2003
DOI: 10.1140/epje/i2003-10056-0
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Elastic properties of polyelectrolyte capsules studied by atomic-force microscopy and RICM

Abstract: Mechanical properties of polyelectrolyte multilayer capsules were studied using a new method combining atomic-force microscopy and reflection interference contrast microscopy. By measuring the force vs. deformation for poly(styrene sulfonate)/poly(allylamine) capsules the existence of different deformation regimes depending on the applied deformation was shown. The present paper focuses on the small-deformation regime. The elastic response of the deformed capsule was studied as a function of the wall thickness… Show more

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Cited by 206 publications
(263 citation statements)
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“…3 E and F). Those elevated E values are similar to the ones reported for artificial polymeric capsules of comparable thicknesses (50). The median E moduli showed no significant variation between the different maturing oocyst stages irrespective of the oocyst pretreatment (SI Appendix, Tables S2 and S4).…”
Section: Resultssupporting
confidence: 84%
“…3 E and F). Those elevated E values are similar to the ones reported for artificial polymeric capsules of comparable thicknesses (50). The median E moduli showed no significant variation between the different maturing oocyst stages irrespective of the oocyst pretreatment (SI Appendix, Tables S2 and S4).…”
Section: Resultssupporting
confidence: 84%
“…The stiffness of PAH/PSS (MnCO 3 ) microcapsules could be increased by a factor of 8 by precipitation of YF 3 nanoparticles onto the PMC surface. The increase of PMC stiffness with shell layer thickness t s was found to be proportional to t 2 s at small deformations (bending rigidity dominates) [892,894], and linear in t s for larger deformations [894]. PMC stiffness was found to be highest in pure water, decreasing slightly with increasing NaCl concentration up to 3 M [897,899]; between 3 and 5 M stiffness did not change any further [899].…”
Section: Results For Hollow Capsulesmentioning
confidence: 84%
“…Very high values of Young's modulus larger than 1 GPa for PAH/PSS PMCs templated with PS were found by Dubreuil et al [892] from the buckling forces at very small deformations (Eq. (9.5)).…”
Section: Results For Hollow Capsulesmentioning
confidence: 85%
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