Protecting concrete: additives and coatings for greater durability in construction “The compressive strength test is usually the most used parameter as an indicator of concrete quality; however, its value does not determine its durability by itself, that is, in addition to mechanical resistance, permeability and chemical resistance also influence its useful life” The permeability of concrete is understood as the passage of water and aggressive ions through the capillaries between the aggregates and the cement

Towards a sustainable construction: how graphene oxide increases the resistance of concrete and favors the reduction of CO2 emissions The investigation of new technologies for the cement and concrete industry is not only limited to improving its durability, but also to seeking strategies to control its influence on climate change, taking as a background that this industry is the third largest source of emissions of carbon dioxide (CO2) and that the global challenge for 2030

The graphene additive for concrete: a revolutionary thermal insulator in construction In recent years, the construction industry is looking formward to improve the properties of mortar and concrete, to increase their durability, especially in structures exposed to aggressive or extreme environments. Among the properties that are sought to improve, is the resistance to compression, the resistance to compression tension, as well as to reduce cracking. With the increase in the volume of concrete in civil

Graphene and nanomedicine: the perfect combination for improved health Part III. Dentistry- Implantology The application of nanotechnology in nanomedicine is based on the fact that most biological molecules, from DNA, amino acids and proteins to constituents such as hydroxyapatite and collagen fibrils, among others, exist and function at the nanometric scale. Nanometer (nm): millionth of 1 millimeter. Graphene materials are two-dimensional (2D) sheet-shaped carbon nanoparticles that have gained popularity in the field of biomedical sciences

Innovation in the production of composite materials: the use of graphene in pultrusion Fiber-reinforced polymeric composites are widely used in the aerospace, automotive, naval, and wind power generation sectors due to their lightweight properties and high mechanical strength. These materials are a booming alternative to replace other materials such as metals. At present there are different methods for the manufacture of fiber-reinforced composites, among which the pultrusion method stands out. A highly efficient and automated

The safety of graphene in human health: what science says about it Part II. Are graphene materials safe for humans? The family of graphene materials comprises a wide range of two-dimensional (2D) carbon nanostructures in the form of sheets that differ from each other by the particularities derived from the production method or by the innumerable functionalizations that can be performed after its obtaining. In 2022, Nature magazine, one of the most important scientific journals

Graphene in protection against electromagnetic radiation The development of communication technology together with electronic devices has generated great concern regarding the electromagnetic radiation emitted by these technologies. Electromagnetic radiation is a type of electromagnetic field, that is, a combination of oscillating electric and magnetic fields, which propagates through space carrying energy from one place to another. Electromagnetic radiation can manifest itself in various ways, such as radio waves, microwaves, infrared radiation, visible light, ultraviolet radiation,

Graphene: The next revolution in biomedical applications Part I. Tissue Engineering Advances in medicine have reached levels unimagined until recently. Among them, tissue engineering has an important participation. With it is possible to combine cells, biomaterials and biologically active molecules with the aim of repairing or replicating tissues or organs with a function similar to that of the original structure. In principle, biomaterials are used as molecular scaffolds to act as a three-dimensional (3D) support

Improve safety with flame retardant polymeric compounds with graphene oxide Polymeric compounds (engineering plastics) are widely used in the automotive, construction, food, aerospace and other sectors. Its use is based on the weight/resistance ratio, physical stability, chemical resistance and corrosion resistance. However, most polymers, due to their nature, are flammable and combustible. That is, they are materials that catch fire quickly when exposed to fire, undergoing degradation, Veo complicadoand releasing heat to later start the