Update On Gold Nanoparticles

In the last decade, gold nanoparticles have provided a suitable platform for the development of novel and efficient diagnostic and therapeutic tools, which avoid the typical drawbacks of the old systems. They are biocompatible and they can be easily synthesised, encapsulated and functionalised with (bio)molecules. Nanoparticles produced by a wet chemistry synthesis have the geometry, which enables the complete control of their optical and physical properties. It is also possible to influence the targeting and stability/release behaviour by coating the nanoparticle surface. In this Update the reader can find in a single volume the methods used most often for the synthesis and coating of gold nanoparticles (spheres, cages, cubes, rods), the links between optical features and geometries of gold nanoparticles, and the novel applications in nanomedicine of gold nanoparticles determined by their geometry. One of the main objectives of this Update is to provide, a readily comprehensible connection in all the chapters between the geometry of gold nanoparticles and their final applications. Another target of this book is to provide information about efficient processes for the synthesis and the coating of gold nanoparticles, all of which have been directly tested by the author. This Update offers comprehensive information on the whole topic from the synthesis of the gold nanoparticles to their medical applications; this is accompanied by a complete and recent bibliography, in order to give to the readers the opportunity to research further the topics addressed in the book. In this way, students and researchers from academia and industry can have a complete picture of gold nanostructures, physicians and biologists can develop ideas and applications for the new nano-tools, and chemists can have a general guide to the synthesis of gold nanoparticles. This is a state-of-the-art guide for the synthesis and uses of gold nanoparticles.

Gold Nanoparticles for Physics, Chemistry and Biology offers an overview of recent research into gold nanoparticles, covering their discovery, usage and contemporary practical applications. This Second Edition begins with a history of over 2000 years of the use of gold nanoparticles, with a review of the specific properties which make gold unique. Updated chapters include gold nanoparticle preparation methods, their plasmon resonance and thermo-optical properties, their catalytic properties and their future technological applications. New chapters have been included, and reveal the growing impact of plasmonics in research, with an introduction to quantum plasmonics, plasmon assisted catalysis and electro-photon conversion. The growing field of nanoparticles for health is also addressed with a study of gold nanoparticles as radiosensibiliser for radiotherapy, and of gold nanoparticle functionalisation. This new edition also considers the relevance of bimetallic nanoparticles for specific applications. World-class scientists provide the most up-to-date findings for an introduction to gold nanoparticles within the related areas of chemistry, biology, material science, optics and physics. It is perfectly suited to advanced level students and researchers looking to enhance their knowledge in the study of gold nanoparticles.

Gold Nanoparticles - Reaching New Heights contains recent research on the preparation, characterization, fabrication, and potential of optical and biological applications of gold nanoparticles (AuNPs). It is promising novel research that has received a lot of interest over the last few decades. It covers advanced topics on optical, physical, medicinal, and biological applications of AuNPs. Development of green nanotechnology is generating the interest of researchers towards the synthesis of eco-friendly, safe, non-toxic applications, which can be used for manufacture at a large scale. These are simple, cost-effective, stable, enduring, and reproducible aqueous room temperature synthesis applications to obtain the self-assembly of AuNPs. This potentially unique work offers various approaches to R

Due to their attractive electronic, optical, and thermal properties; gold nanoparticles (AuNPs) have emerged with great interest, as well as catalytic properties, in the fields of physics, chemistry, biology, medicine, material science and some interdisciplinary fields. This book examines a broad range of applications of gold nanoparticles such as: gold nanoparticles as an antigen carrier and as an adjuvant; laser synthesis of gold nanoparticles and the control over their properties; gold on carbon catalysts; gold nanoparticles as a delivery vehicle in biomedical applications; solution and solid-state methods to prepare Au nanoparticles; gold nanoparticles and their in-vitro property, the usefulness of gold nanoparticles in emerging infectious disease situations and a host of others.

Gold Nanoparticles: Advances in Research and Applications opens by presenting the properties of gold nanoparticles and the necessity of a thermodynamic investigation. The physics of heat generation and heat transfer by diffusion, convection and radiation are examined, and the effect of thermoplasmonics on the random lasing of nanoparticles is described. Nanoparticles are being incorporated into a variety of devices to improve their performance. Recent advances in applications of the plasmonic effects of nanoparticles, significantly focused on the incorporation of gold nanoparticles to improve solar cell efficiencies, are discussed. The authors go on to investigate the formation of elongated gold nanoparticles, which occurred by laser ablation of gold target in aqueous solutions containing divalent ions. Additionally, the influence of a permanent external magnetic field on generated earlier colloidal solutions of Au nanoparticles is investigated. The penultimate chapter describes the events that lead to gold's well-deserved reputation as a good catalyst for several reactions, and considers some of the applications and catalytic uses of gold, mostly in the form of nanoparticles. The concluding study explores gold nanoparticles' applications for the treatment of various forms of cancer, such as adenocarcinoma, melanoma, breast cancer, gastric, laryngeal, lung, oral cancer and prostate cancer. Gold nanoparticles are used in cancer treatment primarily as drug carriers, photosensitizers and radiosensitizers.

This edited book highlights the central players in the Bionanotechnology field - which are the nanostructures and biomolecules. It provides broad examples of current developments in Bionanotechnology research and is an excellent introduction to the field. The book describes how nanostructures are synthesized and details the wide variety of nanostructures available for biological research and applications. Examples of the unique properties of nanostructures are provided along with the current applications of these nanostructures in biology and medicine. The final chapters of the book describe the toxicity of nanostructures.

This thesis addresses the fabrication and investigation of the optical response of gold nanoparticle arrays supported on insulating LiF(110) nanopatterned substrates. Motivated by the discovery of the intriguing effects that arise when electromagnetic radiation interacts with metallic nanostructures, the thesis focuses on the application of bottom-up approaches to the fabrication of extended-area plasmonic nanostructures, and the optimization of their optical response. By developing a sophisticated effective-medium model and comparing the experimental findings with model calculations, the author explores the role of the interparticle electromagnetic coupling and array dimensionality on the collective plasmonic behavior of the array, giving insights into the physical mechanisms governing the optical response.