Surface Wettability of a Natural Rubber Composite under Stretching: A Model to Predict Cell Survival

Abstract

We report the stress–strain effect of a stretchable natural rubber (NR)–calcium phosphate composite on the surface wettability (SW) using an innovative approach coupling a uniaxial tensile micromachine, goniometer, and microscope. In situ contact angle measurements in real time were performed during mechanical tension. Our results show that SW is guided by the stress–strain relationship with two different characteristics, depending on the static or dynamic experiments. The results evidenced the limits of the classical theory of wetting. Furthermore, based on the mechanically tunable SW of the system associated with the cytocompatibility of the NR composite, we have modeled such a system for application as a cell support. From the experimental surface energy value, our proposed 3D modeling numerical simulation predicted a window of opportunities for cell–NR survival under mechanical stimuli. The presented data and the thermodynamics-based theoretical approach enable not only accurate correlation of SW with mechanical properties of the NR composite but also provide huge potential for future cell supportability in view of tissue engineering.

Construction of a rough surface in EPDM/CB composite through peroxide curing: A mechanism for optimizing physico‐mechanical properties in automotive paint‐compatible applications

“…The presence of polar functional groups on the composite surface reduces the contact angle ( θ ) of the liquid paint on the solid rubber surface 44 . A reduced contact angle indicates good wetting and enhanced interfacial interactions, further increasing the work of adhesion ( W ) and promoting adhesion between the EPDM composite and the paint 22,27 .…”

“…27 The presence of polar functional groups on the composite surface reduces the contact angle (θ) of the liquid paint on the solid rubber surface. 44 A reduced contact angle indicates good wetting and enhanced interfacial interactions, further increasing the work of adhesion (W) and promoting adhesion between the EPDM composite and the paint. 22,27 The relationship between the contact angle (θ) and the work of adhesion (W) is described by Young's equation (Equation 2), which defines the balance of interfacial forces at the three-phase contact line involving solid, liquid, and gas phases.…”

Hysteresis Phenomena in a Liquid Sessile Drop on a Stretchable Inclined Elastic Substrate

“…It is elastocapillarity in which the liquid behavior at the contact with elastic deformed surfaces is studied [9][10][11]. In the frames of this direction, the behavior of liquid sessile drops on the plane horizontal stretchable rubber surfaces was studied, for example, in [12,13]. Unique data about the hydrodynamics of drops was obtained in the research.…”

“…Thus, the hysteresis in [12] appeared evidently in a dynamic mode, for example, when the drop volume was changed by means of a syringe, as recommended in [2][3][4]. The hysteresis of contact angles in [13] was not studied at all.…”

Экспериментальное Исследование Подъема Уровня Жидкости В Плоском Капилляре, Образуемом Эластичными Периодически Растягиваемыми Стенками

“…Недавно в науке о смачиваемости и капиллярных явлениях появилось новое направление -эластокапиллярность, в котором изучается поведение жидкостей при их контакте с эластичными деформируемыми поверхностями [9][10][11]. В рамках этого направления изучалось, например, поведение жидких капель, сидящих на плоских горизонтальных растягиваемых резиновых подложках [12,13].…”