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Fluorescence spectroscopy

Глоссарий терминов в нанотехнологиях
    A technique to measure the interaction of radiant energy with matter by passing emitted fluorescent light through a monochromator to record the fluorescence emission spectrum.




Fluorescence, английский
  1. Emission of light of particular wavelength, as a result of absorption of light at shorter wavelength. it is a property of some materials; each material has a specific wavelength of absorption and emission.

  2. Luminescence arising from irradiation with light

  3. The emission of visible light from a substance (such as a phosphor) as the result of, and during, the absorption of radiation of shorter wavelengths.

  4. The sending out of light from a substance which is receiving radiation

  5. Certain diamonds exhibit colored luminescence (usually blue) when exposed to strong sunlight or ultraviolet light. all you need to know about diamond fluorescence.

  6. Emission of visible light by a material such as diamond when it is simulated by higher energy x-rays, ultraviolet radiation or other forms of radiation. fluorescence continues only as long as the material is exposed to the radiation. strong or very strong fluorescence may make a diamond appear milky or oily especially in sunlight.

  7. Fluorescence happens when a diamond is exposed to ultraviolet light, it may emit a soft glow of white-ish, blue-ish or yellowish light. diamond grading reports will most often note whether a diamond has fluorescence, however, is not considered a grading factor, only a characteristic of that particular diamond.

  8. The property by which some minerals and some organic substances, when exposed to ultra¬violet radiations, emit a light of a color differing from their own, like the blue-white light emitted by scheelite.

  9. Emission of electromagnetic radiation, usually as visible light, that is caused by the flow of energy into the emitting body. the emission ceases abruptly when the excitation ceases. fly: the short, waste fibers that are released into the air in textile processing operations such as picking, carding, spinning, and weaving.

  10. The process in which molecules or matter absorb high energy photons and then emit lower energy photons. the difference in energy causes molecular vibrations.

  11. Phenomenon of absorption of electromagnetic radiation and its reemission at a lower energy (longer wavelength). in visual testing, fluorescence is typically a response to ultraviolet radiation.

  12. Phenomenon of absorption of electromagnetic radiation and its reemission at a lower energy (longer) visible light wavelength. fluorescence in ndt may be a material’s response to ultraviolet or ionizing radiation. the emission ceases as soon as the exciting energy is removed. differs from phosphorescence, which continues to emit after excitation energy is removed.

  13. Phenomenon of absorption of electromagnetic radiation and its reemission at a lower energy (longer) visible light wavelength. fluorescence may be a material’s response to ultraviolet or ionizing radiation. the emission ceases as soon as the exciting energy is removed. differs from phosphorescence, which continues to emit after excitation energy is removed. see also spectrofluorometer.

  14. Luminescent phenomenon exhibited by some substances where higher energy electromagnetic waves are absorbed and reemitted as lower energy waves. the emission ceases as soon as the exciting energy is removed. different from phosphorescence, which will continue to emit after the exciting energy is removed. in magnetic particle testing, pigments coating the magnetic particles are excited by invisible uv-a radiation and emit visible light.


Fluorescence immunoassay, английский
    Метод прямой иммунофлюоресценции (пиф), син. прямой иммунофлуоресцентный анализ см. immunofluorescence technique (иммунофлуоресцентный метод).


Fluorescence in-situ hybridization, английский

Fluorescence microscope, английский
  1. Microscope that uses a fluorescent dyed sample and sample emitted light to form a magnified image of the sample

  2. A microscope that uses natural fluorochromes or fluorescent stains to increase contrast


Fluorescence microscopy, английский
  1. A technique for acquiring microscopic images using fluorescence which is excited in the sample

  2. Microscopía fluorescente


Fluorescence-activated cell sorter (facs), английский
    Technique for using a flow cytometer to physically separate cells into two populations based on fluorescence intensity


Spectroscopy, английский
  1. Methods where the interaction of light with matter is utilized

  2. Спектроскопия ко к данному компоненту пробы, а не к каким-либо другим присутствующим ингредиентам.

  3. Спектроскопия. раздел физики, посвященный изучению спектров. менее распространенный термин спектрометрия может относиться к методам их количественного измерения, а термин спектрография относится к методам, в которых используется фоторегистрация и другие виды записи. применение спектроскопических методов в области аналитической химии получило название спектрального химического анализа. все эти методы основаны на взаимодействии электромагнитного излучения с веществом и обнаружении квантов энергии, испускаемых или поглощаемых при переходе вещества из одного энергетического состояния в другое. эмиссионная спектроскопия изучает спектры, образующиеся при дисперсии излучения, испускаемого возбуждаемым источником, абсорбционная спектроскопия — спектры, образующиеся , при поглощении (при определенных длинах волн) энергии излучения, испускаемого непрерывно действующим источником. для изучения спектральных линий атомов при- 9* 131

  4. The identification of materials by the analysis of their spectra.

  5. Spectrophotometry or spectroradiometry in which the spectrum, rather than being analyzed only by a processing unit, is presented as a digital signal for computer analysis or in a visible form to the operator for organoleptic examination.

  6. Spectrophotometry or spectroradiometry in which the spectrum, rather than being analyzed only by a processing unit, is presented in a visible form to the operator for organoleptic examination.

  7. The study of how radiant energy and a medium interact with respect to wavelength or frequency. see also polychromator spectrometer; spectrofluorometer; spectrophotometer; spectroradiometer.


Interaction, английский
  1. An effect which two or more substances such as drugs have on each other

  2. Взаимодействие

  3. N взаимодействие; talk-in-~ речь-во-взаимодействии level intercepted a прерванный intercultural a межкультурный (син. crosscultural) communication, relation

  4. Взаимодействие inter-agency coordinating committee (icc)

  5. Взаимодействие. см. drug interaction.

  6. Взаимодействие; взаимосвязь; интеракция; обмен информацией

  7. A pattern or sequence of message exchanges that accomplishes a purpose, such as performing an operation. objects in a collaboration interact by exchanging messages. messages can be signals or calls and can include conditions and time events.

  8. The direct manipulation (e.g. a gesture and inertia) of an element.

  9. Language use to maintain social relationships rather than achieve ends.


Fluorescent, английский
  1. Флуоресцирующий; флуоресцентный (о надписи)

  2. U-lamp a tubular lamp whose bulb has a 180° bend at the center,

  3. Having the property to produce fluorescence.

  4. The ability of certain materials to absorb energy and then immediately release that energy in the form of light


Monochromator, английский
  1. Device that uses prisms or gratings to separate or disperse the wavelengths of the spectrum into one band.

  2. Device that uses prisms or gratings to select and separate a single wavelength (in other words, monochromatic) of the electromagnetic spectrum. a monochromator is often used to transmit a desired narrow band of light or energy. see also spectrofluorometer.


Fluorescent probe, английский
    A stain used for tagging and labeling biological cells to detect structures, molecules, or proteins within the cell. also single-stranded pieces of dna, with enzymatically incorporated fluorescent tags, affixed in a microscopic array (dna microarray).


Field emission, английский
    The emission of electrons from the surface of a metallic conductor into a vacuum (or into an insulator) under influence of a strong electric field. in field emission, electrons penetrate through the potential surface barrier by virtue of the quantum-mechanical tunnel effect. also known as cold emission. see also electron tunneling.