{"id":370337,"date":"2021-11-19T20:17:44","date_gmt":"2021-11-19T17:17:44","guid":{"rendered":"https:\/\/en.buradabiliyorum.com\/researchers-prepare-dual-stimulus-responsive-alginate-hydrogel\/"},"modified":"2021-11-19T20:17:44","modified_gmt":"2021-11-19T17:17:44","slug":"researchers-prepare-dual-stimulus-responsive-alginate-hydrogel","status":"publish","type":"post","link":"https:\/\/buradabiliyorum.com\/en\/researchers-prepare-dual-stimulus-responsive-alginate-hydrogel\/","title":{"rendered":"#Researchers prepare dual stimulus responsive alginate hydrogel"},"content":{"rendered":"

“#Researchers prepare dual stimulus responsive alginate hydrogel<\/strong>”<\/p>\n

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\n The deformation mechanism of alginate hydrogel. Credit: LICP
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Stimuli-responsive hydrogels not only express excellent biocompatibility, but also can respond when exposed to external stimulation, enabling a wider range of app<\/a>lications in biomedicine. However, at present, stimuli-responsive hydrogel shows poor mechanical properties and limited response to a single stimulus. There is a great need for stimuli-responsive hydrogels with excellent mechanical properties and capability to respond to multiple stimuli.\u00a0\u00a0<\/p>\n

A\u00a0team led by Wang Qihua and Wang Tingmei from the Lanzhou Institute of Chemical Physics (LICP) of the Chinese Academy of Science<\/a>s recently has\u00a0issued a report on four dimensional (4D) printing of dual-stimuli response alginate hydrogel.<\/p>\n

According to the researchers, these hydrogel structures were directly printed with high structural accuracy, following which the hydrogels were immersed in Ca2+<\/sup> solution and chitosan solution respectively. The 4D printed hydrogels were able to perform step-wise volume contraction. \u00a0<\/p>\n

The soaking strategy adopted was able to not only achieve step-wise volume contraction of the sodium alginate structure, but also continuous enhancement of the mechanical properties of alginate hydrogel with continuous immersion in two solutions.<\/p>\n

The printed structures were able to be used for loading-unloading experiments\u00a0five times and support an object which weighs 361 times its own weight.\u00a0<\/p>\n

This research was\u00a0published in ACS Applied Polymer Materials<\/i>\u00a0and was supported by the National Natural Science Foundation of China, the Chinese Academy of Sciences and Qingdao University.\u00a0<\/p>\n\n

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Making stretchable and self-healable hydrogel artificial skin possible\n <\/p><\/div>\n

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\n More information:<\/strong>
\n Pengrui Cao et al, 4D Printing of a Sodium Alginate Hydrogel with Step-Wise Shape Deformation Based on Variation of Crosslinking Density, ACS Applied Polymer Materials<\/i> (2021). DOI: 10.1021\/acsapm.1c01034<\/a><\/p><\/div>\n
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\n Chinese Academy of Sciences
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Citation<\/strong>:
\n Researchers prepare dual stimulus responsive alginate hydrogel (2021, November 19)
\n retrieved 21 November 2021
\n from https:\/\/phys.org\/news<\/a>\/2021-11-dual-stimulus-responsive-alginate-hydrogel.html<\/p>\n

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