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Related Experiment Video

Updated: Apr 15, 2026

Author Spotlight: Development and Application of SERS Flexible Substrates Using Synthesized AgNPs

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Published on: November 17, 2023

Versatile SERS sensing based on black silicon.

Gediminas Seniutinas, Gediminas Gervinskas, Roli Verma

|April 4, 2015

Summary

This summary is machine-generated.

Black silicon (b-Si) with metal coatings offers a versatile surface-enhanced Raman scattering (SERS) platform. Functionalized coatings enable selective sensing and enhanced sensitivity for detecting analytes like tetracycline.

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Last Updated: Apr 15, 2026

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Area of Science:

Materials Science
Analytical Chemistry
Nanotechnology

Background:

Black silicon (b-Si) coated with gold or silver is an effective substrate for surface-enhanced Raman scattering (SERS).
The versatility of b-Si as a SERS platform is limited by its susceptibility to aging and the need for diverse surface functionalizations.

Purpose of the Study:

To demonstrate the versatility of metal-coated b-Si as a SERS platform through various surface functionalizations.
To develop novel sensing modalities using molecularly imprinted polymer (MIP) and hydrophobic coatings on b-Si for enhanced SERS analysis.

Main Methods:

Fabrication of gold-coated b-Si substrates.
Application of a molecularly imprinted polymer (MIP) coating for selective analyte recognition.
Development of a hydrophobic coating to concentrate analytes on gold nanoparticles for enhanced SERS measurements.

Main Results:

Selective sensing of two closely related tetracycline varieties was achieved using a MIP layer on Au-coated b-Si.
A hydrophobic coating significantly increased SERS measurement sensitivity by concentrating analytes adsorbed on gold colloidal nanoparticles.
Analyte concentration was achieved by drop-drying mixed Au nanoparticles and analyte onto a super-hydrophobic b-Si surface.

Conclusions:

Functionalized metal-coated b-Si substrates offer a versatile and robust platform for SERS applications.
MIP and hydrophobic coatings provide effective strategies for selective and sensitive SERS detection, respectively.
These approaches mitigate issues related to the aging of bare plasmonic metal-coated substrates, promising for practical SERS sensing.