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Related Experiment Video

Updated: May 23, 2026

ECM Protein Nanofibers and Nanostructures Engineered Using Surface-initiated Assembly

ECM Protein Nanofibers and Nanostructures Engineered Using Surface-initiated Assembly

Published on: April 17, 2014

Single-cell coating with biomimetic extracellular nanofiber matrices.

Slgirim Lee¹, James K Carrow¹, Lewis A Fraser¹

¹Simpson Querrey Institute for BioNanotechnology, Northwestern University, Chicago, IL 60611, United States.

Acta Biomaterialia

|February 8, 2024

Summary

Researchers developed a novel method to coat single cells with biomimetic nanofibers. This peptide amphiphile (PA) coating enhances cell survival and targeting for cell therapies without altering cell function.

Keywords:

Artificial extracellular matrices Peptide amphiphiles Regenerative medicine Regulatory T cells Single cell coating Supramolecular scaffolds

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Area of Science:

Biomaterials Science
Cell Therapy Engineering
Nanotechnology

Background:

Clinical application of cell therapies is hindered by challenges in cell survival, functional performance, and targeted delivery.
Existing methods often struggle to maintain native cell phenotype and function post-treatment.

Purpose of the Study:

To develop a biocompatible method for coating individual cells with a biodegradable nanofiber matrix.
To enhance cell survival, targeting, and overall efficacy in cell-based therapies.

Main Methods:

Self-assembly of peptide amphiphile (PA) molecules into supramolecular nanoscale filaments.
Application of PA nanofibers to coat various cell lineages with high efficiency.
In vitro assessment of coated human primary regulatory T (hTreg) cells displaying a vascular cell adhesion protein 1 (VCAM-1) targeting motif.

Main Results:

Achieved nearly 100% efficiency in coating diverse cell types with PA nanofibers.
Demonstrated that the nanofiber coating did not negatively impact cellular phenotype or natural functions.
Confirmed targeting capabilities of PA-coated hTreg cells using a VCAM-1 motif.

Conclusions:

The PA nanofiber coating is a biocompatible and effective strategy for single-cell modification.
This approach shows significant potential to overcome key limitations in current cell therapy applications.
The method preserves cellular integrity and function, paving the way for improved therapeutic outcomes.