Results 221 to 230 of about 16,391 (270)

Biomedical Applications of Anodic Porous Alumina

Current Nanoscience, 2015
In the last decade, the number of possible biological and biomedical applications suggested in the literature for anodic porous alumina has increased significantly. Here we shortly review the existing literature and show the most recent and successful directions taken by research in this area.
TOCCAFONDI, CHIARA, DANTE, SILVIA, REVERBERI, ANDREA, Salerno, Marco   +3 more
openaire   +2 more sources

Adsorption on Porous Anodized Alumina

Poromechanics VI, 2017
Porous anodized aluminum oxide (AAO) is an ideal playground for fundamental studies on adsorption. Straight, not-interconnected pores having diameter of a few tens of nanometers with a relative dispersion below 1% and lengths up to hundreds of microns can be easily produced on large surface areas.
MISTURA, GIAMPAOLO, BRUSCHI, LORENZO, Lee, W.   +2 more
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Contact angle studies on anodic porous alumina

Journal of Colloid and Interface Science, 2005
The preparation of nanostructures using porous anodic aluminum oxide (AAO) as templates involves the introduction of dissolved materials into the pores of the membranes; one way to determine which materials are preferred to fill the pores involves the measurement of the contact angles (theta) of different solvents or test liquids on the AAOs.
Rocío, Redón, A, Vázquez-Olmos, M E, Mata-Zamora, A, Ordóñez-Medrano, F, Rivera-Torres, J M, Saniger   +5 more
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F8BT nanopillars from porous anodic alumina

physica status solidi (a), 2010
AbstractPoly(9,9‐di‐n‐octylfluorene‐alt‐benzothiadiazole) (F8BT) nanopillars were fabricated using the template wetting method. In order to obtain nanostructures, self‐ordered nanoporous alumina has been employed as template. Environmental scanning electron microscopy (ESEM) images reveal that the resulting F8BT structures present diameters ∼225 nm and
Raquel Palacios, Pilar Formentín, Eugenia Martínez‐Ferrero, Josep Ferre‐Borrull, Josep Pallarès, Lluis F. Marsal   +5 more
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Optoelectronic applications of porous anodic alumina

Transactions of the IMF, 2005
AbstractPhotoluminescence (PL) and electroluminescence (EL) from porous anodic alumina (PAA) with incorporated sol–gel derived films, doped with erbium, europium and terbium, for possible optoelectronic applications, are described. For example, visible (green) and IR PL from erbium doped titania and indium–tin oxide specimens is displayed.
I. S. Molchan, N. V. Gaponenko, G. E. Thompson, P. Skeldon, D. A. Tsyrkunov, G. K. Malyarevich, A. P. Stupak   +6 more
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Catalysis over Porous Anodic Alumina Catalysts

Journal of Catalysis, 1994
Porous alumina films with a high pore surface density, of the order of 10[sup 10]/cm[sup 2], were prepared on Al metal by the galvanostatic anodic oxidation of Al metal in a thermostated, nonstirred bath of H[sub 2]SO[sub 4] solution, 15% w/v, at various bath temperatures and current densities that resulted in different oxide film thicknesses, in order
G. Patermarakis, C. Pavlidou
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Preparation of Porous Alumina by Anodization

Journal of Metastable and Nanocrystalline Materials, 2005
The characteristics of porous alumina produced by anodization in both oxalic acid and sulfuric acid solution have been studied. The diameter of the pores for oxalic acid as electrolyte is about 60 nm and for sulfuric acid as electrolyte is about 30 nm. The morphologies of the pores have been improved by two-step anodization process.
C.X. Xu, X.S. Zhang, X.W. Sun
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Photonic Crystal Using Anodic Porous Alumina

Japanese Journal of Applied Physics, 1999
Two-dimensional (2D) photonic crystals in the visible wavelength region were fabricated using anodic porous alumina with a highly ordered hole array configuration. The transmission properties of an ordered triangular array of an air cylinders with high aspect ratio in alumina matrix showed a stop band in the spectrum which corresponds
Hideki Masuda, Masayuki Ohya, Hidetaka Asoh, Masashi Nakao, Masaya Nohtomi, Toshiaki Tamamura   +5 more
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Electroosmotic Pumping Using Porous Anodic Alumina Membranes

ASME 2008 First International Conference on Micro/Nanoscale Heat Transfer, Parts A and B, 2008
This study demonstrated electroosmotic pumping with high flow rate per unit area at a rather low applied voltage through an alumina nano-porous membrane driven by Platinum mesh electrodes. The electrode was placed perpendicular to, and had direct contact with nano-channel inlet to reduce the electric voltage drop in the reservoir.
Yu-Feng Chen, Ming-Chia Li, Wen-Jeng Chang, Chi-Chuan Wang, C. P. Chen   +4 more
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Characterization of anodic porous alumina by AFM

Materials Letters, 2001
Abstract The topography of supported and unsupported anodic aluminum oxide (AAO) films was measured by AFM under different testing modes. The supported film, attached onto an aluminum substrate, is mechanically stable and the contact mode shows good resolution for imaging the intrinsic features of the surface.
YuCheng Sui, José M. Saniger
openaire   +1 more source