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Related Concept Videos

Atomic Force Microscopy01:08

Atomic Force Microscopy

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Atomic force microscopy (AFM) is a type of scanning probe microscopy that can analyze topographic details of various specimens like ceramics, glass, polymers, and biological samples. AFM offers over 1000 times more resolution than the optical imaging system. Images generated from AFM are three-dimensional surface profiles, offering an advantage over the flat, two-dimensional images from other imaging techniques.
The AFM Probe
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A conventional Raman spectrophotometer includes a laser source, a sample holding system, a wavelength selector, and a detector.
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Tip Recycling for Atomic Force Microscopy-Based Tip-Enhanced Raman Spectroscopy.

Giovanni Luca Bartolomeo1, Guillaume Goubert1, Renato Zenobi1

  • 1Department of Chemistry and Applied Biosciences, Swiss Federal Institute of Technology (ETH) Zurich, Zurich, Switzerland.

Applied Spectroscopy
|March 14, 2020
PubMed
Summary
This summary is machine-generated.

This study introduces a cleaning method to reuse silver-coated atomic force microscopy-tip-enhanced Raman spectroscopy (AFM-TERS) probes. This approach significantly cuts costs and reduces waste associated with TERS experiments.

Keywords:
AFMTERSTip-enhanced Raman spectroscopyatomic force microscopymetal etchingtip fabrication

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Area of Science:

  • Nanotechnology
  • Surface Science
  • Spectroscopy

Background:

  • Tip-enhanced Raman spectroscopy (TERS) provides high-resolution chemical and topographical information.
  • Atomic force microscopy (AFM)-TERS is versatile, operating in various environments.
  • Silver (Ag) coated AFM tips are crucial for plasmonic enhancement in TERS.

Purpose of the Study:

  • To develop a reliable method for reusing silver-coated AFM-TERS probes.
  • To address the challenges of tip metallization and probe lifetime.
  • To reduce material waste and experimental costs.

Main Methods:

  • Established a cleaning routine for Ag-coated AFM-TERS probes.
  • Evaluated the reusability of probes after cleaning.
  • Assessed the impact of the cleaning process on enhancement factors and data quality.

Main Results:

  • Demonstrated effective re-use of Ag-coated AFM-TERS probes through a cleaning routine.
  • Significantly reduced the cost and material waste associated with probe preparation.
  • Maintained high-quality experimental results after probe reuse.

Conclusions:

  • A novel cleaning protocol enables the effective reuse of Ag-coated AFM-TERS probes.
  • This method offers a cost-effective and sustainable solution for TERS applications.
  • The reusability of probes does not compromise the integrity of nanoscale chemical characterization.