Utilizing 3D SERS Active Volumes in Aligned Carbon Nanotube Scaffold Substrates

A structurally tunable 3D surface enhanced Raman scattering (SERS) substrate based on vertically aligned carbon nanotubes (CNTs) sputter-coated with a gold film is described. This substrate shows highly sensitive SERS signals at very low target concentrations of 4-mercaptophenol (4-MPH), down to 10 fM. Detailed facts of importance to specialist readers are published as ”Supporting Information”. Such documents are peer-reviewed, but not copy-edited or typeset. They are made available as submitted by the authors. Please note: The publisher is not responsible for the content or functionality of any supporting information supplied by the authors. Any queries (other than missing content) should be directed to the corresponding author for the article.