Fabrication of nanostructured Pt electrodes templated by nanoporous anodic alumina for electrochemical sensors
نویسندگان
چکیده
Abstract Although platinum electrodes are widely used in electrochemical sensors their functionality can be affected by formed components of complex biological fluids. We demonstrated a simple approach to the formation Pt nanopillars sandwiched between W metal layers and nanoporous anodic alumina membranes, anodization W/Al bilayers substitution WO 3 local under nanopores with Pt. By exploiting Pourbaix corrosion diagram W, we could find conditions that allow selective dissolution pH=7.4 buffer solution inside aluminum membrane via electroless deposition.
منابع مشابه
Development of Carbon Nanostructured Based Electrochemical Sensors for Pharmaceutical Analysis
Pharmaceutical drugs play an important role in human life since they caused a revolution in human health. Notably, their administration to a living organism helps body to stay healthy. Commonly, they are employed to diagnose, prevent, or treat and cure a disease via a biological effect on a human body. Administration of impurity-free and adequate amounts of pharmaceut...
متن کاملDirect fabrication of 3D graphene on nanoporous anodic alumina by plasma-enhanced chemical vapor deposition
High surface area electrode materials are of interest for a wide range of potential applications such as super-capacitors and electrochemical cells. This paper describes a fabrication method of three-dimensional (3D) graphene conformally coated on nanoporous insulating substrate with uniform nanopore size. 3D graphene films were formed by controlled graphitization of diamond-like amorphous carb...
متن کاملFabrication of ordered nanoporous anodic alumina prepatterned by mold-assisted chemical etching
In this article, a simple and cost-effective method to create patterned nanoindentations on Al surface via mold-assisted chemical etching process is demonstrated. This report shows the reaction-diffusion method which formed nanoscale shallow etch pits by the absorption/liberation behaviors of chemical etchant in poly(dimethylsiloxane) stamp. During subsequent anodization, it was possible to obt...
متن کاملDevelopment of Carbon Nanostructured Based Electrochemical Sensors for Pharmaceutical Analysis
Pharmaceutical drugs play an important role in human life since they caused a revolution in human health. Notably, their administration to a living organism helps body to stay healthy. Commonly, they are employed to diagnose, prevent, or treat and cure a disease via a biological effect on a human body. Administration of impurity-free and adequate amounts of pharmaceut...
متن کاملMolecular gated nanoporous anodic alumina for the detection of cocaine
We present herein the use of nanoporous anodic alumina (NAA) as a suitable support to implement "molecular gates" for sensing applications. In our design, a NAA support is loaded with a fluorescent reporter (rhodamine B) and functionalized with a short single-stranded DNA. Then pores are blocked by the subsequent hybridisation of a specific cocaine aptamer. The response of the gated material wa...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Japanese Journal of Applied Physics
سال: 2022
ISSN: ['0021-4922', '1347-4065']
DOI: https://doi.org/10.35848/1347-4065/ac51be