We develop soft and stretchable fatigue-resistant hydrogel optical fibers that enable optogenetic modulation of peripheral nerves in naturally behaving animals during persistent locomotion. The formation of polymeric nanocrystalline domains within the hydrogels yields fibers with low optical losses of 1.07 ...
However, knowledge of hydrogel fatigue behavior remains notably deficient. Here, we present a brief overview of the fatigue behavior of hydrogels, encompassing the general experimental methods to measure the fatigue property and fundamental theoretical calculation models. Then, we highlight multiple ...
we propose a type of hydrogel network made of picot fibres, in which the hidden length and ability to dissipate energy are both integrated into the picot fibres (Fig.1b). The picot fibres are made of long flexible polymers decorated with self-assembling peptides. Driven by the self-assembly...
In addition, the hydrogel also possesses notch insensitivity with a fracture energy of 12000 J m-2 . After combining the conductivity of RGO aerogel, the hydrogel/RGO composites show good strain sensitivity with high reliability and self-healing ability, which has certain significance in broadening ...
However, knowledge of hydrogel fatigue behavior remains notably deficient. Here, we present a brief overview of the fatigue behavior of hydrogels, encompassing the general experimental methods to measure the fatigue property and fundamental theoretical calculation models. Then, we highlight multiple ...
We demonstrate the principle by embedding fibers of a polydimethylsiloxane (PDMS) elastomer into a matrix of a polyacrylamide (PAAm) hydrogel. We choose these materials mainly because they fulfill the basic requirements and are easy to fabricate in our laboratory, letting us test Concluding remarks ...
Our study highlights the unique possibility of tailoring hydrogel network structures at the molecular level to improve their mechanical performance.#Although hydrogels are increasingly used in a number of applications, it is still challenging to design materials with suitable mechanical ...
Flexible and fatigue-resistant optical fibers made from hydrogel allow optogenetic manipulations in the periphery in freely behaving mice.doi:10.1038/s41592-023-02020-9Liu XinyueMassachusetts Institute of TechnologyRao SiyuanResearch Laboratory of ElectronicsChen WeixuanFelix KaylaNi JiahuaSahasrabudhe Atharv...
The tensile strength, compressive strength, and fatigue threshold of the anisotropic hydrogel were up to 11.82 ± 0.85 MPa, 5.95 ± 0.35 MPa, and 1845 J m 2 , respectively, which were significantly higher than those of most biogels and synthetic hydrogels. Therefore, this research provides a ...
Drawing inspiration from natural materials, a new practical strategy for fabricating strong, tough and fatigue resistant hydrogels is reported by compositing modulus-contrasting, but compositionally similar, hydrogel fibers and matrix together. The strategy is generalizable to various fabrication methods such...