Photonic band gap in a disordered two-dimensional structure: Transmission properties of porous anodic alumina films

Kuplicki, Kyrus; Rowland, Jarod; Holmstrom, Scott A.

doi:10.1364/fio.2003.wb4

Cited by 1 publication

(1 citation statement)

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“…Since the pioneering discovery of nanoporous anodic alumina (NAA) by Masuda and coworkers, NAA has proven itself to be one of the most promising base templates to be used in fabricating varieties of nanoporous architectures [ 13 , 14 ]. NAA can easily be prepared by simple electrochemical anodization of aluminium in an electrolytic solution and consists of closed hexagonal arrays of nanopores from top to bottom.…”

Section: Introductionmentioning

confidence: 99%

Optical Platform to Analyze a Model Drug-Loading and Releasing Profile Based on Nanoporous Anodic Alumina Gradient Index Filters

et al. 2021

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In this work, a methodology that exploits the optical properties of the nanoporous anodic alumina gradient index filters (NAA-GIFs) has been developed and applied to evaluate in real time the release dynamics of a cargo molecule, acting as a model drug, filling the pores. NAA-GIFs with two photonic stopbands (PSBs) were prepared with one of its stop bands in the same absorption wavelength range of the cargo molecule, whereas the second stopband away from this absorption range. Numerical simulation and experiments confirm that the relative height of the high reflectance bands in the reflectance spectra of NAA-GIFs filled with the drug can be related to the relative amount of drug filling the pores. This property has been applied in a flow cell setup to measure in real-time the release dynamics of NAA-GIFs with the inner pore surface modified by layer-by-layer deposition of polyelectrolytes and loaded with the cargo molecule. The methodology developed in this work acts as a tool for the study of drug delivery from porous nanostructures.

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Section: Introductionmentioning

confidence: 99%