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Nanoparticle-Film Plasmon Ruler Interrogated with Transmission Visible Spectroscopy.

Publication ,  Journal Article
Hill, RT; Kozek, KM; Hucknall, A; Smith, DR; Chilkoti, A
Published in: ACS photonics
October 2014

The widespread use of plasmonic nanorulers (PNRs) in sensing platforms has been plagued by technical challenges associated with the development of methods to fabricate precisely controlled nanostructures with high yield and characterize them with high throughput. We have previously shown that creating PNRs in a nanoparticle-film (NP-film) format enables the fabrication of an extremely large population of uniform PNRs with 100% yield using a self-assembly approach, which facilitates high-throughput PNR characterization using ensemble spectroscopic measurements and eliminates the need for expensive microscopy systems required by many other PNR platforms. We expand upon this prior work herein, showing that the NP-film PNR can be made compatible with aqueous sensing studies by adapting it for use in a transmission localized surface plasmon resonance spectroscopy format, where the coupled NP-film resonance responsible for the PNR signal is directly probed using an extinction measurement from a standard spectrophotometer. We designed slide holders that fit inside standard spectrophotometer cuvettes and position NP-film samples so that the coupled NP-film resonance can be detected in a collinear optical configuration. Once the NP-film PNR samples are cuvette-compatible, it is straightforward to calibrate the PNR in aqueous solution and use it to characterize dynamic, angstrom-scale distance changes resulting from pH-induced swelling of polyelectrolyte (PE) spacer layers as thin as 1 PE layer and also of a self-assembled monolayer of an amine-terminated alkanethiol. This development is an important step toward making PNR sensors more user-friendly and encouraging their widespread use in various sensing schemes.

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Published In

ACS photonics

DOI

EISSN

2330-4022

ISSN

2330-4022

Publication Date

October 2014

Volume

1

Issue

10

Start / End Page

974 / 984

Related Subject Headings

  • 5102 Atomic, molecular and optical physics
  • 0906 Electrical and Electronic Engineering
  • 0206 Quantum Physics
  • 0205 Optical Physics
 

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Hill, R. T., Kozek, K. M., Hucknall, A., Smith, D. R., & Chilkoti, A. (2014). Nanoparticle-Film Plasmon Ruler Interrogated with Transmission Visible Spectroscopy. ACS Photonics, 1(10), 974–984. https://doi.org/10.1021/ph500190q
Hill, Ryan T., Klaudia M. Kozek, Angus Hucknall, David R. Smith, and Ashutosh Chilkoti. “Nanoparticle-Film Plasmon Ruler Interrogated with Transmission Visible Spectroscopy.ACS Photonics 1, no. 10 (October 2014): 974–84. https://doi.org/10.1021/ph500190q.
Hill RT, Kozek KM, Hucknall A, Smith DR, Chilkoti A. Nanoparticle-Film Plasmon Ruler Interrogated with Transmission Visible Spectroscopy. ACS photonics. 2014 Oct;1(10):974–84.
Hill, Ryan T., et al. “Nanoparticle-Film Plasmon Ruler Interrogated with Transmission Visible Spectroscopy.ACS Photonics, vol. 1, no. 10, Oct. 2014, pp. 974–84. Epmc, doi:10.1021/ph500190q.
Hill RT, Kozek KM, Hucknall A, Smith DR, Chilkoti A. Nanoparticle-Film Plasmon Ruler Interrogated with Transmission Visible Spectroscopy. ACS photonics. 2014 Oct;1(10):974–984.
Journal cover image

Published In

ACS photonics

DOI

EISSN

2330-4022

ISSN

2330-4022

Publication Date

October 2014

Volume

1

Issue

10

Start / End Page

974 / 984

Related Subject Headings

  • 5102 Atomic, molecular and optical physics
  • 0906 Electrical and Electronic Engineering
  • 0206 Quantum Physics
  • 0205 Optical Physics