Bioinspired Compartmentalization Strategy for Coating Polymers with Self-Organized Prismatic Films

Abstract

Biomineralization provides load-bearing and protective functions to living organisms by reinforcing soft tissues. Translation of biomineralization principles to materials science in a controlled and self-organized fashion is highly desirable but challenging. A major lesson from natural systems is that crystallization may be controlled by compartmentalization and templating. Here, we develop a crystallization technique based on graphene oxide-mediated compartmentalization and on templating prismatic growth of calcite nanocoatings via control of ionic diffusivity into the microcompartments, which results in a multistage, self-organized crystallization and represents an effective strategy for providing continuous nanocoatings and enhancing the tribological performance of polymeric surfaces under contact stresses. The present research offers a bottom-up approach of using very basic biomineralization principles for the protection of polymeric surfaces, which are of interest for biomedical applications and the fabrication of high-performance functional materials in a sustainable manner.

Preparation of Hydrophobic Low-k Epoxy Resins with High Adhesion Using a Benzocyclobutene-Rosin Modifier

“…Microscratch experiments were performed to further evaluate the adhesion of the modified epoxy resin to copper (Figure e,f). , As shown in Figure g, the critical loads of BCB-DA-0 and BCB-DA-10 were 4.78 and 5.77 N, respectively. These results showed that introducing the BCB-DA structure can improve the adhesion between epoxy resins and copper.…”

The Rising of Flexible and Elastic Ceramic Fiber Materials: Fundamental Concept, Design Principle, and Toughening Mechanism

“…Reproduced with permission. [ 123a ] Copyright 2020, Wiley‐VCH. j) Demonstration of using the ceramic fibrous membrane as a wire to light a bulb.…”

“…Reproduced with permission. [ 123a ] Copyright 2020, Wiley‐VCH. k) Ammonia yields and Faradaic efficiencies of c‐TiO 2 sponges at different potentials for 2 h. Reproduced with permission.…”

“…The excellent physicochemical stability and porous structure allow the ceramic fiber materials to be used as electrodes and battery separators in lithium‐ion batteries and supercapacitors. [ 123 ] Figure 14i,j demonstrates the ceramic fibrous membranes that enabled an integrated system in a solid–state Li‐metal battery. At the same time, ceramic fibers could possibly be used in numerous electronic gadgets because of their high surface region, open permeable microstructure, and multiple composition.…”

Synergistic intrafibrillar/extrafibrillar mineralization of collagen fibrils and scaffolds enhanced by introducing polyacrylamide to PILP for osteogenic differentiation

“…As this process involves the transition from nanoscale to macroscale, it is also referred to as a bottom‐up process 14,36 . As proven in many experiments, biomineralization is one such bottom‐up mineralization process 14,34,37 . The PILP process requires a class of polymers that stabilizes the amorphous precursors to achieve liquid–liquid phase separation.…”