File:Selenium nanosystem.png
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Русский: Измерение распределения электрического потенциала в селенсодержащей гибридной полимерной наносистеме с помощью атомно-силового микроскопа. Метод зонда Кельвина.
Приведены изображения топографии поверхности (слева) и распределения поверхностного потенциала (справа). Размер скана 3,8 x3,8 мкм. Образец представляет собой гибридную наносистему на основе нуль-валентных наночастиц селена, стабилизиронных полиэлектролитным комплексом додецилсульфата натрия (ДСН) с катионным сополимером N-винилпирролидона и N,N,N-триэтилметакрилоилоксиэтиламмоний иодида. Изображения получены с помощью атомно-силового микроскопа SmartSPM, AIST-NT. Кельвин изображение (справа) показывает, что заряд комплекса распределяется неравномерно: контуры мицелл, толщиной порядка 20 нм, образованы положительно заряженными фрагментами сополимера, а внутренняя область заполнена отрицательно заряженным ДСН.English: Electric potential distribution in selenium-containing hybrid polymer nanosystem as measured by means of atomic-force microscope (Kelvin probe method). AFM images of surface topography (left) and surface potential distribution (right). Scan size is 3.8 x3.8 microns. Hybrid nanosystem based on zero-valence selenium nanoparticles, stabilized by polyelectrolyte complex of sodium dodecyl sulfate (SDS) with the cation copolymer (CC) P(VP-C) of N-vinylpyrrolidone (VP) and N,N,N-triethyl-N-methacryloyloxyethylammonium iodide (C) was studied. The images were obtained by means of atomic-force microscope SmartSPM, AIST-NT. Kelvin probe image (right) displays irregular arrangement of complex charge along the surface: micelles edges with a 20 nm width, consist of positively charged copolymer fragments, but the inner part includes negatively charged SDS. |
| Date | |
| Source | Own work |
| Author | Marina Temiryazeva, T.E. Sukhanova, S.V. Valueva, M.E. Vylegzhanina |
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This image was uploaded as part of European Science Photo Competition 2015. |
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
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| current | 08:08, 14 December 2015 | | 525 × 256 (168 KB) | Marina Temiryazeva (talk | contribs) | User created page with UploadWizard |
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