JOURNAL OF NANOSCOPE (JN) http://jn.wum.edu.pk/index.php/ojs <p>Journal of Nano-scope is a peer reviewed journal in all disciplines of Science, Engineering and Medicine that covers all the fundamental and applied research. The journal facilitates the research and wishes to publish papers as long as they are technically correct, scientifically motivated, experimental in nature and theoretically important.</p> <p> </p> <p><strong>PATRON IN CHIEF</strong></p> <p>Prof. Dr. Uzma Quraishi</p> <p>Vice Chancellor</p> <p>The Women University, Multan.</p> <p> </p> <p><strong>EDITOR-IN-CHIEF</strong></p> <p>Dr. Malika Rani</p> <p>Department of Physics</p> <p>The Women University, Multan</p> en-US dr.malikarani@wum.edu.pk (Dr. Malika Rani) asghar.ali@wum.edu.pk (Mr. Asghar Ali) Thu, 31 Dec 2020 00:00:00 +0000 OJS 3.2.0.3 http://blogs.law.harvard.edu/tech/rss 60 Synthesis and Characterization of Aluminium and Cobalt substituted W type Hexagonal Ferrites http://jn.wum.edu.pk/index.php/ojs/article/view/15 <p>Our work utilized sol-gel auto combustion method for M-type ferrites synthesis with hexagonal orientation having chemical composition Ca<sub> (1-X)</sub> AlXCo<sub>2</sub>Fe<sub>16</sub>O<sub>22</sub>. Annealing of the samples was performed for 8 hours at 1200<sup>o</sup>C. Structural properties and grain morphology of the synthesized samples included X-ray diffraction (XRD), Fourier transforming infrared spectroscopy (FTIR), Ultraviolet visible spectroscopy techniques and scanning electron microscope (SEM). The XRD analysis verified that all samples exhibited single-phase crystalline hexagonal w-type structure at a temperature range of 1200<sup>o</sup>C without impurity level. The approximate grain size from SEM images is within the range of 76-139 nm, which confirms nanocrystal line structure of hexagonal samples. The spectral analysis of the FT-IR showed that the band of absorption ranged from 450 cm<sup>-1</sup> to 650 cm<sup>-1</sup>. FTIR spectra of prepared samples disclosed proof of positive formation of hex ferrites. The presence of metal oxygen bonding at octahedral site and tetrahedral site indicates that all manufactured samples show hexagonal ferrites w-type hexagonal ferrites are ideal for application with high frequency applications, such as microwave systems.</p> Muhammad Mujahid, Hasan M. Khan, Zartasha Sarwar, Khurram Ali, Mohammad Shoib, Imran Sadiq, Yongbing XU, Muhammad Zahid, Muhammad Nadeem, Tahira Akhtar, Rashida Anjum, Innam ur Rehmana Copyright (c) 2021 http://jn.wum.edu.pk/index.php/ojs/article/view/15 Thu, 31 Dec 2020 00:00:00 +0000 Synthesis and characterization of Manganese Chromites spinel by using sol-gel method http://jn.wum.edu.pk/index.php/ojs/article/view/16 <p>In the present paper we reports the synthesis of spinel Maganese Chromites (MnCr2O4) Nano-Crystalline by sol gel method. The sample was calcined at different temperature like 750?C and 950?C for good results. Ethylene glycol which is used to control the agglomeration of Nano-particles. By powder x-ray diffraction combine average particle size of Nano-particles was determined which shows that crystal size increases from 19nm to more when we increase the sintered temperature. SEM shows that results are in good agreements. From PL spectra the band gap energy was calculated which is almost 4.03 eV at 750?C but it can decreases when we increase the temperature like 950?C is 3.89 eV. Raman results showed that wavelength is maximum like 1306cm-1 and 1465cm-1.</p> Afsin Gungor, Ali Ozhan Copyright (c) 2021 http://jn.wum.edu.pk/index.php/ojs/article/view/16 Thu, 31 Dec 2020 00:00:00 +0000 COMPARATIVE EVALUATION OF BIOACTIVE POTENTIAL OF MEDICINAL PLANTS EXTRACTS AND THEIR RESPECTIVE NANOPARTICLES http://jn.wum.edu.pk/index.php/ojs/article/view/17 <p>Nanoparticles are used in each department of wisdom like medicine, engineering and all other areas and still attracting the scientist to invent new ideas and make new invention for their own profit, because of their small sizes. New school of thoughts proved that they also have antimicrobial properties. Among various metal nanoparticles, Silver nanoparticles earned a special interest among researchers. These are prepared by some chemical ways with the help of some reducing agents which the passage of time become responsible for different multihued biological risk due to their specific toxicity, Procreate the subdued relate to manifest environment amicable process. There are many biological application that are used to brim the vacant i.e Natural way of synthesis of biological entities extracted from agricultural waste unveil the pretentiousness across other scientific methods. The agricultural waste endure super regulated convention to make it beneficial for the synthesis of nanoparticles. These bestow blog disclose the bumper variety of plants apply toward fast and unistep fashion to prepare the nanoparticles by green synthesis. Which exhibit antimicrobial activities against microbes.</p> Ayesha Islam, Mahwish Batool Kazmi, Raheela Jabeen, Maryam Saeed Copyright (c) 2021 http://jn.wum.edu.pk/index.php/ojs/article/view/17 Thu, 31 Dec 2020 00:00:00 +0000 Predictive Analysis for the Detection of Covid-19 with Chest X-Ray Images Using Convolutional Neural Network http://jn.wum.edu.pk/index.php/ojs/article/view/19 <p>Artificial Intelligence comes up with a lot of ease and advancements in almost all sectors of living. No one of us can deny its contributions in the medical field. Disease detection is one of the greatest achievements of Machine Learning. During the pandemic of COVID-19, medical emergency and less of experts has affected the health sector a lot. Detection of Covid-19 has become much more important than its cure to protect others from the virus. Detection of Covid-19 with our model is much easier through the x-ray images. The model using Convolutional Neural Network has trained on our self-made algorithm which was named to be Lungs X Ray Neural Networks (LxN) providing much more accurate than any other model available. It can process multiple datasets in a batch and our model is generalized very well with an accuracy of 98.8 % on validation and 98.0% on test set. The dataset for solving this problem was obtained from the open-source ieee8023 GitHub Repository, constantly updating with the images around the globe, containing a combo of both corona and non-corona cases. The result obtained from the model is y ? {1, 0} indicating Corona presence or absence respectively. Lungs X Ray Neural Networks (LxN) model is not only specialized on corona data but can be fine-tuned on any other lung images like pneumonia. Thus LxN has significant role in the research area of AI in case of medicine.</p> Muhammad Umer, Iqra Naz, Muhammad Miqdad Khan, Muhammad Shahryar Copyright (c) 2021 http://jn.wum.edu.pk/index.php/ojs/article/view/19 Thu, 31 Dec 2020 00:00:00 +0000 Pressure induce variations in the lattice constant and energy gap of SrThO3 http://jn.wum.edu.pk/index.php/ojs/article/view/20 <p>SrThO<sub>3</sub> belong to stable perovskites family. Some theoretical works have been performed on this compound. However the pressure effect in the pressure range 0 to 30 GPa was never conducted. This work highlights the importance of the hydrostatic compression on the lattice constant and energy bandgap of the compound. Lattice parameter is found to decrease with increasing pressure. SrThO<sub>3</sub> comes out as a direct band gap material. We discussed the effect of pressure on the energy band gap and got to know that overall energy band gap decreases as pressure increases. Finally we discussed the density of states of SrThO<sub>3 </sub>and plotted it against energy.</p> Saleem Ayaz Khan, Shahina Bibi, Kainat Arif Copyright (c) 2021 http://jn.wum.edu.pk/index.php/ojs/article/view/20 Mon, 30 Nov 2020 00:00:00 +0000