Laser Tweezers in Cell Biology

Laser Tweezers in Cell Biology PDF Author:
Publisher: Academic Press
ISBN: 0080859534
Category : Science
Languages : en
Pages : 241

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Book Description
Volume 55 in Methods in Cell Biology is a concise laboratory book that emphasizes the methods and technologies needed to use single polarized laser light source that functions simultaneously as an optical trap and a dual-beam interferometer.* * Provides a practical laboratory guide for methods and technologies used with laser tweezers* Includes comprehensive and easy-to-follow protocols

Laser Tweezers in Cell Biology

Laser Tweezers in Cell Biology PDF Author:
Publisher: Academic Press
ISBN: 0080859534
Category : Science
Languages : en
Pages : 241

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Book Description
Volume 55 in Methods in Cell Biology is a concise laboratory book that emphasizes the methods and technologies needed to use single polarized laser light source that functions simultaneously as an optical trap and a dual-beam interferometer.* * Provides a practical laboratory guide for methods and technologies used with laser tweezers* Includes comprehensive and easy-to-follow protocols

Optical Tweezers

Optical Tweezers PDF Author: Philip H. Jones
Publisher: Cambridge University Press
ISBN: 1107051169
Category : Science
Languages : en
Pages : 565

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Book Description
A comprehensive guide to the theory, practice and applications of optical tweezers, combining state-of-the-art research with a strong pedagogic approach.

Micromanipulation by Light in Biology and Medicine

Micromanipulation by Light in Biology and Medicine PDF Author: Karl Otto Greulich
Publisher: Springer Science & Business Media
ISBN: 1461241103
Category : Science
Languages : en
Pages : 308

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Book Description
There are probably few people who do not dream of the good old times, when do ing science often meant fascination, excitement, even adventure. In our time, do ing science involves often technology and, perhaps, even business. But there are still niches where curiosity and fascination have their place. The subject of this book, technological as its title may sound, is one of the fortunate examples. It will report on lasers generating the coldest places in the Universe, and on table top laser microtools which can produce a heat "inferno" as it prevails in the interior of the Sun, or simulate, for specific plant cells, microgravity of the space around our plan et Earth. There will be some real surprises for the reader. The applications range from basic studies of the driving forces of cell division (and thus life) via genetic modification of cells (for example, for plant breeding) to medical applications such as blood cell analysis and finally in vitro fertilization. What are these instruments: laser microbeams and optical tweezers? Both are lasers coupled with a fluorescence microscope. The laser microbeam uses a pulsed ultraviolet laser. Light is focused, as well as possible, in space and time, in order to obtain extremely high light intensities - high enough to generate, for a very short instant, extremely hot spots which can be used to cut, fuse or perforate biological material.

Optical Trapping and Manipulation of Neutral Particles Using Lasers

Optical Trapping and Manipulation of Neutral Particles Using Lasers PDF Author: Arthur Ashkin
Publisher: World Scientific Publishing Company Incorporated
ISBN: 9789810240578
Category : Science
Languages : en
Pages : 915

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Book Description
This important volume contains selected papers and extensive commentaries on laser trapping and manipulation of neutral particles using radiation pressure forces. Such techniques apply to a variety of small particles, such as atoms, molecules, macroscopic dielectric particles, living cells, and organelles within cells. These optical methods have had a revolutionary impact on the fields of atomic and molecular physics, biophysics, and many aspects of nanotechnology.In atomic physics, the trapping and cooling of atoms down to nanokelvins and even picokelvin temperatures are possible. These are the lowest temperatures in the universe. This made possible the first demonstration of Bose-Einstein condensation of atomic and molecular vapors. Some of the applications are high precision atomic clocks, gyroscopes, the measurement of gravity, cryptology, atomic computers, cavity quantum electrodynamics and coherent atom lasers.A major application in biophysics is the study of the mechanical properties of the many types of motor molecules, mechanoenzymes, and other macromolecules responsible for the motion of organelles within cells and the locomotion of entire cells. Unique in vitro and in vivo assays study the driving forces, stepping motion, kinetics, and efficiency of these motors as they move along the cell's cytoskeleton. Positional and temporal resolutions have been achieved, making possible the study of RNA and DNA polymerases, as they undergo their various copying, backtracking, and error correcting functions on a single base pair basis.Many applications in nanotechnology involve particle and cell sorting, particle rotation, microfabrication of simple machines, microfluidics, and other micrometer devices. The number of applications continues to grow at a rapid rate.The author is the discoverer of optical trapping and optical tweezers. With his colleagues, he first demonstrated optical levitation, the trapping of atoms, and tweezer trapping and manipulation of living cells and biological particles.This is the only review volume covering the many fields of optical trapping and manipulation. The intention is to provide a selective guide to the literature and to teach how optical traps really work.

Toxicogenomics and Proteomics

Toxicogenomics and Proteomics PDF Author: James J. Valdes
Publisher: IOS Press
ISBN: 9781586034023
Category : Medical
Languages : en
Pages : 220

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Book Description
Annotation The field of toxicology has developed a well-characterized set of techniques to assess the behavioral and histopathological consequences of exposure to environmental insults using a number of animal models. These techniques are suitable for determining crude endpoints of exposure such as death, but are not optimal for assessing the more subtle effects of very low level or multi-agent chemical exposures, nor do they offer mechanistic explanations at the molecular level. This book is designed to have a mix of chapters devoted to classical toxicology followed by those focused more on the emerging techniques of toxicogenomics and proteomics. In this way, the relevance of new technologies such as gene arrays to classical toxicologic problems is made evident. Finally, because the worst of the world's toxicology problems reside in developing nations while the latest technical developments are occurring in the industrial nations, we sought to provide a balance of both scientific and geographical perspectives from researchers engaged in toxicology and public health research.

Physical Biology of the Cell

Physical Biology of the Cell PDF Author: Rob Phillips
Publisher: Garland Science
ISBN: 1134111584
Category : Science
Languages : en
Pages : 1089

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Book Description
Physical Biology of the Cell is a textbook for a first course in physical biology or biophysics for undergraduate or graduate students. It maps the huge and complex landscape of cell and molecular biology from the distinct perspective of physical biology. As a key organizing principle, the proximity of topics is based on the physical concepts that

Optical Trapping and Manipulation

Optical Trapping and Manipulation PDF Author: Philip Jones
Publisher: MDPI
ISBN: 303943537X
Category : Technology & Engineering
Languages : en
Pages : 128

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Book Description
We are pleased to present “Optical Trapping and Manipulation: From Fundamentals to Applications”, a Special Issue of Micromachines dedicated to the latest research in optical trapping. In recognition of the broad impact of optical manipulation techniques across disciplines, this Special Issue collected contributions related to all aspects of optical trapping and manipulation. Both theoretical and experimental studies were welcome, and applications of optical manipulation methods in fields including (but not limited to) single molecule biophysics, cell biology, nanotechnology, atmospheric chemistry, and fundamental optics were particularly welcome in order to showcase the breadth of the current research. The Special Issue accepted diverse forms of contributions, including research papers, short communications, methods, and review articles representing the state-of-the-art in optical trapping.

Methods in Cellular Imaging

Methods in Cellular Imaging PDF Author: Ammasi Periasamy
Publisher: Springer
ISBN: 1461475139
Category : Science
Languages : en
Pages : 473

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Book Description
Advances in technology have revolutionized the development of light microscopy techniques in biomedical research, thus improving visualization of the microstructure of cells and tissues under physiological conditions. Fluorescence microscopy methods are non-contact and non-invasive and provide high spatial and temporal resolution that other laboratory techniques cannot. This well-illustrated book targets graduate students and scientists who are new to the state-of-the-art fluorescence microscopy techniques used in biological and clinical imaging. It explains basic concepts and imaging procedures for wide-field, confocal, multiphoton excitation, fluorescence resonance energy transfer (FRET), lifetime imaging (FLIM), spectral imaging, fluorescence recovery after photobleaching (FRAP), optical tweezers, total internal reflection, high spatial resolution atomic force microscopy (AFM), and bioluminescence imaging for gene expression. The usage of these techniques in various biological applications, including calcium, pH, membrane potential, mitochondrial signaling, protein-protein interactions under various physiological conditions, and deep tissue imaging, is clearly presented. The authors describe the approaches to selecting epifluorescence microscopy, the detectors, and the image acquisition and processing software for different biological applications. Step-by-step directions on preparing different digital formats for light microscopy images on websites are also provided.

Microscale Acoustofluidics

Microscale Acoustofluidics PDF Author: Thomas Laurell
Publisher: Royal Society of Chemistry
ISBN: 1849737061
Category : Technology & Engineering
Languages : en
Pages : 593

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Book Description
The manipulation of cells and microparticles within microfluidic systems using external forces is valuable for many microscale analytical and bioanalytical applications. Acoustofluidics is the ultrasound-based external forcing of microparticles with microfluidic systems. It has gained much interest because it allows for the simple label-free separation of microparticles based on their mechanical properties without affecting the microparticles themselves. Microscale Acoustofluidics provides an introduction to the field providing the background to the fundamental physics including chapters on governing equations in microfluidics and perturbation theory and ultrasound resonances, acoustic radiation force on small particles, continuum mechanics for ultrasonic particle manipulation, and piezoelectricity and application to the excitation of acoustic fields for ultrasonic particle manipulation. The book also provides information on the design and characterization of ultrasonic particle manipulation devices as well as applications in acoustic trapping and immunoassays. Written by leading experts in the field, the book will appeal to postgraduate students and researchers interested in microfluidics and lab-on-a-chip applications.

Multiphoton Microscopy and Fluorescence Lifetime Imaging

Multiphoton Microscopy and Fluorescence Lifetime Imaging PDF Author: Karsten König
Publisher: Walter de Gruyter GmbH & Co KG
ISBN: 311043007X
Category : Science
Languages : en
Pages : 785

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Book Description
This monograph focuses on modern femtosecond laser microscopes for two photon imaging and nanoprocessing, on laser tweezers for cell micromanipulation as well as on fluorescence lifetime imaging (FLIM) in Life Sciences. The book starts with an introduction by Dr. Wolfgang Kaiser, pioneer of nonlinear optics and ends with the chapter on clinical multiphoton tomography, the novel high resolution imaging technique. It includes a foreword by the nonlinear microscopy expert Dr. Colin Sheppard. Contents Part I: Basics Brief history of fluorescence lifetime imaging The long journey to the laser and its use for nonlinear optics Advanced TCSPC-FLIM techniques Ultrafast lasers in biophotonics Part II: Modern nonlinear microscopy of live cells STED microscopy: exploring fluorescence lifetime gradients for super-resolution at reduced illumination intensities Principles and applications of temporal-focusing wide-field two-photon microscopy FLIM-FRET microscopy TCSPC FLIM and PLIM for metabolic imaging and oxygen sensing Laser tweezers are sources of two-photon effects Metabolic shifts in cell proliferation and differentiation Femtosecond laser nanoprocessing Cryomultiphoton imaging Part III: Nonlinear tissue imaging Multiphoton Tomography (MPT) Clinical multimodal CARS imaging In vivo multiphoton microscopy of human skin Two-photon microscopy and fluorescence lifetime imaging of the cornea Multiscale correlative imaging of the brain Revealing interaction of dyes and nanomaterials by multiphoton imaging Multiphoton FLIM in cosmetic clinical research Multiphoton microscopy and fluorescence lifetime imaging for resection guidance in malignant glioma surgery Non-invasive single-photon and multi-photon imaging of stem cells and cancer cells in mouse models Bedside assessment of multiphoton tomography