{"title":"Natural Extracts-mediated Biosynthesis of Zinc Oxide Nanoparticles and Their Multiple Pharmacotherapeutic Perspectives","authors":"","doi":"10.47011/15.1.10","DOIUrl":"https://doi.org/10.47011/15.1.10","url":null,"abstract":"Abstract: Eco-friendly green syntheses of nanoparticles (NPs) have involved the natural biomass contents since over a decade. The NPs of zinc oxide (ZnO) have important applications in diagnostics, detection of biomolecules, opto-electronic devices, microelectronics like electromagnetic coupled sensor laser devices, neutralization of environmental hazard pollutants as well as pharmaceutical components from water. ZnO-NPs play a pivotal role in drug delivery, exhibiting biomedical activities, such as anti-pathogenics, diagnosis of various diseases, anti-oxidants etc. The interest in synthesizing ZnO-NPs via the biological method (plant extracts) has increased considerably in the last few decades. The development of this new approach and the significant interest in it are mainly related to the absence of toxic chemicals or high-energy applied methods to the biological synthesis which develop more environmentally friendly and cost-effective methods. This review article focuses on recent (January 2020 to May 2020) plant-mediated green synthetic methods which are highlighted comprehensively in this review article.\u0000Keywords: Zinc, Nanoparticles, Natural, Synthesis, Plant, Extract.","PeriodicalId":42562,"journal":{"name":"Jordan Journal of Physics","volume":" ","pages":""},"PeriodicalIF":0.7,"publicationDate":"2022-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42655875","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Nanofibers of Palladium (Pd)-sensitized SnO2 Encapsulated with Polyaniline for Effective Hydrogen Gas Sensing","authors":"","doi":"10.47011/15.1.1","DOIUrl":"https://doi.org/10.47011/15.1.1","url":null,"abstract":"Abstract: In this paper, we have successfully synthesized Pd-doped SnO2 nanofibers encapsulated with Polyaniline (PANI). The morphology of nanofibers was investigated using Scanning Electron Microscopy (SEM) technology. SEM study suggested that the diameter of Pd-doped SnO2 encapsulated with polyaniline (PSP) nanofibers was found in the range 200-400 nm. The average diameter of PSP nanofibers was estimated using ImageJ software. XRD study of pure FIBRESnO2 and PSP nanofibers shows perfect matching of major peaks corresponding to Tin Oxide (SnO2). EDAX pattern depicted weight percentage of constituent elements indicated the presence of Palladium (Pd) in nanofibers. The study revealed that PSP nanofibers were more sensitive as compared to pristine SnO2 nanofibers. The working temperature of PSP nanofibers was found 32°C. The low working temperature provokes the use of PSP nanofibers as a promising hydrogen gas sensor. Response and recovery time of 34 seconds and 63 seconds respectively has been observed for PSP nanofibers. Palladium (Pd) could have played a major role in higher response towards hydrogen gas sensing. The mesoporous PSP electrospun nanofibers exhibited excellent response and recovery behavior, with much higher sensitivity to H2 as compared with pure SnO2 nanofibers. It could be understood that the high gas sensing performance of PSP nanofibers is obtained from the high surface area, with more activity at Pd active sites of nanofibers. Highly porous nature of electrospun nanofibers led to effective surface interaction between the hydrogen gas molecules and SnO2 active site mediated by palladium for electron transfer through the matrix of nanofibers.\u0000Keywords: Nanofibers, Hydrogen sensing, Pd-doped SnO2 Polyaniline (PSP), Electrospinning, Polyaniline.","PeriodicalId":42562,"journal":{"name":"Jordan Journal of Physics","volume":" ","pages":""},"PeriodicalIF":0.7,"publicationDate":"2022-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41819813","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Impact of La on Structural, Morphological and Magnetic Properties of NiCoFe2O4 Nano Ferrites","authors":"","doi":"10.47011/15.1.3","DOIUrl":"https://doi.org/10.47011/15.1.3","url":null,"abstract":"Abstract: Ni0.2Co0.8Fe2-xLaxO4 (x = 0.02, 0.06, 0.10) nano ferrites have been synthesized by Sol-gel auto combustion method using urea as a fuel. The sample calcinations have been performed at 800 oC for 4 hours. The synthesized samples were subjected to study X-ray diffraction spectroscopy (XRD) for structural investigations. All the samples were found to constitute Face Centered Cubic (FCC) spinel structure belonging to the Fd3m space group. The XRD results show the single cubical phase formation in the heated samples. Energy-dispersive X-ray spectra confirmed the presence of Ni, Co, La Fe and O elements with no existence of any impurity. The average crystallite size was decreased by varying the concentration of La from 10 to 8 nm. The Field Emission Gun Scanning Electron microscopy (FEG-SEM) and Field Emission Gun transmission electron microscopy (FEG-TEM) have given the morphological study of the samples. It is also found that the value of the lattice constant decreases with increases in La concentration. The magnetic properties of the samples were investigated by using a vibrating sample magnetometer (VSM). The results obtained from VSM show that the value of both magnetization (Ms) and coercivity (Hc) decreases with an increase in diamagnetic La concentration.\u0000Keywords: Spinel ferrites, Sol-gel, SEM, TEM, VSM.","PeriodicalId":42562,"journal":{"name":"Jordan Journal of Physics","volume":" ","pages":""},"PeriodicalIF":0.7,"publicationDate":"2022-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41342884","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Utilization of Mother Nature’s Gift for the Biofabrication of Copper/ Copper Oxide Nanoparticles for Therapeutic Applications","authors":"","doi":"10.47011/15.1.12","DOIUrl":"https://doi.org/10.47011/15.1.12","url":null,"abstract":"Abstract: This review enumerates the green cum biosynthesis of copper/copper oxide nanoparticles (Cu/CuO NPs) using plant and biogenic extracts. Moreover, it explores the biogenic synthesis of Cu/CuO NPs using different methods and elaborates on biological and eco-friendly modes of synthesis using different plant species. The survey revealed that biological methods involve the use of plant extracts, bacteria, protozoa and fungi. However, plant mediated nanomaterials synthesis is the best technique. Some of the microscopic characterization techniques, like XRD, SEM, TEM, FTIR, XPS, BET and UV–Vis, have been discussed to explore the size, shape, structure, composition and porosity of Cu NPs. The current review highlights the phytosynthesis, characterization and therapeutic applications of Cu/CuO NPs. The therapeutic applications of Cu/CuO NPs, like antimicrobial, anti-parasitic and anticancer activities against a variety of gram-negative and positive bacteria, fungi and human cancer cells, respectively, have been discussed.\u0000Keywords: Biosynthesis, Phytosynthesis, Cu/CuO NPs, Microscopic techniques; Therapeutic applications.","PeriodicalId":42562,"journal":{"name":"Jordan Journal of Physics","volume":" ","pages":""},"PeriodicalIF":0.7,"publicationDate":"2022-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45452261","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"A Brief Review on Structural, Morphological, Magnetic and Dielectric Behavior of Divalent Cation-substituted Nanocrystalline Cobalt Ferrite","authors":"","doi":"10.47011/15.1.9","DOIUrl":"https://doi.org/10.47011/15.1.9","url":null,"abstract":"Abstract: Spinel ferrites nanoparticles have received much more focus due to their promising applications in various technologies, such as magnetic refrigerators, microwave devices, colour imaging, high-density recording media and magnetic fluids. Nano-crystalline cobalt ferrite has been widely studied for its distinctive properties, like cubic magneto crystalline anisotropy, high coercivity, reasonable saturation magnetization, great chemical constancy, wear resistance and electrical insulation. Thus, cobalt ferrite has its own applications in the arena of high-frequency devices, magneto-optical devices, memory cores, recording media and spintronics and also in the biomedical sector, such as MRI, drug delivery schemes and magnetic hyperthermia. Reduced dimensionality of ferrite nanoparticles is having differences in properties when compared to its bulk counterparts. Size modulation of the physico-chemical properties of cobalt ferrite gives a distinctive response in the nanosized scale, permitting for material engineering in order to meet different necessities while addressing its different applications. The present study gives a brief review of significant effects on structural, dielectric and magnetic properties of cobalt spinel ferrite with different cation substitutions, like Mg2+, Ni2+, Zn2+, Cu2+, In2+ ...etc. This study regarding the size and its dispersity, core shell design, shape, crystallinity and surface decoration with hybrid derivatives opens up a wide variety of prospects for elementary studies as well as for growth and revolution in the field of ferrites.\u0000Keywords: Spinel ferrite, Structural properties, Microstructural properties, Magnetic properties, Dielectric properties.","PeriodicalId":42562,"journal":{"name":"Jordan Journal of Physics","volume":"941 ","pages":""},"PeriodicalIF":0.7,"publicationDate":"2022-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41279423","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Half a Decade Progress of Biomass-assisted Development of Zirconium Nanomaterials: Anti-microbial Potentials","authors":"","doi":"10.47011/15.1.11","DOIUrl":"https://doi.org/10.47011/15.1.11","url":null,"abstract":"Abstract: Nanotechnology has revolutionized all fields across the globe and opened up several frontiers in nanobiotechnology, nanopharmacotherapeutics, material and applied sciences, biomedical sciences, drug delivery, tumor therapy imaging, biosensing, electronics, bactericidal activity, catalysis, optics and photoelectrochemistry. Nature has provided abundant biological resources to synthesize NPs eco-friendly. Over the past few years, purified extracts of bacteria, fungi, algae, seaweeds and viruses have received adequate attention for the development of energy-proficient, non-toxic, economic nanoparticles (NPs). The present review article exclusively focuses on the last 5 years (January 2016 to December 2020) progress in the area of green synthesis of zirconium nanomaterials (zirconium NPs (Zr-NPs), zirconium dioxide (ZrO2) and zirconium/metal nanocomposites, Cu/ZrO2) by utilization of plant extracts, fungal extracts and seaweed extracts. The probable mechanism(s) of the formation of NPs by reduction with bioreductants is (are) also described briefly.\u0000Keywords: Zirconium, Nanoparticles, Plant, Fungi, Seaweed, Anti-microbial potentials.","PeriodicalId":42562,"journal":{"name":"Jordan Journal of Physics","volume":" ","pages":""},"PeriodicalIF":0.7,"publicationDate":"2022-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48424305","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Optical, Structural and Electrical Properties of CuS Thin Film on Dielectric Substrate by Spray Pyrolysis Technique","authors":"","doi":"10.47011/15.1.7","DOIUrl":"https://doi.org/10.47011/15.1.7","url":null,"abstract":"Abstract: This paper deals with depositing a CuS thin film on a glass substrate at 3800C by using spray pyrolysis method. Its optical properties and electric properties are characterized after cooling the sample. Formation for compound, structure and morphology were studied using x-ray diffraction. The optical study comprised the extraction and analysis of calculated optical constants, such as absorption coefficient (α), transmittance, extinction coefficient (k), which revealed the presence of a direct optical energy band gap of 2.0 eV. The temperature-dependent electrical resistivity with other necessary parameters was systematically studied for CuS film in the present work. Overall study confirmed the semiconducting behavior of the film which is useful for many applications, even when the film is touching the substrate at a micrometer scale with spray pyrolysis. This paper also explores the optical conductivity, dielectric constant, Urbach energy, morphology and thermal activation energy of the CuS film with explaining methodological details.\u0000Keywords: Thin film, Spray pyrolysis technique, Electrical and optical properties, XRD.","PeriodicalId":42562,"journal":{"name":"Jordan Journal of Physics","volume":" ","pages":""},"PeriodicalIF":0.7,"publicationDate":"2022-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44410280","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Study of Structural and Magnetic Properties of Co-doped M-Type Sr-Hexaferrite Nanoparticles","authors":"","doi":"10.47011/15.1.8","DOIUrl":"https://doi.org/10.47011/15.1.8","url":null,"abstract":"Abstract: The aim of this work is to synthesize nanocrystalline SrFe10Co3O19 with M-type hexaferrites via Sol-gel auto-combustion method. The synthesized powders were consequently subjected to calcination at 900oC for 6h. The synthesized samples are characterized by X-ray diffraction (XRD) to find structural parameters. The XRD results exposed single hexagonal magnetoplumbite phase formation in the heated samples. The morphology of the compound was revealed by Field Emission Gun Scanning Electron Microscopy (FEG-SEM). Vibration Scanning Magnetometer (VSM) provides the magnetic nature of the compound. It shows that the decrease in coercivity was affected by doping of Co2+ ions.\u0000Keywords: M-type hexagonal ferrites, SEM, Sol-gel, VSM, XRD.","PeriodicalId":42562,"journal":{"name":"Jordan Journal of Physics","volume":" ","pages":""},"PeriodicalIF":0.7,"publicationDate":"2022-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43053371","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Optical, P-XRD & U-V Properties by Varying the Concentration of L-valine Amino Acid in Pure KDP","authors":"","doi":"10.47011/15.1.5","DOIUrl":"https://doi.org/10.47011/15.1.5","url":null,"abstract":"Abstract: H2PO4 potassium dihydrogen phosphate crystals (KDP) were prepared for dopant L- valine amino acid. The bulk growth was reported along <011> and <101> plane by seed rotating crystal method and solution growth method. The doping concentrations in the mother solution were 0.4 mole%, 0.6 mole% and 0.8 mole% and the corresponding seed rotation rates were 30 rpm, 60 rpm and 100 rpm for 15 to 20 days. KDP crystal of dimensions 102 x 23 mm, 72 x 23 mm and 102 x 35 mm size has been grown. FTIR spectra showed the presence of functional groups in the crystal. Powder X-ray diffraction analysis of transparent bulk nonlinear optical crystal doped with LV confirms the formation of the tetragonal system. Energy Dispersive X-ray analysis (EDAX) confirms the elemental analysis of potassium and phosphate radicals in the reported crystal. Optical transmission increases with the increase of concentration of L-valine in KDP crystals.\u0000Keywords: Crystal growth, Symmetry, FTIR, UV, EDAX.","PeriodicalId":42562,"journal":{"name":"Jordan Journal of Physics","volume":" ","pages":""},"PeriodicalIF":0.7,"publicationDate":"2022-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48347660","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Two-color Emission in Dy3+-activated CaZnP2O7 Pyrophosphate for White LED","authors":"","doi":"10.47011/15.1.13","DOIUrl":"https://doi.org/10.47011/15.1.13","url":null,"abstract":"Abstract: CaZnP2O7 pyrophosphate phosphor doped with Dy3+ ions was synthesized by modified solid-state reaction. The crystalline phases were recognized using X-ray diffraction. Surface morphology was studied by scanning electron microscopy. Furthermore, the chromaticity coordinates' values were estimated from the emission spectra of CaZnP2O7:Dy3+. The phosphor photoluminescence emission spectra were found to have an excitation at around 353 nm showing two distinguishing bands centered at about 482 nm (Blue) and 575 nm (Yellow) corresponding to 4F9/2→6H15/2 and 4F9/2→6H13/2 transitions of Dy3+, respectively. These phosphors have strong absorption in the near-UV region. The intact study reveals that the present phosphors are suitable for color converter using UV light as the primary light source, which can be used as a blue/yellow phosphor excited by the n-UV LED chip and mixed with other color emission phosphors to obtain white light.\u0000Keywords: Chemical synthesis, Luminescence, X-ray diffraction, Optical properties.","PeriodicalId":42562,"journal":{"name":"Jordan Journal of Physics","volume":" ","pages":""},"PeriodicalIF":0.7,"publicationDate":"2022-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42034664","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}