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Initiatives

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Whether installing on pipes or vessels, Cryogel Z has a much shorter learning curve than rigid cryogenic insulation. It is ideal for any apprentice or journeyman who is looking to add another skill to their toolbox. Effects of calcium hydroxide, CP, and CP neutralized with catalase were tested. To evaluate the effect of individual compositions, 1 × 10 5 MRSA cells from overnight-grown cultures were exposed to 0.1% calcium hydroxide or CP, equivalent to the amount loaded in cryogel samples. Additionally, bovine catalase (200–500 units) was used along with CP. The response in terms of cell density (i.e., absorbance at 562 nm) was monitored for 24 h and the average values were plotted (n = 5). Assessment of antibacterial action of CP-containing cryogelsIt has been suggested that cryogels are more suitable for this application, as opposed to hydrogels, as a greater number of cells can be contained within the structure. With an exemption for injectable supramolecular hydrogel systems, which have been demonstrated to perform very well even after injection [ 74– 76], hydrogels in general have been cited as being too brittle to enable injection [ 27]. Injectable cryogels have been investigated as scaffolds, for drug delivery, and for wound-healing applications. Here we highlight recent advances in the development of these injectable systems relevant to the applications discussed. Wang, W.; Liu, Y.; Wang, S.; Fu, X.; Zhao, T.; Chen, X.; Shao, Z. Physically cross-linked silk fibroin-based tough hydrogel electrolyte with exceptional water retention and freezing tolerance. ACS Appl. Mater. Interfaces 2020, 12, 25353–25362. [ Google Scholar] [ CrossRef] Huang, W.; Ling, S.; Li, C.; Omenetto, F.G.; Kaplan, D.L. Silkworm silk-based materials and devices generated using bio-nanotechnology. Chem. Soc. Rev. 2018, 47, 6486–6504. [ Google Scholar] [ CrossRef] S. He, D. Huang, H. Bi, Z. Li, H. Yang and X. Cheng, Synthesis and characterization of silica aerogels dried under ambient pressure bed on water glass, J. Non-Cryst. Solids, 2015, 410, 58–64 CrossRef CAS .