A tool to remove scales from fish comprises: a shaft, of pre-determined length, a plurality of discs, in which the shaft passes through center of the discs, and the discs are arranged on the shaft at a pre-determined distance between them; and a…

The invention relates to a membrane that comprises a mixture of polysulfone eugenol and an addtive wherein the additive is derived from a plant with antibacterial properties. The polysulfone could be incorporated with silver to form a polysulfone-…