Polymer gels that exhibit a change in volume in response to a small change in an environmental parameter such as temperature have been fabricated and studied for several decades. We have developed gels that change volume in response to an applied alternating magnetic field. These gels could serve as actuators in servomechanisms. This paper presents practical techniques for using closed-loop fee...

Intelligent ion gels, which possess highly tunable mechanical, electrical, and stimulus-responsive properties, have emerged as powerful candidates in the field of artificial intelligence, telemedicine, health monitoring. To enrich functionality it is critical to explore link between structure function gels. In this review, we provide an overview synthesis path functional derivatives The conform...

The concept of the ideal elastomeric gel is extended to polyelectrolyte gels and verified using a polyacrylamide-co-acrylic acid hydrogel as a model material system. A comparison between mixing and ion osmosis shows that the mixing osmosis is larger than the ion osmosis for small swelling ratios, while the ion osmosis dominates for large swelling ratios. We show further that the non-Gaussian ch...

BACKGROUND Polyacrylamide gels, containing a hydrogel composed of polyacrylamide and water, are used for soft tissue augmentation and contour correction. There are no reports of significant complications after injection of this material into the face. OBJECTIVE We report an inflammatory reaction after injection of polyacrylamide gels for zygomatic facial augmentation. METHODS A retrospectiv...

A new theory for polymer gels is developed on the basis of the single-chain mean-field (SCMF) theory. This theory takes the mesh chain or the star polymer as the characteristic unit of polymer gels, and it allows the study of chain conformation properties for gels in their different states. The preparation condition effect is conveniently described by the current theory, and the gels with compl...

Alginates are polysaccharides that are widely used in relation to their ability to form gels. Recently we reported that alginates may also form gels with chitosan oligomers as crosslinkers (Khong, Aarstad, Skjåk-Bræk, Draget, & Vårum, 2013). The purpose of the present study was to characterize alginate gels crosslinked with calcium and chitosan oligomers. Using two different alginates of simila...

Smart gels have a variety of applications, including tissue engineering and controlled drug delivery. Here we present a modular, bottom-up approach that permits the creation of protein-based smart gels with encoded morphology, functionality, and responsiveness to external stimuli. The properties of these gels are encoded by the proteins from which they are synthesized. In particular, the streng...

Supramolecular polymer gels show promise for use in batteries, supercapacitors, and multifunctional sensors. However, their poor stiffness ionic conductivity hinder large-scale utilization. Here, a cellulose-based supramolecular bio-polymer gel (SBPG) with high exceptional is reported. These properties have been translated into proof-of-concept iontronic pressure sensors an ultra-high sensitivi...

Colloidal Gels In article 2300122, Lin and co-workers show that polyurethane based colloidal gels provide synchronized mechanomorphological guidance for the aggregation organization of cells to control their functional state in 3D microenvironment. Chondrogenesis mesenchymal stem network formation endothelial are promoted on these gel matrices.