A super-gel stays supple from –115 ℃ to 143 ℃
Nature, Published online: 05 March 2025; doi:10.1038/d41586-025-00604-3A network of two polymers plus sulfuric acid allows a hydrogel to keep its elasticity and softness at extreme temperatures.

Nature, Published online: 05 March 2025; doi:10.1038/d41586-025-00604-3A network of two polymers plus sulfuric acid allows a hydrogel to keep its elasticity and softness at extreme temperatures.