Quantum Dot-Based Thermal Spectroscopy and Imaging of Optically Trapped Microspheres and Single Cells (pages 2162–2170)
Patricia Haro-González, William T. Ramsay, Laura Martinez Maestro, Blanca del Rosal, Karla Santacruz-Gomez, Maria del Carmen Iglesias-de la Cruz, Francisco Sanz-Rodríguez, Jing Yuang Chooi, Paloma Rodriguez Sevilla, Marco Bettinelli, Debaditya Choudhury, Ajoy K. Kar, José García Solé, Daniel Jaque and Lynn Paterson
Version of Record online: 11 FEB 2013 | DOI: 10.1002/smll.201201740
During optical trapping of living cells, water absorption causes relevant intracellular heating. Quatum dot fluorescence nanothermometry is used here to evaluate the magnitude of this laser-induced heating (that could be larger than 10 °C for moderate trapping powers) as well as to find routes to minimize it by, for example, an adequate selection of the trapping wavelength.