Publication detail

Plasmonic Self-Propelled Nanomotors for Explosives Detection via Solution-Based Surface Enhanced Raman Scattering

NOVOTNÝ, F. PLUTNAR, J. PUMERA, M.

Original Title

Plasmonic Self-Propelled Nanomotors for Explosives Detection via Solution-Based Surface Enhanced Raman Scattering

Type

journal article in Web of Science

Language

English

Original Abstract

Nanomotors represent a class of artificial machines that span the chasm between molecular motors and bigger micromotors. Their importance lies in the fact that to effectively navigate and perform tasks in a biological environment without alerting the action of the immune system, the maximal size of the object has to be well below 200 nm. Fully nanosized gold/silver core/shell plasmonic nanomotors using the seeded growth wet chemical approach, which allows high scalability of synthesis of the nanomotors compared to planar substrate-based methods, is presented. Using the nanoparticle tracking analysis, the catalysis driven enhanced diffusion of the plasmonic nanomotors in the presence of low concentrations of fuel is presented and shown that the prepared nanomotors are good candidates for a solution-based surface-enhanced Raman spectroscopy detection of picric acid, a typical explosive. In addition to the mentioned effects, ligand-exchange is performed on the nanomotors to replace the surfactant with its thiolated analog, a combination which is already proven in literature to be stealthy to the immune response of the living organism.

Keywords

core-shell nanoparticles; explosives sensing; nanomotors; picric acid; plasmonics; self-propulsion; surface-enhanced Raman scattering

Authors

NOVOTNÝ, F.; PLUTNAR, J.; PUMERA, M.

Released

1. 8. 2019

ISBN

1616-301X

Periodical

ADVANCED FUNCTIONAL MATERIALS

Year of study

29

Number

33

State

Federal Republic of Germany

Pages from

1903041

Pages to

1903041

Pages count

7

URL

https://onlinelibrary.wiley.com/doi/full/10.1002/adfm.201903041

BibTex

@article{BUT158503,
  author="Filip {Novotný} and Jan {Plutnar} and Martin {Pumera}",
  title="Plasmonic Self-Propelled Nanomotors for Explosives Detection via Solution-Based Surface Enhanced Raman
Scattering",
  journal="ADVANCED FUNCTIONAL MATERIALS",
  year="2019",
  volume="29",
  number="33",
  pages="1903041--1903041",
  doi="10.1002/adfm.201903041",
  issn="1616-301X",
  url="https://onlinelibrary.wiley.com/doi/full/10.1002/adfm.201903041"
}