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Artus GRJ, Bottone D, Seeger S. Silicon Oxycarbide Coatings Consisting of Defined Bottom-Up-Grown Nanostructures. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2023; 19:e2303079. [PMID: 37317021 DOI: 10.1002/smll.202303079] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/12/2023] [Revised: 05/30/2023] [Indexed: 06/16/2023]
Abstract
Silicon oxycarbide (SiOC) materials have arisen in the past few decades as a promising new class of glasses and glass-ceramics thanks to their advantageous chemical and thermal properties. Many applications, such as ion storage, sensing, filtering, or catalysis, require materials or coatings with high surface area and might benefit from the high thermal stability of SiOC. This work reports the first facile bottom-up approach to textured high surface area SiOC coatings obtained via direct pyrolysis of polysiloxane structures of well-defined shapes, such as nanofilaments or microrods. This work further investigates the thermal behavior of these structures by means of FT-IR, SEM, and EDX up to 1400 °C. The rods shrink in volume by ≈30% while their aspect ratio remains unaffected by pyrolysis until at least 1100 °C. The nano-sized filaments show signs of viscous flow already at a comparably low temperature of 900 °C which is very probably due to the nano-size effect. This might open a way to experimentally study the size-effect on the glass transition temperature of oxide glasses, an experimentally unexplored but very relevant topic. These structures have great potential, for example, as ion storage materials and supports in high temperature catalysis and CO2 conversion.
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Affiliation(s)
| | - Davide Bottone
- Department of Chemistry, University of Zurich, Winterthurerstrasse 190, Zurich, CH-8057, Switzerland
| | - Stefan Seeger
- Department of Chemistry, University of Zurich, Winterthurerstrasse 190, Zurich, CH-8057, Switzerland
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Ghezzi B, Lagonegro P, Pece R, Parisi L, Bianchi M, Tatti R, Verucchi R, Attolini G, Quaretti M, Macaluso GM. Osteoblast adhesion and response mediated by terminal -SH group charge surface of SiOxCy nanowires. JOURNAL OF MATERIALS SCIENCE. MATERIALS IN MEDICINE 2019; 30:43. [PMID: 30929122 DOI: 10.1007/s10856-019-6241-y] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/17/2018] [Accepted: 02/18/2019] [Indexed: 06/09/2023]
Abstract
Robust cell adhesion is known to be necessary to promote cell colonization of biomaterials and differentiation of progenitors. In this paper, we propose the functionalization of Silicon Oxycarbide (SiOxCy) nanowires (NWs) with 3-mercaptopropyltrimethoxysilane (MPTMS), a molecule containing a terminal -SH group. The aim of this functionalization was to develop a surface capable to adsorb proteins and promote cell adhesion, proliferation and a better deposition of extracellular matrix. This functionalization can be used to anchor other structures such as nanoparticles, proteins or aptamers. It was observed that surface functionalization markedly affected the pattern of protein adsorption, as well as the in vitro proliferation of murine osteoblastic cells MC3T3-E1, which was increased on functionalized nanowires (MPTMS-NWs) compared to bare NWs (control) (p < 0.0001) after 48 h. The cells showed a better adhesion on MPTMS-NWs than on bare NWs, as confirmed by immunofluorescence studies on the cytoskeleton, which showed a more homogeneous vinculin distribution. Gene expression analysis showed higher expression levels for alkaline phosphatase and collagen I, putative markers of the osteoblast initial differentiation stage. These results suggest that functionalization of SiOxCy nanowires with MPTMS enhances cell growth and the expression of an osteoblastic phenotype, providing a promising strategy to improve the biocompatibility of SiOxCy nanowires for biomedical applications.
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Affiliation(s)
- Benedetta Ghezzi
- Centro Universitario di Odontoiatria, University of Parma, Via Gramsci 14, 43126, Parma, Italy
- Dipartimento di Medicina e Chirurgia, University of Parma, Via Gramsci 14, 43126, Parma, Italy
| | - Paola Lagonegro
- ISMAC-CNR, Institute for macromolecular studies, Via Corti, 12, 20133, Milano, Italy.
- IMEM-CNR, Institute of Materials for Electronics and Magnetism, Parco Area delle Scienze, 37/A, 43124, Parma, Italy.
| | - Roberta Pece
- Centro Universitario di Odontoiatria, University of Parma, Via Gramsci 14, 43126, Parma, Italy
- Dipartimento di Medicina e Chirurgia, University of Parma, Via Gramsci 14, 43126, Parma, Italy
- School of Medicine, University of Genoa, DIMES, L.go R. Benzi 10, Genoa, 16131, Italy
| | - Ludovica Parisi
- Centro Universitario di Odontoiatria, University of Parma, Via Gramsci 14, 43126, Parma, Italy
- Dipartimento di Medicina e Chirurgia, University of Parma, Via Gramsci 14, 43126, Parma, Italy
| | - Massimiliano Bianchi
- Dipartimento di Medicina e Chirurgia, University of Parma, Via Gramsci 14, 43126, Parma, Italy
| | - Roberta Tatti
- IMEM-CNR, Institute of Materials for Electronics and Magnetism, Trento unit, Via alla Cascata, 56/C, 38123, Trento, Italy
| | - Roberto Verucchi
- IMEM-CNR, Institute of Materials for Electronics and Magnetism, Trento unit, Via alla Cascata, 56/C, 38123, Trento, Italy
| | - Giovanni Attolini
- IMEM-CNR, Institute of Materials for Electronics and Magnetism, Parco Area delle Scienze, 37/A, 43124, Parma, Italy
| | - Martina Quaretti
- IMEM-CNR, Institute of Materials for Electronics and Magnetism, Parco Area delle Scienze, 37/A, 43124, Parma, Italy
| | - Guido M Macaluso
- Centro Universitario di Odontoiatria, University of Parma, Via Gramsci 14, 43126, Parma, Italy
- Dipartimento di Medicina e Chirurgia, University of Parma, Via Gramsci 14, 43126, Parma, Italy
- ISMAC-CNR, Institute for macromolecular studies, Via Corti, 12, 20133, Milano, Italy
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Lagonegro P, Rossi F, Galli C, Smerieri A, Alinovi R, Pinelli S, Rimoldi T, Attolini G, Macaluso G, Macaluso C, Saddow S, Salviati G. A cytotoxicity study of silicon oxycarbide nanowires as cell scaffold for biomedical applications. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2017; 73:465-471. [DOI: 10.1016/j.msec.2016.12.096] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/03/2016] [Revised: 11/16/2016] [Accepted: 12/20/2016] [Indexed: 12/20/2022]
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Negri M, Dhanabalan SC, Attolini G, Lagonegro P, Campanini M, Bosi M, Fabbri F, Salviati G. Tuning the radial structure of core–shell silicon carbide nanowires. CrystEngComm 2015. [DOI: 10.1039/c4ce01381f] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
By varying the growth conditions in chemical vapour deposition synthesis we demonstrate the possible tuning of the core–shell ratio of SiC/SiO2 nanowires.
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Affiliation(s)
- M. Negri
- University of Parma
- via Università
- 12-43121 Parma, Italy
- IMEM-CNR
- 43124 Parma, Italy
| | | | | | - P. Lagonegro
- University of Parma
- via Università
- 12-43121 Parma, Italy
- IMEM-CNR
- 43124 Parma, Italy
| | - M. Campanini
- University of Parma
- via Università
- 12-43121 Parma, Italy
- IMEM-CNR
- 43124 Parma, Italy
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