Studies on Raman Imaging of Gold Nanorods Coated in Cancer Cells

The seed crystal growth method, preparation of gold nanorods (Au-NRs) in 5-20 nm in diameter, average length to diameter ratio of 3.5 or so, its absorption spectrum range between 700 and 1100 nm, can be used as absorbing medium or the transmission electron microscope (SERS)enhancement basement, meet the demand in the diagnosis and treatment, through the transmission electron microscope (TEM) for Au-NRs are analyzed. Using displacement method, on the surface of the Au-NS surfactant cetyl trimethyl ammonium bromide (CTAB) is replaced by NIR photosensitive dye 3.3 '2-ethyl-S of aldehyde 3 carbocyanine iodine (DTTC) as the Raman probe molecules, reoccupy sulfonium polyethylene glycol (SH-PEG) as surface active agent to protect Au-NS, make it stabilized in the fluids, and to measure the SERS spectra of DTTC molecules combine with Au-NS. By Raman spectroscopy technology on coupling targeting tumor cells Raman analysis of the data graph obtained Raman spectra of different tumor cells, providing theoretical basis for the early diagnosis of cancer. More reading as you like>>>http://www.cusabio.com/Clone/mutM-1089574.html