Download or read book Fabrication and Characterization of Substrate Materials for Trace Analytical Measurements by Surface Enhanced Raman Scattering SERS Spectroscopy Technique written by Pratima Vabbilisetty and published by . This book was released on 2008 with total page 154 pages. Available in PDF, EPUB and Kindle. Book excerpt: The detection of various compounds using Surface enhanced Raman Scattering (SERS) from colloidal suspensions of silver and gold colloids has been attempted. Different substrates have been utilized and SERS spectra for R6G, creatinine, imidazole and benzoic acid have been evaluated as a function of time. SERS investigations have been performed using model compounds to allow comparison between the substrates. Different concentrations of R6G have been used for the valuation of the analytical capabilities. Silver and gold colloids have been prepared and used for SERS measurements and for the fabrication of substrates having a layer of immobilized metal nanoparticles.

Download or read book Spark Ablation written by Andreas Schmidt-Ott and published by CRC Press. This book was released on 2019-12-19 with total page 292 pages. Available in PDF, EPUB and Kindle. Book excerpt: Spark ablation has been used worldwide for decades. However, in many fields, the special properties of nanoparticles, which come into play especially for sizes

Download or read book Surface Enhanced Vibrational Spectroscopy written by Ricardo Aroca and published by John Wiley & Sons. This book was released on 2006-05-01 with total page 260 pages. Available in PDF, EPUB and Kindle. Book excerpt: Surface Enhanced Vibrational Spectroscopy (SEVS) has reached maturity as an analytical technique, but until now there has been no single work that describes the theory and experiments of SEVS. This book combines the two important techniques of surface-enhanced Raman scattering (SERS) and surface-enhanced infrared (SEIR) into one text that serves as the definitive resource on SEVS. Discusses both the theory and the applications of SEVS and provides an up-to-date study of the state of the art Offers interpretations of SEVS spectra for practicing analysts Discusses interpretation of SEVS spectra, which can often be very different to the non-enhanced spectrum - aids the practicing analyst

Download or read book Assorted Dimensional Reconfigurable Materials written by Rajendra Dongre and published by BoD – Books on Demand. This book was released on 2020-09-09 with total page 142 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book outlines assorted dimensional materials acquired through reconfiguration of potentially applicable physical properties and functions of some multifunctional matrixes, composites, hybrids, and blends. As the frontiers of Science and Technology become widened, many multifunctional materials are created via physico-chemically reconfigured alterations to cater for remarkable applications in this era of modernization. Today, material for sustainable and green development in S

Download or read book Surface Enhanced Raman Scattering New Theoretical Approaches Materials and Strategies written by Ivano Alessandri and published by Frontiers Media SA. This book was released on 2020-03-25 with total page 175 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book De staten van Hollandt ende West Vrieslandt hebben tot vordernisse van d imposten vanden veertichsten penninghen vande verkoopinghe der onroerende goederen soo leenen als eyghen midtsgaders vanden dertichsten penninghen vande collateralen ende vreeemde successien als noch verklaert gheordonneert ende ghestatueert written by and published by . This book was released on 1604 with total page 8 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Counterterrorist Detection Techniques of Explosives written by Jehuda Yinon and published by Elsevier. This book was released on 2011-10-13 with total page 455 pages. Available in PDF, EPUB and Kindle. Book excerpt: The detection of hidden explosives has become an issue of utmost importance in recent years. While terrorism is not new to the international community, recent terrorist attacks have raised the issue of detection of explosives and have generated a great demand for rapid, sensitive and reliable methods for detecting hidden explosives. Counterterrorist Detection Techniques of Explosives covers recent advances in this area of research including vapor and trace detection techniques (chemiluminescence, mass spectrometry, ion mobility spectrometry, electrochemical methods and micromechanical sensors, such as microcantilevers) and bulk detection techniques (neutron techniques, nuclear quadrupole resonance, x-ray diffraction imaging, millimeter-wave imaging, terahertz imaging and laser techniques). This book will be of interest to any scientists involved in the design and application of security screening technologies including new sensors and detecting devices which will prevent the smuggling of bombs and explosives. * Covers latest advances in vapor and trace detection techniques and bulk detection techniques* Reviews both current techniques and those in advanced stages of development* Techniques that are described in detail, including its principles of operation, as well as its applications in the detection of explosives

Download or read book Nanotechnology Research written by Xiaohua J. Huang and published by Nova Publishers. This book was released on 2008 with total page 390 pages. Available in PDF, EPUB and Kindle. Book excerpt: Nanotechnology is a 'catch-all' description of activities at the level of atoms and molecules that have applications in the real world. A nanometer is a billionth of a meter, about 1/80,000 of the diameter of a human hair, or 10 times the diameter of a hydrogen atom. Nanotechnology is now used in precision engineering, new materials development as well as in electronics; electromechanical systems as well as mainstream biomedical applications in areas such as gene therapy, drug delivery and novel drug discovery techniques. This book presents new and important breakthroughs in the field from around the world.

Download or read book SOLUTION PROCESSABLE SURFACE ENHANCED RAMAN SPECTROSCOPY SERS SUBSTRATE written by Narayan Sharma and published by . This book was released on 2015 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt: Surface Enhanced Raman Spectroscopy is a powerful analytical tool to obtain information on molecular composition. This technique has advanced greatly since its discovery, allowing Raman spectroscopic analysis down to the detection of single molecule. The heart of SERS performance lies on the choice and fabrication of SERS substrate. The most investigated metals for SERS substrates are Au and Ag. Unfortunately, the fabrication of such devises poses a significant challenge due to an expensive deposition technology including, vapor deposition, electron-beam lithography, focused ion-beam lithography, and nano-transfer printing. Herein, we report a simple and low-cost solution processing method to fabricate SERS substrates. Au nanoparticles and Au/CdS core/shell nanoparticles were synthesized and their solutions deposited on glass plates in the form of nanoparticle films. Although the enhancement of Raman signal due to Ag nanoparticle substrates is greater than that of Au, the high stability and a wide variety of fabrication methods makes Au nanoparticles more favorable candidates for SERS substrates. The performance of the SERS substrates fabricated using this method was found to be comparable with the commercially available substrates.

Download or read book Improving Analytical Utility of Surface Enhanced Raman Spectroscopy Through Unique Lithographic Substrate Development written by Sabrina Marie Wells and published by . This book was released on 2012 with total page 173 pages. Available in PDF, EPUB and Kindle. Book excerpt: Surface enhanced Raman spectroscopy (SERS) has the potential to be a useful analytical technique due to large signal enhancements. Unfortunately, SERS has several drawbacks, including a lack of reproducibility, which inhibits it from being a practical option. These large signals often arise from "hot spots" of extremely high enhancement on nanofeatured metallic substrates, the most common being comprised of aggregated silver colloid. It is difficult to reproducibly create these hot spots due to the randomness of the colloid substrates. However, through controlled substrate fabrication, many problems associated with SERS analysis can be overcome. Electron beam lithography (EBL) combined with reactive-ion etching (RIE) was used to fabricate a wide variety of aggregate-like structures that allow for methodically surveying the system to determine if areas of high enhancement are present. Any well performing areas were then recreated consistently to produce areas of similar enhancement. While the aforementioned "combinatorial" approach has its advantages, simple structures are often easier to fabricate and theoretically model. As such, a single structure consisting of a metal disc on a silicon pillar was created. A variety of tests were performed on these structures to determine the overall utility of the simple pillar system. The system was found to possess extremely high enhancement, making it an ideal system to both theoretically model and test experimentally. The system also has strong enough overall signal to allow for potential analytical implications. Studies were also conducted to determine the feasibility of using a strong enhancing silicon nanopillar system to make analytical measurements without a metal surface present. A special fabrication process using EBL and RIE was used to created tall, high aspect ratio pillars of known diameters. These nanopillars were then observed to exhibit special optical properties not seen in bulk silicon. Aside from modest Raman enhancement, these structures also demonstrated the ability to enhance the signal of specific analytes similar to SERS. Surface enhanced fluorescence (SEF) was also observed for different analytes, allowing for a variety of potential analytical areas.

Download or read book An Overview of Anodic Oxides Derived Advanced Nanocomposites Substrate for Surface Enhance Raman Spectroscopy written by Marta Michalska-Domanska and published by . This book was released on 2019 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Surface-enhanced Raman spectroscopy (SERS) is an analytical technique, which allows to identify traces of chemical or biological substances in many field, like pharmaceutical and food industries, homeland security, nanosensors, or environmental protection. The analytes are identified based on their vibrational spectra, unique for a given compound. The advantage of SERS is effective qualitative analysis of trace amounts of analyte, but the disadvantages are stability of substrate and repeatability of measurements. The challenge is to improve SERS substrates to minimize these drawbacks. Nowadays high-precision electron beam lithography or focused ion beam is used in SERS substrate fabrication, which is impractical for large-scale production. In recent years, researchers,Äô attention has focused on porous anodic oxides, with inexpensive and scalable production method, as potential materials for SERS substrates. This chapter will discuss the progress of anodic oxides used as a SERS substrate, and the brief description of conventional SERS substrate fabrication methods will be presented.

Download or read book Carbon Nanomaterials Based Sensors written by Jamballi G. Manjunatha and published by Elsevier. This book was released on 2022-04-28 with total page 468 pages. Available in PDF, EPUB and Kindle. Book excerpt: Carbon Nanomaterials-Based Sensors: Emerging Research Trends in Devices and Applications covers the most recent research and design trends for carbon nanomaterials-based sensors for a variety of applications, including clinical and environmental uses, and more. Carbon nanomaterials-based sensors can be used with high sensitivity, stability and accuracy compared to other techniques. Written by experts in their given fields from around the world, this book helps researchers solve the particular challenges they face when developing new types of sensors. It instructs how to make sensitive, selective, robust, fast-response and stable carbon nanomaterial-based sensors, as well as how to utilize them in real life. Covers the environmental monitoring and analytical implications of electro-analytical methods, one of the most dynamically developing branches of carbon nanomaterials Includes a complete discussion of functionalized nanostructure materials reformulated with noble materials and advanced characteristics for improved applications when compared to standard materials Covers sustainability and challenges in the commercialization of carbon nanomaterials-based sensors

Download or read book Recent Developments in Atomic Force Microscopy and Raman Spectroscopy for Materials Characterization written by Chandra Shakher Pathak and published by BoD – Books on Demand. This book was released on 2022-01-07 with total page 275 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book contains chapters that describe advanced atomic force microscopy (AFM) modes and Raman spectroscopy. It also provides an in-depth understanding of advanced AFM modes and Raman spectroscopy for characterizing various materials. This volume is a useful resource for a wide range of readers, including scientists, engineers, graduate students, postdoctoral fellows, and scientific professionals working in specialized fields such as AFM, photovoltaics, 2D materials, carbon nanotubes, nanomaterials, and Raman spectroscopy.

Download or read book Paper Based Analytical Devices for Chemical Analysis and Diagnostics written by William R. de Araujo and published by Elsevier. This book was released on 2021-10-27 with total page 300 pages. Available in PDF, EPUB and Kindle. Book excerpt: Paper-Based Analytical Devices for Chemical Analysis and Diagnostics is a valuable source of information for those interested in microfluidics, bioanalytical devices, chemical instrumentation/mechanization, in-field analysis, and more. This book provides a critical review of the scientific and technological progress of paper-based devices, as well as future trends in the field of portable paper-based sensors for chemical analysis and diagnostics directly at point of need. It uniquely focuses on the analytical techniques associated with each type of device, providing a practical framework for any researcher to use while learning how to use new types of devices in their work, deciding which ones are best for their needs, developing new devices, or working toward commercialization. Reviews the evolution of this area and offers predictions for the future of the field of paper-based analytical devices Explores the analytical techniques used in development of paper-based devices Discusses challenges and shortcomings specific to each type of device, helping users and developers to avoid pitfalls

Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1991 with total page 1460 pages. Available in PDF, EPUB and Kindle. Book excerpt: Lists citations with abstracts for aerospace related reports obtained from world wide sources and announces documents that have recently been entered into the NASA Scientific and Technical Information Database.

Download or read book Organic Pollutants Ten Years After the Stockholm Convention written by Tomasz Puzyn and published by BoD – Books on Demand. This book was released on 2012-02-24 with total page 486 pages. Available in PDF, EPUB and Kindle. Book excerpt: Ten years after coming into force of the Stockholm Convention on Persistent Organic Pollutants (POPs), a wide range of organic chemicals (industrial formulations, plant protection products, pharmaceuticals and personal care products, etc.) still poses the highest priority environmental hazard. The broadening of knowledge of organic pollutants (OPs) environmental fate and effects, as well as the decontamination techniques, is accompanied by an increase in significance of certain pollution sources (e.g. sewage sludge and dredged sediments application, textile industry), associated with a potential generation of new dangers for humans and natural ecosystems. The present book addresses these aspects, especially in the light of Organic Pollutants risk assessment as well as the practical application of novel analytical methods and techniques for removing OPs from the environment. Providing analytical and environmental update, this contribution can be particularly valuable for engineers and environmental scientists.

Download or read book Materials Processing Technology ICAMMP2011 written by Xiang Hua Liu and published by Trans Tech Publications Ltd. This book was released on 2011-12-06 with total page 2520 pages. Available in PDF, EPUB and Kindle. Book excerpt: These volumes comprise papers, on the topic of “Materials Processing Technology”, selected from the second International Conference on Advances in Materials and Manufacturing (ICAMMP 2011) held on the 16-18th December 2011 in Guilin, China. The 469 peer-reviewed papers are grouped into the chapters: 1: Advanced Engineering Materials, 2: Surface Engineering/Coatings, 3: Materials Forming, Machining and Joining, 4: Laser Processing, 5: Powder Metallurgy and Plastic Deformation, 6: Friction and Wear, 7: Waste-to-Energy, Waste Management and Waste Disposal, 8: CAD/CAE/CAM, 9: Product Design and Development, 10: Other Related Topics.