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Coding cell micropatterns through peptide inkjet printing for arbitrary biomineralized architectures
Jin Guo1, Shengjie Ling1, Wenyi Li1
1Department of Biomedical Engineering, Tufts University, MA 02155, USA.
Advanced Functional Materials
|May 23, 2020
Summary
Researchers engineered functional micropatterns for cell alignment using peptide inkjet printing and biomineralization. This novel method creates cost-effective, customizable biomaterials for biomedical applications.
Area of Science:
- Biomaterials Engineering
- Tissue Engineering
- Nanotechnology
Background:
- Native tissue micropatterns are complex, involving extracellular matrix, cell types, and mechanical properties.
- Creating intricate micropatterns in vitro for biomedical use presents significant design and fabrication challenges.
Purpose of the Study:
- To develop a de novo strategy for coding and synthesizing functional micropatterns.
- To engineer cell alignment using a novel integration of peptide inkjet printing and site-specific biomineralization.
Main Methods:
- Aqueous-peptide inkjet printing was used to create R5 peptide patterns on silk hydrogels with micrometer resolution.
- Site-specific biomineralization of the R5 peptide facilitated silica nanoparticle growth on micropatterns without harsh chemicals.
Main Results:
- Successfully engineered functional micropatterned systems capable of aligning human mesenchymal stem cells and bovine serum albumin in vitro.
- Demonstrated the ability to code cell micropatterns for arbitrary biomineralized architectures.
Conclusions:
- The combination of peptide printing and biomineralization offers a new, cost-effective route for developing advanced micropatterns.
- This approach has implications for broader materials design and task-specific biomedical applications.
