International Journal of Nanoparticle Research


Synthesis of Biocompatible carboxylic acid functionalized Graphene Oxide as a stimulator of bacterial growth

Research Article of International Journal of Nanoparticle Research Synthesis of Biocompatible carboxylic acid functionalized Graphene Oxide as a stimulator of bacterial growth Neelima Sharma 1*, Rishi Sharma2 1Department of Pharmaceutical Sciences and Technology, Birla Institute of Technology, Mesra, Ranchi -835215, Jharkhand, India. 2Department of Physics, Birla Institute of Technology, Mesra, Ranchi -835215, Jharkhand,India. This article entitled "Synthesis of Biocompatible carboxylic acid functionalized Graphene Oxide as a stimulator of bacterial growth" from "Neelima Sharma 1*, Rishi Sharma2, 1Department of Pharmaceutical Sciences and Technology, Birla Institute of Technology, Mesra, Ranchi -835215, Jharkhand, India. 2Department of Physics, Birla Institute of Technology, Mesra, Ranchi -835215, Jharkhand,India." has been retracted per author's request. Please do NOT use it for any purposes.  ...

Dielectric properties of Chromium substituted Nickel nano ferrites

Research Article of International Journal of Nanoparticle Research Dielectric properties of Chromium substituted Nickel nano ferrites K. Vijaya Kumar 1*,R.Sridhar2, D.Ravinder3 *1Department of Physics, JNTUH College of Engineering Sultanpur, Sultanpur(V), Pulkal (M), Sangareddy-District, 502293, Telangana State, India. 2Department of BS&H, Vignan Institute of Technology & Science,Yadadri-Bhuvanagiri-Dist.508284, Telangana State, India. 3Department of Physics, Osmania University, Hyderabad-500007, Telangana State, India. Background The powders of Ni-Cr Nano ferrites were synthesized with the chemical formula, NiCrXFe2−XO4 (Where X = 0.1, 0.3, 0.5, 0.7, 0.9 and 1.0) by using citrate-gel auto combustion technique. The structural characterization was investigated by X-Ray Diffractomerter (XRD). X-ray analysis shows that the samples are cubic spinel structure (single phase) without any impurity peak and average crystallite size was in the range of 8.5-10.5nm. The dielectric measurements were carried out as a function of frequency and composition (X) at room temperature in the range of 20Hz-2MHz. The real part of dielectric constant (ε') and dielectric loss factor (tan δ) showed a decreasing trend with increasing field frequency. The ac conductivity (σac) is calculated from the dielectric measurements and it is increased with the increase of frequency. The composition dependent dielectric parameters are reported. Keywords:  Ni-Cr nano-ferrites: Citrate-gel technique: XRD: Dielectric parameters: ...

Synthesis & Structural Characteristics of ZnBi2O4 Nanoparticles Prepared by Citrate-Gel Auto Combustion Method

Research Article of International Journal of Nanoparticle Research Synthesis & Structural Characteristics of ZnBi2O4 Nanoparticles Prepared by Citrate-Gel Auto Combustion Method K. Vijay Kumar1* CH. Shilpa Chakra2 K. Rama Krishna3 A. Rajesham4 1Department of Physics, JNTUH, College of Engineering Sultanpur, Sultanpur(V), Pulkal(M), Sangareddy-Dist., 502 273, T.S., India; 2Center for Nano Science and Technology, IST, JNTUH, Kukatpally, Hyderabad-500085, T. S., India; 3Department of Physics, Malla Reddy College of Engineering &Technology, Secunderabad– 500 014, T. S., India; 4Department of Physics, Sridevi Women’s Engineering College, Vattinagulapalli, Hyderabad– 500 075Telangana, India Zinc Bismuth nanoparticles with chemical composition of ZnBi2O4 is prepared by chemical citrate gel auto combustion method by using citric acid as fuel. The synthesized nano particles are sintered at different temperatures like 300OC, 400OC, 500OC, & 600OC for 4 hours in air medium. The single phase cubic structure is confirmed by X-ray diffraction, the average crystallite sizes of these samples are found to be in the order of 34 nm to 60 nm. The surface morphology of the samples is studied by using Scanning Electron Microscopy. The EDS spectrum confirms the presence of Bismuth, Zinc and Oxygen without any precipitating cations. FT-IR spectroscopy confirms the formation of spinel structure, the average particle sizes of the samples are measured by using DLS technique. Keywords:  Bismuth zinc nano particles, X-rd, SEM, EDS ...

Processing and Characterization of Vacuum-Free CuInSe2 Thin Films from Nanoparticle-Precursors using Novel Temperature Treatment Techniques

Research Article of International Journal of Nanoparticle Research Processing and Characterization of Vacuum-Free CuInSe2 Thin Films from Nanoparticle-Precursors using Novel Temperature Treatment Techniques Matthias Schuster*, Philipp Sisterhenn, Lorenz Graf, Peter J. Wellmann Materials Department 6 (i-MEET), Martensstr. 7, 91058 Erlangen, Germany, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU) The objective of this work is the processing and characterization of a dense CuInSe2 solar-cell-absorber-layer based on nanoparticulate precursors. Bimetallic copper-indium- and elemental selenium-nanoparticles were synthesized by wet-chemical processes and then dispersed in organic solvents as nano-inks. These inks were then printed into different layer-stacks on a molybdenum coated float-glass-substrate via doctor-blading. The temperature treatment to transform these layer-stacks into dense CISe thin films was investigated, using a face-to-face technique and mechanically applied pressure or the repetition of coating and annealing. All absorber layers were characterized with SEM, EDX and XRD. Dense, coarse grained CuInSe2 layers with a thickness ≈ 7 µm were formed and the application of mechanical pressure shows potential to reduce thickness and sinter together the nanoparticles to large grains of ca. 3 µm in size. The face-to-face-annealing ensured keeping a stoichiometric ratio of (Cu+In) / Se ≈ 1, and can help reducing the content of oxides, even when the annealing is performed in ambient atmosphere. With a repetition of coating and annealing, dense CISe layers could be produced at low temperature of only 350 °C. Keywords:  CuInSe2, solar cell absorber, nanoparticles, vacuum-free, face-to-face annealing, uniaxial pressure ...

Prof. Dr. Alireza Heidari
Full Professor and Academic Tenure of Chemistry & Director of the BioSpectroscopy Core Research Laboratory at Faculty of Chemistry, California South University, USA & President of American International Standards Institute, USA

Dr. Suban K Sahoo
Assistant Professor, Department of Applied Chemistry, S.V. National Institute of Technology (SVNIT) Ichchanath

Dr. Prakash Prajapat
Assistant Professor, Department of Chemistry, Mehsana Urban Institute of Sciences, Ganpat University

Dr Soumya Mukherjee
Assistant Professor, Amity School of Engineering and Technology, Amity University

Dr. Pragati Kumar
Assistant Professor, Department of Nano Sciences & Materials, Central University of Jammu

Dr. Ha, Chang-Sik
Distinguished Professor, Dept. of Polymer Science and Engineering, Pusan National University, Busan 46241, Korea

Dr Nasrallah M. Deraz
Professor, Advanced Nanomaterials Chemistry and Catalysis, National Research Centre, Dokki, Cairo, Egypt.

Dr. Boumediene Haddad
Associate professor (lecturer and Scientific Researcher), Department of Chemistry, Dr. Moulay Taher University

Dr. Azeez Abdullah Barzinjy
PhD (Materials Science), Department of Physics, College of Education, Salahaddin University –Erbil

Dr. Dibya Prakash Rai
Assistant Professor, Department of Physics, Pachhunga University College, Aizawl, Mizoram, India-796001


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1.K. Vijaya Kumar,R.Sridhar, D.Ravinder. Dielectric properties of Chromium substituted Nickel nano ferrites. International Journal of Nanoparticle Research, 2018; 2:6. DOI:10.28933/ijnr-2018-01-0302 
2.Muhammad Arshad Chaudhry, Liaqat Ali, Khalid Mahmood Ghauri, Javed Iqbal .Development and Characterization of Nanoparticle Metal Matrix Composites: (Al 2024-SiC NP). International Journal of Nanoparticle Research, 2018; 2:7. DOI:10.28933/ijnr-2018-04-1901

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International Journal of nanoparticle research

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