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Protocol for preparing cellulose-based aerogels in a deep eutectic solvent as surface-enhanced Raman scattering
Kaori Sánchez-Carrillo1, Sandeep Surendra Panikar2, Josué D Mota-Morales1
1Centro de Física Aplicada y Tecnología Avanzada, Universidad Nacional Autónoma de México, Querétaro 76230, Mexico.
STAR Protocols
|April 26, 2025
Summary
This study presents a new method for creating surface-enhanced Raman scattering (SERS) substrates. These substrates allow for the detection of trace amounts of substances in water, crucial for sensitive chemical analysis.
Area of Science:
- Analytical Chemistry
- Materials Science
- Nanotechnology
Background:
- Detecting analytes at low concentrations in complex samples is challenging.
- Surface-Enhanced Raman Scattering (SERS) offers high sensitivity for analyte detection.
- Development of robust and efficient SERS substrates is critical for various applications.
Purpose of the Study:
- To develop a protocol for preparing novel plasmonic aerogel SERS substrates.
- To enable the detection of aqueous analytes at ultralow molar concentrations.
- To provide a detailed procedure for substrate synthesis and measurement.
Main Methods:
- Synthesis of plasmonic aerogels using L-ascorbic acid as a reducing agent.
- Utilization of eutectic solvents as reaction media for aerogel formation.
- Detailed procedures for SERS measurements using the prepared substrates.
Main Results:
- Successful synthesis of plasmonic aerogels with SERS-active properties.
- Demonstrated capability of the substrates for detecting aqueous analytes in ultralow concentrations.
- The protocol provides a reliable method for creating sensitive SERS substrates.
Conclusions:
- The developed protocol offers an effective route to SERS substrates for sensitive analyte detection.
- Plasmonic aerogels synthesized via this method show promise for complex matrix analysis.
- This work contributes to advancements in trace analyte detection technologies.
