Gold doped TiO2 has been successfully synthesized via photolysis method and is characterized by different techniques. Nanoparticles of gold doped TiO2 were utilized for the degradation of methylene blue as a material pigmentation pollutant. The substitution of Au on TiO2 surface was confirmed by XRD, EDX, TEM and FTIR techniques. The TEM and SEM results showed that the particles are in nano range and its size is below 15 nm. Without a catalyst, the degradation of the dye under visible light in acid and natural medium gives a modest result, but a better results at pH 11 while it gives an excellent result at all conditions when using a catalyst.

In this research the structural modification of starch was carried out with methyl nadic anhydride (M1) as a spacer by using ceric ammonium nitrate (CAN) as an initiator, and grafted copolymer was substituted with amino drug such as 4-aminoantipyrine (M1B), this design of carries for controlled delivery of therapeutic agent which could release the entrapped drug over an extended period of time, due to its nontoxic, biodegradable and slow digesting nature, the new drug copolymer was characterized by FTIR,

This review involves the effect of digestion methods on the drugs and how to overcome the harms of digestion process by designing the suitable a polymeric drug system that has ability to hold out the harsh conditions of the acid in stomach. And it involves different type of backbone polymer to prepare new drug polymers form, this new polymer drugs included many benefits such as release the minimum amount of drug over an prolonged time by organized delivery of drug and the side effect of drugs will reduced. This process includes the modification of natural polymer such as chitosan, starch, cellulose, gelatin by carried out with a spacer, and grafted the new copolymer with amino drug such as amoxicillin (HA), and characterize it by UV Spectroscopes, (DSC) and (TGA) and physical properties was discussed. And know the ability of drug release in different pH. In this review we concluded that the best way to overcome the side effect of digestion process on the drugs by using the medicine as polymer drugs, and the best polymer used was natural polymers, the prepared polymer drug have thermal stability more than the drug alone, this indicate extra expire date with more safety of drug satiability.

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For urinalysis teaching and routine clinical imaging of urine, urine microscopic test needs slides that can be clearly examined for long term, which is still under focus. This study hypothesized, that poly(vinyl chloride) (PVC) and polystyrene (PS) could be able to reserve the urine components for a long time. Therefore, we explored, for the first time upon our knowledge, the potential of PVC and PS polymers to adhere the cover slide. The physical properties, viscosity, average molecular weight, the tensile strength and intrinsic viscosity of the polymers were determined. A normal slide (8 × 3 cm × 1 mm) was used to test a urine sample in the presence of either 3% PVC in tetra hydro‐furan(THF) or 3% PS. The results of imaging the PVC and PS slide indicate a clear and transparent vision. The PVC urine slide maintains normal components of urine up to a year, which did not observe in the PS slide. These results suggest that PVC is an effective polymer to protect urine compositions from hydrolyses or decomposition, which makes this novel urine slide a successful candidate for long‐term teaching of urinalyses.

This study was applied on 15 teaching staffs (10 men and 5 women) from Department of Chemistry, Diyala University to measure the effect of the stress during the working hours on the erythrocyte sedimentation rate (ESR). Blood samples were taken from the teaching staffs before and after the work, as well as another sample after the end of the working hours. The results were analyzed using a statistical program. Most of the results were within the normal level of ESR. There is no stress effect on teaching staffs during the working hours.

We often hear about cases of incompatibility of the blood of newly married couples, where it results in fears of fetal blood breakdown and others. The same problem generates by transferring blood from a donor to a recipient. This mini-review discusses this problem, outlines the possible reasons for blood aggregation and its negative effects and gives tips to avoid this problem in the future.

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