Download or read book Trace Detection of Ionic Species with Surface Enhanced Raman Spectroscopy written by Ken I. Mullen and published by . This book was released on 1992 with total page 9 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Advanced Substrate Design for Label free Detection of Trace Organic and Biological Molecules written by Zachary Allen Combs and published by . This book was released on 2013 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: To truly realize and exploit the extremely powerful information given from surface-enhanced Raman scattering (SERS) spectroscopy, it is critical to develop an understanding of how to design highly sensitive and selective substrates, produce specific and label-free spectra of target analytes, and fabricate long-lasting and in-the-field ready platforms for trace detection applications. The study presented in this dissertation investigated the application of two- and three-dimensional substrates composed of highly-ordered metal nanostructures. These systems were designed to specifically detect target analytes that would enable the trace, label-free, and real-time detection of chemicals and biomolecules. Specifically, this work provides new insight into the required properties for maximizing electromagnetic and chemical Raman enhancement in three-dimensional porous alumina substrates by designing metal nanostructure shape, density, aggregated state, and most importantly aligning the substrate pore size with the excitation wavelength used for plasmonic enhancement leading to the ppb detection of vapor phase hazardous chemicals. A new micropatterned silver nanoparticle substrate fabricated via soft lithography with specific functionalization was developed, which allows the simultaneous analyte and background detection for trace concentrations of the target biomolecule, immunoglobulin G. Also, a novel functionalized SERS hot spot fabrication technique, which utilizes highly specific aptamers as both the mediator for electrostatic assembly of gold nanoframe dimers as well as the biorecognition element for the target, riboflavin, to properly locate the tethered biomolecule within the enhanced region for trace detection, was demonstrated. We suggest that the understanding of SERS phenomena that occur at the interface of nanostructures and target molecules combined with the active functionalization and organization of metal nanostructures and trace detection of analytes discussed in this study can provide important insight for addressing some of the challenges facing the field of SERS sensor design such as high sensitivity and selectivity, reliable and repeatable label-free identification of spectral peaks, and the well-controlled assembly of functional metal nanostructures. This research will have a direct impact on the future application of SERS sensors for the trace detection of target species in chemical, environmental, and biomedical fields through the development of specific design criteria and fabrication processes.

Download or read book Surface enhanced Raman Scattering for Trace Chemical Detection written by Nicholas Paul William Pieczonka and published by . This book was released on 2007 with total page 408 pages. Available in PDF, EPUB and Kindle. Book excerpt:

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 Surface Enhanced Raman Spectroscopy Biosensing and Diagnostic Technique for Healthcare Applications written by Swati Jain and published by Bentham Science Publishers. This book was released on 2021-12-28 with total page 263 pages. Available in PDF, EPUB and Kindle. Book excerpt: Surface enhanced Raman spectroscopy (SERS) is a technique applied in multidisciplinary research. Its use has tremendously grown in the last 40 years owing to improved nanofabrication, biomolecules extraction and sensitive signal acquisition techniques. This book focuses on the underlying principles of SERS by emphasizing on basic concepts and background information about the subject. Chapters explain the physics of Raman spectroscopy while also indicating its relevance to designing protocols and methodologies for biosensing and imaging. The book gives updated and recent details on colloids and nanostructures, their fabrication, surface engineering and immobilization methods, all in context to SERS based biosensing. Key Features: - Covers basic knowledge and new research about surface enhanced Raman spectroscopy (SERS) - Provides a complete framework on SERS based biosensing with concise chapters - Focuses on different active molecules critical to SERS and associated developed nanoassemblies - Presents information about ongoing research on SERS imaging applications - Highlights bottlenecks of SERS technique in biosensing - Includes references for further reading This book serves as a reference book for researchers and academicians and will also provide a reasonable understanding on the topic of SERS to newcomers irrespective of their background in a simple manner. The book is of interest to all readers within the scientific community involved with Raman spectroscopy, including chemists, physicists, biologists, material scientists as well as biomedical engineers.

Download or read book Detection of Biological Species by Surface Enhanced Raman Scattering written by Atanu Sengupta and published by . This book was released on 2006 with total page 412 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Raman Spectroscopy and Applications written by Khan Maaz and published by BoD – Books on Demand. This book was released on 2017-02-15 with total page 366 pages. Available in PDF, EPUB and Kindle. Book excerpt: Raman spectroscopy has a number of applications in various fields including material science, physics, chemistry, biology, geology, and medicine. This book illustrates necessary insight and guidance in the field of Raman spectroscopy with detailed figures and explanations. This presents deep understanding of new techniques from basic introduction to the advance level for scientists and engineers. The chapters cover all major aspects of Raman spectroscopy and its application in material characterization with special emphasis on both the theoretical and experimental aspects. This book is aimed to provide solid foundation of Raman spectroscopy to the students, scientists, and engineers working in various fields as mentioned above.

Download or read book Surface Enhanced Raman Scattering written by Zhong-Qun Tian and published by John Wiley & Sons Incorporated. This book was released on 2010-06-14 with total page 400 pages. Available in PDF, EPUB and Kindle. Book excerpt: Surface-Enhanced Raman Spectroscopy: Principles, Experiments, and Applications is a comprehensive, up to date, and balanced treatment of the theoretical and practical aspects of Surface-Enhanced Raman Scattering (SERS), a useful branch of spectroscopy for several areas of science. This book describes the basic principles of SERS, including SERS mechanisms, performing SERS measurements, and interpreting data. Also emphasized are applications in electrochemistry; catalysis; surface processing and corrosion; Self-Assemble-Layer and L-B Films; polymer science; biology; medicine and drug analysis; sensors; fuel cells; forensics; and archaeology. It is an essential guide for student and professional analytical chemists.

Download or read book Nanoelectronic Device Applications Handbook written by James E. Morris and published by CRC Press. This book was released on 2017-11-22 with total page 940 pages. Available in PDF, EPUB and Kindle. Book excerpt: Nanoelectronic Device Applications Handbook gives a comprehensive snapshot of the state of the art in nanodevices for nanoelectronics applications. Combining breadth and depth, the book includes 68 chapters on topics that range from nano-scaled complementary metal–oxide–semiconductor (CMOS) devices through recent developments in nano capacitors and AlGaAs/GaAs devices. The contributors are world-renowned experts from academia and industry from around the globe. The handbook explores current research into potentially disruptive technologies for a post-CMOS world. These include: Nanoscale advances in current MOSFET/CMOS technology Nano capacitors for applications such as electronics packaging and humidity sensors Single electron transistors and other electron tunneling devices Quantum cellular automata and nanomagnetic logic Memristors as switching devices and for memory Graphene preparation, properties, and devices Carbon nanotubes (CNTs), both single CNT and random network Other CNT applications such as terahertz, sensors, interconnects, and capacitors Nano system architectures for reliability Nanowire device fabrication and applications Nanowire transistors Nanodevices for spintronics The book closes with a call for a new generation of simulation tools to handle nanoscale mechanisms in realistic nanodevice geometries. This timely handbook offers a wealth of insights into the application of nanoelectronics. It is an invaluable reference and source of ideas for anyone working in the rapidly expanding field of nanoelectronics.

Download or read book Plasmonic Sensors and their Applications written by Adil Denizli and published by John Wiley & Sons. This book was released on 2021-11-22 with total page 260 pages. Available in PDF, EPUB and Kindle. Book excerpt: Plasmonic Sensors and their Applications A practically-focused reference and guide on the use of plasmonic sensing as a faster and cheaper alternative to conventional sensing platforms Plasmons, the collective oscillations of electrons occurring at the interface between any two materials, are sensitive to changes in dielectric properties near metal surfaces. Plasmonic sensors enable the real-time study of unique surface properties by monitoring the effect of the material interaction at the sensor surface. Plasmonic sensing techniques offer fast, label-free analysis, and hold advantages over labelling techniques such as ELISA (enzyme-linked immunosorbent assay). Plasmonic Sensors and their Applications examines the development and use of highly sensitive and selective plasmonic sensing platforms in chemistry, biotechnology, and medicine. Contributions by an international panel of experts provide timely and in-depth coverage of both real-world applications and academic research in the dynamic field. The authors describe advances in nanotechnology, polymer chemistry, and biomedicine, explore new and emerging applications of plasmonic sensing, discuss future trends and potential research directions, and more. This authoritative volume: Demonstrates why plasmonic sensing is a profitable method for easy and label-free analysis in real-time Covers a variety of applications of plasmonic sensors, such as disease diagnostics, vitamin detection, and detection of chemical and biological warfare agents Includes a brief introduction to the history and development of plasmonic sensors Provides concise theory and background for every application covered in the text Plasmonic Sensors and their Applications is an invaluable resource for analytical chemists, biochemists, biotechnologists, protein and surface chemists, and advanced students of biotechnology.

Download or read book Surface enhanced Raman Scattering SERS Based Detection of Ions written by Piotr Piotrowski and published by . This book was released on 2017 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Słowa kluczowe: surface enhanced Raman scattering, SERS, Raman spectroscopy, vibrational spectroscopy, infrared spectroscopy, nanostructures, metal nanoparticles, plasmonic nanoparticles, Janus nanoparticles, ion nanosensors, optical nanosensors, detection of cations, detection of anions, powierzchniowo wzmocnione rozproszenie Ramana, SERS, spektroskopia Ramana, spektroskopia oscylacyjna, spektroskopia w podczerwieni, nanostruktury, nanocząstki metali, nanocząstki plazmonowe, nanocząstki janusowe, nanoczujniki jonów, nanoczujniki optyczne, detekcja kationów, detekcja anionów.

Download or read book Analytical Techniques to Optimize Trace Insecticide Detection Mechanisms Using Surface Plasmon Resonance and Surface Enhanced Raman Spectroscopy written by Adrienne L. Phifer and published by . This book was released on 2013 with total page 76 pages. Available in PDF, EPUB and Kindle. Book excerpt: This thesis uses Surface Plasmon Resonance (SPR) and Surface-Enhanced Raman Spectroscopy (SERS) to optimize trace insecticide detection mechanisms. Traditional methods for trace insecticide detection include Gas Chromatography (GC)/Mass Spectrometry (MS) and Enzyme Linked Immunosorbent Assay (ELISA) methods. Although standard, these methods require large sample volumes and extensive sample preparation. A diagnostic method overcoming these issues is SERS. SERS increases the Raman signal of an analyte by chemisorption of the molecule to the surface of a noble metal or excitation of surface plasmon resonance at the metal surface. To optimize SERS enhancement factors we have used aptamers to increase a molecule's SERS signal by bringing the molecule in closer proximity to the metal surface. In this thesis, the efficiency of two malathion-specific aptamers is quantified using surface plasmon resonance techniques. Additionally, a novel Surface-Enhanced Raman Diagnostic Membrane is utilized for insecticide residue analysis. iii.

Download or read book Detection of Molecular and Biomolecular Species by Surface Enhanced Raman Scattering Nanoengineered Substrates for SERS Detection written by and published by . This book was released on 2004 with total page 33 pages. Available in PDF, EPUB and Kindle. Book excerpt: Our research has confirmed that the significant Raman enhancement from a nanoshell based substrate is generated by the electromagnetic enhancement of individual nanoshells, not aggregates (dimers, trimers, etc.). Unlike metal colloids and roughened surfaces, the significant Raman enhancements achieved are consistent across the substrate and are not related to "hot spots" associated with aggregate geometries. This will allow the reproducible manufacture of a substrate with superior enhancement for use in future target specific SERS applications. The Raman enhancement achieved this individual nanoshell" substrate equals or exceeds 10 exp 10, evaluated using direct comparison between the unenhanced and enhanced signal from the same molecule. It is important to note that when these enhancements are compared to those of Kneipp et a., who reported values of 10 exp 10, the nanoshell-based enhancement appears to be approximately 10 exp 15 using their analytical method. The enhancement factors demonstrated are consistent with reported enhancements factors necessary for single molecule detection. Nanoshell-based SERS substrates have been reproducibly manufactured and tested for stability under various conditions. The method of manufacturing will allow use with both dry and aqueous samples.

Download or read book Nanomaterials in Environmental Analysis written by Suresh Kumar Kailasa and published by Elsevier. This book was released on 2024-05-31 with total page 612 pages. Available in PDF, EPUB and Kindle. Book excerpt: In todays’ world with its widespread usage of personal-care products, pharmaceuticals, surfactants, flame retardants, plasticizers, various industrial additives, metals and metalloids, pesticides, and pesticide metabolites, environmental contaminants are an increasing source of pollution with a severe effect on the ecological system. Industries that produce these contaminants must find answers to remediate this.Nanomaterials in Environmental Analysis contributes to solving this problem by providing researchers in industry and academia with promising applications of nanoparticles in detection techniques and in removal of chemical species from the environment. Each chapter covers an aspect of using nanoparticles in detecting, measuring and remediating toxic chemical species in the environment. Explores the application of nanoparticles for the identification and quantification of pollutants from various environments Serves as a quick reference and source of knowledge on nanoparticles-based techniques for environmental applications Takes foundational knowledge for application to research in the area Provides future trends

Download or read book Surface Enhanced Raman Scattering written by Katrin Kneipp and published by Springer Science & Business Media. This book was released on 2006-06-21 with total page 473 pages. Available in PDF, EPUB and Kindle. Book excerpt: Almost 30 years after the first reports on surface-enhanced Raman signals, the phenomenon of surface-enhanced Raman scattering (SERS) is now well established. SERS gained particular interest after single-molecule Raman spectroscopy had been demonstrated. This book summarizes and discusses present theoretical approaches that explain the phenomenon of SERS and reports on new and exciting experiments and applications of the fascinating spectroscopic effect.

Download or read book Principles of Surface Enhanced Raman Spectroscopy written by Eric Le Ru and published by Elsevier. This book was released on 2008-11-17 with total page 688 pages. Available in PDF, EPUB and Kindle. Book excerpt: SERS was discovered in the 1970s and has since grown enormously in breadth, depth, and understanding. One of the major characteristics of SERS is its interdisciplinary nature: it lies at the boundary between physics, chemistry, colloid science, plasmonics, nanotechnology, and biology. By their very nature, it is impossible to find a textbook that will summarize the principles needed for SERS of these rather dissimilar and disconnected topics. Although a basic understanding of these topics is necessary for research projects in SERS with all its many aspects and applications, they are seldom touched upon as a coherent unit during most undergraduate studies in physics or chemistry. This book intends to fill this existing gap in the literature. It provides an overview of the underlying principles of SERS, from the fundamental understanding of the effect to its potential applications. It is aimed primarily at newcomers to the field, graduate students, researchers or scientists, attracted by the many applications of SERS and plasmonics or its basic science. The emphasis is on concepts and background material for SERS, such as Raman spectroscopy, the physics of plasmons, or colloid science, all of them introduced within the context of SERS, and from where the more specialized literature can be followed. Represents one of very few books fully dedicated to the topic of surface-enhanced Raman spectroscopy (SERS) Gives a comprehensive summary of the underlying physical concepts around SERS Provides a detailed analysis of plasmons and plasmonics

Download or read book Optical Imaging in Human Disease and Biological Research written by Xunbin Wei and published by Springer Nature. This book was released on 2021-05-29 with total page 309 pages. Available in PDF, EPUB and Kindle. Book excerpt: The book introduces readers to the basic principle of optical imaging technologies. Focusing on human disease diagnostics using optical imaging methods, it provides essential information for researchers in various fields and discusses the latest trends in optical imaging. In recent decades, there has been a huge increase in imaging technologies and their applications in human diseases diagnostics, including magnetic resonance imaging, x-ray computed tomography, and nuclear tomographic imaging. This book promotes further developments to extend optical imaging to a wider range of disease diagnostics. It is a valuable resource for researchers and students in the field of biomedical optics, as well as for clinicians.