Fast and Efficient Water Absorption Material Inspired by Cactus Root

Hyejeong Kim, Junho Kim, Sang Joon Lee

Research output: Contribution to journalArticlepeer-review

13 Citations (Scopus)


Analogous to the morphological and functional features of cactus root, a novel cactus root-inspired material (CRIM) was fabricated by integrating cellulose fibers, microparticles, and agarose-based cryogels. Without undergoing sophisticated chemical synthesis or surface modification, the CRIM exhibited efficient water absorption and retention ability with high structural stability. 82% of the total water absorption capacity was recovered within 1 min, with a swelling rate nearly 930-fold faster than the evaporation rate, while only about 17% of the length extension occurred. Given that efficient water absorption and storage without physical change is crucial to the design and fabrication of water management devices, the CRIM is a promising material for various applications, including cosmetics or healthcare products, functional fabrics, and drug delivery devices.

Original languageEnglish
Pages (from-to)387-394
Number of pages8
JournalACS Macro Letters
Issue number3
Publication statusPublished - 2018 Mar 20
Externally publishedYes

ASJC Scopus subject areas

  • Organic Chemistry
  • Polymers and Plastics
  • Inorganic Chemistry
  • Materials Chemistry


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