title: Nanopillar array structures for enhancing biosensing performance.
abstract: Fabrication of metallic nanopillar array structures and their application as electrodes in electrochemical-based biosensors are discussed in this report. Vertically standing nanopillar array structures were fabricated using an electrodeposition technique and their electrochemical characteristics were evaluated. For possible use in biosensing applications, these standing nanopillars should have sufficient mechanical stability to sustain the capillary forces caused by the nanopillar-liquid interactions in aqueous environment and should provide increased signal response in an electrochemical process. Our results showed that the developed nanopillar arrays were mechanically stable in aqueous environments and the nanostructured electrodes exhibited increased electrochemical response compared with flat electrodes.
authors.affiliation: Micro/Nano Bioengineering Lab, Department of Biological and Agricultural Engineering, University of Georgia, Athens 30602, USA.
authors.forename: Venkataramani
authors.initials: V
authors.lastname: Anandan
authors.forename: Yeswanth L
authors.initials: YL
authors.lastname: Rao
authors.forename: Guigen
authors.initials: G
authors.lastname: Zhang
mesh_terms: D000537:Aluminum Oxide / Q000737:chemistry*; D015374:Biosensing Techniques / Q000295:instrumentation* / Q000379:methods; D004563:Electrochemistry / Q000295:instrumentation* / Q000379:methods; D004867:Equipment Design; D019544:Equipment Failure Analysis; D008422:Materials Testing; D008839:Microelectrodes; D036103:Nanotechnology / Q000295:instrumentation* / Q000379:methods; D043942:Nanotubes / Q000737:chemistry* / Q000648:ultrastructure*; D010316:Particle Size; D015203:Reproducibility of Results; D012680:Sensitivity and Specificity; D013499:Surface Properties
chemical_list: D000537:Aluminum Oxide