Low viscosityHigh-temperature resistantPlugging selectivityInjecting rateSteam channeling and bottom water fingering are unfavorable factors affecting the heavy oil thermal recovery, and plugging system is generally used to control steam channeling and bottom water fingering. In this paper, a composite ...
4a). Further increasing the solid content resulted in high viscosity and fast gelation, which may impair the injectability. We further investigated the influence of environmental variables on gelation time of ICAA hydrogel, including temperature, pH levels, ionic strength (Supplementary Fig. 4b–d)....
They could be easily transformed into injectable liquid with appropriate viscosity by tuning temperature, and quickly solidified at room temperature to fix the shape. Herein the conductive hydrogels were fully swollen in distilled water and then heated up to transform into flow sol which was printed ...
The viscosity test was measured with a range of shear rate from 0.1–50 rad s−1 62. Inject hydrogel with X-RAY guidance A rabbit cadaver was obtained from Animal Technologies (TX, USA). Before surgery, the animal leg was shaved and disinfected. After that the knee joint of ...
performed an intracranial injection of a hyaluronic acid (HA) low viscosity hydrogel (LVH) carrying CAR T cells to treat glioblastoma in mice [21]. Delivery was improved using a technique called convection enhanced delivery (CED), which improves drug distribution by creating a positive pressure ...
The new design introduces a pre-gel state during hydrogel preparation, where mixed solution exhibit increased viscosity, allowing the pre-gel to remain in a semi-solid condition (Figure S1 a). This pre-gel state before crosslinking granted more hydrogel administration routes, which brings hydrogels...
symmetrically hollowed out from its center. This aluminum foil piece is also attached to the Scotch tape, positioned at the edge of the hydrogel, effectively enclosing it. The entire sensor is then inverted onto a leaf and securely affixed to measure RWC using the viscosity of the Scotch tape...
viscosity in continuous flow at a ramped shear rate from 5 to 50 s−1. Strain sweeps ranging from 5 to 50 rad s−1at a 1% amplitude. To demonstrate the low-temperature printability of hydrogels, the G’ and G’’ values were measured from 5–45 °C. To test the photosensitive ...
In general, chitosan has a very large molecular weight (about 300 to 1000 kDa), and thus, solubility thereof in a solvent such as water is very low, and viscosity thereof is high. On the other hand, rather than the case of having a low viscosity and high solubility, since properties su...
or as two or more component systems that can be mixed prior to or during delivery, or at the site of repair. Generally such biomaterials are flowable in their uncured form, meaning they are of sufficient viscosity to allow their delivery through a cannula of on the order of about 2 mm ...