Self-Assembled Tamoxifen-Selective Fluorescent Nanomaterials Driven by Molecular Structural Similarity

Area of Science:

• Supramolecular chemistry
• Materials science
• Nanotechnology

Background:

• Traditional supramolecular system discovery relies heavily on trial-and-error.
• Developing selective guest encapsulation building blocks requires extensive synthetic efforts.
• A need exists for efficient strategies to create targeted supramolecular nanomaterials.

Purpose of the Study:

• To develop a simple coassembly strategy for tamoxifen-selective supramolecular nanomaterials.
• To enhance the solubility and dispersion of tamoxifen in aqueous solutions.
• To investigate the potential of these nanomaterials for cell imaging and anticancer applications.

Main Methods:

• Utilizing 1,1,2,2-tetraphenylethylene (TPE) as a synthetic amphiphile.
• Employing a coassembly strategy in aqueous solution.
• Analyzing tamoxifen aggregate disassembly and micellar assembly formation.
• Evaluating fluorescence enhancement upon tamoxifen interaction.
• Assessing anticancer effects against MCF-7 breast cancer cells.

Main Results:

• A simple coassembly strategy successfully prepared tamoxifen-selective supramolecular nanomaterials.
• TPE promoted tamoxifen aggregate disassembly, enhancing solubility and dispersion.
• The TPE moiety exhibited fluorescence enhancement upon tamoxifen interaction, enabling imaging.
• Tamoxifen-selective fluorescent micelles demonstrated enhanced tamoxifen absorption and anticancer effects.
• A 1:1 molar ratio of TPE derivative to tamoxifen was optimal for observed effects.

Conclusions:

• Coassembly of structurally similar building blocks offers a novel strategy for developing selective molecular carriers.
• This approach efficiently creates supramolecular nanomaterials with enhanced biological activities.
• The developed tamoxifen-selective nanomaterials show promise for targeted cancer therapy and imaging.