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Books > Science & Mathematics > Chemistry > Physical chemistry
Concentrating on techniques for the detection and measurement of
radioactivity, this book offers a guide to selecting the type of
counter, type of source sample, duration for which the counting
must be made, and the radiation emitted by the isotope for its
efficient detection. It introduces a novel concept to explain not
only the decay processes but also the selection of counting
procedures for detecting and measuring radioactivity. The author
builds up the foundation from the nature of the interaction of
radiation with matter. He also highlights the differences between
an ordinary chemical laboratory and a radiochemical one.
This is the fifth volume of "Advances in Sonochemistry" the first
having been published in 1990. The definition of sonochemistry has
developed to include not only the ways in which ultrsound has been
harnessed to effect chemistry but also its uses in material
processing. Subjects included range from chemical dosimetry to
ultrasound in microbiology to ultrasound in the extraction of plant
materials and in leather technology.
The progress in device technologies are surveyed in this volume.
Included are Si/ (Si-Ge) heterojunctions for high-speed integrated
circuits. Schottky-barrier arrays in Si and Si-Ge alloys for
infrared imaging, III-V quantum-well detector structures operated
in the heterodyne mode for high-data-rate communications, and III-V
heterostructures and quantum-wells for infrared transmissions.
Gas-phase ion chemistry is a broad field which has many
applications and which encompasses various branches of chemistry
and physics. An application that draws together many of these
branches is the synthesis of molecules in interstellar clouds. This
was part of the motivation for studies on the neutralization of
ions by electrons and on isomerization in ion-neutral associations.
The results of investigations of particular aspects of ion dynamics
are presented in this volume. Solvation in ion-molecule reactions
is discussed and extended to include multiply charged ions by the
application of electrospray techniques. This volume also provides a
wealth of information on reaction thermodynamics which is critical
in determining reaction spontaneity and availability of reaction
channels. More focused studies are also presented towards the end
of this volume, relating to the ionization process and its
nature.
Based on the successful first edition, this book gives a general
theoretical introduction to electrochemical power cells (excluding
fuel cells) followed by a comprehensive treatment of the principle
battery types - covering chemistry, fabrication characteristics and
applications. There have been many changes in the field over the
last decade and many new systems have been commercialised. Since
the recent advent of battery powered consumer products (mobile
phones, camcorders, lap-tops etc.) advanced power sources have
become far more important. This text provides an up-to-date account
of batteries which is accessible to anyone with a basic knowledge
of chemistry and physics.
Thermodynamic property data are important in many engineering
applications in the chemical processing and petroleum refining
industries. The "Handbook of Thermodynamic Diagrams" series
presents volume and enthalpy diagrams (graphs) for the major
organic chemicals and hydrocarbons, as well as the major inorganic
compounds and elements. The graphs, arranged by carbon number and
chemical formula, cover a wide range of pressures and temperatures
to enable engineers to determine quickly values at various points.
This volume covers inorganic compounds and elements.
This series provides engineers with vapor pressure data for process
design, production, and environmental applications.
This book focuses on broadly defined areas of chemical information
science- with special emphasis on chemical informatics- and
computer-aided molecular design. The computational and
cheminformatics methods discussed, and their application to drug
discovery, are essential for sustaining a viable drug development
pipeline. It is increasingly challenging to identify new chemical
entities and the amount of money and time invested in research to
develop a new drug has greatly increased over the past 50 years.
The average time to take a drug from clinical testing to approval
is currently 7.2 years. Therefore, the need to develop predictive
computational techniques to drive research more efficiently to
identify compounds and molecules, which have the greatest
likelihood of being developed into successful drugs for a target,
is of great significance. New methods such as high throughput
screening (HTS) and techniques for the computational analysis of
hits have contributed to improvements in drug discovery efficiency.
The SARMs developed by Jurgen and colleagues have enabled display
of SAR data in a more transparent scaffold/functional SAR table.
There are many tools and databases available for use in applied
drug discovery techniques based on polypharmacology. The
cheminformatics approaches and methodologies presented in this
volume and at the Skolnik Award Symposium will pave the way for
improved efficiency in drug discovery. The lectures and the
chapters also reflect the various aspects of scientific enquiry and
research interests of the 2015 Herman Skolnik award recipient.
Low-Energy Nuclear Reactions and New Energy is a summary of
selected experimental and theoretical research performed over the
last 19 years that gives profound and unambiguous evidence for low
energy nuclear reaction (LENR), historically known as cold fusion.
In 1989, the subject was announced with great fanfare, to the
chagrin of many people in the science community. However, the
significant claim of its discoverers, Martin Fleischmann and
Stanley Pons, excess heat without harmful neutron emissions or
strong gamma radiation, involving electrochemical cells using heavy
water and palladium, has held strong.
In recent years, LENR, within the field of condensed matter nuclear
science, has begun to attract widespread attention and is regarded
as a potential alternative and renewable energy source to confront
climate change and energy scarcity. The aim of the research is to
collect experimental findings for LENR in order to present
reasonable explanations and a conclusive theoretical and practical
working model.
The goal of the field is directed toward the fabrication of LENR
devices with unique commercial potential demonstrating an
alternative energy source that does not produce greenhouse gases,
long-lived radiation or strong prompt radiation. The idea of LENR
has led to endless discussions about the kinetic impossibility of
intense nuclear reactions with high coulomb barrier potential.
However, recent theoretical work may soon shed light on this
mystery.
Understanding this process is one of the most challenging and
perhaps important issues in the scientific world. This book
includes previously unpublished studies, new and controversial
theories to approach LENR with access to new sources and
experimental results. The book offers insight into this
controversial subject and will help readers re-evaluate their
perspective on LENR as a possible alternative energy source.
Chemometrics and Chemoinformatics gives chemists and other
scientists an introduction to the field of chemometrics and
chemoinformatics. Chemometrics is an approach to analytical
chemistry based on the idea of indirect observation. Measurements
related to the chemical composition of a substance are taken, and
the value of a property of interest is inferred from them through
some mathematical relation. Basically, chemometrics is a process.
Measurements are made, data is collected, and information is
obtained to periodically assess and acquire knowledge. This, in
turn, has led to a new approach for solving scientific problems:
(1) measure a phenomenon or process using chemical instrumentation
that generates data inexpensively, (2) analyze the multivariate
data, (3) iterate if necessary, (4) create and test the model, and
(5) develop fundamental multivariate understanding of the process.
Chemoinformatics is a subfield of chemometrics, which encompasses
the analysis, visualization, and use of chemical structural
information as a surrogate variable for other data or information.
The boundaries of chemoinformatics have not yet been defined. Only
recently has this term been coined. Chemoinformatics takes
advantage of techniques from many disciplines such as molecular
modeling, chemical information, and computational chemistry. The
reason for the interest in chemoinformatics is the development of
experimental techniques such as combinatorial chemistry and
high-throughput screening, which require a chemist to analyze
unprecedented volumes of data. Access to appropriate algorithms is
crucial if such experimental techniques are to be effectively
exploited for discovery. Many chemists want to use chemoinformatic
methods in their work but lack the knowledge required to decide
which techniques are the most appropriate.
Following Ionic Liquids: Industrial Applications to Green
Chemistry, SS #818, by the same editors, this book focuses on
exciting new developments in ionic liquids.
Developing innovative efficient and sensitive spectroscopic and
optical techniques for studying biomedically relevant molecules,
structures and processes in vitro and in vivo is a field of rapidly
growing interest. This symposium book covers novel and exciting
approaches in biomedical spectroscopy. Several chapters deal with
infrared and Raman spectroscopy. These complimentary vibrational
spectroscopic techniques are capable of monitoring molecular
structures as well as structural changes. Such studies are of
interest for understanding diseases at a molecular level as well as
for developing techniques for efficient early diagnosis based on
molecular structural information. The chapters demonstrate also
applications vibrational spectroscopy in proteomics and the
characterization of micro organisms. The second section of the book
introduces surface enhanced Raman scattering (SERS), demonstrates
the application of the effect in the biomedical field and develops
the concept of multifunctional nanosensors. The measurement of
intrinsic optical signals from biological objects such as nerve
tissue are discussed in the next section of the book. Chapters deal
also with Coherent anti-Stokes Raman scattering (CARS) and
fluorescence fluctuation spectroscopy. Other chapters illustrate
how photons of very different energies, in the Terahertz and in the
ultra violet range, can be used to retrieve molecular structural
information from native biomolecules. The electrical properties of
protein molecules adsorbed onto a gold substrate are studied by
using a scanning Kelvin nanoprobe in a microarray format. The final
chapters in the book demonstrate the powerful combination of
different spectroscopic techniques for the characterization of
biomolecules as well as native and engineered biomaterials. These
chapters combine information from Raman and Inelastic Neutron
Scattering, optical absorbance and energy dispersive X-ray
analysis, positron annihilation lifetime spectroscopy (PALS), 1H
NMR, and 129Xe NMR X-ray diffraction and fluorescence resonance
energy transfer.
The interactions of microbes with surfaces are important to many
natural and engineered processes, affecting a wide range of
applications from decontamination of surfaces or drinking water,
prevention of microbial colonization of biomaterials, and bacterial
processes in the environment. Therefore, there is great interest in
understanding the fundamental behavior of microbes at surfaces.
Topics are included that address interactions of cells with a
number of surfaces for antifouling and microbial cell-based sensor
applications; mechanistic studies of antimicrobial peptides and
quorum sensing; exploration of experimental and theoretical models
of a cell surface; cell surface display of peptides and enzymes as
biofabrication techniques; the fate and transport of bacteria in
the natural environment, as well as new experimental tools or
modeling techniques to study interactions at the microbial
surface.
While most of the papers are geared towards a specific
application, they all contain fundamental information regarding
bacterial behavior at interfaces that allows their contents to
translate to other problems, as well. For example, many parallels
are noted between the way bacteria interact with proteins-coated
polymers on a catheter and bacterial-peptide interactions in a
cellular detection assay. An overlying theme of all the manuscripts
is that they represent studies of microbial interfaces using the
most sophisticated experimental and modeling tools available, and
many feature interdisciplinary approaches to tackling the given
problems.
The purpose of this book is to provide an update on some of the
latest research and applications in the broad field of ionic
liquids. This volume spans research and development activities
ranging from fundamental and experimental investigations to
commercial applications. A brief history of the field is included,
as well as both new developments and reviews organized in the
general topical areas of applications, materials, biomass
processing, and fundamental studies. This book attempts to propel
the field forward by bringing together contributions from some of
the foremost researchers on ionic liquids. Recent products and new
large-scale processes using ionic liquids, both in operation and
being announced, indicate that an exciting new chapter in this
field is about to begin. The authors summarize some of the history,
applications, conferences, books, databases, issues related to data
quality and toxicity for researchers working in the field of ionic
liquids and includes an overview for each proceeding chapter with
an introduction about the authors.
The field of quantum chemistry has grown so immensely that the
importance of some of the earliest work and the earliest pioneers
of quantum chemistry is unfamiliar to many of today's youngest
scientists in the field. Thus, this book is an attempt to preserve
some of the very valuable, early history of quantum chemistry,
providing the reader with not only a perspective of the science,
but a perspective of the early pioneers themselves, some of whom
were quite interesting characters. The symposium on which this book
is based came about because one of the co-editors (ETS) came to a
conviction that the contributions such as those by George Wheland
to quantum chemistry and Otto Schmidt to free electron theory
should be better appreciated and known. He organized a symposium in
which quantum chemistry pioneers, both those celebrated by everyone
and those seemingly overlooked by posterity, would be recognized.
While this volume is certainly not a history of quantum chemistry,
it does cover many highlights over a period of about sixty years.
This volume consists of chapters based upon ten of the
presentations at the symposium "Pioneers of Quantum Chemistry" held
March 28, 2011, at the 241st ACS National Meeting in Anaheim, CA.
Climate change is a major challenge facing modern society. The
chemistry of air and its influence on the climate system forms the
main focus of this book. Vol. 2 of Chemistry of the Climate System
takes a problem-based approach to presenting global atmospheric
processes, evaluating the effects of changing air compositions as
well as possibilities for interference with these processes through
the use of chemistry.
More than four decades have passed since surface-enhanced Raman
scattering (SERS) was discovered. In today's world SERS has been
established as a plasmon-based spectroscopy with ultra-high
sensitivity and versatility at the forefront of the developments in
plasmonics. SERS has been developing with the advances in
nanoscience and nanotechnology. The "SERS world" has grown up
markedly for the last 20 years or so, and recently the wider
concept of, plasmon-enhanced spectroscopy was born.
Plasmon-enhanced spectroscopy contains not only SERS but also
tip-enhanced Raman scattering (TERS), surface-enhanced infrared
absorption (SEIRA), surface-enhanced fluorescence (SEF), and more.
Through these novel spectroscopies various amazing properties of
plasmons have become known, providing new exciting research fields.
One of the main purposes of the book is to convey the enthusiastic
discussion on plasmon-enhanced spectroscopy at the symposium to the
scientific community. This book reports leading-edge advances in
the theory of plasmonic enhancement and application of
plasmon-enhanced spectroscopy to biology, chemistry, physics,
materials science, and medicine. Many books have been published
about SERS, but this may be the first time that a book on a wide
area of plasmon-enhanced spectroscopy has ever been published. The
book consists of two volumes; the second volume discusses TERS,
SEIRA, and other topics related to plasmon-enhanced spectroscopy.
What Arieh Warshel and fellow 2013 Nobel laureates Michael Levitt
and Martin Karplus achieved - beginning in the late 1960s and early
1970s when computers were still very primitive - was the creation
of methods and programs that describe the action of biological
molecules by 'multiscale models'. In this book, Warshel describes
this fascinating, half-century journey to the apex of science.From
Kibbutz Fishponds to The Nobel Prize is as much an autobiography as
an advocacy for the emerging field of computational science. We
follow Warshel through pivotal moments of his life, from his
formative years in war-torn Israel in an idealistic kibbutz that
did not encourage academic education; to his time in the army and
his move to the Technion where he started in his obsession of
understanding the catalytic power of enzymes; to his eventual
scientific career which took him to the Weizmann Institute, Harvard
University, Medical Research Council, and finally University of
Southern California. We read about his unique contributions to the
elucidation of the molecular basis of biological functions, which
are combined with instructive stories about his persistence in
advancing ideas that contradict the current dogma, and the nature
of his scientific struggle for recognition, both personal and for
the field to which he devoted his life. This is, in so many ways,
more than just a memoir: it is a profoundly inspirational tale of
one man's odyssey from a kibbutz that did not allow him to go to a
university to the pinnacle of the scientific world, highlighting
that the correct mixture of persistence, talent and luck can lead
to a Nobel Prize.
More than four decades have passed since surface-enhanced Raman
scattering (SERS) was discovered. In today's world SERS has been
established as a plasmon-based spectroscopy with ultra-high
sensitivity and versatility at the forefront of the developments in
plasmonics. SERS has been developing with the advances in
nanoscience and nanotechnology. The "SERS world" has grown up
markedly for the last 20 years or so, and recently the wider
concept of, plasmon-enhanced spectroscopy was born.
Plasmon-enhanced spectroscopy contains not only SERS but also
tip-enhanced Raman scattering (TERS), surface-enhanced infrared
absorption (SEIRA), surface-enhanced fluorescence (SEF), and more.
Through these novel spectroscopies various amazing properties of
plasmons have become known, providing new exciting research fields.
One of the main purposes of the book is to convey the enthusiastic
discussion on plasmon-enhanced spectroscopy at the symposium to the
scientific community. This book reports leading-edge advances in
the theory of plasmonic enhancement and application of
plasmon-enhanced spectroscopy to biology, chemistry, physics,
materials science, and medicine. Many books have been published
about SERS, but this may be the first time that a book on a wide
area of plasmon-enhanced spectroscopy has ever been published. The
book consists of two volumes; the first volume contains the
introductory review by George Schatz followed by eight chapters,
which are mainly concerned with SERS.
Engel and Reid's Physical Chemistry gives students a contemporary
and accurate overview of physical chemistry while focusing on basic
principles that unite the sub-disciplines of the field. The Third
Edition continues to emphasize fundamental concepts and presents
cutting-edge research developments that demonstrate the vibrancy of
physical chemistry today.
Poly(lactic-co-glycolic acid) (PLGA) Nanoparticles for Drug
Delivery is a comprehensive guide to PLGA nanoparticles for
targeting various diseases, covering principles, formation,
characterization, applications, regulations and the latest
advances. Sections introduce the fundamental aspects of PLGA
nanoparticles for drug delivery, including properties, preparation
methods, characterization, drug loading methods, and drug release
mechanisms, along with a focus on applications. Application of PLGA
nanoparticles for the treatment of cancer, inflammatory, cerebral,
cardiovascular, and infectious diseases, as well as in regenerative
medicine, photodynamic and photothermal therapy, and gene therapy,
are all explained in detail. The final chapters explore recent
advances and regulatory aspects. This book is a valuable resource
for researchers and advanced students across nanomedicine, polymer
science, bio-based materials, chemistry, biomedicine,
biotechnology, and materials engineering, as well as for industrial
scientists and R&D professionals with an interest in
nanoparticles for drug delivery, pharmaceutical formulations and
regulations, and development of innovative biodegradable materials.
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