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An Additive Manufacturing Technique for the Facile and Rapid Fabrication of Hydrogel-based Micromachines with Magnetically Responsive Components
Published on: July 18, 2018
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Multifunctional Hydrogel with 3D Printability, Fluorescence, Biodegradability, and Biocompatibility for Biomedical
Gang Wang1,2, Sisi Wang1, Tao Hu1
1School of Physics and Electronic Science, Guizhou Normal University, Guiyang 550025, China.
Molecules (Basel, Switzerland)
|July 27, 2024
Summary
Researchers developed a novel multifunctional hydrogel for biomedical microrobots. This 3D-printable, biodegradable hydrogel offers customizability, magnetic motion control, and excellent biocompatibility for advanced drug delivery and surgery.
Area of Science:
- Biomaterials Science
- Nanotechnology
- Regenerative Medicine
Background:
- Microrobots hold promise for biomedical applications like targeted drug delivery and minimally invasive surgery.
- Key requirements for clinical viability include customizability, motion control, imageability, biodegradability, and biocompatibility.
- Developing advanced materials is crucial to meet these microrobot performance demands.
Purpose of the Study:
- To develop a multifunctional hydrogel integrating customizability, 3D printability, motion controllability, drug delivery capacity, fluorescence imageability, biodegradability, and biocompatibility.
- To demonstrate the potential of this hydrogel for advanced biomedical microrobot applications.
Main Methods:
- Fabrication of a gelatin methacryloyl (GelMA) and (2-(4-vinylphenyl)ethene-1,1,2-triyl)tribenzene (TPEMA)-based hydrogel.
- Utilizing 3D direct laser writing for customizable microstructure fabrication.
- Decorating spherical microrobots with magnetic nanoparticles for magnetic responsiveness.
- Assessing drug loading/release, degradability (collagenase), fluorescence properties, and cytotoxicity.
Main Results:
- The hydrogel demonstrated 3D printability, enabling custom microstructure fabrication via direct laser writing.
- Magnetically responsive microrobots exhibited excellent movement performance and motion controllability.
- Hydrogel microstructures showed efficient drug loading/release capacity and degradability with stable fluorescence.
- Cytotoxicity assays confirmed the hydrogel's non-toxicity and ability to support cell growth, indicating excellent biocompatibility.
Conclusions:
- The developed multifunctional hydrogel successfully integrates key features for advanced biomedical microrobots.
- This material shows significant potential for realizing in vivo biomedical applications of microrobots.
- The hydrogel's properties support customizability, precise motion control, drug delivery, imaging, and biocompatibility.
