Full description
Attached file provides supplementary data for linked article. We demonstrate an active microfluidic platform that integrates dielectrophoresis for the control of silver nanoparticles spacing, as they flow in a liquid channel. By careful control of the nanoparticles spacing, we can effectively increase the surface-enhanced Raman scattering (SERS) signal intensity based on augmenting the number of SERS-active hot-spots, while avoiding irreversible aggregation of the particles. The system is benchmarked using dipicolinate (2,6-pyridinedicarboxylic acid) (DPA), which is a biomarker of Bacillus anthracis. The validity of the results is discussed using several complementing characterization scenarios. Subjects
Active control |
Bacillus anthracis |
Electrical and Electronic Engineering |
Engineering |
Electrical and Electronic Engineering Not Elsewhere Classified |
Hotspots |
Irreversible aggregation |
Liquid channels |
Microfluidic platforms |
Signal intensities |
Silver nanoparticles |
Surface enhanced Raman Scattering (SERS) |
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Identifiers
- Local : 766643db3ef24ef356d50f54e8112dc1