"http://www.isvav.cz/projectDetail.do?rowId=IAC1065004"^^ . . "Dopl\u0148kov\u00FD grant roz\u0161\u00ED\u0159\u00ED kmenov\u00FD projekt o mo\u017Enost m\u011B\u0159it lok\u00E1ln\u00ED dynamickou viskozitu prost\u0159ed\u00ED sondou, kter\u00E1 zauj\u00EDm\u00E1 femtolitrov\u00FD objem a je prostorov\u011B um\u00EDs\u0165ov\u00E1na pomoc\u00ED fokusovan\u00E9ho laserov\u00E9ho svazku. Princip metody spo\u010D\u00EDv\u00E1 v detekci a anal\u00FDze tepeln\u00E9ho pohybu sondy v prost\u0159ed\u00ED. Jej\u00ED aktu\u00E1ln\u00ED polohu lze m\u011B\u0159it s nanometrovou p\u0159esnost\u00ED pomoc\u00ED z\u00E1\u0159en\u00ED, kter\u00E9 rozptyluje. Tato metoda ji\u017E byla \u0159e\u0161itelsk\u00FDm t\u00FDmem zvl\u00E1dnuta. Postdoktorandova aktivita se zam\u011B\u0159\u00ED na \u00FApravu existuj\u00EDc\u00ED aparatury tak, aby bylo mo\u017Eno zaznamenat polohu sondy kmitaj\u00EDc\u00ED v optick\u00E9 pasti s frekvencemi v \u0159\u00E1du des\u00EDtek kHz. Anal\u00FDza z\u00EDskan\u00FDch dat umo\u017En\u00ED ur\u010Dit silovou konstantu optick\u00E9 pasti a n\u00E1sledn\u011B dynamickou viskozitu v submikrometrov\u00E9m okol\u00ED kulov\u00E9 sondy. Takto modifikovanou aparaturou lze monitorovat viskozitu v bl\u00EDzkosti povrch\u016F \u010Di uvnit\u0159 transparentn\u00EDch objekt\u016F (nap\u0159. \u017Eiv\u00FDch bun\u011Bk) s v\u011Bt\u0161\u00EDm prostorov\u00FDm a \u010Dasov\u00FDm rozli\u0161en\u00EDm, ne\u017E umo\u017E\u0148uj\u00ED jin\u00E9 n\u00E1m zn\u00E1m\u00E9 metody." . "Measurement of the local viscosity by the optically trapped probe"@en . . . . . . "V r\u00E1mci \u0159e\u0161en\u00ED projektu byla vyvinuta metodika pro detekci tepeln\u00FDch kmit\u016F opticky uchycen\u00E9 sondy a n\u00E1sledn\u00E9 matematick\u00E9 zpracov\u00E1n\u00ED z\u00EDskan\u00E9ho z\u00E1znamu poloh, kter\u00E9 poskytuje \u00FAdaje o viskozit\u011B v okol\u00ED sondy."@cs . "1"^^ . . "M\u011B\u0159en\u00ED lok\u00E1ln\u00ED viskozity pomoc\u00ED opticky uchycen\u00E9 mikrosondy" . "The supplementary grant will extend the main project with the possibility of the measurement of the local viscosity by the probe of femtoliter volume spatially positioned with a focused laser beam. The principle of the method lies in the detection and analysis of thermal position fluctuations of the probe. The probe position can be measured with nanometer accuracy by the detection of the radiation which has been scattered by the probe. This approach has already been applied within the main project solution. The activity of the post-doc will be aimed at the adaptation of the present experimental setup so that it enables to record the position of the probe oscillating in the optical trap with the frequencies of tens of kHz. The analysis of the acquired data gives the force constant of the optical trap and consequently the viscosity in the sub-micron neighbourhood of the probe."@en . . "3"^^ . . "0"^^ . "3"^^ . . . . . "0"^^ . . . . "IAC1065004" .