{"title":"Tailoring Nanopore Geometry in Anodic Aluminum Oxide Membranes through Physical Stretching and Controlled Anodization","authors":"Yu-Chun Liu, Yi-Fan Chen, Yu-Chun Lin, You-Hao Zheng, Lin-Ruei Lee, Ming-Hsuan Chang, Jhih-Hao Ho, Yu-Liang Lin, Jiun-Tai Chen","doi":"10.1002/admi.202400699","DOIUrl":null,"url":null,"abstract":"<p>The fabrication and application of anodic aluminum oxide (AAO) membranes with tailored nanopore geometries have profound implications in materials science and engineering. This study introduces a refined physical stretching method combined with precisely controlled anodization conditions to manipulate the anisotropy of nanopores in AAO membranes. By employing high-purity aluminum sheets and varying electrolytes such as sulfuric acid, oxalic acid, and phosphoric acid, anisotropic shapes are carried out with aspect ratios varying based on the applied mechanical forces and electrolytic conditions. The capability to produce AAO membranes with non-uniform pore distributions is also demonstrated by applying irregular stretching forces, revealing the potential for creating customized nanostructures. The anisotropic AAO membranes serve as effective templates for synthesizing polymer nanorods, indicating their utility in guiding the formation of advanced nanomaterials with specific directional properties. Our results showcase the role of mechanical and chemical parameters in tailoring nanoscale material properties. The versatility of horizontally anisotropic AAO membranes in nanofabrication enables better control of nanopore geometry for applications in nanoelectronics, drug delivery, and biosensing.</p>","PeriodicalId":115,"journal":{"name":"Advanced Materials Interfaces","volume":"12 6","pages":""},"PeriodicalIF":4.3000,"publicationDate":"2025-01-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/admi.202400699","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Advanced Materials Interfaces","FirstCategoryId":"88","ListUrlMain":"https://onlinelibrary.wiley.com/doi/10.1002/admi.202400699","RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"CHEMISTRY, MULTIDISCIPLINARY","Score":null,"Total":0}
引用次数: 0
Abstract
The fabrication and application of anodic aluminum oxide (AAO) membranes with tailored nanopore geometries have profound implications in materials science and engineering. This study introduces a refined physical stretching method combined with precisely controlled anodization conditions to manipulate the anisotropy of nanopores in AAO membranes. By employing high-purity aluminum sheets and varying electrolytes such as sulfuric acid, oxalic acid, and phosphoric acid, anisotropic shapes are carried out with aspect ratios varying based on the applied mechanical forces and electrolytic conditions. The capability to produce AAO membranes with non-uniform pore distributions is also demonstrated by applying irregular stretching forces, revealing the potential for creating customized nanostructures. The anisotropic AAO membranes serve as effective templates for synthesizing polymer nanorods, indicating their utility in guiding the formation of advanced nanomaterials with specific directional properties. Our results showcase the role of mechanical and chemical parameters in tailoring nanoscale material properties. The versatility of horizontally anisotropic AAO membranes in nanofabrication enables better control of nanopore geometry for applications in nanoelectronics, drug delivery, and biosensing.
期刊介绍:
Advanced Materials Interfaces publishes top-level research on interface technologies and effects. Considering any interface formed between solids, liquids, and gases, the journal ensures an interdisciplinary blend of physics, chemistry, materials science, and life sciences. Advanced Materials Interfaces was launched in 2014 and received an Impact Factor of 4.834 in 2018.
The scope of Advanced Materials Interfaces is dedicated to interfaces and surfaces that play an essential role in virtually all materials and devices. Physics, chemistry, materials science and life sciences blend to encourage new, cross-pollinating ideas, which will drive forward our understanding of the processes at the interface.
Advanced Materials Interfaces covers all topics in interface-related research:
Oil / water separation,
Applications of nanostructured materials,
2D materials and heterostructures,
Surfaces and interfaces in organic electronic devices,
Catalysis and membranes,
Self-assembly and nanopatterned surfaces,
Composite and coating materials,
Biointerfaces for technical and medical applications.
Advanced Materials Interfaces provides a forum for topics on surface and interface science with a wide choice of formats: Reviews, Full Papers, and Communications, as well as Progress Reports and Research News.