Biocompatible implants are often proposed to improve osseointegration such as metal, polymer, and ceramic to increase bone growth. This study aimed to create a new interface to enhance osseointegration. This interface is between the polymeric part and bone tissue. In this work coat PEEK (polyether ether ketone) plastic material coated with an active biocompatible material (hydroxyapatite). Regarding biocompatibility, coated PEEK was implanted inside the specimen in rabbit bone, the specimens were X-rayed after a period, and a histological investigation was performed after the samples were extracted from the test animals. X-ray and histological examination results indicate increased bone formation in the HA-coated implant compared with the non-coated HA implant.

The technological performance and social acceptance of water treatment in electromagnetic waves were investigate in this paper that studied in samarra university laboratories to detection the effect of electromagnetic field on water properties, it is worth to mentioning that magnetic field treatment does not leave any traces of waves in the treated water. Electromagnetic treatment applicate on water samples using the electromagnetic field with 1.5 tesla intensity and for two continuous hours by a tube with ¾ inch. diameter and 1m length. The chemical and physical properties were studied before and after treatment. It was observed that there was a slight increase in some properties and a decrease in other properties. The reason was either to increase the dissolved oxygen and to dissolve the suspended particles and total hardness. As well as, significant decrease in total count of bacteria