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left1790700Nanoporous anodic alumina substrates (NAAOs) are fabricated using an inexpensive electrochemical method where self-ordered nanopore growth occurs upon the anodic oxidation of pure aluminum. The enhanced sensing performance of NAAOs is based on the immobilization of target molecules in the optical cavity provided by the nanopore channels.00Nanoporous anodic alumina substrates (NAAOs) are fabricated using an inexpensive electrochemical method where self-ordered nanopore growth occurs upon the anodic oxidation of pure aluminum. The enhanced sensing performance of NAAOs is based on the immobilization of target molecules in the optical cavity provided by the nanopore channels.282003512700002743200308610000287464562718950048463204649470003587756433820004635503163570003365508281670Salvo NAAO - SEM Image00Salvo NAAO - SEM Image45974005682615Spectroscopic Sensing00Spectroscopic Sensing24892004605020When combined with spectroscopy, the optical response of the NAAOs can serve as a highly sensitive probe to monitor the chemical environment at the nanopores.00When combined with spectroscopy, the optical response of the NAAOs can serve as a highly sensitive probe to monitor the chemical environment at the nanopores.2413003253740NAOO Substrate Slide00NAOO Substrate Slide51511207376160Increased Reflectance00Increased Reflectance501650072186800right990600Nanoporous Anodic Alumina (NAAO) SERS Substrates00Nanoporous Anodic Alumina (NAAO) SERS Substrates12573001403350An advanced optical sensing device020000An advanced optical sensing deviceright148185000-41910029781500504825178273Interferometric Reflectance Spectroscopy (IRS)00Interferometric Reflectance Spectroscopy (IRS)54750265232Δλ00Δλ3533073274052IRS utilizes Fabry-Perot (FP) interference patterns in the NAAO reflectance spectrum to sense changes in the refractive index of the local environment.00IRS utilizes Fabry-Perot (FP) interference patterns in the NAAO reflectance spectrum to sense changes in the refractive index of the local environment.40281993045351An enhanced Raman signal can be detected using the NAOO substrate by implementing gold or silver nanoparticles. Here, the Raman enhancement is driven by the plasmonic properties of the metal nanoparticles.00An enhanced Raman signal can be detected using the NAOO substrate by implementing gold or silver nanoparticles. Here, the Raman enhancement is driven by the plasmonic properties of the metal nanoparticles.16813703029980008373462910271006934202280876Surface Enhanced Raman Scattering Spectroscopy 00Surface Enhanced Raman Scattering Spectroscopy 477520578802509144005842000NAAO Applications SensorsTemplatesFiltering and separationDrug delivery00NAAO Applications SensorsTemplatesFiltering and separationDrug delivery6496056178550Photonic crystalsBiosensorNanostructure templatesPhotocatalysisDrug delivery00Photonic crystalsBiosensorNanostructure templatesPhotocatalysisDrug delivery36391856172835Gas SensingNanoplasmonicsPhotonic BarcodingDrug delivery00Gas SensingNanoplasmonicsPhotonic BarcodingDrug delivery ................
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