ArticleACS biomaterials science & engineering2026
Fiber-Based Hydrogels for Designing Viscoelastic Responses in Particle-Based Biomaterials That Support Embedded 3D Printing.
Article in ACS biomaterials science & engineering, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
Viscoelastic biomaterials that exhibit biomimetic responses to applied stresses are important in studying physiology and designing biomaterial scaffolds. Particle-based hydrogels offer potential for engineering viscoelasticity through the design of both the component microparticles and their processing into bulk particle-based materials. When particles are not cross-linked to one another, particle movements in response to strain can potentially relieve applied stresses and facilitate the material's use in dynamic processes like bioprinting. In particle-based hydrogels based on spherical hydrogel microparticles (HMPs), particle movement is restricted by contact with immediately adjacent HMPs. In comparison, fiber-based hydrogel systems leverage high-aspect-ratio microfiber components with long-range interactions. Here, microfibers with aspect ratios of ∼15:1 length/diameter are used to form particle-based hydrogels to compare how interparticle interactions at increased length scales alter properties compared to particle-based hydrogels based on spherical HMPs. Like particle-based hydrogels formed from spherical HMPs, those formed from fiber HMPs exhibit viscoelasticity with shear-thinning and self-healing behaviors. But fiber-based materials allow enhanced control over bulk stress relaxation times (
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