Nanoarrays SERS substrates

Novel Nanoarray SERS Substrates Used for High Sensitivity Virus Biosensing and Classification... 

Other recent materials created using these ordered arrays include porous nickel phosphide film for lithium ion batteries, porous aluminum films for lithium electrodeposition, macroporous silicon films for optics, cobalt metal nanoarrays of various morphologies for biomedicine," macro-/ nanoporous gold films for electrocatalysis, " silver bowls as SERS substrates, and complex macroporous gold and polypyrrole films. ... 

Porous anodic aluminum oxide (AAO) which characterized by a closely packed regular array of columnar cells is well-established and widely-used material for formation of nanostructures for SERS [2,3]. Particularly, promising SERS-active substrates were prepared by vacuum deposition of silver onto commercially available alumina filters with open pores of 200-300 nm diameters [4], Nanowires and nanorods have been fabricated by filling the AAO pores with transition- or noble-metals. However, due to multistage procedure these nanoarrays being sensitive are rather complicated in fabrication. 

---