Bioinspired shape-memory graphene film with tunable wettability

Abstract

Bioinspired film with tunable wettability is developed for liquid manipulation based on a lubricant-infused shape-memory graphene sponge.

External Stimuli Responsive Liquid‐Infused Surfaces Switching between Slippery and Nonslippery States: Fabrications and Applications

“…This film demonstrated a dynamic control of droplet motion behavior under voltage stimulus. Similarly, Wang et al presented an electrothermal E‐LIS based on shape‐memory polymer modified graphene sponges . With certain compression, the infused lubricant would come out from the graphene sponge and form a slippery lubricant layer on the top of film, as shown in Figure c.…”

“…The scale bars are 1 cm. Reproduced with permission . Copyright 2017, American Association for the Advancement of Science.…”

“…This photocontrollable device for droplet manipulation could be used as versatile platforms for pipetting droplets. Similarly, they further modified the graphene sponge with shape‐memory polymer . Then, lubricant was introduced into the graphene sponge to form an electrothermal E‐LIS.…”

Emerging Applications of Bioinspired Slippery Surfaces in Biomedical Fields

“…Materials which adapt to external stimuli and environmental changes such as mechanical stretch, temperature change, magnetic and electric stimuli ,. Current dynamic materials rely on a stimulus‐triggered switch in their chemistry and/or morphology to produce a change in functional properties.…”

Responsive graphene oxide hydrogel microcarriers for controllable cell capture and release

“…As an emerging multifunctional material with extraordinary physical and chemical properties, GO has been investigated extensively in many areas, including chemical, environmental, and energy fields [24][25][26][27][28][29][30][31]. In addition, with the integration of biocompatible hydrogels, the composite GO hydrogel materials can be obtained with new properties, including high hydrophilicity, large specific surface area, physical analogue of extracellular matrix, improved mechanical properties and cell compatibility [32][33][34][35][36][37].…”