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The work emphasized self-organized arrangement ofįast anodization fabrication of AAO and barrier perforation process on ITO glass Experimentals Anodized aluminum oxide ( AAO ) template was prepared from 99.999% purity aluminum foil by performing the following.to prepare uniform dimension of nanomaterials is to use anodized alumina membrane as template. Oxide and alujminum oxide in anodized aluminum oxide ( AAO ) template with various aspect ratio and.than 3 nm. Synthesis of Hybrid Conducting Nanowire Using AAO Template Our work is a breakthrough for the broad research field of surface nano-masking.įabrication of nanopore and nanoparticle arrays with high aspect ratio AAO masks
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The flat AAO substrates and uneven AAO frontages were attached to the Si substrates respectively as an etching mask, which demonstrates that the two kinds of replication, positive and negative, represent the replication of the mirroring of Si substrates relative to the flat AAO substrates and uneven AAO frontages. The result shows that the fabricated nanopore and nanoparticle arrays of substrates inherit the regularity of the AAO membranes completely. Here we describe the versatile utilizations of the highly ordered AAO membranes with a high aspect ratio of more than 20 used as universal masks for the formation of various nanostructure arrays on various substrates.
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How to use high aspect ratio anodic aluminum oxide ( AAO) membranes as an etching and evaporation mask is one of the unsolved problems in the application of nanostructured arrays. Li, Z P Xu, Z M Qu, X P Wang, S B Peng, J Mei, L H The above phenomena caused by Co nano-particles in Co/ AAO composite were analyzed.įabrication of nanopore and nanoparticle arrays with high aspect ratio AAO masks. Meanwhile the absorption edges of Co/ AAO show a larger redshift, and the largest shift from the near ultraviolet to the infrared exceeds 380 nm. And with the increase in the deposition amount of Co nanoparticles, the PL intensity of Co/ AAO nano-array structures decreases gradually, and their peak positions of the PL are invariable (395 nm). The results show that a marked photoluminescence band of AAO membranes occurs in the wavelength range of 350-550 nm and their PL peak position is at 395 nm. The photoluminescence (PL) emission and photoabsorption of AAO templates and Co/ AAO nano-array structures were investigated respectively. Ordered Co/ AAO nano-array structures were fabricated by alternating current (AC) electrodeposition method within the cylindrical pores of anodic aluminum oxide ( AAO) template prepared in oxalic acid electrolyte. Li, Shou-Yi Wang, Cheng-Wei Li, Yan Wang, Jian Ma, Bao-Hong AAO membranes appear to be an excellent candidate for cellular devices, but more work must be completed to understand the surface chemistry of the AAO membranes as it relates to cellular response. Scanning electron microscopy (SEM) and ICC images suggested the presence of a tissue-like layer with a mixed-phenotype population. Additionally, lower neuronal percentages were found on AAO as compared to TCT glass however, neuronal population was also found to vary with pore diameter. Immunocytochemistry (ICC) showed that AAO membranes had increased neurite outgrowth when compared to tissue culture treated (TCT) glass, and neurite outgrowth varied with pore diameter. Analysis of membranes before and after cell culture indicated no breakdown of the through-pore structure.
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The data suggests a highly tunable correlation between AAO pore diameter and differentiated cell populations. C17.2 neural stem cells were seeded onto the membranes and differentiated via serum withdrawal. An operating window was established for this setup to create membranes with through-pore and disordered pore morphologies. AAO membranes with pore diameters ranging from 34-117 nm were achieved via anodization at a temperature of -1Â☌ in a 2.7% oxalic acid electrolyte. The objective of this study was to characterize the cellular response of AAO membranes with varying pore sizes to serve as a proof-of-concept for an artificial material/cell synapse system. Anodic Aluminum Oxide ( AAO) Membranes for Cellular DevicesĪnodic Aluminum Oxide ( AAO) membranes can be fabricated with a highly tunable pore structure making them a suitable candidate for cellular hybrid devices with single-molecule selectivity.