scholarly journals Functionalized Mesoporous Thin Films for Biotechnology

Micromachines ◽  
2021 ◽  
Vol 12 (7) ◽  
pp. 740
Author(s):  
Barbara Sartori ◽  
Heinz Amenitsch ◽  
Benedetta Marmiroli
Keyword(s):  
Thin Films ◽  
Mesoporous Materials ◽  
High Surface ◽  
High Surface Area ◽  
Chemical Species ◽  
Functional Materials ◽  
Immobilized Enzymes ◽  
Bioactive Coatings ◽  
Innovative Materials ◽  
Silica And Titania

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.

Hierarchical 3D-flower-like CuO nanostructure on copper foil for supercapacitors

RSC Advances ◽  
2015 ◽  
Vol 5 (6) ◽  
pp. 4443-4447 ◽  
Author(s):  
S. K. Shinde ◽  
D. P. Dubal ◽  
G. S. Ghodake ◽  
V. J. Fulari
Keyword(s):  
Thin Films ◽  
Surface Area ◽  
Copper Foil ◽  
High Surface ◽  
High Surface Area ◽  
Cuo Nanostructure

We present a novel route for the synthesis of CuO thin films. The nano-flower like nanostructures provide high surface area, and the CuO shows excellent supercapacitive properties.

Defect Chemistry of Oxide Nanomaterials with High Surface Area: Ordered Mesoporous Thin Films of the Oxygen Storage Catalyst CeO2–ZrO2

ACS Nano ◽  
2013 ◽  
Vol 7 (4) ◽  
pp. 2999-3013 ◽  
Author(s):  
Pascal Hartmann ◽  
Torsten Brezesinski ◽  
Joachim Sann ◽  
Andriy Lotnyk ◽  
Jens-Peter Eufinger ◽  
...  
Keyword(s):  
Thin Films ◽  
Surface Area ◽  
High Surface ◽  
High Surface Area ◽  
Defect Chemistry ◽  
Oxygen Storage ◽  
Ordered Mesoporous ◽  
Mesoporous Thin Films ◽  
Storage Catalyst

scholarly journals Atomic Layer Deposition of GdCoO3 and Gd0.9Ca0.1CoO3

Materials ◽  
2019 ◽  
Vol 13 (1) ◽  
pp. 24
Author(s):  
Marion Duparc ◽  
Henrik Hovde Sønsteby ◽  
Ola Nilsen ◽  
Anja Olafsen Sjåstad ◽  
Helmer Fjellvåg
Keyword(s):  
Thin Films ◽  
Aspect Ratio ◽  
Atomic Layer Deposition ◽  
High Aspect Ratio ◽  
High Surface ◽  
High Surface Area ◽  
Atomic Layer ◽  
Oxidation Catalysis ◽  
Post Annealing ◽  
Layer Deposition

Thin films of the catalytically interesting ternary and quaternary perovskites GdCoO3 and Gd0.9Ca0.1CoO3 are fabricated by atomic layer deposition using metal β-diketonates and ozone as precursors. The resulting thin films are amorphous as deposited and become single-oriented crystalline on LaAlO3(100) and YAlO3(100/010) after post-annealing at 650 °C in air. The crystal orientations of the films are tunable by choice and the orientation of the substrate, mitigated through the interface via solid face epitaxy upon annealing. The films exhibit no sign of Co2+. Additionally, high-aspect-ratio Si(100) substrates were used to document the suitability of the developed process for the preparation of coatings on more complex, high-surface-area structures. We believe that coatings of GdCoO3 and Gd1−xCaxCoO3 may find applications within oxidation catalysis.

Removal of perfluorooctanoic acid from water by adsorption on high surface area mesoporous materials

2014 ◽  
Author(s):  
Marianna Nassi ◽  
Elena Sarti ◽  
Luisa Pasti ◽  
Annalisa Martucci ◽  
Nicola Marchetti ◽  
...  
Keyword(s):  
Surface Area ◽  
Mesoporous Materials ◽  
High Surface ◽  
High Surface Area ◽  
Perfluorooctanoic Acid

Mesoporous thin films of high-surface-area crystalline cerium dioxide

2002 ◽  
Vol 54 (1-2) ◽  
pp. 97-103 ◽  
Author(s):  
Mats Lundberg ◽  
Björn Skårman ◽  
Fredrik Cesar ◽  
L Reine Wallenberg
Keyword(s):  
Thin Films ◽  
Surface Area ◽  
Cerium Dioxide ◽  
High Surface ◽  
High Surface Area ◽  
Mesoporous Thin Films

scholarly journals Synthesis and characterization of mesoporous materials with SBA and MCM structure types

Cerâmica ◽  
2019 ◽  
Vol 65 (376) ◽  
pp. 585-591
Author(s):  
R. A. Sacramento ◽  
O. M. S. Cysneiros ◽  
B. J. B. Silva ◽  
A. O. S. Silva
Keyword(s):  
Surface Area ◽  
Mesoporous Materials ◽  
High Surface ◽  
High Surface Area ◽  
Textural Properties ◽  
N2 Adsorption ◽  
Structure Directing Agent ◽  
Type Iv ◽  
Xrd Patterns ◽  
Adsorption Desorption

Abstract Mesoporous materials are promising structures for application in catalysis and adsorption due to high surface area and large pore size. Mesoporous materials were synthesized by the hydrothermal method with novel surfactants, distinct from those observed in the literature, in order to carry out a study of its structure and to obtain materials with better textural properties. The structures synthesized with the surfactants Igepal CO630 and Brij O20 presented the best results of specific surface area, 1074 and 1075 m2.g-1, respectively. The obtained materials were characterized by XRD, TG/DTG, N2 adsorption-desorption, and FTIR techniques. XRD patterns indicated that the highly ordered mesoporous silica structures, such as MCM-41 and MCM-48, using CTMABr as the structure-directing agent and the SBA-15, SBA-16 and other SBA structures using different block copolymers were obtained. Through N2 adsorption-desorption isotherms, it was observed type IV isotherms, attributed to mesoporous materials. The FTIR spectra presented similar behaviors with characteristic vibrational bands of MCM and SBA type materials.

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