Novel SERS substrate allows fast cancer cell imaging
Scientists in China have made graphene oxide–silver nanoparticle composites functionalised with folic acid (which can bind to the FRs). These were introduced into cancer cells and the localisation was then visualised using SERS mapping (the graphene oxide signal is very strong and can be used as an identifier of the composite). Only the FR-positive cells show a signal on the SERS map. The method is very fast with an integration time of 0.06s per pixel.
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Topic World Spectroscopy
Investigation with spectroscopy gives us unique insights into the composition and structure of materials. From UV-Vis spectroscopy to infrared and Raman spectroscopy to fluorescence and atomic absorption spectroscopy, spectroscopy offers us a wide range of analytical techniques to precisely characterize substances. Immerse yourself in the fascinating world of spectroscopy!