QUÉ SIGNIFICA FLUORESCENCE EN INGLÉS
Fluorescencia
La fluorescencia es la emisión de luz por una sustancia que ha absorbido luz u otra radiación electromagnética. También ocurre cuando las moléculas son excitadas a estados electrónicos superiores por el bombardeo energético de electrones, como ocurre, por ejemplo, en la aurora natural, las explosiones nucleares de alta altitud y los experimentos con cañones de electrones por cohetes. Es una forma de luminiscencia. En la mayoría de los casos, la luz emitida tiene una longitud de onda más larga, y por lo tanto menor energía, que la radiación absorbida. Sin embargo, cuando la radiación electromagnética absorbida es intensa, es posible que un electrón absorba dos fotones; Esta absorción de dos fotones puede conducir a la emisión de radiación que tiene una longitud de onda más corta que la radiación absorbida. La radiación emitida puede ser también de la misma longitud de onda que la radiación absorbida, denominada "fluorescencia de resonancia". Los ejemplos más llamativos de fluorescencia ocurren cuando la radiación absorbida está en la región ultravioleta del espectro, y por lo tanto invisible para el ojo humano, y la luz emitida está en la región visible.
definición de fluorescence en el diccionario inglés
La primera definición de fluorescencia en el diccionario es la emisión de luz u otra radiación de átomos o moléculas que son bombardeadas por partículas, como electrones, o por radiación de una fuente separada. La radiación de bombardeo produce átomos, moléculas o iones excitados y estos emiten fotones a medida que retroceden al estado fundamental. Otra definición de fluorescencia es una emisión de fotones que cesa tan pronto como se interrumpe la radiación de bombardeo. La fluorescencia también es una emisión de fotones para la cual el tiempo de vida promedio de los átomos y moléculas excitados es inferior a aproximadamente 10-8 segundos.
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CITAS EN INGLÉS CON «FLUORESCENCE»
Citas y frases célebres con la palabra
fluorescence.
According to the belief, molecules closer together than 200 nanometers could not be told apart with focused light. This is because, in a packed molecular crowd, the molecules shout out their fluorescence simultaneously, causing their signal, their voices, to be confused.
10 LIBROS DEL INGLÉS RELACIONADOS CON «FLUORESCENCE»
Descubre el uso de
fluorescence en la siguiente selección bibliográfica. Libros relacionados con
fluorescence y pequeños extractos de los mismos para contextualizar su uso en la literatura.
1
Principles of
Fluorescence Spectroscopy
The third edition of the established classic text reference, Principles of Fluorescence Spectroscopy, will enhance upon the earlier editions' successes.
2
Fluorescence Microscopy
The first volume deals with instrumentation and techniques for fluorescence microscopy, and includes a chapter on quantification and scanning. The second volume deals with the applications of fluorescence microscopy in many fields.
3
Handbook of
Fluorescence Spectroscopy and Imaging: From ...
Starting with the basic principles, the book goes on to treat fluorophores and labeling, single-molecule fluorescence spectroscopy and enzymatics, as well as excited state energy transfer, and super-resolution fluorescence imaging.
Markus Sauer, Johan Hofkens, Jörg Enderlein,
2010
4
Fluorescence Applications in Biotechnology and Life Sciences
With its multidisciplinary approach and excellent balance of research and diagnostic topics, this book will appeal to postgraduate students and a broad range of scientists and researchers in biology, physics, chemistry, biotechnology, ...
5
Fluorescence in Situ Hybridization (FISH): Application Guide
This FISH application guide provides an overview of the principles and the basic techniques of fluorescence in situ hybridization (FISH) and primed in situ hybridization (PRINS), which are successfully used to study many aspects of genomic ...
6
X-Ray
Fluorescence Spectrometry (XRF) in Geoarchaeology
X-Ray Fluorescence Spectrometry in Geoarchaeology provides a comprehensive overview of XRF applications in archaeology and anthropology. Expert contributors provide detailed information on the newest tools and techniques used in the field.
7
Fluorescence Sensors and Biosensors
The text begins with the development of aptamers (oligoribonucleotides) and biorecognition techniques based on periplasmic binding proteins.
Richard B. Thompson,
2005
8
Handbook of Biomedical
Fluorescence
Penned by pioneering researchers, the Handbook of Biomedical Fluorescence discusses fundamental aspects of fluorescence generation in organic molecules within tissue, theoretical and experimental views of how light propagation in tissue can ...
Mary-Ann Mycek, Brian W. Pogue,
2003
9
Introduction to Confocal
Fluorescence Microscopy
This book provides a comprehensive account of the theory of image formation in a confocal fluorescence microscope as well as a practical guideline to the operation of the instrument, its limitations, and the interpretation of confocal ...
10
X-Ray
Fluorescence Spectrometry
X-Ray Fluorescence Spectrometry, Second Edition includes: * The history of X-ray fluorescence spectrometry-new to this edition. * A critical review of the most useful X-ray spectrometers. * Techniques and procedures for quantitative and ...
10 NOTICIAS EN LAS QUE SE INCLUYE EL TÉRMINO «FLUORESCENCE»
Conoce de qué se habla en los medios de comunicación nacionales e internacionales y cómo se emplea el término
fluorescence en el contexto de las siguientes noticias.
Eco-Meets-Luxury In $12.5M Las Vegas Mansion - Forbes
... The residence exists between the rugged expanse of a protected natural area and the manufactured fluorescence of the Las Vegas Strip. «Forbes, Jul 15»
Microscope Upgrade Kit PicoQuant GmbH
The upgrade kit enhances the microscope's capabilities through the addition of time-resolved techniques such as fluorescence lifetime imaging ... «Photonics.com, Jul 15»
Analysts Set Novadaq Technologies PT at $16.71 (NASDAQ:NVDQ)
Novadaq Technologies Inc. primarily develops, manufactures and markets real-time fluorescence imaging products that are designed for use ... «Dakota Financial News, Jul 15»
Science is about to learn a whole lot about how climate change …
But some researchers thought that despite the faintness of the signal, dense green areas ought to give off enough fluorescence to be usefully ... «ExtremeTech, Jul 15»
Catastrophic floods caused by pollution
But the vivid colors have since faded. In 2006, scientists using portable x-ray fluorescence found CdS pigments in all the regions of the painting ... «Science Magazine, Jul 15»
Biologists manufacture bacteria that may one day treat an unhealthy …
To do that, they used a technique called bacterial conjugation to insert a gene called luciferase that codes for fluorescence into the gut ... «PBS NewsHour, Jul 15»
This Week in Nature
... cells "a surprisingly broad spectrum" of confocal single-molecule FRET and nanosecond fluorescence correlation spectroscopy methods that ... «GenomeWeb, Jul 15»
X-ray analysis sheds light on fading Modernist paintings
In addition to XANES, the team used X-ray fluorescence to look at thin cross-sections through the paint. Pouyet and colleagues also used ... «physicsworld.com, Jul 15»
A fluorescence-based bioassay for antibacterials and its application …
The Gram-positive bacteria exhibit a native fluorescence during their exponential growth phase due to the expression of improved yellow ... «Nature.com, Jul 15»
A Glowing Way to Monitor Forest Health
Through a ground-based study, a research team has now helped to confirm that this subtle glow, known as solar-induced chlorophyll fluorescence (SIF), can ... «Photonics.com, Jul 15»