BERKELEY SENSOR & ACTUATOR CENTER
UC BERKELEY UC DAVIS
User: Guest |  Site Map |  My BSAC Profile
HOME  PROJECTS  THRUSTS  PUBLICATIONS  ABOUT BSAC  DIRECTORY  ALUMNI  FOR BSAC RESEARCHERS  EVENTS CALENDAR  SECURE LOGIN
Lee
     
 Lee
 Lin
 Wu
 

BPN536: Absorptive h-PDMS Plasmonic Nanopillars: A Replicable Substrate for Generating High SERS Signals by Chemical Concentration

Project ID BPN536
Website
Start Date Thu 2010-Jan-28 19:46:34
Last Updated Tue 2010-Aug-31 11:53:25
Abstract This project addresses the utilization of Chemically Absorptive Nanopillars as a new, economical substrate to concentrate molecules and generate huge SERS enhancement. Experimental tests were conducted to demonstrate the absorptive property of the PDMS substrate, which concentrates target molecules around localized areas for enhanced SERS detection. Evidence of molecular concentration was demonstrated by monitoring the increasing fluorescence intensity of 1,2- bis(4-pyridyl) ethylene (BPE) as the molecules concentrate along the edge of an h-PDMS microfluidic channel. The SERS signal from our substrate was compared to the signal from substrates with less absorptive materials (glass), and demonstrated to have far superior performance. Our goal is to demonstrated that PDMS substrates can 1) collect more analyte by absorption, 2) demonstrate high SERS sensitivity for detection of analytes in femtomolar concentration, and 3) have reliable replication of identical structures, compared to conventional top-down or bottom-up fabrication techniques. This study will provide a simple, yet versatile SERS-substrate-integrated microfluidic platform.
Status New
Funding Source DARPA
IAB Research Area NanoPlasmonics, Microphotonics & Imaging
Researcher(s) Eric Lee, SoonGweon Hong, Brendan Turner
Advisor(s) Luke P. Lee
Detailed Information
Secure Access

Private Abstract
Research Report
Poster
Summary Slide PDF | VIDEO
Can’t view video click here
Active Feedback (or Request for Response)

 

  • Copyright Notification: All papers downloaded from this site are © University of California or the publisher, all rights reserved. Contact the BSAC Webmaster for permission related to copyrighted materials.
  • Links on these pages to commercial sites do not represent endorsements by UC or its affiliates.
  • Privacy Policy
  • Contact Us

   webmaster@bsac.eecs.berkeley.edu
  User logged in as: Guest
  User Idle since: October 24, 2014, 5:41 pm