ArticleAdvanced healthcare materials2023
Rapid and Facile Light-Based Approach to Fabricate Protease-Degradable Poly(ethylene glycol)-norbornene Microgels for Cell Encapsulation.
Article in Advanced healthcare materials, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.
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Who cites it
9 citing papers in PubMed.
- An innate defense regulator peptide modulates the inflamed pulp microenvironment and promotes pulp repair.Bioactive materials · 2026Article
- A microgel bone marrow model of mesenchymal stromal cell paracrine signaling supporting hematopoietic stem cell retention.Acta biomaterialia · 2026Article
- In Situ Photoactivated Hydrogel Adhesive Dressings for Post Colon Polypectomies (PolypCures).bioRxiv : the preprint server for biology · 2025Article
- A microgel bone marrow model of mesenchymal stem cell paracrine signaling supporting hematopoietic stem cell retention.bioRxiv : the preprint server for biology · 2025Article
- Granular Hydrogels as Brittle Yield Stress Fluids.Advanced materials (Deerfield Beach, Fla.) · 2025Article
- Colloidal-fibrillar composite gels demonstrate structural reinforcement, secondary fibrillar alignment, and improved vascular healing outcomes.Communications engineering · 2025Article
- Recent advances in bioactive hydrogel microspheres: Material engineering strategies and biomedical prospects.Materials today. Bio · 2025Review
- Gelatin maleimide microgels for hematopoietic progenitor cell encapsulation.Journal of biomedical materials research. Part A · 2024Article
- Facile Physicochemical Reprogramming of PEG-Dithiolane Microgels.Advanced healthcare materials · 2024Article
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4 authors.
Funding
Abstract
Thiol-norbornene photoclickable poly (ethylene glycol) (PEG)-based (PEG-NB) hydrogels are attractive biomaterials for cell encapsulation, drug delivery, and regenerative medicine applications. Although many crosslinking strategies and chemistries have been developed for PEG-NB bulk hydrogels, fabrication approaches of PEG-NB microgels have not been extensively explored. Here, a fabrication strategy for 4-arm amide-linked PEG-NB (PEG-4aNB) microgels using flow-focusing microfluidics for human mesenchymal stem/stromal cell (hMSCs) encapsulation is presented. PEG-4aNB photochemistry allows high-throughput, ultrafast generation, and cost-effective synthesis of monodispersed microgels (diameter 340 ± 18, 380 ± 24, and 420 ± 15 µm, for 6, 8, and 10 wt% of PEG-4aNB, respectively) using an in situ crosslinking methodology in a microfluidic device. PEG-4aNB microgels show in vitro degradability due to the incorporation of a protease-degradable peptide during photocrosslinking and encapsulated cells show excellent viability and metabolic activity for at least 13 days of culture. Furthermore, the secretory profile (i.e., MMP-13, ICAM-1, PD-L1, CXCL9, CCL3/MIP-1, IL-6, IL-12, IL-17E, TNF-α, CCL2/MCP-1) of encapsulated hMSCs shows increased expression in response to IFN-γ stimulation. Collectively, this work shows a versatile and facile approach for the fabrication of protease-degradable PEG-4aNB microgels for cell encapsulation.
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