انتشار
thumb|right| Some particles are Dissolution (chemistry)|dissolved in a glass of water. At first, the particles are all near one top corner of the glass. If the particles randomly move around ("diffuse") in the water, they eventually become distributed randomly and uniformly from an area of high concentration to an area of low, and organized (diffusion continues, but with no net [[flux).]] thumb|Time lapse video of diffusion a dye dissolved in water into a gel.
AI overview
Diffusion is the process where particles randomly move around and gradually spread out from areas where they're concentrated to areas where they're sparse, until they're distributed evenly throughout. This matters because it's a fundamental way that substances mix and spread in liquids and other materials, happening naturally without any external force pushing them along.
AI-generated from the Wikipedia summary — may contain errors.
Research
590,974 papers- Protein Diffusion Along Protein and DNA Lattices: Role of Electrostatics and Disordered Regions.Annual review of biophysics · 2023
- Transport in the Brain Extracellular Space: Diffusion, but Which Kind?International journal of molecular sciences · 2022
- Diffusion in confined geometries.Chemphyschem : a European journal of chemical physics and physical chemistry · 2009
- Investigation of time-dependent diffusion in extra-axial brain tumors using oscillating-gradient spin-echo.Magnetic resonance imaging · 2023
- INTERCELLULAR DIFFUSION.Science (New York, N.Y.) · 1964
via PubMed
Wikidata facts
- Image
- Diffusion.svg
Sources (4)
Article · العربية
الانتشار هي عملية توزيع جزيئات أو ذرات أو حبيبات بشكل متساوٍ في فراغ أو في حيّز متاح أو تخللها خلال حاجز غشائي. ويتم الانتشار بانتقال الجزيئات أو الذرات من منطقة ذات تركيز عالي إلى منطقة ذات تركيز أقل حتى يتساوى تركيز الجزيئات في المنطقتين. تنشأ ظاهرة الانتشار بسبب الحركة الحرارية العشوائية لجزيئات المادة التي تصطدم مع بعضها البعض وتتباعد لتشغل جميع الحيز المتاح لها.
Abstract from DBpedia / Wikipedia · CC BY-SA