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Kawondera R, Bonechi M, Maccioni I, Giurlani W, Salzillo T, Venuti E, Mishra D, Fontanesi C, Innocenti M, Mehlana G, Mtangi W. Chiral "doped" MOFs: an electrochemical and theoretical integrated study. Front Chem 2023; 11:1215619. [PMID: 37614707 PMCID: PMC10442718 DOI: 10.3389/fchem.2023.1215619] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2023] [Accepted: 07/27/2023] [Indexed: 08/25/2023] Open
Abstract
This work reports on the electrochemical behaviour of Fe and Zn based metal-organic framework (MOF) compounds, which are "doped" with chiral molecules, namely: cysteine and camphor sulfonic acid. Their electrochemical behaviour was thoroughly investigated via "solid-state" electrochemical measurements, exploiting an "ad hoc" tailored experimental set-up: a paste obtained by carefully mixing the MOF with graphite powder is deposited on a glassy carbon (GC) surface. The latter serves as the working electrode (WE) in cyclic voltammetry (CV) measurements. Infrared (IR), X-ray diffraction (XRD) and absorbance (UV-Vis) techniques are exploited for a further characterization of the MOFs' structural and electronic properties. The experimental results are then compared with DFT based quantum mechanical calculations. The electronic and structural properties of the MOFs synthesized in this study depend mainly on the type of metal center, and to a minor extent on the chemical nature of the dopant.
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Affiliation(s)
- Rufaro Kawondera
- Institute of Materials Science, Processing and Engineering Technology, Chinhoyi University of Technology, Chinhoyi, Zimbabwe
| | - Marco Bonechi
- Department of Chemistry, University of Firenze, Firenze, Italy
| | - Irene Maccioni
- Department of Chemistry, University of Firenze, Firenze, Italy
| | - Walter Giurlani
- Department of Chemistry, University of Firenze, Firenze, Italy
- National Interuniversity Consortium of Materials Science and Technology (INSTM), Firenze, Italy
| | - Tommaso Salzillo
- Department of Industrial Chemistry “Toso Montanari”, University of Bologna, Bologna, Italy
| | - Elisabetta Venuti
- Department of Industrial Chemistry “Toso Montanari”, University of Bologna, Bologna, Italy
| | - Debabrata Mishra
- Department of Physics and Astrophysics, University of Delhi, New Delhi, India
| | - Claudio Fontanesi
- National Interuniversity Consortium of Materials Science and Technology (INSTM), Firenze, Italy
- Department of Engineering “Enzo Ferrari” (DIEF), University of Modena, Modena, Italy
| | - Massimo Innocenti
- Department of Chemistry, University of Firenze, Firenze, Italy
- National Interuniversity Consortium of Materials Science and Technology (INSTM), Firenze, Italy
- Center for Colloid and Surface Science (CSGI), Florence, Italy
| | - Gift Mehlana
- Department of Chemical Sciences, Midlands State University, Gweru, Zimbabwe
| | - Wilbert Mtangi
- Institute of Materials Science, Processing and Engineering Technology, Chinhoyi University of Technology, Chinhoyi, Zimbabwe
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Sariogullari H, Aroguz AZ, Adiguzel Z. Fabrication of a Patterned Scaffold Using Soft Lithography Technique to be Used in Cell Growth Applications. Mol Biotechnol 2022; 65:786-793. [PMID: 36214977 DOI: 10.1007/s12033-022-00581-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2022] [Accepted: 09/28/2022] [Indexed: 11/25/2022]
Abstract
In recent years, within tissue engineering, cell growth on patterned surfaces have gained significant attention. Growing cells in patterns is important to manufacture polymeric tissues that can be used within the medical field. For this reason, the main focus of this study was to prepare patterned scaffolds using Titanium (Ti) and polyvinyl chloride (PVC) covered on microscope lamellas and examine their liability for cell growth. A polydimethylsiloxane stamp was initially prepared which was then used to transfer a predefined pattern onto PVC- and Ti-covered surfaces. Cell growth experiments were performed on the prepared materials by seeding L929 mouse fibroblasts. The growth of cells seeded on the surface of the scaffolds were spectroscopically followed using Neutral Red uptake assay. The results showed cell proliferation on both patterned surfaces, however, it was higher on Ti-covered samples. In addition, three different alkanethiols were tested for cell adhesion on patterned surfaces. A higher number of cell proliferation was observed with undecanethiol, which has a shorter alkane group among them. The morphological properties of the samples before and after cell-seeding were analyzed via scanning electron microscope and optical microscopy. Significant amount of cell proliferation was observed on all of the prepared samples.
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Affiliation(s)
- Hidayet Sariogullari
- Department of Chemistry, Gebze Technical University, 41400, Gebze, Kocaeli, Turkey
| | - Ayse Z Aroguz
- Department of Chemistry, Engineering Faculty, Istanbul University-Cerrahpasa, Avcilar, 34320, Istanbul, Turkey.
| | - Zelal Adiguzel
- Basic Medical Sciences, Department of Molecular Biology and Genetics, Koc University, Istanbul, Turkey
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Giurlani W, Vizza M, Leonardi AA, Lo Faro MJ, Irrera A, Innocenti M. Optimization and Characterization of Electrodeposited Cadmium Selenide on Monocrystalline Silicon. NANOMATERIALS (BASEL, SWITZERLAND) 2022; 12:610. [PMID: 35214938 PMCID: PMC8875289 DOI: 10.3390/nano12040610] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/21/2022] [Revised: 02/04/2022] [Accepted: 02/07/2022] [Indexed: 12/29/2022]
Abstract
In this work, the optimal conditions for the electrodeposition of a CdSe film on n-Si were demonstrated. The structural and optical properties of the bare films and after annealing were studied. In particular, the crystallinity and photoluminescence of the samples were evaluated, and after annealing at 400 °C under a nitrogen atmosphere, a PL increase by almost an order of magnitude was observed. This paper opens the route towards the use of electrochemical deposition as a cost-effective and easy fabrication approach that can be used to integrate other interesting materials in the silicon-manufacturing processes for the realization of optoelectronic devices.
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Affiliation(s)
- Walter Giurlani
- Dipartimento di Chimica, Università degli Studi di Firenze, Via della Lastruccia 3, 50019 Sesto Fiorentino, Italy; (W.G.); (M.V.)
- INSTM, Consorzio Interuniversitario Nazionale per la Scienza e Tecnologia dei Materiali, Via G. Giusti 9, 50121 Firenze, Italy
| | - Martina Vizza
- Dipartimento di Chimica, Università degli Studi di Firenze, Via della Lastruccia 3, 50019 Sesto Fiorentino, Italy; (W.G.); (M.V.)
| | - Antonio Alessio Leonardi
- URT LAB SENS, Beyond Nano—CNR, c/o Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, Viale Ferdinando Stagno d’Alcontres 5, 98166 Messina, Italy; (A.A.L.); (M.J.L.F.); (A.I.)
- CNR-IPCF, Istituto per i Processi Chimico-Fisici, V.le F. Stagno D’Alcontres 37, 98158 Messina, Italy
- Dipartimento di Fisica ed Astronomia, Università di Catania, Via Santa Sofia 64, 95123 Catania, Italy
| | - Maria Josè Lo Faro
- URT LAB SENS, Beyond Nano—CNR, c/o Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, Viale Ferdinando Stagno d’Alcontres 5, 98166 Messina, Italy; (A.A.L.); (M.J.L.F.); (A.I.)
- CNR-IPCF, Istituto per i Processi Chimico-Fisici, V.le F. Stagno D’Alcontres 37, 98158 Messina, Italy
- Dipartimento di Fisica ed Astronomia, Università di Catania, Via Santa Sofia 64, 95123 Catania, Italy
| | - Alessia Irrera
- URT LAB SENS, Beyond Nano—CNR, c/o Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, Viale Ferdinando Stagno d’Alcontres 5, 98166 Messina, Italy; (A.A.L.); (M.J.L.F.); (A.I.)
- CNR-IPCF, Istituto per i Processi Chimico-Fisici, V.le F. Stagno D’Alcontres 37, 98158 Messina, Italy
| | - Massimo Innocenti
- Dipartimento di Chimica, Università degli Studi di Firenze, Via della Lastruccia 3, 50019 Sesto Fiorentino, Italy; (W.G.); (M.V.)
- INSTM, Consorzio Interuniversitario Nazionale per la Scienza e Tecnologia dei Materiali, Via G. Giusti 9, 50121 Firenze, Italy
- CNR-ICCOM, Istituto di Chimica dei Composti OrganoMetallici, Via Madonna del Piano 10, 50019 Sesto Fiorentino, Italy
- CSGI, Center for Colloid and Surface Science, Via della Lastruccia 3, 50019 Sesto Fiorentino, Italy
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