1
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Gomez GE, Hamer M, Regiart MD, Tortella GR, Seabra AB, Soler Illia GJAA, Fernández-Baldo MA. Advances in Nanomaterials and Composites Based on Mesoporous Materials as Antimicrobial Agents: Relevant Applications in Human Health. Antibiotics (Basel) 2024; 13:173. [PMID: 38391559 PMCID: PMC10885969 DOI: 10.3390/antibiotics13020173] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2023] [Revised: 02/05/2024] [Accepted: 02/07/2024] [Indexed: 02/24/2024] Open
Abstract
Nanotechnology has emerged as a cornerstone in contemporary research, marked by the advent of advanced technologies aimed at nanoengineering materials with diverse applications, particularly to address challenges in human health. Among these challenges, antimicrobial resistance (AMR) has risen as a significant and pressing threat to public health, creating obstacles in preventing and treating persistent diseases. Despite efforts in recent decades to combat AMR, global trends indicate an ongoing and concerning increase in AMR. The primary contributors to the escalation of AMR are the misuse and overuse of various antimicrobial agents in healthcare settings. This has led to severe consequences not only in terms of compromised treatment outcomes but also in terms of substantial financial burdens. The economic impact of AMR is reflected in skyrocketing healthcare costs attributed to heightened hospital admissions and increased drug usage. To address this critical issue, it is imperative to implement effective strategies for antimicrobial therapies. This comprehensive review will explore the latest scientific breakthroughs within the metal-organic frameworks and the use of mesoporous metallic oxide derivates as antimicrobial agents. We will explore their biomedical applications in human health, shedding light on promising avenues for combating AMR. Finally, we will conclude the current state of research and offer perspectives on the future development of these nanomaterials in the ongoing battle against AMR.
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Affiliation(s)
- Germán E Gomez
- Instituto de Investigaciones en Tecnología Química (INTEQUI), Departamento de Química, Universidad Nacional de San Luis (UNSL), CONICET, Ejército de los Andes 950, San Luis D5700BWS, Argentina
| | - Mariana Hamer
- Instituto de Ciencias, Universidad Nacional de General Sarmiento-CONICET, Juan María Gutiérrez 1150, Los Polvorines CP1613, Argentina
| | - Matías D Regiart
- Instituto de Química San Luis (INQUISAL), Departamento de Química, Universidad Nacional de San Luis (UNSL), CONICET, Chacabuco 917, San Luis D5700BWS, Argentina
| | - Gonzalo R Tortella
- Centro de Excelencia en Investigación Biotecnológica Aplicada al Medio Ambiente (CIBAMA), Facultad de Ingeniería y Ciencias, Universidad de La Frontera, Av. Francisco Salazar 01145, Temuco 4811230, Chile
- Departamento de Ingeniería Química, Facultad de Ingeniería y Ciencias, Universidad de La Frontera, Av. Francisco Salazar 01145, Temuco 4811230, Chile
| | - Amedea B Seabra
- Center for Natural and Human Sciences, Federal University of ABC (UFABC), Avenida dos Estados, Saint Andrew 09210-580, Brazil
| | - Galo J A A Soler Illia
- Instituto de Nanosistemas, Escuela de Bio y Nanotecnología, Universidad Nacional de General San Martín-CONICET, Av. 25 de mayo 1169, San Martín B1650KNA, Argentina
| | - Martín A Fernández-Baldo
- Instituto de Química San Luis (INQUISAL), Departamento de Química, Universidad Nacional de San Luis (UNSL), CONICET, Chacabuco 917, San Luis D5700BWS, Argentina
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2
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Florencia Tebele M, Paris G, Zelcer A. Plasmonic inhibition of bacterial adhesion on gold-decorated mesoporous zirconium oxide thin films. Colloids Surf B Biointerfaces 2023; 232:113576. [PMID: 37862951 DOI: 10.1016/j.colsurfb.2023.113576] [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: 05/29/2023] [Revised: 08/22/2023] [Accepted: 09/30/2023] [Indexed: 10/22/2023]
Abstract
Preventing bacterial development on surfaces is essential to avoid problems caused by biofouling. Surfaces decorated with gold nanoparticles have been shown to thermally kill bacteria under high-intensity NIR illumination. In this study, we evaluated the colonization by E. coli of nanostructured surfaces composed of mesoporous zirconia thin films, both with and without gold nanoparticles embedded into the pores. We studied the effect of the nanostructure and of low intensity visible light excitation of the gold nanoparticles on the colonization process. We found that neither the zirconia, nor the presence of pores, or even gold nanoparticles affect bacterial adhesion compared to the bare glass substrate. Therefore, mesoporous zirconia thin films are biologically inert scaffolds that enable the construction of robust surfaces containing functional nanoparticles that can affect bacterial growth. When the gold containing surfaces are irradiated with light, bacterial adhesion shows a remarkable 96 ± 4% reduction. Our studies revealed that these surfaces affect early colonization steps, prior to biofilm formation, preventing bacterial adhesion without affecting its viability. In contrast to related systems where plasmonic excitation induces membrane damage due to strong local heating, the membrane integrity is preserved, showing that these surfaces have a different working principle.
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Affiliation(s)
- M Florencia Tebele
- CIBION-CONICET, Godoy Cruz 2390, C1425FQD Ciudad de Buenos Aires, Argentina.
| | - Gastón Paris
- CIBION-CONICET, Godoy Cruz 2390, C1425FQD Ciudad de Buenos Aires, Argentina
| | - Andrés Zelcer
- CIBION-CONICET, Godoy Cruz 2390, C1425FQD Ciudad de Buenos Aires, Argentina.
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3
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Scala-Benuzzi M, Fernández SN, Giménez G, Ybarra G, Soler-Illia GJAA. Ordered Mesoporous Electrodes for Sensing Applications. ACS OMEGA 2023; 8:24128-24152. [PMID: 37457464 PMCID: PMC10339336 DOI: 10.1021/acsomega.3c02013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/25/2023] [Accepted: 06/09/2023] [Indexed: 07/18/2023]
Abstract
Electrochemical sensors have become increasingly relevant in fields such as medicine, environmental monitoring, and industrial process control. Selectivity, specificity, sensitivity, signal reproducibility, and robustness are among the most important challenges for their development, especially when the target compound is present in low concentrations or in complex analytical matrices. In this context, electrode modification with Mesoporous Thin Films (MTFs) has aroused great interest in the past years. MTFs present high surface area, uniform pore distribution, and tunable pore size. Furthermore, they offer a wide variety of electrochemical signal modulation possibilities through molecular sieving, electrostatic or steric exclusion, and preconcentration effects which are due to mesopore confinement and surface functionalization. In order to fully exploit these advantages, it is central to develop reproducible routes for sensitive, selective, and robust MTF-modified electrodes. In addition, it is necessary to understand the complex mass and charge transport processes that take place through the film (particularly in the mesopores, pore surfaces, and interfaces) and on the electrode in order to design future intelligent and adaptive sensors. We present here an overview of MTFs applied to electrochemical sensing, in which we address their fabrication methods and the transport processes that are critical to the electrode response. We also summarize the current applications in biosensing and electroanalysis, as well as the challenges and opportunities brought by integrating MTF synthesis with electrode microfabrication, which is critical when moving from laboratory work to in situ sensing in the field of interest.
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Affiliation(s)
- María
L. Scala-Benuzzi
- INTI-Micro
y Nanotecnologías, Instituto Nacional
de Tecnología Industrial, Av. Gral. Paz 5445, 1560 San Martín, Buenos
Aires, Argentina
- Instituto
de Nanosistemas, Escuela de Bio y Nanotecnologías, UNSAM-CONICET, Av. 25 de Mayo 1169, 1650 San Martín, Provincia de Buenos Aires, Argentina
| | - Sol N. Fernández
- INTI-Micro
y Nanotecnologías, Instituto Nacional
de Tecnología Industrial, Av. Gral. Paz 5445, 1560 San Martín, Buenos
Aires, Argentina
- Instituto
de Nanosistemas, Escuela de Bio y Nanotecnologías, UNSAM-CONICET, Av. 25 de Mayo 1169, 1650 San Martín, Provincia de Buenos Aires, Argentina
- Instituto
de Calidad Industrial (INCALIN-UNSAM), Av. 25 de Mayo y Francia, 1650 San Martín, Provincia
de Buenos Aires Argentina
| | - Gustavo Giménez
- INTI-Micro
y Nanotecnologías, Instituto Nacional
de Tecnología Industrial, Av. Gral. Paz 5445, 1560 San Martín, Buenos
Aires, Argentina
| | - Gabriel Ybarra
- INTI-Micro
y Nanotecnologías, Instituto Nacional
de Tecnología Industrial, Av. Gral. Paz 5445, 1560 San Martín, Buenos
Aires, Argentina
| | - Galo J. A. A. Soler-Illia
- Instituto
de Nanosistemas, Escuela de Bio y Nanotecnologías, UNSAM-CONICET, Av. 25 de Mayo 1169, 1650 San Martín, Provincia de Buenos Aires, Argentina
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4
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De Santis J, Paolucci V, Stagi L, Carboni D, Malfatti L, Cantalini C, Innocenzi P. Bidimensional SnSe 2-Mesoporous Ordered Titania Heterostructures for Photocatalytically Activated Anti-Fingerprint Optically Transparent Layers. NANOMATERIALS (BASEL, SWITZERLAND) 2023; 13:1406. [PMID: 37110990 PMCID: PMC10143690 DOI: 10.3390/nano13081406] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/30/2023] [Revised: 04/14/2023] [Accepted: 04/17/2023] [Indexed: 06/19/2023]
Abstract
The design of functional coatings for touchscreens and haptic interfaces is of paramount importance for smartphones, tablets, and computers. Among the functional properties, the ability to suppress or eliminate fingerprints from specific surfaces is one of the most critical. We produced photoactivated anti-fingerprint coatings by embedding 2D-SnSe2 nanoflakes in ordered mesoporous titania thin films. The SnSe2 nanostructures were produced by solvent-assisted sonication employing 1-Methyl-2-pyrrolidinone. The combination of SnSe2 and nanocrystalline anatase titania enables the formation of photoactivated heterostructures with an enhanced ability to remove fingerprints from their surface. These results were achieved through careful design of the heterostructure and controlled processing of the films by liquid phase deposition. The self-assembly process is unaffected by the addition of SnSe2, and the titania mesoporous films keep their three-dimensional pore organization. The coating layers show high optical transparency and a homogeneous distribution of SnSe2 within the matrix. An evaluation of photocatalytic activity was performed by observing the degradation of stearic acid and Rhodamine B layers deposited on the photoactive films as a function of radiation exposure time. FTIR and UV-Vis spectroscopies were used for the photodegradation tests. Additionally, infrared imaging was employed to assess the anti-fingerprinting property. The photodegradation process, following pseudo-first-order kinetics, shows a tremendous improvement over bare mesoporous titania films. Furthermore, exposure of the films to sunlight and UV light completely removes the fingerprints, opening the route to several self-cleaning applications.
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Affiliation(s)
- Jessica De Santis
- Department of Industrial and Information Engineering and Economics, 67100 L’Aquila, Italy; (J.D.S.); (V.P.)
- National Interuniversity Consortium of Materials Science and Technology (INSTM), 50121 Florence, Italy; (D.C.); (L.M.)
| | - Valentina Paolucci
- Department of Industrial and Information Engineering and Economics, 67100 L’Aquila, Italy; (J.D.S.); (V.P.)
- National Interuniversity Consortium of Materials Science and Technology (INSTM), 50121 Florence, Italy; (D.C.); (L.M.)
| | - Luigi Stagi
- Laboratory of Materials Science and Nanotechnology (LMNT), Department of Biomedical Sciences, CR-INSTM, University of Sassari, 07100 Sassari, Italy;
| | - Davide Carboni
- National Interuniversity Consortium of Materials Science and Technology (INSTM), 50121 Florence, Italy; (D.C.); (L.M.)
- Laboratory of Materials Science and Nanotechnology (LMNT), Department of Biomedical Sciences, CR-INSTM, University of Sassari, 07100 Sassari, Italy;
| | - Luca Malfatti
- National Interuniversity Consortium of Materials Science and Technology (INSTM), 50121 Florence, Italy; (D.C.); (L.M.)
- Laboratory of Materials Science and Nanotechnology (LMNT), Department of Biomedical Sciences, CR-INSTM, University of Sassari, 07100 Sassari, Italy;
| | - Carlo Cantalini
- Department of Industrial and Information Engineering and Economics, 67100 L’Aquila, Italy; (J.D.S.); (V.P.)
- National Interuniversity Consortium of Materials Science and Technology (INSTM), 50121 Florence, Italy; (D.C.); (L.M.)
| | - Plinio Innocenzi
- National Interuniversity Consortium of Materials Science and Technology (INSTM), 50121 Florence, Italy; (D.C.); (L.M.)
- Laboratory of Materials Science and Nanotechnology (LMNT), Department of Biomedical Sciences, CR-INSTM, University of Sassari, 07100 Sassari, Italy;
- Department of Chemistry, College of Science, United Arab Emirates University, Al Ain 15551, United Arab Emirates
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5
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Cardozo de Oliveira E, Xiang C, Esmann M, Lopez Abdala N, Fuertes M, Bruchhausen A, Pastoriza H, Perrin B, Soler-Illia G, Lanzillotti-Kimura N. Probing gigahertz coherent acoustic phonons in TiO 2 mesoporous thin films. PHOTOACOUSTICS 2023; 30:100472. [PMID: 36950519 PMCID: PMC10026033 DOI: 10.1016/j.pacs.2023.100472] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/19/2022] [Revised: 02/28/2023] [Accepted: 03/01/2023] [Indexed: 06/18/2023]
Abstract
Ultrahigh-frequency acoustic-phonon resonators usually require atomically flat interfaces to avoid phonon scattering and dephasing, leading to expensive fabrication processes, such as molecular beam epitaxy. Mesoporous thin films are based on inexpensive wet chemical fabrication techniques that lead to relatively flat interfaces regardless the presence of nanopores. Here, we report mesoporous titanium dioxide-based acoustic resonators with resonances up to 90 GHz, and quality factors from 3 to 7. Numerical simulations show a good agreement with the picosecond ultrasonics experiments. We also numerically study the effect of changes in the speed of sound on the performance of the resonator. This change could be induced by liquid infiltration into the mesopores. Our findings constitute the first step towards the engineering of building blocks based on mesoporous thin films for reconfigurable optoacoustic sensors.
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Affiliation(s)
- E.R. Cardozo de Oliveira
- Université Paris-Saclay, CNRS, Centre de Nanosciences et de Nanotechnologies, 91120 Palaiseau, France
| | - C. Xiang
- Université Paris-Saclay, CNRS, Centre de Nanosciences et de Nanotechnologies, 91120 Palaiseau, France
| | - M. Esmann
- Université Paris-Saclay, CNRS, Centre de Nanosciences et de Nanotechnologies, 91120 Palaiseau, France
- Institute for Physics, Carl von Ossietzky University of Oldenburg, 26129 Oldenburg, Germany
| | - N. Lopez Abdala
- Instituto de Nanosistemas, Escuela de Bio y Nanotecnologías, Universidad Nacional de San Martín-CONICET, Buenos Aires, Argentina
| | - M.C. Fuertes
- Gerencia Química, Inst. de Nanociencia y Nanotecnología, CNEA-CONICET, Buenos Aires, Argentina
| | - A. Bruchhausen
- Centro Atómico Bariloche, Inst. de Nanociencia y Nanotecnología, CNEA-CONICET, Rio Negro, Argentina
| | - H. Pastoriza
- Centro Atómico Bariloche, Inst. de Nanociencia y Nanotecnología, CNEA-CONICET, Rio Negro, Argentina
| | - B. Perrin
- Sorbonne Université, CNRS, Institut des NanoSciences de Paris, INSP, F-75005 Paris, France
| | - G.J.A.A. Soler-Illia
- Instituto de Nanosistemas, Escuela de Bio y Nanotecnologías, Universidad Nacional de San Martín-CONICET, Buenos Aires, Argentina
| | - N.D. Lanzillotti-Kimura
- Université Paris-Saclay, CNRS, Centre de Nanosciences et de Nanotechnologies, 91120 Palaiseau, France
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6
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Roach L, Hereu A, Lalanne P, Duguet E, Tréguer-Delapierre M, Vynck K, Drisko GL. Controlling disorder in self-assembled colloidal monolayers via evaporative processes. NANOSCALE 2022; 14:3324-3345. [PMID: 35174843 PMCID: PMC8900142 DOI: 10.1039/d1nr07814c] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/26/2021] [Accepted: 01/12/2022] [Indexed: 04/14/2023]
Abstract
Monolayers of assembled nano-objects with a controlled degree of disorder hold interest in many optical applications, including photovoltaics, light emission, sensing, and structural coloration. Controlled disorder can be achieved through either top-down or bottom-up approaches, but the latter is more suited to large-scale, low-cost fabrication. Disordered colloidal monolayers can be assembled through evaporatively driven convective assembly, a bottom-up process with a wide range of parameters impacting particle placement. Motivated by the photonic applications of such monolayers, in this review we discuss the quantification of monolayer disorder, and the assembly methods that have been used to produce them. We review the impact of particle and solvent properties, as well as the use of substrate patterning, to create the desired spatial distributions of particles.
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Affiliation(s)
- Lucien Roach
- CNRS, Univ. Bordeaux, Bordeaux INP, ICMCB, UMR 5026, F-33600 Pessac, France.
| | - Adrian Hereu
- CNRS, Univ. Bordeaux, Bordeaux INP, ICMCB, UMR 5026, F-33600 Pessac, France.
| | - Philippe Lalanne
- IOGS, Univ. Bordeaux, CNRS, LP2N, UMR 5298, F-33400 Talence, France
| | - Etienne Duguet
- CNRS, Univ. Bordeaux, Bordeaux INP, ICMCB, UMR 5026, F-33600 Pessac, France.
| | | | - Kevin Vynck
- Univ. Claude Bernard Lyon 1, CNRS, iLM, UMR 5306, F-69622 Villeurbanne, France.
| | - Glenna L Drisko
- CNRS, Univ. Bordeaux, Bordeaux INP, ICMCB, UMR 5026, F-33600 Pessac, France.
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Fernanda Torresan M, Morrone J, Sorbello C, Etchenique R, Angelomé PC, Wolosiuk A. Emissive Platforms Employing NaYF
4
‐based Upconverting Nanoparticles and Mesoporous Metal Oxide Thin Films. Eur J Inorg Chem 2021. [DOI: 10.1002/ejic.202100177] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- M. Fernanda Torresan
- Gerencia Química & Instituto de Nanociencia y Nanotecnología, Centro Atómico Constituyentes Comisión Nacional de Energía Atómica, CONICET Av. Gral. Paz 1499 B1650KNA San Martín Buenos Aires Argentina
- DQIAyQF – INQUIMAE – CONICET Facultad de Ciencias Exactas y Naturales Universidad de Buenos Aires Pabellón 2, Ciudad Universitaria 1428 Buenos Aires Argentina
| | - Josefina Morrone
- Gerencia Química & Instituto de Nanociencia y Nanotecnología, Centro Atómico Constituyentes Comisión Nacional de Energía Atómica, CONICET Av. Gral. Paz 1499 B1650KNA San Martín Buenos Aires Argentina
| | - Cecilia Sorbello
- DQIAyQF – INQUIMAE – CONICET Facultad de Ciencias Exactas y Naturales Universidad de Buenos Aires Pabellón 2, Ciudad Universitaria 1428 Buenos Aires Argentina
| | - Roberto Etchenique
- DQIAyQF – INQUIMAE – CONICET Facultad de Ciencias Exactas y Naturales Universidad de Buenos Aires Pabellón 2, Ciudad Universitaria 1428 Buenos Aires Argentina
| | - Paula C. Angelomé
- Gerencia Química & Instituto de Nanociencia y Nanotecnología, Centro Atómico Constituyentes Comisión Nacional de Energía Atómica, CONICET Av. Gral. Paz 1499 B1650KNA San Martín Buenos Aires Argentina
| | - Alejandro Wolosiuk
- Gerencia Química & Instituto de Nanociencia y Nanotecnología, Centro Atómico Constituyentes Comisión Nacional de Energía Atómica, CONICET Av. Gral. Paz 1499 B1650KNA San Martín Buenos Aires Argentina
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8
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Sartori B, Amenitsch H, Marmiroli B. Functionalized Mesoporous Thin Films for Biotechnology. MICROMACHINES 2021; 12:740. [PMID: 34202530 PMCID: PMC8304103 DOI: 10.3390/mi12070740] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/02/2021] [Revised: 06/17/2021] [Accepted: 06/21/2021] [Indexed: 12/23/2022]
Abstract
Mesoporous materials bear great potential for biotechnological applications due to their biocompatibility and versatility. Their high surface area and pore interconnection allow the immobilization of molecules and their subsequent controlled delivery. Modifications of the mesoporous material with the addition of different chemical species, make them particularly suitable for the production of bioactive coatings. Functionalized thin films of mesoporous silica and titania can be used as scaffolds with properties as diverse as promotion of cell growth, inhibition of biofilms formation, or development of sensors based on immobilized enzymes. The possibility to pattern them increase their appeal as they can be incorporated into devices and can be tailored both with respect to architecture and functionalization. In fact, selective surface manipulation is the ground for the fabrication of advanced micro devices that combine standard micro/nanofluids with functional materials. In this review, we will present the advantages of the functionalization of silica and titania mesoporous materials deposited in thin film. Different functional groups used to modify their properties will be summarized, as well as functionalization methods and some examples of applications of modified materials, thus giving an overview of the essential role of functionalization to improve the performance of such innovative materials.
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Affiliation(s)
| | | | - Benedetta Marmiroli
- Institute of Inorganic Chemistry, Graz University of Technology, 8010 Graz, Austria; (B.S.); (H.A.)
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9
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Tang Q, Müller M. Evaporation-Induced Liquid Expansion and Bubble Formation in Binary Mixtures. PHYSICAL REVIEW LETTERS 2021; 126:028003. [PMID: 33512230 DOI: 10.1103/physrevlett.126.028003] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/13/2020] [Accepted: 12/18/2020] [Indexed: 06/12/2023]
Abstract
We observe an anomalous liquid expansion after quenching a binary mixture at coexistence to low pressures in the vapor phase by numerical calculations. This evaporation-induced expansion can be attributed to the pressure imbalance near the liquid-vapor interface, which originates from the interplay between the complex thermodynamics of binary mixtures both in the vapor and liquid phases, as well as their dynamical asymmetries. In addition, careful modulation of the pressure quench in the vapor phase can result in spinodal bubble formation inside liquid phase. The results indicate that the thermodynamics-kinetics interplay could foster our fundamental understanding of the evaporation process and promote its practical applications.
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Affiliation(s)
- Qiyun Tang
- Institut für Theoretische Physik, Universität Göttingen, Friedrich-Hund-Platz 1, 37077 Göttingen, Germany
| | - Marcus Müller
- Institut für Theoretische Physik, Universität Göttingen, Friedrich-Hund-Platz 1, 37077 Göttingen, Germany
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10
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Caraballo RM, Vensaus P, Herrera FC, Soler Illia GJAA, Hamer M. Zinc porphyrin/mesoporous titania thin film electrodes: a hybrid material nanoarchitecture for photocatalytic reduction. RSC Adv 2021; 11:31124-31130. [PMID: 35498941 PMCID: PMC9041319 DOI: 10.1039/d1ra06585h] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2021] [Accepted: 09/10/2021] [Indexed: 11/21/2022] Open
Abstract
In this work, photocatalytic reduction of methyl viologen is achieved using zinc tetra(4-N-methylpyridyl)porphine (ZnP) functionalized mesoporous titania thin films (MTTF). Also, ZnP sensitizing and photophysical properties are retained in the hybrid material.
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Affiliation(s)
- Rolando M. Caraballo
- Instituto de Nanosistemas, Universidad Nacional de General San Martín-CONICET, Av. 25 de Mayo 1021 (B1650KNA), San Martín, Argentina
| | - Priscila Vensaus
- Instituto de Nanosistemas, Universidad Nacional de General San Martín-CONICET, Av. 25 de Mayo 1021 (B1650KNA), San Martín, Argentina
| | - Facundo C. Herrera
- Instituto de Nanosistemas, Universidad Nacional de General San Martín-CONICET, Av. 25 de Mayo 1021 (B1650KNA), San Martín, Argentina
| | - Galo J. A. A. Soler Illia
- Instituto de Nanosistemas, Universidad Nacional de General San Martín-CONICET, Av. 25 de Mayo 1021 (B1650KNA), San Martín, Argentina
| | - Mariana Hamer
- Instituto de Nanosistemas, Universidad Nacional de General San Martín-CONICET, Av. 25 de Mayo 1021 (B1650KNA), San Martín, Argentina
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12
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Tran T, Zheng W, Tsilomelekis G. Molten Salt Hydrates in the Synthesis of TiO 2 Flakes. ACS OMEGA 2019; 4:21302-21310. [PMID: 31867524 PMCID: PMC6921680 DOI: 10.1021/acsomega.9b02850] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/03/2019] [Accepted: 11/18/2019] [Indexed: 06/10/2023]
Abstract
Herein, we present a method for the preparation of titanium dioxide with a relatively large surface area, mesoporosity, and good thermal stability. We show that by utilizing molten salt hydrates (MSH) as non-trivial synthesis media, we prepare materials with thin, flake-like morphology with a large aspect ratio. The thickness of the synthesized flakes can be controlled by adjusting the salt/water (always in the MSH regime) and/or the salt/precursor molar ratio. The TiO2 flakes appear to be formed via the aggregation of small TiO2 nanoparticles (typically around 7-8 nm) in an apparent 2D morphology. We hypothesize that the ordered structure of water molecules within the ions of the salt in conjunction with the fast hydrolysis/condensation rates occurring in the presence of water of the precursor used are responsible for this agglomeration. We also report that the purity of materials (anatase vs brookite crystalline phase) appears to be a function of the LiBr/water ratio which is hypothesized to arise either from pH variation or due to lattice matching of the relevant orthorhombic structures (brookite and LiBr x ·3H2O). Discussion on the potential for scalability of the presented method is also highlighted in this article.
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Affiliation(s)
- Trang
Q. Tran
- Department
of Chemical and Biochemical Engineering, Rutgers, The State University of New Jersey, Piscataway, New Jersey 08854, United States
| | - Weiqing Zheng
- Catalysis
Center for Energy Innovation and Department of Chemical and Biomolecular
Engineering, University of Delaware, Newark, Delaware 19716, United States
| | - George Tsilomelekis
- Department
of Chemical and Biochemical Engineering, Rutgers, The State University of New Jersey, Piscataway, New Jersey 08854, United States
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13
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14
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Steinberg PY, Zalduendo MM, Giménez G, Soler-Illia GJAA, Angelomé PC. TiO 2 mesoporous thin film architecture as a tool to control Au nanoparticles growth and sensing capabilities. Phys Chem Chem Phys 2019; 21:10347-10356. [PMID: 31073574 DOI: 10.1039/c9cp01896d] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
In this paper, a systematic study regarding the effect of the mesoporous structure over Au nanoparticles (NPs) growth inside and through the pores of mesoporous TiO2 thin films (MTTFs) is presented, and the effect of such characteristics over the composites' sensing capabilities is evaluated. Highly stable MTTFs with different pore diameters (range: 4-8 nm) and pore arrangements (body- and face-centered cubic) were synthesized and characterized. Au NPs were grown inside the pores, and it was demonstrated-through a careful physicochemical characterization-that the amount of incorporated Au and NP size depends on the pore array; being higher for bigger pore diameters and face-centered cubic structures. The same structure allows the growth of more and longer tips over Au NPs deposited at the thin film-substrate interface. Finally, to confirm the effect of the structural characteristics of the composites over their possible applications, the materials were tested as surface-enhanced Raman scattering (SERS)-based substrates. The composites with a higher amount of Au and more ramified NPs were the ones that presented better sensitivity in the detection of a probe molecule (4-nitrothiophenol). Overall, this work demonstrates that the pore size and ordering in MTTFs determine the materials' accessibility and connectivity, and therefore, have a clear impact on their potential applications.
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Affiliation(s)
- Paula Y Steinberg
- Gerencia Química & INN, Centro Atómico Constituyentes, Comisión Nacional de Energía Atómica, CONICET, Av. Gral. Paz 1499, B1650KNA San Martín, Buenos Aires, Argentina.
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15
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Alberti S, Steinberg PY, Giménez G, Amenitsch H, Ybarra G, Azzaroni O, Angelomé PC, Soler-Illia GJAA. Chemical Stability of Mesoporous Oxide Thin Film Electrodes under Electrochemical Cycling: from Dissolution to Stabilization. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2019; 35:6279-6287. [PMID: 30990724 DOI: 10.1021/acs.langmuir.9b00224] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/04/2023]
Abstract
Mesoporous oxide thin films (MOTF) present very high surface areas and highly controlled monodisperse pores in the nanometer range. These features spurred their possible applications in separation membranes and permselective electrodes. However, their performance in real applications is limited by their reactivity. Here, we perform a basic study of the stability of MOTF toward dissolution in aqueous media using a variety of characterization techniques. In particular, we focus in their stability behavior under the influence of ionic strength, adsorption of electrochemical probes, and applied electrode potential. Mesoporous silica thin films present a limited chemical stability after electrochemical cycling, particularly under high ionic strength, due to their high specific surface area and the interactions between the electrochemical probes and the surface. In contrast, TiO2 or Si0.9Zr0.1O2 matrices present higher stability; thus, they are an adequate alternative to produce accessible, sensitive, and robust permselective electrodes or membranes that perform under a wide variety of conditions.
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Affiliation(s)
- Sebastián Alberti
- Gerencia Química - Centro Atómico Constituyentes , Comisión Nacional de Energía Atómica, CONICET , Avenida General Paz 1499 , 1650 San Martín , Buenos Aires , Argentina
- Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas (INIFTA) - Universidad Nacional de La Plata - CONICET , CC 16 Suc. 4 , 1900 La Plata , Buenos Aires , Argentina
| | - Paula Y Steinberg
- Gerencia Química - Centro Atómico Constituyentes , Comisión Nacional de Energía Atómica, CONICET , Avenida General Paz 1499 , 1650 San Martín , Buenos Aires , Argentina
| | - Gustavo Giménez
- Centro de Micro y Nanoelectrónica del Bicentenario , INTI-CMNB, Instituto Nacional de Tecnología Industrial , Avenida General Paz 5445 , B1650WAB San Martín , Buenos Aires , Argentina
| | - Heinz Amenitsch
- Institute for Inorganic Chemistry , Graz University of Technology , Stremayrgasse 9/IV , 8010 Graz , Austria
| | - Gabriel Ybarra
- Unidad Técnica Nanomateriales, INTI-Procesos Superficiales , Instituto Nacional de Tecnología Industrial , Avenida General Paz 5445 , B1650WAB San Martín , Buenos Aires , Argentina
| | - Omar Azzaroni
- Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas (INIFTA) - Universidad Nacional de La Plata - CONICET , CC 16 Suc. 4 , 1900 La Plata , Buenos Aires , Argentina
| | - Paula C Angelomé
- Gerencia Química - Centro Atómico Constituyentes , Comisión Nacional de Energía Atómica, CONICET , Avenida General Paz 1499 , 1650 San Martín , Buenos Aires , Argentina
| | - Galo J A A Soler-Illia
- Instituto de Nanosistemas , UNSAM, CONICET , Avenida 25 de Mayo 1021 , 1650 San Martín , Buenos Aires , Argentina
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16
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Mbiri A, Taffa DH, Gatebe E, Wark M. Zirconium doped mesoporous TiO2 multilayer thin films: Influence of the zirconium content on the photodegradation of organic pollutants. Catal Today 2019. [DOI: 10.1016/j.cattod.2019.01.043] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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17
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López-Álvarez M, López-Puente V, Rodríguez-Valencia C, Angelomé PC, Liz-Marzán LM, Serra J, Pastoriza-Santos I, González P. Osteogenic effects of simvastatin-loaded mesoporous titania thin films. Biomed Mater 2018; 13:025017. [DOI: 10.1088/1748-605x/aa95f1] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
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18
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Bottein T, Dalstein O, Putero M, Cattoni A, Faustini M, Abbarchi M, Grosso D. Environment-controlled sol-gel soft-NIL processing for optimized titania, alumina, silica and yttria-zirconia imprinting at sub-micron dimensions. NANOSCALE 2018; 10:1420-1431. [PMID: 29302657 DOI: 10.1039/c7nr07491c] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Metal oxide (MOX) surface nanopatterns can be prepared using Soft-Nano-Imprint-Lithography (soft-NIL) combined with sol-gel deposition processing. Even if sol-gel layers remain gel-like straight after deposition, their accurate replication from a mould remains difficult as a result of the fast evaporation-induced stiffening that prevents efficient mass transfer underneath the soft mould. The present work reports a detailed investigation of the role of the xerogel layer conditioning (temperature and relative humidity) prior to imprinting and its influence on the quality of the replication. This study is performed on four different systems namely titania, alumina, silica and yttria-stabilised zirconia. We demonstrate that the quality of the replica can be considerably improved without the use of sacrificial stabilising organic agents, but by simply applying an optimal aging at controlled temperature and relative humidity specific to each different reported MOX. In each case this condition corresponds to swelling the initial xerogels of around 30%vol by water absorption from humidity. We show that this degree of swelling represents the best compromise for sufficiently increasing the xerogel fluidity while limiting the shrinkage upon final thermal curing.
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Affiliation(s)
- Thomas Bottein
- NOVA Team, Institut Matériaux Microélectronique et Nanosciences de Provence, (IM2NP) - UMR CNRS 7334, Aix-Marseille Université, Faculté des Sciences de Saint Jérôme, 13397 Marseille Cedex 20, France.
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19
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Marco-Brown JL, Blesa MA, Soler-Illia G. Preparation of mesoporous titania xerogels under controlled synthesis conditions. Effects of processing in the textural, adsorption and photocatalytic properties. Colloids Surf A Physicochem Eng Asp 2017. [DOI: 10.1016/j.colsurfa.2017.07.054] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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20
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Escobar A, Yate L, Grzelczak M, Amenitsch H, Moya SE, Bordoni AV, Angelomé PC. One-Step Synthesis of Mesoporous Silica Thin Films Containing Available COOH Groups. ACS OMEGA 2017; 2:4548-4555. [PMID: 31457747 PMCID: PMC6641613 DOI: 10.1021/acsomega.7b00560] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/05/2017] [Accepted: 06/29/2017] [Indexed: 05/10/2023]
Abstract
Inorganic-organic hybrid mesoporous silica thin films with covalently bonded carboxylic acid groups were synthesized in a one-step procedure, using carboxylic-derivatized alkoxysilanes obtained by photochemical radical thiol-ene addition (PRTEA). The organosilanes were synthesized by clicking mercaptosuccinic or mercaptoacetic thioacids with vinyltrimethoxysilane, using benzophenone as the photoradical initiator. The films were synthesized by evaporation-induced self-assembly of a sol containing a mixture of tetraethoxysilane and different quantities of the organosilanes, without any further treatment after the PRTEA reaction. Two nonionic surfactants were used as templates to produce different pore sizes. Different aging times were also applied. Structural characterization with electron microscopy, porosimetry measurements, and small angle X-ray scattering with two-dimensional detection demonstrated the obtention of mesoporous phases whose degree of ordering depended on the amount of added organosilane. The incorporation of the functional silanes was shown by X-ray photoelectron spectroscopy, and the presence of the COOH groups was confirmed by Fourier transform infrared (FTIR). Finally, the availability of the COOH groups for further chemical modification was demonstrated by FTIR by following the changes in the typical carbonyl IR bands during proton exchange and metal complexation. The proposed simple methodology allows obtaining COOH-modified silica thin films in one step, without the need of hard reaction conditions or deprotection steps. Functionalization with carboxyl groups brings a pH-dependent switch-ability to the pore surface that can be used for multifunctional mesoporous materials design.
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Affiliation(s)
- Ane Escobar
- CIC
biomaGUNE, Paseo de Miramón
182, 20014 Donostia-San
Sebastián, Spain
| | - Luis Yate
- CIC
biomaGUNE, Paseo de Miramón
182, 20014 Donostia-San
Sebastián, Spain
| | - Marek Grzelczak
- CIC
biomaGUNE, Paseo de Miramón
182, 20014 Donostia-San
Sebastián, Spain
- Ikerbasque,
Basque Foundation for Science, 48013 Bilbao, Spain
| | - Heinz Amenitsch
- Institute
for Inorganic Chemistry, Graz University
of Technology, Stremayergasse 9/IV, 8010 Graz, Austria
| | - Sergio E. Moya
- CIC
biomaGUNE, Paseo de Miramón
182, 20014 Donostia-San
Sebastián, Spain
| | - Andrea V. Bordoni
- Gerencia
Química − Centro Atómico Constituyentes, Comisión Nacional de Energía Atómica,
CONICET, Avenida General Paz 1499, B1650KNA San Martín, Buenos Aires, Argentina
- E-mail: (A.V.B.)
| | - Paula C. Angelomé
- Gerencia
Química − Centro Atómico Constituyentes, Comisión Nacional de Energía Atómica,
CONICET, Avenida General Paz 1499, B1650KNA San Martín, Buenos Aires, Argentina
- E-mail: (P.C.A.)
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21
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Mercuri M, Pierpauli KA, Berli CLA, Bellino MG. An Open Pit Nanofluidic Tool: Localized Chemistry Assisted by Mesoporous Thin Film Infiltration. ACS APPLIED MATERIALS & INTERFACES 2017; 9:16679-16684. [PMID: 28463480 DOI: 10.1021/acsami.7b03080] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Nanofluidics based on nanoscopic porous structures has emerged as the next evolutionary milestone in the construction of versatile nanodevices with unprecedented applications. However, the straightforward development of nanofluidically interconnected systems is crucial for the production of practical devices. Here, we demonstrate that spontaneous infiltration into supramolecularly templated mesoporous oxide films at the edge of a sessile drop in open air can be used to connect pairs of landmarks. The liquids from the drops can then join through the nanoporous network to guide a localized chemical reaction at the nanofluid-front interface. This method, here named "open-pit" nanofluidics, allows mixing reagents from nanofluidically connected droplet reservoirs that can be used as reactors to conduct reactions and precipitation processes. From the fundamental point of view, the work contributes to unveiling subtle phenomena during spontaneous infiltration of fluids in bodies with nanoscale dimensions such as the front broadening effect and the oscillatory behavior of the infiltration-evaporation front. The approach has distinctive advantages such as easy fabrication, low cost, and facility of scaling up for future development of ultrasensitive detection, controlled nanomaterial synthesis, and novel patterning methods.
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Affiliation(s)
- Magalí Mercuri
- Departamento de Micro y Nanotecnología, Comisión Nacional de Energía Atómica , Av. Gral. Paz, 1499 San Martín, Buenos Aires, Argentina
| | - Karina A Pierpauli
- Departamento de Micro y Nanotecnología, Comisión Nacional de Energía Atómica , Av. Gral. Paz, 1499 San Martín, Buenos Aires, Argentina
| | - Claudio L A Berli
- INTEC (Universidad Nacional del Litoral-CONICET) Predio CCT CONICET Santa Fe , RN 168, 3000 Santa Fe, Argentina
| | - Martín G Bellino
- Departamento de Micro y Nanotecnología, Comisión Nacional de Energía Atómica , Av. Gral. Paz, 1499 San Martín, Buenos Aires, Argentina
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22
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Li R, Boudot M, Boissière C, Grosso D, Faustini M. Suppressing Structural Colors of Photocatalytic Optical Coatings on Glass: The Critical Role of SiO 2. ACS APPLIED MATERIALS & INTERFACES 2017; 9:14093-14102. [PMID: 28398035 DOI: 10.1021/acsami.7b02233] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
The appearance of structural colors on coated-glass is a critical esthetical drawback toward industrialization of photocatalytic coatings on windows for architecture or automobile. Herein we describe a rational approach to suppress the structural color of mesoporous TiO2-based coatings preserving photoactivity and mechanical stiffness. Addition of SiO2 as third component is discussed. TixSi(1-x)O2 mesoporous coatings were fabricated by one-step liquid deposition process through the evaporation induced self-assembling and characterized by GI-SAXS, GI-WAXS, electron microscopies, and in situ Environmental Ellipsometry Porosimetry. Guided by optical simulation, we investigated the critical role of SiO2 on the optical responses of the films but also on the structural, mechanical, and photocatalytic properties, important requirements to go toward real applications. We demonstrate that adding SiO2 to porous TiO2 allows tuning and suppression of structural colors through refractive index matching and up to 160% increase in mechanical stiffening of the films. This study leads us to demonstrate an example of "invisible" coating, in which the light reflection is angle- and thickness-independent, and exhibiting high porosity, mechanical stiffness, and photoactivity.
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Affiliation(s)
- Ronghua Li
- Sorbonne Universités , UPMC Univ Paris 06, CNRS, Collège de France, UMR 7574, Chimie de la Matière Condensée de Paris, F-75005 Paris, France
| | - Mickael Boudot
- Sorbonne Universités , UPMC Univ Paris 06, CNRS, Collège de France, UMR 7574, Chimie de la Matière Condensée de Paris, F-75005 Paris, France
- Institute for Materials Chemistry and Engineering, Kyushu University , 6-1 Kasuga-Koen, Kasuga, Fukuoka 816-8580, Japan
| | - Cédric Boissière
- Sorbonne Universités , UPMC Univ Paris 06, CNRS, Collège de France, UMR 7574, Chimie de la Matière Condensée de Paris, F-75005 Paris, France
| | - David Grosso
- IM2NP, Faculté des Sciences et Techniques , Campus de Saint Jérôme, Avenue Escadrille Normandie Niemen, 13397 Marseille, France
| | - Marco Faustini
- Sorbonne Universités , UPMC Univ Paris 06, CNRS, Collège de France, UMR 7574, Chimie de la Matière Condensée de Paris, F-75005 Paris, France
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23
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Mercuri M, Pierpauli K, Bellino MG, Berli CLA. Complex Filling Dynamics in Mesoporous Thin Films. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2017; 33:152-157. [PMID: 27959560 DOI: 10.1021/acs.langmuir.6b03987] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
The fluid-front dynamics resulting from the coexisting infiltration and evaporation phenomena in nanofluidic systems has been investigated. More precisely, water infiltration in both titania and silica mesoporous films was studied through a simple experiment: a sessile drop was deposited over the film and the advancement of the fluid front into the porous structure was optically followed and recorded in time. In the case of titania mesoporous films, capillary infiltration was arrested at a given distance, and a steady annular region of the wetted material was formed. A simple model that combines Lucas-Washburn infiltration and surface evaporation was derived, which appropriately describes the observed filling dynamics and the annulus width in dissimilar mesoporous morphologies. In the case of wormlike mesoporous morphologies, a remarkable phenomenon was found: instead of reaching a steady infiltration-evaporation balance, the fluid front exhibits an oscillating behavior. This complex filling dynamics opens interesting possibilities to study the unusual nanofluidic phenomena and to discover novel applications.
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Affiliation(s)
- Magalí Mercuri
- Departamento de Micro y Nanotecnología, Comisión Nacional de Energía Atómica , Avenida General Paz 1499, San Martín, B1650 Buenos Aires, Argentina
| | - Karina Pierpauli
- Departamento de Micro y Nanotecnología, Comisión Nacional de Energía Atómica , Avenida General Paz 1499, San Martín, B1650 Buenos Aires, Argentina
| | - Martín G Bellino
- Departamento de Micro y Nanotecnología, Comisión Nacional de Energía Atómica , Avenida General Paz 1499, San Martín, B1650 Buenos Aires, Argentina
| | - Claudio L A Berli
- INTEC (Universidad Nacional del Litoral-CONICET) Predio CCT CONICET Santa Fe , RN 168, S3000 Santa Fe, Argentina
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24
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Tang Q, Angelomé PC, Soler-Illia GJAA, Müller M. Formation of ordered mesostructured TiO2 thin films: a soft coarse-grained simulation study. Phys Chem Chem Phys 2017; 19:28249-28262. [DOI: 10.1039/c7cp05304e] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Abstract
Variation of the dispersity index D as water and HCl evaporate distinctly. Right panels show the snapshots of formed mesopores.
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Affiliation(s)
- Qiyun Tang
- Universität Göttingen
- Institut für Theoretische Physik
- 37077 Göttingen
- Germany
| | - Paula C. Angelomé
- Gerencia Quimica
- Centro Atomico Constituyentes
- Comision Nacional de Energia Atomica
- CONICET
- B1650KNA San Martín
| | - Galo J. A. A. Soler-Illia
- Instituto de Nanosistemas Universidad Nacional de General San Martín
- CONICET
- 1021 1650 San Martín
- Argentina
| | - Marcus Müller
- Universität Göttingen
- Institut für Theoretische Physik
- 37077 Göttingen
- Germany
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25
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Angiolini JF, Stortz M, Steinberg PY, Mocskos E, Bruno L, Soler-Illia G, Angelomé PC, Wolosiuk A, Levi V. Diffusion of single dye molecules in hydrated TiO2 mesoporous films. Phys Chem Chem Phys 2017; 19:26540-26544. [DOI: 10.1039/c7cp05186g] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
Fluorescence correlation spectroscopy (FCS) shows how the pore dimensions of thin and hydrated TiO2 mesoporous calcined films modulate the diffusion of molecules across the pore network.
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Affiliation(s)
- Juan F. Angiolini
- Universidad de Buenos Aires
- Facultad de Ciencias Exactas y Naturales
- Departamento de Química Biológica
- Argentina-CONICET – Universidad de Buenos Aires
- Instituto de Química Biológica de la Facultad de Ciencias Exactas y Naturales (IQUIBICEN)
| | - Martín Stortz
- CONICET – Universidad de Buenos Aires
- Instituto de Fisiología
- Biología Molecular y Neurociencias (IFIBYNE)
- Buenos Aires
- Argentina
| | - Paula Y. Steinberg
- Gerencia Química – Centro Atómico Constituyentes – Comisión Nacional de Energía Atómica
- CONICET
- San Martín
- Argentina
| | - Esteban Mocskos
- Universidad de Buenos Aires
- Facultad de Ciencias Exactas y Naturales
- Departamento de Computación
- Buenos Aires, Argentina-CONICET
- Centro de Simulación Computacional para Aplicaciones Tecnológicas (CSC)
| | - Luciana Bruno
- CONICET – Universidad de Buenos Aires
- Instituto de Física de Buenos Aires (IFIBA)
- Buenos Aires
- Argentina
| | - Galo Soler-Illia
- Instituto de Nanosistemas
- UNSAM, 25 de Mayo y Francia (1650)
- San Martín
- Argentina
| | - Paula C. Angelomé
- Gerencia Química – Centro Atómico Constituyentes – Comisión Nacional de Energía Atómica
- CONICET
- San Martín
- Argentina
| | - Alejandro Wolosiuk
- Gerencia Química – Centro Atómico Constituyentes – Comisión Nacional de Energía Atómica
- CONICET
- San Martín
- Argentina
- Departamento de Química Inorgánica
| | - Valeria Levi
- Universidad de Buenos Aires
- Facultad de Ciencias Exactas y Naturales
- Departamento de Química Biológica
- Argentina-CONICET – Universidad de Buenos Aires
- Instituto de Química Biológica de la Facultad de Ciencias Exactas y Naturales (IQUIBICEN)
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26
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Xuan H, Ren J, Zhu Y, Liu X, Ge L. A green method to fabricate uniform porous responsive one-dimensional photonic crystals. Colloids Surf A Physicochem Eng Asp 2016. [DOI: 10.1016/j.colsurfa.2016.07.046] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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27
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Ortel E, Hertwig A, Berger D, Esposito P, Rossi AM, Kraehnert R, Hodoroaba VD. New Approach on Quantification of Porosity of Thin Films via Electron-Excited X-ray Spectra. Anal Chem 2016; 88:7083-90. [PMID: 27334649 DOI: 10.1021/acs.analchem.6b00847] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
One of the crucial characteristics of functionalized thin films is their porosity (i.e., the ratio between the pore volume and the volume of the whole film). Due to the very low amount of material per coated area corresponding to thin films, it is a challenge for analytics to measure the film porosity. In this work, we present an approach to determine the porosity of thin films by means of electron probe microanalysis (EPMA) either by wavelength-dispersive X-ray spectrometry (WDX) or by energy-dispersive X-ray spectrometry (EDX) with a scanning electron microscope (SEM). The procedure is based on the calculation of the film mass deposition from electron-excited X-ray spectra. The mass deposition is converted into film density by division of measured film thickness. Finally, the film porosity is calculated from the measured film density and the density of bulk, nonporous film material. The general applicability of the procedure to determine the porosity is demonstrated on thin templated mesoporous TiO2 films, dip-coated on silicon wafer, with controlled porosity in the range of 15 to 50%. The high accuracy of the mass deposition as determined from X-ray spectra was validated with independent methods (ICP-OES and weighing). Furthermore, for the validation of the porosity results, ellipsometry, interference fringes method (IFM), and focused ion beam (FIB) cross sectioning were employed as independent techniques. Hence, the approach proposed in the present study is proven to be suited as a new analytical tool for accurate and relatively fast determination of the porosity of thin films.
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Affiliation(s)
- Erik Ortel
- Federal Institute for Materials Research and Testing (BAM), Berlin 12200, Germany
| | - Andreas Hertwig
- Federal Institute for Materials Research and Testing (BAM), Berlin 12200, Germany
| | - Dirk Berger
- Technische Universität Berlin, Straße des 17. Juni 135, Berlin 10623, Germany
| | - Pasquale Esposito
- Istituto Nazionale di Ricerca Metrologica, Strada delle Cacce 91, Turin 10135, Italy
| | - Andrea M Rossi
- Istituto Nazionale di Ricerca Metrologica, Strada delle Cacce 91, Turin 10135, Italy
| | - Ralph Kraehnert
- Technische Universität Berlin, Straße des 17. Juni 135, Berlin 10623, Germany
| | - Vasile-Dan Hodoroaba
- Federal Institute for Materials Research and Testing (BAM), Berlin 12200, Germany
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28
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Karlsson J, Harmankaya N, Palmquist A, Atefyekta S, Omar O, Tengvall P, Andersson M. Stem cell homing using local delivery of plerixafor and stromal derived growth factor-1alpha for improved bone regeneration around Ti-implants. J Biomed Mater Res A 2016; 104:2466-75. [DOI: 10.1002/jbm.a.35786] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2016] [Revised: 05/16/2016] [Accepted: 05/18/2016] [Indexed: 01/14/2023]
Affiliation(s)
- Johan Karlsson
- Department Of Chemistry and Chemical Engineering; Applied Chemistry, Chalmers University of Technology; Gothenburg Sweden
| | - Necati Harmankaya
- Department Of Fibre and Polymer Technology; KTH Royal Institute of Technology; Stockholm Sweden
| | - Anders Palmquist
- Department Of Biomaterials; Sahlgrenska Academy, University of Gothenburg; Gothenburg Sweden
| | - Saba Atefyekta
- Department Of Chemistry and Chemical Engineering; Applied Chemistry, Chalmers University of Technology; Gothenburg Sweden
| | - Omar Omar
- Department Of Biomaterials; Sahlgrenska Academy, University of Gothenburg; Gothenburg Sweden
| | - Pentti Tengvall
- Department Of Biomaterials; Sahlgrenska Academy, University of Gothenburg; Gothenburg Sweden
| | - Martin Andersson
- Department Of Chemistry and Chemical Engineering; Applied Chemistry, Chalmers University of Technology; Gothenburg Sweden
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29
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Jiang Y, Carboni D, Pinna A, Marmiroli B, Malfatti L, Innocenzi P. Hard X-rays for processing hybrid organic-inorganic thick films. JOURNAL OF SYNCHROTRON RADIATION 2016; 23:267-273. [PMID: 26698073 DOI: 10.1107/s1600577515018597] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/31/2015] [Accepted: 10/05/2015] [Indexed: 06/05/2023]
Abstract
Hard X-rays, deriving from a synchrotron light source, have been used as an effective tool for processing hybrid organic-inorganic films and thick coatings up to several micrometres. These coatings could be directly modified, in terms of composition and properties, by controlled exposure to X-rays. The physico-chemical properties of the coatings, such as hardness, refractive index and fluorescence, can be properly tuned using the interaction of hard X-rays with the sol-gel hybrid films. The changes in the microstructure have been correlated especially with the modification of the optical and the mechanical properties. A relationship between the degradation rate of the organic groups and the rise of fluorescence from the hybrid material has been observed; nanoindentation analysis of the coatings as a function of the X-ray doses has shown a not linear dependence between thickness and film hardness.
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Affiliation(s)
- Yu Jiang
- Laboratorio di Scienza dei Materiali e Nanotecnologie, DADU, Università di Sassari, CR-INSTM, Palazzo Pou Salit, Piazza Duomo 6, 07041 Alghero (Sassari), Italy
| | - Davide Carboni
- Laboratorio di Scienza dei Materiali e Nanotecnologie, DADU, Università di Sassari, CR-INSTM, Palazzo Pou Salit, Piazza Duomo 6, 07041 Alghero (Sassari), Italy
| | - Alessandra Pinna
- Laboratorio di Scienza dei Materiali e Nanotecnologie, DADU, Università di Sassari, CR-INSTM, Palazzo Pou Salit, Piazza Duomo 6, 07041 Alghero (Sassari), Italy
| | - Benedetta Marmiroli
- Institute of Inorganic Chemistry, Graz University of Technology, Stremayrgasse 9/IV, 8010 Graz, Austria
| | - Luca Malfatti
- Laboratorio di Scienza dei Materiali e Nanotecnologie, DADU, Università di Sassari, CR-INSTM, Palazzo Pou Salit, Piazza Duomo 6, 07041 Alghero (Sassari), Italy
| | - Plinio Innocenzi
- Laboratorio di Scienza dei Materiali e Nanotecnologie, DADU, Università di Sassari, CR-INSTM, Palazzo Pou Salit, Piazza Duomo 6, 07041 Alghero (Sassari), Italy
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Faustini M, Grenier A, Naudin G, Li R, Grosso D. Ultraporous nanocrystalline TiO2-based films: synthesis, patterning and application as anti-reflective, self-cleaning, superhydrophilic coatings. NANOSCALE 2015; 7:19419-19425. [PMID: 26549535 DOI: 10.1039/c5nr06466j] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Crack-free, anatase-based optical coatings with a refractive index down to 1.27, a porosity up to 80 vol%, and a tunable thickness up to 1.5 μm were fabricated. The extraordinary stability of the porosity upon thermally induced crystallisation and template removal was attributed to the combined effects of the presence of 10% molar silica in the inorganic phase, a flash treatment at 500 °C, and the use of templates with different dimensions ranging from a few nanometers to 50 nm. The hierarchical porous system was directly patterned by UV lithography and used as multifunctional anti-reflective, self-cleaning coatings.
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Affiliation(s)
- Marco Faustini
- Sorbonne Universités, UPMC Univ Paris 06, CNRS, Collège de France, UMR 7574, Chimie de la Matière Condensée de Paris, F-75005, Paris, France.
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31
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Manurung RV, Fu PW, Chu YS, Lo CM, Chattopadhyay S. Videography supported adhesion, and proliferation behavior of MG-63 osteoblastic cells on 2.5D titania nanotube matrices. J Biomed Mater Res A 2015; 104:842-52. [PMID: 26650774 DOI: 10.1002/jbm.a.35623] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2015] [Revised: 11/05/2015] [Accepted: 12/03/2015] [Indexed: 11/06/2022]
Abstract
Human osteosarcoma cells MG-63 were cultured on anodically etched titania nanotubes (TiO2 NT), with diameters ranging from 40-100 nm, to study the correlations between cell proliferation and adhesion on the 2.5 dimensional (2.5D) extracellular matrix (ECM). Unlike other reports, mostly based on mouse stem cells, and 2D cell culture, our studies indicate that the 2.5D NT promote higher proliferation and activity, but less 2D adhesion. Proliferation of the MG-63 cells was significantly higher in the NTs, the best being the 70 nm diameter sample, compared to planar titania (control). This is consistent with previous studies. However, cellular adhesion was stronger on TiO2 NT with increasing diameter, and highest on the control as obtained from shear stress measurement, paxilin imaging, and western blot measurements probing focal adhesion kinase, p130 CAS, and extracellular-regulated kinase, in addition to cell morphology imaging by fluorescence microscopy. We provide direct videography of cell migration, and cell speed data indicating faster filopodial activity on the TiO2 NT surfaces having lower adhesion. This evidence was not available previously. The NT matrices promote cells with smaller surface area, because of less 2D stretching. In contrast, on comparatively planar 2D-like surfaces uniaxial stretching of the cell body with strong anchoring of the filopodia, resulted in larger cell surface area, and demonstrated stronger adhesion. The difference in the results, with those previously published, may be generally attributed to, among others, the use of mouse stem cells (human osteosarcoma used here), and unannealed as-grown TiO2 NTs used previously (annealed ECMs used here).
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Affiliation(s)
- Robeth Viktoria Manurung
- Institute of Biophotonics, School of Biomedical Science and Engineering, National Yang Ming University, 155, Sec-2, Li-Nong Street, Taipei, 112, Taiwan
| | - Pei-Wen Fu
- Department of Biomedical Engineering, National Yang Ming University, 155, Sec-2, Li-Nong Street, Taipei, 112, Taiwan
| | - Yeh-Shiu Chu
- Brain Research Center, National Yang-Ming University, 155, Sec-2, Li-Nong Street, Taipei, 112, Taiwan
| | - Chun-Min Lo
- Department of Biomedical Engineering, National Yang Ming University, 155, Sec-2, Li-Nong Street, Taipei, 112, Taiwan
| | - Surojit Chattopadhyay
- Institute of Biophotonics, School of Biomedical Science and Engineering, National Yang Ming University, 155, Sec-2, Li-Nong Street, Taipei, 112, Taiwan.,Biophotonic and Molecular Imaging Research Center, National Yang Ming University, 155, Sec-2, Li-Nong Street, Taipei, 112, Taiwan
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Li C, Jiang B, Miyamoto N, Kim JH, Malgras V, Yamauchi Y. Surfactant-Directed Synthesis of Mesoporous Pd Films with Perpendicular Mesochannels as Efficient Electrocatalysts. J Am Chem Soc 2015; 137:11558-61. [DOI: 10.1021/jacs.5b06278] [Citation(s) in RCA: 88] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Cuiling Li
- World
Premier International (WPI) Research Center for Materials Nanoarchitectonics
(MANA), National Institute for Materials Science (NIMS), 1-1 Namiki, Tsukuba, Ibaraki 305-0044, Japan
| | - Bo Jiang
- World
Premier International (WPI) Research Center for Materials Nanoarchitectonics
(MANA), National Institute for Materials Science (NIMS), 1-1 Namiki, Tsukuba, Ibaraki 305-0044, Japan
- Faculty
of Science and Engineering, Waseda University, 3-4-1 Okubo, Shinjuku, Tokyo 169-8555, Japan
| | - Nobuyoshi Miyamoto
- Department
of Life, Environment and Materials Science, Fukuoka Institute of Technology (FIT), 3-30-1 Wajiro-Higashi, Higashi, Fukuoka 811-0295, Japan
| | - Jung Ho Kim
- Institute
for Superconducting and Electronic Materials, Australian Institute
for Innovative Materials, University of Wollongong, Squires Way, North Wollongong, New South Wales 2500, Australia
| | - Victor Malgras
- World
Premier International (WPI) Research Center for Materials Nanoarchitectonics
(MANA), National Institute for Materials Science (NIMS), 1-1 Namiki, Tsukuba, Ibaraki 305-0044, Japan
| | - Yusuke Yamauchi
- World
Premier International (WPI) Research Center for Materials Nanoarchitectonics
(MANA), National Institute for Materials Science (NIMS), 1-1 Namiki, Tsukuba, Ibaraki 305-0044, Japan
- Faculty
of Science and Engineering, Waseda University, 3-4-1 Okubo, Shinjuku, Tokyo 169-8555, Japan
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Karlsson J, Atefyekta S, Andersson M. Controlling drug delivery kinetics from mesoporous titania thin films by pore size and surface energy. Int J Nanomedicine 2015; 10:4425-36. [PMID: 26185444 PMCID: PMC4501225 DOI: 10.2147/ijn.s83005] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
The osseointegration capacity of bone-anchoring implants can be improved by the use of drugs that are administrated by an inbuilt drug delivery system. However, to attain superior control of drug delivery and to have the ability to administer drugs of varying size, including proteins, further material development of drug carriers is needed. Mesoporous materials have shown great potential in drug delivery applications to provide and maintain a drug concentration within the therapeutic window for the desired period of time. Moreover, drug delivery from coatings consisting of mesoporous titania has shown to be promising to improve healing of bone-anchoring implants. Here we report on how the delivery of an osteoporosis drug, alendronate, can be controlled by altering pore size and surface energy of mesoporous titania thin films. The pore size was varied from 3.4 nm to 7.2 nm by the use of different structure-directing templates and addition of a swelling agent. The surface energy was also altered by grafting dimethylsilane to the pore walls. The drug uptake and release profiles were monitored in situ using quartz crystal microbalance with dissipation (QCM-D) and it was shown that both pore size and surface energy had a profound effect on both the adsorption and release kinetics of alendronate. The QCM-D data provided evidence that the drug delivery from mesoporous titania films is controlled by a binding-diffusion mechanism. The yielded knowledge of release kinetics is crucial in order to improve the in vivo tissue response associated to therapeutic treatments.
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Affiliation(s)
- Johan Karlsson
- Department of Chemical and Biological Engineering, Chalmers University of Technology, Gothenburg, Sweden
| | - Saba Atefyekta
- Department of Chemical and Biological Engineering, Chalmers University of Technology, Gothenburg, Sweden
| | - Martin Andersson
- Department of Chemical and Biological Engineering, Chalmers University of Technology, Gothenburg, Sweden
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Li C, Dag Ö, Dao TD, Nagao T, Sakamoto Y, Kimura T, Terasaki O, Yamauchi Y. Electrochemical synthesis of mesoporous gold films toward mesospace-stimulated optical properties. Nat Commun 2015; 6:6608. [PMID: 25799072 PMCID: PMC4382992 DOI: 10.1038/ncomms7608] [Citation(s) in RCA: 107] [Impact Index Per Article: 11.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2014] [Accepted: 02/11/2015] [Indexed: 12/25/2022] Open
Abstract
Mesoporous gold (Au) films with tunable pores are expected to provide fascinating optical properties stimulated by the mesospaces, but they have not been realized yet because of the difficulty of controlling the Au crystal growth. Here, we report a reliable soft-templating method to fabricate mesoporous Au films using stable micelles of diblock copolymers, with electrochemical deposition advantageous for precise control of Au crystal growth. Strong field enhancement takes place around the center of the uniform mesopores as well as on the walls between the pores, leading to the enhanced light scattering as well as surface-enhanced Raman scattering (SERS), which is understandable, for example, from Babinet principles applied for the reverse system of nanoparticle ensembles.
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Affiliation(s)
- Cuiling Li
- World Premier International (WPI) Research Center for Materials Nanoarchitectonics (MANA), National Institute for Materials Science (NIMS), 1-1 Namiki, Tsukuba, Ibaraki 305-0044, Japan
| | - Ömer Dag
- Department of Chemistry, Bilkent University, 06800 Ankara, Turkey
| | - Thang Duy Dao
- 1] World Premier International (WPI) Research Center for Materials Nanoarchitectonics (MANA), National Institute for Materials Science (NIMS), 1-1 Namiki, Tsukuba, Ibaraki 305-0044, Japan [2] PRESTO and CREST, Japan Science and Technology Agency (JST), 4-1-8 Honcho, Kawaguchi, Saitama 332-0012, Japan [3] Graduate School of Materials Science, Nara Institute of Science and Technology, 8916-5 Takayama, Ikoma, Nara 630-0192, Japan
| | - Tadaaki Nagao
- 1] World Premier International (WPI) Research Center for Materials Nanoarchitectonics (MANA), National Institute for Materials Science (NIMS), 1-1 Namiki, Tsukuba, Ibaraki 305-0044, Japan [2] PRESTO and CREST, Japan Science and Technology Agency (JST), 4-1-8 Honcho, Kawaguchi, Saitama 332-0012, Japan
| | - Yasuhiro Sakamoto
- 1] PRESTO and CREST, Japan Science and Technology Agency (JST), 4-1-8 Honcho, Kawaguchi, Saitama 332-0012, Japan [2] Department of Physics, Graduate School of Science, Osaka University, 1-1 Machikaneyama-cho, Toyonaka, Osaka 560-0043, Japan
| | - Tatsuo Kimura
- Advanced Manufacturing Research Institute, National Institute of Advanced Industrial Science and Technology (AIST), Shimoshidami, Moriyama, Nagoya 463-8560, Japan
| | - Osamu Terasaki
- 1] Graduate School of EEWS (BK21Plus), KAIST, Daejeon 305-701, Korea [2] Department of Materials and Environmental Chemistry, EXSELENT, Stockholm University, 10691 Stockholm, Sweden
| | - Yusuke Yamauchi
- 1] World Premier International (WPI) Research Center for Materials Nanoarchitectonics (MANA), National Institute for Materials Science (NIMS), 1-1 Namiki, Tsukuba, Ibaraki 305-0044, Japan [2] Department of Nanoscience and Nanoengineering, Faculty of Science and Engineering, Waseda University, 3-4-1 Okubo, Shinjuku, Tokyo 169-8555, Japan
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Carboni D, Pinna A, Amenitsch H, Casula MF, Loche D, Malfatti L, Innocenzi P. Getting order in mesostructured thin films, from pore organization to crystalline walls, the case of 3-glycidoxypropyltrimethoxysilane. Phys Chem Chem Phys 2015; 17:10679-86. [DOI: 10.1039/c5cp00433k] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A new type of hybrid organic–inorganic film showing long-range ordered mesostructure and crystalline pore walls has been successfully prepared.
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Affiliation(s)
- Davide Carboni
- Laboratorio di Scienza dei Materiali e Nanotecnologie
- D.A.D.U., Università di Sassari
- CR-INSTM
- Palazzo Pou Salid
- 07041 Alghero
| | - Alessandra Pinna
- Laboratorio di Scienza dei Materiali e Nanotecnologie
- D.A.D.U., Università di Sassari
- CR-INSTM
- Palazzo Pou Salid
- 07041 Alghero
| | - Heinz Amenitsch
- Institute of Inorganic Chemistry
- Graz University of Technology
- 8010 Graz
- Austria
| | - Maria F. Casula
- Dipartimento di Scienze Chimiche e Geologiche
- Università di Cagliari
- 09042 Monserrato (CA)
- Italy
| | - Danilo Loche
- Dipartimento di Scienze Chimiche e Geologiche
- Università di Cagliari
- 09042 Monserrato (CA)
- Italy
| | - Luca Malfatti
- Laboratorio di Scienza dei Materiali e Nanotecnologie
- D.A.D.U., Università di Sassari
- CR-INSTM
- Palazzo Pou Salid
- 07041 Alghero
| | - Plinio Innocenzi
- Laboratorio di Scienza dei Materiali e Nanotecnologie
- D.A.D.U., Università di Sassari
- CR-INSTM
- Palazzo Pou Salid
- 07041 Alghero
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36
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Carretero-Genevrier A, Drisko GL, Grosso D, Boissiere C, Sanchez C. Mesoscopically structured nanocrystalline metal oxide thin films. NANOSCALE 2014; 6:14025-14043. [PMID: 25224841 DOI: 10.1039/c4nr02909g] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
This review describes the main successful strategies that are used to grow mesostructured nanocrystalline metal oxide and SiO₂ films via deposition of sol-gel derived solutions. In addition to the typical physicochemical forces to be considered during crystallization, mesoporous thin films are also affected by the substrate-film relationship and the mesostructure. The substrate can influence the crystallization temperature and the obtained crystallographic orientation due to the interfacial energies and the lattice mismatch. The mesostructure can influence the crystallite orientation, and affects nucleation and growth behavior due to the wall thickness and pore curvature. Three main methods are presented and discussed: templated mesoporosity followed by thermally induced crystallization, mesostructuration of already crystallized metal oxide nanobuilding units and substrate-directed crystallization with an emphasis on very recent results concerning epitaxially grown piezoelectric structured α-quartz films via crystallization of amorphous structured SiO₂ thin films.
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Affiliation(s)
- Adrian Carretero-Genevrier
- Institut des Nanotechnologies de Lyon (INL) CNRS - Ecole Centrale de Lyon, 36 avenue Guy de Collongue, 69134 Ecully, France
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Faustini M, Ceratti DR, Louis B, Boudot M, Albouy PA, Boissière C, Grosso D. Engineering functionality gradients by dip coating process in acceleration mode. ACS APPLIED MATERIALS & INTERFACES 2014; 6:17102-17110. [PMID: 25145291 DOI: 10.1021/am504770x] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
In this work, unique functional devices exhibiting controlled gradients of properties are fabricated by dip-coating process in acceleration mode. Through this new approach, thin films with "on-demand" thickness graded profiles at the submillimeter scale are prepared in an easy and versatile way, compatible for large-scale production. The technique is adapted to several relevant materials, including sol-gel dense and mesoporous metal oxides, block copolymers, metal-organic framework colloids, and commercial photoresists. In the first part of the Article, an investigation on the effect of the dip coating speed variation on the thickness profiles is reported together with the critical roles played by the evaporation rate and by the viscosity on the fluid draining-induced film formation. In the second part, dip-coating in acceleration mode is used to induce controlled variation of functionalities by playing on structural, chemical, or dimensional variations in nano- and microsystems. In order to demonstrate the full potentiality and versatility of the technique, original graded functional devices are made including optical interferometry mirrors with bidirectional gradients, one-dimensional photonic crystals with a stop-band gradient, graded microfluidic channels, and wetting gradient to induce droplet motion.
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Affiliation(s)
- Marco Faustini
- Sorbonne Universités, UPMC Univ Paris 06, CNRS, Collège de France, UMR 7574, Chimie de la Matière Condensée de Paris, F-75005 Paris, France
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38
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Fattakhova-Rohlfing D, Zaleska A, Bein T. Three-Dimensional Titanium Dioxide Nanomaterials. Chem Rev 2014; 114:9487-558. [DOI: 10.1021/cr500201c] [Citation(s) in RCA: 303] [Impact Index Per Article: 30.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Dina Fattakhova-Rohlfing
- Department
of Chemistry and Center for NanoScience (CeNS), University of Munich (LMU), Butenandtstrasse 5-13 (E), 81377 Munich, Germany
| | - Adriana Zaleska
- Department
of Environmental Technology, Faculty of Chemistry, University of Gdansk, Wita Stwosza 63, 80-308 Gdansk, Poland
| | - Thomas Bein
- Department
of Chemistry and Center for NanoScience (CeNS), University of Munich (LMU), Butenandtstrasse 5-13 (E), 81377 Munich, Germany
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39
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Pan JH, Wang Q, Bahnemann DW. Hydrous TiO2 spheres: An excellent platform for the rational design of mesoporous anatase spheres for photoelectrochemical applications. Catal Today 2014. [DOI: 10.1016/j.cattod.2013.08.007] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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40
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Versatility of Evaporation-Induced Self-Assembly (EISA) Method for Preparation of Mesoporous TiO₂ for Energy and Environmental Applications. MATERIALS 2014; 7:2697-2746. [PMID: 28788590 PMCID: PMC5453358 DOI: 10.3390/ma7042697] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/30/2013] [Revised: 02/25/2014] [Accepted: 03/24/2014] [Indexed: 11/17/2022]
Abstract
Evaporation-Induced Self-Assembly (EISA) method for the preparation of mesoporous titanium dioxide materials is reviewed. The versatility of EISA method for the rapid and facile synthesis of TiO₂ thin films and powders is highlighted. Non-ionic surfactants such as Pluronic P123, F127 and cationic surfactants such as cetyltrimethylammonium bromide have been extensively employed for the preparation of mesoporous TiO₂. In particular, EISA method allows for fabrication of highly uniform, robust, crack-free films with controllable thickness. Eleven characterization techniques for elucidating the structure of the EISA prepared mesoporous TiO₂ are discussed in this paper. These many characterization methods provide a holistic picture of the structure of mesoporous TiO₂. Mesoporous titanium dioxide materials have been employed in several applications that include Dye Sensitized Solar Cells (DSSCs), photocatalytic degradation of organics and splitting of water, and batteries.
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Chieffi G, Di Girolamo R, Aronne A, Pernice P, Fanelli E, Lazzari M, De Rosa C, Auriemma F. Rapid-flux-solvent-atmosphere method for tailoring the morphology of titania substrates over a large area via direct self-assembly of block copolymers. RSC Adv 2014. [DOI: 10.1039/c4ra00110a] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
A fast method for the preparation of block-copolymer-based hybrid composite nanostructures and titania substrates well oriented over a large area, is illustrated.
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Affiliation(s)
- Gianpaolo Chieffi
- Dipartimento di Ingegneria Chimica
- dei Materiali e della Produzione Industriale
- Università di Napoli Federico II
- 80125 Naples, Italy
| | - Rocco Di Girolamo
- Dipartimento di Scienze Chimiche
- Università di Napoli Federico II
- Napoli, Italy
| | - Antonio Aronne
- Dipartimento di Ingegneria Chimica
- dei Materiali e della Produzione Industriale
- Università di Napoli Federico II
- 80125 Naples, Italy
| | - Pasquale Pernice
- Dipartimento di Ingegneria Chimica
- dei Materiali e della Produzione Industriale
- Università di Napoli Federico II
- 80125 Naples, Italy
| | - Esther Fanelli
- Dipartimento di Ingegneria Chimica
- dei Materiali e della Produzione Industriale
- Università di Napoli Federico II
- 80125 Naples, Italy
| | - Massimo Lazzari
- Centre for Research in Biological Chemistry and Molecular Materials (CIQUS)
- University of Santiago de Compostela
- Santiago de Compostela, Spain
| | - Claudio De Rosa
- Dipartimento di Scienze Chimiche
- Università di Napoli Federico II
- Napoli, Italy
| | - Finizia Auriemma
- Dipartimento di Scienze Chimiche
- Università di Napoli Federico II
- Napoli, Italy
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42
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Bellino MG, Golbert S, De Marzi MC, Soler-Illia GJAA, Desimone MF. Controlled adhesion and proliferation of a human osteoblastic cell line by tuning the nanoporosity of titania and silica coatings. Biomater Sci 2013; 1:186-189. [DOI: 10.1039/c2bm00136e] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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44
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Innocenzi P, Malfatti L. Mesoporous thin films: properties and applications. Chem Soc Rev 2013; 42:4198-216. [PMID: 23396534 DOI: 10.1039/c3cs35377j] [Citation(s) in RCA: 239] [Impact Index Per Article: 21.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Affiliation(s)
- Plinio Innocenzi
- Laboratorio di Scienza dei Materiali e Nanotecnologie (LMNT), D.A.D.U., CR-INSTM, Università di Sassari, Palazzo Pou Salid, Piazza Duomo 6, 07041 Alghero (SS), Italy.
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Violi IL, Perez MD, Fuertes MC, Soler-Illia GJAA. Highly ordered, accessible and nanocrystalline mesoporous TiO₂ thin films on transparent conductive substrates. ACS APPLIED MATERIALS & INTERFACES 2012; 4:4320-30. [PMID: 22823883 DOI: 10.1021/am300990p] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/25/2023]
Abstract
Highly porous (V(mesopore) = 25-50%) and ordered mesoporous titania thin films (MTTF) were prepared on ITO (indium tin oxide)-covered glass by a fast two-step method. The effects of substrate surface modification and thermal treatment on pore order, accessibility and crystallinity of the MTTF were systematically studied for MTTF deposited onto bare and titania-modified ITO. MTTF exposed briefly to 550 °C resulted in highly ordered films with grid-like structures, enlarged pore size, and increased accessible pore volume when prepared onto the modified ITO substrate. Mesostructure collapse and no significant change in pore volume were observed for MTTF deposited on bare ITO substrates. Highly crystalline anatase was obtained for MTTF prepared on the modified-ITO treated at high temperatures, establishing the relationship between grid-like structures and titania crystallization. Photocatalytic activity was maximized for samples with increased crystallization and high accessible pore volume. In this manner, a simple way of designing materials with optimized characteristics for optoelectronic applications was achieved through the modification of the ITO surface and a controlled thermal treatment.
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Affiliation(s)
- Ianina L Violi
- Gerencia Química, Centro Atómico Constituyentes, Comisión Nacional de Energía Atómica, Av. Gral. Paz 1499, B1650KNA, San Martín, Buenos Aires, Argentina
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46
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Kim CW, Pal U, Park S, Kim YH, Kim J, Kang YS. Crystallization induced porosity control and photocatalytic activity of ordered mesoporous TiO2. RSC Adv 2012. [DOI: 10.1039/c2ra21391e] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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