TY - JOUR
T1 - Tough and fully recoverable hydrogels
AU - Wei, Junhua
AU - Wang, Jilong
AU - Su, Siheng
AU - Wang, Shiren
AU - Qiu, Jingjing
N1 - Publisher Copyright:
© The Royal Society of Chemistry.
PY - 2015/7/14
Y1 - 2015/7/14
N2 - In natural cartilage, collagen fibers form the extracellular matrix, while aggrecan entangles with these fibers and provides cartilage with its osmotic properties, which are critical to resist cyclic compressive loads. In this paper, a hydrogel was fabricated via the entanglement of a bio-inspired nanostructure (chondroitin sulfate-coated vinyl silica nanoparticles, CS-SNP) within an agar/poly(acrylamide) double network hydrogel. The highly charged chondroitin sulfate groups provide additional compression resistance within the macromolecular chains, while the solid silica cores anchor these entanglements. The presence of the CS-SNP not only improved the compressive modulus, compressive strength, fracture toughness, and fatigue resistance of this hydrogel, but also ensured the full recovery of all these properties after thermal heating. This tough, fully recoverable, and robust hydrogel is a promising material for applications with strong mechanical requirements.
AB - In natural cartilage, collagen fibers form the extracellular matrix, while aggrecan entangles with these fibers and provides cartilage with its osmotic properties, which are critical to resist cyclic compressive loads. In this paper, a hydrogel was fabricated via the entanglement of a bio-inspired nanostructure (chondroitin sulfate-coated vinyl silica nanoparticles, CS-SNP) within an agar/poly(acrylamide) double network hydrogel. The highly charged chondroitin sulfate groups provide additional compression resistance within the macromolecular chains, while the solid silica cores anchor these entanglements. The presence of the CS-SNP not only improved the compressive modulus, compressive strength, fracture toughness, and fatigue resistance of this hydrogel, but also ensured the full recovery of all these properties after thermal heating. This tough, fully recoverable, and robust hydrogel is a promising material for applications with strong mechanical requirements.
UR - http://www.scopus.com/inward/record.url?scp=84933059952&partnerID=8YFLogxK
U2 - 10.1039/c5tb00504c
DO - 10.1039/c5tb00504c
M3 - Article
AN - SCOPUS:84933059952
SN - 2050-7518
VL - 3
SP - 5284
EP - 5290
JO - Journal of Materials Chemistry B
JF - Journal of Materials Chemistry B
IS - 26
ER -