Dynamics of erythrocytes in oscillatory shear flows: effects of S/V ratio

Zhu, Qiang; Bi, Xiaobo

doi:10.1039/d1sm01430g

Cited by 4 publications

(5 citation statements)

References 44 publications

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“…Recent studies demonstrate that shear flows can rapidly manipulate shapes too. 64 Simple systems, such as talc, identified so long ago by Goldacre 11 as having the ability to roll up into stable cylinders, should not be ignored.…”

Section: Discussionmentioning

confidence: 99%

Reshaping sub-millimetre bubbles from spheres to tori

et al. 2022

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Section: Discussionmentioning

confidence: 99%

Reshaping sub-millimetre bubbles from spheres to tori

et al. 2022

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“…As it is known, the thermodynamics of polymer networks is determined by their geometrical shapes [33][34][35]38], which are originated from the exchange and correlation charge-density with the external solvent system. Therefore, it is necessary to describe the geometrical shapes of network structures, whose free energies are determined by their charge-densities.…”

Section: Theoretical Frameworkmentioning

confidence: 99%

“…In this study, a self-consistent fractal geometry model is proposed to understand the constitutive relationship between network structure and mechanical elasticity in the PA hydrogel undergoing exchange and correlation charge-density. Initially, a free-energy equation has been formulated to identify the thermodynamics of polymer networks undergoing exchange and correlation charge-density in PA hydrogel [33][34][35]38]. A fractal geometry model is then developed to describe the constitutive relationship between charge-density and geometrical shape of the network structures by using the fractal function and rubber elasticity theory [39][40][41].…”

Section: Introductionmentioning

confidence: 99%

“…The thermodynamic elasticity of polymer network plays an essential role to determine mechanical behaviors of these PA hydrogels. However, currently few studies have been carried out to identify the toughening mechanisms of mechanochemistry, which is mainly originated from a complex coupling and scaling effects between molecular chemistry in network and macroscopical mechanics of these PA hydrogels [38][39][40].…”

Section: Introductionmentioning

confidence: 99%

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Self-consistent fractal geometry in polyampholyte hydrogels undergoing exchange and correlation charge-density

Xing¹,

Lu²,

Fu³

2022

J. Phys. D: Appl. Phys.

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Polyampholyte (PA) hydrogels are incorporated of many internally charged polymer chains, which play an important role to influence the fractal networks and dynamic elasticity of the PA hydrogels owing to their different exchange and correlation charge-densities. Many properties of the PA hydrogels, such as mechanical strength and deformation, are significantly dependent on their fractal networks. However, working principles of chemo-mechanical coupling between the fractal networks and the elasticity of PA hydrogels have not been fully understood. In this study, a self-consistent fractal geometry model integrated with a complex function is proposed to understand the constitutive relationship between dynamic networks and tailorable mechanics in the PA hydrogels. The newly developed model is uniquely incorporated with the mechanochemistry, and describes the chemical polarization reactions of charged networks and their mechanical behaviors using complex fractal functions. Based on the rubber elasticity theory, constitutive stress-strain relationships of fractal networks have been described using their elastic, conformational, repulsive and polarization free-energy functions. Finally, effectiveness of the proposed model has been verified using both finite element analysis (FEA) and experimental results of the PA hydrogels reported in literature.

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“…The reduced volume of RBCs has been shown both experimentally and numerically to considerably affect their ability to pass through confined microchannels 23 and deformation in shear flow. 24 The deformation and buckling of a spherical capsule as a function of reduced volume has been modelled 25 and validated with experiments on beach balls. 26 However, characterisation of the motion and deformation of partially deflated capsules under shear flow is still lacking.…”

Section: Introductionmentioning

confidence: 99%