Applied Sciences grants Manar M. Rashid Master gegree about thesis  entitled “Preparation and Characterization of Metallic Nanoparticles Loaded with Lipopolysaccharide Isolated from Iraqi Hospitals for Theranostic Study”.

The discussion committee consisted of Dr. Sanad Mohammed Baqer / Biochemistry - University of Baghdad, Dr. Majid Sakhi Jaber / Immunology - University of Technology and Dr. Intisar Hussein Ali / Enzimat - University of Technology  as members and Dr. Ali Abdul Rahman Taha / fungi and poisons - University of Technology supervisor Nada Hisham Abdel-Latif / Biotechnology  as Co-supervisor.

The study concluded “Lipopolysaccharide (LPS) is an essential component of the outer membrane of Gram-negative bacteria, playing an important role in the protection of harsh environments, in drug resistance and in pathogenesis. In the present study,25 urine samples were collected from patients with urinary tract infection from the Central Teaching Hospital of Peadiatric in Baghdad/Iraq. Macroscopic, microscopic and Api20E system were used to identify Escherichia coli from15 suspectedisolates. One E. coli isolate was chosen to produce and extract LPS. The LPS was extracted and purified by hot phenol method followed by Sephacryl S-200 gel filtration chromatography to obtain 2.5 mg of LPS. Moreover, molecular weight of LPS was 105KD estimated after gel filtration.

On the other hand, CuS NPs had been synthesized by bovine serum albumin (BSA) entrapment characterized by UV/Visible spectrophotometer,SEM,XRD,FTIR and Zeta potential. The results revealed an absorbance peaks at 197 nm and 616 nm due to the presence of BSA and CuS NPs respectively. The particle size of CuS-BSA NPs ranging between 30–60 nm was observed and analyzed by SEM.The EDX analysis was used to determine the chemical composition of CuS-BSA NPs and the results showed the presence alarge percentageof carbon in addition to the oxygen, nitrogen, copper and sulfur.Furthermore, the FTIR spectrum result of CuS-BSA NPs was shown the N–H bond of amino groups and a hydroxyl group (-OH) at 3435.34 cm-1, while the (S-H) band was seen at 2729.37 cm-1. The zeta potential value of CuS-BSA NPs was (-14.49 mV).

The CuS-BSA nanoparticles showed an antibacterial activity against S.aureus,Proteus, E. coli and Enterobacterbacteriaand the mean of inhibition zone diameter was (10, 8, 7, 6) respectively.In order to confer the specificity and enhancethe antitumor activity, the TAT peptide and LPS had been combined with CuS NPs. The cytotoxic effects of CuS-BSA NPs, LPS, CuS-BSA+LPS and CuS + BSA + LPS + TAT against RD and L20B cell lines were determined by MTT assay.The results showed a significant cytotoxic effect on RD cell line (P <0.001), while there were high effects (56 %) when 1 µg/ml CuS + BSA + LPS + TAT was examined.On the other hand, the low cytotoxicity  percentage of LPS, CuS-BSA NPs and CuS-BSA+LPS  against L20B cells were observed,  while after binding with TAT peptide, the cytotoxicity percentage increased to 61.52% with highly significant effect (P˃0.001)”.

The University of Technology, Iraq is ranked among the top 801+ universities in the World University Rankings 2020 by subject: Engineering & Technology and Computer Science.

After been ranked as the top 1001+ universities in the 2020 Times Higher Education World University Rankings. Once again, The University of Technology, Iraq is ranked among the top 801+ universities in the World University Rankings 2020 by subject: Engineering & Technology and Computer Science.

To view the result, click on the link below:

https://www.timeshighereducation.com/world-university-rankings/2020/subject-ranking/engineering-and-IT

Ranking official hashtag (#THEunirankings)

Materials Engineering Department at the University of Technology grants MSc to the student Ahmed A. Saker for his tagged thesis (Optimization of mechanical properties of the friction mixing welding of two types of aluminum alloys).

The research dealt with frictional mixing welding which is one of the solid-state welding processes and is considered a relatively modern method for welding aluminum alloys similar and non-similar including alloys (5xxx) and (6xxx) series. In this study, the process of friction mix welding was carried out on sheets of aluminum alloys similar and different (AA2024-T3) and (AA6061-T6) with thickness (3.5mm), three different rotation speeds for welding tool (710, 1000, 1400 rpm). A tapered welder was used with three different diameters (12, 14, 16 mm), tilt angle of three-degree (1^o, 2^o, 3^o) and three welding directions (1, 2, 3 times). Several tests such as tensile testing and bending testing were conducted to evaluate the quality of welds and welding safety. Microscopy and hardness were performed on the cross section of the welds in order to study the microstructure and hardness of different welding areas. The SEM-EDS test was used to study the fracture surface after tensile testing of similar and different friction mixing welded samples. Control of quality is possible during the FSW process under ideal conditions under consideration Taguchi Methodological Methods and logic (Fuzzy) based on the required functions. It has been applied to many FSW data of aluminum alloys to achieve better mechanical properties. The quality characteristics (tensile strength, yield strength, elongation, microscopic hardness, durability and friction resistance) have been improved at the same time. The input data are (diameter, rotational speed, linear velocity, tilt angle, and welding direction). At first, the best solution was found for a single target using the Taguchi method and then the optimal multiple targets were combined into a single MPI using Fuzzy based on the desired function to avoid distrust, impression and ambiguity and then imhttps://translate.google.iq/?hl=ar&tab=wTprove (Fuzzy) in this research work. Gradations of this optimal system were obtained using the Taguchi method. Optimal factors and carbonization data were calculated on a multi-performance index (MPI) using response tables, response graph and variance analysis (ANOVA).

The discussion committee consisted of:-

- assist.Prof.Dr. Jawad K. Alaiwi (the head)

- assist.Prof.Dr. Hamed A. Hussein (member from Faculty of Engineering Technology)

- Lec. Ahmed H. Ali (member)

- Prof.Dr Abbas K. Hussein (supervisor from UOT)

 - assist.Prof.Dr. Laith Q. Abbas (supervisor from UOT)

- assist.Prof.Dr. Mohsen A. Abdul Hussein (scientific advisor from University of Baghdad).

- assist .Prof. Dr. Omar F. Lutfi (linguistic advisor).