This review deals with natural biotribological systems and how they have inspired novel microand nanotechnological applications. The biogenic devices presented here have functional units in the microand nanometer regime and have been evolutionarily optimized over millions of years. The examples discussed comprise natural micromechanical systems made of nanostructured silica (diatoms produce hin...

Self-etch adhesives that etch, prime, and bond simultaneously should not exhibit incomplete resin infiltration within hybrid layers. We hypothesized that nanoleakage patterns in these systems are artifacts caused by mineral dissolution in mildly acidic silver nitrate. Resin-dentin interfaces bonded with four single-step, self-etch adhesives were examined for nanoleakage by conventional (pH 4.2)...

The interest in the development of biobased adhesives has increased due to environmental concerns. Moreover, as production engineered wood products (EWPs) is expected grow, market needs transit toward formaldehyde-free products. Cellulose nanoparticles (CNPs) are a material with unique properties and advantages for producing hybrid materials adhesives. Besides their traditional use reinforcing ...

Purpose: of this paper was to review and summarize significant papers related the development characterization lignin-containing adhesives: polyurethane epoxy types. In last decades, several efforts have been dedicated on renewable raw materials for polymer synthesis, mainly due petroleum depletion sustainability. context, lignin emerged as a potential candidate substitute fossilbased in adhesi...

Background and aims: New dentin bonding agents and techniques have been developed to reduce microleakage and create higher bond strength. This invitro study compared the microleakage of three resinbased adhesives versus a GIC-based adhesive on class V composite restorations. Materials and Methods: Class V cavities were prepared on the buccal surfaces of 72 sound premolars, randomly assigned to ...

In this presented work, we describe the development and characterization of a new, environmentally friendly adhesive derived from cornstarch and tannins. The production of wood composites mainly relies on the petrochemical-based and formaldehyde-based adhesives such as urea formaldehyde (UF), phenol formaldehyde (PF) and melamine urea formaldehyde (MUF), which can generate under certain conditi...