Quantitative analysis of pharmaceutical tablets using LIBS-Technique
Naser
Almsellati
Physics Department, Almargeb University, Libya
author
Omhani
Swesi
Physics Department, Almargeb University, Libya
author
Sabria
Aladuli
Physics Department, Almargeb University, Libya
author
text
article
2019
eng
Laser-induced breakdown spectroscopy (LIBS) is a type of atomic emission spectroscopy which uses a highly energetic laser pulse as the excitation source. In principle, LIBS can analyze any matter regardless of its physical state, solid, liquid or gas. LIBS may be used to evaluate the relative abundance of each constituent element, or to monitor the presence of impurities. The present experiments reveal that in addition to the presence of carbon, hydrogen, nitrogen and oxygen, which can be primarily attributed to the active pharmaceutical ingredients, specific inorganic atoms were also present in all the tablets. Initial attempts at classification by a ratio metric approach using oxygen (777 nm) to nitrogen (742.36 nm, 744.23 nm and 746.83 nm) compositional values yielded an optimal value at 746.83 nm to provide an acceptable classification.
International Journal of Development
Egyptian Academic Society for Environmental Development
2314-5536
8
v.
1
no.
2019
1
7
https://ijd.journals.ekb.eg/article_64025_8ada9e5ad2a36d5d33adc1a8e58c11b9.pdf
dx.doi.org/10.21608/idj.2019.64025
A marine Turbellaria Planocera crosslandi (Laidlow, 1903) at Fayed-Great Bitter lake- Suez Canal, Egypt
Samir
Beltagi
Department of Biological and geological sciences
author
text
article
2019
eng
ABSTRACT
This research work has its taxonomical and zoogeographical importance and had taken into consideration the detailed description of the male and female genital systems of the Turbellaria Planocera crosslandi from Fayed-Great Bitter lake- Suez Canal , Egypt. New scientific findings were added, regarding the different types of chitinous spines to the internal epithelium regarding the cirrus of the male copulatory organ. Moreover, a detailed description of the Nervous system had been done, also the sense organs.
International Journal of Development
Egyptian Academic Society for Environmental Development
2314-5536
8
v.
1
no.
2019
9
21
https://ijd.journals.ekb.eg/article_64028_caef54f433c1dc5f2c5da89a0fdfb105.pdf
dx.doi.org/10.21608/idj.2019.64028
Histological and histochemical studies of the esophagus and stomach in two types of birds with different feeding behaviors
Ahmed
AbdElnaeem
Zoology Department, Faculty of Science, Al-Azhar University, Cairo, Egypt
author
Fathy
Elshaer
Zoology Department, Faculty of Science, Al-Azhar University, Cairo, Egypt
author
Mohammed
Rady
Zoology Department, Faculty of Science, Al-Azhar University, Cairo, Egypt
author
text
article
2019
eng
The present work aims to investigate the morphometrical, histological, and histochemical, aspects of the esophagus and stomach in two different Egyptian birds having different food habits. The animals under investigation are Kingfisher (Halcyon smyrnensis), and Hoopoe (Upupa epops). These birds were caught from Abou-Rawash Constituency and Nile Delta in Egypt. The birds were dissected; after which the esophagus and stomach were fixed and stained for the comparative histological study.
From the current results, it was revealed that, there are some morphometric differences between kingfisher and hoopoe in both esophagus and stomach. The esophagus wall in Kingfisher composed of only three layers or tunics: mucosa, muscularis and adventitia arranged from the inside to outside, referring to the absence of tunica submucosa;whereas, the esophagus of the Hoopoe consists of four distinct functional layers; mucosa, submucosa, muscularis and the outermost serosa. Stomach in the two studied birds is divided into two parts, glandular or true stomach (proventriculus) and the muscular stomach or gizzard (ventriculus). The glandular stomach showed moderate differences in length and width between kingfisher and hoopoe.The mucosa of proventriculus in the kingfisher consists of number of large compound folds which appear as finger-shaped structures with gastric pits; mucous cells are most conspicuously distinguished by their "empty" appearance. While, the mucosa of proventriculus in the hoopoe have both parietal cells and chief cells which occur in the middle portion of gastric glands. The gizzard wall has a thick keratinized layer called koilin, the secretion of the gizzard glands forms the koilin in hoopoe but in kingfisher the gizzard wall is small and very thin keratinoid lining.
International Journal of Development
Egyptian Academic Society for Environmental Development
2314-5536
8
v.
1
no.
2019
23
40
https://ijd.journals.ekb.eg/article_64030_9e119ba1e7ab18e86bbde1df12416543.pdf
dx.doi.org/10.21608/idj.2019.64030
Amelioration of mesoporous surface by varying concentration of ZnO to eliminate Methylene blue: characterization, kinetics modules and thermal parameter
Lalia
Foud
1- Department of Chemistry, Faculty of Science, Al-Azhar Univ. (Girl branch), Cairo, Egypt
author
Abeer
Emam
Department of Chemistry, Faculty of Science, Al-Azhar Univ. (Girl branch), Cairo, Egypt
author
Asmaa
Eldeen
Department of Chemistry, Faculty of Science, Al-Azhar Univ. (Girl branch), Cairo, Egypt
author
Marwa
Ibrahim
Department of Chemistry, Faculty of Education, Ain Shams Univ., Roxy,Cairo, Egypt
author
Mona
Seif
Department of Chemistry, Faculty of Education, Ain Shams Univ., Roxy,Cairo, Egypt
author
text
article
2019
eng
Adsorption assessment of ZnO-SiO2 (ZSnc) by UV/Vis spectro-photometery was used to monitor the removal of the cationic dye (MB)from waste waters. Silica nanoparticles with a high adsorption capacitywere prepared by sol-gel method. SiO2 modification was done bydissolving various ratios of zinc oxides at 10%, 30%, 50%, 70% and 90%.With a view to explain the adsorptive characteristics, they were portrayed by XRD, TEM, EDX, SEM, N2adsorption/desorption isotherms techniques and FT-IR.
The results showed that anamorphous shape and porous structure were obtained by the sol-gel method. The calcination time of nanomaterial and concentration of MB have a significant effect on the adsorption efficiency. The equilibrium data were evaluated using the Langmuir and Freundlich isotherms in order to determine the best adjustment to the experimental data. Langmuir model has been the most appropriate for fitting the experimental data. Additionally, the adsorption kinetics is best described by the pseudo-second order model at a different concentration. Values demonstrated that the adsorption process is exothermic, spontaneous, and favorable. The results elucidated the potential for a new utilize of mesostructured nanomaterial as an active adsorbent.
International Journal of Development
Egyptian Academic Society for Environmental Development
2314-5536
8
v.
1
no.
2019
43
53
https://ijd.journals.ekb.eg/article_64034_aa3c5bf165c2db53d7787d3ea9d5928b.pdf
dx.doi.org/10.21608/idj.2019.64034
Effect of anionic surfactant on mesoporous particles for removal of methylene blue
Abeer
mam
Department of Chemistry, Faculty of Science, Al-Azhar Univ. (Girl branch), Cairo, Egypt
author
Lalia
Foud
Department of Chemistry, Faculty of Science, Al-Azhar Univ. (Girl branch), Cairo, Egypt
author
Asmaa
Eldeen
Department of Chemistry, Faculty of Science, Al-Azhar Univ. (Girl branch), Cairo, Egypt
author
Marwa
Ibrahim
Department of Chemistry, Faculty of Education, Ain Shams Univ., Roxy,Cairo, Egypt
author
Mona
Seif
Department of Chemistry, Faculty of Education, Ain Shams Univ., Roxy,Cairo, Egypt
author
text
article
2019
eng
ZnO-SiO2 (ZSnc) nanoadsorbent was prepared by sol-gel method in the presenceof SDS as anionic surfactant (10-3, 6 x 10-4, and 10-4mol/l),for removing methylene blue (MB) from wastewater. The papered nanomaterials were characterized by XRD, TEM and surface area analysis. The factors affecting adsorption were thoroughly investigated and optimized. The mechanisms and kinetics of adsorption were explored.
International Journal of Development
Egyptian Academic Society for Environmental Development
2314-5536
8
v.
1
no.
2019
55
63
https://ijd.journals.ekb.eg/article_64035_558b2eb762cf3696ff10b0e8b755d449.pdf
dx.doi.org/10.21608/idj.2019.64035
Breast cancer subtypes criteria versus clinicopathological data
Mohamed
Fares
Department of Zoology, Faculty of Science, Al-Azhar University, Cairo, Egypt
author
Sherif
Ibrahim
Department of Zoology, Faculty of Science, Cairo University, Egypt.
author
Mohamed
El-Shinawi
Department of General Surgery, Faculty of Medicine, Ain Shams University, Egypt.
author
Mona
Mohamedamed
Department of Zoology, Faculty of Science, Cairo University, Egypt.
author
text
article
2019
eng
Breast cancer in women is the second most frequent cancer incidence, the breast cancer cases with varied histopathological and biological aspects reflect different attitudes that result in various therapy responses and should be given different therapeutic strategies.This study aimed to differentiate the breast cancer due to the histopathological and molecular criteria, the first is inflammatory breast cancer (IBC) or non-IBC, and the second is hormonal positive breast cancer (HP BC) or triple negative breast cancer (TN BC), and the third is lymphovascular invasion positive (LVI-p) or lymphovascular invasion negative (LVI-n).Overall 78 female diagnosed with breast carcinoma were enrolled in this study. Using pathological, histological and molecular criteria to differentiate the breast cancer groups in tissue samples, and then we were statistically displayed some histopathological and molecular features for each group. The results indicated that most common age in breast cancer patient is 50, the tumor size in IBC, TN BC and LVI-p is significantly higher than non-IBC, HP BC and LVI-n respectively, the most common tumorgrade is grade II, the nodal status in IBC and TN BC is significantly higher than non-IBC and HP BC respectively, 95% of IBC and 87 % of non-IBC patients are diagnosed as invasive ductal carcinoma, and 5% of IBC and 8 % of non-IBC patients are diagnosed as invasive lobular carcinoma.
In conclusion statistical analysis of breast cancer clinicopathological data might help in improving of cancer treatment strategies.
International Journal of Development
Egyptian Academic Society for Environmental Development
2314-5536
8
v.
1
no.
2019
71
80
https://ijd.journals.ekb.eg/article_64038_96d0078a23d6b1430796dc112f664c88.pdf
dx.doi.org/10.21608/idj.2019.64038
Methylene blue removal from wastewater using silica/corncob nanocomposite
Kholod
Kamal
Water Pollution Research Department, National Research Center, El-Buhouth St., Dokki, Cairo P.O. 12622, Egypt
author
Mohamed
Attia
Chemistry Department, Faculty of Science, Ain Shams University, Abbassia, 11566, Cairo, Egypt
author
Nabila
Ammar
Water Pollution Research Department, National Research Center, El-Buhouth St., Dokki, Cairo P.O. 12622, Egypt
author
Enas
Abou-Taleb
Water Pollution Research Department, National Research Center, El-Buhouth St., Dokki, Cairo P.O. 12622, Egypt
author
text
article
2019
eng
Silica/corncob nanocomposite was prepared for remove of methylene blue. Fourier transform infrared (FTIR) spectrophotometry, X-ray diffraction (XRD), Scanning electron microscopy (SEM), dispersive energy x-ray spectrometer (EDX), High-resolution transmission electron microscopy (HR-TEM), and Zeta potential measurements were performed to reveal functionality, crystal structure, morphology, and point of zero charge of the synthesized sorbents. The effect of contact time, initial dye concentration, pH and sorbent dose were evaluated to study the removal efficiency and the adsorption capacity for silica/corncob nanocomposite. The equilibrium concentration of dye was measured by spectrophotometer. Adsorption isotherms and kinetics were also evaluated and reported. The removal efficiency of silica/corncob nanocomposite was (98%).
International Journal of Development
Egyptian Academic Society for Environmental Development
2314-5536
8
v.
1
no.
2019
81
93
https://ijd.journals.ekb.eg/article_64039_a113150d721f495015cea59abe32cc4f.pdf
dx.doi.org/10.21608/idj.2019.64039
Catalytic performances of traditional ɣ-Al2O3, Graphene Oxide and Graphene oxide-alumina in transesterification of oil to biodiesel
Basant
Salib
Chemistry Department, Faculty of Science, Ain Shams University,
11566 Abassia, Cairo, Egypt
author
Hany
Abdel Dayem
Chemistry Department, Faculty of Science, Ain Shams University,
11566 Abassia, Cairo, Egypt
author
Fouad
El-Hosiny
author
text
article
2019
eng
The catalytic properties of alumina (ɣ-Al2O3), Graphene Oxide (GO) and Graphene Oxide –alumina was studied in transesterification of sunflower oil to biodiesel. The catalytic tests were carried out at standard reaction conditions; reaction temperature 60˚C, methanol to oil ratio 12:1, catalyst to oil ratio 1:100 and reaction time 1 hr.In the case of graphene oxide samples their performances in conversion of oil to biodiesel depends on the method of preparation. On the other hand, the catalytic activity results showed that addition of graphene oxide to alumina significantly improved its transesterification reaction where, conversion increased from 13% for neat alumina and 18% for GO to 28% for GO-alumina. This effect was attributed to that GO-alumina had higher amounts of acidic sites than its parent materials.
International Journal of Development
Egyptian Academic Society for Environmental Development
2314-5536
8
v.
1
no.
2019
95
104
https://ijd.journals.ekb.eg/article_64040_0796b1a49929d161d6c47567ae8d5d1a.pdf
dx.doi.org/10.21608/idj.2019.64040
Cobalt doped carbon xerogels as efficient supercapacitor electrodes
Hany
Afify
Chemistry Department, Faculty of science, Ain-Shams Univ., Abassia, Cairo, 11566, Egypt
author
Abdalla Abdelwahab
Abdalla Abdelwahab
Materials Science and Nanotechnology Department, Faculty of Postgraduate Studies for Advanced Sciences (PSAS), Beni-SuefUniversity, 62511 Beni-Suef, Egypt
author
Hesham
Abdel-Samad
Chemistry Department, Faculty of science, Ain-Shams Univ., Abassia, Cairo, 11566, Egypt
author
Hamdy
Hassan
Chemistry Department, Faculty of science, Ain-Shams Univ., Abassia, Cairo, 11566, Egypt
author
text
article
2019
eng
Carbon xerogel and cobalt doped carbon xerogel are successfully prepared from resorcinol-formaldehyde monomers by the sol-gel process. N2 adsorption/desorption isotherms technique are used to characterize the surface texture and pore size distribution of prepared samples. The measured BET specific surface areas for the carbon xerogel and the cobalt doped carbon xerogel are 796.9 and 701.9 m2.g-1, respectively. These materials were tested as electrodes in a symmetric supercapacitor two-electrode configuration using 1M H2SO4 electrolyte by means of cyclic voltammetery technique. The cobalt doped sample exhibits relatively high specific capacitance of 231 F.g-1 (at 0.1 A.g-1). The presence of cobalt species inside the carbon structure of xerogel lead to lowering the specific surface area, increasing the mesoporosity and consequently enhancing the accessibility for electrolytic ions inside the pores of the cobalt doped samples.
International Journal of Development
Egyptian Academic Society for Environmental Development
2314-5536
8
v.
1
no.
2019
105
111
https://ijd.journals.ekb.eg/article_64041_68362b88d757b01453f37df847a8be1b.pdf
dx.doi.org/10.21608/idj.2019.64041
Biophysical study to enhancement of apoptosis in colon cancer cell line using silver nanoparticles driven by extremely low frequency magnetic field and electroporation
Ebtesam
Mohamad
Biophysics Department, Faculty of Science, Cairo University
author
text
article
2019
eng
Extremely low frequency magnetic field (EMF) with an intensity of 0.01 mT is used to intensify the effect of the Silver nanoparticles (SNPs) as an anticancer agent. EMF stimulates the movement and vibration of SNPs that may enhance the apoptotic process in colon cancer (CaCo2 cell lines). Electroporation (EP) is used to improve targeting of cancer cells,where pulsed electric field (200V) creates hydrophilic gaps in cell membrane leading to elevated SNPs transport into colon cancer cells. CaCo2 cell lines are divided into 6 groups according to treatment type. Results show a clear accumulation during the G2/M phase of arrested cells accompanied by an extremely significant apoptotic percentage 7.59 % for cell lines treated with silver nanoparticles, electroporated and then exposed to electromagnetic field (0.01mT) for 1 hr (EP+ EMF+SNPs+Cells). A significant apoptotic percentage 4.12 % is also reported in the group: EP+SNPs+Cells. The lethal effect of the combination of EP, EMF and SNPs on CaCo2 cell lines is further reinforced by comparing the regulation of apoptotic genes (P53, Caspase-3, BCL-2) with its corresponding values in the control cells. The combination of EP, EMF and SNPs is probably a promising method for colon cancer treatment.
International Journal of Development
Egyptian Academic Society for Environmental Development
2314-5536
8
v.
1
no.
2019
113
121
https://ijd.journals.ekb.eg/article_67043_30f506a458c3250ee3c6fd7a9ebf8d85.pdf
dx.doi.org/10.21608/idj.2019.67043