryan D. Pensack
- Department
of Chemistry, Princeton University, Princeton, New Jersey 08544, United States
| | - Maria Moffa
- Istituto
Nanoscienze-CNR, Euromediterranean Center
for Nanomaterial Modelling and Technology (ECMT), via Arnesano, I-73100 Lecce, Italy
| | - Vito Fasano
- Dipartimento
di Matematica e Fisica “Ennio De Giorgi”, Università del Salento, via Arnesano, I-73100 Lecce, Italy
| | - Davide Altamura
- Istituto
di Cristallografia (IC-CNR), via Amendola 122/O, I-70126 Bari, Italy
| | - Cinzia Giannini
- Istituto
di Cristallografia (IC-CNR), via Amendola 122/O, I-70126 Bari, Italy
| | - Dario Pisignano
- Istituto
Nanoscienze-CNR, Euromediterranean Center
for Nanomaterial Modelling and Technology (ECMT), via Arnesano, I-73100 Lecce, Italy
- Dipartimento
di Matematica e Fisica “Ennio De Giorgi”, Università del Salento, via Arnesano, I-73100 Lecce, Italy
| | - Gregory D. Scholes
- Department
of Chemistry, Princeton University, Princeton, New Jersey 08544, United States
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43
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Giannini C, Altamura D, Siliqi D, Sibillano T, Caro LD, Pastore S, Ladisa M. X-ray scattering–based studies of nano/bio-structures with hierarchical order for nanomedicine applications. Acta Crystallogr A Found Adv 2016. [DOI: 10.1107/s2053273316093980] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
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44
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Siliqi D, Altamura D, Gijsbers A, de la Mora E, Giannini C, Sibillano T, Saviano M, Sanchez-Puig N. Small-angle X-ray scattering (SAXS) studies of the low-resolution structure of the ribosomal GTPase EFL1, the SBDS protein and their complex. Acta Crystallogr A Found Adv 2016. [DOI: 10.1107/s2053273316097308] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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45
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Sibillano T, De Caro L, Scattarella F, Scarcelli G, Siliqi D, Altamura D, Liebi M, Ladisa M, Bunk O, Giannini C. Interfibrillar packing of bovine cornea by table-top and synchrotron scanning SAXS microscopy. J Appl Crystallogr 2016; 49:1231-1239. [PMID: 27504077 PMCID: PMC4970496 DOI: 10.1107/s1600576716010396] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2016] [Accepted: 06/27/2016] [Indexed: 11/10/2022] Open
Abstract
Bovine cornea was studied with scanning small-angle X-ray scattering (SAXS) microscopy, by using both synchrotron radiation and a microfocus laboratory source. A combination of statistical (adaptive binning and canonical correlation analysis) and crystallographic (pair distribution function analysis) approaches allowed inspection of the collagen lateral packing of the supramolecular structure. Results reveal (i) a decrease of the interfibrillar distance and of the shell thickness around the fibrils from the periphery to the center of the cornea, (ii) a uniform fibril diameter across the explored area, and (iii) a distorted quasi-hexagonal arrangement of the collagen fibrils. The results are in agreement with existing literature. The overlap between laboratory and synchrotron-radiation data opens new perspectives for further studies on collagen-based/engineered tissues by the SAXS microscopy technique at laboratory-scale facilities.
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Affiliation(s)
- T. Sibillano
- Istituto di Cristallografia (IC-CNR), via Amendola 122/O, Bari, I-70126, Italy
| | - L. De Caro
- Istituto di Cristallografia (IC-CNR), via Amendola 122/O, Bari, I-70126, Italy
| | - F. Scattarella
- IOM CNR Laboratorio TASC, Area Science Park – Basovizza, Bld MM SS 14, Trieste, 34149, Italy
| | - G. Scarcelli
- Fischell Department of Bioengineering, University of Maryland, College Park, MD 20742, USA
| | - D. Siliqi
- Istituto di Cristallografia (IC-CNR), via Amendola 122/O, Bari, I-70126, Italy
| | - D. Altamura
- Istituto di Cristallografia (IC-CNR), via Amendola 122/O, Bari, I-70126, Italy
| | - M. Liebi
- Paul Scherrer Institut, Swiss Light Source, 5232, Villigen PSI, Switzerland
| | - M. Ladisa
- Istituto di Cristallografia (IC-CNR), via Amendola 122/O, Bari, I-70126, Italy
| | - O. Bunk
- Fischell Department of Bioengineering, University of Maryland, College Park, MD 20742, USA
| | - C. Giannini
- Istituto di Cristallografia (IC-CNR), via Amendola 122/O, Bari, I-70126, Italy
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46
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Siliqi D, De Caro L, Ladisa M, Scattarella F, Mazzone A, Altamura D, Sibillano T, Giannini C. SUNBIM: a package for X-ray imaging of nano- and biomaterials using SAXS, WAXS, GISAXS and GIWAXS techniques. J Appl Crystallogr 2016. [DOI: 10.1107/s1600576716006932] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
SUNBIM(supramolecular and submolecular nano- and biomaterials X-ray imaging) is a suite of integrated programs which, through a user-friendly graphical user interface, are optimized to perform the following: (i)q-scale calibration and two-dimensional → one-dimensional folding on small- and wide-angle X-ray scattering (SAXS/WAXS) and grazing-incidence SAXS/WAXS (GISAXS/GIWAXS) data, also including possible eccentricity corrections for WAXS/GIWAXS data; (ii) background evaluation and subtraction, denoising, and deconvolution of the primary beam angular divergence on SAXS/GISAXS profiles; (iii) indexing of two-dimensional GISAXS frames and extraction of one-dimensional GISAXS profiles along specific cuts; (iv) scanning microscopy in absorption and SAXS contrast. The latter includes collection of transmission and SAXS data, respectively, in a mesh across a mm2area, organization of the as-collected data into a single composite image of transmission values or two-dimensional SAXS frames, analysis of the composed data to derive the absorption map and/or the spatial distribution, and orientation of nanoscale structures over the scanned area.
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47
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Altamura D, Pastore SG, Raucci MG, Siliqi D, De Pascalis F, Nacucchi M, Ambrosio L, Giannini C. Scanning Small- and Wide-Angle X-ray Scattering Microscopy Selectively Probes HA Content in Gelatin/Hydroxyapatite Scaffolds for Osteochondral Defect Repair. ACS Appl Mater Interfaces 2016; 8:8728-8736. [PMID: 27020229 DOI: 10.1021/acsami.6b00557] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
This study is aimed at investigating the structure of a scaffold made of bovine gelatin and hydroxyapatite for bone tissue engineering purposes. In particular, the detailed characterization of such a material has a great relevance because of its application in the healing process of the osteochondral defect that consists of a damage of cartilage and injury of the adjacent subchondral bone, significantly compromising millions of patient's quality of life. Two different techniques exploiting X-ray radiation, with table-top setups, are used: microtomography (micro-CT) and microdiffraction. Micro-CT characterizes the microstructure in the three dimensions at the micrometer scale spatial resolution, whereas microdiffraction provides combined structural/morphological information at the atomic and nanoscale, in two dimensional microscopy images with a hundred micrometer spatial resolution. The combination of these two techniques allowed an appropriate structural characterization for the purpose of validating the engineering approach used for the realization of the hydroxyapatite gradient across the scaffold, with properties close to the natural model.
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Affiliation(s)
- Davide Altamura
- Institute of Crystallography (IC), National Research Council , Bari 70125, Italy
| | - Stella G Pastore
- Institute of Crystallography (IC), National Research Council , Bari 70125, Italy
| | - Maria G Raucci
- Institute of Polymers, Composites, and Biomaterials (IPCB), National Research Council , Naples, Italy
| | - Dritan Siliqi
- Institute of Crystallography (IC), National Research Council , Bari 70125, Italy
| | - Fabio De Pascalis
- Italian National Agency for New Technologies, Energy and Sustainable Economic Development (ENEA) , Brindisi 72100, Italy
| | - Michele Nacucchi
- Italian National Agency for New Technologies, Energy and Sustainable Economic Development (ENEA) , Brindisi 72100, Italy
| | - Luigi Ambrosio
- Institute of Polymers, Composites, and Biomaterials (IPCB), National Research Council , Naples, Italy
- Department of Chemical Sciences and Materials Technology (DSCTM), National Research Council , Rome 000133, Italy
| | - Cinzia Giannini
- Institute of Crystallography (IC), National Research Council , Bari 70125, Italy
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48
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De Caro L, Altamura D, Arciniegas M, Siliqi D, Kim MR, Sibillano T, Manna L, Giannini C. Ptychographic Imaging of Branched Colloidal Nanocrystals Embedded in Free-Standing Thick Polystyrene Films. Sci Rep 2016; 6:19397. [PMID: 26775682 PMCID: PMC4726119 DOI: 10.1038/srep19397] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [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: 01/13/2015] [Accepted: 12/07/2015] [Indexed: 12/30/2022] Open
Abstract
Research on composite materials is facing, among others, the challenging task of incorporating nanocrystals, and their superstructures, in polymer matrices. Electron microscopy can typically image nanometre-scale structures embedded in thin polymer films, but not in films that are micron size thick. Here, X-ray Ptychography was used to visualize, with a resolution of a few tens of nanometers, how CdSe/CdS octapod-shaped nanocrystals self-assemble in polystyrene films of 24 ± 4 μm, providing a unique means for non-destructive investigation of nanoparticles distribution and organization in thick polymer films.
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Affiliation(s)
- Liberato De Caro
- Istituto di Cristallografia, Consiglio Nazionale delle Ricerche, via Amendola 122/O, 70126 Bari, Italy
| | - Davide Altamura
- Istituto di Cristallografia, Consiglio Nazionale delle Ricerche, via Amendola 122/O, 70126 Bari, Italy
| | - Milena Arciniegas
- Istituto Italiano di Tecnologia (IIT), via Morego 30, IT-16163 Genova, Italy
| | - Dritan Siliqi
- Istituto di Cristallografia, Consiglio Nazionale delle Ricerche, via Amendola 122/O, 70126 Bari, Italy
| | - Mee R Kim
- Istituto Italiano di Tecnologia (IIT), via Morego 30, IT-16163 Genova, Italy
| | - Teresa Sibillano
- Istituto di Cristallografia, Consiglio Nazionale delle Ricerche, via Amendola 122/O, 70126 Bari, Italy
| | - Liberato Manna
- Istituto Italiano di Tecnologia (IIT), via Morego 30, IT-16163 Genova, Italy
| | - Cinzia Giannini
- Istituto di Cristallografia, Consiglio Nazionale delle Ricerche, via Amendola 122/O, 70126 Bari, Italy
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49
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Siliqi D, Sanchez-Puig N, de la Mora E, Méndez-Godoy A, Altamura D, Giannini C, Sibillano T, Saviano M. Studies of the conformational changes on the ribosomal GTPase EFL1 using SAXS. Acta Crystallogr A Found Adv 2015. [DOI: 10.1107/s2053273315096175] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022] Open
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50
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Verdolini R, Arkoumani E, Pandya D, Parmar S, Altamura D. Yellow Changes of the Skin: A Quiz. Diffuse plane normolipemic xanthomatosis associated with multiple myeloma. Acta Derm Venereol 2015; 95:762-3. [PMID: 25669308 DOI: 10.2340/00015555-2066] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Affiliation(s)
- Roberto Verdolini
- Department of Dermatology, The Princess Alexandra Hospital Trust, , CM20 1QX Harlow, United Kingdom.
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