Concrete is the most widely used material in civil engineering, but due to its inherent brittleness, generation of cracks easily occurs. Crack healing an effective method for restoring mechanical properties concrete and improving durability. Of all current crack methods, microbial-induced calcium carbonate precipitation technology incredibly promising self-healing strategy that has received wid...

Self-healing is a natural process common to all living organisms which provides increased longevity and the ability to adapt to changes in the environment. Inspired by this fitness-enhancing functionality, which was tuned by billions of years of evolution, scientists and engineers have been incorporating self-healing capabilities into synthetic materials. By mimicking mechanically triggered che...

Self-healing polymers are a new class of smart materials that have the capability to repair themselves when they are damaged without the need for detection or repair by manual intervention of any kind. Increasing demand for petroleum feed stocks used to produce polymer and the need for polymeric materials with improved performance in challenging applications continue to drive the need for mater...

background: cutaneous leishmaniasis (cl) is a parasitic disease in most parts of iran, especially in the isfahan province. the most common form of cl is a self-healing lesion but in rare situations, infection might develop to non-healing forms. clinical symptoms and treatment process might be influenced by several agents such as host immune response and parasite strains. in this study, the isol...

The objective of self-healing key distribution is to enable group users to recover session keys by themselves, without requesting additional transmissions from the group manager (GM), even when they miss some broadcast messages. One major benefit of the self-healing key distribution mechanism is the reduction of energy consumption due to the elimination of such additional transmission. Also in ...

Among various ceramic matrix composites developed, self-healing ceramics have been studied as new functional materials. Self-healing occurs in such materials by high-temperature oxidation triggered by a micro-crack initiation on the surface, and the strength of the material autonomously recovers to its robust state since the micro-crack is re-bonded. To facilitate the use of self-healing cerami...

We present fully-distributed algorithms that construct and maintain deterministic expander networks (i.e., the expansion properties are deterministically guaranteed) in the presence of an adaptive adversary. To the best of our knowledge, these algorithms are the first distributed implementations of deterministic expanders that work even under an all-powerful adaptive adversary (that has unlimit...

Biomimetic self-healing superamphiphobicity is reported on a rough alumina surface with a large number of nanopores that act as nanoreserviors for low surface energy materials that can consecutively release and heal the damaged surface.

These images present the dramatic reduction in corrosion of a steel plate coated with a self-healing coating (right) as compared to a conventional coating. Both samples were scratched and placed in 5% NaCl for 5 days. The background is an optical image (2x magnifi cation), in the foreground is an SEM image of the scratch. In the self-healing sample, the scratch has almost completely self-healed...