Matches in SemOpenAlex for { <https://semopenalex.org/work/W3025126054> ?p ?o ?g. }
- W3025126054 endingPage "11256" @default.
- W3025126054 startingPage "11247" @default.
- W3025126054 abstract "Hydrogel consists of a crosslinked polymer matrix imbibed with a solvent such as water at volume fractions that can exceed 90%. They are important in many scientific and engineering applications due to their tunable physiochemical properties, bio-compatibility, and ultra-low friction. Their multiphase structure leads to a complex interfacial rheology, yet a detailed, microscopic understanding of hydrogel friction is still emerging. Using a custom-built tribometer, here we identify three distinct regimes of frictional behavior for polyacrylic acid (PAA), polyacrylamide (PAAm), and agarose hydrogel spheres on smooth surfaces. We find that at low velocities, friction is controlled by hydrodynamic flow through the porous hydrogel network, and is inversely proportional to the characteristic pore size. At high velocities, a mesoscopic, lubricating liquid film forms between the gel and surface that obeys elastohydrodynamic theory. Between these regimes, the frictional force decreases by an order of magnitude and displays slow relaxation over several minutes. Our results can be interpreted as an interfacial shear thinning of the polymers with an increasing relaxation time due to the confinement of entanglements. This transition can be tuned by varying the solvent salt concentration, solvent viscosity, and sliding geometry at the interface." @default.
- W3025126054 created "2020-05-21" @default.
- W3025126054 creator A5005297831 @default.
- W3025126054 creator A5024470836 @default.
- W3025126054 creator A5063459243 @default.
- W3025126054 creator A5068965560 @default.
- W3025126054 creator A5080702347 @default.
- W3025126054 date "2020-05-12" @default.
- W3025126054 modified "2023-10-17" @default.
- W3025126054 title "Pore-size dependence and slow relaxation of hydrogel friction on smooth surfaces" @default.
- W3025126054 cites W1200370352 @default.
- W3025126054 cites W1641583058 @default.
- W3025126054 cites W1977633726 @default.
- W3025126054 cites W1981325499 @default.
- W3025126054 cites W1982967234 @default.
- W3025126054 cites W1983932088 @default.
- W3025126054 cites W1985204201 @default.
- W3025126054 cites W1988507989 @default.
- W3025126054 cites W1991834170 @default.
- W3025126054 cites W2001437077 @default.
- W3025126054 cites W2010795086 @default.
- W3025126054 cites W2012265613 @default.
- W3025126054 cites W2018754317 @default.
- W3025126054 cites W2022061964 @default.
- W3025126054 cites W2037065466 @default.
- W3025126054 cites W2039548511 @default.
- W3025126054 cites W2041780028 @default.
- W3025126054 cites W2047103746 @default.
- W3025126054 cites W2049078445 @default.
- W3025126054 cites W2051979117 @default.
- W3025126054 cites W2054393840 @default.
- W3025126054 cites W2055037957 @default.
- W3025126054 cites W2057671118 @default.
- W3025126054 cites W2058808678 @default.
- W3025126054 cites W2060449729 @default.
- W3025126054 cites W2065575308 @default.
- W3025126054 cites W2066080189 @default.
- W3025126054 cites W2066818093 @default.
- W3025126054 cites W2070613572 @default.
- W3025126054 cites W2079960550 @default.
- W3025126054 cites W2081370102 @default.
- W3025126054 cites W2082397369 @default.
- W3025126054 cites W2083136425 @default.
- W3025126054 cites W2084401861 @default.
- W3025126054 cites W2099456491 @default.
- W3025126054 cites W2104977036 @default.
- W3025126054 cites W2137861506 @default.
- W3025126054 cites W2140536308 @default.
- W3025126054 cites W2141150150 @default.
- W3025126054 cites W2151747530 @default.
- W3025126054 cites W2160462930 @default.
- W3025126054 cites W2166657727 @default.
- W3025126054 cites W2166750864 @default.
- W3025126054 cites W2166772812 @default.
- W3025126054 cites W2171294593 @default.
- W3025126054 cites W2172380826 @default.
- W3025126054 cites W2205309728 @default.
- W3025126054 cites W2229037255 @default.
- W3025126054 cites W2237903381 @default.
- W3025126054 cites W2281648436 @default.
- W3025126054 cites W2294078678 @default.
- W3025126054 cites W2323956509 @default.
- W3025126054 cites W2465556602 @default.
- W3025126054 cites W2525394790 @default.
- W3025126054 cites W2554942821 @default.
- W3025126054 cites W2584350454 @default.
- W3025126054 cites W2594816406 @default.
- W3025126054 cites W2757168245 @default.
- W3025126054 cites W2780480751 @default.
- W3025126054 cites W2792813547 @default.
- W3025126054 cites W2803540824 @default.
- W3025126054 cites W2884594462 @default.
- W3025126054 cites W2966675460 @default.
- W3025126054 cites W2979920479 @default.
- W3025126054 cites W3037816321 @default.
- W3025126054 cites W3100434922 @default.
- W3025126054 cites W652778864 @default.
- W3025126054 doi "https://doi.org/10.1073/pnas.1922364117" @default.
- W3025126054 hasPubMedCentralId "https://www.ncbi.nlm.nih.gov/pmc/articles/7260953" @default.
- W3025126054 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/32398363" @default.
- W3025126054 hasPublicationYear "2020" @default.
- W3025126054 type Work @default.
- W3025126054 sameAs 3025126054 @default.
- W3025126054 citedByCount "46" @default.
- W3025126054 countsByYear W30251260542020 @default.
- W3025126054 countsByYear W30251260542021 @default.
- W3025126054 countsByYear W30251260542022 @default.
- W3025126054 countsByYear W30251260542023 @default.
- W3025126054 crossrefType "journal-article" @default.
- W3025126054 hasAuthorship W3025126054A5005297831 @default.
- W3025126054 hasAuthorship W3025126054A5024470836 @default.
- W3025126054 hasAuthorship W3025126054A5063459243 @default.
- W3025126054 hasAuthorship W3025126054A5068965560 @default.
- W3025126054 hasAuthorship W3025126054A5080702347 @default.
- W3025126054 hasBestOaLocation W30251260541 @default.
- W3025126054 hasConcept C105569014 @default.
- W3025126054 hasConcept C127172972 @default.
- W3025126054 hasConcept C15744967 @default.