In vivo adhesive behavior of human facial skin by a modified indentation test

Dai, Anna; He, Weijun; Wang, S.B.; Chen, W.J.; Li, C.W.; Wang, Z.Y.; Li, L.A.

doi:10.1016/j.jmbbm.2019.01.013

Cited by 10 publications

(3 citation statements)

References 24 publications

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“…However, under a quasi-static state, when the indentation speed was less than 500 μm/s, the adhesion characteristic of the tested soft material was stable [ 36 ]. In addition, Dai et al indicated that the adhesion energy of soft matters due to the hydrodynamic force or the viscous force could be negligible when the speed was lower than 0.5 mm/s [ 25 ]. In this study, 1 mm/min (i.e., approximately 17 μm/s) was used as the indentation speed.…”

Section: Discussionmentioning

confidence: 99%

“…To obtain the corneal adhesion force, F ad , in mathematics, one needs to solve the peak value from Equation (1). The definition of F ad is quoted from previous works [ 25 , 26 ], which was used to describe the maximum interfacial force (i.e., pull-off force in the Supplementary Materials II and III ), while the punch is detached from the soft material. To determine the F ad value, in mathematics, one must find the critical contact radius, a c , in the partial differential solution of

.…”

Section: Methodsmentioning

confidence: 99%

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Corneal Adhesion Possesses the Characteristics of Solid and Membrane

et al. 2022

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Adhesion behavior usually occurs in corneas associated with clinical treatments. Physiologically, an intact natural cornea is inflated by intraocular pressure. Due to the inflation, the physiological cornea has a mechanical property likeness to membrane. This characteristic is ignored by the classical theory used to analyze the adhesion behavior of soft solids, such as the Johnson–Kendall–Roberts (JKR) model. Performing the pull-off test, this work evidenced that the classical JKR solution was suitable for computing the corneal adhesion force corresponding to the submillimeter scale of contact. However, when the cornea was contacted at a millimeter scale, the JKR solutions were clearly smaller than the related experimental data. The reason was correlated with the membranous characteristic of the natural cornea was not considered in the JKR solid model. In this work, the modified JKR model was superimposed by the contribution from the surface tension related to the corneal inflation due to the intraocular pressure. It should be treated as a solid when the cornea is contacted at a submillimeter scale, whereas for the contact at a larger size, the characteristic of the membrane should be considered in analyzing the corneal adhesion. The modified JKR model successfully described the adhesion characteristics of the cornea from solid to membrane.

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Section: Discussionmentioning

confidence: 99%

.…”

Section: Methodsmentioning

confidence: 99%

Corneal Adhesion Possesses the Characteristics of Solid and Membrane

et al. 2022

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“…Isaza and Ramirez investigated the effect of temperature and indenter diameter on this elastic Young's Modulus [39]. Álvarez-Asencio et al used a nano- any effect on its indentation properties [41], [42]. The experiments were all done at non quasi-static speed but did not factor in any viscoelastic properties into their analysis.…”

Section: Previous Work In Skin Indentationmentioning

confidence: 99%

Analysis of Variables which Affect the Mechanical and Fracture Properties of Porcine Skin

Irwin¹

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A diabetes infusion kit is a treatment option for patients with type one diabetes. Using beam springs, the device inserts a Teflon cannula into a patient's skin for delivery of insulin.Modelling the insertion process requires understanding of how the skin surface deforms and fractures. Experiments measuring the indentation properties and fracture properties of porcine skin were performed. A viscoelastic model was developed and fit to experimental indentation force results to derive material properties. A fracture toughness coefficient was derived from the

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Biomechanics of the Skin

VALLET,

LAURENT

2024

Mechanics of Living Tissues

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In vivo adhesive behavior of human facial skin by a modified indentation test

Cited by 10 publications

References 24 publications

Corneal Adhesion Possesses the Characteristics of Solid and Membrane

Corneal Adhesion Possesses the Characteristics of Solid and Membrane

Analysis of Variables which Affect the Mechanical and Fracture Properties of Porcine Skin

Biomechanics of the Skin

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