Download or read book Synthesis and Characterization of Bimetallic Silver and Platinum Nanoparticles as Electrochemical Sensor for Nevirapine an Anti HIV Drug written by Okumu Fredrick Oluoch and published by . This book was released on 2016 with total page 268 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Silver based Nanoparticles written by Viktoria Grasmik and published by . This book was released on 2018 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Silver Micro Nanoparticles written by Samir Kumar and published by BoD – Books on Demand. This book was released on 2021-09-15 with total page 268 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book describes the different methodologies for producing and synthesizing silver nanoparticles (AgNPs) of various shapes and sizes. It also provides an in-depth understanding of the new methods for characterizing and modifying the properties of AgNPs as well as their properties and applications in various fields. This book is a useful resource for a wide range of readers, including scientists, engineers, doctoral and postdoctoral fellows, and scientific professionals working in specialized fields such as medicine, nanotechnology, spectroscopy, analytical chemistry diagnostics, and plasmonics.
Download or read book Gold and Silver Nanoparticles written by Suban K. Sahoo and published by Elsevier. This book was released on 2023-01-20 with total page 454 pages. Available in PDF, EPUB and Kindle. Book excerpt: Gold and Silver Nanoparticles: Synthesis and Applications provides detailed information on the preparation and utilization of Au- and Ag-based nanoparticles in a range of novel areas. Gold and silver nanoparticles offer a range of interesting properties, including unique size-dependent optoelectronic properties, chemical stability and biocompatibility, ease of synthesis and surface modification, excellent resistance to corrosion, and catalytic properties, hence paving the way to a wide range of cutting-edge applications with continual advances and innovations. Sections introduce gold and silver nanoparticles, fundamental theory, synthesis, and characterization techniques before focusing on requirements and preparation methods. Specific applications areas, such as surface-enhanced Raman spectroscopy (SERS), sensing and biosensing, imaging, drug and gene delivery, disease diagnosis, catalysis, and optoelectronic device fabrication are covered. Finally, synthesis and applications of platinum- and palladium-based nanoparticles are discussed. This is a valuable resource for researchers and advanced students across nanoscience and nanotechnology, chemistry, and materials science, as well as scientists, engineers, and R&D professionals with an interest in noble metal nanomaterials for a range of industrial applications. - Explains theory, synthesis, characterization, and properties of Au- and Ag- based nanoparticles - Explores a range of novel applications across biomedicine, optoelectronics, and other areas - Analyzes the latest developments in the field and considers noble metal nanoparticles beyond gold and silver
Download or read book Synthesis and Characterization of Bimetallic Platinum Nanoparticles for Use in Catalysis written by Ntombizodwa Ruth Mathe and published by . This book was released on 2015 with total page 408 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Nanomaterials for Electrochemical Sensing and Biosensing written by Martin Pumera and published by CRC Press. This book was released on 2016-04-19 with total page 288 pages. Available in PDF, EPUB and Kindle. Book excerpt: Nanotechnology brings new possibilities for the development of sensors, biosensors, and novel electrochemical bioassays. Nanoscale materials have been extensively used in a wide variety of configurations- as electrode surfaces to promote electrochemical reaction, as "wires" to enzymes connecting their redox centers to electrode surface, as nanobarc
Download or read book Silver Nanoparticles written by Khan Maaz and published by . This book was released on 2018-07 with total page 290 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Synthesis and Characterization of Some Nanometaloxides and Their Application as Electrochemical Sensor written by Sathish Reddy R and published by Independent Author. This book was released on 2023-03-21 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Sensors are the devices, which are composed of an active sensing material with a signal "transducer". The role of these two important components in sensors is to transmit the signal without any amplification from a selective compound or from a change in a reaction. These devices produce any one of the signals as electrical, thermal or optical output signals which could be converted in to digital signals for further processing. One of the ways of classifying sensors is done based on these output signals. Among these, electrochemical sensors have more advantage over the others because; in these, the electrodes can sense the materials which are present within the host without doing any damage to the host system. On the other hand, sensors can be broadly classified in to two categories as chemical sensors and biosensors. The biosensors can be defined in terms of sensing aspects, where these sensors can sense biochemical compounds such as biological proteins, nucleotides and even tissues [1-4]. Within these sensors, the active sensing material on the electrode should act as a catalyst and catalyze the reaction of the biochemical chemical compounds to obtain the output signals [1,5, 6]. The combination of these two different ways of classifications has given rise to a new type of sensors which are called electrochemical biosensors, where the electrochemical methods are applied for the construction and working of a biosensor [ l, 7-9]. The selection and development of an active material is a challenge. The active sensing materials may be of any kind as whichever acts as a catalyst for sensing a particular analyte or a set of analytes. The recent development in the nanotechnology has paved the way for large number of new materials and devices of desirable properties which have useful functions for numerous electrochemical sensor and biosensor applications [l, 10-14]. Basically by creating nanostructure, it is possible to control the fundamental properties of materials even without changing their chemical composition. In this way the attractive world of low dimensional systems, together with the current tendencies on the fabrication of functional nanostructured arrays could play a key role in the new trends of nanotechnology [ 1, 15-17]. Further, the nanostructures can be used for both efficient transport of electrons and optical excitation, and these two factors make.
Download or read book Voltammetric Analysis of Platinum Group Metals Using a Bismuth Silver Bimetallic Nanoparticles Sensor written by Charlton van der Vinn and published by . This book was released on 2017 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: This study dealt with the development of a bismuth-silver bimetallic nanosensor for differential pulse adsorptive stripping voltammetry of platinum group metals (PGMs) in environmental samples. The nanosensor was fabricated by drop coating a thin bismuth-silver bimetallic film onto the active area of the screen-printed carbon electrodes. Optimization parameters such as pH, dimethylglyoxime (DMG) concentration, deposition potential and deposition time, stability test and interferences were also studied. In 0.2 M acetate buffer (pH = 4.7) solution and DMG as the chelating agent, the reduction signal for PGMs ranged from 0.2 to 1.0 ng L−1. In the study of possible interferences, the results have shown that Ni(II), Co(II), Fe(III), Na+, SO42−, and PO43− do not interfere with Pd(II), Pt(II), and Rh(III) in the presence of DMG with sodium acetate buffer as the supporting electrolyte solution. The limit of detection for Pd(II), Pt(II), and Rh(III) was found to be 0.07, 0.06 and 0.2 ng L−1, respectively. Good precision for the sensor application was obtained with a reproducibility of 7.58% for Pd(II), 6.31% for Pt(II), and 5.37% for Rh(III) (n = 10).
Download or read book Synthesis and characterization of silver nanoparticles by Rhizopus stolonifer and its activity against multidrug resistant Escherichia coli and Staphylococcus aureus written by Afreen Banu and published by GRIN Verlag. This book was released on 2012-06-06 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt: Research Paper (undergraduate) from the year 2011 in the subject Chemistry - Other, Gulbarga University (Microbiology Dept), course: Ph.D, language: English, abstract: This study reports the extracellular synthesis of silver nanoparticles by Rhizopus stolonifer and its efficacy against multidrug resistant (MDR) E.coli and S.aureus isolated from Khwaja Bande Nawas Hospital, Gulbarga, Karnataka. Synthesis of silver nanoparticles (AgNPs) was carried out by using fungal filtrate of R.stolonifer and an aqueous solution of AgNO3. The characterization of AgNPs was made by UV-Visible absorption Spectroscope, Scanning Electron Microscope and Energy Dispersed Spectroscope (SEM-EDS), Transmission Electron Microscope (TEM), Fourier Transform Infrared (FTIR) spectroscopy and Atomic Force Microscope (AFM). TEM micrograph revealed the formation of spherical nanoparticles with size ranging between 3 to 20 nm. Atomic force microscopy gives the three dimensional structure of the particles. The presence of proteins was detected by FTIR spectroscopy. Three dimensional structure of AgNPs was studied by AFM. AgNPs produced by R.stolonifer gave good antibacterial activity against clinical isolates which were multidrug resistant. Here we report the efficacy of mycogenic metal nanosilver against MDR strains which is difficult through conventional chemotherapy.
Download or read book Silver Nanoparticles for Drug Delivery written by Prashant Kesharwani and published by Elsevier. This book was released on 2023-11-30 with total page 501 pages. Available in PDF, EPUB and Kindle. Book excerpt: Silver Nanoparticles for Drug Delivery is a complete reference that provides comprehensive coverage of the principle behind the formation, characterization, application, regulation, toxicity, and challenges and future perspectives of silver nanoparticles in drug delivery for the treatment of various diseases. Sections cover the synthesis and characterization of silver nanoparticles (AgNPs), historical introductions to developments, methods and characterization parameters, green and biological synthesis methods, biofate and cellular interactions of AgNPs, drug delivery for the treatment of several diseases and conditions, targeting strategies, applications in cancer diagnosis and treatment, and much more. This is a complete reference for graduate students in nanotechnology drug delivery. Delivers the complete journey of silver nanoparticles in drug delivery, from the fundamentals to the most recent applications Provides an in-depth novel application of silver nanoparticles in biological milieu Presents a vital source for researchers in silver nanoparticles based targeted drug delivery, nanomedicine and engineering
Download or read book Synthesis Characterization and Application of Pd Pt Bimetallic Nanoparticles and Carbon Nanotubes Supported Nanocomposites written by Guoqiang Ren and published by . This book was released on 2007 with total page 116 pages. Available in PDF, EPUB and Kindle. Book excerpt: "A study on the synthesis of Pd-Pt alloy nanoparticles and composition evolution of the alloys was reported. The synthesis followed a hot organometallic route, with Pd and Pt acetylacetonate as the metal precursors and trioctylphosphine as the solvent. The size of the Pd-Pt nanoparticles narrowed down with time and reached a final size of 3.5 nm in about 10 min. The alloy compositions evolved with time and reached the preset Pd to Pt ratio of precursors in 120 min. An atomic exchange process between the Pt-TOP complex and the Pd atoms at the nanoparticle surface was proposed to elucidate this synthesis process"--Abstract, leaf iv.
Download or read book Synthesis and Characterization of Silver Nanoparticles by Rhizopus Stolonifer and Its Activity Against Multidrug Resistant Escherichia Coli and S written by Afreen Banu and published by . This book was released on 2013-09-12 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt: Scholarly Research Paper from the year 2011 in the subject Chemistry - Other, grade: -, Gulbarga University (Microbiology Dept), course: Ph.D, language: English, abstract: This study reports the extracellular synthesis of silver nanoparticles by Rhizopus stolonifer and its efficacy against multidrug resistant (MDR) E.coli and S.aureus isolated from Khwaja Bande Nawas Hospital, Gulbarga, Karnataka. Synthesis of silver nanoparticles (AgNPs) was carried out by using fungal filtrate of R.stolonifer and an aqueous solution of AgNO3. The characterization of AgNPs was made by UV-Visible absorption Spectroscope, Scanning Electron Microscope and Energy Dispersed Spectroscope (SEM-EDS), Transmission Electron Microscope (TEM), Fourier Transform Infrared (FTIR) spectroscopy and Atomic Force Microscope (AFM). TEM micrograph revealed the formation of spherical nanoparticles with size ranging between 3 to 20 nm. Atomic force microscopy gives the three dimensional structure of the particles. The presence of proteins was detected by FTIR spectroscopy. Three dimensional structure of AgNPs was studied by AFM. AgNPs produced by R.stolonifer gave good antibacterial activity against clinical isolates which were multidrug resistant. Here we report the efficacy of mycogenic metal nanosilver against MDR strains which is difficult through conventional chemotherapy.
Download or read book Silver Nanoparticles written by Audrey E. Welles and published by . This book was released on 2010 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Silver nanoparticles are nanoparticles of silver, of between 1 nm and 100 nm in size. While frequently described as being 'silver' some are composed of a large percentage of silver oxide due to their large ratio of surface to bulk silver atoms. This book explores the properties, characterisation and application of silver nanoparticles on topics such as low and high-order nonlinearities of silver nanoparticles; the synthesis, growth mechanisms and tuneable optical and catalytic properties of silver nanoparticles; laser-induced shape transformation of silver nanoparticles embedded in glass and others.
Download or read book Theory Synthesis and Characterization of Colloidal Platinum Nanoparticles written by Elham Gharibshahi and published by . This book was released on 2013 with total page 470 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Synthesis Characterization and Catalytic Investigations of Pt based Binary bimetallic and Ternary trimetallic Nanoparticles written by Gerard Malefane Leteba and published by . This book was released on 2016 with total page 124 pages. Available in PDF, EPUB and Kindle. Book excerpt: This work tests the hypothesis that nanoparticles of 75 at.% platinum (Pt) composition and anisotropic morphology, will outperform standard catalysts in (PEMFC) hydrogen fuel cells. A survey of the scientific literature on this topic is first presented. The synthetic strategies which were developed for the preparation of novel Pt-based binary (bimetallic) and ternary (trimetallic) nanoparticles, containing nickel (Ni), cobalt (Co) and/or vanadium (V), are then described. The synthesis protocols for solution-grown colloidal nanoparticles all required the heat-up of a chemical mixture (of metal precursors, surfactants as stabilizers, solvents and/or reductants) from room temperature to high temperatures (up to 310 °C), for thermal decomposition or thermal co-reduction. These protocols were successful in producing nanostructures of high quality, with exceptional solubility in polar solvents such as chloroform after repeated washing and drying. Detailed microstructural investigations of the synthesized nanoparticles were carried out using scanning transmission electron microscopy (STEM), TEM and X-ray diffraction (XRD). The nanoparticles were anisotropic with composition around 75 at.% Pt. Depending on the particular synthesis protocol, the as-prepared nanoparticles exhibited different morphologies, surface facets, size and structure (alloy or core-shell).
Download or read book Synthesis Characterization and Deposition of Platinum Nanoparticles written by Dulan B. Gunasekara and published by . This book was released on 2009 with total page 206 pages. Available in PDF, EPUB and Kindle. Book excerpt:
