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Allende P, Orera A, Laguna-Bercero MÁ, Valenzuela ML, Díaz C, Barrientos L. Insights of the formation mechanism of nanostructured titanium oxide polymorphs from different macromolecular metal-complex precursors. Heliyon 2021; 7:e07684. [PMID: 34386635 PMCID: PMC8346649 DOI: 10.1016/j.heliyon.2021.e07684] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2021] [Revised: 05/26/2021] [Accepted: 07/26/2021] [Indexed: 11/15/2022] Open
Abstract
The insight into the mechanism of the unprecedented formation of pure anatase TiO2 from the macromolecular (Chitosan)•(TiOSO4)n precursor has been investigated using micro Raman spectroscopy, Scanning Electron Microscopy (SEM) and thermogravimetric/differential thermal analysis (TGA/DTA). The formation of a graphitic film was observed upon annealing of the macromolecular precursor, reaching a maximum at about 500 °C due to decomposition of the polymeric chain of the Chitosan and (PS-co-4-PVP) polymers. The proposed mechanism is the nucleation and growth of TiO2 nanoparticles over this graphitic substrate. SEM and Raman measurements confirm the formation of TiO2 anatase around 400 °C. The observation of an exothermic peak around 260 °C in the TGA/DTA measurements confirms the decomposition of carbon chains to form graphite. Another exothermic peak around 560 °C corresponds to the loss of additional carbonaceous residues.
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Affiliation(s)
- Patricio Allende
- Departamento de Química, Universidad Católica del Norte, Avda Angamos, 0610, Antofagasta, Chile
| | - Alodia Orera
- Instituto de Nanociencia y Materiales de Aragón (INMA), CSIC-Universidad de Zaragoza, 50009, Zaragoza, Spain
| | - Miguel Á. Laguna-Bercero
- Instituto de Nanociencia y Materiales de Aragón (INMA), CSIC-Universidad de Zaragoza, 50009, Zaragoza, Spain
| | - María Luisa Valenzuela
- Universidad Autónoma de Chile, Institute of Applied Chemical Sciences, Inorganic Chemistry and Molecular Materials Group, Facultad de Ingeneria, Porvenir 580, Edificio L, Primer Piso, Temuco, Chile
| | - Carlos Díaz
- Departamento de Química, Facultad de Química, Universidad de Chile, La Palmeras 3425, Nuñoa, Casilla, 653, Santiago de Chile, Chile
| | - Lorena Barrientos
- Facultad de Química y de Farmacia, Centro de Investigación en Nanotecnología y Materiales Avanzados CIEN-UC, Pontificia Universidad Católica de Chile, Vicuña Mackenna, 4860, Macul, Santiago de Chile, Chile
- Millennium Nuclei on Catalytic Processes Towards Sustainable Chemistry (CSC), Chile
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Benvidi A, Saucedo NM, Ramnani P, Villarreal C, Mulchandani A, Tezerjani MD, Jahanbani S. Electro‐oxidized Monolayer CVD Graphene Film Transducer for Ultrasensitive Impedimetric DNA Biosensor. ELECTROANAL 2018. [DOI: 10.1002/elan.201700654] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Ali Benvidi
- Department of Chemical and Environmental Engineering University of California Riverside CA 92521 USA
- Department of Chemistry Yazd University Yazd Iran
| | - Nuvia M. Saucedo
- Department of Chemical and Environmental Engineering University of California Riverside CA 92521 USA
- Department of Chemistry University of California Riverside CA 92521 USA
| | - Pankaj Ramnani
- Department of Chemical and Environmental Engineering University of California Riverside CA 92521 USA
| | - Claudia Villarreal
- Materials Science and Engineering Program University of California Riverside CA 92521 USA
| | - Ashok Mulchandani
- Department of Chemical and Environmental Engineering University of California Riverside CA 92521 USA
- Materials Science and Engineering Program University of California Riverside CA 92521 USA
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Díaz C, Valenzuela ML, Laguna-Bercero MA, Orera A, Bobadilla D, Abarca S, Peña O. Synthesis and magnetic properties of nanostructured metallic Co, Mn and Ni oxide materials obtained from solid-state metal-macromolecular complex precursors. RSC Adv 2017. [DOI: 10.1039/c7ra00782e] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Reaction of chitosan with metallic salts gives nanostructured Mn2O3, Co3O4 and NiO. Graphitic carbon is formed over the nanostructured oxides.
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Affiliation(s)
- C. Díaz
- Departamento de Química
- Facultad de Química
- Universidad de Chile
- Santiago de Chile
- Chile
| | - M. L. Valenzuela
- Universidad Autónoma de Chile
- Instituto de Ciencias Químicas Aplicadas
- Inorganic Chemistry and Molecular Material Center
- Santiago de Chile
- Chile
| | - M. A. Laguna-Bercero
- Instituto de Ciencia de Materiales de Aragón (ICMA)
- CSIC – Universidad de Zaragoza
- Zaragoza
- Spain
| | - A. Orera
- Instituto de Ciencia de Materiales de Aragón (ICMA)
- CSIC – Universidad de Zaragoza
- Zaragoza
- Spain
| | - D. Bobadilla
- Departamento de Química
- Facultad de Química
- Universidad de Chile
- Santiago de Chile
- Chile
| | - S. Abarca
- Departamento de Química
- Facultad de Química
- Universidad de Chile
- Santiago de Chile
- Chile
| | - O. Peña
- Sciences Chimiques de Rennes
- UMR-CNRS 6226
- Université de Rennes 1
- 35042 Rennes Cedex
- France
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4
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Simple and label-free electrochemical impedance Amelogenin gene hybridization biosensing based on reduced graphene oxide. Biosens Bioelectron 2014; 58:145-52. [DOI: 10.1016/j.bios.2014.01.053] [Citation(s) in RCA: 68] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2013] [Revised: 01/22/2014] [Accepted: 01/28/2014] [Indexed: 11/19/2022]
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Manno D, Serra A, Buccolieri A, Panzarini E, Carata E, Tenuzzo B, Izzo D, Vergallo C, Rossi M, Dini L. Silver and carbon nanoparticles toxicity in sea urchin Paracentrotus lividus embryos. ACTA ACUST UNITED AC 2013. [DOI: 10.1515/bnm-2013-0016] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
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Tojo T, Fujisawa K, Muramatsu H, Hayashi T, Kim YA, Endo M, Terrones M, Dresselhaus MS. Controlled interlayer spacing of scrolled reduced graphene nanotubes by thermal annealing. RSC Adv 2013. [DOI: 10.1039/c3ra22976a] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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Manno D, Carata E, Tenuzzo BA, Panzarini E, Buccolieri A, Filippo E, Rossi M, Serra A, Dini L. High ordered biomineralization induced by carbon nanoparticles in the sea urchin Paracentrotus lividus. NANOTECHNOLOGY 2012; 23:495104. [PMID: 23165288 DOI: 10.1088/0957-4484/23/49/495104] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
A surprising and unexpected biomineralization process was observed during toxicological assessment of carbon nanoparticles on Paracentrotus lividus (sea urchin) pluteus larvae. The larvae activate a process of defense against external material, by incorporating the nanoparticles into microstructures of aragonite similarly to pearl oysters. Aiming at a better understanding of this phenomenon, the larvae were exposed to increasing concentrations of carbon nanoparticles and the biomineralization products were analyzed by electron microscopy, x-ray diffraction and Raman spectroscopy. In order to evaluate the possible influence of Sp-CyP-1 expression on this biomineralization process by larvae, analyses of gene expression (Sp-CyP-1) and calcein labeling were performed. Overall, we report experimental evidence about the capability of carbon nanoparticles to induce an increment of Sp-CyP-1 expression with the consequent activation of a biomineralization process leading to the production of a new pearl-like biomaterial never previously observed in sea urchins.
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Affiliation(s)
- Daniela Manno
- Interdepartmental Laboratory of Physics Applied to Materials Science, Italy.
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Díaz C, Valenzuela ML, Lavayen V, O’Dwyer C. Layered Graphitic Carbon Host Formation during Liquid-free Solid State Growth of Metal Pyrophosphates. Inorg Chem 2012; 51:6228-36. [DOI: 10.1021/ic300767h] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Carlos Díaz
- Department of Chemistry, Faculty
of Science, Universidad of Chile, Casilla
653, Santiago, Chile
| | - María Luisa Valenzuela
- Departamento
de Ciencias Quimicas,
Facultad de Ciencias Exactas, Universidad Andres Bello, Av. Republica 275, Santiago, Chile
| | - Vladimir Lavayen
- Faculdade de Química, Pontifícia Universidade Católica do Rio Grande do Sul, Porto Alegre-RS
CEP 90619-900, Brazil
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Paul RK, Badhulika S, Niyogi S, Haddon RC, Boddu VM, Costales-Nieves C, Bozhilov KN, Mulchandani A. The production of oxygenated polycrystalline graphene by one-step ethanol-chemical vapor deposition. CARBON 2011; 49:3789-3795. [PMID: 22408276 PMCID: PMC3293400 DOI: 10.1016/j.carbon.2011.04.070] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
Large-area mono- and bilayer graphene films were synthesized on Cu foil (~ 1 inch(2)) in about 1 min by a simple ethanol-chemical vapor deposition (CVD) technique. Raman spectroscopy and high resolution transmission electron microscopy revealed the synthesized graphene films to have polycrystalline structures with 2-5 nm individual crystallite size which is a function of temperature up to 1000°C. X-ray photoelectron spectroscopy investigations showed about 3 atomic% carboxylic (COOH) functional groups were formed during growth. The field-effect transistor devices fabricated using polycrystalline graphene as conducting channel (L(c)=10 μm; W(c)=50 μm) demonstrated a p-type semiconducting behavior with high drive current and Dirac point at ~35 V. This simple one-step method of growing large area polycrystalline graphene films with semiconductor properties and easily functionalizable groups should assist in the realization of potential of polycrystalline graphene for nanoelectronics, sensors and energy storage devices.
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Affiliation(s)
- Rajat K. Paul
- Department of Mechanical Engineering, University of California, Riverside, CA 92521, USA
- Department of Electrical Engineering, University of California, Riverside, CA 92521, USA
| | - Sushmee Badhulika
- Department of Electrical Engineering, University of California, Riverside, CA 92521, USA
| | - Sandip Niyogi
- Department of Chemistry, University of California, Riverside, CA 92521, USA
- Chemical and Environmental Engineering and Center for Nanoscale Science and Engineering, University of California, Riverside, CA 92521, USA
| | - Robert C. Haddon
- Department of Chemistry, University of California, Riverside, CA 92521, USA
- Chemical and Environmental Engineering and Center for Nanoscale Science and Engineering, University of California, Riverside, CA 92521, USA
| | - Veera M. Boddu
- US Army Engineer Research and Development Center and Construction Engineering Research Laboratory, Champaign, IL 61822, USA
| | - Carmen Costales-Nieves
- US Army Engineer Research and Development Center and Construction Engineering Research Laboratory, Champaign, IL 61822, USA
| | - Krassimir N. Bozhilov
- Central Facility for Advanced Microscopy and Microanalysis, University of California, Riverside, CA 92521, USA
| | - Ashok Mulchandani
- Department of Chemistry, University of California, Riverside, CA 92521, USA
- Chemical and Environmental Engineering and Center for Nanoscale Science and Engineering, University of California, Riverside, CA 92521, USA
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Fujisawa K, Hasegawa T, Shimamoto D, Muramatsu H, Jung YC, Hayashi T, Kim YA, Endo M. Boron Atoms as Loop Accelerator and Surface Stabilizer in Platelet-Type Carbon Nanofibers. Chemphyschem 2010; 11:2345-8. [DOI: 10.1002/cphc.201000298] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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