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Fast electrically assisted regeneration of on-chip SERS substrates

: Meier, T.-A.; Poehler, Elisabeth; Kemper, F.; Pabst, Oliver; Jahnke, Heinz-Georg; Beckert, Erik; Robitzki, Andrea Anneliese; Belder, Detlev


LAB on a chip 15 (2015), Nr.14, S.2923-2927
ISSN: 1473-0197
ISSN: 1473-0189
Fraunhofer IOF ()

A microfluidic chip approach utilising integrated electrically connected stationary SERS targets based on inkjet-printed silver nanoparticles is presented. It enables multiple interference-free consecutive surface-enhanced Raman measurements inside chip channels by electrically assisted regeneration of the stationary SERS substrate. Thereby it circumvents common adsorption and memory effect problems associated with stationary SERS targets allowing multiple consecutive measurements in a continuous-flow system.