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Updated: Jul 9, 2025

Injectable Supramolecular Polymer-Nanoparticle Hydrogels for Cell and Drug Delivery Applications

Injectable Supramolecular Polymer-Nanoparticle Hydrogels for Cell and Drug Delivery Applications

Published on: February 7, 2021

Injectable cell-laden silk acid hydrogel.

Ziyang Sun¹, Haoran Liu¹, Dandan Dai¹

¹School of Engineering, Westlake University, Hangzhou, Zhejiang, 310023, China. guochengchen@westlake.edu.cn.

Chemical Communications (Cambridge, England)

|December 8, 2023

Summary

This summary is machine-generated.

This study introduces a new injectable silk acid hydrogel for biomedical uses. The silk acid hydrogel supports cell encapsulation and delivery, showing potential for tissue engineering and 3D cell culture.

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Area of Science:

Biomaterials Science
Biomedical Engineering
Regenerative Medicine

Background:

Silk fibroin, a natural protein, is a versatile biomaterial.
Developing advanced hydrogels for biomedical applications is crucial.
Silk acid, a derivative of silk fibroin, offers unique properties for hydrogel formation.

Purpose of the Study:

To develop an injectable cell-laden hydrogel system using silk acid.
To evaluate the cytocompatibility and injectability of the silk acid hydrogel.
To explore the potential applications of silk acid hydrogel in biomedicine.

Main Methods:

Silk acid was used to create a hydrogel via physical crosslinking.
Hydrogel formation was conducted under physiological conditions (37 °C, pH 7.4).
Cell encapsulation efficiency and hydrogel injectability were assessed.

Main Results:

The silk acid hydrogel was successfully synthesized under physiological conditions.
The hydrogel demonstrated excellent cytocompatibility, supporting cell viability.
Efficient cell encapsulation and good injectability of the hydrogel were achieved.

Conclusions:

Silk acid hydrogel is a promising injectable biomaterial.
The hydrogel system shows potential for 3D cell culture and targeted cell delivery.
Silk acid hydrogel holds transformative potential for tissue engineering applications.