Programming viscoelastic properties in a complexation gel
Apr 26, 2024 · Overall, the viscoelastic properties of the guest-host complexation gel composite system can be quantitatively tuned in a broad range, ranging from tough gel to ultrasoft gel, and from...
Viscoelastic behaviors for optimizing self-healing of gels with host ...
Sep 11, 2024 · This study examined how changing the water-glycerol solvent composition affects the self-healing and viscoelastic properties of self-healing gels, which have host-guest inclusion complexes as ...
Viscoelastic Supramolecular Hyaluronan-Peptide Cross-Linked …
Jul 8, 2024 · The stiffness of the gel correlated with hydrogen bonding between the peptide chains. These gels are cytocompatible: highly viscoelastic gels that mimic the native skin microenvironment promote dermal fibroblast cell spreading. Moreover, HA-peptide gels enabled cell encapsulation, as shown with primary human T cells.
Control of cell morphology and differentiation by substrates …
Jan 31, 2018 · The characterization of fibroblast phenotype on viscoelastic gels shows that substrate stress relaxation reduces cell stiffness and projected area when cells are attached to the crosslinked ...
Viscoelastic and phototunable GelMA-alginate hydrogels for 3D …
Feb 28, 2024 · In this study, we developed a biocompatible 3D viscoelastic interpenetrating network (IPN) hydrogel that can be stiffened (increasing in elastic modulus from ~ 1 to ~ 18 kPa) over time. Our approach utilizes a dual-crosslinking strategy.
High-Strain-Rate Behavior of a Viscoelastic Gel Under High …
Aug 12, 2020 · We measure microparticle trajectories and extract both maximum and final penetration depths for a range of particle sizes, velocities, and gel concentrations. We propose a modified Clift-Gauvin model and demonstrate that it adequately describes both individual trajectories and penetration depths.
Experiments and modeling of the viscoelastic behavior of polymeric gels ...
Apr 1, 2020 · A polymeric gel is a cross-linked polymer network swollen with a solvent. Also, as is well known many polymeric materials exhibit viscoelastic behavior in their mechanical response. In this work, we report on our recent experimental observations and theoretical modeling involving the change in the viscoelastic response of the polymeric material ...
Rheological Considerations of Pharmaceutical Formulations: Focus …
Jun 7, 2023 · Viscoelastic properties, including elastic and viscous properties, are measured using oscillatory rheology. The gel strength and elasticity of hydrogels are of great importance for pharmaceutical development as the application of viscoelastic preparations has considerably expanded in recent decades.
Engineering the viscoelasticity of gelatin methacryloyl (GelMA ...
Jul 1, 2023 · A strategy via “small dynamic bridges'’ to construct viscoelastic hydrogels with independent storage modulus and loss modulus is proposed. The hydrogels has good injectability, self-healing properties, and excellent mechanical and adhesiveness properties.
Viscoelastic Properties of Physical Gels Formed by Associative ...
Mar 28, 2002 · We report on the viscoelastic response of a physical gel formed in aqueous solutions of poly(sodium acrylate) end-capped with short polystyrene (PS) blocks. Above a percolation threshold ( c gel = 0.2 wt %) a transient network is formed constituted of PS hydrophobic domains (cross-links) interconnected via fully charged polyelctrolyte chains.