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Fractal Prediction of Film Growth and Properties
Published in Fredrick Madaraka Mwema, Esther Titilayo Akinlabi, Oluseyi Philip Oladijo, Sputtered Thin Films, 2021
Fredrick Madaraka Mwema, Esther Titilayo Akinlabi, Oluseyi Philip Oladijo
In this section, synthetic topographic images for the different possible morphologies and growth mechanisms were generated and their fractal characterizations were undertaken. The simulated surfaces are beneficial for theoretical analyses of artifact-free AFM images and are essential for the prediction of surface characteristics of specific structures [19]. The generation of the synthetic topography was conducted using Gwydion software (an open source software readily available on http://gwyddion.net/) and supported by the Department of nanometrology, Czech Metrology Institute [20,21]. The procedure for the generation of the synthetic topography micrographs are described in the manual of the software [21]. For each morphology category, a total of 10 images of varying scan sizes (up to 2000 μm square scan size) were generated. All the images were of the same resolutions of 512 × 512 pixels, height of 1.0±0.00 pixels, coverage of 10.00, the inclination of 0.0°, the direction of 0.0°, a variance of 1.00, and at a weak relaxation mode [21].
Nanocomposites for Environmental Pollution Control:
Published in Moayad N. Khalaf, Michael Olegovich Smirnov, Porteen Kannan, A. K. Haghi, Environmental Technology and Engineering Techniques, 2020
The Royal Society Report7 discussed with vast lucidity and foresight opportunities and uncertainties in nanoscience and nanotechnologies. This report discussed with immense scientific vision nanomaterials, nanometrology, electronics, optoelectronics, and information and communication technologies, bionanotechnology and nanomedicine, nanomanufacturing, and the industrial applications of nanotechnologies, adverse health, safety and environmental effects and social and ethical issues in nanotechnology applications.7 The science and engineering of nanotechnology, nanomaterials, and engineered nanomaterials are today in the path of newer scientific regeneration. The remit of this study is to summarize the current state of scientific knowledge about the whole domain of nanotechnologies and target the further emancipation of science and technology.7
Nanotechnology Applications in Medicine
Published in Cherry Bhargava, Amit Sachdeva, Nanotechnology, 2020
Ashish Suttee, Neeraj Choudhary
Nanotechnology can be broadly classified into various major branches which are listed below: Nanochemistry – deals with the synthesis of nanoparticlesNanophysics – deals with the artificial assembling and fabrication of nanostructures Nanomaterials science – study of the development and production of novel nanostructured components with distinctive propertiesNanoelectronics, nanoengineering and optoelectronics – deals with the novel technological processes’ developmentNano-biocraft – destined for the development of special nanotools, instrumentations, information and computational methodology relevant with the unique biomachine complex, such as nano biorobots, nano biochips, etc.Nanodevice-building, nanometrology and nano-hand systems – help in the expansion of nanotechnology
Treatment of tequila vinasse and elimination of phenol by coagulation–flocculation process coupled with heterogeneous photocatalysis using titanium dioxide nanoparticles
Published in Environmental Technology, 2020
Alicia Rodriguez Arreola, Marciano Sanchez Tizapa, Florentina Zurita, Juan Pablo Morán-Lázaro, Rocío Castañeda Valderrama, José Luis Rodríguez-López, Alejandra Carreon-Alvarez
The synthesis of TiO2 nanoparticles was done by mixing 4 mL of hydrochloric acid (HCl 37%, Merck) with 78 mL of 2-propanol (C3H8O, ACS reagent ≥99.5%, Sigma–Aldrich), the mix was stirred for some minutes and 8 mL of titanium tetraisopropoxide (Ti(C3H6OH)4, 97%, Sigma–Aldrich) was added drop-wise; then, 3 mL of ammonium hydroxide (NH4OH, 28–30%, Sigma–Aldrich) was added. After that, the mix was stirred for 24 h at 25°C, after which a white powder settled down in the beaker, from which, the solvent was evaporated at 80°C, finally the powder was collected and annealed in air at 400°C for 1 h [18,19]. The annealed powder was grounded in a mortar and was labelled as S7. This sample was characterized by X-ray diffraction (XRD) in a PANalytical Empyrean diffractometer unit, using CuKα radiation, (λ = 1.546 Å). The crystallite size was calculated from XRD using the Scherrer equation. Ultraviolet-visible spectroscopy (UV–VIS) was carried out in a 3600 Shimadzu spectrophotometer. The study of the morphology was done by transmission electron microscopy (TEM) in a Philips TECNAI-F30 HRTEM 300 kV unit using the mode of high angle annular dark-field. Particle diameters were measured with Gwyddion software (Department of Nanometrology, Czech Metrology Institute). Raman spectroscopy was done in a Thermo Scientific DXR unit using a laser of 633 nm.
The phenomenon of bitumen ‘bee' structures – bulk or surface layer – a closer look
Published in International Journal of Pavement Engineering, 2022
Domenic Ganter, Steffen Franzka, Vladimir V. Shvartsman, Doru C. Lupascu
All AFM measurements were carried out at room temperature (22°C). Analysis of the recorded data was performed by the Gwyddion (Vers.2.53) software (Development supported by Department of Nanometrology, Czech Metrology Institute) and NanoScope Analysis software Vers. 1.9 (Bruker).