بحوث التدريسيين لـ قسم تقنيات المختبرات الطبية
The Possible Role of Progesterone Receptors in Prostate Cancer Incidences in the Iraqi Population | ||
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2024 | Frontiers in Bioscience-Scholar | |
Background: Prostate cancer (PCa) is one of the leading diseases causing mortality. It comes in the third rank of common cancer types. It is considered extremely a complicated cancer type since it occurs in highly steroid-responsive and dependent tissues. Many factors are considered to play an important role in the disease progression of PCa, with some functioning at the molecular level. Methodology: After applying the exclusion criteria, 200 patients who underwent proctectomy were included in this study. Following receiving patient consent, blood samples were withdrawn from patients, DNA was extracted, and precise polymerase chain reaction (PCR) amplification was conducted using specifically designed primers. The resulting amplicons were sequenced and analyzed. Results: The progesterone receptor B (PGRB) DNA from patients showed four distinctive single-nucleotide polymorphisms (SNPs) at sites 11:101128812, 11:101128924, 11:101128949, and 11:101128986, which altered the amino acid sequences to Y>N, A>D, T>I, and C>R, respectively, compared to control. These SNPs resided in sensitive sites that either affected the control elements or promoted alterations in the protein configuration. This DNA change diminished the PGR gene function and promoted an imbalance in the encoded PGR protein structure and expression. Conclusions: Many factors may play a role in PCa manifestation, with steroids and progesterone initially noted as factors. Many studies have dealt with the hormonal effect on PCa; however, few have ultimately determined the molecular impact on disease progression. The presence of pathogenic SNPs in the enhancing region of the gene may impact the expression level of PGR. High or low expression levels may negatively affect gene function, which can be considered a reliable factor in prostate tumorigenesis. | ||
Isolation, identification, and assessment of the ability of local Streptomyces isolate from Iraq to utilize crude oil and diesel fuel | ||
2013 | International Journal of Biotechnology | |
Molecular analysis of FSH receptor gene in Iraqi women with PCOS syndrome | ||
2018 | Middle East Fertility Society Journal | |
Polycystic Ovarian Syndrome (PCOS) is a common endocrine disorder in women during their reproductive
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IMPLEMENTATION OF INESFLY PAINT AND SOME INTEGRATED PEST MANAGEMENT ELEMENTS FOR CONTROLLING EPHESTIA SPP. IM DATE PALM ORCHARDS AND DATE WAREHOUSES IN IRAQ | ||
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2018 | International Date Palm Conference / Abu Dhabi-UAE | |
Use of serum calcium squid ink in the food of chicken to increase the nutrition value of the food | ||
2018 | Biological and chemical research journal | |
Phytochemical investigation of antibacterial and antianxiety activities of Enteromorpha spp. Algae | ||
2017 | Molecular pharmaceutical journal |
IMPLEMENTATION OF INESFLY PAINT AND SOME INTEGRATED PEST MANAGEMENT ELEMENTS FOR CONTROLLING EPHESTIA SPP. IM DATE PALM ORCHARDS AND DATE WAREHOUSES IN IRAQ | ||
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2018 | International Date Palm Conference / Abu Dhabi-UAE | |
Potential study at biological control agents and pheromone traps for the control of ephestia spp. In date warehouses of two provinces in iraq | ||
2016 | International journal at entomology research | |
Implementatial nuclear technology inesfly paint and some integrated pest management elements for conteolling ephestia spp in date palm orchards and date warehouses in iraq | ||
2016 | Journal at entomology and zoology studies |
قياس فعالية انزيمات الكبد والبيليروبين الكلي للمرضى المصابين بالاكياس المائية الكبدية | ||
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2008 | مجلة مدينة العلم | |
Spatial and demographic aspect of kala azar (visceral leishmaniasis in Iraq during 2011-2013 | ||
2018 | مجلة جامعة بغداد | |
The distribution of cutaneous leishmaniasis in Iraq:demographic and climate aspects | ||
2017 | Asian biomedicine |
Comparison among different method of DNA extaaction from corn and their role in pcr | ||
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2014 | Journal of Gentic and enviromental resources conservation | |
Biofilm formation by intestinal spore- forming bacilli | ||
2013 | International jouranal for sciences and Technology | |
Qualitative Identification of formalin in local and export milk and his diary products | ||
2016 | Journal of ministry of science and Technology IRAQ |
EFFECT OF AEROBIC-ANAEROBIC EXERCISES ON SERUM COBALT, CHROMIUM, MANGANESE, MOLYBDENUM AND PHOSPHOROUS ELEMENTS | ||
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2022 | Biochemical and cellular archives | |
ABSTRACT The aim of the study is to determine changes in several trace elements in erythrocytes such as cobalt, chromium, |
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Changes in the Cancer Antigen Markers in the Pleural Liquid During Chemotherapy among Ovarian Cancer Patients | ||
2021 | Indian Journal of Forensic Medicine & Toxicology | |
The silent killer or ovarian cancer (OC) is one of the major causes of cancer deaths among women in the |
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Assessment of Neuregulin4 function in patients with polycystic ovary syndrome disorder | ||
2022 | JOURNAL OF PHARMACEUTICAL NEGATIVE RESULTS | |
Subject: Polycystic ovary syndrome (PCOS) is female disorder caused by cysts formation in ovarian that results disorder of hormones secretion and menstrual cycle. Neuregulin 4 (NRG4) is one of adipokines family members synthesis and release via adipose tissues, it acts as activator the epidermal growth factor receptor (EGFR). Objective of the Study: Assessment role of NRG4 in PCOS patients. Materials and Methods: Present study included 30 PCOS patients with 30 controls, the age individuals of tow group at study were 18 years and above of females. At this study measured serum NRG4 level by quantity method for all study individuals, the body mass index (BMI) also measured for all study individuals. Results: Present study explain increase of NRG4 level in serum samples and BMI in PCOS patients group compared with control group. Conclusion: Current study demonstrate role of NRG4 level that act as compensate mechanism in PCOS disorder. |
Impact of Helicobacter pylori in some Blood Parameters Change of Iraqi Patients with Gastritis Disease | ||
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2023 | Iraqi Journal of Biotechnology |
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DOES SECRETOR STATUS AND ANXIETY ARE RISK FACTORS FOR GETTING IRRITABLE BOWEL SYNDROME | ||
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2022 | CHINESE JOURNAL OF MEDICAL GENETICS | |
Irritable Bowel Syndrome (IBS) is a functional disease of gastrointestinal tract (GIT) that affects 10-20% of the population worldwide and is distinguished by abdominal pain/discomfort and changes in bowel habits that is accompanied by diarrhea, constipation, or both. Control-based study was conducted on 50 Iraqi patients with IBS who were presented at private clinics for gastrointestinal diseases (GIDs), along with 20 healthy individuals matched in their age and gender to act as control group. The study lasted from November 2021 to May 2022 and aimed to determine the frequency of IBS subtypes among Iraqi patients, as well as the influence of several factors on disease’s initiation, type and severity such as age and gender, anxiety, obesity, hematological indices, and secretor status. In comparison with control group, patients showed significant higher frequency of severe anxiety and non-secretor cases particularly in those with IBS-c type. However, BMI, blood groups, and all complete blood count parameters revealed non-significant difference between patients and control groups. Among patients of different types of IBS, results showed that blood group A is highly correlated with IBS-d, and IBS-m patients, while blood type O is highly correlated with IBS-c. Also, platelet-lymphocyte ratio (PLR) is significantly associated with IBS types, which is elevated in patients with IBS-c in comparison with other types of disease. It can be concluded that people who are non-secretors and having experience of severe anxiety may be at higher risk for getting IBS. |
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Influence of IL-1ꞵ, Anti-CdtB, and Histamine in irritable bowel syndrome | ||
2023 | Al-Esraa University collage Journal for Medical Science | |
Irritable Bowel Syndrome (IBS) is a common gut disorder that affects approximately 11% of the global population and negatively affects the quality of life of patients and imposes a significant socioeconomic burden. Control-based study was conducted on 42 Iraqi patients with IBS who were presented at private clinics for gastrointestinal diseases (GIDs), along with 20 healthy individuals matched in their age and gender to act as control group. The study aimed to determine the frequency of IBS among Iraqi patients, as well as the influence of biomarkers on disease’s initiation, type and severity such as (IL-1ꞵ, anti- Cytolethal distending toxin B ‘Anti-CdtB’, and histamine). The results showed that constipation subtype of IBS is the most frequent among patients, and females constitute the majority of IBS patients with female: male ratio about 2.23: 1. The levels of IL-1β, anti-CdtB, and histamine are significantly elevated in the serum of IBS patients when compared to their levels in control group. In patients’ group, anti-CdtB showed significant positive correlation with their level of histamine, while correlation between anti-CdtB and IL-1β as well as between histamine and IL-1β are not significant. It can be concluded that anti-CdtB may act as a key player in IBS pathogenesis after disruption gut microbiota which needs further investigation |
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Stability of resistance induced by Escherichia coli in comparison with that carried by clinical isolated in vivo | ||
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2013 | Karbala J. Med | |
Study the effect of two crude ethanolic extracts of eruca sativa and zingiber officinale in comparison with tadalafil on sperm parameter in rats | ||
2016 | Kufa journal for velerinary medical sciensec | |
Rate of induction of resistance in fecal E- cole against cefquinome as compare to ceftriaxone after continuous passage in vivo | ||
2014 | Kufa journal for velerinary medical sciensec |
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Serum and Urine Levels of Cytokeratin-19 in Endometriosis | ||
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2020 | Ann Trop Med & Public Health | |
HLA-G Gene Polymorphism and Soluble HLA-G Serum Level in Rheumatoid Arthritis Patients under Treatment with TNF-γ Antagonists. | ||
2022 | HIV nursing |
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The association between plasma IL-6 levels and several thalassemia-related clinical features in Iraqi patients | ||
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2022 | International Journal of Health Sciences | |
The present study was set to investigate the potential association between the level of Interleukin-6 (IL-6), as a key component of the pro-inflammatory response, with different thalassemia’s biological and clinical features. For this purpose, one hundred fifty blood samples were collected from 100 beta-thalassemia patients, who attended the Genetic Hematology Centre at Ibn Al- Baladi Hospital in Baghdad, Iraq, and 50 healthy subjects who were employed as a control group. IL-6 levels were estimated using an ELISA Kit, whereas other thalassemia-related clinical features (such as HbA, HbF, ferritin, blood transfusions, splenectomy status, and the history of frequent infection) were additionally assessed. The results of the present study showed a significant elevation (P≤0.01) in the levels of IL-6 in thalassemia patients as compared to healthy controls (57.7763± 8.94837 vs. 6.3059± 1.90364 pg/ml, respectively). Furthermore, IL-6 plasma levels seem to be influenced by the number of multiple scheduled blood transfusions, with the higher IL-6 mean level corresponding to the more frequent transfusions. Also, splenectomized thalassemia patients showed significantly higher IL-6 levels than those of non-splenectomized patients (61.2687±9.30688 vs. 56.9571±8.71926 pg/ml, respectively).Additionally, thalassemia patients exhibited a significant increase in HbF and ferritin levels in comparison to the healthy controls (57.1430 vs. 0.5020 g/dL and 2813.7000 vs.56.8220 ng/ml, respectively), whereas the levels of HbA showed a significant drop as compared to the control group (26.8118 vs. 96.1340 g/dL). IL-6 plasma levels correlated positively with ferritin levels (r= 0.611, p≤0.0001) and HbF (r= 0.7501, p≤0.0001). However, IL-6 appears to correlate negatively with HbA (r= -0.885, P≤0.0001) in β-thalassemia patients compared to healthy controls. Overall, the present investigation suggests that the levels of IL-6 in β-thalassemia cases seem to be affected by the multiple scheduled blood transfusions and other disease-associated complications, including splenectomy and elevated ferritin levels, which might influence patients’ susceptibility to infections. |
Differentiation of CD34+ human hair follicles stem cell into functional melanocytes | ||
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2018 | IconMEAS | |
Isolation of CD34+ Human Melanocyte Stem Cells from Hair Follicles. | ||
2019 | Indian Journal of Public Health Research & Development | |
Background: Melanocytes are specialized neural crest-derived cells. They are responsible for hair, skin and eye pigmentation, so they are specialized pigment-producing cells. Melanoblasts are localized in the bulge region of the hair follicle can transform into melanocyte stem cells (MelSCs) or differentiated melanocytes, which produce melanin pigment. It holds promise for functional therapeutic potential and development for the future cell-based therapy of various diseases caused by defective pigment cells like vitiligo. The aim of this study was to isolate melanocyte stem cells from human hair follicle. Methods: The MelSCs CD34+ population was isolated by MagCellect Magnet and assessed for melanocyte stem cell markers by flow cytometry. Results: Results revealed that the isolated CD34+ melanocyte stem cells exhibited higher expression for melanocyte stem cells markers dopachrome tautomerase (DCT) and microphthalmia associated transcription factor (MITF) and differentiation markers melanocytic antigen (PNL2) and tyrosinase (TYR). Conclusion: the study revealed an efficient method of isolation of melanocyte stem cells. The cells were confirmed for their characteristics by flow cytometry analysis of positive and negative markers. Functional analyses of the isolated cells would further confirm its usage in cellular therapies for treatment of skin pigmentation disorders. |
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Biological activity of gum Arabic-coated ferrous oxide nanoparticles | ||
2021 | Modern Physics Letters B | |
In this study, iron oxide nanoparticles (NPs) had been prepared by co-precipitation method. In order to reduce their toxicity and increase stability, prepared iron oxide was coated with gum Arabic. Gum Arabic is preferred over synthetic materials due to their non-toxicity, low cost and availability. Characterization of coated and non-coated iron oxide NPs had been performed by spectrophotometer, Fourier transfer infra-red spectrophotometer (FTIR), Zeta potential, X-ray diffraction (XRD) and field emission scanning electron microscopic (FE-SEM). The fabricated nanoparticles appeared purity and crystalline nature by XRD, with diameter average of 27.01 nm and 55.12 nm for iron oxide NPs and iron oxide NPs coated with gum Arabic, respectively. On the other hand, four biological activities of coated and non-coated iron oxide had been investigated. High removal of methylene blue pollutant dye (46%) was observed with iron oxide NPs, while removal percentage was 22.6 performed by iron oxide NPs coated with gum Arabic within 72 h. Iron oxide NPs revealed high inhibition zones of 27.5 nm and 30 mm, at 1000 μμg/ml, against S. aureus and E. coli, respectively, while coated iron oxide NPs with gum Arabic revealed low antibacterial activity against both examined bacteria even when used at 1000 μμg/ml. The hemolytic activity of prepared NPs had been determined. The hemolytic percentage was increased whenever concentrations of nanoparticles increased. Lower hemolytic percentages were 69.76 and 50.98 for iron oxide NPs and iron oxide NPs coated with gum Arabic were observed at a concentration of 250 μμg/ml. Finally, cytotoxic activity was estimated against MCF-7 cell line and normal cell line WRL68 by MTT assay. A decrease in MCF-7 viability to 65.1% was observed when 400 μμg/ml of iron oxide NPs was used, while WRL68 viability was 75.03%. Iron oxide NPs coated with gum Arabic revealed significant reduction in MCF-7 and WRL68 viability to 69.90% and 80.05%, respectively, when 400 μμg/ml of nanoparticles was applied. |
Role of proteus mirabilis DNA in comparison to candida albicans DNA in rats joints infection | ||
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2014 | Iraqi journal of science | |
prevalence of diarrheagenic Escherichia coli in children and characterization of some virulence factors from different hospitals in Baghdad | ||
2018 | ||
assessment the gene expression of sigma factor (RPOS) under ceftriaxone stress in pathogenic Escerichia coli | ||
2019 |
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Investigation of the relationship between the anticancer effect of bortezomib in HL-60 promyelocytic leukemia cells and the JAK/STAT signaling pathway | ||
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2023 | ِAksaray university | |
The JAK/STAT (Janus Kinase Transducers and Activators of Transcription) signaling pathway is involved in many cellular events such as cell growth, development, survival, tumorigenesis, and cell differentiation. But it is critical for immune cells and hematopoietic cells. Proper functioning of JAK/STAT pathway is necessary for the normal formation of blood cells. Mutations that may occur in this pathway may cause hematological cancers by disrupting JAK/STAT functionality. Leukemia is a type of hematological cancer of myeloid and lymphoid origin. JAK/STAT signaling pathway has become one of the appropriate targets in the treatment of leukemia, one of the hematological cancers. Therefore, in our study, the expression levels of JAK/STAT signaling pathway genes were investigated in bortezomib-treated HL-60 (acute myeloid leukemia) cell line to elucidate the role of JAK/STAT signaling pathway in hematological cancers. HL-60 leukemia cell line was propagated in cell culture. MTT analysis was performed to determine the IC50 value of bortezomib applied to the cell line. Then, cDNA synthesis was performed by RNA isolation. Expressions of JAK1, JAK2, JAK3, STAT1, STAT3, STAT5A and STAT5B genes in the JAK/STAT signaling pathway were analyzed using Real-Time qPCR. According to our findings, it was determined that JAK1, JAK2 and JAK3 gene expressions in the HL-60 cell line were statistically significantly decreased at all bortezomib doses. A significant decrease was observed in STAT1, STAT5A and STAT5B gene expressions at all doses. However, no decrease was observed in STAT3 gene expression at 20nM, while a lesser decrease was detected at other doses compared to STAT1 and STAT5(A,B) genes. In conclusion, bortezomib showed its anticancer effect on HL-60 leukemia cells by suppressing the JAK/STAT pathway. Thus, it may be possible to develop alternative treatment strategies for patients with acute myeloid leukemia by developing new inhibitory drugs specific to these suppressed JAK/STAT genes. Keywords: Acute .Myeloid Leukemia, HL-60 Cell Line, Bortezomib, JAK/STAT Signaling Pathway, Real-Time qPCR |
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Hepcidin and CRP Levels in a Sample of Iraqi Hypothyroid Patients Treated with Levothyroxine | ||
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2024 | Ibn AL-Haitham Journal For Pure and Applied Sciences | |
Abstract Study of hypothyroidism and its relationship to the levels of the hormone hepcidin and C-reactive protein in people treated with levothyroxine. This study was carried out between November 2022 and March 2023. The study had a total of 90 male and female participants with an average age of 25 to 50 years old. All samples were obtained from both hospitals in Baghdad and the Medical Lab. The diagnosis of hypothyroidism based on symptoms and the hypothyroidism control test score led to the collection of 30 samples from healthy individuals, 30 from those with untreated hypothyroidism, and 30 additional samples. From people with hypothyroidism who were treated with levothyroxine, where the necessary tests were conducted for the three groups, Blood samples were collected in a gel tube, and serum was separated for use in their respective measurements of (TSH, T3, T4, CRP, and hepcidin. According to the results, there were no significant differences in the mean patient’s age (p=0.419) or gender distribution (p=0.638) between the three studied groups. When thyroid function tests were done on the groups that were studied, the hypothyroid patients had significantly lower levels of triiodothyronine (T3) and thyroxine (T4) and higher levels of thyroid-stimulating hormone (TSH) before treating them (p< 0.001). And the highest serum hepcidin and CRP levels (11.77 ± 0.98 and 14.61 ± 2.49 respectively) were found in group 1 patients. On the contrary, the lowest levels (7.61 ± 1.56 and 3.19 ± 0.29, respectively) were present in group 2 patients. In healthy subjects, the hepcidin and CRP levels were 8.45 ± 0.53 and 3.51 ± 0.91, respectively.Accordingly, there was a significant difference in hepcidin and CRP levels between the three studied groups, and the results showed a decrease in hepcidin and C-reactive protein after treatment. |
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Estimating the parameters of the GARCH model for the Polya distribution with a practical application | ||
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2024 | مجلة الادارة والاقتصاد | |
Abstract The research aims to study time series with high volatility (volatility) , in which the problem of autoregressive conditional on the heterogeneity of variance in the case of intermittent distributions , that is when its observations have integer values . The INGARCH model was studied when the series follows the Polya distribution , which was Studying the model theoretically and practically , and then estimating the model parameters using the maximum likelihood method (MLE) , and in the applied aspect , data on the number of transactions of the Sumer Commercial Bank in the Iraqi Stock Exchange was used , where the presence of the ARCH effect was tested using the Ljung - Box Test and (ARCH Test) It became clear from the two tests that the data suffers from the problem of heterogeneity of variance (ARCH) , and finally it was concluded that the model that explains the fluctuations in the number of transactions of Sumer Commercial Bank is the INGARCH (2.0) model , based on the results of the two standards AIC and BIC . |
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Estimation the level of il-17a in a sampleof type 1 diadetis mellitus patients | ||
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2014 | IOSR Journal of pharmacy | |
Changes of some electrolyte in non diabetic patients suffering from kidney disease | ||
2015 | المؤتمر العلمي الاول للتخصصات الصحيه والطبيه | |
Most common cause of Repeated aborrtion in women in Nasrriya | ||
2015 | Medical Journal of Babylon |
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بحوث التدريسيين لـ قسم تقنيات صناعة الاسنان
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Influence of microstructural changes on corrosion behaviour of thermally aged Ti-6Al-7Nb alloy | ||
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2004 | Materials and Corrosion | |
Abstract Solution treatment and ageing (STA) is an effective strengthen- oped were analyzed using XRD. The influence of microstructure on |
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Surface characterization of passive film formed on nitrogen ion implanted Ti–6Al–4V and Ti–6Al–7Nb alloys using SIMS | ||
2003 | Corrosion Science | |
Abstract The aim of this paper is to study the effect of Nþ ion implantation on corrosion and phase |
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Nitrogen ion implantation and in vitro corrosion behavior of as-cast Ti–6Al–7Nb alloy | ||
2002 | Corrosion Science | |
Abstract In the present investigation, surface modification of Ti–6Al–7Nb alloy with nitrogen ions is |
Investigation of some Immunological Parameters in Psoriatic Iraqi Female Patients | ||
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2020 | Iraqi journal of Science |
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Design and implementation of the planar inverted-F antenna using computer simulation technology for wireless applications | ||
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2023 | International Journal of Nonlinear Analysis and Applications | |
The Planar Inverted-F antenna (PIFA) is becoming more popular in the new multi-band mobile phone industry for transceiver systems of wireless communication systems. The purpose of this paper is to design and implement a planar inverted-F antenna for wireless communication. This device can work in the S-band resonance frequency range. Because the antenna is a quarter wavelength, the antenna size and return loss are reduced. The practical results of the used antenna showed that the return loss is about 34.20 dB, the voltage Standing Wave Ratio(VSWR) is 1.18258, and the bandwidth is 220 MHz. Theoretically, the directivity, gain, and input impedance values were also calculated as 5.617 dB,5.247 dB, and 50 Ω, respectively. Therefore, the desired antenna is considered to perform well in terms of return loss and voltage. It can be utilized in Bluetooth, Wi-Fi, and Long Term Evolution (LTE) applications in fourth-generation cellular communications (4G). | ||
Design of Inverted F-Shape Antenna at 2.35 GHz for S-Band Applications | ||
2022 | Al-Nahrain Journal of Science | |
In this work, a simulation model of planar inverted F antenna (PIFA) will be presented with the radiating plate that has been connected to ground plane that has been accompanied by shortening plate and the FR4 substrate between ground plane and radiating plate. Where PIFA was built using computer simulation technology (CST) for the studio microwave (2019 release). The simulation model has been studied for return loss (S-parameter), bandwidth (BW), voltage standing wave ratio (VSWR), and input impedance (Zin) which are −21.875406dB, 301MHz, 1.1752855, and 50 , respectively. The simulation results showed that the PIFA component covers a wide frequency band ranging between 2.202 and 2.504 GHz, which can be used in Bluetooth, Wi-Fi, and Long Term Evolution (LTE) applications that are used in the fourth generation cellulares communications. | ||
Potential of Nanocages (Ni-Si52, Ni-C52 and Ni-B26N26) and Nanotubes (Ni-SiNT (6, 0), Ni-CNT (6, 0) and Ni-BNNT (6, 0)) for CO2 Reduction Reaction | ||
2024 | Silicon | |
The abilities of Ni-Si52, Ni-SiNT(6, 0), Ni-C52, Ni-B26N26, Ni-CNT (6, 0) and Ni-BNNT (6, 0) as catalyst of CO2-RR to CH4 are compared. The Eadoption and Eformation of Ni-Si52, Ni-SiNT(6, 0), Ni-C52, Ni-B26N26, Ni-CNT (6, 0) and Ni-BNNT (6, 0) are stable parameters. The Eadoption of CO2-RR on Ni-Si52, Ni-SiNT(6, 0), Ni-C52, Ni-B26N26, Ni-CNT (6, 0) and Ni-BNNT (6, 0) are − 3.34, -3.47, -5.42, -3.81, -3.99 and − 5.89 eV. The HCOOH, CO, HCOH, CH3OH and CH4 adsorption as important products for CO2-RR on Ni doped nanotubes an nanocages are examined. The Eformation of CO2-RR on Ni-Si52, Ni-SiNT(6, 0), Ni-C52, Ni-B26N26, Ni-CNT (6, 0) and Ni-BNNT (6, 0) are − 4.27, -4.39, -4.51, -4.87, -5.02 and − 4.92 eV. The CO2-RR mechanisms on Ni doped nanotubes and nanocages are examined. The overpotential of CO2-RR on Ni-Si52, Ni-SiNT(6, 0), Ni-C52, Ni-B26N26, Ni-CNT (6, 0) and Ni-BNNT (6, 0) are 0.338, 0.327, 0.331, 0.304, 0.295 and 0.296 V. The Overpotential of CO2-RR on Ni-C52, Ni-B26N26, Ni-CNT (6, 0) and Ni-BNNT (6, 0) are lower than metal catalysts. The Ni-Si52, Ni-SiNT(6, 0), Ni-C52, Ni-B26N26, Ni-CNT (6, 0) and Ni-BNNT (6, 0) is processed the CO2-RR. |
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Development of PCR Primer and 16s rDNA sequencing for gram negative (Salmonella spp) bacteria isolated from poultry meat | ||
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2019 | https://doi.org/10.31032/IJBPAS/2019/8.4.4682 | |
Diagnosis of Escherichia coli urinary tract infection and multiple drug resistance isolated Educational City Al-Sader in Najaf | ||
2021 | Annals of Romanian society of biology |
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بحوث التدريسيين لـ قسم تقنيات الاشعه
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Preparation CdSe Quantum Dots using laser ablation technique for Dye-Sensitized Solar Cell | ||
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2021 | International Journal of Nanoelectronics and Materials | |
Performance augmentation of a solar air heater using herringbone metal foam fins: An experimental work | ||
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2021 | International Journal of Energy Research |
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"Modified laser-etched silicon covered with bimetallic Ag–Au Alloy nanoparticles for high-performance SERS: laser wavelength dependence.", | ||
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2020 | Springer, Indian Journal of Physics (2020): 1-9. | |
AbstractThe effect of etching laser wavelength on the performance of bimetallic alloy Ag–Au nanoparticles (Ag–AuNPs) SERS-active substrate was investigated. Two kinds of macro-P-Si structures were synthesized by a laser-assisted etching process using two laser wavelengths 650 and 532 nm. Ag–AuNPs/macro-P-Si SERS-active substrate was made up via the ion reduction process. The SERS-active substrates were investigated by utilizing XRD, FE-SEM microscope, EDS analysis and Raman microscope. P-Si surface modification process by bimetallic alloy Ag–AuNPs was carried out to form efficient and nearly uniformly distributed Ag–AuNPs hot spot regions with ultra-high specific surface areas. The morphological features of the deposited Ag–AuNPs on the P-Si layer prepared by 650 nm exhibited that the nucleation process is mainly concerted on the pore boundaries with a low tendency for aggregation, while for 532 nm, the Ag–AuNPs layer is mostly well ordered of high-density semi-uniformly distributed spherical nanoparticles initiate over the macro-P-Si. The SERS results of Ag–AuNPs/macro-P-Si exposed a strong dependence on the hot spot regions among bimetallic nanoparticles. The enhancement factor of the Raman signal of Ag–AuNPs/macro-P-Si modified with 532 nm is four orders of magnitude greater than that of modified with 650 nm, which is about 2.1 × 1012 and 9.3 × 108, respectively. |
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Optimizing plasmonic characteristics of Ag-AuNPs/Nanohillocks Si Heterostructures for efficient SERS performance | ||
2020 | International Journal of Nanoelectronics and Materials (IJNeaM) (2020) | |
ABSTRACT Tunable bimetallic Ag-Au nanoparticles (Ag-AuNPs) and hot spot regions were created through the reduction of Ag-Au ions onto nanohillock silicon surfaces. A set of as-prepared textured silicon substrates with different nanohillock topographies was synthesised by a wet potassium hydroxide (KOH) chemical etching process on crystalline silicon for incubation times from 4 to 10 min. These structures were explored as a substrate for optimizing the plasmonic characteristics of Ag-AuNPs/nanohillocks Si surface-enhanced Raman scattering (SERS) heterostructures. The goal of this paper is to create sufficient SERS heterostructures with a high enhancement and exceptional reproducibility. The nanohillock Si substrate was employed to create nearly homogeneously distributed AgAuNPs and hot spot regions with extraordinary specific surface area (S.S.A.) values. Plasmonic characteristics of the created Ag-AuNPs were investigated and analysed based on the surface features of the substrate via atomic force microscopy (AFM), field emission scanning electron microscopy (FE-SEM), X-ray diffraction spectroscopy (XRD), energydispersive X-ray spectroscopy (EDS) and Raman measurements. Tunable Ag-AuNPs sizes and hot spot regions were synthesized by controlling the incubation time of the wet KOH chemical etching process. The density and size distribution, and hence the plasmonic characteristics of the Ag-AuNPs and hot spot regions, were improved significantly with increasing surface roughness and average hillock height of the substrate and specific surface area of the Ag-AuNPs. A high enhancement factor of 3.7×1013 with a minimum reproducibility deviation of about 4% was attained in 10−14 M rhodamine 6G dye for an 8 min etching incubation time.
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Optimization of an ultra-sensitive-Au core-shell nanoparticle/Si Surface-enhanced Raman scattering (SERS) sensor | ||
2020 | AIP Conference Proceedings 2307, 020005 (2020) | |
Well-controlled Ag core/Au shell nanoparticles (NPs) of various shell thicknesses were synthesized in water using a laser ablation process via a low energy 1060 nm Nd-YAG laser with fluence of approximately 14 J/cm2 and a 1 Hz pulse repetition. Ag core NPs with a mean diameter of 42 nm were prepared by circa 300 pulses of a fixed energy fluence of 14 J/cm2, while Au NPs ranging from 10 to 45nm shell thickness were achieved by delivering pulses of 250 to 400nm to the Au plate. Ag core/Au shell NPs surface-enhanced Ramen scattering (SERS) sensors were synthesized by depositing the resulting bimetallic NPs onto silicon substrates using a drop casting process. The composition of the synthesised SERS sensors was confirmed using field emission scanning electron microscopy FE-SEM, HRTEM, Ultraviolet-visible spectroscopy UV-vis, XRD diffractometer, and Raman microscopy. These results showed that the performance of the novel SERS substrate had a significant effect on NPs shell thickness. The shell thickness was improved by a factor of 4.8x1011 to 1.2 x1014 for 250 to 400 nm, respectively, due to the hotspot dynamics of the core/shell NPs.
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بحوث التدريسيين لـ قسم تقنيات العلاج الطبيعي
Synthesis And Studied Structural and Morphological Properties of 1-Dimensional Zno-Ag2O-Ag Nanowire | ||
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2022 | IOP Conference Series: Earth and Environmental Science | |
1-dimensional zinc oxide (ZnO) - silver oxide (Ag2O) – silver (Ag) nanowire was prepared using a simple and inexpensive bottom-up chemical method. X-ray diffraction (XRD) results showed the presence of diffraction peaks of ZnO and Ag2O with hexagonal wurtzite phase of ZnO. Energy Dispersive X-ray (EDX) results showed the presence of energy peaks of Zinc (Zn), Silver (Ag), and Oxygen (O) elements. Filed Emission Scanning Electron Microscopy (FE-SEM) results showed that the surface morphology is nanowire (1-dimensional structure) with shapes similar to hedgehog spines and have small nanoscale diameters. The present work represents a promising step in the preparation of a 1-dimensional nanowire. |
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Preparation and Antibacterial Activity of Superhydrophobic Modified ZnO/PVC Nanocomposite | ||
2021 | Journal of Bionic Engineering | |
We fabricated a superhydrophobic modified ZnO/PVC nanocomposite cluster with antibacterial properties using the chemical precipitation method and selected solvent/non-solvent (THF/ethanol) to PVC. The effects of ethanol content (47%, 50%, 53%, and 56%) on nanocomposite morphology and Water Contact Angles (WCAs) were investigated. XRD measurements confirmed the polycrystalline structure of ZnO with a wurtzite hexagonal phase, and EDX results indicated the presence of all element peaks. FESEM analysis of specimens revealed a rough surface structure resembling a cluster of NPs, and that structure was dominant when the ethanol content increased to 56%. The WCA increased on the superhydrophobic nanocomposite as ethanol content increased, and an optimum WCA (160° ± 2°) was obtained at an ethanol content of 56%. Antibacterial activity was tested on the superhydrophobic and hydrophobic states, and the superhydrophobic specimens showed good inhibition against Klebsiella spp. and Staphylococcus epidermidis. However, the hydrophobic specimens demonstrated no antibacterial activity against S. epidermidis. These promising results can inform the development of nanocomposites for many environmental applications. |
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Preparation of superhydrophobic Ag/Fe2O3/ZnO surfaces with photocatalytic activity | ||
2021 | Surface Engineering | |
Combining photocatalytic and superhydrophobicity characteristics on the same surface remains a challenge. In this work it was overcome that challenge by fabricated Ag/Fe2O3/ZnO heterostructure surfaces via using a simple precipitation method; stearic acid (SA) was then employed to improve the roughness and increase the water contact angles (WCA) of the surfaces. The effects of SA and Ag/Fe2O3 on superhydrophobicity and photocatalytic characteristics were investigated. The wettability measurements confirmed that the WCA of the surfaces increased from 60 ± 2° to 154 ± 2° after modification with SA due to the formation of a hierarchical structure. To evaluate the photocatalytic performance of samples, methylene blue (MB) dye was irradiated under visible light with quick photodecomposition of MB after 80 min of irradiation. Finally, this innovative approach can be utilized to develop scaled-up self-cleaning applications. |
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بحوث التدريسيين لـ قسم تقنيات البصريات
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Design of All-Reflecting Aplanatic Objective | ||
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2013 | Iraqi Journal of Applied Physics (IJAP) | |
Design of micro size optical scanner systems | ||
2012 | Eng. &Tech. Journal (الجامعة التكنلوجيه) | |
A new type of compact well-baffled telescope configuration | ||
2012 | International Journal of Basic & Applied Sciences (IJBAS) |
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بحوث التدريسيين لـ تقنيات التجميل والليزر
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