Quintuple-modality (SERS-MRI-CT-TPL-PTT) plasmonic nanoprobe for theranostics

Area of Science:

• Biomedical Engineering
• Nanotechnology
• Materials Science

Background:

• Developing multifunctional nanoprobes is crucial for integrated diagnostic and therapeutic applications in medicine.
• Gold nanostars offer unique optical and physical properties suitable for multimodal imaging and therapy.

Purpose of the Study:

• To develop a novel quintuple-modality theranostic nanoprobe (QMT) for simultaneous imaging and therapy.
• To functionalize gold nanostars for enhanced Raman scattering (SERS), magnetic resonance imaging (MRI), computed tomography (CT), two-photon luminescence (TPL) imaging, and photothermal therapy (PTT).

Main Methods:

• Synthesized gold nanostars were surface-modified with a SERS reporter.
• Gold nanostars were conjugated with a Gadolinium (Gd3+) agent for MRI contrast.
• The resulting QMT nanoprobe was characterized and evaluated through in vitro experiments.

Main Results:

• The developed QMT nanoprobe successfully integrated five modalities: SERS, MRI, CT, TPL imaging, and PTT.
• In vitro studies confirmed the nanoprobe's potential as a theranostic agent.
• The gold nanostar core facilitated multiple functionalities within a single nanostructure.

Conclusions:

• A unique quintuple-modality theranostic nanoprobe (QMT) based on gold nanostars has been successfully developed.
• The QMT nanoprobe demonstrates significant potential for advanced biomedical theranostic applications.
• Further in vitro validation supports its future use in clinical settings.