Cyanobacteria as the Source of Antioxidants

The present-day scenario in the health sector calls for alternative medicine sources with no risk of resistance, effective in the mode of action, and eco-friendly. Cyanobacteria are microbial factories for a wide range of products. They are reservoirs of bioactive compounds which have the potential to act as precursors of novel drug molecules. A plethora of algae have been documented for their therapeutic abilities in treating diseases. A plethora of antioxidative compounds along with enzymes are present in cyanobacteria, possessing applications in nutraceuticals and cosmeceuticals, which is quite evident from the products available in the market. This chapter highlights the significant leads in the area of cyanobacteria-based antioxidants. A sustainable approach to envisaging cyanobacteria as competent antioxidants can open new doors in prevention, treatment, and control of a plethora of diseases

Electrical Discharge Coating a Potential Surface Engineering Technique: A State of the Art

Electrical discharge coating (EDC) process is used to deposit material on workpiece surface from sacrificial or green compact tool electrode in an electrical discharge machine. The paper presents the mechanism of EDC using green compact electrode and powder mixed dielectric methods. The tool electrode material, electrode size, process parameters, and type of dielectrics can directly affect the surface integrity of workpiece. Here, a process map of EDC as a function of process parameters, its classification, advantages, and applications for a wide range of engineering materials offers a proper template for the evaluation of coating phenomena. This study shows that EDC is an economic process as compared to other costlier techniques. Additionally, the effect of various EDM and EDC parameters on surface integrity and tribological behavior of deposited coatings is studied with their pros and cons. Finally, the current research trends of EDC and its challenges are elaborated.info:eu-repo/semantics/publishedVersio

Study on the effect of carbon-fiber-reinforced composites on tribological properties

Polymer additive manufacturing (AM) has made significant progress in recent decades, but material properties, production speed, and part size constraints have limited it. As a result, it has mainly been used for rapid prototyping instead of the full-scale production of end-use components. Carbon fiber, however, offers several advantages, including low density, coefficient of thermal expansion, and high thermal conductivity. It can elevate polymer-based AM from simply achieving form and fit to achieving fit and function. Integrating carbon fiber into AM processes can lead to improved material characteristics, reduced production time compared to traditional subtractive methods, and decreased warping issues. This, in turn, allows for creating larger and more complex components. As a result, incorporating carbon fiber into various AM technologies has garnered increasing attention and interest within both academic and industrial circles. In the present chapter, a brief discussion on the effect of carbon fiber reinforcement on tribological properties of the additive manufactured CFRP composites is carried out.<br/