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Dynamic light scattering (DLS) is a technique in physics that can be used to determine the size distribution profile of small particles in suspension or polymers in solution. In the scope of DLS, temporal fluctuations are usually analyzed using the intensity or photon auto-correlation function (also known as photon correlation spectroscopy or quasi-elastic light scattering). In the time domain analysis, the autocorrelation function (ACF) usually decays starting from zero delay time, and faster dynamics due to smaller particles lead to faster decorrelation of scattered intensity trace. It has been shown that the intensity ACF is the Fourier transform of the power spectrum, and therefore the DLS measurements can be equally well performed in the spectral domain. DLS can also be used to probe

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  • Dynamický rozptyl světla (cs)
  • Dynamische Lichtstreuung (de)
  • Dispersión dinámica de luz (es)
  • Dynamic light scattering (en)
  • Diffusion dynamique de la lumière (fr)
  • Diffusione dinamica della luce (it)
  • Espalhamento dinâmico de luz (pt)
  • Динамическое рассеяние света (ru)
  • 动态光散射 (zh)
rdfs:comment
  • Bei der dynamischen Lichtstreuung (DLS), auch Photonenkorrelationsspektroskopie (PCS) oder quasielastische Lichtstreuung (QELS), handelt es sich um eine Analyse-Methode, bei der das Streulicht eines Lasers an einer gelösten bzw. suspendierten Probe ermittelt wird. Sie wird am häufigsten bei Polymeren und Biopolymeren wie zum Beispiel Proteinen angewandt, um den hydrodynamischen Radius der Moleküle zu bestimmen. (de)
  • La dispersión dinámica de luz (DDL o DLS, por sus siglas en inglés de "Dynamic light Scattering"), espectroscopia de correlación de fotones o dispersión cuasi-elástica de luz es una técnica físico-química empleada para la determinación de la distribución de tamaños de partículas en suspensión, o macromoléculas en solución tales como proteínas o polímeros.​ (es)
  • La diffusion dynamique de la lumière (en anglais, dynamic light scattering ou DLS) est une technique d'analyse spectroscopique non destructive permettant d'accéder à la taille de particules en suspension dans un liquide ou de chaînes de polymère en solution de 1 à 500 nm[réf. nécessaire] de diamètre environ. (fr)
  • La diffusione dinamica della luce (nota anche come spettroscopia a correlazione di fotoni o diffusione quasi elastica della luce) è una tecnica che nella fisica può essere utilizzata per determinare il profilo della distribuzione di piccole particelle in sospensione o polimeri in soluzione. Può anche essere usata per sondare il comportamento di fluidi complessi come le soluzioni di polimero concentrato. (it)
  • Динамическое рассеяние света (англ. dynamic light scattering) — представляет собой совокупность таких явлений как изменение частоты (Доплеровский сдвиг), интенсивности и направления движения света прошедшего через среду движущихся (Броуновских) частиц. Чаще понятие «Динамическое рассеяние света» можно встретить при упоминании о «методе динамического рассеяния света» как о способе измерения размеров частиц и об инструментальных средствах, которые в своей конструкции и алгоритмах обработки сигнала реализуют этот метод. (ru)
  • 动态光散射,也称作光子相关光谱或准弹性光散射,是一种物理表征手段,用来测量溶液或悬浮液中的粒徑分布,也可以用来测如量高分子浓溶液等的复杂流体的行为。 (zh)
  • Dynamický rozptyl světla (DLS) je metoda vhodná pro měření velikosti částic v submikronové oblasti. Tato metoda měří Brownův pohyb částic a přiřazuje ho k velikostem částic. Brownův pohyb je náhodný pohyb částic, který vzniká z důvodu narážení molekul rozpouštědla, které jsou kolem částic. Čím větší částice jsou, tím pomalejší je Brownův pohyb. Při měření díky Brownovu pohybu kolísá intenzita rozptýleného světla a to je detekováno pomocí vhodného optického uspořádání. Základem této techniky je měření fluktuace intenzity rozptýleného světla laserového paprsku okolo jeho průměrné hodnoty. (cs)
  • Dynamic light scattering (DLS) is a technique in physics that can be used to determine the size distribution profile of small particles in suspension or polymers in solution. In the scope of DLS, temporal fluctuations are usually analyzed using the intensity or photon auto-correlation function (also known as photon correlation spectroscopy or quasi-elastic light scattering). In the time domain analysis, the autocorrelation function (ACF) usually decays starting from zero delay time, and faster dynamics due to smaller particles lead to faster decorrelation of scattered intensity trace. It has been shown that the intensity ACF is the Fourier transform of the power spectrum, and therefore the DLS measurements can be equally well performed in the spectral domain. DLS can also be used to probe (en)
  • O espalhamento dinâmico de luz (em inglês DLS, Dynamic Light Scattering) é uma técnica de caracterização físico-química que mede a distribuição do tamanho de pequenas partículas e moléculas em solução líquida, sendo preciso e rápido para medir a distribuição de tamanho de partículas com mesmo tamanho, mas não sendo tão preciso com diferenças de tamanho muito grandes. O DLS é muito importante para a caracterização do tamanho hidrodinâmico de nanopartículas em fluidos biológicos como plasma e diferentes pHs fisiológicos. (pt)
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